Flow resistance testing machine

Abstract

The utility model belongs to the field of machine manufacturing, and particularly relates to a flow resistance testing machine which comprises a water storage device used for storing cooling water; the cooling water heating assembly is used for heating cooling water; the first circulating pipeline is connected with the water storage device, a mounting position is arranged on the first circulating pipeline, an inlet end and an outlet end are arranged on the mounting position, the inlet end is connected with an inlet of the water cooling system, and the outlet end is connected with an outlet of the water cooling system; the differential pressure sensor comprises two sensing ends, one sensing end is connected to the inlet end, and the other sensing end is connected to the outlet end; in the application, accurate simulation of the temperature state of the cooling water is realized, the difference of test results caused by the difference between the temperature of the simulated water and the temperature of the actual cooling water is avoided, and the test accuracy of the flow resistance testing machine is further ensured.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical manufacturing, and in particular relates to a flow resistance testing machine. Background Art

[0002] A water cooling system refers to a system that uses water or other liquids as a heat transfer medium to dissipate heat from hardware through a series of components. During the design and installation of a water cooling system, it is necessary to connect the water cooling system to a flow resistance testing machine to conduct a pressure drop test on the water cooling system to evaluate the fluid dynamics performance and heat dissipation efficiency of the water cooling system.

[0003] However, in actual work, after the water cooling system transports cooling water to the hardware for water cooling, the cooling water is heated and then transported back to the water cooling system. However, the existing flow resistance testing machine directly simulates cooling water with room temperature water and transports it to the water cooling system to perform a pressure drop test on the water cooling system. It is difficult to simulate the state of cooling water under actual use. However, factors such as the temperature of the cooling water will directly affect the results of the pressure drop test, thereby causing the test results of the flow resistance testing machine to be inaccurate. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a flow resistance testing machine, aiming to solve the problem of inaccurate test results of existing flow resistance testing machines.

[0005] The embodiment of the utility model is implemented as follows: a flow resistance test machine is provided, which is connected to a water cooling system, and the flow resistance test machine includes:

[0006] A water reservoir for storing cooling water;

[0007] A cooling water heating component is used to heat the cooling water so that the temperature of the cooling water reaches a preset temperature;

[0008] A first circulation pipeline is connected to the water reservoir, and a mounting position is provided on the first circulation pipeline, an inlet end and an outlet end are provided on the mounting position, the inlet end is connected to the inlet end of the water cooling system, and the outlet end is connected to the outlet end of the water cooling system;

[0009] The differential pressure sensor includes two sensing ends, one sensing end is connected to the inlet end, and the other sensing end is connected to the outlet end; a first water pump is provided on the first circulation pipeline. When the temperature of the cooling water reaches a preset temperature, the first water pump is started to allow the cooling water to enter the water cooling system through the first circulation pipeline. The differential pressure sensor performs a pressure drop test on the water cooling system. After the test is completed, the cooling water is returned to the water reservoir through the first circulation pipeline.

[0010] Preferably, the cooling water heating assembly comprises:

[0011] A heater, arranged on the water reservoir, for heating the cooling water in the water reservoir;

[0012] A temperature sensor, a cooling water heating component, is used to detect the temperature of the water in the water reservoir;

[0013] The circulation mechanism is arranged on the water reservoir and is used to circulate the cooling water during the process of heating the cooling water.

[0014] Preferably, the circulation mechanism comprises:

[0015] A second circulation pipeline, one end of which is connected to the bottom of the water reservoir, and the other end of which is connected to the top of the side of the water reservoir;

[0016] A second water pump is arranged on the second circulation pipeline, and is used to draw cooling water from one end of the second circulation pipeline located at the bottom of the water reservoir into the second circulation pipeline, and discharge the cooling water from the other end of the second circulation pipeline, so that the water of different temperatures in the water reservoir is evenly mixed;

[0017] The refrigerator is arranged in the second selected pipeline and is used for adjusting the temperature of the cooling water when the temperature of the cooling water is too high.

[0018] Preferably, the water reservoir also includes:

[0019] A sewage valve is arranged at the bottom of the water reservoir and is used to discharge sewage in the water reservoir;

[0020] The water replenishment port is connected to an external water supply mechanism and is used to replenish water to the water reservoir.

[0021] Preferably, the first circulation pipeline also includes:

[0022] A pressure sensor, used for monitoring the pressure in the first circulation pipeline;

[0023] A flow meter, used for monitoring the flow in the first circulation pipeline;

[0024] The first circulation pump is a variable frequency centrifugal pump, which is used to pump cooling water with different pumping forces.

[0025] Preferably, a plurality of installation positions are arranged on the first circulation pipeline, each installation position is connected to a corresponding water cooling system, and a pressure difference sensor is arranged corresponding to each installation position.

