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Ball valve sealing seat test mould and use method

A test mold and sealing seat technology, which is used in fluid tightness testing, machine/structural component testing, measuring devices, etc., can solve the problem of not being able to guarantee the sealing performance of the second valve seat assembly, adverse effects on material properties, and delaying construction periods. and other problems, to achieve the effect of improving the qualification rate of one-time assembly, avoiding adverse effects and saving time

Pending Publication Date: 2019-06-14
SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES +1
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Problems solved by technology

The valve seat assembly is reassembled after adjustment or repair, and then the valve body is welded and tested. The whole process not only delays the construction period but also costs a lot, but it still cannot guarantee that the second seat assembly sealing performance test can pass, and the valve body is damaged due to repeated welding. Material properties can also adversely affect

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  • Ball valve sealing seat test mould and use method
  • Ball valve sealing seat test mould and use method

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Embodiment Construction

[0019] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0020] Embodiments of the present invention relate to a kind of ball valve sealing seat test mold, such as figure 1 As shown, it includes an upper mold 1 and a lower mold 2, the upper mold 1 is used to simulate the ball of a fully welded valve, and is connected to the ball installation end of the valve seat assembly 3 to be tested, and the lower mold 2 is used to simulate a fully welded valve The valve body is connected t...

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Abstract

The invention relates to a ball valve sealing seat test mould and a use method. The ball valve sealing seat test mould comprises an upper mould and a lower mould, wherein the upper mould is used for simulating the ball body of an all-welded valve and is connected to the ball body installation end of a valve seat component to be tested; the lower mould is used for simulating the valve body of the all-welded valve and is connected to the valve body installation end of the valve seat component to be tested; and the upper mould and the lower mould are connected in a detachable connection way to fix the valve seat component to be tested. By use of the test mould, the valve seat component can be tested before the valve is assembled, and bad influences caused by repeated welding are avoided.

Description

technical field [0001] The invention relates to the technical field of ball valve sealing test, in particular to a ball valve sealing seat test mold and a use method. Background technique [0002] The quality of valve sealing performance can be assessed by two indicators: valve leakage and valve internal leakage. Generally speaking, external leakage means that the transported medium leaks into the atmosphere through the external parts and process holes of the valve; internal leakage means that the valve is not well sealed, and the medium still flows downstream after the valve is fully closed. [0003] The fully welded ball valve body adopts a fully welded overall design, and the overall shape and structure of the valve body eliminates the possible external leakage of the split valve from the source. After eliminating the possibility of external leakage, the performance of the valve depends on the sealing performance of the seat assembly. [0004] Fully welded ball valves a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/00
Inventor 符明海杨卫东
Owner SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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