Pump testing system

Abstract

The utility model relates to the technical field of pumps, in particular to a pump testing system which comprises a liquid storage tank and a pump testing device. An inlet of the water outlet pipe communicates with the liquid storage tank, an outlet of the water outlet pipe is used for being connected with an inlet of a pump, and a first valve is arranged on the water outlet pipe; an inlet of the water return pipe is used for being connected with an outlet of the pump, an outlet of the water return pipe communicates with the liquid storage tank, and a second valve is arranged on the water return pipe; the multiple first temperature sensors are arranged in the water outlet pipe and are arranged at intervals in the extending direction of the water outlet pipe; the multiple second temperature sensors are arranged in the water return pipe and are arranged at intervals in the extending direction of the water return pipe; the third temperature sensor is used for being arranged on the pump; and the data acquisition and analysis module is coupled with the first temperature sensor, the second temperature sensor and the third temperature sensor.

Description

Technical Field

[0001] The present application relates to the field of pump technology, and in particular to a pump testing system. Background Art

[0002] Generally, the pipeline between the heat source and the liquid storage tank is called the primary line, and the circulating pump on the primary line is called the primary pump. The primary pump drives the water in the primary line to circulate between the heat source and the liquid storage tank; the pipeline between the liquid storage tank and the terminal is called the secondary line, and the circulating pump on the secondary line is called the secondary pump. The secondary pump drives the water in the secondary line to circulate between the liquid storage tank and the terminal.

[0003] Taking the air-conditioning system as an example, the end is usually a fan coil unit. When the fan coil unit is out of use, the valve on the secondary line will be closed, and the secondary pump will be in a waterless circulation state, resulting in continuous heat generation and eventually damage to the secondary pump.

[0004] The existing technology lacks a system for testing the temperature of the pump, and it is impossible to know the reliability of the secondary pump in a water-free circulation state. Utility Model Content

[0005] The present application provides a pump testing system to solve the problem in the prior art that there is a lack of a system for temperature testing the pump and the reliability of the secondary pump in a water-free circulation state cannot be known.

[0006] To achieve the above objectives, the present application provides a pump testing system, which includes:

[0007] Liquid storage tank;

[0008] a water outlet pipe, wherein the inlet of the water outlet pipe is connected to the liquid storage tank, the outlet of the water outlet pipe is used to connect to the inlet of the pump, and a first valve is provided on the water outlet pipe;

[0009] a return pipe, the inlet of the return pipe being connected to the outlet of the pump, the outlet of the return pipe being in communication with the liquid storage tank, and a second valve being provided on the return pipe;

[0010] a plurality of first temperature sensors, the plurality of first temperature sensors being disposed inside the water outlet pipe and spaced apart along an extending direction of the water outlet pipe;

[0011] a plurality of second temperature sensors, the plurality of second temperature sensors being arranged inside the water return pipe and spaced apart along an extending direction of the water return pipe;

[0012] a third temperature sensor, the third temperature sensor being configured to be disposed on the pump; and

[0013] A data acquisition and analysis module is coupled to the first temperature sensor, the second temperature sensor, and the third temperature sensor.

[0014] Compared with the prior art, this application has at least the following beneficial effects:

[0015] When both the first valve and the second valve are closed, the pump is in a waterless circulation state. At this time, the water temperature in the outlet pipe can be detected by the first temperature sensor, the water temperature in the return pipe can be detected by the second temperature sensor, and the temperature of the pump can be detected by the third temperature sensor, thereby recording the corresponding temperature information in the data acquisition and analysis module to verify the reliability of the pump in the waterless circulation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the pump testing system in Example 1 is shown.

[0017] Figure 2 A schematic diagram of the pump testing system in Example 2 is shown, wherein the first opening and the second opening of the first valve are connected, and the first opening and the second opening of the second valve are connected.

[0018] Figure 3 A schematic diagram of the pump testing system in Example 2 is shown, wherein the first opening and the third opening of the first valve are connected, and the first opening and the third opening of the second valve are connected.

