Silencing micro-resistance slow-closing butterfly check valve

A check valve and slow-closing technology, which is applied in the field of sound-absorbing micro-resistance slow-closing butterfly check valves, can solve the problems of noise generation and inability to filter impurities

Pending Publication Date: 2021-05-07
WUHU JINMAO FLUID TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides a slow-closing butterfly check valve with noise reduction and micro-resista

Method used

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  • Silencing micro-resistance slow-closing butterfly check valve
  • Silencing micro-resistance slow-closing butterfly check valve
  • Silencing micro-resistance slow-closing butterfly check valve

Examples

Experimental program
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Embodiment

[0020] see Figure 1-3 , the present invention provides the following technical solutions: a slow-closing butterfly check valve with noise reduction and micro-resistance, including a check valve 1, and both sides of the check valve 1 are fixedly connected with a first flange 2 and a second flange Disc 4, one side of the second flange 4 is fixedly connected with a protrusion 20, the outer surface of the protrusion 20 is threadedly connected with a connecting pipe 10, and the two sides of the connecting pipe 10 are respectively fixedly connected with the third flange 6 and the second flange. Four flanges 11, the bottom of the inner wall of the connecting pipe 10 is provided with a draw-in groove, the bottom of the inner wall of the draw-in groove is overlapped with a connection block 14, and the top of the connection block 14 is fixedly connected with a filter plate 15, and the number of filter plates 15 is two. Through the setting of the filter plate 15, the impurities in the w...

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PUM

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Abstract

The invention belongs to the technical field of valves, and relates to a silencing micro-resistance slow-closing butterfly check valve. The check valve comprises a check valve body, the two sides of the check valve body are fixedly connected with a first flange plate and a second flange plate, one side of the second flange plate is fixedly connected with a protrusion, and the outer surface of the protrusion is in threaded connection with a connecting pipe. The silencing micro-resistance slow-closing butterfly check valve has the beneficial effects that a first interlayer and a second interlayer are arranged, the interlayers have the sound absorption function, and noise of the check valve and a connecting pipe can be isolated; impurities in water can be filtered through arrangement of a filtering plate, and the situation that the impurities damage the check valve is avoided; through arrangement of a fixing block, a third flange plate, a third threaded hole, a threaded column and a threaded cap, the second flange plate and the connecting pipe can be fixed; and through arrangement of a third bolt and a connecting plate, the filtering plate can be replaced and cleaned.

Description

technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a slow-closing butterfly check valve with noise reduction and micro-resistance. Background technique [0002] Valves are widely used in various sectors of the national economy, such as water supply and drainage and water treatment industrial piping systems, petroleum, chemical industry, metallurgy, electric power, textile light industry, machinery manufacturing, construction and national defense military industry, etc. In recent years, there are many kinds of butterfly check valves used in various fields, especially in water supply and drainage and water treatment industrial pipelines. Among them, most of the valves that have appeared have problems such as short service life, waste of energy, and high cost due to various defects in the structure. For example, most of the valve bodies and valve plates of existing valves are welded components, and the thickness of the r...

Claims

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Application Information

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IPC IPC(8): F16K47/02F16L23/024B01D29/00B01D29/03B01D35/02
CPCF16K47/02F16L23/024B01D29/03B01D35/02B01D29/01
Inventor 孙述全孙雄
Owner WUHU JINMAO FLUID TECH CO LTD
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