CN220872392U - Testing system of gas-liquid heat exchanger - Google Patents
Testing system of gas-liquid heat exchanger Download PDFInfo
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- CN220872392U CN220872392U CN202322337152.8U CN202322337152U CN220872392U CN 220872392 U CN220872392 U CN 220872392U CN 202322337152 U CN202322337152 U CN 202322337152U CN 220872392 U CN220872392 U CN 220872392U
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- liquid heat
- temperature sensor
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- 239000007788 liquid Substances 0.000 title claims abstract description 125
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000012530 fluid Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
Abstract
The utility model relates to the technical field of gas-liquid heat exchanger testing, and discloses a testing system of a gas-liquid heat exchanger, which comprises a gas circuit module and a liquid circuit module; the air circuit module comprises an air compressor and a first back pressure valve; the air compressor is connected with an air passage inlet of the gas-liquid heat exchanger, and an air passage outlet of the gas-liquid heat exchanger is connected with the first back pressure valve; the air channel inlet is provided with a first temperature sensor and a first pressure sensor; the gas path outlet is provided with a second temperature sensor and a second pressure sensor; the liquid path module comprises a second back pressure valve, a water tank, a water pump and a radiator which are connected in a liquid path, two ends of the liquid path module are respectively connected with a liquid path inlet and a liquid path outlet circulation liquid path of the gas-liquid heat exchanger, a third temperature sensor and a third pressure sensor are installed at the liquid path inlet, and a fourth temperature sensor and a fourth pressure sensor are installed at the liquid path outlet. The test system can effectively adjust the test conditions, so that the test result is accurate.
Description
Technical Field
The utility model relates to the technical field of gas-liquid heat exchanger testing, in particular to a testing system of a gas-liquid heat exchanger.
Background
The gas-liquid flow channels are densely distributed in the gas-liquid heat exchanger, and the gas and the liquid with temperature difference pass through the gas-liquid flow channels of the heat exchanger to realize heat exchange. The gas-liquid heat exchanger is an important component of a power system such as a turbo-charged engine, a hydrogen fuel engine and the like, has important influence on the regulation and control of the system temperature and air inflow, and the heat exchange power and the gas-liquid flow resistance are the most interesting performances in the design and selection process. At present, a test system for a gas-liquid heat exchanger cannot effectively adjust test conditions, so that the accuracy of test results is low.
Disclosure of utility model
The utility model aims to provide a test system of a gas-liquid heat exchanger, which can effectively adjust test conditions so that test results are accurate.
In order to achieve the above purpose, the utility model provides a testing system of a gas-liquid heat exchanger, comprising a gas circuit module and a liquid circuit module;
the air circuit module comprises an air compressor and a first back pressure valve; the air compressor is connected with the air passage inlet of the gas-liquid heat exchanger, and the air passage outlet of the gas-liquid heat exchanger is connected with the first back pressure valve; the air channel inlet is provided with a first temperature sensor and a first pressure sensor; the gas path outlet is provided with a second temperature sensor and a second pressure sensor;
The liquid way module comprises a second back pressure valve, a water tank, a water pump and a radiator which are connected in a liquid way, two end parts of the liquid way module are respectively connected with a liquid way inlet and a liquid way outlet circulation liquid way of the gas-liquid heat exchanger, a third temperature sensor and a third pressure sensor are installed at the liquid way inlet, and a fourth temperature sensor and a fourth pressure sensor are installed at the liquid way outlet.
In some embodiments, a muffler is also connected to the first back pressure valve.
In some embodiments, the second back pressure valve, the water tank, the water pump, and the radiator are connected in fluid communication in sequence.
In some embodiments, the second back pressure valve is fluidly connected to the fluid line outlet.
In some embodiments, the radiator is fluidly connected to the fluid inlet.
In some embodiments, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the fourth temperature sensor are thermal resistance temperature sensors or thermocouple temperature sensors.
In some embodiments, the first pressure sensor, the second pressure sensor, the third pressure sensor, and the fourth pressure sensor are one of piezoresistive pressure sensors, strain gauge pressure sensors, and capacitive pressure sensors.
In some embodiments, the water pump is a booster water pump; the water tank is a pressure-bearing water tank.
In some embodiments, the air compressor is one of a reciprocating piston air compressor, a rotary vane air compressor, and a rotary screw air compressor.
The utility model provides a testing system of a gas-liquid heat exchanger, which has the beneficial effects that compared with the prior art:
The first back pressure valve can adjust the pressure in the gas path, the second back pressure valve can adjust the pressure in the liquid path, and when the gas path pressure and the liquid path pressure are adjusted to the pressure values under the actual working conditions, the obtained test result is accurate; the two ends of the liquid path module are respectively connected with a liquid path inlet and a liquid path outlet of the gas-liquid heat exchanger in a circulating liquid path, so that water can be recycled in the whole test process, and water is effectively saved.
Drawings
Fig. 1 is a schematic perspective view of a testing system of a gas-liquid heat exchanger according to an embodiment of the present utility model.
