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Valve core opening device

A valve core and valve body technology, applied in the field of storage tanks, can solve the problems of inconvenient operation and inconsistent position of the valve core of the storage tank, and achieve the effect of ensuring safety and stability

Active Publication Date: 2020-04-17
XIAN SPACE ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the position of the spool of the storage tank of different specifications is inconsistent, requiring different devices to open the spool, which is inconvenient to operate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In order to facilitate the understanding of the embodiments of the present invention, specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0039] like figure 1 , 2 As shown, a valve core opening device of the present invention includes: a main valve stem structure, a sealing blocking structure; as Figure 9 As shown, the valve body is provided with five ports a, b, c (not shown in the figure), d and e, and the ports a, b, c, d and e are connected; the port a is provided with a shut-off valve assembly for controlling the gas The connection between the source and the storage tank; the c interface is connected with the external air source; the d interface is equipped with the main valve stem structure and the sealing blocking structure, which is used to open or close the valve core of the filling port of...

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Abstract

The invention relates to the technical field of storage boxes, and discloses a valve core opening device. The valve core opening device comprises a main valve rod structure and a sealing blocking structure; the main valve rod structure comprises a handle cover, an annular handle (a) and a main valve rod; the handle cover and the annular handle (a) are mounted on one end of the main valve rod in sequence; the other end of the main valve rod penetrates into a connector (d); an annular handle (b) of the sealing blocking structure is connected with a sliding nut through a pressing bolt; the sliding nut is in threaded connection with a pressing nut (a); the pressing nut (a) is connected with the connector (d); an axial sealing ring and a pressing ring are used for sealing the main valve rod andthe connector (d); the sliding nut is driven to go forward or backward in a valve body by rotating the annular handle; the main valve rod can act flexibly like a screw driver according to the actualposition of the valve core of a storage box under the control of the annular handle (a); the main valve rod is limited through the pressing nut (a), so that the main valve rod cannot be pushed out bypressure in an inflating process; and therefore, the safety and stability in a testing process are ensured.

Description

technical field [0001] The invention belongs to the technical field of storage tanks, and in particular relates to a valve core opening device. Background technique [0002] The storage tank is the fuel storage device of the attitude control engine power system, which provides power fuel storage space for the attitude control power system, and has high requirements for air tightness. Therefore, the airtightness test should be carried out before the liquid rocket engine fuel is filled, so as to ensure that the cylinder has enough pressure to squeeze the liquid fuel from the storage tank to the combustion chamber. At present, the air-tightness of the storage tank is detected by the method of inflating and maintaining pressure. That is, the detection gas is injected into the storage tank, and the leakage rate of the storage tank is detected by opening or closing the valve core of the storage tank. Maintain some pressure. [0003] In the above-mentioned detection process of i...

Claims

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Application Information

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IPC IPC(8): B25B27/24G01M3/32
CPCB25B27/24G01M3/32Y02E60/32
Inventor 段立立刘广续许静胡敏王永鹏李华易霞
Owner XIAN SPACE ENGINE CO LTD
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