CN207297311U - Test device and testboard bay - Google Patents

Abstract

The utility model discloses a test device and a test stand, which relate to the technical field of testing water pumps and water valves. The main purpose is to reduce the performance of the water pump and the test cost of the durability of the water pump and the water valve. The main technical solution of the utility model is: in the test device, the first pipeline includes the first main pipeline and a plurality of first branch pipelines connected with one end thereof, and the other end of the first main pipeline is connected with the inlet of the water tank; the second pipeline The pipeline includes a second main pipeline and a plurality of second branch pipelines connected to one end thereof, each first branch pipeline and each second branch pipeline are used to connect a measured water valve; one end of the third pipeline is connected to the outlet The other end of the third pipeline and the other end of the second main pipeline are used to connect the tested water pump; the first pressure sensor and the second pressure sensor are respectively set on the third pipeline and the second main pipeline, and the flow sensor is set on the The first main road. The utility model is mainly used for the performance test of the water pump and the durability test of the water pump and the water valve.

Description

Test fixtures and test benches

technical field

The utility model relates to the technical field of water pump and water valve testing, in particular to a testing device and a testing stand.

Background technique

Water pumps and water valves are essential components in water-cooled thermal management systems. The performance of water pumps and the durability of water pumps and water valves are important factors that affect the service life of thermal management systems.

In order to ensure the service life of the water-cooling thermal management system, before the actual selection of components, the performance of the water pump and whether the durability of the water pump and water valve can meet the requirements are usually tested. In the prior art, the performance test of the water pump and the durability test of the water pump and the water valve are carried out separately, that is, corresponding different test benches are built, and the performance and durability test of the water pump is carried out on one test bench. The durability test of the water valve is carried out on another test bench, and the cost is relatively high.

Utility model content

In view of this, the embodiment of the utility model provides a test device and a test bench, the main purpose of which is to reduce the test cost of the performance of the water pump and the durability of the water pump and the water valve.

In order to achieve the above object, the utility model mainly provides the following technical solutions:

On the one hand, the embodiment of the utility model provides a test device, including:

Water tank, first pipeline, second pipeline, third pipeline, first pressure sensor, second pressure sensor, flow sensor;

The water tank has an outlet and an inlet;

The first pipeline includes a first main pipeline and a plurality of first branch pipelines communicated with one end of the first main pipeline, and the other end of the first main pipeline communicates with the inlet;

The second pipeline includes a second main pipeline and a plurality of second branch pipelines communicating with one end of the second main pipeline, each of the first branch pipelines and each of the second branch pipelines is used for Connecting a water valve to be tested so that a plurality of water valves to be tested are connected in parallel;

One end of the third pipeline communicates with the outlet, and the other end of the third pipeline and the other end of the second main pipeline are used to connect the tested water pump;

The first pressure sensor is arranged on the third pipeline, the second pressure sensor is arranged on the second main pipeline, and the flow sensor is arranged on the first main pipeline.

Specifically, the other end of the second main pipeline is communicated with a plurality of third branch pipelines;

The third pipeline includes a third main pipeline and a plurality of fourth branch pipelines communicated with one end of the third main pipeline, and the other end of the third main pipeline communicates with the outlet;

Each of the third branch pipelines and each of the fourth branch pipelines is used to connect a tested water pump, so that a plurality of the tested water pumps are connected in parallel;

The first pressure sensor is arranged on the third main pipe.

Specifically, the third main pipeline has a first section, the length of the first section is equal to 15 times the inner diameter of the first section, and the first section is that the third main pipeline is close to the A section between one end of the fourth branch pipeline and the first pressure sensor;

The second main pipeline has a second section and a third section, the length of the second section is equal to 10 times the inner diameter of the second section, and the length of the third section is greater than or equal to 10 times the The inner diameter value of the third section, the second section is a section between the second main pipeline end close to the third branch pipeline and the second pressure sensor, the third section is the a section of the Second Main Main Road other than said second section;

The first main pipe has a fourth section, the length of the fourth section is equal to 20 times the inner diameter of the fourth section, and the fourth section is that the first main pipe is close to the first branch pipe A section between one end of the road and the flow sensor;

Wherein, the inner diameters of the first segment, the second segment, the third segment and the fourth segment are all equal.

Specifically, the third main pipe is made of rigid material.

Specifically, a first temperature sensor is provided in the water tank;

A second temperature sensor is arranged on the third main pipe.

Specifically, a third pressure sensor is arranged on the first main pipe.

Specifically, a pressure relief valve is provided on the first main pipe.

Specifically, the water tank is an open water tank.

On the other hand, the embodiment of the utility model also provides a test bench, which includes a test device, and the test device adopts the above test device.

By means of the above technical solution, the utility model test device and test bench have at least the following beneficial effects:

The test device provided by the embodiment of the utility model, through the setting of the water tank, the first pipeline, the second pipeline and the third pipeline, and various sensors, realizes when it is necessary to test the performance of the water pump and the durability of the water pump and the water valve. When, only need to connect the water pump under test to the other end of the third pipeline and the other end of the second main pipeline, and connect multiple water valves under test to each corresponding first branch pipeline and each second branch pipeline respectively. Between the pipelines, open all the tested water valves or one of the water valves to ensure the smooth flow of water in the pipeline, and then perform the performance test of the tested water valves; moreover, by controlling the opening or closing time of multiple tested water valves , so that multiple tested water valves will not be closed at the same time, so as to ensure the smooth flow of water in the pipeline, and the durability test of the tested water pump and multiple tested water valves can be carried out at the same time. Compared with the prior art, the technical solution provided by the embodiment of the utility model realizes the performance test of the water pump and the durability test of the water pump and the water valve by using one test device, and reduces the cost; at the same time, it also realizes The durability test of the tested water pump and the tested water valve can be carried out at the same time, and the durability test of a plurality of tested water valves can also be completed at one time, which effectively improves the work efficiency.

Description of drawings

Fig. 1 is a schematic structural diagram of a test device provided by an embodiment of the present invention.

Detailed ways

In order to further explain the technical means and effects that the utility model takes to achieve the predetermined utility model purpose, the specific implementation, structure and characteristics of the test device and test bench for the utility model application are described below in conjunction with the accompanying drawings and preferred embodiments. and its effects are described in detail. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

As shown in Figure 1, the utility model embodiment provides a test device, including a water tank 1, a first pipeline, a second pipeline, a third pipeline, a first pressure sensor 2, a second pressure sensor 3, a flow rate Sensor 4; wherein, the water tank 1 has an outlet 11 and an inlet 12, and is connected with the atmosphere; the first pipeline includes a first main pipeline 5 and a plurality of first branch pipelines 6 communicated with one end of the first main pipeline 5, the first The other end of the main pipeline 5 communicates with the inlet 12; the second pipeline includes a second main pipeline 7 and a plurality of second branch pipelines 8 communicated with one end of the second main pipeline 7, each first branch pipeline 6 and each second branch pipeline 8 The two branch pipelines 8 are used to connect a measured water valve 10 so that multiple measured water valves 10 are connected in parallel; one end of the third pipeline communicates with the outlet 11, and the other end of the third pipeline communicates with the second main pipeline 7 The other end is used to connect the tested water pump 20; the first pressure sensor 2 is set on the third pipeline, the second pressure sensor 3 is set on the second main pipeline 7, and the flow sensor 4 is set on the first main pipeline 5 .

In this test device, by designing the first pipeline and the second pipeline to include a main pipeline and a branch pipeline, a plurality of tested water valves 10 can be connected in parallel with each other and then connected in series with the tested water pump 20 in the loop, Arrow direction represents water flow direction among Fig. 1, and, be respectively provided with the first pressure sensor 2 and the second sensor that are used to measure the pressure value at both ends of tested water pump 20 on the 3rd pipeline and the 2nd main pipeline 7, and A flow sensor 4 for measuring the flow value in the circuit is arranged on a pipeline, so that the performance test of the tested water pump 20 and the durability test of the tested water pump 20 and the tested water valve 10 can be carried out by using the test device . Wherein, the first pressure sensor 2 and the second pressure sensor 3 can also be replaced by differential pressure gauges.

