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Waterway pressure resistant pilot operated directional control valve

A hydraulically controlled reversing valve and pressure-resistant technology, which is applied in the direction of multi-way valves, valve devices, fluid pressure actuators, etc., can solve the problems of non-compliance with coal mine safety operation regulations and low working pressure, and achieve good market prospects. The effect of solving the problem of high pressure sealing

Active Publication Date: 2016-11-23
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the working pressure of hydraulic control water valves used in coal mine equipment is generally low. When pressurization work is required, manual ball valves are usually used as switch control. However, in most working conditions, this switch control method does not comply with coal mine safety operating regulations. Require

Method used

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  • Waterway pressure resistant pilot operated directional control valve

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Embodiment Construction

[0013] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the waterway pressure-resistant hydraulic control reversing valve includes ball valve 1, combined gasket I2, combined gasket II3, middle plate 4, end cover fastening bolts 5, end cover 6, spring I7, spring II8, end cover O type Ring 9, valve body 10, valve core 11, sealing sleeve 12, guide belt 13, sealing ring 14, bottom cover O-ring 15, bottom cover 16, bottom cover fastening bolt 17, washer 18 and ball valve fixing bolt 19. Its working pressure is relatively high, its sealing performance is good, and it has two switch modes of manual and hydraulic control.

[0015] Specifically, the waterway pressure-resistant hydraulic control reversing valve is divided into an upper valve and a lower valve, which are connected as a whole. The upper valve is a ball valve 1, and the upper valve has valve ports ⅠA and ⅢC located...

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Abstract

The invention belongs to the technical field of hydraulic control valves of a water system, and particularly relates to a waterway pressure resistant pilot operated directional control valve, which realizes the pressure resisting effect of a hydraulic control switch of the water system of coalmine equipment and increases the use convenience. The waterway pressure resistant pilot operated directional control valve comprises an upper valve and a lower valve, wherein the upper valve is a ball valve, cylindrical surface matching and interference fit are formed between an inner sealing sleeve of the lower valve and an inner wall of a channel, cone sealing is formed between the sealing sleeve and an upper shaft shoulder of a valve core, the sealing sleeve is a brass support, and both a valve body and the valve core are made of stainless steel. According to the waterway pressure resistant pilot operated directional control valve, good high-pressure working performance and longer service life of the pilot water valve are realized, and the pilot water valve has double functions of manual operation and hydraulic control.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control valves for water systems, and in particular relates to a waterway pressure-resistant hydraulic control reversing valve. Background technique [0002] In the water hydraulic system, the valve that hydraulically controls the opening and closing of the waterway is a common hydraulic control switch element. Due to the relatively high water pressure requirements in some applications, such as the dust removal and spraying systems of continuous coal mining machines, bolter machines and other equipment in coal mines, in order to improve the spray and dust reduction effects, higher water pressure is often required, which will inevitably lead to Water system components must withstand higher pressures. At present, the working pressure of hydraulic control water valves used in coal mine equipment is generally low. When pressurization work is required, manual ball valves are usually used as switch c...

Claims

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Application Information

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IPC IPC(8): F15B13/02F16K11/20
CPCF15B13/02F16K11/20
Inventor 赵江涛吕猛宋庭锋颉志军王梁张国新刘小霞李华闫飞卫红波李华聪侯卫红吕志信李刚尹汉桥
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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