Breather valve

A breathing valve and valve cover technology, applied in the field of breathing valves, can solve problems such as economic loss, liquid outflow, and environmental pollution, and achieve the effect of protecting the environment

Inactive Publication Date: 2015-04-22
常熟市贝特机电制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, although the breathing valve can effectively solve the above problems, if the car rolls over in an accident, the liquid will easily flow out from the breathing valve, causing heavy economic losses and seriously polluting the environment.

Method used

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Embodiment Construction

[0014] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0015] see figure 1 , the embodiment of the present invention includes: a breathing valve, including: an upper valve cover 1, a lower valve cover 2 and a valve body 3, the upper valve cover 1 and the lower valve cover 2 are installed on the valve body 3 respectively The upper and lower ends, these three parts constitute the main body of the breathing valve.

[0016] A water outlet 4 is provided on the upper valve cover 1, and a sealing ring 5 is installed at the lower end of the water outlet 4, and the sealing ring 5 makes the connection between the water outlet 4 and the upper end of the piston 9 more tightly.

[0017] A water inlet 6 is provid...

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Abstract

The invention discloses a breather valve. The breather valve comprises an upper valve cover, a lower valve cover and a valve body; the upper valve cover and the lower valve cover are arranged at the upper end and the lower end of the valve body respectively; the upper valve cover is provided with a water outlet; the lower end of the water outlet is provided with a sealing ring; the lower valve cover is provided with a water inlet; the water inlet protrudes the inner surface of the lower valve cover to form a plurality of balance holes; the lower end surface of the water inlet is provided with a sealing cover; a piston is arranged in the valve body; the piston is provided with a buoyancy ring; the surface of the buoyancy ring is provided with a plurality of water holes; a hydraulic device is arranged between the buoyancy ring and the upper valve cover; a plurality of pressure sensors are uniformly distributed on the lower surface of the buoyancy ring. The breather valve is provided with a leakage-proof device, a tank opening can be blocked through the leakage-proof device when a tank rolls over to prevent the liquid from flowing out of the breather valve, and accordingly the economic loss of people can be avoided and the environment-friendly effect is achieved.

Description

technical field [0001] The invention relates to a device for maintaining the pressure in an oil tank, in particular to a breathing valve. Background technique [0002] The breathing valve is composed of a pressure valve and a vacuum valve. It is installed on the ventilation pipe of the cargo oil tank. It can be opened and closed automatically with the change of the positive and negative pressure of the oil gas in the cargo oil tank to keep the pressure difference between the inside and outside of the cargo oil tank within the allowable range. When the oil tank transport vehicle is injecting or releasing liquid, or the internal liquid rubs against each other when the vehicle is moving, resulting in a large pressure, or the internal pressure is reduced due to the volatilization of the liquid, it is necessary to make the inside of the tank or container and the outside atmosphere interact with each other. Ventilate to ensure that the internal pressure of the tank or container me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/32
CPCB65D90/32
Inventor 韩文辉
Owner 常熟市贝特机电制造有限公司
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