A cryopump performance testing system and method

Abstract

The application discloses a kind of cryogenic pump performance test system and method, it is related to cryogenic pump test technical field, including: temperature acquisition module, pressure test module, processing module, conveying module, storage module and presentation module.The application will be detected cryogenic pump by using time and place in conveying module for conveying, it is convenient to cooperate temperature acquisition module and pressure test module and carry out efficient performance test, and by temperature acquisition module, the temperature change information of cryogenic pump can be collected in preset time period, and by pressure test module, the pressure test of cryogenic pump is carried out, and by processing module and presentation module, the performance of current cryogenic pump is evaluated, not only simple operation process, easy to operate, but also high in test performance precision and test efficiency, with the advantages of safe and reliable in working environment, environmental protection and economic operation, wide adaptability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cryogenic pump testing, in particular to a cryogenic pump performance testing system and method. BACKGROUND

[0002] At present, in the field of cryogenic medium transportation, cryogenic pumps have been widely used. Due to the characteristics of low temperature and easy vaporization of cryogenic medium, the working conditions are harsh, so the requirements for the pump transporting such medium are very high. At present, all domestic medium and large cryogenic pumps rely on import, and are in the situation of foreign technology monopoly, which causes problems such as high product price and lagging technical support for installation and maintenance.

[0003] However, before the cryogenic pump is shipped, performance testing needs to be carried out to test its safety and reliability under low-temperature working conditions. In order to cooperate with the localization development of cryogenic pumps, a cryogenic pump performance testing system becomes an indispensable detection system platform.

[0004] However, there is no effective solution to the problems in the related art. SUMMARY

[0005] In order to overcome the above technical problems existing in the prior art, the present application proposes a cryogenic pump performance testing system and method.

[0006] The technical scheme of the present application is as follows:

[0007] In one aspect of the present application:

[0008] A cryogenic pump performance testing system and method, comprising: a temperature acquisition module, a pressure testing module, a processing module, a conveying module, a storage module and a presentation module;

[0009] The temperature acquisition module, the pressure testing module, the conveying module, the storage module and the presentation module are electrically connected to the processing module respectively;

[0010] The temperature acquisition module is configured to acquire the temperature change information of the cryogenic pump within a preset time period and transmit the information to the processing module;

[0011] The pressure testing module is configured to acquire the pressure testing information of the cryogenic pump and transmit the information to the processing module;

[0012] The processing module is configured to receive the temperature information and the pressure information and perform data processing to transmit the information to the presentation module;

[0013] The conveying module is configured to convey the cryogenic pump to be tested to cooperate with the temperature acquisition module and the pressure testing module to perform performance testing;

[0014] The storage module is used for storing the processing data.

[0015] The presentation module is used for visualizing the processing data.

[0016] Further, the temperature acquisition module is a temperature sensor.

[0017] Further, the pressure test module is a pressure tester.

[0018] Further, the conveying module comprises symmetrically arranged driving wheels and driven wheels, a conveying belt is arranged on the driving wheels and the driven wheels, and a driving motor is connected to the driving wheels.

[0019] Further, the presentation module is a display instrument.

[0020] Further, the presentation module comprises a curve presentation.

[0021] Further, the presentation module is further electrically connected with a printing module.

[0022] Another aspect of the present application is:

[0023] A low-temperature pump performance testing method, which is a method for a low-temperature pump performance testing system, comprises the following steps:

[0024] In step S1, a low-temperature pump to be tested is placed on a conveying module to be conveyed to a temperature acquisition module to acquire current low-temperature pump temperature change information in a preset time period and transmit the information to a processing module.

[0025] In step S2, the processing module processes the acquired temperature change information and judges whether the current low-temperature pump temperature change conforms to a temperature change preset value, which comprises the following steps:

[0026] In step S201, if the current low-temperature pump temperature change does not conform to the temperature change preset value, the current low-temperature pump is an unqualified product and is marked and screened out.

[0027] In step S202, if the current low-temperature pump temperature change conforms to the temperature change preset value, a pressure test module acquires pressure information of the current low-temperature pump and transmits the information to the processing module.

[0028] In step S3, the processing module visualizes the acquired low-temperature pump temperature change information and pressure information.

[0029] The visualization comprises the following steps:

[0030] In step S301, the acquired low-temperature pump temperature change information and pressure information are generated into a curve presentation.

[0031] Advantages of the present application:

[0032] The low-temperature pump performance test system and method, by using the time, the low-temperature pump to be detected is placed in the conveying module for conveying, facilitating efficient performance test in cooperation with the temperature acquisition module and the pressure test module, the temperature acquisition module can collect the low-temperature pump temperature change information in the preset time period, and the pressure test module can test the pressure of the low-temperature pump, and the processing module and the presentation module can evaluate the performance of the current low-temperature pump, which not only has simple operation process and easy operation, but also has high test performance precision and high test efficiency, has the advantages of safe and reliable operation, environmental protection and economic operation in the working environment, and wide adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0034] Figure 1 It is a principle block diagram of a low-temperature pump performance test system according to an embodiment of the present application;

[0035] Figure 2 It is a structure schematic diagram of a conveying module of a low-temperature pump performance test system according to an embodiment of the present application;

[0036] Figure 3 It is a flow schematic diagram of a low-temperature pump performance test method according to an embodiment of the present application;

[0037] Figure 4 It is a presentation module schematic diagram of a low-temperature pump performance test method according to an embodiment of the present application Figure 1 ;

[0038] Figure 5 It is a presentation module schematic diagram of a low-temperature pump performance test method according to an embodiment of the present application Figure 2 ;

[0039] Figure 6 It is a presentation module schematic diagram of a low-temperature pump performance test method according to an embodiment of the present application Figure 3 .

