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Water hammer protection device for long-distance pumping water supply system

A water supply system and long-distance technology, applied in the field of water transportation, can solve the problems of inconvenient operation and management, limited protection effect of water hammer, high cost of air tank of surge tower, etc. The effect of suppressing the hazard of water hammer

Pending Publication Date: 2017-02-15
TEJI VALVE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of surge tower (box) and air tank is high, and the operation and management are inconvenient; the air valve can only inject air when the pressure in the pipeline is lower than atmospheric pressure, so its water hammer protection effect is limited

Method used

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  • Water hammer protection device for long-distance pumping water supply system
  • Water hammer protection device for long-distance pumping water supply system
  • Water hammer protection device for long-distance pumping water supply system

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Embodiment Construction

[0014] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0015] according to figure 1 As shown, in the long-distance pump water supply system, the water inlet tank is connected to the water pump through the water pipeline, and the water pump and the water outlet tank are connected through the water pipeline. , there are multiple local high points in the water pipeline, each local high point is equipped with an air valve, and an inspection valve is installed in front of the air valve, one of the local high points is selected, and the local high p...

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Abstract

The invention relates to a water hammer protection device for a long-distance pumping water supply system. Local high points exist in a water delivery pipeline, and one local high point is connected with the water hammer protection device through a service valve; the water hammer protection device comprises a compressed air tank, pressure reducing valves, an air valve, gas transmission pipelines and solenoid valves; the water hammer protection device is provided with ventilation channels connected with the compressed air tank, the ventilation channels are formed by connecting the pressure reducing valves, the gas transmission pipelines and the solenoid valves A in sequence and connected with the air valve through the solenoid valve B. In the hydraulic transition process, when the pressure in water delivery pipeline is smaller than set pressure at outlets of the pressure reducing valves, compressed air is injected into the pipeline, water hammer damage is effectively inhibited in time, and compared with a pressure regulating tower and an air tank, the water hammer protection device is low in cost; compared with the air valve, the minimum pressure of the installation position of the device is increased, and the water hammer protection effect is good; an air injection protection long-distance pumping water supply system water hammer is high in guarantee rate, safer and more efficient.

Description

technical field [0001] The invention relates to the technical field of water delivery, in particular to a device for water hammer protection of a long-distance pump water supply system in a long-distance water delivery pipeline system. Background technique [0002] Water hammer accidents often occur in long-distance pump water supply systems due to accidental shutdown of pumps, resulting in damage to pressure pipes, water pumps, valves, etc., interruption of water supply, and major losses. The pump stop water hammer in the pump water supply system is a transition process in which there is a depressurization wave first and then a positive pressure wave. If the pressure drop can be prevented in time, the pressure rise can be effectively reduced. [0003] At present, there are two methods to prevent pressure drop during hydraulic transition: one is to inject water into the pipeline, and the other is to inject gas into the pipeline. The water hammer protection measures for inje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B1/02E03B7/02E03B7/07
CPCE03B1/02E03B7/02E03B7/07E03B7/075
Inventor 朱满林王晓敏常金梅李开来张言禾王涛李小周韩妍妍张茜惠治国
Owner TEJI VALVE GRP
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