Novel composite gate valve assembly

A compound, gate valve technology, applied in sliding valves, valve details, valve devices, etc., can solve problems such as dirt accumulation, pressure drop and increase time, local pressure, etc.

Inactive Publication Date: 2016-11-16
DEYANG DIXINJIA VALVE MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The passage part of the gate valve of the above-mentioned patent is easy to cause the accumulation of dirt, thus affecting the effect of the gate valve
In addition, when the gate valve channel of the above patent is opened and closed, the instantaneous pressure drop and increase time are too fast, resulting in excessive local pressure and easy damage to the valve.

Method used

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  • Novel composite gate valve assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A new composite gate valve assembly includes a water inlet pipe 100, a gate valve 200 and an outlet pipe 300, the water inlet pipe 100 and the gate valve 200 are fixedly connected by a high-pressure threaded flange 400, and the gate valve 200 and the outlet pipe 300 Fixedly connected by the butt welding flange 500, the outlet pipe 300 and the water inlet pipe 100 are provided with a pipe sight glass 600; A central large hole and a central small hole located around the central large hole are provided, and the diameter of the central large hole is 1.5-2.8 times that of the central small hole; the gate valve 200 includes a valve body 11, and the two ends of the valve body 11 A water inlet channel 12 and a water outlet channel 13 are provided, a cavity 14 is arranged between the water inlet channel 12 and the water outlet channel 13, a gate 15 is arranged in the cavity 14, and the top of the gate 15 is provided with The switch handwheel 16, the gate plate 15 is provided wit...

Embodiment 2

[0032]A new composite gate valve assembly includes a water inlet pipe 100, a gate valve 200 and an outlet pipe 300, the water inlet pipe 100 and the gate valve 200 are fixedly connected by a high-pressure threaded flange 400, and the gate valve 200 and the outlet pipe 300 Fixedly connected by the butt welding flange 500, the outlet pipe 300 and the water inlet pipe 100 are provided with a pipe sight glass 600; A central large hole and a central small hole located around the central large hole are provided, and the diameter of the central large hole is 1.5-2.8 times that of the central small hole; the gate valve 200 includes a valve body 11, and the two ends of the valve body 11 A water inlet channel 12 and a water outlet channel 13 are provided, a cavity 14 is arranged between the water inlet channel 12 and the water outlet channel 13, a gate 15 is arranged in the cavity 14, and the top of the gate 15 is provided with The switch handwheel 16, the gate plate 15 is provided with...

Embodiment 3

[0042] A new composite gate valve assembly includes a water inlet pipe 100, a gate valve 200 and an outlet pipe 300, the water inlet pipe 100 and the gate valve 200 are fixedly connected by a high-pressure threaded flange 400, and the gate valve 200 and the outlet pipe 300 Fixedly connected by the butt welding flange 500, the outlet pipe 300 and the water inlet pipe 100 are provided with a pipe sight glass 600; A central large hole and a central small hole located around the central large hole are provided, and the diameter of the central large hole is 1.5-2.8 times that of the central small hole; the gate valve 200 includes a valve body 11, and the two ends of the valve body 11 A water inlet channel 12 and a water outlet channel 13 are provided, a cavity 14 is arranged between the water inlet channel 12 and the water outlet channel 13, a gate 15 is arranged in the cavity 14, and the top of the gate 15 is provided with The switch handwheel 16, the gate plate 15 is provided wit...

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Abstract

The invention relates to a valve, in particular to a novel composite gate valve assembly. The novel composite gate valve assembly comprises a water inlet pipeline, a gate valve and a water outlet pipeline. The water inlet pipeline and the gate valve are fixedly connected through a high-pressure threaded flange. The gate valve and the water outlet pipeline are fixedly connected through a welding neck flange. Each of the water outlet pipeline and the water inlet pipeline is provided with a pipeline sight glass. A water inlet channel and a water outlet channel are arranged at the two ends of a valve body. A cavity is formed between the water inlet channel and the water outlet channel. A gate plate is arranged in the cavity. A switch hand wheel is arranged on the top of the gate plate. A passing hole is formed in the gate plate. A transverse filter net is arranged at the bottom of the cavity. A through hole is formed in the middle portion of the transverse filter net and is the same as the cross section of the gate plate in shape. The gate plate penetrates the filter net, and a replacing opening used for drawing the filter net is formed in the side face of the valve body. According to the novel composite gate valve assembly, dirt accumulated in the valve body can be discharged, and the instantaneous pressure intensity in the valve can be relieved.

Description

technical field [0001] The invention relates to a valve, in particular to a novel composite gate valve assembly. Background technique [0002] The gate valve is a gate of the opening and closing part. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and the parameters of the gate are different. To improve its manufacturability and make up for the deviation of the sealing surface angle during processing, this kind of gate is called elastic gate. When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, only by the medium pressure to press the sealing surface of the gate plate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most gate valves adopt forced sealing, that is to say, when the valve is closed, the gate must be pressed against the valve seat by external force to ensure the tig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/60F16K3/30F16K27/04B01D35/04
CPCB01D35/04F16K3/30F16K27/044F16K31/60
Inventor 黄斌刘波唐明元
Owner DEYANG DIXINJIA VALVE MFR
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