CN210197784U - Heat exchange system and air conditioner - Google Patents
Heat exchange system and air conditioner Download PDFInfo
- Publication number
- CN210197784U CN210197784U CN201920812824.7U CN201920812824U CN210197784U CN 210197784 U CN210197784 U CN 210197784U CN 201920812824 U CN201920812824 U CN 201920812824U CN 210197784 U CN210197784 U CN 210197784U
- Authority
- CN
- China
- Prior art keywords
- compressor
- heat exchange
- exchange system
- expansion valve
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a heat exchange system, which comprises a compressor, a condenser, a liquid storage device, an electronic expansion valve and an evaporator which are connected in sequence by using pipelines, and the heat exchange system also comprises an electronic controller, a first temperature sensor, a first pressure sensor and an early warning sensor arranged on an exhaust pipeline; the first temperature sensor and the first pressure sensor are respectively used for measuring the pressure and the temperature of a compressor suction pipeline, and the early warning device is used for measuring an abnormal signal of a compressor exhaust pipeline; the compressor, the electronic expansion valve, the evaporator, the first temperature sensor, the first pressure sensor and the early warning device are electrically connected with the electronic controller, and the compressor and the electronic expansion valve are controlled by the electronic controller. The early warning device is used for measuring abnormal signals of the exhaust pipeline, such as overhigh temperature and/or pressure, so that all parts of the heat exchange system are protected, the service life is prolonged, and dangers are reduced.
Description
Technical Field
The utility model relates to an air conditioner technical field especially relates to a heat exchange system and air conditioner.
Background
The temperature control is a very wide application requirement, and the realization principle is that a heat exchange system is used, the temperature deviation of a controlled point is actually measured, and the appropriate heating or refrigerating capacity (the refrigerating capacity can be regarded as the heating quantity of a negative number) is dynamically calculated and output, so that the ambient heat load of the controlled point is just offset, and the temperature deviation of the controlled point is further eliminated. The specific control algorithm is various, and the PID algorithm is most widely applied, so that the accurate constant control of the temperature can be realized.
However, conventional refrigeration equipment represented by a thermostatic expansion valve has no capability of adjusting the cooling capacity at all. Therefore, in the application of accurate temperature control by adopting a PID algorithm, a thermal compensation mode is generally adopted, specifically, the refrigeration equipment is operated in full load, and meanwhile, the PID is used for controlling the output heat of the electric heater to offset redundant cold. Obviously, the mode can generate a large amount of useless energy consumption, the energy conservation performance is poor, and on the other hand, the refrigeration equipment is always in full-load operation, the fatigue degree is high, and the service life and the reliability are influenced.
The application capacities of variable capacity compressors and electronic expansion valves have appeared to be increasing in recent years, but since many people mistakenly equate the discharge capacity of a compressor simply to the cooling capacity, or even if it is recognized that the adjustment of the cooling capacity is critical to the expansion valve, there is a lack of proper control coordination of the variable capacity compressor, it is not always possible to stably adjust the output of the actual cooling capacity. In addition, even if the refrigerating capacity is successfully reduced, the working condition of the compressor is always balanced by adopting a hot gas bypass mode, so that the overall energy consumption is not fully reduced, and meanwhile, the stability of refrigerating capacity adjustment is greatly influenced due to the instability of the hot gas bypass.
Unlike a purely mechanical thermostatic expansion valve, an electronic expansion valve is an electric regulating valve driven by a stepping motor, and the opening degree of the electronic expansion valve can be randomly specified by a processor in an electronic product, which brings great flexibility and more possibilities for a dynamic operation control means of a refrigeration system.
Therefore, there is a need in the art for a heat exchange system and an air conditioner capable of adjusting actual cooling/heating amount more accurately and stably, so that the overall energy consumption is sufficiently reduced, the stability of cooling/heating amount adjustment is improved, and the service life of each component of the heat exchange system is prolonged.
In view of this, the present invention is proposed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses an aim at provides a heat exchange system and air conditioner.
