CN212132024U - Medium supply system for low-temperature bearing and dynamic seal test - Google Patents
Medium supply system for low-temperature bearing and dynamic seal test Download PDFInfo
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- CN212132024U CN212132024U CN202020361579.5U CN202020361579U CN212132024U CN 212132024 U CN212132024 U CN 212132024U CN 202020361579 U CN202020361579 U CN 202020361579U CN 212132024 U CN212132024 U CN 212132024U
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Abstract
The utility model provides a medium supply system for low-temperature bearing and dynamic seal test, which comprises a liquid nitrogen storage tank, a first working container and a second working container; the liquid nitrogen storage tank is connected with the first working container and the second working container through a filling pipeline; and an output valve is arranged on the filling pipeline to open or close the filling pipeline. The low-temperature liquid nitrogen storage tank is used for storing liquid nitrogen, and the liquid nitrogen in the low-temperature liquid nitrogen storage tank can be transferred to the first working container and the second working container according to needs, so that the liquid nitrogen filling frequency in the first working container and the second working container is reduced, and the test is convenient. Through setting up two work containers of first work container and second work container, can provide the medium for cryogenic bearing test and dynamic seal test simultaneously to improve test efficiency, reduce test cost.
Description
Technical Field
The utility model belongs to the technical field of observe and control, concretely relates to a medium supply system for low temperature bearing and dynamic seal are experimental.
Background
With the rapid development of the aerospace related technical field, the application of low-temperature high-speed bearings and low-temperature dynamic seals is wider and wider, so the market demand of the low-temperature high-speed bearings and the low-temperature dynamic seals is rapidly increased year by year. However, the test system in the prior art can only perform test examination on a single product of a normal-temperature bearing or seal, and lacks a test system for performing examination research on a low-temperature high-speed bearing and a low-temperature dynamic seal; moreover, the test efficiency and the product types of test examination of the existing test system cannot meet the current large amount of test requirements, so that the development of an integrated test system capable of being used for a low-temperature bearing and a dynamic seal is urgently needed, and a medium supply system is essential in the integrated test system.
Disclosure of Invention
To overcome, at least to some extent, the problems of the related art, the present invention provides a media supply system for low temperature bearing and dynamic seal testing.
According to an embodiment of the present invention, the present invention provides a medium supply system for low temperature bearing and dynamic seal test, which includes a liquid nitrogen storage tank, a first working container and a second working container; the liquid nitrogen storage tank is connected with the first working container and the second working container through a filling pipeline; and an output valve is arranged on the filling pipeline to open or close the filling pipeline.
In the medium supply system for the low-temperature bearing and dynamic seal test, the output valve is opened during the low-temperature test; and during normal temperature test, the output valve is closed.
In the medium supply system for the low-temperature bearing and dynamic seal test, a first filter is further arranged on a filling pipeline connecting the output valve with the first working container and the second working container.
In the medium supply system for the low-temperature bearing and dynamic seal test, the filling pipeline is also provided with an emptying valve.
In the medium supply system for the low-temperature bearing and dynamic seal test, the liquid nitrogen storage tank is provided with a filling valve, and liquid nitrogen is filled into the liquid nitrogen storage tank through the filling valve.
Further, the liquid nitrogen storage tank is also provided with a first liquid level meter, a first pressure sensor, a gasification pressurization unit and a first safety valve;
the first liquid level meter is used for detecting and displaying the liquid level in the liquid nitrogen storage tank in real time; the first pressure sensor is used for detecting the pressure in the liquid nitrogen storage tank in real time;
the gasification pressurization unit is used for pressurizing liquid nitrogen in the liquid nitrogen storage tank; the first safety valve is used for carrying out overpressure relief on the liquid nitrogen storage tank.
In the above medium supply system for low-temperature bearing and dynamic seal test, the bottom of the first working container is provided with a first low-temperature stop valve, and liquid nitrogen is filled into the first working container through the first low-temperature stop valve.
