CN109027673B - Uninterrupted air supply system - Google Patents
Uninterrupted air supply system Download PDFInfo
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- CN109027673B CN109027673B CN201810933442.XA CN201810933442A CN109027673B CN 109027673 B CN109027673 B CN 109027673B CN 201810933442 A CN201810933442 A CN 201810933442A CN 109027673 B CN109027673 B CN 109027673B
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- liquefied petroleum
- weighing
- petroleum gas
- bag
- cloud server
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the field of liquefied petroleum gas, in particular to an uninterrupted gas supply system of the liquefied petroleum gas, which comprises a cloud server end, and a weighing device connected with a network of the cloud server end, wherein the weighing device is used for continuously weighing a liquefied petroleum gas steel cylinder in use by a user and transmitting gas quantity information of the corresponding liquefied petroleum gas steel cylinder to the cloud server end; the cloud server end obtains the residual gas quantity of the liquefied petroleum gas steel cylinder through the gas quantity information of the liquefied petroleum gas steel cylinder, and when the residual gas quantity of the liquefied petroleum gas steel cylinder is smaller than a preset distribution threshold value, distribution is arranged; the system of the invention can acquire the residual quantity of the liquefied petroleum gas cylinder of a user in advance, actively prepare and distribute the goods, and truly realize uninterrupted gas supply.
Description
Technical Field
The invention relates to the field of liquefied petroleum gas, in particular to an uninterrupted gas supply system for liquefied petroleum gas.
Background
The gas pipeline is paved in most towns at home, natural gas can be conveniently used by opening the switch, but the natural gas pipeline is difficult to realize in some mountain areas and remote areas, and the areas are basically liquefied petroleum gas used by liquefied petroleum gas cylinders. In the current practical use, the gas supply system of the gas station can not know the residual quantity of the liquefied petroleum gas cylinder of a user, basically, the user calls the gas station to request gas supply after the gas in the liquefied petroleum gas cylinder is used up, and the gas supply system of the gas station performs the stock distribution again, so that the time period is long, the efficiency is low, and the use of the user is influenced or the user needs to use the backup liquefied petroleum gas cylinder. Secondly, the weighing device of the existing liquefied petroleum gas steel cylinders is high in cost, one weighing device cannot be configured for each liquefied petroleum gas steel cylinder, or weighing cannot be performed for a long time, otherwise elastic deformation of a pressure sensor of the weighing device is irreversible, and weighing accuracy is affected. Again, the existing gas station gas supply system cannot track the full flow of the liquefied petroleum gas cylinder.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an uninterrupted gas supply system which can be used for knowing the residual quantity of a liquefied petroleum gas steel cylinder of a user in advance and actively preparing and distributing the liquefied petroleum gas.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The uninterrupted gas supply system comprises a cloud server end, and further comprises a weighing device connected with the cloud server end in a network manner, wherein the weighing device is used for continuously weighing the liquefied petroleum gas steel cylinders in use by a user and transmitting gas quantity information of the corresponding liquefied petroleum gas steel cylinders to the cloud server end; the cloud server side obtains the residual gas quantity of the liquefied petroleum gas steel cylinder through the gas quantity information of the liquefied petroleum gas steel cylinder, and when the residual gas quantity of the liquefied petroleum gas steel cylinder is smaller than a preset distribution threshold value, distribution is arranged.
Preferably, the air quantity information transmitted by the weighing device comprises a unique identifier of the weighing device, the cloud server side obtains user information of a corresponding user according to the unique identifier of the weighing device, obtains a distribution address of the user, and arranges distribution according to the distribution address of the user and information of each air supply store.
Preferably, the weighing device is provided with a weighing device positioning module, the cloud server terminal determines the delivery address of the user based on the position information provided by the weighing device, and the delivery is arranged according to the delivery address of the user and the information of each air supply store.
Preferably, the information of each air supply gate comprises the distance between the position of each gate and the distribution address of the user and/or the stock of each gate and/or the schedule information of the distributor and the distribution vehicle of each gate.
Preferably, the cloud server side predicts the air supply time of the user according to the air quantity information of the liquefied petroleum gas steel cylinders periodically transmitted by the weighing device to obtain the predicted air supply time so as to guide the stock arrangement of the air station or the store.
Preferably, the cloud server calculates the use speed of the corresponding user according to the gas amount information of the liquefied petroleum gas steel cylinder transmitted by the weighing device at regular intervals, and calculates to obtain the predicted gas supply time; and the cloud server side performs summarized calculation on the predicted air supply time of the user in the air station or store distribution area to obtain the air supply quantity of each store at each predicted time so as to guide the arrangement of store inventory.
Preferably, the system further comprises an electronic tag arranged on the liquefied petroleum gas steel cylinder, wherein the electronic tag records a unique ID for identifying the corresponding liquefied petroleum gas steel cylinder.
Preferably, the electronic tag comprises a tag processor, a tag battery module for supplying power, a tag positioning module, a tag communication module and a tag storage module, wherein the tag positioning module, the tag communication module and the tag storage module are connected with the tag processor; and the electronic tag periodically transmits the position information to the cloud server.
Preferably, the electronic tag can also be a passive chip, and the mobile phone or the card reader uploads the position information to the cloud server side when scanning codes or reading cards.