[0019] Reference numerals:

[0020] 1. Liquid storage tank; 11. Exhaust valve; 12. Safety valve;

[0021] 2. Water outlet pipe; 21. First valve; 211. First opening; 212. Second opening; 213. Third opening; 22. First water outlet section; 23. Second water outlet section; 24. Third water outlet section;

[0022] 3. Return pipe; 31. Second valve; 311. Opening 1; 312. Opening 2; 313. Opening 3; 32. First return section; 33. Second return section; 34. Third return section; 35. Flow meter;

[0023] 4. First temperature sensor;

[0024] 5. Second temperature sensor;

[0025] 6. Data collection and analysis module;

[0026] 7. Pump. DETAILED DESCRIPTION

[0027] The technical solution of the present application will be further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present application and are not intended to limit the present application. It should also be noted that, for ease of description, the accompanying drawings only show portions relevant to the present application, not all of them.

[0028] Some directional words are defined in this application. Unless otherwise stated, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used for ease of understanding and therefore do not constitute a limitation on the scope of protection of this application.

[0029] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0031] Example 1

[0032] like Figure 1 As shown, Example 1 provides a pump testing system, which includes a liquid storage tank 1, a water outlet pipe 2, a return pipe 3, multiple first temperature sensors 4, multiple second temperature sensors 5, a third temperature sensor (not shown) and a data acquisition and analysis module 6.

[0033] The liquid storage tank 1 is used to store liquid, such as water. An exhaust valve 11 and / or a safety valve 12 may be provided on the top of the liquid storage tank 1 .

[0034] The inlet of the water outlet pipe 2 is communicated with the liquid storage tank 1, and the outlet of the water outlet pipe 2 is used to connect to the inlet of the pump 7. A first valve 21 is provided on the water outlet pipe 2. When the first valve 21 is opened, the liquid in the liquid storage tank 1 can flow into the pump 7 through the water outlet pipe 2.

[0035] The inlet of the return pipe 3 is connected to the outlet of the pump 7, and the outlet of the return pipe 3 is connected to the liquid storage tank 1. The return pipe 3 is provided with a second valve 31. When the second valve 31 is opened, the liquid in the pump 7 can flow back to the liquid storage tank 1 through the return pipe 3. Optionally, the return pipe 3 is also provided with a flow meter 35 to measure the flow rate in the return pipe 3.

[0036] In this embodiment, both the first valve 21 and the second valve 31 are two-way valves. When testing the pump 7, both the first valve 21 and the second valve 31 can be opened. In this case, a circuit is formed between the liquid storage tank 1 and the pump 7. The pump 7 can draw the liquid in the liquid storage tank 7 from the outlet pipe 3 into the pump 7, and can also pump the liquid in the pump 7 back into the liquid storage tank 7 through the return pipe 3.

[0037] In addition, during testing, the first valve 21 and the second valve 31 can be closed. At this time, the liquid storage pipe 1 and the pump 7 are isolated from each other, and the pump 7 is in a waterless circulation state. The pump 7 is equivalent to a secondary pump in a waterless circulation state, which can simulate the environment in which the secondary pump is located to verify the reliability of the secondary pump.

[0038] Multiple first temperature sensors 4 are disposed within the outlet pipe 2 and spaced apart along the direction in which the outlet pipe 2 extends. Multiple second temperature sensors 5 are disposed within the return pipe 3 and spaced apart along the direction in which the return pipe 3 extends. A third temperature sensor is disposed on the pump 7 to detect the temperature of the pump 7, particularly the temperature of the pump body and motor windings of the pump 7. Optionally, the third temperature sensor is a thermocouple.

[0039] The data acquisition and analysis module 6 is coupled to the first temperature sensor 4, the second temperature sensor 5, and the third temperature sensor, so that the data acquisition and analysis module 6 can receive and record the temperature information from the first temperature sensor 4, the temperature information from the second temperature sensor 5, and the third temperature information from the third temperature sensor. As an example, the data acquisition and analysis module 6 can be a computer.

[0040] Therefore, when the first valve 21 and the second valve 31 are both closed, the pump 7 is in a water-free circulation state. At this time, the water temperature in the outlet pipe 2 can be detected by the first temperature sensor 4, the water temperature in the return pipe 3 can be detected by the second temperature sensor 5, and the temperature of the pump 7 can be detected by the third temperature sensor, so that the corresponding temperature information is recorded in the data acquisition and analysis module 6 to verify the reliability of the pump 7 in the water-free circulation state.

[0041] Optionally, the data acquisition and analysis module 6 is provided with an alarm module (not shown). When the temperature of one of the first temperature sensor 4, the second temperature sensor 5, and the third temperature sensor exceeds a preset temperature (e.g., 85° C.), an alarm is sounded. It should be noted that the preset temperature is adjustable, for example, between 60° C. and 90° C.

[0042] Optionally, the distance between two adjacent first temperature sensors 4 is 0.1 m to 0.5 m, for example, 0.2 m. In addition, the distance between two adjacent first temperature sensors 4 may be equal or unequal.

[0043] Optionally, the distance between two adjacent second temperature sensors 5 is 0.1 m to 0.5 m, for example, 0.2 m. In addition, the distance between two adjacent second temperature sensors 5 may be equal or unequal.

[0044] Example 2

[0045] like Figure 2 As shown, the pump testing system in Example 2 also includes a liquid storage tank 1, a water outlet pipe 2, a water return pipe 3, multiple first temperature sensors 4, multiple second temperature sensors 5, a third temperature sensor (not shown) and a data acquisition and analysis module 6.

[0046] Different from Example 1, in Example 2, the first valve 21 and the second valve 31 are both three-way valves. In addition, the structures of the water outlet pipe 2 and the water return pipe 3 are adjusted accordingly.

[0047] Specifically, if Figure 2 As shown, the water outlet pipe 2 includes a first water outlet section 22, a second water outlet section 23 and a third water outlet section 24. One end of the first water outlet section 22 is connected to the liquid storage tank 1, and the other end of the first water outlet section 22 is connected to the first opening 211 of the first valve 21, one end of the second water outlet section 23 is connected to the second opening 212 of the first valve 21, and the other end of the second water outlet section 23 is used to connect to the inlet of the pump 7, one end of the third water outlet section 24 is connected to the third opening 213 of the first valve 21, and the other end of the third water outlet section 24 is connected to the second water outlet section 23.

[0048] like Figure 2 As shown, the return water pipe 3 includes a first return water section 32, a second return water section 33 and a third return water section 34. One end of the first return water section 32 is connected to the liquid storage tank 1, and the other end of the first return water section 32 is connected to the opening 1 311 of the second valve 31, one end of the second return water section 33 is connected to the opening 2 312 of the second valve 31, and the other end of the second return water section 33 is used to connect to the outlet of the pump 7, one end of the third return water section 34 is connected to the opening 3 313 of the second valve 31, and the other end of the third return water section 34 is connected to the second return water section 33.

[0049] like Figure 2 As shown, when the first opening 211 and the second opening 212 of the first valve 21 are connected, and the opening 1 311 and the opening 2 312 of the second valve 31 are connected, the liquid in the liquid storage tank 1 can flow into the pump 7 along the first water outlet section 22 and the second water outlet section 23, and the liquid in the pump 7 can flow back to the liquid storage tank 1 along the second return water section 33 and the first return water section 32.

[0050] When the first valve 21 and the second valve 31 are both closed, the liquid storage tank 1 and the pump 7 are isolated from each other, and the pump 7 is in a waterless circulation state. The pump 7 is equivalent to a secondary pump in a waterless circulation state, which can simulate the environment in which the secondary pump is located to verify the reliability of the secondary pump.

[0051] In addition, if Figure 3 As shown, when the first opening 211 and the third opening 213 of the first valve 21 are connected, and the opening 1 311 and the opening 3 313 of the second valve 31 are connected, the liquid in the liquid storage tank 1 can flow into the pump 7 along the first water outlet section 22 and the third water outlet section 24, and the liquid in the pump 7 can flow back to the liquid storage tank 1 along the third water return section 34 and the first water return section 32. Furthermore, the opening of the first valve 21 and the opening of the second valve 31 are adjustable, so that the flow rate in the water outlet pipe 2 and the water return pipe 3 can be adjusted, thereby changing the circulation volume of the pump 7. At the same time, the data acquisition and analysis module 6 collects and records the temperature information of the first temperature sensor 4, the second temperature sensor 5 and the third temperature sensor to simulate the reliability of the secondary pump under different circulation volumes.