[0040] Figure 7 It is a presentation module schematic diagram of a low-temperature pump performance test method according to an embodiment of the present application Figure 4 .

[0041] In the drawings:

[0042] 1. Temperature acquisition module; 2. Pressure testing module; 3. Processing module; 4. Conveying module; 5. Storage module; 6. Presentation module; 7. Driving wheel; 8. Driven wheel; 9. Conveyor belt; 10. Drive motor; 11. Printing module. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0044] According to an embodiment of the present invention, a cryogenic pump performance testing system is provided.

[0045] like Figure 1 As shown, the cryogenic pump performance testing system according to an embodiment of the present invention includes: a temperature acquisition module 1, a pressure testing module 2, a processing module 3, a delivery module 4, a storage module 5, and a presentation module 6;

[0046] Temperature acquisition module 1, pressure testing module 2, delivery module 4, storage module 5, and presentation module 6 are electrically connected to processing module 3, respectively.

[0047] Temperature acquisition module 1 is used to acquire temperature change information of cryogenic pump within a preset time period and transmit it to processing module 3;

[0048] Pressure testing module 2 is used to collect pressure test information of the cryogenic pump and transmit it to processing module 3;

[0049] Processing module 3 is used to receive temperature and pressure information, process the data, and transmit it to presentation module 6;

[0050] The delivery module 4 is used to deliver the cryogenic pump under test in conjunction with the temperature acquisition module 1 and the pressure testing module 2 for performance testing.

[0051] Storage module 5 is used to store the processed data;

[0052] Presentation module 6 is used to visualize the processed data.

[0053] The temperature acquisition module 1 is a temperature sensor; the pressure testing module 2 is a pressure testing instrument; and the display module 6 is a display instrument. The results can be presented via graphs.

[0054] In addition, the presentation module 6 is also electrically connected to the printing module 11.

[0055] In addition, such as Figure 2As shown, the conveying module 4 comprises: symmetrically arranged driving wheels 7 and driven wheels 8, the driving wheels 7 and the driven wheels 8 are sleeved with a conveying belt 9, and the driving wheels 7 are connected with a driving motor 10, and the low-temperature pump to be tested is placed on the conveying belt 9 for conveying.

[0056] By means of the above scheme, when in use, the low-temperature pump to be detected is placed on the conveying module 4 for conveying, so that efficient performance testing can be carried out in cooperation with the temperature acquisition module 1 and the pressure testing module 2, the temperature change information of the low-temperature pump within a preset time period can be acquired by the temperature acquisition module 1, the low-temperature pump can be tested in pressure by the pressure testing module 2, and the performance of the current low-temperature pump can be evaluated by the processing module 3 and the presentation module 6, so that the operation process is simple and easy to operate, the testing performance precision is high and the testing efficiency is high, the working environment is safe and reliable, environmentally friendly and economical to operate, and the adaptability is wide.

[0057] According to the embodiments of the present application, a low-temperature pump performance testing method is provided.

[0058] As shown, the low-temperature pump performance testing method according to the embodiments of the present application comprises the following steps: Figure 3

[0059] Step S1, the low-temperature pump to be tested is placed on the conveying module 4 in advance and conveyed to the temperature acquisition module 1 to acquire the temperature change information of the current low-temperature pump within a preset time period and transmit the temperature change information to the processing module 3;

[0060] Step S2, the processing module 3 processes the acquired temperature change information and judges whether the temperature change of the current low-temperature pump conforms to the temperature change preset value, wherein the step comprises the following steps:

[0061] Step S201, if the temperature change of the current low-temperature pump does not conform to the temperature change preset value, the current low-temperature pump is a substandard product and is marked out;

[0062] Step S202, if the temperature change of the current low-temperature pump conforms to the temperature change preset value, the current low-temperature pump is tested in pressure by the pressure testing module 2 to acquire pressure information and transmit the pressure information to the processing module 3;

[0063] Step S3, the processing module 3 visually presents the acquired low-temperature pump temperature change information and pressure information.

[0064] The step of visually presenting comprises the following steps:

[0065] Step S301, the acquired low-temperature pump temperature change information and pressure information are presented by generating a curve graph.

[0066] In addition, for the generated curve graph of the actual temperature of the low-temperature pump, the fault reason is analyzed according to the change of the curve, and the specific method is as follows:​

[0067] like Figure 4 As shown in the figure, the cryogenic pump is cooling normally. The vertical axis of the graph represents the temperature / K parameter value, and the horizontal axis represents the time / min parameter value. The cooling rate is stable before 100K, the cooling rate accelerates significantly after 100K, and the cooling rate slows down without abnormal fluctuations after 20K. Therefore, the cryogenic pump is cooling normally and can be used as a reference standard.