The first working container is further provided with a second liquid level meter, a second pressure sensor, a first pneumatic pressurization valve, a second safety valve, a first pneumatic exhaust valve and a first manual exhaust valve;
the second liquid level meter is used for detecting and displaying the liquid level in the first working container in real time; the second pressure sensor is used for detecting the pressure in the first working container in real time;
the first pneumatic pressurization valve is arranged on a pressurization pipeline connected to the top of the first working container; the second safety valve is used for carrying out overpressure relief on the first working container;
and the first pneumatic exhaust valve and the first manual exhaust valve are used for discharging the pressure in the first working container.
In the above medium supply system for low-temperature bearing and dynamic seal test, the bottom of the second working container is provided with a second low-temperature stop valve, and liquid nitrogen is filled into the second working container through the second low-temperature stop valve.
Further, the second working container is also provided with a third liquid level meter, a third pressure sensor, a second pneumatic booster valve, a third safety valve, a second pneumatic exhaust valve and a second manual exhaust valve;
the third liquid level meter is used for detecting and displaying the liquid level in the second working container in real time; the third pressure sensor is used for detecting the pressure in the second working container in real time;
the second pneumatic pressurization valve is arranged on a pressurization pipeline connected to the top of the second working container; the third safety valve is used for carrying out overpressure relief on the second working container;
and the second pneumatic exhaust valve and the second manual exhaust valve are used for releasing the pressure in the second working container in real time.
According to the above embodiments of the present invention, at least the following advantages are obtained: the utility model discloses a medium supply system for low temperature bearing and dynamic seal are experimental is through setting up low temperature liquid nitrogen storage tank, first working container and second working container, and low temperature liquid nitrogen storage tank is used for storing the liquid nitrogen, and liquid nitrogen in the low temperature liquid nitrogen storage tank can change as required and annotate to first working container and second working container in to reduce the filling frequency of liquid nitrogen in first working container and the second working container, it is experimental more convenient.
Through setting up two work containers of first work container and second work container, can provide the medium for cryogenic bearing test and dynamic seal test simultaneously to improve test efficiency, reduce test cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification of the invention, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a medium supply system for a low-temperature bearing and dynamic seal test provided by an embodiment of the present invention.
Description of reference numerals:
1. a liquid nitrogen storage tank; 11. a filling valve; 12. a first liquid level meter; 13. a first pressure sensor; 14. a gasification pressurization unit; 15. a first safety valve;
2. a first working container; 21. a first low temperature stop valve; 22. a second level gauge; 23. a second pressure sensor; 24. a first pneumatic booster valve; 25. a second relief valve; 26. a first pneumatic exhaust valve; 27. a first manual exhaust valve;
3. a second working container; 31. a second low temperature stop valve; 32. a third liquid level meter; 33. a third pressure sensor; 34. a second pneumatic booster valve; 35. a third relief valve; 36. a second pneumatic exhaust valve; 37. a second manual exhaust valve;
4. a filling pipeline; 41. an output valve; 42. a first filter; 43. and an evacuation valve.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the spirit of the present invention will be described in detail with reference to the accompanying drawings, and any person skilled in the art can change or modify the techniques taught by the present invention without departing from the spirit and scope of the present invention after understanding the embodiments of the present invention.
The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.
As used herein, the terms "first," "second," …, etc. do not denote any order or sequential importance, nor are they used to limit the invention, but rather are used to distinguish one element from another or from another element or operation described in the same technical language.
With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
References to "plurality" herein include "two" and "more than two"; reference to "multiple sets" herein includes "two sets" and "more than two sets".
As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. In general, the range of slight variations or errors that such terms modify may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.
Certain words used to describe the invention are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the invention.
Fig. 1 is a schematic structural diagram of a medium supply system for a low-temperature bearing and dynamic seal test provided by an embodiment of the present invention.
The embodiment of the utility model provides a medium supply system for low temperature bearing and dynamic seal are experimental is used for providing required medium for low temperature bearing and dynamic seal are experimental. It should be noted that the low temperature in the embodiment of the present invention may be about-190 ℃, but the application of the medium supply system of the present invention is not limited to this temperature range.
As shown in fig. 1, a medium supply system for low-temperature bearing and dynamic seal test provided by the embodiment of the present invention includes a low-temperature liquid nitrogen storage tank 1, a first working container 2 and a second working container 3. The low-temperature liquid nitrogen storage tank 1 is connected with the first working container 2 and the second working container 3 through a low-temperature filling pipeline 4. The first working vessel 2 and the second working vessel 3 are both used for being connected with a test detection system through a process pipeline system.
The low-temperature filling line 4 is provided with an output valve 41. The low-temperature liquid nitrogen storage tank 1 is used for storing liquid nitrogen, is made of a vacuum heat-insulating material, can store the liquid nitrogen for a long time, and can reduce the filling frequency of the liquid nitrogen.
During the low-temperature test, the output valve 41 is opened, low-temperature liquid nitrogen can be filled into the first working container 2 and the second working container 3, and the medium provided by the first working container 2 and the second working container 3 for the process pipeline system is the liquid nitrogen. By arranging the first working container 2 and the second working container 3, liquid nitrogen with different pressures or flow rates can be provided for the test.
During normal temperature test, the output valve 41 is closed, and the medium provided by the first working container 2 and the second working container 3 for the process pipeline system is compressed air.
A first filter 42 is also arranged on the low-temperature filling pipeline 4 connecting the low-temperature liquid nitrogen storage tank 1 with the first working container 2 and the second working container 3. The first filter 42 serves to filter impurities in the liquid nitrogen filled from the cryogenic liquid nitrogen storage tank 1 into the first and second working vessels 2 and 3.
The low-temperature liquid nitrogen storage tank 1 is provided with a filling valve 11, a first liquid level meter 12, a first pressure sensor 13, a gasification pressurizing unit 14, and a first relief valve 15.
The low-temperature liquid nitrogen can be filled into the low-temperature liquid nitrogen storage tank 1 through the low-temperature filling valve 11. First level gauge 12 and first pressure sensor 13 all have the teletransmission function, can send the detected value to outside observing and controlling system. The first liquid level meter 12 is used for detecting and displaying the liquid level in the low-temperature liquid nitrogen storage tank 1 in real time, and the liquid level conversion is convenient for workers to master the content of liquid nitrogen in the storage tank in real time. The first pressure sensor 13 is used for detecting the pressure in the low-temperature liquid nitrogen storage tank 1 in real time. The gasification pressurizing unit 14 is used for pressurizing liquid nitrogen in the low-temperature liquid nitrogen storage tank 1, so that the liquid nitrogen is gasified, the pressure in the low-temperature liquid nitrogen storage tank 1 is adjusted, and the transfer filling efficiency of the liquid nitrogen from the low-temperature liquid nitrogen storage tank 1 to the first working container 2 and the second working container 3 can be effectively improved. The first safety valve 15 is used for performing overpressure relief on the cryogenic liquid nitrogen storage tank 1 so as to ensure the safety of the cryogenic liquid nitrogen storage tank 1.
In order to prevent overpressure in the cryogenic filling line 4 caused by vaporization of residual liquid nitrogen in the cryogenic filling line 4, the cryogenic filling line 4 is further provided with an evacuation valve 43.
The first working container 2 is cold-insulated by adopting a polyurethane foaming technology, so that the cost is reduced and the test requirements can be met. The bottom of the first working container 2 is provided with a first low-temperature stop valve 21, and the low-temperature liquid nitrogen storage tank 1 can fill low-temperature liquid nitrogen into the first working container 2 by opening the first low-temperature stop valve 21.
The first working vessel 2 is further provided with a second level gauge 22, a second pressure sensor 23, a first pneumatic booster valve 24, a second safety valve 25, a first pneumatic vent valve 26 and a first manual vent valve 27.