Specifically, when using the test device to test the performance of the tested water pump 20, first, all the tested water valves 10 can be opened to ensure the smooth flow of water in the pipeline, and then, by adjusting the water tank 1 inlet 12 And the pressure regulating valve at the outlet 11, and a certain number of different flow values in the circuit are obtained through the flow sensor 4, and the pressure difference at both ends of the measured water pump 20 is obtained under the corresponding flow values through the first pressure sensor 2 and the second pressure sensor 3 Finally, the Q-ΔP performance curve of the tested water pump 20 is made, and the judgment result of whether the performance of the tested water pump 20 meets the requirements is obtained through the Q-ΔP performance curve, and the test is completed.

When applying the test device to the durability test of the tested water pump 20 and the tested water valve 10 at the same time, the tested water pump 20 can be operated in a cycle of 60 seconds, which can include first running at a rated speed for 45 seconds, and then pausing 15 seconds, until the total running time reaches 500 hours. At the same time, multiple tested water valves 10 are opened continuously for 100 seconds, and then closed for 50 seconds, and alternately, until the number of times each tested water valve 10 is opened and closed reaches the preset number of times. (not less than 10,000 times), and, for two adjacent tested water valves 10, one of the tested water valves 10 can be opened first, and the other tested water valve 10 can be started after a delay of 75 seconds to ensure A plurality of tested water valves 10 will not be closed at the same time, so as to ensure the smooth flow of water in the pipeline, and then realize the simultaneous durability test of the tested water pump 20 and the tested water valve 10. After the test is over, by judging the tested water pump 20 Whether the bearing can rotate easily and smoothly, and whether the water seal is damaged or leaks, to judge whether the durability of the water pump 20 under test meets the requirements, and whether the water valve 10 under test can meet the air tightness and To judge whether the durability of the tested water valve 10 meets the requirements according to the requirements of internal leakage, the test is completed. It should be noted that an ordinary valve can also be used to replace one of the multiple parallel-connected water valves 10 to be tested, and by keeping the ordinary valve always open during the durability test, the water flow in the pipeline can be guaranteed. Unimpeded, thereby allowing a plurality of tested water valves 10 to be closed at the same time, it can also achieve the purpose of completing the durability test of the tested water valve 10 and the tested water pump 20 at the same time. In a specific implementation, the opening and closing time of the tested water valve 10 and the tested water pump 20 may be determined according to specific test requirements.

The test device provided by the embodiment of the utility model, through the setting of the water tank, the first pipeline, the second pipeline and the third pipeline, and various sensors, realizes when it is necessary to test the performance of the water pump and the durability of the water pump and the water valve. When, only need to connect the water pump under test to the other end of the third pipeline and the other end of the second main pipeline, and connect multiple water valves under test to each corresponding first branch pipeline and each second branch pipeline respectively. Between the pipelines, open all the water valves under test or one of the water valves to ensure the smooth flow of water in the pipeline, and the performance test of the water valves under test can be carried out; moreover, by controlling the opening or closing of multiple water valves under test Time, so that multiple tested water valves will not be closed at the same time, so as to ensure the smooth flow of water in the pipeline, and the durability test of the tested water pump and multiple tested water valves can be carried out at the same time. Compared with the prior art, the technical solution provided by the embodiment of the utility model realizes the performance test of the water pump and the durability test of the water pump and the water valve by using one test device, and reduces the cost; at the same time, it also realizes The durability test of the tested water pump and the tested water valve can be carried out at the same time, and the durability test of a plurality of tested water valves can also be completed at one time, which effectively improves the work efficiency.

