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Flange type silencing check valve

A check valve and flange-type technology, which is applied in the field of flange-type noise-eliminating check valves, can solve the problems of large forward pressure loss, unsatisfactory check effect, and small positive flow rate, etc., and achieve good check effect , Local water head loss is small, and the effect of reducing closing noise

Inactive Publication Date: 2018-04-13
佛山市恒爱网络科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of mechanism design and the large forward pressure loss of the above-mentioned check valves, the positive flow rate becomes smaller due to the check resistance.
Or due to mechanical wear and tear, the service life is short, the check effect is not ideal and the noise is large

Method used

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  • Flange type silencing check valve

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Effect test

Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] Such as figure 1 As shown, a flange type noise reduction check valve includes a valve body 3, a first flange 1 arranged at the water inlet end of the valve body 3 and a second flange 2 arranged at the water outlet end of the valve body 3, and the valve body 3 There is a cavity inside, and a guide device is provided in the cavity. The guide device is used to prevent the water from flowing backward. The guide device includes a first sealing plate 5, a connecting rod 4, a cover plate 8 and a valve seat 6. The valve seat 6 is fixedly arranged on the valve Inside the body 3 and close to the water outlet, the valve seat 6 is provided with a first through hole for piercing the connecting rod 4, and one end of the connecting rod 4 is connected to the first sealing plate 5, and the connecting rod 4 passes through the valve seat 6 and can be installed in...

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Abstract

The invention discloses a flange type silencing check valve. The flange type silencing check valve comprises a valve body, a first flange arranged at a water inlet end of the valve body, and a secondflange arranged at a water outlet end of the valve body; a cavity is formed in the valve body; a guide device is arranged in the cavity, and is used for placing water currents to reversely flow; the guide device comprises a first sealing plate, a connecting rod, a cover plate and a valve base; the valve base is fixedly arranged in the valve body and near the water outlet; the valve base is provided with a first through hole for enabling the connecting rod to pass through; one end of the connecting rod is connected with the first sealing plate; the connecting rod penetrates through the valve base, and can perform a reciprocating motion in the valve base; and the other end of the connecting rod is connected with the cover plate. Through the mode, the flange type silencing check valve is provided with the guide device to achieve flexible closing, good check effect, capability of effectively reducing the closing noise, novel structure, smooth liquid passing and low local water head loss.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a flange type noise reduction check valve. Background technique [0002] Check valve, also known as one-way valve or check valve, is used to prevent the medium in the pipeline from flowing backward. At present, the check valve can be divided into three types according to the structure: lift check valve, swing check valve and butterfly check valve. Lift check valve can be divided into two types: vertical and horizontal. Swing check valves are divided into three types: single flap, double flap and multi flap. Check valves are now widely used in high water level containers or other equipment that must prevent backflow. The quality of the check effect is directly related to the performance and quality of the equipment. Due to the lack of mechanism design and the large forward pressure loss of the above-mentioned check valves, the positive flow rate becomes smaller due to the check ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06F16K27/02
CPCF16K15/06F16K15/023F16K27/0209
Inventor 李洁陈丽妍
Owner 佛山市恒爱网络科技有限公司
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