Negative pressure balance leaking stoppage valve
A balanced and negative pressure technology, applied in the direction of balance valve, safety valve, valve device, etc., can solve the problem of fluid volatilization or overflow, and achieve the effect of preventing volatilization and entering the container
Inactive Publication Date: 2005-03-23
李玉喜
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Problems solved by technology
For volatile fluids, it is easy to cause evaporation or spillage
Method used
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[0015] Install a filter screen (1) on the valve body (2), adorn the sealing spool (3) in the valve body (2), adorn a support (5) on the periphery of the sealing spool (3), and adorn a spring under the support ( 8), the spring (8) is fixed on the lower valve body (4), and the upper valve body is tightly connected with the lower valve body.
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The invention refers to a negative pressure balance leak stoppage valve equipped on the container. Because fluid body of the sealed container will bring negative pressure injured the container in working, it must be eliminated. The solve method is that it is equipped filter screen in the valve body to prevent the outside impurity from entering the container. A seal valve core is equipped in the valve body. A bear frame is equipped on the under-part of the seal valve core. A spring fixed on down valve body is equipped at the bottom of the bear frame. With the action of the spring power the seal valve core and the valve body form to seal to prevent the fluid from volatizing. The container will be open with action of the differential pressure when it brings the negative pressure. The outside fluid will enter the container by the negative pressure balance leak stoppage valve. When the air pressure of the container is basically equal to the outside it will close. So this can eliminate the influence of the negative pressure, prevent the fluid from volatizing, and prevent the impurity from entering.
Description
Technical field [0001] The invention is a device mainly used in various sealed containers, which can automatically balance the negative pressure when the negative pressure is generated in the sealed container, and can prevent the fluid in the container from overflowing. Background technique [0002] At present, during the use of various sealed containers, due to the continuous reduction of fluid use, negative pressure is often generated, and the container will be damaged to a certain extent due to the influence of negative pressure. Therefore, this negative pressure must be reduced to a minimum or basically eliminated. The usual practice at present is to connect a relatively long breathing tube on the top of the container. For volatile fluids, it is easy to cause volatilization or spillage. Its loss and harm are obvious. Contents of the invention [0003] The main purpose of the present invention is to eliminate the negative pressure generated during the use of the flui...
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IPC IPC(8): F16K17/04
Inventor 李玉喜
Owner 李玉喜