Both the second gauge 22 and the second pressure sensor 23 are provided with a remote transmission function. The second level gauge 22 is used for detecting and displaying the liquid level in the first working vessel 2 in real time. The second pressure sensor 23 is used to detect the pressure in the first working container 2 in real time, preventing overpressure.
Be provided with first pneumatic booster valve 24 on the pressure boost pipeline of first work container 2 top connection, during pure high-pressure air passes through pressure boost pipeline and first pneumatic booster valve 24 entering first work container 2 to carry out the pressure boost to low temperature liquid nitrogen or other media in the first work container 2, and then adjust the output flow and the pressure of low temperature medium. The second safety valve 25 is used to vent the first working container 2 with excess pressure in order to ensure the safety of the first working container 2.
In the test process, when the pressure in the first working container 2 needs to be reduced, the pressure in the first working container 2 can be released by remotely controlling the first pneumatic exhaust valve 26; the pressure inside the first working container 2 can also be released manually through the first manual venting valve 27. In addition, when the first working container 2 is filled with the cryogenic liquid nitrogen, the high-pressure gas in the first working container 2 may be evacuated through the first manual exhaust valve 27.
The second working container 3 adopts a polyurethane foaming technology for cold insulation and heat insulation, so that the cost is reduced and the test requirements can be met. The bottom of the second working container 3 is provided with a second low-temperature stop valve 31, and the low-temperature liquid nitrogen storage tank 1 can fill low-temperature liquid nitrogen into the second working container 3 by opening the second low-temperature stop valve 31.
The second working vessel 3 is further provided with a third level gauge 32, a third pressure sensor 33, a second pneumatic booster valve 34, a third safety valve 35, a second pneumatic vent valve 36 and a second manual vent valve 37.
Both the third gauge 32 and the third pressure sensor 33 are provided with a remote transmission function. The third level gauge 32 is used for detecting and displaying the liquid level in the second working vessel 3 in real time. The third pressure sensor 33 is used to detect the pressure in the second working container 3 in real time, preventing overpressure.
A second pneumatic pressurization valve 34 is arranged on a pressurization pipeline connected to the top of the second working container 3, and pure high-pressure air enters the second working container 3 through the pressurization pipeline and the second pneumatic pressurization valve 34 to pressurize low-temperature liquid nitrogen or other media in the second working container 3, so that the output flow and pressure of the low-temperature media are adjusted. The third safety valve 35 is used to vent the second working container 3 at an overpressure in order to ensure the safety of the second working container 3.
In the test process, when the pressure in the second working container 3 needs to be reduced, the pressure in the second working container 3 can be released by remotely controlling the second pneumatic exhaust valve 36; the pressure inside the second working vessel 3 can also be released manually through a second manual vent valve 37. In addition, when the low-temperature liquid nitrogen is filled into the second working container 3, the high-pressure gas in the second working container 3 may be evacuated through the second manual exhaust valve 37.
The utility model provides a medium supply system for low temperature bearing and dynamic seal are experimental through setting up low temperature liquid nitrogen storage tank 1, first working container 2 and second working container 3, and low temperature liquid nitrogen storage tank 1 is used for storing the liquid nitrogen, and the liquid nitrogen in the low temperature liquid nitrogen storage tank 1 can be transferred as required and annotate to first working container 2 and second working container 3 in to reduce the filling frequency of liquid nitrogen in first working container 2 and the second working container 3, it is more convenient experimental. Through setting up two work containers of first work container 2 and second work container 3, can provide the medium for cryogenic bearing test and dynamic seal test simultaneously to improve test efficiency, reduce test cost.
The foregoing is only an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention should fall within the protection scope of the present invention.
Claims (10)
1. A medium supply system for low-temperature bearing and dynamic seal tests is characterized by comprising a liquid nitrogen storage tank, a first working container and a second working container; the liquid nitrogen storage tank is connected with the first working container and the second working container through a filling pipeline; and an output valve is arranged on the filling pipeline to open or close the filling pipeline.