Preferably, the weighing device comprises a weighing seat and a fluid bag arranged on the weighing seat, a pressure sensor and a control circuit board are arranged in the weighing seat, the control circuit board comprises a microprocessor, and the pressure sensor is connected with the fluid bag and is electrically connected with the microprocessor; the pressure sensor detects the pressure signal and transmits the pressure signal to the microprocessor, and the microprocessor calculates the quality according to the pressure signal.
Preferably, the device further comprises an air bag which is arranged on the outer side of the fluid bag and is in contact connection with the fluid bag, the fluid bag is a liquid bag, the pressure sensor is connected with the air bag, the pressure is transmitted to the air bag after the fluid bag receives the pressure of the liquefied petroleum gas steel bottle, and the pressure sensor detects the pressure signal of the air bag and transmits the pressure signal to the microprocessor.
Preferably, the weighing seat comprises a weighing base 1 and a weighing tray 2, a fluid bag containing groove 20 for containing a fluid bag is formed in the lower portion of the weighing tray 2, and the weighing base 1 is arranged on the lower side of the weighing tray 2 and matched with the weighing tray 2; the fluid bag accommodating groove 20 is an annular groove, the fluid bag is an annular closed liquid bag and is arranged in the fluid bag accommodating groove 20, the weighing tray 2 is of an annular structure and comprises a first central hole 21 arranged in the middle of the weighing tray 2 and the fluid bag accommodating groove 20 arranged on the lower side of the weighing tray 2 and positioned outside the first central hole 21, and the weighing base 1 is of an annular structure and is matched with the fluid bag accommodating groove 20.
Preferably, the device also comprises a tag assembly 4, wherein the tag assembly 4 comprises a mounting ring 40 and a tag mounting part 41 which is arranged at one end of the mounting ring 40 and connected with the mounting ring, and the electronic tag is arranged on the tag mounting part 41 and sleeved between the steel cylinder body 7 of the liquefied petroleum gas steel cylinder and the angle valve 5 through the mounting ring 40; the angle valve 5 includes an operation block 52 provided at a center thereof for mounting/dismounting the angle valve 5; the tag mounting portion 41 is in limit fit with the operation block 52 to limit rotation of the tag assembly 4.
The uninterrupted gas supply system comprises a cloud server end and weighing devices which are configured in one-to-one correspondence for the liquefied petroleum gas cylinders, wherein the cloud server end is connected with the weighing devices through a network, so that the gas quantity of petroleum gas in the liquefied petroleum gas cylinders can be obtained in advance, the uninterrupted gas supply system can be used for preparing goods in advance, and the uninterrupted gas supply under the condition of using the liquefied petroleum gas cylinders can be realized by actively connecting with a user to supply gas to the door. Secondly, the weighing device of the liquefied petroleum gas steel cylinder can bear the pressure of the liquefied petroleum gas steel cylinder for a long time, the pressure sensor detects the pressure signal and transmits the pressure signal to the microprocessor, and the microprocessor calculates the mass of the liquefied petroleum gas steel cylinder according to the pressure signal, so that the continuous and long-time detection of the mass of the liquefied petroleum gas steel cylinder is realized, the service life is long, and the cost is low; particularly, a mode of combining a fluid bag and an air bag is adopted, and an air pressure sensor capable of sensing air pressure change is adopted, so that the weighing machine is more suitable for long-term continuous weighing. And the uninterrupted gas supply system is also provided with an electronic tag, so that the tracking of the whole flow of the gas tank can be realized.
Drawings
FIG. 1 is a schematic diagram of the functional modules of the uninterrupted air supply system of the present invention;
FIG. 2 is a schematic diagram of the continuous weighing apparatus of the LPG cylinder of the present invention in an exploded configuration;
FIG. 3 is a schematic diagram of the structure of section I of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic diagram of the structure of section II of FIG. 2 in accordance with the present invention;
FIG. 5 is a schematic view of the underside of the weighing pallet of the present invention;
FIG. 6 is a schematic view of the structure of the upper side of the weighing pallet of the present invention;
FIG. 7 is a schematic view of the structure of section IV of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the structure of the weighing base of the present invention;
FIG. 9 is a schematic diagram of the structure of section III of FIG. 8 in accordance with the present invention;
FIG. 10 is a schematic diagram of functional modules of a continuous weighing apparatus for LPG cylinders according to the present invention;
FIG. 11 is a schematic view of the configuration of the liquid bladder and bladder of the present invention in combination;
FIG. 12 is a schematic cross-sectional view of the liquid bladder and bladder of the present invention in combination;
FIG. 13 is a schematic view of the assembled structure of the tag assembly and the LPG cylinder of the present invention;
FIG. 14 is a schematic structural view of a label assembly of the present invention;
fig. 15 is a schematic view of the engagement of the tag mounting portion of the tag assembly of the present invention with the operating block of the angle valve.
Detailed Description
Embodiments of the uninterrupted air supply system of the present invention are further described below with reference to the examples shown in fig. 1-13. The uninterrupted air supply system of the present invention is not limited to the description of the following embodiments.
The invention discloses an uninterrupted gas supply system, which comprises a cloud server end and a weighing device connected with the cloud server end in a network way, wherein the weighing device is used for continuously weighing a liquefied petroleum gas steel cylinder in use by a user and transmitting gas quantity information of the corresponding liquefied petroleum gas steel cylinder to the cloud server end; and the cloud server side acquires the gas quantity information of the liquefied petroleum gas steel cylinder, and when the residual gas quantity of the liquefied petroleum gas steel cylinder is smaller than a preset distribution threshold value, distribution is arranged.
