An explosion-proof fire-stop breathing valve

A breathing valve and fire-blocking technology, which is applied in the direction of safety valves, balance valves, valve devices, etc., can solve the problems of airtightness and flexibility that cannot be balanced, and affect the performance of breathing valves, so as to solve the problem of airtightness and flexibility that cannot be balanced , Increase the effect of lubricity

Inactive Publication Date: 2011-12-07
TIANJIN HENGREN GASOLINEEUM EQUIP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The valve disc of the existing explosion-proof and fire-resistant breathing valve has the technical problem that the airtightness and flexibility cannot be balanced, which greatly affects the performance of the breathing valve

Method used

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  • An explosion-proof fire-stop breathing valve
  • An explosion-proof fire-stop breathing valve

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Embodiment Construction

[0013] For further illustrating the present invention, now cooperate with accompanying drawing to elaborate:

[0014] An explosion-proof and fire-resistant breathing valve, which consists of a valve cover 1, a valve body 2 and an air flow channel 3, the valve cover 1 and the valve body 2 are fixedly connected by bolts, the air flow channel 3 is placed at the inner central axis of the valve body 2, and also includes Positive pressure valve disc 4 and negative pressure valve disc 5, the positive pressure valve disc 4 is vertically fixed on the upper end of the air flow channel 3 through the valve disc motion control device, and the negative pressure valve disc 5 is vertically fixed on the air flow channel 3 through the valve disc motion control device At the lower end, the positive pressure valve disc 4 and the negative pressure valve disc 5 are circular airbags, and nitrogen is filled between the positive pressure valve disc 4 and the negative pressure valve disc 5, and the valv...

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PUM

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Abstract

The invention provides an explosion-proof and fire-resistant breathing valve, which is composed of a valve cover, a valve body and an air flow passage, the valve cover and the valve body are fixedly connected by bolts, the air flow passage is placed at the central axis inside the valve body, and a positive pressure valve is also included The positive pressure valve disc is vertically fixed on the upper end of the air flow passage through the valve disc motion control device, and the negative pressure valve disc is vertically fixed on the lower end of the air flow channel through the valve disc motion control device. The positive pressure valve disc and The negative pressure valve disc is a circular air bag; the positive pressure valve disc and the negative pressure valve disc are designed as a circular air bag structure, which increases the lubricity of the valve disc and effectively solves the airtightness of the existing breathing valve. The technical problem that can not be balanced with flexibility, and the structure is simple and easy to operate.

Description

technical field [0001] The invention relates to a fire-blocking ventilation safety facility for an oil storage tank, in particular to an explosion-proof fire-stop breathing valve. Background technique [0002] The working principle of the explosion-proof fire-stop breathing valve is to use a spring limit valve plate, which is determined by the positive and negative pressure to exhale or inhale. The breathing valve should have two functions of releasing positive pressure and negative pressure. Specifically: when the container is under positive pressure, breathing The valve opens to exhale gas to release positive pressure; when the container is under negative pressure, the fire-stop breathing valve opens to inhale gas to release negative pressure. This ensures that the pressure is within a certain range, thereby ensuring the safety of the container. [0003] The valve disk of the existing explosion-proof and flame-retardant breathing valve has the technical problem that airti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/19
Inventor 邢明明
Owner TIANJIN HENGREN GASOLINEEUM EQUIP
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