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A quick-suction and slow-discharge air valve with self-maintenance

An air valve and slow-discharge technology, which is applied in the field of quick-suction and slow-discharge air valves, can solve problems such as damage to pipelines and equipment, strong impact on pipelines, water hammer when closing valves, etc., and achieve reliable sealing, large water resistance, and air resistance. The effect of low resistance

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 quick-suction and slow-discharge air valve with self-maintenance
  • A quick-suction and slow-discharge air valve with self-maintenance
  • A quick-suction and slow-discharge air valve with self-maintenance

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Experimental program
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Effect test

Embodiment 1

[0030] Such as Figure 1~3 As shown, this embodiment provides a self-maintenance quick suction and slow discharge air valve, including an air valve body 101 and a valve assembly 102, the valve opening 103 of the air valve body 101 is connected to the valve assembly 102 through a flange seal , which is convenient for 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 are different. To repeat, this embodiment is mainly to combine the air valve and the valve assembly without changing the structure of the air valve. Under the premise of having all the original functions of the air valve, it has its own maintenance and quick suction and slow discharge functions to avoid air leakage. The sudden closing of the valve produces wate...

Embodiment 2

[0042] Such as Figure 4 As 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 quick-suction and slow-emission air valve with maintenance. The quick-suction and slow-emission air valve with maintenance comprises an air valve body and a valve module; a valve opening of the air valve body is connected with the valve module; the valve module comprises a valve body and a valve body on-off mechanism; an inner cavity of the valve body is an S-shaped runner; an air valve body connecting port and a pipe connecting port are respectively arranged at the two ends of the S-shaped runner; and the S-shaped runner is divided into left and right cavities by the valve body on-off mechanism for cutting or communicating a flow between the air valve body connecting port and the pipe connecting port. The quick-suction and slow-emission air valve with maintenance is suitable for installation in a pipe without a maintenance valve, and has no need to singly arrange the maintenance valve on the air valve; and therunner in the valve module is S-shaped, so that the resistance on water is high, the resistance on air is low, exhausting is facilitated, drainage is not facilitated, the spraying phenomenon of air-liquid two-phase currents at the closing moment of the air valve can be reduced to prevented, and the quick-suction and slow-emission function of the air valve is improved.

Description

technical field [0001] The present invention relates to the technical field of air valves, and more specifically, to a fast-inhalation and slow-discharge air valve with built-in maintenance that integrates air valve functions, maintenance functions, and strengthens the air valve's fast suction and slow discharge. Background technique [0002] In long-distance water pipelines, the backlog of airflow in the pipeline will reduce the efficiency of pipeline water filling and even make it difficult to complete it smoothly. Therefore, high-speed intake and exhaust valves (air valves) need to be used to eliminate the airflow in the pipeline when filling the pipeline. For all kinds of air valves installed on the pipeline, inspection valves should be installed at their inlets for air valve maintenance, and the maintenance of air valves is much more difficult than other valves, because the water flow in the initial stage of pipeline water supply is in an accelerated state. When the air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K27/02F16K27/08F16K47/02F16K1/00
CPCF16K1/00F16K27/02F16K27/08F16K47/02
Inventor 黄靖罗建群谢爱华欧立涛桂新春
Owner ZHUZHOU SOUTHERN VALVE
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