CN221303890U

CN221303890U - Temperature control system for performance test of canned motor pump

Info

Publication number: CN221303890U
Application number: CN202323458169.5U
Authority: CN
Inventors: 杨玉婷; 陈乔曦; 汪明玥; 陈秀华
Original assignee: SHENYANG BLOWER WORKS GROUP NUCLEAR POWER PUMP CO Ltd
Current assignee: SHENYANG BLOWER WORKS GROUP NUCLEAR POWER PUMP CO Ltd
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-07-09
Anticipated expiration: 2033-12-18

Abstract

The application provides a temperature control system for a performance test of a shielding pump, which comprises a test pump, a test pipeline and an auxiliary pipeline, wherein the test pump is arranged on the test pipeline, the test pipeline is communicated with the auxiliary pipeline, the auxiliary pipeline is provided with a control part, and the control part is used for adjusting the temperature of a test medium in the auxiliary pipeline; the control part comprises a heater and a first cooler, and the heater is arranged in parallel with the first cooler. The control part is arranged on the auxiliary pipeline and is communicated with the test pipeline, so that the temperature of the test medium in the test pipeline can be influenced while the control part adjusts the temperature of the test medium in the auxiliary pipeline, and the aim of adjusting the temperature of the test medium in the test pipeline is fulfilled; meanwhile, the temperature change rate of the test medium in the test pipeline is improved by adjusting the temperature of the test medium in the test pipeline through the auxiliary pipeline, the test efficiency is improved, the test time and the test cost are reduced, and good economic benefits are achieved.

Description

Temperature control system for performance test of canned motor pump

Technical Field

The application belongs to the technical field of performance tests of canned motor pumps, and particularly relates to a canned motor pump performance test temperature control system.

Background

The test conditions of the high-temperature high-pressure performance test of the canned motor pump comprise: the temperature of the test medium in the test pipeline is in the range of 277.7-283.3 ℃. When the canned motor pump performs high-temperature high-pressure performance test, the temperature of the test medium may be caused to fluctuate under different working conditions, for example, under the working conditions of the same flow but different rotation speeds or under the working conditions of the same rotation speed but different flow, the temperature of the test medium in the test pipeline may be caused to fluctuate greatly.

The traditional test method for the high-temperature high-pressure performance of the canned motor pump is to adjust the temperature of the test medium in the test pipeline at each working point one by one so as to ensure that the temperature of the test medium in the test pipeline is in a temperature range required by the test. However, the total amount of the test medium in the whole test pipeline is very large, so that the temperature change rate is relatively slow when the temperature of the test medium in the test pipeline is regulated, the condition that the temperature of the test medium in the test pipeline exceeds the temperature range required by the test condition often occurs, the state of the test pipeline does not meet the test requirement, the test is stopped, a great amount of time is required for regulating the temperature of the test medium in the test pipeline, the test can be continued until the test condition is met again, and the test efficiency is extremely low.

Disclosure of utility model

Therefore, the technical problem to be solved by the application is to provide the temperature control system for the performance test of the canned motor pump, which can quickly adjust the temperature of the test medium in the test pipeline and improve the test efficiency.

In order to solve the above problems, the present application provides a temperature control system for a performance test of a canned motor pump, comprising:

A test pump;

The test pump is arranged on the test pipeline;

The auxiliary pipeline is communicated with the test pipeline and is used for adjusting the temperature of a test medium in the test pipeline;

The control part is arranged on the auxiliary pipeline and is used for adjusting the temperature of the test medium in the auxiliary pipeline;

The control part comprises a heater and a first cooler, and the heater is arranged in parallel with the first cooler.

Optionally, the temperature control system for the performance test of the canned motor pump further comprises an auxiliary circulating pump and a bypass pipeline, wherein the bypass pipeline is communicated with the auxiliary pipeline, and the auxiliary circulating pump is arranged on the auxiliary pipeline and is connected with the bypass pipeline in parallel.

