Pressure and flow test board for heat exchanger

Abstract

The utility model discloses a heat exchanger pressure flow testboard, which comprises a machine body, a water tank and a station for testing, the water tank is connected with a water supply pipeline set used for supplementing water to the water tank, a water volume adjusting pipeline set used for conducting water supply detection on the heat exchanger and a backflow pipeline set used for guiding water flowing through the heat exchanger back into the water tank, and the water tank is provided with a temperature sensor capable of controlling the temperature of water discharged by the water volume adjusting pipeline set. Therefore, stable water source guarantee can be provided through the water supply pipeline group, and the water supply quantity of the tested heat exchanger can be accurately adjusted through the water quantity adjusting pipeline group according to different test requirements. Water passing through the heat exchanger is guided back to the water tank again through the backflow pipeline set. And a temperature sensor can monitor the water temperature of water discharged by the water volume adjusting pipeline group in real time, so that the heat exchanger can be subjected to pressure and flow testing under the stable and controllable water temperature condition, and the testing accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of flow testing, and in particular to a pressure and flow test bench for heat exchangers. Background Technology

[0002] Heat exchangers are widely used in many industrial and civil fields, and their performance stability and reliability are crucial. Accurately testing their pressure and flow parameters is a key step in evaluating their performance during the manufacturing and quality inspection of heat exchangers. However, existing testing equipment often suffers from limitations such as single-function limitations, low testing accuracy, unstable water temperature control, and inconvenient operation, making it difficult to meet the needs of modern heat exchanger production and testing. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a test bench that can achieve accurate and efficient testing of the pressure and flow rate of heat exchangers, and has a stable water temperature control function, thereby improving the accuracy and reliability of the test.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A heat exchanger pressure and flow test bench includes a body, a water tank mounted on the body, and a workstation mounted on the body for testing the heat exchanger. The water tank is connected to a water supply pipeline assembly for replenishing water to the water tank, a water flow regulating pipeline assembly for testing the water supply to the heat exchanger, and a return pipeline assembly for guiding water flowing through the heat exchanger back to the water tank. The water tank is equipped with a temperature sensor that can control the water temperature discharged from the water flow regulating pipeline assembly.

[0006] In a preferred embodiment of this utility model, the water supply pipeline assembly includes a water supply pipe connected to the water tank, and a first valve body, a first water filter, and a second valve body sequentially arranged along the water flow direction on the water supply pipe.

[0007] In a preferred embodiment of this utility model, the water flow regulating pipeline assembly includes a water flow regulating pipe connected to the water tank, and a second water filter, a water pump, a first pressure gauge, a high flow control pipeline, a low flow control pipeline, a second pressure gauge, a pressure sensor, and a third valve body arranged sequentially along the water flow direction on the water flow regulating pipeline. The high flow control pipeline and the low flow control pipeline are connected in parallel. The second pressure gauge and the pressure sensor are located at the workstation.

[0008] In a preferred embodiment of this utility model, the high-flow control pipeline includes a high-flow control pipe, a high-flow control valve installed on the high-flow control pipe, and a first flow meter for detecting the water flow rate in the high-flow control pipe.

[0009] In a preferred embodiment of this utility model, the low-flow control pipeline includes a low-flow control pipe, a low-flow control valve installed on the low-flow control pipe, and a second flow meter for detecting the water flow rate in the low-flow control pipe.

[0010] In a preferred embodiment of this utility model, a diversion pipe is provided on the water volume regulating pipe and located between the water pump and the first pressure gauge, and a fourth valve body is provided on the diversion pipe.

[0011] In a preferred embodiment of this utility model, the return pipeline assembly includes a return pipeline connected to the water tank and a fifth valve body disposed on the return pipeline.

[0012] In a preferred embodiment of this utility model, the water tank is connected to a drainage pipe assembly for drainage. The drainage pipe assembly includes a high-flow drainage pipe and a low-flow drainage pipe connected to the water tank and connected in parallel, a high-flow drainage control valve installed on the high-flow drainage pipe, and a low-flow drainage control valve installed on the low-flow drainage pipe. The other ends of the high-flow drainage pipe and the low-flow drainage pipe are connected to a water tank.

[0013] In a preferred embodiment of this utility model, the water tank is connected to an overflow pipe assembly for preventing overflow, the overflow pipe assembly including an overflow pipe connected to the water tank, and the other end of the overflow pipe being connected to the water trough.

[0014] In a preferred embodiment of this utility model, the bottom of the machine body is provided with height-adjustable support feet and casters for moving the machine body.

[0015] The beneficial effects of this invention are as follows: The test bench includes a main body and a water tank mounted on the main body. A water supply pipeline group, a water flow regulation pipeline group, and a return pipeline group are connected to the water tank. A temperature sensor is also installed on the water tank to control the temperature of the water discharged from the water flow regulation pipeline group. This provides a stable water source for the testing process through the water supply pipeline group. The water flow regulation pipeline group allows for precise adjustment of the water supply to the heat exchanger under test according to different testing needs, thereby achieving accurate testing of flow parameters. The return pipeline group returns the water that has passed through the heat exchanger to the water tank, which not only saves water resources but also ensures the relative stability of the water temperature during the test, reducing the impact of water temperature fluctuations on the test results. Furthermore, the temperature sensor can monitor the water temperature discharged from the water flow regulation pipeline group in real time, enabling the heat exchanger to undergo pressure and flow tests under stable and controllable water temperature conditions, greatly improving the accuracy and comparability of the test results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the pipeline of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0020] Reference Figures 1 to 3A heat exchanger pressure and flow test bench includes a main body 1, a water tank 2 mounted on the main body 1, and a workstation 11 mounted on the main body 1 for testing the heat exchanger. The water tank 2 is connected to a water supply pipeline assembly 3 for replenishing water to the tank 2, a water flow regulating pipeline assembly 4 for testing the water supply to the heat exchanger, and a return pipeline assembly 5 for guiding water flowing through the heat exchanger back to the water tank 2. The water tank 2 is equipped with a temperature sensor 6 that controls the temperature of the water discharged from the water flow regulating pipeline assembly 4. The water supply pipeline assembly 3 ensures that the water level in the water tank 2 is always maintained at a suitable level, providing a stable water source for the testing process. The water flow regulating pipeline assembly 4 can precisely adjust the water supply to the heat exchanger under test according to different testing requirements, thereby achieving accurate testing of flow parameters. The return pipeline group 5 returns the water that has passed through the heat exchanger back to the water tank 2, forming a circulating water system. This not only saves water resources but also ensures the relative stability of the water temperature during the test, reducing the impact of water temperature fluctuations on the test results. Furthermore, the temperature sensor 6 monitors the water temperature discharged from the water flow regulating pipeline group 4 in real time. Discharge begins when the temperature is higher than the set temperature (42℃-48℃) and stops when the temperature is lower than the set temperature (32℃-38℃), ensuring the test water temperature range is maintained. This allows the heat exchanger to perform pressure and flow tests under stable and controllable water temperature conditions, greatly improving the accuracy and comparability of the test results.

[0021] In this scheme, the water supply pipeline group 3 includes a water supply pipe 31 connected to the water tank 2, and a first valve body 32, a first water filter 33 and a second valve body 34 arranged sequentially along the water flow direction on the water supply pipe 31. One end of the water supply pipe 31 is connected to the tap water pipe, and the other end is connected to the water inlet at the upper end of the water tank 2.

[0022] In this scheme, the water flow regulating pipeline group 4 includes a water flow regulating pipe 41 connected to the water tank 2, and a second water filter 42, a water pump 43, a first pressure gauge 44, a high flow control pipeline 45, a low flow control pipeline 46, a second pressure gauge 47, a pressure sensor 48, and a third valve body 49 arranged sequentially along the water flow direction on the water flow regulating pipeline 41. The high flow control pipeline 45 and the low flow control pipeline 46 are connected in parallel. The second pressure gauge 47 and the pressure sensor 48 are installed at station 11 to facilitate the observation and recording of pressure values ​​during testing. Specifically, the high flow control pipeline 45 includes a high flow control pipe 451, a high flow control valve 452 installed on the high flow control pipe 451, and a first flow meter 453 for detecting the water flow rate in the high flow control pipe 451. The low-flow control pipeline 46 includes a low-flow control pipe 461, a low-flow control valve 462 installed on the low-flow control pipe 461, and a second flow meter 463 for detecting the water flow rate in the low-flow control pipe 461.

[0023] In this scheme, a diversion pipe 10 connected to the water tank 2 is provided on the water volume regulating pipe 41 and located between the water pump 43 and the first pressure gauge 44. A fourth valve body 101 is provided on the diversion pipe 10 to balance and regulate the water volume, so that the water volume regulating pipe group 4 can control the water volume more accurately.

[0024] In this scheme, the return pipeline group 5 includes a return pipeline 51 connected to the water tank 2 and a fifth valve body 52 disposed on the return pipeline 51.

[0025] In this design, a drainage pipe assembly 7 is connected to the drain outlet of the water tank 2. The drainage pipe assembly 7 includes a high-flow-rate drainage pipe 71 and a low-flow-rate drainage pipe 72 connected in parallel to the water tank 2, a high-flow-rate drainage control valve 711 installed on the high-flow-rate drainage pipe 71, and a low-flow-rate drainage control valve 721 installed on the low-flow-rate drainage pipe 72. The other ends of the high-flow-rate drainage pipe 71 and the low-flow-rate drainage pipe 72 are connected to a water tank 8. This allows for rapid drainage of water from the water tank 2 via the high-flow-rate drainage pipe 71, while the low-flow-rate drainage pipe 72 is used for fine-tuning the water flow within the water tank 2.

