WO2014081335A1 - Mobile apparatus for controlling oil product loading - Google Patents

Abstract

The present invention relates to devices intended for controlling and checking devices for loading oil products, and can be used in the oil-refining and chemical industry and in depots, oil bases, liquid bulk terminals and airports which store oil products and distribute them to consumers. A device is mounted on an automobile trailer 1, which is transported to the operating site using a vehicle. The trailer has mounted thereon, with the aid of guide pegs 3 and 4, an outer frame 5 and an inner frame 6. A standard metal measuring tank 2 is secured to the inner frame. Two types of loading are provided for in measuring tank 2: top and bottom. Top loading is carried out via a measuring tank manhole, and bottom loading is carried out via flange connections for a loading tube. Four jacks 7 and strain force gauges 8 are attached to the outer frame. The following components are mounted on outer frame 5: a platform with stairs 9 for servicing measuring tank 2, a power box 10, a thermometer box 11, a weight controller box 12, a pump 13 and a hose with a sight glass 14. The present invention ensures safe loading of oil products, more accurate measurements of the quantity of oil products delivered by the top and bottom loading systems, and efficient use of the present apparatus, owing to the fact that said apparatus can quickly be transported to different monitoring sites.

Description

 Mobile control unit for loading oil products

 Technical field

The invention relates to devices designed to control and verify oil product loading devices, and can be used in the oil refining and chemical industries, in warehouses, oil depots, loading terminals, airports that store oil products and distribute them to consumers.

State of the art

A known technology for automated accounting of the mass of petroleum products (NP) in fuel depots in vertical and horizontal tanks when they are dispensed to consumers includes steps in which the filling height of the oil is calculated using a measuring device and the volume of oil is determined on the basis of the calibration tables of the tank in the tank, using a computer, calculate the mass of the released NP based on the obtained values of the volume and the values obtained from the temperature and density sensors installed in the tanks, characterized in that and with the help of a computer, the weight of the supplied NP is calculated based on the values obtained from the temperature and volume sensors installed on the fuel - and oil dispensers (dispensers), and the density sensor installed in the line supplying fuel from the tanks to the dispensers, and the received the values of the flow rate of the NP in the tank and on the fuel dispenser, as a result of the comparison, a comparative error of the flow of NP in the tanks is obtained, see patent RU 2377505

A known system for loading petroleum products containing a vertical rack, a rotary pipe, a loading pipe on which a limit level sensor and a drip tray are mounted, a counterweight, characterized in that it is equipped with a hydraulic cylinder with a bracket mated to an axis mounted on a vertical column, hydraulic cylinder control unit, swivel pipe lever with an axis mated to the hydraulic cylinder rod, swivel pipe inclination sensor, ground circuit control unit, electrostatic charge arrestor, remote control control and liquid meter, see patent RU 2258668. A device for accounting for petroleum products is known, comprising a central unit with software for generating tasks for performing technological operations for the reception, storage and dispensing of petroleum products, connected to a display unit, a printing unit and a communication unit, a control and information processing unit with removal software information and the issuance of control actions on the technological equipment of the zones of reception, storage and dispensing of petroleum products, connected to the display unit and cash register with a function of the fiscal registrar, the control and information processing unit via interface lines is connected to the controllers of the zones for receiving, storing and dispensing oil products, which are connected through the interface modules to measuring and executing commands of the zones for receiving, storing and dispensing oil products, the central unit and the control and information processing unit are combined into a local network, the communication unit via a radio channel is connected to the upper level of the automated control system, including geographically remote ekty see. PA-tilt RU 2234730.

 A common drawback of all known means for monitoring and verifying oil product loading devices is their stationarity and insufficient accuracy of measuring the amount of oil products dispensed under the upper and lower loading modes, due to the inability to directly compare the amount of oil products dispensed by the fuel dispenser in terms of volume and weight while measuring the temperature of petroleum products. Disclosure of invention

 The objective of the invention is to increase the efficiency of using the installation for monitoring the loading of petroleum products by ensuring the possibility of its mobile operational movement to various controlled objects, as well as improving the accuracy of measuring the quantity of petroleum products dispensed under the upper and lower loading modes,

A mobile installation for monitoring the loading of petroleum products, including measuring and control means, is characterized in that the measuring and control means are made in the form of a standard metal measuring device, providing for upper and lower loading, a temperature measuring unit, equipped with with a breathing valve and a vapor recovery valve, sight lamps mounted on an internal frame attached to a car trailer, while an external frame equipped with jacks fixed to it and tensile sensors, which are connected through an interface module, are mounted on a car trailer with weight controller.

 The applicant has not identified sources containing information on technical solutions, the combination of features of which coincide with the combination of distinctive features of the invention, which allows us to conclude that the invention meets the condition of "novelty" (N).

 The technical result achieved by implementing the set of essential features of the invention consists in expanding the functionality of the installation by increasing the class of simultaneously solved problems of increasing the accuracy of taking into account the mass and volume of dispensed petroleum products when they are dispensed to consumers by implementing the method of direct comparison of the amount of dispensed petroleum products by a fuel dispenser Coy: in volume - with an exemplary measurer of class 0.05; by weight - with a weight controller with a mass measurement error of not more than 0.05% while measuring the temperature of oil products by the height of a standard measuring device.

 This technical result is not a consequence of the well-known properties that are shown separately by the signs well-known from other objects of technology, such as exemplary measuring devices, weight controllers, but is a property of all the essential features claimed in the independent claim.

 This allows you to recognize the claimed technical solution in accordance with the condition of "inventive step" (IS).

The best use of the invention

 The invention is illustrated by drawings, where in FIG. 1 shows a General view of the claimed installation, figure 2 is a side view, figure 3 is a section aa in figure 2, figure 4 is a top view.

In the drawings, the positions indicated: 1 - car trailer, 2 - exemplary measurer, 3, 4 - guide pins, 5 - outer frame, 6 - inner frame, 7 - jack, 8-force sensors, 9 - platform with stairs, 10 - cupboard power, 11 - a cabinet of thermometers, 12 - a cabinet of a weight controller, 13 - an electric pump, 14 - a hose with a viewing lamp, 15 - a quick-disconnect connection, 16 - thermowells for thermometers.

 The device is mounted on a car trailer 1, which moves to the place of use by a vehicle. The device is covered with a removable awning, which protects it from external factors during transportation.

 An outer frame 5 and an inner frame 6 are mounted on the trailer using the guide rods 3, 4. The studs are designed to secure the frames in the transport position and move them vertically in the working position. A metal model measuring cup 2 is attached to the inner frame. There are two types of filling in the metal measuring tank: upper and lower. The upper filling is carried out through the neck of the measuring device, the lower - through the flange connectors of the filling pipe. Four jacks 7 and strain gauge sensors are fixed on the outer frame 8. Also on the outer frame are installed: a platform with a ladder 9 for servicing the meter, a power cabinet 10, a cabinet of thermometers 1, a cabinet of a weight controller 12, a pump 13 and a hose with a viewing lamp 14 .

 Before starting work, the trailer 1 is disconnected from the vehicle, the working part of the device is freed from the tent and the measuring device is prepared for work. To do this, the device is put on the jacks 7. Using jacks, the frame 5 is lifted along the guide pins 3 to carry out the weighing of the measuring device by tensile-force sensors 8. After filling the measuring tank with oil product, the volume and weight of oil products are measured. After that, the oil products are pumped out from the meter by pump 13 and the device is again ready for measurements.

 Installation is used in three modes.

 Pre-start mode (preparatory).

Before starting work, the trailer is disconnected from the vehicle. Using a quick coupler 15, the hose with the inspection lamp 14 is connected to the exemplary meter 2, after removing the plugs. Plugs are removed from the thermowells 16 and thermometers are installed and connected. The installation is put on the jacks 7. Using the jacks, the frame 5 is lifted along the guide pins 3 until the tensile force sensors come in contact with the stops attached to the stands of the exemplary meter 2. In the future lifting the jacks, the frame 5 raises the inner frame 6 with an exemplary measurer 2 mounted on it. In this case, the inner frame 6 moves along the guide pins 4. Raising the frame with a measurer 2 is carried out until the inner frame 6 is separated from the trailer, as a result of which the trailer is unloaded from weight installation. Mernik is exposed vertically by means of jacks. The verticality of the measuring unit is controlled by a plumb line and the surface level located on the neck of the measuring unit. After that, weigh the empty measurer 2.

 Work mode.

 Close the oil drain valve from the measuring device 2. Connect the tip of the recovery of the vapor-air mixture. Open the lid on the neck at the top filling; at lower loading - the oil product supply pipeline is connected to the non-return valve.

Mernik 2 is filled with verifiable oil product of Zm ³ volume. When lower loading, remove the plugs to the pipeline and connect a check valve with a handle for opening during filling. Through the inspection lamp located above the neck of the measuring device, they monitor the flow of oil into the measuring device.

 The first filling is the wetting of the measuring device 2, regardless of the filling method, and filling the pipeline to the inspection lamp with a lower filling. When draining the oil, open the drain valve and turn on the pump. The wetted measuring unit 2 is weighed together with the remaining liquid in the pipeline, with a valve and an inspection lamp. Zero the weight reading.

 The procedure of loading, weighing a full measuring cup 2 and draining the oil is repeated 2-3 times. After each filling, the temperature of the oil product is measured by electronic thermometers and, making sure that the level of the oil product is finally installed in measuring tank 2, the volume of the oil product is determined on a scale at a given temperature. Using a weight controller to determine the mass of oil.

In this case, the difference between the results of these measurements should not exceed half of the basic error of the measuring device. After measurements, the arithmetic mean value of the volume and mass of the oil being tested is determined. Final mode.

 After the measurements have been completed, the drain cock from the meter is opened and the pump is turned on to remove oil from the meter until the measuring tank is completely emptied. After emptying, the measuring unit 2 with the help of jacks is lowered to the contact with the trailer, and then the jacks are put in the upper extreme position, the thermometers are disconnected and packaged. Disconnect the unit from the power source.

 Transport the device on a trailer in accordance with the transportation rules in force for this type of vehicle.

 The invention provides a safe loading of petroleum products, improving the accuracy of measuring the amount of petroleum products dispensed under the upper and lower loading modes, the efficient use of the installation due to its rapid movement to various controlled objects. Industrial applicability

 The possibility of industrial application of the claimed technical solution is confirmed by means and methods known and described in the application by which the invention can be carried out in the form described in the claims. The claimed device can be implemented using well-known technologies and technical means, which determines, according to the applicant, its compliance with the condition of "industrial applicability".

Claims

Claim  A mobile unit for monitoring the loading of oil products, including measuring and control means, characterized in that the measuring and control means are made in the form of an exemplary metal measuring device, including an upper and lower filling, of a temperature measuring unit equipped with a breathing valve and a vapor-air mixture recovery valve, viewing lights mounted on an internal frame attached to a car trailer, while an external frame equipped with fixed and her jacks and tenzosi- lovymi sensors that via the interface module is connected with the weight concentration controller.