Optionally, the temperature control system for testing the performance of the canned motor pump further comprises an expansion tank, wherein the expansion tank is communicated with the auxiliary pipeline and is used for storing the test medium.

Optionally, the temperature control system for testing the performance of the canned motor pump further comprises a pressure supply pump, wherein the pressure supply pump is communicated with the expansion tank, and the pressure supply pump is arranged on the downstream side of the expansion tank along the flow path direction.

Optionally, the temperature control system for the performance test of the canned motor pump further comprises a deaerator, wherein the deaerator is arranged between the expansion tank and the pressure supply pump, and the expansion tank, the deaerator and the pressure supply pump are sequentially communicated.

Optionally, the canned motor pump performance test temperature control system further includes a second cooler, the second cooler is in communication with the expansion tank, and the second cooler is disposed on an upstream side of the expansion tank in a flow path direction.

Optionally, the temperature control system for the performance test of the canned motor pump further comprises a third cooler, a jacket layer is arranged on the outer side of the test pump, and the third cooler is communicated with the jacket layer.

Optionally, the temperature control system for the performance test of the canned motor pump further comprises a cooling tower, wherein the cooling tower is respectively communicated with the first cooler, the second cooler and the third cooler, and is used for supplying cooling water to the first cooler, the second cooler and the third cooler.

Optionally, the canned motor pump performance test temperature control system further comprises a filter disposed on the auxiliary line and in parallel with the heater and the first cooler.

Optionally, the temperature control system for the performance test of the canned motor pump further comprises a rectifier, wherein the rectifier is arranged on the test pipeline and is arranged close to the water outlet of the test pump.

Advantageous effects

The embodiment of the utility model provides a temperature control system for a performance test of a canned motor pump, which can realize that the control part can influence the temperature of a test medium in a test pipeline when adjusting the temperature of the test medium in the auxiliary pipeline by arranging the control part on the auxiliary pipeline and communicating the auxiliary pipeline with the test pipeline so as to realize the aim of adjusting the temperature of the test medium in the test pipeline; meanwhile, the temperature change rate of the test medium in the test pipeline is improved by adjusting the temperature of the test medium in the test pipeline through the auxiliary pipeline, the test efficiency is improved, the test time and the test cost are reduced, good economic benefits are achieved, meanwhile, the temperature of the test medium in the test pipeline can be ensured to meet the test condition requirements, the condition that the temperature of the test medium in the test pipeline exceeds the temperature range required by the test condition is avoided, the test stability is improved, and the accuracy of the test result is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a temperature control system for performance test of a canned motor pump according to an embodiment of the present application.

The reference numerals are expressed as:

1. a test pump; 2. a test pipeline; 3. an auxiliary pipeline; 4. a heater; 5. a first cooler; 6. a second cooler; 7. a third cooler; 8. an auxiliary circulation pump; 9. a bypass line; 10. an expansion tank; 11. a pressure supply pump; 12. a deaerator; 13. a cooling tower; 14. a filter; 15. a rectifier.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1, according to an embodiment of the present application, there is provided a temperature control system for a performance test of a canned motor pump, comprising: a test pump 1; the test pipeline 2, the test pump 1 is set up on test pipeline 2; the auxiliary pipeline 3 is communicated with the test pipeline 2, and the auxiliary pipeline 3 is used for adjusting the temperature of a test medium in the test pipeline 2; the control part is arranged on the auxiliary pipeline 3 and is used for adjusting the temperature of the test medium in the auxiliary pipeline 3; wherein the control part comprises a heater 4 and a first cooler 5, and the heater 4 is arranged in parallel with the first cooler 5.

