CN214067288U - Double-pipeline vacuum high-pressure sparking test system - Google Patents
Double-pipeline vacuum high-pressure sparking test system Download PDFInfo
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- CN214067288U CN214067288U CN202022761959.0U CN202022761959U CN214067288U CN 214067288 U CN214067288 U CN 214067288U CN 202022761959 U CN202022761959 U CN 202022761959U CN 214067288 U CN214067288 U CN 214067288U
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Abstract
The utility model discloses a double-pipeline vacuum high-pressure sparking test system, which comprises a vacuum tank body test environment module, an air inlet pipeline module and a vacuum acquisition module; the vacuum tank body test environment module comprises two vacuum tank bodies which are connected through a communication pipeline, namely a main vacuum tank body and an auxiliary vacuum tank body, a balance valve is arranged on the communication pipeline, a tested power supply interface is arranged on each vacuum tank body to be connected with a tested power supply and tested equipment, a vacuumizing port is arranged on each vacuum tank body to obtain a vacuum environment, an air inlet pipe is fixedly assembled on each vacuum tank body, the air inlet pipe is fixedly and hermetically inserted into the vacuum tank bodies, and a gas outlet of the air inlet pipe extends into the vacuum tank bodies and is close to an electrode position of the tested power supply or the tested equipment so as to input gas to locally destroy vacuum; the utility model discloses can carry out the vacuum experiment of striking sparks under the multiple mode, the function is diversified.
Description
Technical Field
The utility model relates to a high-voltage electrical technical field especially relates to a double-pipeline vacuum high pressure test system that strikes sparks.
Background
In the high-voltage electric, the application environment of a high-voltage power supply is a high-vacuum environment, in the practical application production, various performance parameters and the anti-sparking interference performance of the high-voltage power supply during sparking under high vacuum degree need to be tested, the power supply sparking phenomenon under vacuum is caused by discontinuously and stably jetting trace gas elements into a high-voltage cavity, and the continuous vacuum sparking phenomenon is caused by long-term discontinuous gas supply, so that the anti-sparking interference performance of equipment is tested, besides, whether the sparking phenomenon exists in the power supply when the vacuum degree of the power supply is instantaneously changed to a certain vacuum degree or not is also an important performance of the high-voltage power supply. However, a testing device is not available at present, which can simultaneously realize the above tests of various performances.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double-pipeline vacuum high pressure test system that strikes sparks to the problem that lacks high voltage power supply parameter testing arrangement that exists among the prior art.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
a double-pipeline vacuum high-pressure sparking test system comprises a vacuum tank test environment module, an air inlet pipeline module and a vacuum obtaining module;
the vacuum tank body test environment module comprises two vacuum tank bodies which are connected through a communication pipeline, namely a main vacuum tank body and an auxiliary vacuum tank body, a balance valve is arranged on the communication pipeline, a tested power supply interface is arranged on each vacuum tank body to be connected with a tested power supply and tested equipment, a vacuumizing port is arranged on each vacuum tank body to obtain a vacuum environment, an air inlet pipe is fixedly assembled on each vacuum tank body, the air inlet pipe is fixedly and hermetically inserted into the vacuum tank bodies, and a gas outlet of the air inlet pipe extends into the vacuum tank bodies and is close to an electrode position of the tested power supply or the tested equipment so as to input gas to locally destroy vacuum;
the air inlet pipeline module comprises an air inlet pipeline, an air inlet stop valve, a pressure sensor and a gas mass flow controller, wherein the air inlet stop valve, the pressure sensor and the gas mass flow controller are assembled on the air inlet pipeline; the air inlet pipeline is communicated with the air inlet of the air inlet pipe,
the vacuum obtaining module comprises a vacuum obtaining pipeline connected with the vacuum obtaining port, a vacuumizing control valve arranged on the vacuum obtaining pipeline, a vacuum gauge and a vacuumizing pump set communicated with the vacuum obtaining pipeline.
In the above technical solution, the gas outlet is a narrow hole formed at an end of the gas inlet pipe.
In the above technical scheme, two ends of the communication pipeline are respectively connected to the air inlet pipelines of the main vacuum tank body and the auxiliary vacuum tank body.
In the technical scheme, the tested power interface is arranged at the top of the vacuum tank body, the gas input port is arranged at the bottom of the vacuum tank body, and the vacuumizing port is arranged on the side face of the vacuum tank body.
In the technical scheme, the air pumping control valve is an air pumping butterfly valve, the vacuum pumping pump set comprises a mechanical pump and a molecular pump, and the air inlet stop valve is a small-flow electromagnetic stop valve.
In the technical scheme, the air exhaust butterfly valve is connected between the vacuum pumping port and the vacuum obtaining pipeline in a sealing mode through a flange O ring.
