Coal safety explosion-proof electric gate valveAs a key equipment in flammable and explosive places such as mines and coal mines, its structural design integrates multiple characteristics of safety, efficiency, and durability, becoming an important cornerstone for ensuring industrial production safety. Starting from the core structural characteristics, we will delve into its technological advantages.

1、 Explosion proof enclosure: the first line of defense for safety protection

Coal safety explosion-proof electric gate valveThe shell is made of special explosion-proof materials, which comply withGB3836.1-2000The standard "General Requirements for Explosion proof Electrical Equipment for Explosive Environments" can effectively isolate sparks or high temperatures caused by internal electrical equipment failures, and prevent external combustible gases from entering the valve body and causing explosions. Its protection level usually reachesIP68Even in harsh mining environments, it can ensure long-term stable operation.

2、 Bidirectional sealing structure: reliable guarantee of zero leakage

The valve adopts a bidirectional sealing design, which ensures zero leakage under both forward and reverse pressure through pressure self tightening sealing or valve body and valve cover gasket sealing structure. This design not only simplifies the installation process (without installation direction requirements), but also automatically adjusts the fit between the valve disc and the valve seat sealing surface through the structure of the double gate plate with a universal top in the middle, which can maintain high sealing performance even after long-term use. The sealing surface adopts the cobalt chromium tungsten hard alloy plasma spray welding process, which has high hardness and strong wear resistance, significantly extending the service life.

3、 Low resistance flow channel: a model of efficient energy utilization

The channel design has been optimized with a low flow resistance coefficient, which can provide higher flow rate and reduce energy loss in the pipeline system. When the valve is fully opened, the gate is parallel to the axis of the flow channel, reducing the resistance of the medium passing through and minimizing the erosion of the gate by the working medium, protecting key components. This design not only improves energy efficiency, but also reduces maintenance frequency.

4、 High strength valve stem and actuator: the core support for stable operation

The valve stem is made of nitriding steel and has undergone nitriding treatment on the surface. It has high hardness, abrasion resistance, and corrosion resistance, and can withstand wear caused by long-term frequent operation. Electric actuators are equipped with torque control mechanisms, on-site operating mechanisms, and manual controls/Electric switching mechanism, supporting on-site operation, remote controlPLCcontrol and4-20mAIntelligent control of current input and output, with high operational flexibility. In addition, the actuator also has multiple safety functions such as short circuit protection, overload protection, and undervoltage protection to ensure stable operation under complex working conditions.

5、 Modular design: ease of maintenance and upgrade

The valve adopts a modular design as a whole, and all components such as valve disc, valve seat, valve stem, etc. are interchangeable. During maintenance, only damaged parts need to be replaced, without the need for overall replacement, which reduces maintenance costs. Meanwhile, the valve can be installed at any position in the pipeline, with flexible installation space requirements, further enhancing the convenience of use.