The embodiment of the utility model provides a temperature control system for a performance test of a canned motor pump, which can realize that the control part can influence the temperature of a test medium in a test pipeline 2 when adjusting the temperature of the test medium in an auxiliary pipeline 3 by arranging the control part on the auxiliary pipeline 3 and communicating the auxiliary pipeline 3 with the test pipeline 2 so as to realize the aim of adjusting the temperature of the test medium in the test pipeline 2; meanwhile, the temperature change rate of the test medium in the test pipeline 2 is improved by adjusting the temperature of the test medium in the test pipeline 2 through the auxiliary pipeline 3, the test efficiency is improved, the test time and the test cost are reduced, good economic benefits are achieved, meanwhile, the temperature of the test medium in the test pipeline 2 can be ensured to meet the test condition requirements, the condition that the temperature of the test medium in the test pipeline 2 exceeds the temperature range required by the test condition is avoided, the test stability is improved, and the accuracy of a test result is further improved.

The test pump 1 may be a canned motor pump, a coagulation pump, a magnetic pump, or other pumps that need performance test, which is not limited in the present application, and in the embodiment of the present application, the test pump 1 is a canned motor pump.

The test pump 1 is arranged on a test pipeline 2, the test pipeline 2 is a main circuit when the test pump 1 performs high-temperature high-pressure performance test, and a test medium is arranged in the test pipeline 2.

Specifically, the test line 2 may be a stainless steel pipe, a carbon steel pipe, or the like. The test pipeline 2 is provided with a main valve and a flowmeter, the main valve is used for controlling the communication state of the test pipeline 2, and the flowmeter is used for monitoring the flow of the test medium in the test pipeline 2.

The test medium may be a medium with higher purity such as class a water.

Among other things, in some possible embodiments provided by the present disclosure, the barrier pump performance test temperature control system further includes a rectifier 15, where the rectifier 15 may be a rectifier grid or the like.

Specifically, the rectifier 15 is disposed on the test pipeline 2 and near the water outlet of the test pump 1, and the rectifier 15 is used for reducing disturbance when the test medium flows in the test pipeline 2, so that the test medium can flow in the test pipeline 2 smoothly, and test stability is improved.

Wherein, test pipeline 2 is linked together with supplementary pipeline 3, and test medium can remove in test pipeline 2 and supplementary pipeline 3, and supplementary pipeline 3 is used for adjusting the temperature of test medium in the test pipeline 2.

The auxiliary pipeline 3 may be a stainless steel pipe or a carbon steel pipe. The auxiliary pipeline 3 is provided with a control part for adjusting the temperature of the test medium in the auxiliary pipeline 3, and it is understood that the temperature of the test medium in the auxiliary pipeline 3 will be influenced when the temperature of the test medium in the test pipeline 2 is changed, so that the purpose of adjusting the temperature of the test medium in the test pipeline 2 is achieved.

Specifically, because the test medium in the auxiliary pipeline 3 has a certain capacity, the temperature of the test medium in the test pipeline 2 can be quickly adjusted even if the total amount of the test medium in the test pipeline 2 is large, compared with the traditional mode of adjusting the temperature of the test medium in the test pipeline 2 at each working point one by one, the test efficiency is improved, meanwhile, the temperature of the test medium in the test pipeline 2 can be ensured to meet the test condition requirement, so that the condition that the temperature of the test medium in the test pipeline 2 exceeds the temperature range required by the test condition is avoided, the test stability is improved, and the accuracy of the test result is further improved.

The control part comprises a heater 4 and a first cooler 5, the heater 4 can be an electric heater 4, the first cooler 5 can be a shell-and-tube heat exchanger or a plate heat exchanger, and the heater 4 and the first cooler 5 are respectively communicated with the auxiliary pipeline 3.