In the above technical solution, the vacuum gauge is hermetically connected to the vacuum tank or the vacuum obtaining pipeline 14 by a KF flange.
In the above technical solution, the vacuum obtaining pipe is assembled by a CF high vacuum flange.
In the above technical solution, the diameter of the vacuum obtaining tube is 140-200 mm; the air inlet pipeline is a stainless steel pipeline with the diameter of 3-6 mm.
In the technical scheme, the vacuum high-pressure sparking testing device further comprises an electrical control module, wherein the electrical control module comprises a man-machine interaction unit, an embedded control circuit unit and a power supply unit, and the embedded control circuit unit is in communication connection with the man-machine interaction unit, the air inlet stop valve, the pressure sensor, the gas mass flow controller, the air pumping control valve, the vacuum gauge and a controller of the vacuum pumping pump set respectively.
In the technical scheme, the vacuum high-pressure ignition testing device further comprises a support structure, caster wheels are arranged at the bottom of the support structure, the vacuum tank body is fixed to the top of the support structure, the vacuumizing pump set is fixed to the lower portion of the support structure, and the air inlet stop valve, the pressure sensor and the gas mass flow controller are fixed to a positioning plate in the middle of the support structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a double-pipeline vacuum high pressure test system that strikes sparks has multiple test mode, and the first is carried out when certain fixed flow gas is imported, the experiment of striking sparks of high-voltage electrical equipment (high voltage power supply), and the second utilizes the inlet line control flow to become step pulse flow to realize incessant high repeatability supplies micro flow pulse gas, various performance parameters when the test power supply strikes sparks under high vacuum continuously; thirdly, testing whether the power supply has the phenomenon of striking fire when the vacuum degree of the power supply is instantly changed to a certain vacuum degree.
2. The equipment reduces the vacuum degree to 10-4After Pa, the air is conveyed into the vacuum tank body by utilizing the flow precision control of the air inlet pipeline to destroy the local vacuum degree, and under the normal working condition of the power supply, a user can beat the air by inputting the air in the human-computer interaction unit in the control moduleThe ignition time is precisely controlled at the ignition interval.
3. The device can continuously test for multiple days without interrupting the ignition test, and the whole operation is reliable.
Drawings
FIG. 1 is a side view of a dual-line vacuum high pressure sparking test system.
Fig. 2 is a schematic view of a connection structure of an air inlet pipe and the vacuum tank.
FIG. 3 is a front view of a dual-line vacuum high pressure sparking test system.
FIG. 4 is a schematic diagram of a dual-line vacuum high pressure sparking test system.
In the figure: the system comprises a gas outlet 1, a human-computer interaction unit 2, an embedded control circuit unit 3, a molecular pump controller 4, a support structure 5, casters 6, a balance valve 7, a vacuum tank 8, a tested power interface 9, an air inlet pipe 10, an air inlet pipeline 11, an air inlet stop valve 12, an air mass flow controller 13, a vacuum obtaining pipeline 14, an air pumping control valve 15, a vacuum gauge 16, a mechanical pump 17 and a molecular pump 18.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A double-pipeline vacuum high-pressure sparking test system comprises a vacuum tank test environment module, an air inlet pipeline module and a vacuum obtaining module;
the vacuum tank body test environment module comprises two vacuum tank bodies 8 which are connected through a communication pipeline and are respectively a main vacuum tank body 8-1 and an auxiliary vacuum tank body 8-2, a balance valve 7 is arranged on the communication pipeline, each vacuum tank body 8 is provided with a tested power supply interface 9 for connecting a tested power supply and tested equipment, each vacuum tank body 8 is provided with a vacuumizing port for obtaining a vacuum environment, each vacuum tank body 8 is also fixedly provided with an air inlet pipe 10, the air inlet pipe 10 is fixedly and hermetically inserted into the vacuum tank body 8, and a gas outlet 1 of the air inlet pipe 10 extends into the vacuum tank body and is close to an electrode position of the tested power supply or the tested equipment so as to input gas to locally destroy vacuum;
the air inlet pipeline module comprises an air inlet pipeline 11, and an air inlet stop valve 12, a pressure sensor and a gas mass flow controller 13 which are assembled on the air inlet pipeline 11; the inlet line 11 communicates with the gas inlet of the inlet pipe,
the vacuum obtaining module comprises a vacuum obtaining pipeline 14 connected with the vacuum obtaining port, an air-pumping control valve 15 arranged on the vacuum obtaining pipeline 14, a vacuum gauge 16 and a vacuum-pumping pump set communicated with the vacuum obtaining pipeline 14.
Example 2
The test method of the double-pipeline vacuum high-pressure sparking test system comprises the following two modes:
mode 1: closing the balance valve V4, closing the air-pumping control valve V6 on the auxiliary vacuum tank 8-2, starting the air-pumping control valve V5 on the main vacuum tank 8-1, starting the vacuum-pumping pump group on the main vacuum tank 8-1, selecting the main vacuum tank to pump vacuum, and reducing the vacuum degree to 10-4The method comprises the steps of automatically stopping after Pa, turning off a gas-pumping control valve V5, then opening an air inlet stop valve 12 on a main vacuum tank 8-1, introducing gas required by user setting into the main vacuum tank 8-1 through an air inlet pipe for experiment, and observing whether vacuum ignition can be realized in the main vacuum tank 8-1, thereby testing the characteristics of a power supply;
or the gas mass flow controller 13 is used for controlling the gas flow to be step pulse flow, uninterrupted high-repeatability supply of micro-flow pulse gas is realized, and various performance parameters of the power supply during continuous ignition under high vacuum degree are tested;
mode 2: the system starts a pump set, opens an air pumping control valve V6 on the auxiliary vacuum tank 8-2, closes an air pumping control valve V5 on the main vacuum tank 8-1, selects the auxiliary vacuum tank to pump vacuum, and reduces the vacuum degree to 10-4The air pumping control valve V6 is closed after Pa, then the air inlet stop valve 12 on the auxiliary vacuum tank 8-2 is opened, the user sets the required flow or vacuum degree to adjust the vacuum degree of the auxiliary vacuum tank, the air inlet stop valve 12 on the auxiliary vacuum tank 8-2 is closed, and the balance is instantly openedThe valve V4 quickly balances the pressure in the main vacuum tank body and the auxiliary vacuum tank body to carry out experiments, and whether the power supply automatically ignites under the working condition of sudden change of the vacuum degree is tested, so that the characteristics of the power supply are tested.
Example 3
Preferably, the power interface to be tested is disposed at the top of the vacuum tank 8, the gas input port is disposed at the bottom of the vacuum tank 8, and the vacuum pumping port is disposed at the side of the vacuum tank 8. The tested power interface 9 is a blind plate which can be matched with a quick-plug power supply for use, an o ring is embedded on the blind plate, and the tested power interface 9 can be covered by the blind plate to prevent ash from falling.
Preferably, two ends of the communication pipeline are respectively connected to the air inlet pipelines of the main vacuum tank body and the auxiliary vacuum tank body.
Preferably, the air exhaust control valve 15 is an air exhaust butterfly valve, and the vacuum pump group includes a mechanical pump 17 and a molecular pump 18. The molecular pump 18 is controlled by the molecular pump controller 4, the vacuum system is obtained and has direct relation with the diameter and pumping speed of the vacuum obtaining pipeline 14, therefore, the vacuum obtaining pipeline 14 with the diameter of 160mm is selected for the system, when the vacuum is pumped, the mechanical pump 17 pre-pumps and the molecular pump 18 secondary pump carry out high vacuum obtaining, the pumping speed of the molecular pump 18 is 160L/S, the pumping speed of the mechanical pump 17 is 2L/S, and the ultimate vacuum reaches 1 multiplied by 10 within 20 minutes-4Pa。
Preferably, the air-extracting butterfly valve is hermetically connected between the vacuum-extracting port and the vacuum-obtaining pipeline 14 through a flange O-ring, the vacuum gauge 16 is hermetically connected to the vacuum tank 8 or the vacuum-obtaining pipeline 14 through a KF flange, the vacuum-obtaining pipeline 14 is assembled through a CF high-vacuum flange, and the vacuum degree can reach 10 after testing-4Pa。
Preferably, the flow of the small-flow stop valve is less than 10SLM, the small gas inlet under high vacuum degree can generate great fluctuation to vacuum, and the gas inlet flow can not exceed 10SCCM according to the power supply test requirement, so that the pipeline selected by the gas inlet pipeline 11 is a 3 or 6mm stainless steel pipeline (preferably 316L stainless steel, and the helium mass spectrum leak detection reaches 10SCCM after the pipeline is sealed-8sccsHe), according to the flow capacity, the air inlet stop valve 12 is a small-flow electromagnetic stop valve, and the gas mass flow controller 13 is a full-scale 10SCCM product for precisely controlling the gas.
As a preferable mode, the vacuum high-pressure sparking testing device further comprises an electrical control module, wherein the electrical control module comprises a man-machine interaction unit 2, an embedded control circuit unit 3 and a power supply unit, and the embedded control circuit unit is in communication connection with the man-machine interaction unit, the air inlet stop valve 12, the pressure sensor, the gas mass flow controller 13, the vacuumizing control valve 15, the vacuum gauge 16 and a controller of the vacuumizing pump set respectively. The system can allow a user to manually set the vacuum degree and the valve opening time in addition to realize the precise automatic control of the vacuum degree. On the basis, the system can be used for programming by using configuration software, so that the operation of a user is facilitated.
Preferably, the vacuum high-pressure sparking testing device further comprises a support structure 5, caster wheels 6 are arranged at the bottom of the support structure 5, the vacuum tank body 8 is fixed to the top of the support structure 5, the vacuum pump is fixed to the lower portion of the support structure 5, and the air inlet stop valve 12, the pressure sensor and the gas mass flow controller 13 are fixed to a positioning plate in the middle of the support structure 5. The stability of whole device is guaranteed, the fixed stability of each components and parts is guaranteed. The whole support structure 5 is built by adopting 40 sectional materials, weighs 500KG, is firm and durable, can absorb the vibration generated by the pump set for a long time, and does not interfere with the flow control part.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. A double-pipeline vacuum high-pressure sparking test system is characterized by comprising a vacuum tank test environment module, an air inlet pipeline module and a vacuum obtaining module;
the vacuum tank body test environment module comprises two vacuum tank bodies which are connected through a communication pipeline, namely a main vacuum tank body and an auxiliary vacuum tank body, a balance valve is arranged on the communication pipeline, a tested power supply interface is arranged on each vacuum tank body to be connected with a tested power supply and tested equipment, a vacuumizing port is arranged on each vacuum tank body to obtain a vacuum environment, an air inlet pipe is fixedly assembled on each vacuum tank body, the air inlet pipe is fixedly and hermetically inserted into the vacuum tank bodies, and a gas outlet of the air inlet pipe extends into the vacuum tank bodies and is close to an electrode position of the tested power supply or the tested equipment so as to input gas to locally destroy vacuum;
the air inlet pipeline module comprises an air inlet pipeline, an air inlet stop valve, a pressure sensor and a gas mass flow controller, wherein the air inlet stop valve, the pressure sensor and the gas mass flow controller are assembled on the air inlet pipeline; the air inlet pipeline is communicated with the air inlet of the air inlet pipe,
the vacuum obtaining module comprises a vacuum obtaining pipeline connected with the vacuum obtaining port, a vacuumizing control valve arranged on the vacuum obtaining pipeline, a vacuum gauge and a vacuumizing pump set communicated with the vacuum obtaining pipeline.
2. The dual-line vacuum high pressure sparking test system of claim 1, wherein the gas outlet is a slot formed in the end of the gas inlet tube.
3. The dual-line vacuum high-pressure sparking test system of claim 1, wherein both ends of the communication pipe are connected to the air inlet pipes of the main vacuum tank and the sub vacuum tank, respectively.
4. The dual-line vacuum high-pressure sparking test system of claim 1, wherein the power port to be tested is disposed at the top of the vacuum tank, the gas inlet port is disposed at the bottom of the vacuum tank, and the vacuum-pumping port is disposed at the side of the vacuum tank.
5. The dual-line vacuum high pressure sparking test system of claim 1, wherein the evacuation control valve is an evacuation butterfly valve, the evacuation pump set includes a mechanical pump and a molecular pump, and the intake shutoff valve is a low flow electromagnetic shutoff valve.
6. The dual-line vacuum high pressure sparking test system of claim 5, wherein the bleed butterfly valve is sealingly connected between the evacuation port and the vacuum pickup line via a flanged O-ring.
7. The dual-line vacuum high pressure sparking test system of claim 1, wherein the vacuum gauge is sealingly connected to the vacuum canister body or vacuum pick-up piping using a KF flange, the vacuum pick-up piping being assembled via a CF high vacuum flange.
8. The dual-line vacuum high-pressure sparking test system of claim 1, wherein the diameter of the vacuum obtaining tube is 140-200 mm; the air inlet pipeline is a stainless steel pipeline with the diameter of 3-6 mm.
9. The dual-line vacuum high-pressure sparking test system of claim 1, wherein the vacuum high-pressure sparking test device further comprises an electrical control module, the electrical control module comprises a man-machine interaction unit, an embedded control circuit unit and a power supply unit, and the embedded control circuit unit is respectively in communication connection with the man-machine interaction unit, the air inlet stop valve, the pressure sensor, the gas mass flow controller, the vacuumizing control valve, the vacuum gauge and the controller of the vacuumizing pump set.
10. The dual-line vacuum high-pressure sparking test system of claim 1, wherein the vacuum high-pressure sparking test device further comprises a support structure, casters are arranged at the bottom of the support structure, the vacuum tank body is fixed at the top of the support structure, the vacuumizing pump set is fixed at the lower part of the support structure, and the air inlet stop valve, the pressure sensor and the gas mass flow controller are fixed on a positioning plate at the middle part of the support structure.
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| CN114609449A (en) * | 2020-11-25 | 2022-06-10 | 核工业理化工程研究院 | Double-pipeline vacuum high-pressure sparking test system and test method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114609449A (en) * | 2020-11-25 | 2022-06-10 | 核工业理化工程研究院 | Double-pipeline vacuum high-pressure sparking test system and test method thereof |
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