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A fast-suction and slow-discharge air valve with built-in maintenance filter

A kind of air valve, slow discharge technology, applied in the direction of dispersing particle filtration, valve absorbing fluid energy device, lift valve, etc., can solve the problems of pipeline and equipment damage, strong impact on pipeline, pipe burst accident, etc., to achieve reliable sealing , Enhance the effect of fast suction and slow discharge, long service life

Active Publication Date: 2021-01-12
ZHUZHOU SOUTHERN VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the water filling speed is too fast, it will cause a strong impact on the pipeline. If the water filling speed is too fast, it will easily generate gas-liquid two-phase flow when the air valve is exhausted. The sudden closing of the air valve will cause the water hammer of the air valve to close the valve, which will cause damage to the pipeline and equipment, and in severe cases, a pipe burst accident will occur

Method used

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  • A fast-suction and slow-discharge air valve with built-in maintenance filter
  • A fast-suction and slow-discharge air valve with built-in maintenance filter
  • A fast-suction and slow-discharge air valve with built-in maintenance filter

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Experimental program
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Effect test

Embodiment 1

[0040] Such as Figure 1-9 As shown, the present embodiment provides a fast suction and slow discharge air valve with built-in maintenance filter, including an air valve body 101 and a valve assembly 102, the valve opening 103 of the air valve body 101 and the valve assembly 102 pass through a flange seal connection for easy maintenance and replacement. The main body 101 of the air valve in this embodiment uses an anti-hammer air valve for further illustration. Specifically, the patent number 201520384037.9 previously applied by our company is used. The patent name is an anti-hammer air valve. The specific structure and function will not To repeat them one by one, this embodiment mainly integrates the air valve and the valve assembly without changing the structure of the air valve, and has its own functions of maintenance, filtration and quick suction and slow discharge on the premise of having all the original functions of the air valve. , to avoid water hammer caused by sudd...

Embodiment 2

[0057] Such as Figure 10 As shown, this embodiment is basically the same as Embodiment 1, the difference is that the number of reinforcing ribs 21 is at least two, and the two reinforcing ribs 21 cross each other and are fixed on the port of the filter cartridge close to the valve cover in a cross shape. It can play the role of Embodiment 1, and can further strengthen the strength and stability of the filter cartridge with double-layer structure through a plurality of reinforcing ribs.

Embodiment 3

[0059] Such as Figure 11As shown, this embodiment is basically the same as Embodiment 1, the difference is that the air valve body 101 and the valve assembly 102 are integrated, and are integrated by casting, so that the seamless connection has a better sealing effect and avoids the leakage caused by the flange connection Point, the air valve main body 101 adopts an angle-shaped air valve, specifically the patent number 201520383478.7 applied by our company before, and the patent name is a waterproof hammer air valve, and the specific structure and function will not be repeated one by one.

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Abstract

The invention relates to the technical field of air valves, and discloses a fast-inhalation and slow-discharge air valve with maintenance filter. The fast suction and slow discharge air valve with maintenance filter includes an air valve body and a valve assembly, the valve opening of the air valve body is connected to the valve assembly, and the valve assembly includes a valve body and a valve body on-off mechanism, The inner cavity of the valve body is an S-shaped flow channel, and the two ends of the S-shaped flow channel are respectively provided with an air valve main body connection port and a pipe connection port, and the valve body on-off mechanism divides the S-shaped flow channel into two left and right chambers The body is used to cut off or connect the flow between the connection port of the main body of the air valve and the connection port of the pipeline. There is also a filter cartridge in the cavity with the connection port of the main body of the air valve. The filter cartridge is a double-layer structure, including an outer filter screen, Inner strainer and support plate. The fast suction and slow discharge air valve with built-in maintenance filter of the present invention does not need to be equipped with a separate maintenance valve and filter for the air valve, and has all the original functions of the air valve.

Description

technical field [0001] The present invention relates to the technical field of air valves, and more specifically, relates to a fast-inhalation and slow-discharge air valve with maintenance and filtration that integrates air valve functions, maintenance and filtration functions, and strengthens the quick suction and slow discharge of the air valve. Background technique [0002] In long-distance water pipelines, the accumulated gas in the pipeline will reduce the efficiency of filling the pipeline and even make it difficult to complete it smoothly. Therefore, it is necessary to use a high-speed intake and exhaust valve (air valve) to remove the gas in the pipeline when filling the pipeline. For various air valves installed on the pipeline, inspection valves should be installed at the inlets for the inspection and repair of the air valves. The most common failure of the air valves to seal and leak due to debris is blocked. For the inspection valve below, disassemble and disasse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K27/02F16K47/02B01D46/24
CPCB01D46/2411F16K1/00F16K47/023B01D46/64
Inventor 黄靖谢爱华欧立涛桂新春罗建群
Owner ZHUZHOU SOUTHERN VALVE
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