[0026] In this scheme, the overflow port at the upper end of the water tank 2 is connected to an overflow pipe assembly 9 for preventing overflow. The overflow pipe assembly 9 includes an overflow pipe 91 connected to the water tank 2, and the other end of the overflow pipe 91 is connected to the water tank 8.

[0027] In this design, the bottom of the machine body 1 is provided with an adjustable support foot 12 and casters 13 for moving the machine body 1. The support foot 12 includes a support rod and a support pad disposed on the support rod and threadedly connected to the support rod, so that the support pad can move up and down on the support rod to adjust the height. When the machine body needs to be moved, the support pad can be folded up and moved by the casters 13 on it, facilitating transportation.

[0028] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pressure and flow test bench for a heat exchanger, characterized in that, The device includes a body (1), a water tank (2) installed on the body (1), and a workstation (11) installed on the body (1) for testing the heat exchanger. The water tank (2) is connected to a water supply pipeline group (3) for replenishing water to the water tank (2), a water flow regulating pipeline group (4) for testing the water supply to the heat exchanger, and a return pipeline group (5) for drawing water flowing through the heat exchanger back to the water tank (2). The water tank (2) is equipped with a temperature sensor (6) that can control the water temperature of the water discharged from the water flow regulating pipeline group (4).

2. The heat exchanger pressure and flow test bench according to claim 1, characterized in that, The water supply pipeline assembly (3) includes a water supply pipe (31) connected to the water tank (2), and a first valve body (32), a first water filter (33), and a second valve body (34) sequentially arranged along the water flow direction on the water supply pipe (31).

3. The heat exchanger pressure and flow test bench according to claim 2, characterized in that, The water flow regulating pipeline group (4) includes a water flow regulating pipeline (41) connected to the water tank (2), and a second water filter (42), a water pump (43), a first pressure gauge (44), a large flow control pipeline (45), a small flow control pipeline (46), a second pressure gauge (47), a pressure sensor (48), and a third valve body (49) arranged sequentially along the water flow direction on the water flow regulating pipeline (41). The large flow control pipeline (45) and the small flow control pipeline (46) are connected in parallel. The second pressure gauge (47) and the pressure sensor (48) are located on the work station (11).

4. The heat exchanger pressure and flow test bench according to claim 3, characterized in that, The high flow control pipeline (45) includes a high flow control pipe (451), a high flow control valve (452) installed on the high flow control pipe (451), and a first flow meter (453) for detecting the water flow in the high flow control pipe (451).

5. A heat exchanger pressure and flow test bench according to claim 3, characterized in that, The low flow control pipeline (46) includes a low flow control pipe (461), a low flow control valve (462) installed on the low flow control pipe (461), and a second flow meter (463) for detecting the water flow in the low flow control pipe (461).

6. A heat exchanger pressure and flow test bench according to claim 3, characterized in that, A diversion pipe (10) is provided on the water flow regulating pipe (41) and between the water pump (43) and the first pressure gauge (44) and connected to the water tank (2). A fourth valve body (101) is provided on the diversion pipe (10).

7. A heat exchanger pressure and flow test bench according to claim 1, characterized in that, The return pipeline assembly (5) includes a return pipe (51) connected to the water tank (2) and a fifth valve body (52) disposed on the return pipe (51).

8. A heat exchanger pressure and flow test bench according to claim 1, characterized in that, The water tank (2) is connected to a drainage pipe assembly (7) for drainage. The drainage pipe assembly (7) includes a high-flow drainage pipe (71) and a low-flow drainage pipe (72) connected to the water tank (2) and connected in parallel, a high-flow drainage control valve (711) installed on the high-flow drainage pipe (71), and a low-flow drainage control valve (721) installed on the low-flow drainage pipe (72). The other ends of the high-flow drainage pipe (71) and the low-flow drainage pipe (72) are connected to a water tank (8).

9. A heat exchanger pressure and flow test bench according to claim 8, characterized in that, The water tank (2) is connected to an overflow pipe assembly (9) for preventing overflow. The overflow pipe assembly (9) includes an overflow pipe (91) connected to the water tank (2), and the other end of the overflow pipe (91) is connected to the water tank (8).

10. A heat exchanger pressure and flow test bench according to claim 1, characterized in that, The bottom of the body (1) is provided with height-adjustable support feet (12) and casters (13) for moving the body (1).

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