2. The media supply system for cryogenic bearing and dynamic seal testing of claim 1, wherein the output valve is open during cryogenic testing; and during normal temperature test, the output valve is closed.
3. The media supply system for low temperature bearing and dynamic seal testing of claim 1, wherein a first filter is further provided on the fill line connecting the output valve with the first and second working vessels.
4. The media supply system for low temperature bearing and dynamic seal testing according to claim 1, wherein an evacuation valve is further disposed on the fill line.
5. The medium supply system for low-temperature bearing and dynamic seal test according to claim 1, 2, 3 or 4, wherein the liquid nitrogen storage tank is provided with a filling valve through which liquid nitrogen is filled into the liquid nitrogen storage tank.
6. The media supply system for cryogenic bearing and dynamic seal testing of claim 5, wherein the liquid nitrogen storage tank is further configured with a first level gauge, a first pressure sensor, a gasification pressurization unit, and a first relief valve;
the first liquid level meter is used for detecting and displaying the liquid level in the liquid nitrogen storage tank in real time; the first pressure sensor is used for detecting the pressure in the liquid nitrogen storage tank in real time;
the gasification pressurization unit is used for pressurizing liquid nitrogen in the liquid nitrogen storage tank; the first safety valve is used for carrying out overpressure relief on the liquid nitrogen storage tank.
7. The media supply system for low temperature bearing and dynamic seal test according to claim 1 or 2 or 3 or 4, characterized in that the first working vessel bottom is provided with a first low temperature stop valve through which liquid nitrogen is filled into the first working vessel.
8. The media supply system for cryogenic bearing and dynamic seal testing of claim 7, wherein the first working vessel is further configured with a second liquid level gauge, a second pressure sensor, a first pneumatic booster valve, a second safety valve, a first pneumatic vent valve, and a first manual vent valve;
the second liquid level meter is used for detecting and displaying the liquid level in the first working container in real time; the second pressure sensor is used for detecting the pressure in the first working container in real time;
the first pneumatic pressurization valve is arranged on a pressurization pipeline connected to the top of the first working container; the second safety valve is used for carrying out overpressure relief on the first working container;
and the first pneumatic exhaust valve and the first manual exhaust valve are used for discharging the pressure in the first working container.
9. The media supply system for low temperature bearing and dynamic seal test according to claim 1 or 2 or 3 or 4, characterized in that the second working vessel bottom is provided with a second low temperature stop valve through which liquid nitrogen is filled into the second working vessel.
10. The media supply system for cryogenic bearing and dynamic seal testing of claim 9, wherein the second working vessel is further configured with a third liquid level gauge, a third pressure sensor, a second pneumatic booster valve, a third relief valve, a second pneumatic vent valve, and a second manual vent valve;
the third liquid level meter is used for detecting and displaying the liquid level in the second working container in real time; the third pressure sensor is used for detecting the pressure in the second working container in real time;
the second pneumatic pressurization valve is arranged on a pressurization pipeline connected to the top of the second working container; the third safety valve is used for carrying out overpressure relief on the second working container;
and the second pneumatic exhaust valve and the second manual exhaust valve are used for releasing the pressure in the second working container in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361579.5U CN212132024U (en) | 2020-03-20 | 2020-03-20 | Medium supply system for low-temperature bearing and dynamic seal test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361579.5U CN212132024U (en) | 2020-03-20 | 2020-03-20 | Medium supply system for low-temperature bearing and dynamic seal test |
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| Publication Number | Publication Date |
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| CN212132024U true CN212132024U (en) | 2020-12-11 |
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|---|---|---|---|
| CN202020361579.5U Active CN212132024U (en) | 2020-03-20 | 2020-03-20 | Medium supply system for low-temperature bearing and dynamic seal test |
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| CN (1) | CN212132024U (en) |
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