[0026] Preferably, the flow resistance testing machine further comprises:

[0027] The air conduction component is connected to the first circulation pipeline and is used to transmit air to the first circulation pipeline to dry the first circulation pipeline and the water cooling system.

[0028] Preferably, the air conduction component comprises:

[0029] An air pipeline, one end of which is connected to an external air compressor, and the other end of which is connected to the first circulation pipeline;

[0030] An air heater is arranged in the air pipeline and is used to heat the air in the air pipeline;

[0031] A pressure-stabilizing valve is provided in the air pipeline to maintain a stable pressure of the air in the air pipeline;

[0032] The air valve is arranged in the air pipeline. When the user opens the air valve, the air pipeline introduces air into the first circulation pipeline. When the user closes the air valve, the introduction of air into the first circulation pipeline is stopped.

[0033] A flow resistance testing machine provided by an embodiment of the utility model comprises: a water reservoir for storing cooling water; a cooling water heating component for heating the cooling water so that the temperature of the cooling water reaches a preset temperature; a first circulation pipeline connected to the water reservoir, and an installation position is provided on the first circulation pipeline, and an inlet end and an outlet end are provided on the installation position, the inlet end is connected to the inlet of a water cooling system, and the outlet end is connected to the outlet of the water cooling system; a differential pressure sensor comprises two sensing ends, one sensing end is connected to the inlet end, and the other sensing end is connected to the outlet end; a first water pump is provided on the first circulation pipeline, when the temperature of the cooling water reaches the preset temperature, the first water pump is started to allow the cooling water to enter the water cooling system through the first circulation pipeline, and the differential pressure sensor performs a pressure drop test on the water cooling system, and after the test is completed, the cooling water is returned to the water reservoir through the first circulation pipeline; in the present application, accurate simulation of the cooling water temperature state is achieved, and the difference in test results caused by the difference between the temperature of the simulated water and the temperature of the actual cooling water is avoided, thereby ensuring the test accuracy of the flow resistance testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the pipeline arrangement of a flow resistance testing machine provided in an embodiment of the utility model;

[0035] Figure 2 A schematic diagram of a water reservoir of a flow resistance testing machine provided in an embodiment of the utility model;

[0036] In the attached figure: 1. Water reservoir; 11. Heater; 12. Temperature sensor; 13. Second circulation pipeline; 14. Second water pump; 15. Refrigerator; 16. Drain valve; 17. Water replenishment port; 2. First circulation pipeline; 21. Installation position; 22. First water pump; 23. Pressure sensor; 24. Flow meter; 3. Pressure difference sensor; 4. Air pipeline; 5. Air heater; 6. Pressure regulating valve; 7. Air valve; 8. PLC controller. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0038] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0039] like Figure 1 As shown, a flow resistance test machine provided by an embodiment of the utility model is connected to a water cooling system, and the flow resistance test machine includes:

[0040] A water reservoir 1, used for storing cooling water;

[0041] A cooling water heating component is used to heat the cooling water so that the temperature of the cooling water reaches a preset temperature;

[0042] A first circulation pipeline 2 is connected to the water reservoir 1, and a mounting position 21 is provided on the first circulation pipeline 2. The mounting position 21 is provided with an inlet end and an outlet end, the inlet end is connected to the inlet of the water cooling system, and the outlet end is connected to the outlet of the water cooling system;

[0043] The pressure difference sensor 3 includes two sensing ends, one sensing end is connected to the inlet end, and the other sensing end is connected to the outlet end; a first water pump 22 is provided on the first circulation pipeline 2. When the temperature of the cooling water reaches a preset temperature, the first water pump 22 is started to allow the cooling water to enter the water cooling system through the first circulation pipeline 2. The pressure difference sensor 3 performs a pressure drop test on the water cooling system. After the test is completed, the cooling water is returned to the water reservoir 1 through the first circulation pipeline 2.

[0044] In this embodiment, the pipe cleaning machine is connected to a PLC (Programmable Logic Controller) controller, and the user can control the water pump, valve, heater 11 and other components in the flow resistance tester through the PLC controller; the preset temperature can be determined according to the main application scope of the water cooling system. For example, the water cooling system is mainly used in household appliances such as computers and televisions. In reality, the temperature of the coolant after passing through these household appliances is approximately 50 degrees to 60 degrees, and the set temperature can be set to a value between 50 degrees and 60 degrees. The specific value is not limited here; after the water cooling system is installed at the installation position 21, the first circulation pipeline 2 is connected to the internal pipeline of the water cooling system, so that the cooling water can circulate in the water reservoir 1, the first circulation pipeline 2 and the water cooling system under the drive of the first water pump 22, and the water cooling system is tested for pressure drop through the set pressure difference sensor 3; in this application, accurate simulation of the cooling water temperature state is achieved, avoiding the difference in test results caused by the difference in the temperature of the simulated water and the actual cooling water, thereby ensuring the test accuracy of the flow resistance tester.