The utility model provides a heat exchange system, which comprises a compressor, a condenser, a liquid storage device, an electronic expansion valve and an evaporator which are connected in sequence by using pipelines, and the heat exchange system also comprises an electronic controller, a first temperature sensor, a first pressure sensor and an early warning sensor arranged on an exhaust pipeline; the first temperature sensor and the first pressure sensor are respectively used for measuring the pressure and the temperature of a compressor suction pipeline, and the early warning device is used for measuring an abnormal signal of a compressor exhaust pipeline; the compressor, the electronic expansion valve, the evaporator, the first temperature sensor, the first pressure sensor and the early warning device are electrically connected with the electronic controller, and the compressor and the electronic expansion valve are controlled by the electronic controller.
By adopting the scheme, the electronic expansion valve is used as the cut-off device, and the electronic controller can rapidly and accurately change the refrigerating capacity or the heating capacity output by the heat exchange system by controlling the opening degree of the electronic controller. The electronic controller can be a circuit board containing a single chip microcomputer, or a Programmable Logic Controller (PLC), or other types of computers. The electronic controller reads the data sensed by each sensor, and automatically controls the opening of the electronic control valve and the exhaust capacity of the compressor by using internal logic, so as to realize the accurate control of refrigeration/heat. The condenser releases heat, can be used for indoor heating, and can also be an outdoor unit; the evaporator absorbs heat and can be used for indoor refrigeration or an outdoor unit, and the heat exchange system can meet the refrigeration and/or heating functions. The first temperature sensor and the first pressure sensor are used for measuring the temperature and the pressure of the air suction pipeline so as to calculate the refrigerating capacity; the early warning device is used for measuring abnormal signals of the exhaust pipeline, such as overhigh temperature and/or pressure, so that all parts of the heat exchange system are protected, the service life is prolonged, and dangers are reduced.
Further, the heat exchange system also comprises an oil separator, and the oil separator is respectively connected with the compressor and the condenser through pipelines.
By adopting the scheme, the lubricating oil is separated from the gas after the high-pressure gas from the compressor enters the oil separator, the separated lubricating oil is concentrated at the lower part of the oil separator and can be discharged periodically, or the lubricating oil is automatically returned to the compressor by utilizing the ball float valve.
Further, the early warning device comprises a second temperature sensor or a second pressure sensor.
Preferably, the early warning device comprises a second temperature sensor and a second pressure sensor.
By adopting the scheme, the second temperature sensor is used for measuring the temperature of the exhaust pipeline, the second pressure sensor is used for measuring the pressure of the exhaust pipeline, monitoring the abnormal pressure and temperature of the exhaust pipeline, and adjusting the electronic expansion valve and the compressor in time according to the pressure/temperature of the exhaust pipeline, so that the refrigeration/heating process is normally and stably carried out.
Preferably, the compressor adopts one or more of a variable frequency compressor, a digital scroll compressor and a multi-parallel compressor.
By adopting the scheme, the discharge capacity of the compressor is changed by changing the frequency of the variable frequency compressor, and the discharge capacity is smaller when the frequency is lower; the digital scroll compressor changes the exhaust capacity of the compressor by changing the duty ratio of loading/unloading, and the smaller the loading proportion is, the smaller the exhaust capacity is; the multi-parallel compressor changes the exhaust capacity of the compressor by changing the number of the parallel compressors, and the exhaust capacity is smaller when the number is smaller; the compressor is adopted, so that the electronic controller can automatically control the exhaust capacity of the compressor, and the exhaust capacity is matched with the refrigerating capacity of the electronic expansion valve, and the refrigerating capacity and the heating capacity are controlled more accurately.
Furthermore, a PID controller is arranged in the electronic controller.
By adopting the scheme, the refrigeration/heating quantity is calculated by adopting a PID algorithm, so that the temperature is regulated more stably.
Based on foretell heat exchange system, the utility model also provides an air conditioner, this air conditioner include as above heat exchange system, because foretell heat exchange system has foretell technological effect, the air conditioner that has this heat exchange system also should have corresponding technological effect.
The control method of the heat exchange system includes the steps of:
A. inputting a set temperature;
B. calculating the refrigerating capacity K% according to the set temperature and the actually measured temperature;
C. and regulating the actual opening degree of the electronic expansion valve to K% with the set maximum opening degree limit value of the electronic expansion valve as 100%.
