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Hydraulic automatic reversing device

A technology of automatic reversing and water pressure, applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of frequent replacement of motors, poor reliability, and easy contamination of work objects, etc., to avoid excessive space occupation , the effect of avoiding pollution

Active Publication Date: 2017-09-29
CHINA NUCLEAR POWER OPERATION TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the nozzle swing of the existing sludge washing gun needs to be driven by a motor, the reliability is poor, the motor needs to be replaced frequently and the working object is easy to be polluted, and it provides a high-integration, moisture-resistant, high-reliability Unique hydraulic automatic reversing device

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 As shown, a hydraulic automatic reversing device includes an automatic reversing valve 1, a reciprocating hydraulic cylinder 2, a valve body 3, a one-way valve II4, a throttle valve 5, a one-way valve I6, a nozzle assembly 18 and a transfer Body 19. The automatic reversing valve 1 and the reciprocating hydraulic cylinder 2 are installed inside the valve body 3, and the reciprocating hydraulic cylinder 2 is located on the right side of the automatic reversing valve 1. The one-way valve II4 , the throttle valve 5 and the one-way valve I6 are all located inside the valve body 3 . The adapter body 19 is installed at the rear end of the valve body 3 , and the nozzle assembly 18 is installed at the front end of the valve body 3 . The automatic reversing valve 1 drives the reciprocating hydraulic cylinder 2 . The reciprocating hydra...

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Abstract

The invention relates to the technical field of maintenance and repair of nuclear power plant equipment, in particular to a water pressure automatic reversing device, the purpose of which is to solve the problem that the nozzle swing of the existing sludge washing gun needs to be driven by a motor, the reliability is poor, the motor needs to be replaced frequently, and the working object is easily polluted The problem. It is characterized in that it includes an automatic reversing valve, a reciprocating hydraulic cylinder, a valve body, a one-way valve II, a throttle valve, a one-way valve I, a nozzle assembly and an adapter body; the automatic reversing valve and the reciprocating hydraulic cylinder are installed Inside the valve body, the reciprocating hydraulic cylinder is located on the right side of the automatic reversing valve; the check valve II, throttle valve, and check valve I are all located inside the valve body; the adapter body is installed at the rear end of the valve body, and the nozzle assembly Installed on the front end of the valve body. The hydraulic automatic reversing valve of the present invention plus two pairs of one-way valves can control the automatic reversing of the reciprocating hydraulic cylinder and push the reciprocating hydraulic cylinder only relying on high-pressure water without any other medium, power and control signals. The piston walks.

Description

technical field [0001] The invention relates to the technical field of maintenance and repair of nuclear power plant equipment, in particular to a hydraulic automatic reversing device. Background technique [0002] After years of operation in nuclear power plants, a lot of sludge has been deposited on the tube plate of the evaporator (heat transfer tube). These sludges will squeeze the heat transfer tubes or aggravate and accelerate the corrosion of the heat transfer tubes, resulting in the rupture of the heat transfer tubes. In order to reduce the harm of the deposited sludge to the evaporator, it is necessary to remove the deposited sludge. A sludge flushing gun with a swingable gun head nozzle is used to complete the sludge flushing. The swing of the nozzle of the existing mud washing gun relies on the micro-motor embedded in the gun head to drive a pair of bevel gears to rotate. [0003] This built-in micro-motor gun head has a very short lifespan due to factors such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
Inventor 余汇涛张丽萍刘强周淼
Owner CHINA NUCLEAR POWER OPERATION TECH
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