In the figure: 100. a testing system of the gas-liquid heat exchanger; 1. the gas circuit module; 11. an air compressor; 12. a first back pressure valve; 13. a first temperature sensor; 14. a first pressure sensor; 15. a second temperature sensor; 16. a second pressure sensor; 17. a muffler; 2. a liquid path module; 21. a second back pressure valve; 22. a water tank; 23. a water pump; 24. a heat sink; 25. a third temperature sensor; 26. a third pressure sensor; 27. a fourth temperature sensor; 28. a fourth pressure sensor; 3. a gas-liquid heat exchanger.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application.
It is to be understood that in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1, a test system 100 of a gas-liquid heat exchanger according to an embodiment of the present utility model includes a gas circuit module 1 and a liquid circuit module 2. The gas channel module 1 introduces gas to exchange heat with water of the liquid channel module 2 through a gas-liquid heat exchanger.
In this embodiment, the air circuit module 1 includes an air compressor 11 and a first back pressure valve 12; the air compressor 11 is connected with an air passage inlet of the gas-liquid heat exchanger 3, and an air passage outlet of the gas-liquid heat exchanger 3 is connected with the first back pressure valve 12; the air channel inlet is provided with a first temperature sensor 13 and a first pressure sensor 14; the gas path outlet is provided with a second temperature sensor 15 and a second pressure sensor 16. In operation, the air compressor 11 generates compressed air, after the air is compressed, the distance between air molecules is reduced, the collision between molecules is increased, so that heat is generated to raise the temperature, then the compressed air enters the gas-liquid heat exchanger 3, and the pressure ratio of the air compressor 11 (under the condition that the output power of the air compressor 11 is constant) is changed by adjusting the opening degree of the first back pressure valve 12 to be increased or decreased, so that the air pressure of the compressed air in the gas-liquid heat exchanger 3 is adjusted, and the temperature of the compressed air is adjusted. Wherein the first temperature sensor 13 and the first pressure sensor 14 are used for measuring the temperature and the pressure of the compressed air entering the gas-liquid heat exchanger 3; the second temperature sensor 15 and the second pressure sensor 16 are used for measuring the temperature and pressure of the compressed air in the exhaust gas-liquid heat exchanger 3.
In this embodiment, the liquid path module 2 includes a second back pressure valve 21, a water tank 22, a water pump 23 and a radiator 24 connected by a liquid path, both ends of the liquid path module 2 are respectively connected with a liquid path inlet and a liquid path outlet circulation liquid path of the gas-liquid heat exchanger 3, a third temperature sensor 25 and a third pressure sensor 26 are installed at the liquid path inlet, and a fourth temperature sensor 27 and a fourth pressure sensor 28 are installed at the liquid path outlet. It should be noted that the connection sequence of the second back pressure valve 21, the water tank 22, the water pump 23 and the radiator 24 does not affect the normal operation of the liquid path module 2. When the device works, the water pump 23 pressurizes a pipeline in the liquid path module 2, so that water circularly flows between the liquid path module 2 and the gas-liquid heat exchanger 3, and water consumption is effectively saved; the water tank 22 can store water, and is convenient to add after water is lost; the second back pressure valve 21 can adjust the flow of water in the liquid path module 2; the compressed air exchanges heat with water in the gas-liquid heat exchanger 3 so that the temperature of the water rises, and the radiator 24 can radiate the warmed water so that the water circulates to perform a test. Wherein the third temperature sensor 25 and the third pressure sensor 26 are used for measuring the temperature and the pressure of the water entering the gas-liquid heat exchanger 3; the fourth temperature sensor 27 and the fourth pressure sensor 28 are used to measure the temperature and pressure of the water exiting the liquid-gas heat exchanger 3.
Based on the above arrangement, the pressure in the gas path can be adjusted through the first back pressure valve 12, the pressure in the liquid path can be adjusted through the second back pressure valve 21, and when the gas path pressure and the liquid path pressure are adjusted to the pressure values under the actual working conditions, the obtained test result is accurate; the two ends of the liquid path module 2 are respectively connected with a liquid path inlet and a liquid path outlet of the gas-liquid heat exchanger 3 in a circulating liquid path, so that water can be recycled in the whole testing process, and water is effectively saved.
In the actual test process of the gas-liquid heat exchanger 3, after the pressure and the temperature of the gas circuit module 1 and the liquid circuit module 2 reach the specified values and are stable, the values of the sensors are recorded, and the test result is obtained.
Calculating the flow resistance of the gas-liquid heat exchanger 3:
Δp＝pin-pout
wherein: Δp—flow resistance in kPa; p in -inlet flow resistance in kPa; p out -outlet flow resistance in kPa.
