Intrinsic safety electromagnet for valve

Abstract

The invention relates to an intrinsic safety electromagnet for a valve, which mainly and structurally comprises a casing, an iron core, a framework, a coil, a guide rod, a push rod, a circuit board, a connector base, a sealing cover and an end cover. The intrinsic safety electromagnet adopts a design of mechanical and electrical combination, greatly improves the thrust and the travel, is advanced in design, has a compact structure, and is safe, stable and reliable, convenient to install and use, and ideal.

Description

Technical field [0001] The invention relates to an intrinsically safe electromagnet for valves, which belongs to the technical field of design and manufacture of underground electrical equipment in coal mines. