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Full-pressure high-speed exhausting air-supplying special valve

A special valve, high-speed technology, applied in safety valves, valve details, balance valves, etc., can solve the problems of unstable lever structure, jamming, easy water leakage and air leakage, etc., to improve discharge permeability, improve sealing performance, The effect of automatic sealing of the valve

Active Publication Date: 2013-04-17
ZHENGZHOU ALDU VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing exhaust valves mainly use hollow floating balls combined with the principle of levers to control the opening and closing of the exhaust port. However, the commonly used floating balls are generally hollow stainless steel balls, which are difficult to manufacture, and the strength of hollow floating balls is low. It is easy to be deformed under the condition of atmospheric hammer or water hammer; moreover, the structure of the lever is unstable and prone to jamming, so the hollow float and lever often cause a lot of trouble in use, and it is difficult to meet the exhaust needs of rapid opening and closing; Although some designs use pistons instead of hollow floating balls and levers, the sealing performance of the pistons is often not good enough, it is easy to leak water and air, and the valve discharge effect is not good in the case of water and gas.
Therefore existing design has some inconveniences in normal use

Method used

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  • Full-pressure high-speed exhausting air-supplying special valve

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Embodiment Construction

[0023] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0024] Such as figure 1 As shown, a full-pressure high-speed exhaust and air supplement valve includes a cylinder 1, an exhaust and air supplement chamber 2 arranged at the bottom of the cylinder 1, and a main valve chamber arranged at the bottom of the exhaust and air supplement chamber 2. body 3, a guide exhaust cylinder 4 arranged in the main valve cavity 3, a sealing floating body 5 arranged in the guide exhaust cylinder 4, a piston spring 6 and a main valve piston having a vertical through hole 7; The sealing floating body 5 is a cylindrical structure with an open bottom. The benefit of setting the exhaust and air supplement chamber 2 independently is to avoid interference from parts such as springs during exhaust or air supplement.

[0025] The main valve piston includes a piston rod 8 and a cylinder piston and a sealing baffle 10...

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Abstract

The invention provides a full-pressure high-speed exhausting air-supplying special valve which comprises a cylinder, a main valve cavity arranged on the lower portion of the cylinder, a guiding exhaust barrel arranged in the main valve cavity, a sealing floating body arranged in the guiding exhaust barrel, a piston spring and a main valve piston with a vertical through hole. The main valve piston comprises a piston column, a cylinder piston and a sealing baffle, wherein the cylinder piston and the sealing baffle are arranged at the upper end and the lower end of the piston column respectively. A side wall on the lower portion of the cylinder is provided with an exhausting air-supplying port, a cavity wall of the main valve cavity is provided with a main valve port, the piston spring is sleeved on the piston column and located between the cylinder piston and an upper cavity wall of the main valve cavity, and the upper end of the sealing floating body corresponds to a lower port of the vertical through hole. The full-pressure high-speed exhausting air-supplying special valve has the advantages that the special valve is scientific in design, automatic sealing of the valve can be achieved without utilizing a floating ball and a lever, the sealing performance is good, and the discharging performance is good when water and gas alternate with each other.

Description

technical field [0001] The invention relates to an exhaust valve, in particular to a full-pressure, high-speed exhaust and air supplement special valve used for explosion-proof and leak-proof in pressurized water supply pipelines. Background technique [0002] Existing exhaust valves mainly use hollow floating balls combined with the principle of levers to control the opening and closing of the exhaust port. However, the commonly used floating balls are generally hollow stainless steel balls, which are difficult to manufacture, and the strength of hollow floating balls is low. It is easy to be deformed under the condition of atmospheric hammer or water hammer; moreover, the structure of the lever is unstable and prone to jamming, so the hollow float and lever often cause a lot of trouble in use, and it is difficult to meet the exhaust needs of rapid opening and closing; Although some designs use pistons instead of hollow floats and levers, the sealing performance of the pist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/18F16K31/126F16K31/20
Inventor 吴建涛王万顺葛海州方红亮
Owner ZHENGZHOU ALDU VALVE CO LTD
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