CN216284342U

CN216284342U - Aviation kerosene equipment test system

Info

Publication number: CN216284342U
Application number: CN202123197423.1U
Authority: CN
Inventors: 李秀杰; 王庆宇; 关慧
Original assignee: Nanjing FLN Cryogenic Engineering Co ltd
Current assignee: Nanjing FLN Cryogenic Engineering Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-04-12
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a test system of aviation kerosene equipment, which comprises an oil pump, a filtering system, a heat exchanger, heating and refrigerating equipment and a high-low temperature environment test box, wherein the oil pump, the filtering system, the heat exchanger and the high-low temperature environment test box are sequentially connected in series on a pipeline to form a closed loop, a test medium flows in the pipeline, the heat exchanger is connected with the heating and refrigerating equipment in parallel, the high-low temperature environment test box is used for controlling the environmental temperature of a tested product, the heating and refrigerating equipment is used for heating or refrigerating heat-conducting oil in the heating and refrigerating equipment, and the heat-conducting oil is heated or refrigerated and then exchanges heat with the test medium in a heat exchanger to control the temperature of the test medium. The utility model controls the temperature of the test medium flowing through the tested product and the ambient temperature of the tested product separately, can effectively avoid the influence of the ambient temperature on the temperature of the medium, and improves the test precision.

Description

Aviation kerosene equipment test system

Technical Field

The utility model belongs to the technical field of test equipment, and particularly relates to an aviation kerosene equipment test system.

Background

The aircraft should endure not only winter severe cold in the north region but also summer severe heat in the south region. When in use, the aircraft often encounters climatic environments such as high temperature, low temperature, heat, sunshine, rain, snow and the like, and sometimes special environments such as wind sand, salt mist, oil mist, rain mist, lightning stroke and the like. Under the action of these environments, the body structure made of metal, non-metal and composite materials may be subject to expansion deformation, corrosion aging, cracking and brittle fracture at any time. The change is material spontaneous and most irreversible, and the performance of various devices and systems on the aircraft can change under the action of the environment, so that various faults occur, and therefore, the problem of environmental adaptability of the aircraft is a very important and outstanding problem.

Therefore, test facilities of jet fuel plants aim to simulate the situation of jet fuel during the flight of an aircraft, so that it is possible to more specifically give directions or suggestions to the improvement of the jet fuel plant performance. If the application publication date is 2012, 6 and 13, the application publication number is CN102493954A, and the patent name is an online environment high-temperature test box for aviation kerosene hydraulic pump, a technical scheme is provided, which comprises a box body (24); a working chamber (6) is arranged in the box body (24), the working chamber (6) is connected with the test bed (21) through a pipeline A (12), a pressure relief door (7) is arranged at the upper part of the box body (24), and an explosion relief box (8) is arranged above the pressure relief door (7); the lower part of the box body (24) is provided with an anti-explosion heater (15), an anti-explosion fan (1) and a water cooler (16) in parallel; the box body (24) is connected with the test bed transmission device (17) through the sealing head (20). The utility model has the characteristics of high temperature, high temperature rise rate, explosion prevention and explosion resistance, and can meet the requirements of on-line working condition tests of aviation kerosene hydraulic pumps with high temperature, high temperature rise rate and easiness in explosion.

However, as with most products on the market at present, the above patent is dedicated to miniaturizing the aviation kerosene test equipment, and basically, the whole equipment is controlled by a manual valve, and the whole equipment is pushed into a high-temperature and low-temperature box for testing. It has the problems that: (1) the respective control of the ambient temperature and the medium temperature cannot be realized, and only one temperature can be controlled; (2) when the temperature of the whole equipment is lower than minus 40 ℃, part of sensors and valve controllers cannot be used, and the measurement precision is influenced when an operator enters a low-temperature environment to operate; (3) when the power of the tested product is high, the temperature of the test equipment is increased quickly, and the equipment cannot perform a long-time test. In this regard, there is a need for an effective solution.

Disclosure of Invention

1. Problems to be solved

The utility model provides an aviation kerosene equipment test system, aiming at the problems that the respective control of the environmental temperature and the medium temperature cannot be realized in the prior art and the like.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the utility model is as follows: the utility model provides a test system of aviation kerosene equipment, includes oil pump, filtration system, heat exchanger, heating refrigeration plant, high low temperature environment test box, and wherein, oil pump, filtration system, heat exchanger and high low temperature environment test box establish ties in proper order and form a confined return circuit on the pipeline, and the test medium flows in the pipeline, the heat exchanger connects in parallel has a heating refrigeration plant, high low temperature environment test box is used for controlling the ambient temperature of being tried the product, and heating refrigeration plant is arranged in for heating the conduction oil heating or refrigeration in the heating refrigeration plant, and the conduction oil is heated or is carried out the heat exchange with the test medium in the heat exchanger after refrigerating to the temperature of control test medium. The technical scheme separately controls the temperature of the test medium flowing through the tested product and the ambient temperature of the tested product, can effectively avoid the influence of the ambient temperature on the temperature of the medium, and improves the test precision.

Further, still include the converter, the converter links to each other with the oil pump for the rotational speed of control oil pump.

Further, the filtration system includes a first filter and a second filter, the first filter and the second filter being in series.

Further, a conduit is connected in parallel with the conduit in which the filtration system is located for providing a passage for the media therethrough when the filtration system is blocked. When the low-temperature test medium has ice particles so as not to smoothly pass through the filtering system, the ice particles can pass through the parallel pipelines so as not to cause the blockage of the first filtering system.

Further, the heat exchanger also comprises a buffer oil tank, and the buffer oil tank is connected with the heat exchanger in series. When the medium passes through the buffer oil tank, the speed is reduced, so that the oil is fully mixed, and the temperature is uniformly distributed; meanwhile, during a low-temperature test, condensed water in the system sinks to the buffer oil tank and the bottom of the buffer oil tank, so that a drainage effect is achieved; the buffer oil tank is internally provided with a large amount of oil liquid, can store certain energy, and is used for temperature buffering of the system and convenient for temperature control.

The test system also comprises a main oil tank, wherein the main oil tank is connected with an oil pump and is used for supplying oil to the aviation kerosene equipment test system. When the oil leakage occurs during the operation of the system, the main oil tank can supplement oil (namely medium or aviation kerosene) to the system so as to maintain the normal operation of the system.

Further, the flow sensor is arranged on the pipeline and used for detecting the flow of the flow pipeline.

Further, a first temperature sensor is arranged on the main oil tank and used for detecting the temperature in the main oil tank.

Further, still be provided with the level gauge on the main oil tank, the level gauge is used for detecting the medium pressure in the main oil tank.

Further, the heating and refrigerating equipment is a cascade gas compression type refrigerating equipment.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) the medium temperature and the environment temperature of the aviation kerosene equipment are separately controlled, so that the influence of the environment temperature on the medium temperature is effectively avoided;

(2) the utility model can be suitable for different aviation kerosene equipment and has better compatibility;

(3) the utility model is convenient for the remote control of equipment operators, and effectively avoids the influence on the medium temperature caused by the entering of personnel, thereby influencing the test accuracy;

(4) the utility model has simple structure, reasonable design and easy manufacture.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1: a main oil tank; 2: an oil pump; 3: a filtration system; g1: a first filter; g2: a second filter; 4: a heat exchanger; 5: heating and refrigerating equipment; 6: a buffer oil tank; 7: a high and low temperature environment test chamber; 8: a flow sensor; TIR 1: a first temperature sensor; TIR 1: a first temperature sensor; TIR 2: a second temperature sensor; TIR 3: a third temperature sensor; TIR 4: a fourth temperature sensor; SIR: a liquid level meter; PIR 1: a first pressure sensor; PIR 2: a second pressure sensor; g1: a first filter; g2: a second filter; BPQ 1: and a frequency converter.

Detailed Description

The utility model is further described with reference to specific examples.

As shown in fig. 1, the present invention comprises a main oil tank 1 (CYX in the figure), an oil pump 2, a filter system 3, a heat exchanger 4, a heating and refrigerating device 5 (LR in the figure), a buffer oil tank 6, a high and low temperature environmental test tank 7 and a flow sensor 8, wherein the main oil tank 1 is used for supplementing oil to the whole system, which does not participate in the system circulation, and more specifically, the main oil tank 1 is filled with aviation kerosene (i.e. oil or medium or tested medium in the utility model), when the medium leaks due to temperature changes during the operation of the system, which causes medium deficiency in the system, a valve connecting the main oil tank 1 with the system pipeline can be opened to supplement the medium to the system to ensure the normal operation of the system; the oil pump 2 is used for providing power for system equipment to meet the pressure flow demand of a tested product (namely, a jet fuel oil device); the filtering system 3 is used for ensuring the cleanness of the media of the system, and in particular, when the filtering system 3 comprises a first filter G1 and a second filter G2, a pipeline is connected in parallel on the pipeline provided with the filtering system 3, and when the low-temperature test media (namely aviation kerosene) generates ice particles and cannot smoothly pass through the first filter G1 or the second filter G2, the ice particles can pass through the pipeline so as not to cause the blockage of the first filter G1 or the second filter G2. The heat exchanger 4 is used for realizing heat transfer between heat conduction oil and a test medium, the heating and refrigerating equipment 5 is used for heating or refrigerating the heat conduction oil in the heating and refrigerating equipment 5, energy is transferred to the test medium through the heat exchanger 4, and during specific implementation, the heating and refrigerating equipment 5 adopts a cascade gas compression type refrigerating equipment. Buffer tank 6 is used for even test medium temperature, plays drainage and the effect of storage energy simultaneously, and high low temperature environmental test case 7 is used for controlling the ambient temperature of being tried the product, and flow sensor 8 is used for detecting the medium flow who flows through by the product that is tried. It should be noted that the aviation kerosene (i.e. medium) is contained in the tested product (i.e. aviation kerosene device), and when the test is performed, the tested product is put into the high-low temperature environment test box 7, the medium with the set temperature flows through the inside of the tested product, and the environment temperature is set by the high-low temperature environment test box, so that when the test is performed, the medium temperature in the tested product and the environment temperature where the tested product is located are not affected each other, and the accuracy of the test is ensured.

The specific connection relationship of the utility model is as follows: a pipeline is connected to main oil tank 1, be provided with oil pump 2 on the pipeline, be provided with converter BPQ1 on oil pump 2, a rotational speed for controlling oil pump 2, and simultaneously, there are two pipelines with the export of oil pump 2 in parallel, be provided with filtration system 3 on the pipeline of oil pump 2 export, during concrete implementation, filtration system 3 includes first filter G1 and second filter G2 of two series connections, it has another pipeline to connect in parallel on filtration system 3's pipeline, a pipeline that is used for passing through in the follow this parallelly connected pipeline when the ice grain so that can't pass through filtration system 3 appears in the medium. After filtration system 3, have concatenated heat exchanger 4 in proper order on the pipeline, buffer tank 6, have heating refrigeration plant 5 with heat exchanger 4 and buffer tank 6 parallel connection, have concatenated high low temperature environment test box 7 behind this parallel structure, the product setting is in high low temperature environment test box 7 by the examination, be provided with flow sensor 8 on the pipeline behind high low temperature environment test box 7, the medium flows through flow sensor 8 after and flows back to the inlet junction of main oil tank 1 and oil pump 2 again, form a complete return circuit. In specific implementation, a first temperature sensor TIR1 and a liquid level meter SIR are arranged on the main oil tank 1, the first temperature sensor TIR1 is used for detecting the medium temperature in the main oil tank 1, the liquid level meter SIR is used for detecting the liquid level height in the main oil tank 1, a fourth temperature sensor TIR4 is arranged on the heating and cooling device 5 and is used for detecting the temperature of the heating and cooling device 5, a second temperature sensor TIR2, a third temperature sensor TIR3, a first pressure sensor PIR1, a second pressure sensor PIR2 and a flow sensor 8 are respectively arranged on a pipeline in series connection with the high-low temperature environmental test box 7, and the flow sensor 8 (i.e. the FIRC in the figure) is used for measuring the medium flow passing through the tested product.

The utility model is provided with two sets of temperature control devices, wherein one set is a high-low temperature environment test box 7 used for controlling the temperature of the environment of a tested product, and the other set is a heating and refrigerating device 5 used for controlling the temperature of a test medium. In specific implementation, the test medium cannot directly enter the heating and refrigerating equipment 5, but the heat exchanger 4 is used for heat exchange to realize the temperature control of the test medium; after the heating and refrigerating equipment 5 is started, the temperature of the heat conducting oil is controlled, and heat is transferred to a test medium through the heat exchanger 4; the test medium circulating system adopts closed circulation, the main oil tank 1 does not participate in circulation, power is provided through the oil pump 2 to push the test medium to circulate, the test medium and heat conduction oil are subjected to heat interaction through the heat exchanger 4 to realize system temperature control, the buffer oil tank 6 is arranged at the outlet of the heat exchanger 4, the test medium flows through a tested product after passing through the buffer oil tank 6, the third temperature sensor TIR3 and the second pressure sensor PIR2, and the control of the medium temperature of the tested product is realized. The medium flows out of the tested product and enters the suction inlet of the main oil pump 1 to form a closed system.

It should be noted that, as shown in fig. 1, when the present invention is implemented, various valves need to be arranged according to needs, and the arrangement of the valves is common knowledge of those skilled in the art, and is not described herein again.

The utility model can realize the environmental temperature control and the medium temperature control of the tested product, the temperature control range is-55-70 ℃, the environmental temperature control and the medium temperature control are relatively independent and do not interfere with each other; the high-temperature medium can be prevented from directly contacting air at high temperature of the system, so that the safety protection level of equipment is improved, and the oxidation of the test medium can be reduced; the main oil tank 1 does not participate in circulation, so that the heat of system circulation can be reduced, and energy is saved. Meanwhile, the system can also prevent low-temperature oil from contacting air during low-temperature test, and generated condensed water enters the system. The utility model is provided with the buffer oil tank 6, when a medium passes through the buffer oil tank 6, the speed is reduced, so that oil is fully mixed, and the temperature is uniformly distributed; meanwhile, during a low-temperature test, condensed water in the system sinks to the bottom of the buffer oil tank 6 to play a role in draining water; a large amount of oil liquid is stored in the buffer oil tank 6, certain energy can be stored, and the buffer oil tank is used for temperature buffering of a system and convenient for temperature control.

Claims

1. The aviation kerosene equipment test system is characterized in that: the device comprises an oil pump, a filtering system, a heat exchanger, heating and refrigerating equipment and a high-low temperature environment test box, wherein the oil pump, the filtering system, the heat exchanger and the high-low temperature environment test box are sequentially connected in series to form a closed loop on a pipeline, a test medium flows in the pipeline, the heat exchanger is connected with the heating and refrigerating equipment in parallel, the high-low temperature environment test box is used for controlling the environmental temperature of a tested product, the heating and refrigerating equipment is used for heating or refrigerating heat transfer oil in the heating and refrigerating equipment, and the heat transfer oil is heated or refrigerated and then exchanges heat with the test medium in a heat exchanger to control the temperature of the test medium.

2. The aviation kerosene plant test system of claim 1, wherein: the device also comprises a frequency converter, wherein the frequency converter is connected with the oil pump and used for controlling the rotating speed of the oil pump.

3. The aviation kerosene plant test system according to claim 1 or 2, wherein: the filtration system includes a first filter and a second filter, the first filter and the second filter being in series.

4. The aviation kerosene plant test system according to claim 1 or 2, wherein: the filter system is located in a conduit in parallel with a conduit for providing a passage for the media when the filter system is blocked.

5. The aviation kerosene plant test system according to claim 1 or 2, wherein: the heat exchanger also comprises a buffer oil tank, wherein the buffer oil tank is connected with the heat exchanger in series.

6. The aviation kerosene plant test system according to claim 1 or 2, wherein: the test system also comprises a main oil tank, wherein the main oil tank is connected with an oil pump and is used for supplying oil to the aviation kerosene equipment test system.

7. The aviation kerosene plant test system according to claim 1 or 2, wherein: the flow sensor is arranged on the pipeline and used for detecting the flow of the flow pipeline.

8. The aviation kerosene plant testing system of claim 6, wherein: the main oil tank is provided with a first temperature sensor, and the first temperature sensor is used for detecting the temperature in the main oil tank.

9. The aviation kerosene plant testing system of claim 6, wherein: the main oil tank is also provided with a liquid level meter, and the liquid level meter is used for detecting the liquid level height in the main oil tank.

10. The aviation kerosene plant test system according to claim 1 or 2, wherein: the heating and refrigerating equipment is overlapped gas compression type refrigerating equipment.