According to the uninterrupted gas supply system, the cloud server end is connected with the weighing device through the network, so that the gas quantity of the petroleum gas in the liquefied petroleum gas steel cylinder can be obtained in advance, the stock distribution can be carried out in advance, and uninterrupted gas supply under the condition of using the liquefied petroleum gas steel cylinder is realized.
The gas amount information of the liquefied petroleum gas steel cylinder can be a weight value measured by a current weighing device, and can be the total weight of the liquefied petroleum gas steel cylinder and the liquefied petroleum gas in the steel cylinder, and the cloud server end calculates the gas amount by itself; the weight of the liquefied petroleum gas after the weight of the liquefied petroleum gas steel cylinder is removed by the weighing device can be converted by the weighing device through certain correction and the like. The residual gas quantity of the liquefied petroleum gas cylinder can be contained in the gas quantity information and transmitted to the cloud server end by the weighing device, and can also be calculated by the cloud server end by itself, which belongs to the protection scope of the invention. The distribution threshold can be preset manually, can be dynamically adjusted according to different distances of users, and can be set by the users. The scheduling and delivering can be that a cloud server side automatically generates a delivery order and schedules delivery; the delivery reminding can be sent to the user, and the delivery order is generated to be scheduled and delivered after the user determines the delivery time; the delivery task may be sent to a customer service center, and after confirmation by a customer service person and a user, a delivery order may be generated for scheduling delivery. The cloud server can be a self-built server, or a public cloud server, such as an ali cloud, a messenger cloud and the like, can be adopted.
Further, the weighing device is provided with a weighing device positioning module, the weighing device periodically sends the position information of the weighing device to the cloud server through the weighing device positioning module, and the cloud server determines the distribution address based on the position information provided by the weighing device, so that the air supply efficiency is greatly improved. The weighing device positioning module can be in a GPS positioning mode or a Beidou positioning mode and the like.
Further, the invention also comprises an electronic tag 42 arranged on the liquefied petroleum gas steel cylinder, wherein a unique ID for identifying the corresponding liquefied petroleum gas steel cylinder is recorded for recording life cycle data of the liquefied petroleum gas steel cylinder. Preferably, the tag assembly comprising the electronic tag is sleeved between the steel cylinder body and the angle valve of the liquefied petroleum gas steel cylinder, so that artificial dismantling and damage are avoided. The electronic tag may be a passive chip, without a power supply, for example, supporting NFC reading, although the electronic tag may be another type of tag. In addition, the electronic tag can also be a tag chip or a tag module with positioning, communication and processing functions, and is used for sending other information such as the position of the liquefied petroleum gas steel cylinder to the server.
As shown in fig. 1, one embodiment of the uninterrupted air supply system of the present invention is shown.
The uninterrupted air supply system comprises a cloud server end and a weighing device connected with the cloud server end through a network, wherein the cloud server end comprises:
The user management unit is used for managing information of users, including information of names, telephones, addresses and the like, and providing functions of registration, login and the like of the users; the user can use the mobile phone app through a webpage or a mobile phone app, and can place an air supply order and pay online on line.
The order management unit is used for managing the air supply order, and can comprise user information, required liquefied petroleum gas cylinders, required gas amount information, cost information, distribution information, distributor information and the like, and can pay online or collect cash of the distributor. The order can be generated by the user after logging in and logging in, the order can be generated by calling the user to the customer service center and replacing the user with the order by the customer service personnel, and the order can also be automatically generated by the cloud server according to the gas quantity information of the liquefied petroleum gas steel cylinder transmitted by the weighing device. When the user is supplied with air for the first time, the user is provided with the liquefied petroleum gas steel cylinder and a continuous weighing device of the liquefied petroleum gas steel cylinder, the unique identification of the weighing device and the unique identification of the user are recorded, and a certain deposit or fee can be charged.
The gas quantity monitoring unit is used for receiving the gas quantity information of the liquefied petroleum gas steel cylinders transmitted by the weighing device, and generating a gas supply order based on the gas quantity information of the liquefied petroleum gas steel cylinders, or issuing a task to the customer service center unit, or providing predicted gas supply quantity information for the gas station management unit and the store management unit;
And the customer service center unit is used for recording the requirements of customers by customer service personnel and providing services such as air supply, maintenance, complaints and the like according to the requirements of the users.
And the gas station management unit is used for managing the filling and detection of the liquefied petroleum gas steel cylinders, managing the liquefied petroleum gas steel cylinders and the like. The gas station may use the gas station management unit by way of a web page or a mobile app.
And the store management unit is used for managing the distribution and recovery of the liquefied petroleum gas cylinders in the store, periodically conveying the empty liquefied petroleum gas cylinders to the gas station for filling, distributing the full liquefied petroleum gas cylinders to users according to the issued orders, and recovering the empty liquefied petroleum gas cylinders of the users. The store may use the air station management unit by way of a web page or a mobile app.
The distribution management unit is used for carrying out distribution management on the liquefied petroleum gas steel cylinders, tracking the distribution process and the distribution position, enabling a distributor to use the distribution management unit in a webpage or mobile phone app mode, preferably adopting a mobile phone app mode, positioning the distribution position through a mobile phone, facilitating system tracking of the position of the liquefied petroleum gas steel cylinders, estimating the arrival time, and facilitating user checking of the current distribution position. And the distributor can charge through the distribution management unit.