[0045] like Figure 2 As shown, as a preferred embodiment, the cooling water heating component includes:

[0046] The heater 11 is arranged on the water reservoir 1 and is used to heat the cooling water in the water reservoir 1;

[0047] The temperature sensor 12, a cooling water heating component, is used to detect the temperature of the water in the water reservoir 1;

[0048] The circulation mechanism is arranged on the water reservoir 1 and is used to circulate the cooling water during the process of heating the cooling water.

[0049] The circulation mechanism includes:

[0050] A second circulation pipeline 13, one end of the second circulation pipeline 13 is connected to the bottom of the water reservoir 1, and the other end is connected to the top of the side of the water reservoir 1;

[0051] A second water pump 14 is provided on the second circulation pipeline 13, and is used to pump cooling water from one end of the second circulation pipeline 13 located at the bottom of the water reservoir into the second circulation pipeline 13, and discharge the cooling water from the other end of the second circulation pipeline 13, so that the water of different temperatures in the water reservoir 1 is evenly mixed;

[0052] The refrigerator 15 is arranged in the second selected pipeline, and is used to adjust the temperature of the cooling water when the temperature of the cooling water is too high.

[0053] In this embodiment, the water in the water reservoir 1 can be heated by the heater 11, and the temperature of the water in the water reservoir 1 can be measured by the temperature sensor 12. Since the heater 11 can only heat the cooling water at its location, in order to make the water in the entire water reservoir 1 reach the preset temperature, the water in the lower part of the water reservoir 1 needs to be continuously circulated and transported to the upper part of the water reservoir 1 through the circulation mechanism, that is, the cooling water is fully mixed so that the temperature can be evenly distributed. At this time, the temperature detected by the temperature sensor 12 can also represent the temperature of the cooling water in the entire water reservoir 1; furthermore, in some cases, the detected temperature is higher than the preset temperature and needs to be adjusted, then the refrigerator 15 in the circulation mechanism can be started to reduce the water temperature of the circulating water, thereby reducing the water temperature of the water in the entire water reservoir 1, thereby realizing the adjustment of the refrigerant.

[0054] As a preferred embodiment, the water reservoir 1 also includes:

[0055] A sewage valve 16 is provided at the bottom of the water reservoir 1 and is used to discharge sewage in the water reservoir 1;

[0056] The water replenishment port 17 is connected to an external water supply mechanism and is used to replenish water to the water reservoir 1 .

[0057] In this embodiment, pollutants will be generated after the cooling water is recycled for many times. The pollutants will be deposited at the bottom of the water reservoir 1. After the drain valve 16 is opened, the sediment is discharged from the water reservoir 1. In the process of discharging the pollutants, part of the cooling water will inevitably be discharged. At this time, the valve on the water replenishment port 17 can be opened to replenish the water reservoir 1, thereby realizing the renewal of the cooling water.

[0058] As a preferred embodiment, the first circulation pipeline 2 also includes:

[0059] A pressure sensor 23, used to monitor the pressure in the first circulation pipeline 2;

[0060] A flow meter 24, used to monitor the flow in the first circulation pipeline 2;

[0061] The first circulation pump is a variable frequency centrifugal pump, which is used to pump cooling water with different pumping forces.

[0062] In this embodiment, the variable frequency centrifugal pump can change the pumping force to pump the cooling water to achieve pressure drop testing of the water cooling system under different intensity conditions. Furthermore, through the setting of the pressure sensor 23 and the flow meter 24, the maximum pressure and maximum water flow in the pipeline can be monitored in real time, so that the user can adjust the corresponding test parameters according to the water pressure and flow in time.

[0063] As a preferred embodiment, a plurality of installation positions 21 are provided on the first circulation pipeline 2 , each installation position 21 is connected to a corresponding water cooling system, and a differential pressure sensor 3 is provided corresponding to each installation position 21 .

[0064] In this embodiment, by providing a plurality of installation positions 21, a plurality of water cooling systems can be installed at the same time to perform a pressure drop test, which can significantly improve the test efficiency.

[0065] As a preferred embodiment, the flow resistance testing machine further includes:

[0066] The air conduction component is connected to the first circulation pipeline 2 and is used to transmit air to the first circulation pipeline 2 to dry the first circulation pipeline 2 and the water cooling system.