By adopting the scheme, the opening of the electronic expansion valve is directly adjusted according to the refrigeration percentage, so that the refrigeration capacity is more accurately and timely adjusted, and the electronic expansion valve is matched with the compressor, so that the refrigeration process is more stable. The method for calculating the refrigerating capacity is selected according to the actual situation: the method comprises the following steps: an industry-recognized PID algorithm; the second method comprises the following steps: a table look-up method in which the temperature difference corresponds to the refrigerating capacity one by one; the third method comprises the following steps: calculating refrigerating capacity Q ═ cm (T-T ') by using a thermodynamic calculation formula, wherein c is the specific heat capacity of the refrigerating medium, m is the mass of the refrigerating medium, T is the measured temperature, and T' is the set temperature; the method four comprises the following steps: the successive approximation method checks the temperature difference at intervals, and adds a small amount of refrigerating capacity successively until the set temperature is met. The medium in the heat exchange system may be water or a refrigerant commonly used in air conditioners.
Further, the control method further comprises the following steps:
D. and calculating the superheat degree according to the pressure and the temperature measured at the position of the air suction pipeline of the compressor, and adjusting the loading proportion of the compressor according to the superheat degree.
By adopting the scheme, the refrigeration capacity is controlled by the electronic expansion valve and the compressor, the temperature is regulated more stably by utilizing the compressor to be matched with the electronic expansion valve, the large-range floating of the preset temperature is prevented, the control method has an excellent effect on accurately regulating the refrigeration capacity, particularly, the workload of all electromechanical equipment is correspondingly reduced while the output of the refrigeration capacity is reduced, the energy consumption is greatly reduced, the energy efficiency ratio is improved, and the overall reliability and the service life of the system are greatly improved.
Further, the step C comprises the following steps:
c1, judging whether the maximum refrigerating capacity of the electronic expansion valve is less than or equal to the maximum refrigerating capacity of the compressor:
c2, if yes, adjusting the opening ratio of the electronic expansion valve according to the refrigerating capacity percentage K%;
and C3, if not, limiting the maximum opening limit value of the electronic valve to make the maximum cooling capacity of the electronic expansion valve equal to the maximum cooling capacity of the compressor.
By adopting the scheme, when the maximum refrigerating capacity of the electronic expansion valve is larger than the maximum refrigerating capacity of the compressor, and the compressor is matched with the electronic expansion valve, the exhaust capacity of the compressor cannot keep up with the opening degree of the electronic expansion valve, so that the refrigerating capacity is not adjusted stably, the limit value of the maximum opening degree of the electronic valve is limited, and the refrigerating capacity can be adjusted more stably.
Further, the step D comprises the following steps:
d1, measuring the temperature T1 and the pressure P1 of an air suction pipeline of the compressor, obtaining the saturation temperature T0 of the refrigerant under the pressure P1 by using a table look-up method, and calculating the superheat degree delta T-T1-T0;
d2, judging whether the superheat degree delta T is within a preset optimal range Ta to Tb (Ta < Tb):
d3, if not, judging whether the delta T is larger than Tb:
d4, if yes, reducing the loading proportion of the compressor;
d5, if not, increasing the loading ratio of the compressor.
By adopting the scheme, if the suction gas has no overheating degree at all, namely delta T is 0, return gas and liquid can be generated, and even wet stroke liquid impact can be caused to damage the compressor; the high superheat degree can cause the exhaust temperature of the compressor to rise, the running condition of the compressor is deteriorated, and the service life is reduced; the optimal range of the superheat degree is that delta T is more than or equal to 5 ℃ and less than or equal to 6 ℃, namely Ta is 5 ℃ and Tb is 6 ℃, the required refrigerating capacity is ensured to be realized, the compressor is enabled to pay the least energy consumption, and meanwhile, the pressure ratio of the compressor can be reduced to the greatest extent, so that the compressor works in the easiest state.
Further, the control method further comprises the following steps:
E. the exhaust capacity of the compressor is adjusted according to the exhaust temperature or the exhaust pressure, and the maximum opening limit value of the electronic expansion valve is reversely adjusted according to the superheat degree.
By adopting the scheme, the protection of the compressor is realized by detecting the exhaust temperature and/or the exhaust pressure, the energy consumption is reduced, the refrigeration/heating process is more stable, and the heat exchange system is safely protected for preventing the abnormality of system equipment and the environmental deterioration.
Further, the step E includes the steps of:
e1, judging whether the exhaust temperature T2 or the exhaust pressure P2 is higher than the early warning value:
e2, if yes, reducing the exhaust capacity of the compressor; judging whether the delta T is smaller than Ta: if so, reducing the maximum opening limit value of the expansion valve;
e3, if not, judging whether the delta T is larger than Tb: and if so, recovering the maximum opening limit value of the electronic expansion valve.
By adopting the scheme, when the exhaust capacity of the compressor is reduced in the step E2, the condition that the superheat degree delta T of the compressor is too low easily occurs, at the moment, the electronic expansion valve is reversely controlled, and the superheat degree delta T is in a preset optimal range by reducing the opening degree of the electronic expansion valve; when the exhaust temperature and the exhaust pressure are lower than the early warning values, the condition of overhigh superheat degree delta T is easy to occur, the maximum opening limit of the electronic expansion valve is replied at the moment, and the superheat degree delta T is in the preset optimal range, so that the stable operation of the refrigeration/heating process is ensured, the heat exchange system is safely protected, and the heat exchange system is used for preventing system equipment abnormality and environmental deterioration.
To sum up, the utility model discloses following beneficial effect has:
1. the opening degree of the electronic expansion valve is directly adjusted according to the refrigeration percentage, so that the refrigeration capacity is adjusted more accurately and timely, the electronic expansion valve is matched with the compressor, and the refrigeration process is more stable;
2. the data sensed by the first temperature sensor and the first pressure sensor are read by the electronic controller, and the opening of the electronic control valve and the exhaust capacity of the compressor are automatically controlled by utilizing internal logic, so that the refrigerating/heating process is more stable and accurate;
3. the control method has an excellent effect on accurately adjusting the refrigerating output, particularly, the workload of all electromechanical equipment is correspondingly reduced while the refrigerating output is reduced, so that the energy consumption is greatly reduced, the energy efficiency ratio is improved, and the overall reliability and the service life of the system are greatly improved;
4. through the arrangement of the second temperature sensor and the second pressure sensor, when the exhaust capacity of the compressor is maximum or the exhaust temperature/pressure is too high and the exhaust capacity of the compressor needs to be reduced, the electronic expansion valve is reversely matched with the compressor, so that the superheat degree delta T is equal to the preset optimal preset value T3, the compressor is protected, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of the heat exchange system of the present invention.
Description of the reference numerals
Through the above reference sign explanation, combine the embodiment of the utility model, can more clearly understand and explain the technical scheme of the utility model.
1. A compressor; 2. an oil separator; 3. a condenser; 4. a reservoir; 5. an electronic expansion valve; 6. an evaporator; 7. an electronic controller; 8. a first temperature sensor; 9. a first pressure sensor; 10. a second temperature sensor; 11. a second pressure sensor; 101. a pipeline; 102. an air intake duct; 103. an exhaust duct.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The present invention will be described in detail below by way of examples.
Example one
Referring to fig. 1, the present invention provides a heat exchange system, which comprises a compressor 1, a condenser 3, a liquid reservoir 4, an electronic expansion valve 5, and an evaporator 6, which are sequentially connected by a pipeline 101, wherein the heat exchange system further comprises an electronic controller 7, a first temperature sensor 8, a first pressure sensor 9, and an early warning sensor disposed on an exhaust pipeline 103; the first temperature sensor 8 and the first pressure sensor 9 are respectively used for measuring the pressure and the temperature of the air suction pipeline 102 of the compressor 1, and the early warning device is used for measuring an abnormal signal of the air discharge pipeline 103 of the compressor 1; the compressor 1, the electronic expansion valve 5, the evaporator 6, the first temperature sensor 8, the first pressure sensor 9 and the early warning device are electrically connected with the electronic controller 7, and the compressor 1 and the electronic expansion valve 5 are controlled by the electronic controller 7.
By adopting the scheme, the electronic expansion valve 5 is used as a cut-off device, and the electronic controller 7 can rapidly and accurately change the refrigerating capacity or the heating capacity output by the heat exchange system by controlling the opening degree of the electronic controller. The electronic controller 7 can be a circuit board with a single chip microcomputer, or a Programmable Logic Controller (PLC), or other types of computers. The electronic controller 7 reads data sensed by the sensors, and automatically controls the opening of the electronic control valve and the exhaust capacity of the compressor 1 by using internal logic, thereby realizing accurate control of refrigeration/heat. The condenser 3 releases heat, and can be used for indoor heating or an outdoor machine; the evaporator 6 absorbs heat and can be used for indoor cooling or outdoor cooling, and the heat exchange system can meet the cooling and/or heating functions. The first temperature sensor 8 and the first pressure sensor 9 are used for measuring the temperature and the pressure of the air suction pipeline 102 so as to calculate the refrigerating capacity; the early warning device is used for measuring abnormal signals of the exhaust pipe 103, such as excessive temperature and/or pressure, so as to protect components of the heat exchange system, prolong the service life and reduce danger.
In a preferred embodiment of the present invention, the heat exchange system further comprises an oil separator 2, and the oil separator 2 is connected to the compressor 1 and the condenser 3 through a pipe 101.
By adopting the scheme, the lubricating oil is separated from the gas after the high-pressure gas from the compressor 1 enters the oil separator 2, and the separated lubricating oil is concentrated at the lower part of the oil separator 2 and can be discharged periodically, or the lubricating oil is automatically returned to the compressor 1 by utilizing a ball float valve.
In a preferred embodiment of the present invention, the early warning device includes a second temperature sensor 10 or a second pressure sensor 11.
In a preferred embodiment of the present invention, the early warning device includes a second temperature sensor 10 and a second pressure sensor 11.
By adopting the above scheme, the second temperature sensor 10 is used for measuring the temperature of the exhaust pipeline 103, the second pressure sensor 11 is used for measuring the pressure of the exhaust pipeline 103, monitoring the abnormal pressure and temperature of the exhaust pipeline 103, and adjusting the electronic expansion valve 5 and the compressor 1 in time according to the pressure/temperature of the exhaust pipeline 103, so that the cooling/heating process is normally and stably carried out.
In a preferred embodiment of the present invention, the compressor 1 is one or more of a variable frequency compressor, a digital scroll compressor, and a multi-parallel compressor.
By adopting the scheme, the discharge capacity of the compressor 1 is changed by changing the frequency of the variable frequency compressor, and the discharge capacity is smaller when the frequency is lower; the digital scroll compressor changes the exhaust capacity of the compressor 1 by changing the duty ratio of loading/unloading, and the smaller the loading proportion is, the smaller the exhaust capacity is; the multi-parallel compressor changes the exhaust capacity of the compressor 1 by changing the number of parallel compressors, and the exhaust capacity is smaller when the number is smaller; by adopting the compressor 1, the electronic controller 7 can automatically control the exhaust capacity of the compressor 1, and further the exhaust capacity is matched with the refrigerating capacity of the electronic expansion valve 5, so that the refrigerating capacity and the heating capacity can be controlled more accurately.
In a preferred embodiment of the present invention, the electronic controller 7 is internally provided with a PID controller.
By adopting the scheme, the refrigeration/heating quantity is calculated by adopting a PID algorithm, so that the temperature is regulated more stably.
Example two
Based on foretell heat exchange system, the utility model also provides an air conditioner, this air conditioner include as above heat exchange system, because foretell heat exchange system has foretell technological effect, the air conditioner that has this heat exchange system also should have corresponding technological effect.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall into the protection scope of the claims of the present invention.
Claims (10)
1. A heat exchange system comprises a compressor (1), a condenser (3), a liquid storage device (4), an electronic expansion valve (5) and an evaporator (6) which are sequentially connected by a pipeline (101), and is characterized in that: the heat exchange system further comprises an electronic controller (7), a first temperature sensor (8), a first pressure sensor (9) and a pre-warning device arranged on the exhaust pipeline (103); the first temperature sensor (8) and the first pressure sensor (9) are respectively used for measuring the pressure and the temperature of an air suction pipeline (102) of the compressor (1), and the early warning device is used for measuring an abnormal signal of an exhaust pipeline of the compressor (1); the air conditioner is characterized in that the air conditioner comprises a compressor (1), an electronic expansion valve (5), an evaporator (6), a first temperature sensor (8), a first pressure sensor (9) and an early warning device, wherein the early warning device is electrically connected with an electronic controller (7), and the compressor (1) and the electronic expansion valve (5) are controlled by the electronic controller (7).
