Water hammering prevention adjusting air exhaust valve

Abstract

The invention discloses a water hammering prevention adjusting air exhaust valve which comprises an exhaust valve body and a valve deck. A floating ball cavity and an annular cavity are formed in the exhaust valve body, a water inlet pipe end is arranged at the bottom of the floating ball cavity, and multiple exhaust hollowed-out parts are arranged at the top of the floating ball cavity. The valve deck is provided with an exhaust part and an exhaust cavity, a top sealing cover with a lifting displacement function and an annular sealing piece used for sealing fit are arranged in the exhaust cavity, a floating pressure connecting body connected with the top sealing cover is arranged in the valve deck, and an exposed floating pressure adjusting part is arranged at the top end of the floating pressure connecting body. The design that the floating pressure of the top sealing cover is adjustable is adopted, different pressure relief pressure adjusting requirements can be met, relative buffering is achieved, the water hammering prevention effect is remarkable, and meanwhile the flexible adjusting requirement of the floating pressure can be met without disassembling the valve body. The gas displacement adjusting function is achieved, the secondary speed reduction effect is achieved through gas displacement limiting, and the sufficient exhaust requirement is met by combining the floating pressure of the top sealing cover. The application range is wide, and high economic value is achieved.

Description

technical field [0001] The invention relates to an anti-hammer regulating air exhaust valve, which belongs to the technical field of exhaust valves. Background technique [0002] Exhaust valves are used in pipeline exhaust for independent heating systems, central heating systems, heating boilers, central air-conditioning, floor heating and solar heating systems. The water hammer phenomenon exists in the water network system. The water hammer phenomenon refers to the phenomenon of large pressure fluctuations and vibrations caused by rapid changes in fluid flow in a closed pipeline system. Also known as "water hammer". Its momentary pressure can greatly exceed normal pressure and often has destructive effects. In order to prevent or reduce the effect of water hammer, corresponding elimination measures can be taken, such as delaying the opening and closing time of pipelines or pumps, installing water hammer eliminators, etc. [0003] Adding an exhaust valve in the water netw...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, aiming at the problem that the self-weight and pressure regulation range of the sealing cover in the traditional exhaust valve cannot meet the flexible and instantaneous pressure release adjustment problem, a water-proof hammer-adjustable air exhaust valve is proposed

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