Specifically, the heater 4 is disposed in parallel with the first cooler 5. In the embodiment of the application, when the temperature range required by the performance test of the canned motor pump is 277.7-283.3 ℃ and the temperature of the test medium in the test pipeline 2 is close to or lower than 277.7 ℃, the heater 4 is communicated with the auxiliary pipeline 3, and the heater 4 is used for controlling the temperature rise of the test medium in the auxiliary pipeline 3 so as to improve the temperature of the test medium in the test pipeline 2; when the temperature of the test medium in the test pipeline 2 is close to or higher than 283.3 ℃, the first cooler 5 is communicated with the auxiliary pipeline 3, and the first cooler 5 is used for controlling the temperature of the test medium in the auxiliary pipeline 3 to be reduced so as to reduce the temperature of the test medium in the test pipeline 2.

In some possible embodiments provided by the present disclosure, the canned motor pump performance test temperature control system further includes an auxiliary circulation pump 8 and a bypass line 9, the bypass line 9 being in communication with the auxiliary line 3, the auxiliary circulation pump 8 being disposed on the auxiliary line 3 and in parallel with the bypass line 9.

By arranging the auxiliary circulating pump 8 on the auxiliary pipeline 3, the test medium can be driven to flow in the auxiliary pipeline 3 and the test pipeline 2 before the test pump 1 is started, namely before the test starts, so that the temperature of the test medium in the test pipeline 2 can be regulated before the test starts, the temperature of the test medium in the test pipeline 2 before the test starts can be ensured to meet the test condition requirement, the performance test of the test pump 1 can be stably carried out, and the accuracy of the test result is improved.

The auxiliary circulating pump 8 is arranged on the auxiliary pipeline 3 and is communicated with the auxiliary pipeline 3, and the auxiliary circulating pump 8 is used for providing power for the test medium flowing in the auxiliary pipeline 3 and the test pipeline 2 before the test pump 1 is started, namely before the test starts, so as to ensure that the temperature of the test medium in the test pipeline 2 before the test starts meets the test condition requirement.

Specifically, the temperature control system for the performance test of the canned motor pump further comprises a bypass pipeline 9, and the bypass pipeline 9 is connected with the auxiliary circulating pump 8 in parallel. It will be appreciated that after the test pump 1 is started, i.e. the auxiliary circulation pump 8 does not need to work during the test, the bypass line 9 parallel to the auxiliary circulation pump 8 can be connected to the auxiliary line 3 instead of the auxiliary circulation pump 8, so as to ensure that the temperature control system for the performance test of the canned motor pump can operate stably.

In some possible embodiments provided by the present disclosure, the canned pump performance test temperature control system further comprises an expansion tank 10, the expansion tank 10 being in communication with the auxiliary line 3, the expansion tank 10 being for storing a test medium.

The expansion tank 10 is arranged, and the expansion tank 10 is communicated with the auxiliary pipeline 3, so that a closed loop system is formed by the temperature control system for the performance test of the canned motor pump, the closed loop system is filled with the test medium, and the test can be performed without vacuumizing the inlet pipeline of the test pump 1, so that the preparation work before the test is reduced, the test operation steps are simplified, the test process is simple and clear, and the test efficiency is improved.

The expansion tank 10 may be a steady flow tank, etc., and the inlet and outlet of the expansion tank 10 are communicated with the auxiliary pipeline 3.

Specifically, the expansion tank 10 has a water-containing function, and can absorb redundant test media caused by thermal expansion from the system when the system is warmed up, and simultaneously supplement the test media to the system when the system is cooled down and leaks; the expansion tank 10 also has a constant pressure function, and the point at which the expansion tank 10 is communicated with the auxiliary pipeline 3 is a constant pressure point or a constant pressure point of the system, so that the system can be ensured not to be emptied, overflowed or superpressure.

In some possible embodiments provided by the present disclosure, the canned pump performance test temperature control system further includes a pressure supply pump 11, the pressure supply pump 11 being in communication with the expansion tank 10, the pressure supply pump 11 being disposed on a downstream side of the expansion tank 10 in the flow path direction.