[0068] In addition, such as Figure 5 As shown, the cooling speed slows down between 200K and 100K, indicating poor vacuum in the cold pump, which affects the cooling rate. At the same time, the large fluctuations after stabilizing the temperature for 2 hours after reaching 20K indicate a problem with the cold pump regenerator and abnormal internal cold storage. In other words, the current low-temperature pump is cooling abnormally, and the product performance is unqualified.

[0069] In addition, such as Figure 6 As shown, the overall cooling time is longer than normal, taking 50 minutes longer to cool down to below 20K compared to a normal cold pump. The gas distribution of the cold pump needs to be checked. At the same time, the second-stage cooling is slower, so the cooling capacity of the second-stage regenerator needs to be checked. In other words, if the current low-temperature pump is cooling abnormally, the product performance is unqualified.

[0070] In addition, such as Figure 7 As shown, the overall cooling rate is slightly slow. In addition, there are small, sawtooth-like temperature fluctuations after the temperature stabilizes. The cold pump thermometer needs to be checked. If the current low-temperature pump is cooling abnormally, then the product performance is unqualified.

[0071] In summary, by utilizing the above-mentioned technical solution of the present invention, the cryogenic pump to be tested is placed in the conveying module 4 for conveying during use, which facilitates efficient performance testing in conjunction with the temperature acquisition module 1 and the pressure testing module 2. The temperature acquisition module 1 can collect the temperature change information of the cryogenic pump within a preset time period, and the pressure testing module 2 can perform pressure testing on the cryogenic pump. The performance of the current cryogenic pump is evaluated through the processing module 3 and the presentation module 6. Not only is the operation process simple and easy to operate, but the test performance is also highly accurate and efficient. It has the advantages of being safe, reliable, environmentally friendly, and economical in the working environment, and has wide adaptability.

[0072] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Those skilled in the art, upon considering the disclosure in the specification and embodiments, will readily conceive of other embodiments of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0073] It should be understood that the present disclosure is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present disclosure. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method of testing the performance of a cryogenic pump, characterized in that, Comprise the following steps: The low temperature pump to be tested is placed on the conveying module (4) in advance to be conveyed to the temperature acquisition module (1) to acquire the current low temperature pump temperature change information in a preset time period, and is transmitted to the processing module (3); The processing module (3) processes the acquired temperature change information and judges whether the current low temperature pump temperature change conforms to the temperature change preset value, wherein the following steps are included: If the current low temperature pump temperature change does not conform to the temperature change preset value, the current low temperature pump is a substandard product, which is marked and screened out; If the current low temperature pump temperature change conforms to the temperature change preset value, the current low temperature pump is subjected to the pressure test module (2) to acquire pressure information and transmit to the processing module (3); The processing module (3) visually presents the acquired low temperature pump temperature change information and pressure information; The low temperature pump performance test method is used for a low temperature pump performance test system, and the low temperature pump performance test system comprises a temperature acquisition module (1), a pressure test module (2), a processing module (3), a conveying module (4), a storage module (5) and a presentation module (6); The temperature acquisition module (1), the pressure test module (2), the conveying module (4), the storage module (5) and the presentation module (6) are electrically connected with the processing module (3) respectively; The temperature acquisition module (1) is used for acquiring low temperature pump temperature change information in a preset time period and transmitting to the processing module (3); The pressure test module (2) is used for acquiring low temperature pump pressure test information and transmitting to the processing module (3); The processing module (3) is used for receiving temperature information and pressure information and performing data processing and transmitting to the presentation module (6); The conveying module (4) is used for conveying the low temperature pump to be tested to cooperate with the temperature acquisition module (1) and the pressure test module (2) to perform performance test; The storage module (5) is used for storing processing data; The presentation module (6) is used for visually presenting processing data.

2. The method of claim 1, wherein, The temperature acquisition module (1) is a temperature sensor.

3. The method of claim 1, wherein, The pressure test module (2) is a pressure tester.

4. The method of claim 1, wherein, The conveying module (4) comprises symmetrically arranged driving wheels (7) and driven wheels (8), the driving wheels (7) and the driven wheels (8) are sleeved with a conveying belt (9), and the driving wheels (7) are connected with a driving motor (10), and the low temperature pump to be tested is placed on the conveying belt (9) to be conveyed.

5. The method of claim 1, wherein, The presentation module (6) is a display instrument.

6. The method of cryopump performance testing of claim 5, wherein, The presentation module (6) comprises a curve presentation.

7. The method of cryopump performance testing of claim 1, wherein, The presentation module (6) is further electrically connected with a printing module (11).

8. The method of cryopump performance testing of claim 1, wherein, The visual presentation includes the following steps: The acquired low temperature pump temperature change information and pressure information are generated to present a curve. The acquired low temperature pump temperature change information and pressure information are generated to present a curve.

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