In order to further improve work efficiency, referring to Fig. 1, a plurality of third branch pipelines 9 communicated with the other end of the second main pipeline 7; The fourth branch pipeline 14, the other end of the third main pipeline 13 communicates with the outlet 11; each third branch pipeline 9 and each fourth branch pipeline 14 are used to connect a tested water pump 20, so that multiple measured The water pumps 20 are connected in parallel; the first pressure sensor 2 is arranged on the third main pipeline 13 . By setting a plurality of third branch pipelines 9 communicating with it at the other end of the second main pipeline 7, and setting a plurality of fourth branch pipelines 14 communicating with it at one end of the third main pipeline 13, a plurality of water pumps under test are realized. 20 can be connected in parallel in the pipeline, so that the test test of multiple tested water pumps 20 can be completed in one test, which further improves the work efficiency. It should be noted that when using the test device to perform performance tests on multiple tested water pumps 20, it should be ensured that only one tested water pump 20 is in the working state in the circuit, so as to avoid easy The disadvantage of inaccurate flow and differential pressure values of each tested water pump 20 is that the performance curve of the corresponding tested water pump 20 can be accurately obtained, thereby accurately judging whether the performance of the tested water pump 20 meets the requirements.

In order to further accurately test whether the performance of the tested water pump 20 meets the requirements, referring to Fig. 1, the third main pipeline 13 has a first section, the length value of this first section is equal to the inner diameter value of the first section of 15 times, and the first section is The third main pipeline 13 is close to a section between an end of the fourth branch pipeline 14 and the first pressure sensor 2; the second main pipeline 7 has a second section and a third section, and the length value of the second section is equal to the second section of 10 times. The inner diameter value of the section, the length value of the third section is greater than or equal to the inner diameter value of the third section of 10 times, the second section is the distance between the second main pipeline 7 and the second pressure sensor 3 near one end of the third branch pipeline 9 One section, the third section is a section other than the second section on the second main pipe 7; the first main pipe 5 has a fourth section, the length value of the fourth section is equal to the internal diameter value of the fourth section of 20 times, the fourth section The section is a section between the end of the first main pipeline 5 close to the first branch pipeline 6 and the flow sensor 4; wherein, the inner diameters of the first section, the second section, the third section and the fourth section are all equal. By setting the distances between the first pressure sensor 2, the second pressure sensor 3 and the flow sensor 4 and the tested water valve 10 and the tested water pump 20 to the above-mentioned distance, the pulse-to-sensor accuracy of the water flow in the test circuit is reduced , thereby improving the accuracy of the test data, and further ensuring the accuracy of the performance test of the water pump 20 under test.

In order to ensure that the flow rate of the water pump 20 under test can be kept stable when it works in a large flow condition, the third main pipeline 13 can be made of a material with a certain rigidity, so that the flow rate of the inlet pressure measuring section of the water pump 20 under test can be stabilized. Moreover, the third main pipe 13 should also have sufficient burial depth, so as to ensure that the flow rate of the tested water pump 20 can be kept stable when the tested water pump 20 works in a large flow condition.

Specifically, referring to Fig. 1, a first temperature sensor can also be arranged in the water tank 1; a second temperature sensor 15 is arranged on the third main pipeline 13, thereby realizing that when the water in the water tank 1 is heated, the first temperature sensor can be passed A temperature sensor monitors its temperature, and the temperature of the flow flowing into the tested water pump 20 is monitored by the second temperature sensor 15 , so as to test the thermal shock characteristics of the tested water pump 20 .

Specifically, referring to Fig. 1, a third pressure sensor 16 can also be installed on the first main pipeline 5 to monitor the pressure loss in the circuit. The performance test results have an impact, further ensuring the accuracy of the performance test of the water pump 20 under test. Wherein, the distance between the third pressure sensor 16 and the end of the first pipeline near the first branch pipeline 6 can be 10 times the inner diameter value of this section of pipeline, so as to ensure the accuracy of the third pressure sensor 16, thereby ensuring its measurement data accuracy.

In order to ensure the use safety of the test device, referring to FIG. 1 , a pressure relief valve 17 can also be provided on the first main pipeline 5 to realize automatic pressure relief when the pressure in the pipeline is high.

Specifically, the water tank 1 may be an open water tank.

The embodiment of the utility model also provides a test bench, including a test device, and the test device adopts the above-mentioned test device.

The test stand provided by the embodiment of the utility model includes a test device, and the test device realizes when the performance of the water pump needs to be tested through the setting of the water tank, the first pipeline, the second pipeline and the third pipeline, and various sensors. As well as the durability of water pumps and water valves, it is only necessary to connect the tested water pump to the other end of the third pipeline and the other end of the second main pipeline, and connect multiple tested water valves to each corresponding first Between the branch pipeline and each second branch pipeline, open all or one of the water valves under test to ensure the smooth flow of water in the pipeline, and the performance test of the water valve under test can be carried out; and, by controlling multiple The time for the water valve under test to open or close, so that multiple water valves under test will not be closed at the same time, so as to ensure the smooth flow of water in the pipeline, which can realize the durability test of the water pump under test and multiple water valves under test at the same time . Compared with the prior art, the technical solution provided by the embodiment of the utility model realizes the performance test of the water pump and the durability test of the water pump and the water valve by using one test device, and reduces the cost; at the same time, it also realizes The durability test of the tested water pump and the tested water valve can be carried out at the same time, and the durability test of a plurality of tested water valves can also be completed at one time, which effectively improves the work efficiency.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (8)

1. A testing device, characterized in that, comprising: Water tank, first pipeline, second pipeline, third pipeline, first pressure sensor, second pressure sensor, flow sensor; The water tank has an outlet and an inlet; The first pipeline includes a first main pipeline and a plurality of first branch pipelines communicated with one end of the first main pipeline, and the other end of the first main pipeline communicates with the inlet; The second pipeline includes a second main pipeline and a plurality of second branch pipelines communicating with one end of the second main pipeline, each of the first branch pipelines and each of the second branch pipelines is used for Connecting a water valve to be tested so that a plurality of water valves to be tested are connected in parallel; One end of the third pipeline communicates with the outlet, and the other end of the third pipeline and the other end of the second main pipeline are used to connect the tested water pump; The first pressure sensor is arranged on the third pipeline, the second pressure sensor is arranged on the second main pipeline, and the flow sensor is arranged on the first main pipeline. 2. The test device according to claim 1, characterized in that, The other end of the second main pipeline is connected with a plurality of third branch pipelines; The third pipeline includes a third main pipeline and a plurality of fourth branch pipelines communicated with one end of the third main pipeline, and the other end of the third main pipeline communicates with the outlet; Each of the third branch pipelines and each of the fourth branch pipelines is used to connect a tested water pump, so that a plurality of the tested water pumps are connected in parallel; The first pressure sensor is arranged on the third main pipe. 3. The test device according to claim 2, characterized in that, The third main pipeline has a first section, the length of the first section is equal to 15 times the inner diameter of the first section, and the first section is that the third main pipeline is close to the fourth branch pipe a section between one end of the road and the first pressure sensor; The second main pipeline has a second section and a third section, the length of the second section is equal to 10 times the inner diameter of the second section, and the length of the third section is greater than or equal to 10 times the The inner diameter value of the third section, the second section is a section between the second main pipeline end close to the third branch pipeline and the second pressure sensor, the third section is the a section of the Second Main Main Road other than said second section; The first main pipe has a fourth section, the length of the fourth section is equal to 20 times the inner diameter of the fourth section, and the fourth section is that the first main pipe is close to the first branch pipe A section between one end of the road and the flow sensor; Wherein, the inner diameters of the first segment, the second segment, the third segment and the fourth segment are all equal. 4. The testing device according to claim 2 or 3, characterized in that, The water tank is provided with a first temperature sensor; A second temperature sensor is arranged on the third main pipe. 5. The test device according to any one of claims 1 to 3, characterized in that, A third pressure sensor is arranged on the first main pipe. 6. The test device according to any one of claims 1 to 3, characterized in that, A pressure relief valve is arranged on the first main pipe. 7. The test device according to any one of claims 1 to 3, characterized in that, The water tank is an open water tank. 8. A test bench, comprising a test device, characterized in that, The test device is the test device according to any one of claims 1-7.