The pressure supply pump 11 is arranged on the downstream side of the expansion tank 10 along the flow path direction, and the pressure supply pump 11 is communicated with the expansion tank 10, so that the outlet pressure of the expansion tank 10 can be regulated, the purpose of regulating the auxiliary loop and the test loop pressure is realized, the dynamic pressure balance of the temperature control system for the performance test of the canned motor pump can be ensured, and the working stability of the temperature control system for the performance test of the canned motor pump is improved.

The pressure feed pump 11 may be a booster pump or the like, and the pressure feed pump 11 is provided on the downstream side of the expansion tank 10 in the flow path direction.

Specifically, the first end of the pressure supply pump 11 is communicated with the outlet of the expansion tank 10, and the second end is communicated with the auxiliary pipeline 3, so that the test medium in the expansion tank 10 can enter the auxiliary pipeline 3 through the pressure supply pump 11, and the pressure supply pump 11 is used for adjusting the outlet pressure of the expansion tank 10 so as to achieve the purpose of adjusting the pressure of the auxiliary circuit and the test circuit, thereby ensuring the pressure dynamic balance of the temperature control system for the performance test of the canned motor pump.

In some possible embodiments provided by the present disclosure, the canned pump performance test temperature control system further includes a deaerator 12, the deaerator 12 being disposed between the expansion tank 10 and the pressure supply pump 11, the expansion tank 10, the deaerator 12, and the pressure supply pump 11 being in communication in sequence.

By arranging the deaerator 12 between the expansion tank 10 and the pressure supply pump 11 and communicating the expansion tank 10, the deaerator 12 and the pressure supply pump 11 in sequence, oxygen in the test medium can be removed, the oxygen content in the test pipeline 2 is reduced, and the accuracy of the test result is improved.

The deaerator 12 may be a vacuum deaerator, and the deaerator 12 is disposed between the expansion tank 10 and the pressure supply pump 11.

Specifically, the first end of the deaerator 12 is communicated with the outlet of the expansion tank 10, and the second end of the deaerator 12 is communicated with the first end of the pressure supply pump 11, so that the test medium in the expansion tank 10 can enter the pressure supply tank through the deaerator 12, the purpose of reducing the oxygen content in the system is achieved, and the accuracy of the test result is improved.

In some possible embodiments provided by the present disclosure, the canned motor pump performance test temperature control system further includes a second cooler 6, the second cooler 6 being in communication with the expansion tank 10, the second cooler 6 being disposed on an upstream side of the expansion tank 10 in the flow path direction.

The second cooler 6 is arranged on the upstream side of the expansion tank 10 along the flow path direction, and the second cooler 6 is communicated with the expansion tank 10, so that test media flowing into the expansion tank 10 can be cooled, the high-temperature test media are prevented from directly entering the expansion tank 10, the working stability of a temperature control system for a canned motor pump performance test is improved, and the service life of the expansion tank 10 is prolonged.

The second cooler 6 may be a shell and tube heat exchanger, a plate heat exchanger or the like.

Specifically, the first end of the second cooler 6 is communicated with the inlet of the expansion tank 10, and the second end is communicated with the auxiliary pipeline 3, so that the high-temperature test medium enters the expansion tank 10 through the second cooler 6, and the second cooler 6 is used for reducing the temperature of the high-temperature test medium so as to avoid damage to the expansion tank 10 and prolong the service life of the expansion tank 10.

In some possible embodiments provided by the present disclosure, the canned motor pump performance test temperature control system further includes a water supply and drainage pump, the expansion tank 10 having two water supply and drainage lines disposed in parallel, the water supply and drainage pump being disposed between the two water supply and drainage lines and being in communication with the expansion tank 10 through the two water supply and drainage lines.

The water supply and drainage pump has the functions of filling water from the auxiliary circuit phase expansion tank 10 and draining water from the expansion tank 10 to the auxiliary circuit.