And the steel cylinder management unit is used for managing life cycle data of the liquefied petroleum gas steel cylinder.
The following describes the application procedure in connection with the uninterrupted air supply system of this embodiment:
Firstly, a user registers through a mobile phone client app or a WeChat applet of an air supply system, and fills corresponding user information including telephones, distribution addresses and the like;
The user places an order for air supply on line for the first time, selects whether the empty liquefied petroleum gas steel cylinders are recovered, and can select whether the online payment is performed. The cloud server selects corresponding stores and distributors to distribute according to the distance between the distribution address of the user and the positions of each store in the air supply order and the inventory of the stores and the distributor information of the stores, a continuous weighing device of the liquefied petroleum gas steel cylinder is provided for the user during the first distribution, the unique identification of the weighing device and the unique identification of the user are recorded, and meanwhile, the empty liquefied petroleum gas steel cylinder at the user is recovered. Preferably, an electronic tag is provided on a full lpg cylinder provided to the user.
When the user uses, the liquefied petroleum gas steel cylinder is placed on the weighing device for a long time, the weighing device regularly weighs the liquefied petroleum gas steel cylinder, and the gas quantity information of the liquefied petroleum gas steel cylinder is transmitted to the cloud server end, the cloud server end obtains the residual gas quantity of the liquefied petroleum gas steel cylinder through the gas quantity information of the liquefied petroleum gas steel cylinder, and when the residual gas quantity of the liquefied petroleum gas steel cylinder is smaller than a preset distribution threshold value, distribution is arranged. Specifically, the air quantity information transmitted by the weighing device comprises a unique identifier of the weighing device, the cloud server side obtains user information of a corresponding user according to the unique identifier of the weighing device, obtains a distribution address of the user, and arranges distribution according to the distribution address of the user and information of each air supply store. The information of each air supply store comprises information such as the distance between the position of each air supply store and the delivery address of the user, the inventory of each air supply store and/or the scheduling of the delivery personnel and the delivery vehicle of each air supply store, and the like, and the corresponding air supply store and the delivery personnel are selected for delivery. Preferably a store that is close in distance, has inventory, and has spare time for the delivery vehicle and the delivery person.
When the distribution mode set by the user is automatic distribution, the cloud server automatically arranges corresponding distribution and reminds the user in a short message or mobile phone APP mode, and no user intervention is needed. Or when the residual gas quantity of the liquefied petroleum gas steel cylinder is smaller than a preset distribution threshold value, the cloud server automatically transmits a corresponding task to the customer service center unit, and customer service personnel and a user communicate to confirm whether distribution is performed or not, and after the distribution time, a gas supply order is generated to schedule distribution. Of course, the user can be reminded, and the user can place an order by himself.
Furthermore, the store management unit is also provided with a route planning module, so that the distribution addresses of a plurality of air supply orders to be distributed on the next day are obtained, the distribution route is automatically arranged, and the distribution efficiency is further improved.
Further, the cloud server side predicts the air supply time of the user according to the air quantity information of the liquefied petroleum gas steel cylinders transmitted by the weighing device at regular intervals to obtain the predicted air supply time so as to guide the stock arrangement of the air station or the store. Specifically, the cloud server calculates the use speed of a corresponding user according to the gas amount information of the liquefied petroleum gas cylinder transmitted by the weighing device at regular intervals, and predicts the gas supply time of the user to obtain the estimated gas supply time; and the estimated air supply time of the user in the distribution area of each store is calculated in a summarizing way to obtain the estimated air supply quantity of each store at each time, and the store inventory is guided to be arranged. The store is instructed to return empty bottles to the gas station in batches, replenishing filled lpg cylinders. Similarly, the cloud server side obtains the predicted air supply time of the corresponding user according to the air quantity information of the liquefied petroleum gas cylinders periodically transmitted by the weighing device, and performs summarization calculation on the predicted air supply time of the user in the distribution area of each air station to obtain the air supply quantity of each air station at each predicted time, so as to guide the inventory of the air station, realize an intelligent uninterrupted air supply system and realize real uninterrupted air supply.
Further, the invention also comprises an electronic tag arranged on the liquefied petroleum gas steel cylinder. Preferably, the tag assembly comprising the electronic tag is sleeved between the steel cylinder body and the angle valve of the liquefied petroleum gas steel cylinder, so that artificial dismantling and damage are avoided. The electronic tags are in one-to-one correspondence with the liquefied petroleum gas cylinders, and the unique IDs for identifying the corresponding liquefied petroleum gas cylinders are recorded for recording life cycle data of the liquefied petroleum gas cylinders. For example, the location and time of a lpg cylinder, whether it is at a gas station, store, distribution station or some user, and time.
