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A hydraulic differential butterfly pump control valve

A differential type, control valve technology, applied in the direction of variable capacity pump components, pump components, valve devices, etc., can solve the problems of low reliability, small opening, uneconomical, etc., to achieve safe protection, short surface spacing, low cost effect

Active Publication Date: 2019-04-09
SHANGHAI KARON VALVES MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many problems in the domestic water pump control valve, such as the small opening of the water pump control valve at low pressure and low flow rate, large water loss, low reliability, energy consumption, uneconomical, and many adverse effects on the society. As a pipe network and pump One of the key control equipment in the past is the ingenious design of the water pump control valve, which is reasonably matched

Method used

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  • A hydraulic differential butterfly pump control valve
  • A hydraulic differential butterfly pump control valve
  • A hydraulic differential butterfly pump control valve

Examples

Experimental program
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Embodiment 1

[0048] A hydraulic differential butterfly water pump control valve, such as Figure 1~2 As shown, it includes a valve body assembly, a rocker arm 11 , a buffer cylinder 15 , an oil circuit control assembly and a differential drive assembly 8 .

[0049]The valve body assembly includes a valve body 1, a main shaft 6 arranged on the valve body 1, a butterfly plate 2 arranged in the channel of the valve body 1, a valve seat 5 fixedly connected with the valve body and an end cap group 4, the The valve body assembly adopts an inclined valve seat design, a large eccentric integral structure, and is equipped with fully open and fully closed limits. The butterfly plate 2 is a swash plate butterfly valve disc, on which a sealing ring 3 is arranged, and the sealing ring 3 is fixed on the outer edge of the butterfly plate 2 through the pressure plate 7, and the pressure plate 7 is used to make the The sealing ring 3 is easy to replace, the butterfly plate 2 is suspended on the main shaft...

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Abstract

The invention relates to a hydraulic differential butterfly-shaped water pump control valve. The hydraulic differential butterfly-shaped water pump control valve comprises a valve body assembly, a rocker arm (11), a buffering oil cylinder (15), an oil line control assembly and a differential driving assembly (8), wherein the valve body assembly comprises a valve body (1), a spindle (6), a butterfly plate (2), a valve seat (5) and an end cap assembly (4); the butterfly plate (2) is fixed on the spindle (6); the spindle (6) is in drive connection with the buffering oil cylinder (15) through the rocker arm (11); the differential driving assembly (8) consists of a water pressure assembly and an oil pressure assembly which drive each other; a water inlet valve (812) and a water drainage valve (811) are arranged on the water pressure assembly; the water inlet valve (812) is connected with a valve front water tube; and the oil pressure assembly is connected with the oil line control assembly. Compared with the prior art, the hydraulic differential butterfly-shaped water pump control valve only needs pressure of a valve front water system and does not need other external force driving sources during working, and has functions of slowly opening at the initial opening stage and slowly closing at the later closing stage.

Description

technical field [0001] The invention relates to a water pump control valve, in particular to a hydraulic differential butterfly water pump control valve. Background technique [0002] At present, there are many problems in the domestic water pump control valve, such as the small opening of the water pump control valve at low pressure and low flow rate, large water loss, low reliability, energy consumption, uneconomical, and many adverse effects on the society. As a pipe network and pump One of the key control devices in the past is the ingenious design and reasonable matching of the water pump control valve. In the waterway system, in order to increase the opening of the valve disc at low pressure and low flow rate, to prevent the hazard of water hammer when the pump is suddenly stopped and the motor current is too high to trip due to the water hammer when the pump is turned on, a water pump control valve is installed on the outlet pipe of the water pump. It is required tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/365F04B53/10
CPCF04B53/10F16K31/365
Inventor 李政宏
Owner SHANGHAI KARON VALVES MACHINERY
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