In particular, the water supply and drainage pump is used for self-circulating the test medium in the test line 2 and the auxiliary line 3 before the test starts. It will be appreciated that before the test is started, the pump 11 is closed, purified water and LIOH are injected into the system to meet the level a water requirement, the pump is started at this time, and the purified water is adjusted to be alkaline by the self-circulation under the action of LIOH.

Wherein LIOH may be injected into the system through the filter 14.

In some possible embodiments provided by the present disclosure, the canned pump performance test temperature control system further comprises a third cooler 7, the outside of the test pump 1 having a jacket layer, the third cooler 7 being in communication with the jacket layer.

The test pump 1 can be cooled in the test process by arranging the third cooler 7 and enabling the third cooler 7 to be communicated with the jacket layer of the test pump 1, so that the motor of the test pump 1 can stably run at a set temperature, the working stability of the test pump 1 is improved, and meanwhile, the accuracy of test results is improved.

The outside of the test pump 1 is provided with a jacket layer, a heat exchange medium is arranged in the jacket layer, the heat exchange medium can be water and the like, and the heat exchange medium is used for absorbing heat generated during operation of the test pump 1 so as to prevent the temperature of the test pump 1 from exceeding a set temperature.

The set temperature may be the highest temperature that the motor can withstand when the test pump 1 is running.

The temperature control system for the performance test of the canned motor pump further comprises an external heat exchanger, wherein the external heat exchanger is communicated with the jacket layer and is used for exchanging heat with a heat exchange medium in the jacket layer so as to reduce the temperature of the jacket layer.

Specifically, in the embodiment of the present application, the third cooler 7 is respectively connected to the external heat exchanger and the jacket layer, so as to absorb heat of the jacket layer on one hand, and absorb heat of the external heat exchanger on the other hand, so as to ensure that the motor temperature is always lower than the set temperature when the test pump 1 operates.

In some possible embodiments provided by the present disclosure, the canned pump performance test temperature control system further includes a cooling tower 13, the cooling tower 13 being in communication with the first cooler 5, the second cooler 6, and the third cooler 7, respectively, the cooling tower 13 being configured to supply cooling water to the first cooler 5, the second cooler 6, and the third cooler 7.

Cooling water can be stably supplied to the first cooler 5, the second cooler 6 and the third cooler 7 by arranging the cooling tower 13 and enabling the cooling tower 13 to be respectively communicated with the first cooler 5, the second cooler 6 and the third cooler 7, so that good cooling effects of the first cooler 5, the second cooler 6 and the third cooler 7 are ensured, and the working stability of a temperature control system for a canned motor pump performance test is improved.

Wherein, the first cooler 5, the second cooler 6 and the third cooler 7 can be shell-and-tube heat exchangers or plate heat exchangers, etc.

Specifically, the cooling tower 13 is a device for cooling a heat exchange medium by using contact between air and the heat exchange medium, and in the embodiment of the present application, the heat exchange medium is water, that is, the cooling tower 13 uses water as a circulating coolant, absorbs heat from the first cooler 5, the second cooler 6 and the third cooler 7, and discharges the heat to the atmosphere, thereby reducing the temperature of cooling water.

In some possible embodiments provided by the present disclosure, the canned pump performance test temperature control system further comprises a filter 14, the filter 14 being disposed on the auxiliary line 3 and being disposed in parallel with the heater 4 and the first cooler 5.

Through setting up filter 14 on auxiliary line 3 and making filter 14 and heater 4 and first cooler 5 parallelly connected setting can be with filter 14 and auxiliary line 3 when the heat transfer medium needs to filter the impurity in the heat transfer medium, so as to ensure that the heat transfer medium has higher cleanliness factor, thereby improved test pump 1 job stabilization nature, prolonged test pump 1's life simultaneously.

The filter 14 may be a Y-filter 14 or the like.

Specifically, the filter 14 is in communication with the auxiliary pipeline 3, and the filter 14 is used for filtering the test medium flowing through the filter 14 so as to improve the cleanliness of the test medium.