Preferably, the electronic tag comprises a tag processor, a tag battery module for supplying power, a tag positioning module, a tag communication module and a tag storage module, wherein the tag positioning module, the tag communication module and the tag storage module are connected with the tag processor. The tag positioning module can be GPS positioning or Beidou positioning; the tag communication module is preferably GPRS. And the electronic tag periodically transmits the position information to a cloud server side, and the cloud server side records the position and time of the corresponding liquefied petroleum gas steel cylinder. When the liquefied petroleum gas steel cylinder and the electronic tag enter the gas station for inflation, the gas station scans the electronic tag or reads the card, the cloud server end and the electronic tag can both store the inflation record of the liquefied petroleum gas steel cylinder, and the scanning or the card reading can be synchronously carried out when the gas scale is inflated. When the liquefied petroleum gas steel cylinder and the electronic tag enter a store, the store scans the electronic tag or reads the card, and the cloud server and the electronic tag can store the position of the liquefied petroleum gas steel cylinder and the record of which store. When the liquefied petroleum gas steel cylinder and the electronic tag are distributed, a code is scanned by a distributor, and the cloud server side and the electronic tag can record the distribution time and the distribution path of the liquefied petroleum gas steel cylinder; when the liquefied petroleum gas steel cylinder and the electronic tag are sent to the user, a dispatcher or the user scans the code or reads the card, and the cloud server side and the electronic tag can store the time of the liquefied petroleum gas steel cylinder sent to the user and the record of the user at which position; when the LPG cylinder and the electronic tag are recovered from the user, the code is scanned or the card is read by the distributor or the user, and the server side and the electronic tag can store the recovered record of the LPG cylinder. Of course, the electronic tag may also be a passive chip, and no power supply is needed, for example, a chip supporting NFC reading, which cannot automatically upload location information periodically, but still can record the location of the electronic tag when the electronic tag scans or reads a code through a card reader of each air station, a store, a mobile phone of a dispatcher, and a mobile phone of a user.
The device is a weighing device capable of continuously weighing the liquefied petroleum gas steel cylinder, the existing common weighing device can naturally weigh the liquefied petroleum gas steel cylinder, and the weighing device has high weighing precision, is high in cost or is not suitable for long-term continuous heavy pressure weighing, and if a heavy object is placed on the weighing device for a long time, elastic deformation of a pressure sensor is irreversible, so that the weighing accuracy is affected. The invention also provides a weighing device suitable for continuously weighing the liquefied petroleum gas steel cylinder, which comprises a weighing seat and a fluid bag arranged on the weighing seat, wherein a pressure sensor and a control circuit board are arranged in the weighing seat, and the control circuit board comprises a microprocessor, and the pressure sensor is connected with the fluid bag and is electrically connected with the microprocessor; the pressure sensor detects the pressure signal and transmits the pressure signal to the microprocessor, and the microprocessor calculates the quality according to the pressure signal.
The continuous weighing device for the liquefied petroleum gas steel cylinder has the advantages that the fluid bag can bear the pressure of the liquefied petroleum gas steel cylinder for a long time, the pressure sensor detects the pressure signal and transmits the pressure signal to the microprocessor, the microprocessor calculates the mass of the liquefied petroleum gas steel cylinder according to the pressure signal, the continuous and long-time detection of the mass of the liquefied petroleum gas steel cylinder is realized, the continuous weighing device is beneficial to real-time monitoring and checking of the gas quantity of petroleum gas in the liquefied petroleum gas steel cylinder by a user, the user does not need to repeatedly move and weigh the liquefied petroleum gas steel cylinder, the use operation of the user is simplified, the device is suitable for long-time continuous weighing, and the cost is low and the use is convenient.
Referring to fig. 2, an embodiment of the continuous weighing device for the lpg cylinder according to the present invention is shown.
As shown in the direction of fig. 2, the continuous weighing device for the liquefied petroleum gas steel cylinder comprises a weighing seat and a fluid bag arranged on the weighing seat, wherein a pressure sensor and a control circuit board are arranged in the weighing seat; the weighing base comprises a weighing base 1 and a weighing tray 2, the control circuit board comprises a microprocessor, a fluid bag containing groove 20 for containing a fluid bag is formed in the lower side of the weighing tray 2, the weighing base 1 and the weighing tray 2 are arranged in parallel, the weighing base 1 is arranged in the lower side of the fluid bag and matched with the weighing tray 2, and the pressure sensor is respectively connected with the fluid bag and the microprocessor; the liquefied petroleum gas steel cylinder is placed on the weighing tray 2, the fluid bag is pressed down by the weighing tray 2, so that the hydraulic pressure in the fluid bag is changed, the pressure sensor detects a pressure signal and transmits the pressure signal to the microprocessor, and the microprocessor calculates the mass of the liquefied petroleum gas steel cylinder according to the pressure signal.
The fluid bag is a liquid bag or a gas bag. Preferably, the fluid cell is a closed liquid cell, in which a liquid is stored, which may be water, preferably with an antifreeze solution, depending on the temperature range of the environment of use. The body of the fluid bag can be made of PVC material or rubber material.
The pressure sensor is arranged in the fluid bag, detects the hydraulic pressure change in the fluid bag in real time and transmits the hydraulic pressure change to the microprocessor; or the pressure sensor is arranged outside the fluid bag and is in contact with the fluid bag, and the hydraulic pressure change in the fluid bag is detected in real time and transmitted to the microprocessor. The pressure sensor converts the pressure signal into an electric signal and transmits the electric signal to the microprocessor, and a signal amplifying circuit, a filter circuit, an analog-to-digital conversion circuit and the like can be arranged between the pressure sensor and the microprocessor.
Preferably, the continuous weighing device of the liquefied petroleum gas steel cylinder has the function of peeling and can directly output the mass of the liquefied petroleum gas in the liquefied petroleum gas steel cylinder.
Another preferred embodiment of the present invention is shown in fig. 11-12. The continuous weighing device of the liquefied petroleum gas steel bottle of the embodiment is basically the same as the general structure of the first embodiment, except that the fluid bag of the embodiment is a closed liquid bag, an air bag in contact connection with the fluid bag is arranged on the outer side of the fluid bag, the pressure sensor is an air pressure sensor capable of sensing air pressure change, the pressure sensor is arranged in the air bag, the pressure of the liquefied petroleum gas steel bottle is born by the liquid bag and is transmitted to the air bag, the air pressure in the air bag changes, and the pressure sensor detects the air pressure change in the air bag and transmits the air pressure change to the microprocessor. Preferably, the liquid bag is far bigger than the air bag, the liquid bag and the air bag are similar to structures of a bicycle tire and a valve core, the liquid bag is of an annular structure and is used for bearing the weight of a liquefied petroleum gas steel bottle, the air bag is similar to the valve core arranged on the liquid bag, but is mutually closed with the liquid bag, the pressure sensor is arranged in the air bag, and the diameter of the air bag can be smaller than 1/2 of the thickness of the liquid bag. The embodiment has the following technical effects: the liquid in the liquid bag is less influenced by the external environment; meanwhile, the isolation between the pressure sensor and the liquid bag is realized through the air bag, and the air pressure sensor capable of sensing air pressure change is adopted, so that the service life of the pressure sensor and the technical requirements on the pressure sensor can be greatly prolonged, and the continuous weighing device for the liquefied petroleum gas steel bottle can be ensured to be suitable for long-term continuous weighing, and the service life is greatly prolonged.
The pressure sensor of the invention adopts a pressure sensor capable of sensing air pressure change. For example, XGZP type piezoresistive pressure sensitive element, XGZP type piezoresistive pressure sensitive element is a pressure sensor suitable for biomedical and automotive electronics fields, and the core part of the pressure sensor is a silicon piezoresistive pressure sensitive chip processed by MEMS technology, and is generally used for electronic sphygmomanometers, respirators, oxygenerators, tire pressure gauges, massagers, massage chairs, air cushions, dust collectors and other devices. The air pressure sensor capable of sensing air pressure change can continuously sense air pressure change, and has long service life, but is not suitable for being used as a scale of a weighing device in practice, because the weighing precision is relatively poor, accurate measurement cannot be realized, and the error can reach hundreds of grams. The weighing device is generally required to have higher precision, so that the air pressure sensor capable of sensing air pressure change is not adopted as a weighing sensor by people in the field, the invention breaks through the prejudice in the technology, and the air pressure sensor which is not high in precision but capable of sensing air pressure change continuously is adopted for the weighing device, so that the problem of continuous weighing of the liquefied petroleum gas cylinder is solved; and because the liquefied petroleum gas cylinder itself is heavy, errors in a certain range are acceptable.
The continuous weighing device for the liquefied petroleum gas steel cylinder and the components thereof are further described below with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 2, the continuous weighing device for the liquefied petroleum gas steel cylinder comprises a weighing tray 2 above, a weighing base 1 arranged on the lower side of the weighing tray 2, an annular fluid bag arranged between the weighing base 1 and the weighing tray 2, and a cover plate 3 arranged on the upper side of the weighing tray 2, wherein the air bag, the pressure sensor and a control circuit board are arranged between the cover plate 3 and the weighing tray 2.
As shown in fig. 5-7, one embodiment of the weighing pallet 2 of the present invention is shown.
The weighing tray 2 is of an annular structure and comprises a first central hole 21 arranged in the middle of the weighing tray 2, a fluid bag containing groove 20 arranged on the lower side of the weighing tray 2 and positioned on the outer side of the first central hole 21, and a plurality of evenly distributed steel bottle fixing support legs 23 arranged on the upper side of the weighing tray 2; the fluid bladder receiving groove 20 is an annular groove, and a second assembly hole 25 is formed in the bottom surface thereof.
Preferably, as shown in fig. 5, a plurality of first clamping holes 26 are provided on the outer sidewall of the fluid bag receiving groove 20.
Preferably, as shown in fig. 5, a plurality of first assembly holes 22 are provided on a sidewall of the first center hole 21.
Preferably, as shown in fig. 6, 5 steel cylinder fixing legs 23 are uniformly distributed on the upper side of the weighing tray 2, and are used for stably supporting the bottle body of the liquefied petroleum gas steel cylinder. Further preferably, as shown in fig. 6, the steel cylinder fixing leg 23 includes a leg main plate 230 and leg reinforcing ribs 231 provided at both sides of the leg main plate 230.
Preferably, as shown in fig. 7, the upper side of the weighing tray 2 is further provided with a plurality of first assembling posts 26, each two first assembling posts 26 are a group, and the plurality of first assembling posts 26 are uniformly distributed on the upper side of the weighing tray 2.
Preferably, as shown in fig. 6, the weighing tray 2 further has a plurality of first ribs 24 on an upper side thereof, and the plurality of first ribs 24 are disposed on a bottom surface of the fluid bladder receiving groove 20.
As shown in fig. 8-9, one embodiment of the weighing base 1of the present invention is shown.
As shown in fig. 8, the weighing base 1 has an annular structure, and is matched with the fluid bag accommodating groove 20, the weighing base 1 comprises a second central hole 12 arranged in the middle of the weighing base 1, a first annular groove 11 arranged on the lower side of the weighing base 1 and sleeved outside the second central hole 12, and a second annular groove 10 arranged on the lower side of the weighing base 1 and sleeved outside the first annular groove 11.
Preferably, as shown in fig. 9, a plurality of first clamping tables 15 are disposed on the outer side of the weighing base 1, the first clamping tables 15 are matched with the first clamping holes 26 of the weighing tray 2, the first clamping tables 15 can move up and down in the first clamping holes 26, and the up and down moving amplitude of the first clamping tables 15 is adapted to the deformation of the fluid bag in the working process.
Preferably, as shown in fig. 9, a plurality of third reinforcing ribs 14 are further disposed on the outer side of the weighing base 1 and on the side wall of the second central hole 12, and a plurality of second reinforcing ribs 13 are disposed on the bottom surfaces of the first annular groove 11 and the second annular groove 10.
As shown in fig. 2 and 3, one embodiment of the cover plate 3 of the present invention is shown.
The cover plate 3 is of an arc-shaped plate structure, one end of the cover plate 3 is provided with a third assembly hole 30, the lower side of the third assembly hole 30 is provided with a first assembly space 34, and the middle of the cover plate 3 is provided with a plurality of ventilation holes 31.
Preferably, as shown in fig. 3, the first fitting space 34 is a square space surrounded by a plurality of first coamings 32 provided on the lower side of the cover plate 3.
Preferably, as shown in fig. 11-12, the fluid bag is a fluid bag 90, one end of the fluid bag 90 is provided with an air bag 91 connected with the fluid bag 90, and the air bag 91 is connected with the fluid bag 90. Preferably, a part of the air bag 91 extends into the liquid bag 90 to better conduct pressure, as shown in fig. 10, one end of the air bag 91 extends into the liquid bag 90, the other end is located outside the liquid bag 90, and the other end passes through the second assembly hole 25 to be connected with the XGZP type piezoresistive pressure sensitive element, and the air bag 90 and the air bag 91 are sealed. The liquid bladder 90 is preferably circular in cross-section, although a square cross-section configuration is also possible in fig. 10.
Preferably, as shown in fig. 12, the air bag 91 is disposed at one end inside the liquid bag 90, and is provided with a spherical pressure collecting portion, wherein the diameter of the spherical pressure collecting portion is greater than the diameter of the other portion of the air bag 91, and the wall thickness of the spherical pressure collecting portion is greater than the wall thickness of the other portion of the air bag 91, so as to be beneficial to fully collecting the pressure change in the liquid bag 90.
Preferably, the liquid bladder 90 and the air bladder 91 are both made of PVC material, having good flexibility and elasticity.
As shown in fig. 10, the control circuit board includes a Microprocessor (MCU), a filter circuit connected to the Microprocessor (MCU), a power supply control circuit, an electric quantity monitoring circuit and a power supply, the power supply control circuit is connected to the pressure sensor to supply power to the pressure sensor, the pressure sensor is connected to the filter circuit, the filter circuit is connected to the Microprocessor (MCU) through an analog-to-digital converter, and the power supply is respectively connected to the power supply control circuit and the Microprocessor (MCU). Preferably, the control circuit board further comprises a communication module, and the Microprocessor (MCU) can send data outwards through the communication module. The communication module can be a Bluetooth module, a WIFI (wireless fidelity), a GPRS (general packet radio service) communication module and the like.
As shown in fig. 11-13, one embodiment of the label assembly 4 of the present invention.
The tag assembly 4 comprises a mounting ring 40 and a tag mounting part 41 arranged at one end of the mounting ring 40 and connected with the mounting ring, the electronic tag 42 is arranged on the tag mounting part 41, the electronic tag is sleeved between a steel cylinder body 7 of a liquefied petroleum gas steel cylinder and the angle valve 5 through the mounting ring 40, the angle valve 5 comprises an operation block 52 arranged at the middle part of the electronic tag and used for mounting/dismounting the angle valve 5, the tag mounting part 41 is in limit fit with the operation block 52, the tag assembly 4 is limited to rotate, and particularly, an air outlet is arranged above the rear end of the operation block 52, and the front end face is in limit fit with the tag mounting part 41.
Preferably, the electronic tag 42 is a passive chip.
Preferably, the mounting ring 40 and the tag mounting portion 41 are integrally die-cast members.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (12)
1. The utility model provides an uninterrupted gas supply system, includes cloud server end, its characterized in that:
The weighing device is connected with the cloud server end in a network and is used for continuously weighing the liquefied petroleum gas steel cylinders in use by the user and transmitting the gas quantity information of the corresponding liquefied petroleum gas steel cylinders to the cloud server end; the cloud server end obtains the residual gas quantity of the liquefied petroleum gas steel cylinder through the gas quantity information of the liquefied petroleum gas steel cylinder, and when the residual gas quantity of the liquefied petroleum gas steel cylinder is smaller than a preset distribution threshold value, distribution is arranged; the weighing device comprises a weighing seat, a fluid bag arranged on the weighing seat, and an air bag arranged outside the fluid bag and in contact connection with the fluid bag, wherein a pressure sensor and a control circuit board are arranged in the weighing seat, the control circuit board comprises a microprocessor, the fluid bag is a liquid bag, the air bag and the liquid bag are mutually sealed, the pressure sensor is connected with the air bag, after the fluid bag receives the pressure of a liquefied petroleum gas steel bottle, the pressure is transmitted to the air bag, the pressure sensor detects the pressure signal of the air bag and transmits the pressure signal to the microprocessor, and the microprocessor calculates the quality according to the pressure signal.
2. The uninterruptible gas supply system of claim 1, wherein: the air quantity information transmitted by the weighing device comprises a unique identifier of the weighing device, the cloud server side obtains user information of a corresponding user according to the unique identifier of the weighing device, obtains a distribution address of the user, and arranges distribution according to the distribution address of the user and information of each air supply store.
3. The uninterruptible gas supply system of claim 1, wherein: the weighing device is provided with a weighing device positioning module, the cloud server terminal determines the distribution address of the user based on the position information provided by the weighing device, and distribution is arranged according to the distribution address of the user and the information of each air supply store.
4. A non-interruptive gas supply system as claimed in claim 2 or 3, wherein: the information of each air supply store comprises the distance between the position of each air supply store and the distribution address of the user and/or the stock of each air supply store and/or the scheduling information of the distribution staff and the distribution vehicle of each air supply store.
5. The uninterruptible gas supply system of claim 1, wherein: the cloud server side predicts the air supply time of the user according to the air quantity information of the liquefied petroleum gas steel cylinders transmitted by the weighing device at regular intervals to obtain the expected air supply time so as to guide the stock arrangement of an air station or a store.
6. The uninterruptible gas supply system of claim 5, wherein: the cloud server calculates the use speed of the corresponding user according to the gas quantity information of the liquefied petroleum gas cylinder transmitted by the weighing device at regular intervals, and calculates to obtain the estimated gas supply time; and the cloud server side performs summarized calculation on the predicted air supply time of the user in the air station or store distribution area to obtain the air supply quantity of each store at each predicted time so as to guide the arrangement of store inventory.
7. The uninterruptible gas supply system of claim 1, wherein: the system also comprises an electronic tag arranged on the liquefied petroleum gas steel cylinder, wherein the electronic tag records a unique ID (identity) for identifying the corresponding liquefied petroleum gas steel cylinder.
8. The uninterruptible gas supply system of claim 7, wherein: the electronic tag comprises a tag processor, a tag battery module for supplying power, a tag positioning module, a tag communication module and a tag storage module, wherein the tag positioning module, the tag communication module and the tag storage module are connected with the tag processor; and the electronic tag periodically transmits the position information to the cloud server.
9. The uninterruptible gas supply system of claim 7, wherein: the electronic tag is a passive chip, and the mobile phone or the card reader uploads the position information of the electronic tag to the cloud server during code scanning or card reading.
10. The uninterruptible gas supply system of claim 1, wherein:
the weighing seat comprises a weighing base (1) and a weighing tray (2), a fluid bag containing groove (20) for containing a fluid bag is formed in the lower portion of the weighing tray (2), and the weighing base (1) is arranged on the lower side of the weighing tray (2) and matched with the weighing tray (2); the fluid bag storage groove (20) is an annular groove, the fluid bag is an annular closed liquid bag and is arranged in the fluid bag storage groove (20), the weighing tray (2) is of an annular structure, the weighing tray comprises a first central hole (21) arranged in the middle of the weighing tray (2), and the fluid bag storage groove (20) arranged on the lower side of the weighing tray (2) and located outside the first central hole (21), and the weighing base (1) is of an annular structure and is matched with the fluid bag storage groove (20).
11. The uninterruptible gas supply system of claim 7, wherein: the electronic tag is arranged on the tag mounting part (41) and sleeved between a steel cylinder body (7) and an angle valve (5) of the liquefied petroleum gas steel cylinder through the mounting ring (40); the angle valve (5) includes an operation block (52) provided in a middle portion thereof for mounting/dismounting the angle valve (5); the label mounting part (41) is in limit fit with the operation block (52) to limit the rotation of the label assembly (4).
12. The uninterruptible gas supply system of claim 1, wherein: the fluid bag is a liquid bag (90), one end of the air bag (91) extends into the liquid bag (90), and the other end of the air bag is positioned outside the liquid bag (90); the liquid bag (90) and the air bag (91) are closed; the pressure sensor is disposed within the bladder (91).
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| CN201810933442.XA CN109027673B (en) | 2018-08-15 | 2018-08-15 | Uninterrupted air supply system |
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| CN201810933442.XA CN109027673B (en) | 2018-08-15 | 2018-08-15 | Uninterrupted air supply system |
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| CN109027673B true CN109027673B (en) | 2024-04-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111561660B (en) * | 2019-02-14 | 2024-07-16 | 中电智慧信息科技发展（北京）有限公司 | Continuous gas supply system for bottled liquefied petroleum gas |
| CN111120852A (en) * | 2020-01-19 | 2020-05-08 | 王广武 | Combined device of hydrogen storage bottle with hydrogen storage material inside and use method thereof |
| CN113790396A (en) * | 2021-08-03 | 2021-12-14 | 北京市公用工程设计监理有限公司 | Remote monitoring system and method for gas supply of LPG gasification pry |
| CN113642693A (en) * | 2021-09-10 | 2021-11-12 | 浙江钧普科技股份有限公司 | An NFC tag system installed on the mouth of a liquefied gas cylinder |
| CN116182074A (en) * | 2022-12-16 | 2023-05-30 | 北京市公用事业科学研究所 | Positioner for liquefied gas steel cylinder |
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