2. The heat exchange system of claim 1, wherein: the heat exchange system further comprises an oil separator (2), and the oil separator (2) is respectively connected with the compressor (1) and the condenser (3) through a pipeline (101).
3. The heat exchange system according to claim 1 or 2, wherein: the early warning device comprises a second temperature sensor (10) or a second pressure sensor (11).
4. The heat exchange system of claim 3, wherein: the early warning device comprises a second temperature sensor (10) and a second pressure sensor (11).
5. The heat exchange system according to claim 1 or 2, wherein: the compressor (1) adopts one or more of a variable frequency compressor, a digital scroll compressor and a plurality of parallel compressors.
6. The heat exchange system of claim 4, wherein: the compressor (1) adopts one or more of a variable frequency compressor, a digital scroll compressor and a plurality of parallel compressors.
7. The heat exchange system according to claim 1 or 2, wherein: and a PID controller is arranged in the electronic controller (7).
8. The heat exchange system of claim 4, wherein: and a PID controller is arranged in the electronic controller (7).
9. The heat exchange system of claim 5, wherein: and a PID controller is arranged in the electronic controller (7).
10. An air conditioner, characterized in that: the air conditioner comprising a heat exchange system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812824.7U CN210197784U (en) | 2019-05-31 | 2019-05-31 | Heat exchange system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812824.7U CN210197784U (en) | 2019-05-31 | 2019-05-31 | Heat exchange system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210197784U true CN210197784U (en) | 2020-03-27 |
Family
ID=69873752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920812824.7U Active CN210197784U (en) | 2019-05-31 | 2019-05-31 | Heat exchange system and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210197784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195920A (en) * | 2019-05-31 | 2019-09-03 | 北京创意信通科技有限责任公司 | A kind of heat-exchange system and its control method and air conditioner |
-
2019
- 2019-05-31 CN CN201920812824.7U patent/CN210197784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195920A (en) * | 2019-05-31 | 2019-09-03 | 北京创意信通科技有限责任公司 | A kind of heat-exchange system and its control method and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2212804C (en) | Feed forward control of expansion valve | |
| US5284026A (en) | Control system for an air conditioning/refrigeration system | |
| US5950443A (en) | Compressor minimum capacity control | |
| CA2326619C (en) | Device and method for cool-drying | |
| CN101646911B (en) | Optimization of air cooled chiller system operation | |
| KR101513768B1 (en) | Air conditioning apparatus | |
| EP1379817B1 (en) | Method and apparatus for controlling the removal of heat from the condenser in a refrigeration system | |
| US10837685B2 (en) | HVAC refrigerant charging and relieving systems and methods | |
| CN110906477B (en) | Efficient and stable magnetic suspension water chilling unit, control method and device | |
| KR930005662B1 (en) | Air conditioner | |
| CN110195920A (en) | A kind of heat-exchange system and its control method and air conditioner | |
| CN115355637B (en) | Control method and device for multi-chamber electronic expansion valve of refrigeration system and refrigeration system | |
| CN115614910A (en) | Refrigerant bias flow processing method and device and modular air conditioning unit | |
| CN210197784U (en) | Heat exchange system and air conditioner | |
| JP2004353916A (en) | Temperature control method and air conditioner | |
| CN105299940A (en) | Refrigeration system of frequency-conversion scroll compressors for refrigeration container and control method for refrigeration system | |
| CN118168119A (en) | Air conditioner constant temperature control method and air conditioner unit | |
| JPH076651U (en) | Heat pump system controller | |
| US20240353142A1 (en) | Adjustable working fluid reservoir for hvac system | |
| CN101644502B (en) | Refrigerating circuit and method for operating same | |
| JPS62116861A (en) | Air conditioner | |
| CN114576876A (en) | Multi-load variable-frequency refrigeration system and control method | |
| CN118076069A (en) | Multi-modular fluorine pump air conditioning system of data center and control method | |
| CN120830948A (en) | Compressor system and control method thereof, controller, storage medium and program product | |
| IL114806A (en) | Method and system for controlling a refrigeration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |