Large-flow pilot-operated intrinsically safe electromagnetic water supply valve for mining emulsion pump station and use method
A technology of emulsion pump station and water replenishment valve, which is applied in the direction of fluid pressure actuating device, servo motor assembly, mechanical equipment, etc., can solve the problems of low rated working pressure, can not meet the use requirements, etc., and achieves convenient installation and maintenance, light weight , the effect of small size
Active Publication Date: 2020-06-12
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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Problems solved by technology
[0002] At present, high water-based emulsion is mainly used as the transmission medium in the hydraulic system of fully mechanized mining face in China. The imported intrinsically safe electromagnetic water replenishment valve used in the liquid supply electric control system of the liquid tank of the emulsion pump station is mostly explosion-proof pouring two-position valve. Through solenoid valve, the explosion-proof grade of the same type of electromagnetic water replenishment valve in China is Class II, and the rated working pressure is low, which usually cannot meet the requirements of use.
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[0021] In conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
[0022] Such as figure 1 The shown large-flow pilot-operated intrinsically safe electromagnetic water replenishment valve for mining is composed of a main valve assembly 1, a two-position two-way pilot valve 2, a control rod assembly 3, and an intrinsically safe electromagnet 4. The main valve assembly 1 includes a main valve body 101, a spring pressure seat 102, a main valve spool 103, a return spring 104, a sealing ring and a guide ring 105, a damping screw plug 106 and a main valve seat 107; the main valve body 101 is Cuboid valve block, one end of the main valve body 101 is used to install the installation hole of the main valve core 103 and the main valve seat 107, the other end of the main valve body 101 is the P port of the electromagnetic water replenishment valve, and the surface of the main valve body 101 is Set the T port of the electromagnetic r...
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The invention relates to the field of mining emulsion pump station equipment, in particular to a large-flow pilot-operated intrinsically safe electromagnetic water supply valve for a mining emulsion pump station. The large-flow pilot-operated intrinsically safe electromagnetic water supply valve comprises a main valve assembly, a two-position two-way pilot valve, a control rod assembly and an intrinsically safe electromagnet. The two-position two-way pilot valve is connected with the upper side face of the main valve assembly through bolts; and finally a P port of the electromagnetic water supply valve communicates with a P1 port of the two-position two-way pilot valve through a damping hole of a damping screw, a spring cavity of a main valve core and a P' port of the main valve assembly,and a T port of the electromagnetic water supply valve communicates with a T1 port of the two-position two-way pilot valve through a technological hole 1, a technological hole 2 and a T' port of the main valve assembly. According to the large-flow pilot-operated intrinsically safe electromagnetic water supply valve, the modular design is adopted, the pressure and flow level of a main valve can bechanged according to actual needs to meet the requirements of different working conditions, and the large-flow pilot-operated intrinsically safe electromagnetic water supply valve has very high universality and practicality.
Description
technical field [0001] The invention relates to the field of mining emulsion pumping station equipment, in particular to a large-flow pilot intrinsically safe electromagnetic water replenishing valve for an emulsion pumping station. Background technique [0002] At present, high water-based emulsion is mainly used as the transmission medium in the hydraulic system of fully mechanized mining face in China. The imported intrinsically safe electromagnetic water replenishment valve used in the liquid supply electric control system of the liquid tank of the emulsion pump station is mostly explosion-proof pouring two-position valve. The explosion-proof grade of the same type of electromagnetic water replenishing valve in China is Class II, and the rated working pressure is low, which usually cannot meet the use requirements. Contents of the invention [0003] In order to solve the above problems, the present invention provides a large-flow pilot-operated intrinsically safe elect...
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IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 黄帅王希鹏陈明健王晓凯刘文武贾建伟贾建文金雪琪王以超程俊强
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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