In some possible embodiments provided by the disclosure, the temperature control system for the performance test of the canned motor pump further comprises an upper computer, a plurality of electromagnetic valves and a plurality of temperature sensors, wherein the upper computer can be a PID temperature control module and the like, and the upper computer is used for receiving information transmitted by the temperature sensors to control the electromagnetic valves to be opened and closed so as to adjust the working state of the temperature control system for the performance test of the canned motor pump.

Specifically, the test pipeline 2 and the auxiliary pipeline 3 are provided with temperature sampling points, and the temperature of the test pipeline 2 and the temperature of the auxiliary pipeline 3 are related to each other, so that the temperature of the auxiliary pipeline 3 can be controlled by adjusting the heater 4 and the first cooler 5 on the auxiliary pipeline 3 and monitoring the temperature value of the auxiliary pipeline 3, and the temperature of the test pipeline reaches the standard.

It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application. The foregoing is merely a preferred embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the application.

Claims

1. A canned motor pump performance test temperature control system, comprising:

A test pump (1);

The test pump (1) is arranged on the test pipeline (2);

The auxiliary pipeline (3) is communicated with the test pipeline (2), and the auxiliary pipeline (3) is used for adjusting the temperature of a test medium in the test pipeline (2);

The control part is arranged on the auxiliary pipeline (3) and is used for adjusting the temperature of the test medium in the auxiliary pipeline (3);

the control part comprises a heater (4) and a first cooler (5), and the heater (4) is arranged in parallel with the first cooler (5).

2. The canned motor pump performance testing temperature control system according to claim 1, characterized in that it further comprises an auxiliary circulation pump (8) and a bypass line (9), said bypass line (9) being in communication with said auxiliary line (3), said auxiliary circulation pump (8) being arranged on said auxiliary line (3) and being arranged in parallel with said bypass line (9).

3. The canned motor pump performance testing temperature control system according to claim 1, characterized in that it further comprises an expansion tank (10), said expansion tank (10) being in communication with said auxiliary line (3), said expansion tank (10) being adapted to store said test medium.

4. A canned motor pump performance testing temperature control system according to claim 3, characterized in that the canned motor pump performance testing temperature control system further comprises a pressure supply pump (11), the pressure supply pump (11) being in communication with the expansion tank (10), the pressure supply pump (11) being provided on a downstream side of the expansion tank (10) in a flow path direction.

5. The canned motor pump performance testing temperature control system according to claim 4, further comprising a deaerator (12), the deaerator (12) being arranged between the expansion tank (10) and the pressure supply pump (11), the expansion tank (10), the deaerator (12) and the pressure supply pump (11) being in communication in sequence.

6. A canned motor pump performance testing temperature control system according to claim 3, characterized in that the canned motor pump performance testing temperature control system further comprises a second cooler (6), the second cooler (6) being in communication with the expansion tank (10), the second cooler (6) being provided on an upstream side of the expansion tank (10) in a flow path direction.

7. The canned motor pump performance testing temperature control system according to claim 6, further comprising a third cooler (7), the outside of the test pump (1) having a jacket layer, the third cooler (7) being in communication with the jacket layer.

8. The canned motor pump performance testing temperature control system according to claim 7, characterized in that the canned motor pump performance testing temperature control system further comprises a cooling tower (13), the cooling tower (13) being in communication with the first cooler (5), the second cooler (6) and the third cooler (7), respectively, the cooling tower (13) being adapted to supply cooling water to the first cooler (5), the second cooler (6) and the third cooler (7).

9. The canned motor pump performance testing temperature control system according to claim 1, characterized in that it further comprises a filter (14), said filter (14) being arranged on the auxiliary line (3) and in parallel with the heater (4) and the first cooler (5).

10. The canned motor pump performance testing temperature control system according to claim 1, characterized in that it further comprises a rectifier (15), said rectifier (15) being arranged on the test line (2) and close to the water outlet of the test pump (1).