[0052] It should be noted that Example 1 and Example 2 can be used alone or in combination. When Example 1 and Example 2 are used in combination, they can share a liquid storage tank 1 .

[0053] In summary, according to the pump testing system of the present application, the temperature of the pump 7 can be measured in a waterless circulation state and at different circulation volumes, thereby verifying the reliability of the pump 7 in a waterless circulation state and at different circulation volumes.

[0054] Although the present application has been described in detail above using general explanations, specific embodiments, and experiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present application. Therefore, such modifications or improvements, without departing from the spirit of the present application, are within the scope of protection claimed in the present application.

Claims

1. A pump testing system, characterized in that: include: Liquid storage tank (1); a water outlet pipe (2), the inlet of the water outlet pipe (2) being in communication with the liquid storage tank (1), the outlet of the water outlet pipe (2) being used to connect to the inlet of the pump (7), and a first valve (21) being provided on the water outlet pipe (2); a return pipe (3), the inlet of the return pipe (3) being used to connect to the outlet of the pump (7), the outlet of the return pipe (3) being in communication with the liquid storage tank (1), and a second valve (31) being provided on the return pipe (3); a plurality of first temperature sensors (4), the plurality of first temperature sensors (4) being arranged inside the water outlet pipe (2) and spaced apart along the extension direction of the water outlet pipe (2); a plurality of second temperature sensors (5), the plurality of second temperature sensors (5) being arranged inside the water return pipe (3) and spaced apart along the extension direction of the water return pipe (3); a third temperature sensor, the third temperature sensor being configured to be arranged on the pump (7); as well as A data acquisition and analysis module (6) is coupled to the first temperature sensor (4), the second temperature sensor (5), and the third temperature sensor.

2. The pump testing system according to claim 1, wherein: The third temperature sensor is a thermocouple.

3. The pump testing system according to claim 1, wherein: The return water pipe (3) is also provided with a flow meter (35).

4. The pump testing system according to claim 1, wherein: The data acquisition and analysis module (6) is provided with an alarm module, and when the temperature of one of the first temperature sensor (4), the second temperature sensor (5) and the third temperature sensor is greater than a preset temperature, the alarm sounds an alarm.

5. The pump testing system according to claim 1, wherein: The liquid storage tank (1) is provided with an exhaust valve (11).

6. The pump testing system according to claim 1, wherein: The liquid storage tank (1) is provided with a safety valve (12).

7. The pump testing system according to claim 1, wherein: The distance between two adjacent first temperature sensors is 0.1 m to 0.5 m.

8. The pump testing system according to claim 1, wherein: The distance between two adjacent second temperature sensors is 0.1 m to 0.5 m.

9. The pump testing system according to any one of claims 1 to 8, characterized in that The first valve (21) and the second valve (31) are both two-way valves.

10. The pump testing system according to any one of claims 1 to 8, characterized in that The first valve (21) is a three-way valve, and the water outlet pipe (2) comprises a first water outlet section (22), a second water outlet section (23) and a third water outlet section (24); one end of the first water outlet section (22) is connected to the liquid storage tank (1), and the other end of the first water outlet section (22) is connected to the first opening (211) of the first valve (21); one end of the second water outlet section (23) is connected to the second opening (212) of the first valve (21); the other end of the second water outlet section (23) is used to connect to the inlet of the pump (7); one end of the third water outlet section (24) is connected to the third opening (213) of the first valve (21), and the other end of the third water outlet section (24) is connected to the second water outlet section (23); The second valve (31) is a three-way valve, and the return water pipe (3) includes a first return water section (32), a second return water section (33) and a third return water section (34). One end of the first return water section (32) is connected to the liquid storage tank (1), and the other end of the first return water section (32) is connected to the first opening (311) of the second valve (31). One end of the second return water section (33) is connected to the second opening (312) of the second valve (31). The other end of the second return water section (33) is used to connect to the outlet of the pump (7). One end of the third return water section (34) is connected to the third opening (313) of the second valve (31), and the other end of the third return water section (34) is connected to the second return water section (33). The opening of the first valve (21) and the opening of the second valve (31) are adjustable.

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