Calculating the heat exchange power of the gas-liquid heat exchanger 3:
Q＝(QC+Qb)/2
QC＝VcPcCpc(tc2-tc1)
Qb＝VbPbCpb(th1-th2)
Wherein:
the heat exchange power of the Q-gas-liquid heat exchanger is kW;
Q C -the heat flow of the liquid in kW;
Q b -gas heat flow in kW;
V C -the liquid volume flow in m 3/s;
P C -liquid density in kg/m 3;
C PC -constant pressure specific heat capacity of liquid, wherein the unit is J/(kg.K);
t C1 -liquid inlet temperature in degrees Celsius;
t C2 -liquid outlet temperature in degrees centigrade;
V b -the gas volume flow in m 3/s;
p b -gas density in kg/m 3;
C pb -the constant pressure specific heat capacity of gas, the unit is J/(kg.K);
th 1 -gas inlet temperature in degrees centigrade;
th 2 -gas outlet temperature in degrees Celsius.
Through the above calculation, the main parameters of the gas-liquid heat exchanger 3, namely the flow resistance and the heat exchange power, can be obtained.
In one embodiment, the first back pressure valve 12 is also connected with a muffler 17. The muffler 17 serves to exhaust air in the air path module 1 and to maintain noise elimination during the air exhaust.
In one embodiment, the second back pressure valve 21, the water tank 22, the water pump 23 and the radiator 24 are connected in fluid communication in this order. The second back pressure valve 21 is in fluid connection with the fluid outlet. The radiator 24 is connected to the liquid path inlet liquid path. When the air-liquid heat exchanger works, water enters the air-liquid heat exchanger 3 through the radiator 24 to exchange heat with air to rise temperature, the water enters the water tank 22 again through the adjustment of the second back pressure valve 21, and the water in the water tank 22 is driven by the water pump 23 to flow into the radiator 24 for cooling, so that the circulating flow is realized.
Specifically, the first temperature sensor 13, the second temperature sensor 15, the third temperature sensor 25, and the fourth temperature sensor 27 are thermal resistance temperature sensors or thermocouple temperature sensors.
Specifically, the first pressure sensor 14, the second pressure sensor 16, the third pressure sensor 26, and the fourth pressure sensor 28 are one of piezoresistive pressure sensors, strain gauge pressure sensors, and capacitive pressure sensors.
Preferably, the water pump 23 is a booster water pump; the water tank 22 is a pressurized water tank. For the limit test, the piping in the liquid circuit module 2 is pressurized.
Specifically, the air compressor 11 is one of a reciprocating piston air compressor, a rotary vane air compressor, and a rotary screw air compressor.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (9)
1. A test system of a gas-liquid heat exchanger is characterized in that: the device comprises a gas circuit module and a liquid circuit module;
the air circuit module comprises an air compressor and a first back pressure valve; the air compressor is connected with the air passage inlet of the gas-liquid heat exchanger, and the air passage outlet of the gas-liquid heat exchanger is connected with the first back pressure valve; the air channel inlet is provided with a first temperature sensor and a first pressure sensor; the gas path outlet is provided with a second temperature sensor and a second pressure sensor;
The liquid way module comprises a second back pressure valve, a water tank, a water pump and a radiator which are connected with a liquid way, two end parts of the liquid way module are respectively connected with a liquid way inlet and a liquid way outlet circulation liquid way of the gas-liquid heat exchanger, a third temperature sensor and a third pressure sensor are installed at the liquid way inlet, and a fourth temperature sensor and a fourth pressure sensor are installed at the liquid way outlet.
2. The test system for a gas-liquid heat exchanger according to claim 1, wherein: the first back pressure valve is also connected with a muffler.
3. The test system for a gas-liquid heat exchanger according to claim 1, wherein: the second back pressure valve, the water tank, the water pump and the radiator are connected in sequence in a liquid way.
4. A test system for a gas-liquid heat exchanger according to claim 3, wherein: the second back pressure valve is in fluid connection with the fluid path outlet.
5. A test system for a gas-liquid heat exchanger according to claim 3, wherein: the radiator is in liquid connection with the liquid path inlet.
6. The test system for a gas-liquid heat exchanger according to claim 1, wherein: the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are thermal resistance temperature sensors or thermocouple temperature sensors.
7. The test system for a gas-liquid heat exchanger according to claim 1, wherein: the first pressure sensor, the second pressure sensor, the third pressure sensor and the fourth pressure sensor are one of piezoresistive pressure sensors, strain gauge pressure sensors and capacitive pressure sensors.
8. The test system for a gas-liquid heat exchanger according to claim 1, wherein: the water pump is a booster water pump; the water tank is a pressure-bearing water tank.
9. The test system for a gas-liquid heat exchanger according to claim 1, wherein: the air compressor is one of a double-piston air compressor, a rotary vane air compressor and a rotary screw air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322337152.8U CN220872392U (en) | 2023-08-30 | 2023-08-30 | Testing system of gas-liquid heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322337152.8U CN220872392U (en) | 2023-08-30 | 2023-08-30 | Testing system of gas-liquid heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872392U true CN220872392U (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322337152.8U Active CN220872392U (en) | 2023-08-30 | 2023-08-30 | Testing system of gas-liquid heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872392U (en) |
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2023
- 2023-08-30 CN CN202322337152.8U patent/CN220872392U/en active Active
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