[0067] The air conduction component comprises:

[0068] An air pipeline 4, one end of which is connected to an external air compressor, and the other end of which is connected to the first circulation pipeline 2;

[0069] An air heater 511 is provided in the air pipeline 4 and is used to heat the air in the air pipeline 4;

[0070] A pressure-stabilizing valve 6 is provided in the air pipeline 4 and is used to maintain a stable pressure of the air in the air pipeline 4;

[0071] The air valve 7 is arranged in the air pipeline 4. When the user opens the air valve 7, the air pipeline 4 introduces air into the first circulation pipeline 2. When the user closes the air valve 7, the introduction of air into the first circulation pipeline 2 is stopped.

[0072] In this embodiment, in this embodiment, the air valve 7 can be a solenoid valve, a ball valve or other types of valves, which are not limited here; the pressure-stabilizing valve 6 can stabilize and adjust the pressure of the fluid in the pipeline to ensure that a stable fluid output pressure is maintained within a set working pressure range; in this embodiment, after the test is completed, hot air can be introduced into the first circulation pipeline 2 and the water cooling system to dry the first circulation pipeline 2 and the water cooling system to avoid corrosion and increase the service life of the device.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow resistance testing machine, connected to a water cooling system, characterized in that: The flow resistance testing machine comprises: A water reservoir for storing cooling water; A cooling water heating component is used to heat the cooling water so that the temperature of the cooling water reaches a preset temperature; A first circulation pipeline is connected to the water reservoir, and a mounting position is provided on the first circulation pipeline, an inlet end and an outlet end are provided on the mounting position, the inlet end is connected to the inlet end of the water cooling system, and the outlet end is connected to the outlet end of the water cooling system; The differential pressure sensor includes two sensing ends, one sensing end is connected to the inlet end, and the other sensing end is connected to the outlet end; a first water pump is provided on the first circulation pipeline. When the temperature of the cooling water reaches a preset temperature, the first water pump is started to allow the cooling water to enter the water cooling system through the first circulation pipeline. The differential pressure sensor performs a pressure drop test on the water cooling system. After the test is completed, the cooling water is returned to the water reservoir through the first circulation pipeline.

2. The flow resistance testing machine according to claim 1, characterized in that: The cooling water heating components include: A heater, arranged on the water reservoir, for heating the cooling water in the water reservoir; A temperature sensor, a cooling water heating component, is used to detect the temperature of the water in the water reservoir; The circulation mechanism is arranged on the water reservoir and is used to circulate the cooling water during the process of heating the cooling water.

3. The flow resistance testing machine according to claim 2, characterized in that: The circulation mechanism includes: A second circulation pipeline, one end of which is connected to the bottom of the water reservoir, and the other end of which is connected to the top of the side of the water reservoir; a second water pump, arranged on the second circulation pipeline, for pumping cooling water from one end of the second circulation pipeline located at the bottom of the water reservoir into the second circulation pipeline, and discharging cooling water from the other end of the second circulation pipeline, so that water of different temperatures in the water reservoir is evenly mixed; The refrigerator is arranged in the second selected pipeline and is used for adjusting the temperature of the cooling water when the temperature of the cooling water is too high.

4. The flow resistance testing machine according to claim 1, characterized in that: The water reservoir also includes: A sewage valve is arranged at the bottom of the water reservoir and is used to discharge sewage in the water reservoir; The water replenishment port is connected to an external water supply mechanism and is used to replenish water to the water reservoir.

5. The flow resistance testing machine according to claim 1, characterized in that: The first circulation pipeline also includes: A pressure sensor, used for monitoring the pressure in the first circulation pipeline; A flow meter, used for monitoring the flow in the first circulation pipeline; The first circulation pump is a variable frequency centrifugal pump, which is used to pump cooling water with different pumping forces.

6. The flow resistance testing machine according to claim 1, characterized in that: A plurality of installation positions are arranged on the first circulation pipeline, each installation position is connected to a water cooling system, and a differential pressure sensor is arranged corresponding to each installation position.

7. The flow resistance testing machine according to claim 1, characterized in that: The flow resistance testing machine also includes: The air conduction component is connected to the first circulation pipeline and is used to transmit air to the first circulation pipeline to dry the first circulation pipeline and the water cooling system.

8. The flow resistance testing machine according to claim 7, characterized in that: The air conduction component comprises: An air pipeline, one end of which is connected to an external air compressor, and the other end of which is connected to the first circulation pipeline; An air heater is arranged in the air pipeline and is used to heat the air in the air pipeline; A pressure-stabilizing valve is provided in the air pipeline to maintain a stable pressure of the air in the air pipeline; The air valve is arranged in the air pipeline. When the user opens the air valve, the air pipeline introduces air into the first circulation pipeline. When the user closes the air valve, the introduction of air into the first circulation pipeline is stopped.

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