Flow endurance test system

Abstract

The utility model discloses a flow endurance test system. The flow durability test system comprises an air compressor used for generating gas with pressure, a heat dissipation device used for conducting heat dissipation on the gas, a test pipe used for installing a tested product and a silencer used for silencing, and the test pipe comprises a test gas inlet pipe and a test gas outlet pipe. The air compressor, the heat dissipation device, the test air inlet pipe, the test air outlet pipe, the back pressure valve and the silencer are connected in sequence, the test air inlet pipe is installed at the air inlet end of a tested product, and the test air outlet pipe is installed at the air outlet end of the tested product. A pressure sensor used for detecting pressure and a temperature and humidity sensor used for detecting temperature and humidity are arranged on the test air inlet pipe, and a pressure sensor used for detecting pressure, a temperature and humidity sensor used for detecting temperature and humidity and a flow sensor used for detecting flow are arranged on the test air outlet pipe. The flow endurance test system can simulate different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of flow endurance testing technology, and in particular to a flow endurance testing system. Background Technology

[0002] With the continuous development of industrial technology, flow control products such as air valves and flow regulators are increasingly widely used in industrial automation, automotive manufacturing, aerospace, and other fields. To ensure the long-term stable performance of these products in practical applications, flow durability testing is crucial. Existing tests typically cannot adjust back pressure and can only adjust the pressure at the inlet, failing to effectively simulate various operating conditions. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a flow durability test system that can adjust the back pressure to simulate durability performance under different operating conditions.

[0004] To address the aforementioned problems, this utility model provides a flow durability testing system. The system includes an air compressor for generating pressurized gas, a heat dissipation device for cooling the gas generated by the air compressor, a test tube for mounting the product under test, and a silencer for noise reduction. The test tube includes a test inlet pipe and a test outlet pipe. The air compressor, heat dissipation device, test inlet pipe, test outlet pipe, back pressure valve, and silencer are connected sequentially. The test inlet pipe is installed at the inlet end of the product under test, and the test outlet pipe is installed at the outlet end of the product under test. The test inlet pipe is equipped with a pressure sensor for detecting pressure and a temperature and humidity sensor for detecting temperature and humidity. The test outlet pipe is equipped with a pressure sensor for detecting pressure, a temperature and humidity sensor for detecting temperature and humidity, and a flow sensor for detecting flow rate.

[0005] Furthermore, the air compressor is connected to the heat dissipation device via a connecting pipe.

[0006] Furthermore, the heat dissipation device is connected to the test air intake pipe via a connecting pipe.

[0007] Furthermore, the connecting pipe is a flexible hose, and both the test air inlet pipe and the test air outlet pipe are made of rigid materials.

[0008] Furthermore, both ends of the test inlet pipe and the test outlet pipe are equipped with flanges. A connecting plate is fixed to one end of the test inlet pipe and the connecting pipe. A pipe opening is provided on the connecting plate, and the connecting pipe is fixed to the pipe opening by fasteners.

[0009] Furthermore, the fastener is a cable tie or a clamp.

[0010] Furthermore, the air compressor, heat dissipation device, test air inlet pipe, test air outlet pipe, and back pressure valve are all mounted on the frame. The frame includes a first frame, a second frame, a third frame, and a fourth frame that are independent of each other. The air compressor is mounted on the first frame, the heat dissipation device is fixed on the second frame, the test air inlet pipe, the test air outlet pipe, and the back pressure valve are all fixed on the third frame, and the silencer is fixed on the fourth frame.

[0011] Furthermore, the first frame, second frame, third frame and fourth frame are all equipped with self-locking pulleys.

[0012] Furthermore, it also includes a differential pressure sensor for detecting the pressure difference between the inlet and outlet ends of the product under test, the differential pressure sensor being connected to both the test inlet pipe and the test outlet pipe.

[0013] Furthermore, the air compressor is a water-cooled air compressor, and the air compressor is also connected to a water chiller for supplying cooling water.

[0014] This utility model flow durability testing system uses a back pressure valve to simulate different working conditions, uses a pressure sensor to detect the pressure at the inlet and outlet of the product under test in real time, uses a temperature and humidity sensor to detect the temperature and humidity at the inlet and outlet of the product under test in real time, and uses a flow sensor to detect the flow rate at the inlet and outlet of the product under test in real time, enabling multi-dimensional testing of the product under test. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the flow endurance testing system of this utility model.

[0016] Figure 2 This is a gas flow path diagram of the flow durability testing system of this utility model.

[0017] Figure 3 This is a structural diagram of the connecting plate.

[0018] The meanings of the labels in the attached diagram are as follows:

[0019] Frame 1, First frame 11, Second frame 12, Third frame 13, Fourth frame 14, Fixing frame 15, Mounting frame 16, Self-locking pulley 17, Air compressor 2, Water chiller 3, Heat dissipation device 4, Connecting pipe 50, Test air inlet pipe 51, Test air outlet pipe 52, Connecting plate 53, Pipe port 531, Differential pressure sensor 61, Temperature and humidity sensor 62, Pressure sensor 63, Flow sensor 64, Back pressure valve 7, Silencer 8, Product under test 9. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, a preferred embodiment of the flow durability testing system of this utility model includes a frame 1, an air compressor 2, a water chiller 3, a heat dissipation device 4, a test tube, a differential pressure sensor 61, a temperature and humidity sensor 62, a pressure sensor 63, a flow sensor 64, a back pressure valve 7, and a silencer 8. The air compressor 2 is used to generate pressurized gas. The air compressor 2 is a water-cooled type. The water chiller 3 is connected to the air compressor 2 via a pipe. The water chiller 3 supplies cooling water to the air compressor 2 and simultaneously cools the cooling water after absorbing heat from the air compressor 2, thereby achieving the purpose of cooling the air compressor 2. The output end of the air compressor 2 is connected to the input end of the heat dissipation device 4 via a connecting pipe 50. The heat dissipation device 4 is used to dissipate heat from the gas generated by the air compressor 2. The heat dissipation device 4 typically uses an air-cooled heat exchanger, employing conventional equipment to reduce costs. The heat dissipation device 4 is detachably connected to the test tube, and the test tube is connected to the silencer 8 via the back pressure valve 7.

[0022] Specifically, the test tube includes a test inlet pipe 51 and a test outlet pipe 52. The output end of the heat dissipation device 4 is connected to the test inlet pipe 51 via a connecting pipe 50. The pressure sensor 63 and the temperature and humidity sensor 62 are both installed on the test inlet pipe 51. The test inlet pipe 51 is connected to the air inlet end of the product under test 9. The test inlet pipe 51 is used to introduce gas into the product under test 9. The pressure sensor 63 is used to detect the air pressure inside the test inlet pipe 51 so as to understand the pressure at the air inlet end of the product under test 9 in real time. The temperature and humidity sensor 62 is used to detect the temperature and humidity inside the test inlet pipe 51 so as to understand the temperature and humidity of the product under test 9 in real time, thereby understanding the usage of the product under test 9 under the given temperature and humidity. The test outlet pipe 52 is connected to the outlet end of the product under test 9. The test outlet pipe 52 is equipped with a pressure sensor 63, a temperature and humidity sensor 62, and a flow sensor 64. The pressure sensor 63 is used to detect the air pressure in the test outlet pipe 52 to understand the pressure at the outlet end of the product under test 9 in real time. It also uses the pressure difference between the test inlet pipe 51 and the test outlet pipe 52 to determine the pressure difference after the gas passes through the product under test 9. The temperature and humidity sensor 62 is used to detect the temperature and humidity in the test outlet pipe 52 to understand the temperature and humidity of the gas passing through the product under test 9 in real time. This allows for understanding the usage of the product under test 9 under these temperature and humidity conditions. It also uses the temperature and humidity differences before and after the product under test to determine whether the product under test 9 will affect the temperature and humidity. The flow sensor 64 is located between the back pressure valve 7 and the product under test 9. The flow sensor 64 is used to detect the gas flow rate after passing through the product under test 9 to understand whether the gas flow rate after passing through the product under test 9 meets the corresponding requirements in real time. The differential pressure sensor 61 is connected to both the test inlet pipe 51 and the test outlet pipe 52 to detect the pressure difference between them, thereby achieving the detection of the pressure difference before and after the tested product 9. This dual protection ensures the accuracy of the pressure difference detection before and after the tested product 9. The back pressure valve 7 typically has its own flange and pipe, so it is fixed to the test outlet pipe 52, and the silencer 8 is fixed to the back pressure valve 7. The back pressure valve 7 is used to adjust the back pressure of the test outlet pipe 52 to simulate different working conditions, thereby testing the adaptability and stability of the tested product 9 under different back pressures. The silencer 8 is used to discharge gas and reduce noise during exhaust. The air compressor 2, the heat dissipation device 4, the test inlet pipe 51, the test outlet pipe 52, and the silencer 8 are all mounted on the frame 1. It should be noted that in this embodiment, the front end refers to the side through which the gas passes first, and the rear end refers to the side through which the gas passes last.

[0023] Both the test inlet pipe 51 and the test outlet pipe 52 are made of rigid pipes, which facilitates the installation of differential pressure sensor 61, temperature and humidity sensor 62, pressure sensor 63 and flow sensor 64. At the same time, it is also convenient to set flanges at the rear end of the test inlet pipe 51 and the front end of the test outlet pipe 52 to facilitate the installation of the product under test 9. It is also convenient to set flanges at the rear end of the test outlet pipe 52 to facilitate fixing with the flange of the back pressure valve 7.

[0024] The connecting pipe 50 connecting the test air intake pipe 51 to the output end of the heat dissipation device 4 is typically a flexible hose. Using a flexible hose to connect the heat dissipation device 4 and the test air intake pipe 51 allows for installation even if the heat dissipation device 4 and the test air intake pipe 51 are not on the same straight line, facilitating the connection and reducing the requirements for their installation positions. The front end of the test air intake pipe 51 is equipped with a flange, and the flexible hose is fixed to the connecting plate 53 with a pipe opening 531 using cable ties or clamps or other fasteners. The structure of the connecting plate 53 is as follows... Figure 3 As shown.

[0025] The connecting pipe 50 connecting the output end of the air compressor 2 and the input end of the heat dissipation device 4 is a flexible hose. The flexible hose is fixed to the output end of the air compressor 2 and the input end of the heat dissipation device 4 by cable ties or clamps or other fasteners. By using a flexible hose to connect the air compressor 2 and the heat dissipation device 4, it is possible to install the heat dissipation device 4 and the air compressor 2 even if they are not on the same straight line. This makes it easier to connect the heat dissipation device 4 and the air compressor 2 and reduces the requirements for the installation position of the heat dissipation device 4 and the air compressor 2.

[0026] The frame 1 includes four independent frames: a first frame 11, a second frame 12, a third frame 13, and a fourth frame 14. The air compressor 2 and the water chiller 3 are both mounted on the first frame 11, which is equipped with self-locking pulleys 17. These allow for easy movement of the water chiller 3 and the air compressor 2 when needed, and also provide stability during use. The heat dissipation device 4 is fixed to the second frame 12, which is also equipped with self-locking pulleys 17. This allows for movement of the heat dissipation device 4 when needed, and also provides stability during use. The test inlet pipe 51, the test outlet pipe 52, the differential pressure sensor 61, and the back pressure valve 7 are all fixed to the third frame 13, which is also equipped with self-locking pulleys 17. This allows for movement of the test inlet pipe 51, the test outlet pipe 52, the differential pressure sensor 61, and the back pressure valve 7 when needed, and also provides stability during use. The muffler 8 is fixed to the fourth frame 14, which is equipped with a self-locking pulley 17. This allows the muffler 8 to be moved when needed, while also fixing its position during use. Dividing the frame 1 into multiple independent frames facilitates the movement of corresponding components, enabling them to be moved to the maintenance station when repair or replacement is required.

[0027] The test intake pipe 51 is fixed to the third frame 13 by a fixing bracket 15, the test exhaust pipe 52 is fixed to the third frame 13 by a fixing bracket 15, and the back pressure valve 7 is fixed to the third frame 13 by a fixing bracket 15. The bracket on the test intake pipe 51 is located on the other side where the test intake pipe 51 connects to the differential pressure sensor 61 to avoid interference with the differential pressure sensor 61. A mounting bracket 16 is provided on the third frame 13, and the differential pressure sensor 61 is fixed to the mounting bracket 16.

[0028] During testing, the air compressor 2 starts to generate gas at a certain pressure. The generated gas enters the heat dissipation device 4 through the connecting pipe 50 for heat dissipation. The heat dissipation device 4 cools the gas to a predetermined temperature before discharging it. The gas is then sent to the test inlet pipe 51 through the connecting pipe 50. The pressure sensor 63 and the temperature and humidity sensor 62 detect the pressure, temperature and humidity in the test inlet pipe 51 in real time to reflect the pressure, temperature and humidity at the inlet end of the tested product 9. After passing through the tested product 9, the gas enters the test outlet pipe 52. The pressure sensor 63, the temperature and humidity sensor 62 and the flow sensor 64 detect the pressure, temperature, humidity and flow rate in the test outlet pipe 52 in real time to reflect the pressure, temperature, humidity and flow rate after passing through the tested product 9. At the same time, the differential pressure sensor 61 measures the pressure difference between the test inlet pipe 51 and the test outlet pipe 52 in real time to reflect the pressure difference between the inlet end and the outlet end of the tested product 9 in real time. Finally, the gas enters the silencer 8 and is discharged after passing through the back pressure valve 7. When different operating conditions need to be tested, the opening of the back pressure valve 7 is adjusted to adjust the back pressure in order to simulate different operating conditions.

[0029] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A flow endurance test system, characterized by: The utility model provides a kind of air compressor, heat dissipation device, test tube for installing product to be measured and muffler for producing gas with pressure, for the gas generated by air compressor, for the heat dissipation device, for the test tube including test air inlet pipe and test air outlet pipe, the air compressor, heat dissipation device, test air inlet pipe, test air outlet pipe, back pressure valve and muffler are sequentially connected, the test air inlet pipe is installed in the air inlet end of product to be measured, the test air outlet pipe is installed in the air outlet end of product to be measured, the test air inlet pipe is provided with pressure sensor for detecting pressure and temperature and humidity sensor for detecting temperature and humidity, the test air outlet pipe is provided with pressure sensor for detecting pressure, temperature and humidity sensor for detecting temperature and humidity and flow sensor for detecting flow.

2. The flow endurance test system of claim 1, wherein: The air compressor is connected with the heat dissipation device through a connecting pipe.

3. The flow endurance test system of claim 1, wherein: The heat dissipation device is connected with the test air inlet pipe through a connecting pipe.

4. The flow endurance test system of claim 2 or 3, wherein: The connecting pipe is a hose, and the test air inlet pipe and the test air outlet pipe are both hard pipes.

5. The flow endurance test system of claim 4, wherein: Both ends of the test air inlet pipe and the test air outlet pipe are provided with flanges, and the test air inlet pipe is fixed with a connecting disc at one end connected with the connecting pipe, and the connecting disc is provided with a pipe opening.

6. The flow endurance test system of claim 5, wherein: The fastener is a cable tie or a clamp.

7. The flow endurance test system of claim 4, wherein: The air compressor, the heat dissipation device, the test air inlet pipe, the test air outlet pipe and the back pressure valve are all installed on a rack, and the rack includes first, second, third and fourth frames which are independent of each other, the air compressor is installed on the first frame, the heat dissipation device is fixed on the second frame, the test air inlet pipe, the test air outlet pipe and the back pressure valve are all fixed on the third frame, and the muffler is fixed on the fourth frame.

8. The flow endurance test system of claim 7, wherein: The first, second, third and fourth frames are all installed with self-locking pulleys.

9. The flow endurance test system of claim 1, wherein: A differential pressure sensor for detecting the pressure difference between the air inlet end and the air outlet end of the product to be measured is also included, and the differential pressure sensor is connected with the test air inlet pipe and the test air outlet pipe simultaneously.

10. The flow endurance test system of claim 1, wherein: The air compressor is a water-cooled air compressor, and the air compressor is further connected with a water chiller for supplying cooling water.

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