An outdoor self-heating antifreeze butterfly valve

Abstract

The invention discloses an outdoor self-heating antifreeze butterfly valve, which belongs to the field of butterfly valves. It is an outdoor self-heating antifreeze butterfly valve. This solution can be realized when the water in the valve body freezes due to low temperature after the valve body is installed outdoors. , by opening the plugging head, the air enters the T-shaped pipe and reacts with the self-heating material package, thereby making the self-heating material package heat, and after the self-heating material package reacts with the air to generate heat, it will be released by the barrier rod The heat on the self-heating material package conducts and melts the frozen water in the valve body. At the same time, the deformation spring will deform due to the heat of the self-heating material package and push the slider into the rotating groove to contact the rotating rod, so that the heat-absorbing block will automatically The heat on the heat-generating material package is transferred to the valve plate through the heat-conducting filler, so that the frozen water in the valve body can be melted faster, and when melting, the larger frozen water block can be blocked by the blocking rod, making it difficult to damage the pipeline. A blockage occurs.

Description

technical field [0001] The invention relates to the field of butterfly valves, in particular to an outdoor self-heating antifreeze butterfly valve. Background technique [0002] Butterfly valve, also known as flap valve, is a regulating valve with simple structure, which can be used for switching control of low-pressure pipeline medium. A kind of valve, the valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjustment. The butterfly valve is usually less than 90° from fully open to fully closed, and the butterfly valve and butterfly rod itself have no Self-locking ability, for the positioning of the butterf...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when the butterfly valve is installed outdoors, in cold areas, the water in the butterfly valve may freeze due to the low temperature, which will cause the butterfly valve to be blocked and affect the use.

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