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Hydraulic control ball valve system and control method

A ball valve, hydraulic control technology, applied in valve details, valve device, valve operation/release device, etc., can solve the problem of not completely eliminating water hammer, valve rules are very different, hydraulic loss and other problems, to achieve less wear and tear , Small hydraulic loss, the effect of eliminating water hammer

Pending Publication Date: 2018-09-14
WUHAN DAYU VALVE
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] 1. Poor adaptability, not smart enough, greatly affected by the pipeline load, the valve law varies greatly under different load conditions, and cannot completely eliminate the water hammer (water hammer when the valve is opened, water hammer when the valve is closed, and water hammer when the pump stops due to accidents)
[0004] 2. The hydraulic loss is large. Due to the complex flow path of the water pump control valve, the general hydraulic loss is 3-5m under normal water delivery speed; the smaller the caliber of the hydraulic control butterfly valve, the greater the hydraulic loss, and the hydraulic loss of small and medium caliber (below DN1800) is generally 0.4 ~1m, so it is generally only used in large-diameter water pipelines

Method used

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  • Hydraulic control ball valve system and control method
  • Hydraulic control ball valve system and control method

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 and image 3 As shown, a hydraulically controlled ball valve system of the present invention includes a control cabinet 100, a hydraulic station 200, and an eccentric ball valve 300. The control cabinet 100 adopts an intelligent PLC control system, which can communicate with the central control room and can feed back the real-time status of the eccentric ball valve 300. to the central control room, and can accept the action commands of the central control room, so as to realize the linkage with other equipment such as water pumps; the hydraulic station 200 controls the movement of the piston rod of the hydraulic cylinder 400, and the piston rod of the hydraulic cylinder 400 drives the driving shaft 306 of the eccentric ball valve 300 through the crank Rotate, so as to drive the ball 303 to rotate, and then realize the o...

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Abstract

The invention belongs to the technical field of pipeline valves, and particularly relates to a hydraulic control ball valve system and a control method. The hydraulic control ball valve system comprises an eccentric ball valve, a hydraulic station and a control cabinet, and the hydraulic station comprises oil cylinders, an oil supplement pump, an energy accumulator, a first electromagnetic valve,a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve and a sixth electromagnetic valve. According to the hydraulic control ballvalve system and the control method, the adopted eccentric ball valve is improved on the basis of a full-bore eccentric ball valve, the characteristic that the hydraulic loss of the full-bore eccentric ball valve is zero is inherited firstly, in addition, the abrasion is small, and the service life is long; and then a set of intelligent hydraulic control system (namely the control cabinet and thehydraulic station) is additionally arranged, and through the design of the excellent hydraulic control system and an intelligent control system, the effect of completely eliminating the water hammer can be achieved.

Description

technical field [0001] The invention belongs to the technical field of pipeline valves, and in particular relates to a hydraulic control ball valve system and a control method. Background technique [0002] There are two main types of check valves used in traditional pumping stations: one is a water pump control valve that is hydraulically controlled, and the other is a hydraulically controlled (hammer) butterfly valve that is controlled by a hydraulic system. Although these two types of valves both have two-stage fast and slow closing and have the function of eliminating part of the water hammer, they have the following disadvantages: [0003] 1. Poor adaptability, not smart enough, greatly affected by the pipeline load, the valve law varies greatly under different load conditions, and cannot completely eliminate the water hammer (water hammer when the valve is opened, water hammer when the valve is closed, and water hammer when the pump stops due to accidents) . [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/122F16K5/06F16K47/02F15B1/02F15B11/08
CPCF15B1/021F15B11/08F16K5/06F16K5/0647F16K31/122F16K47/023F15B2211/20576F15B2211/212
Inventor 李习洪陈亮马志祥
Owner WUHAN DAYU VALVE
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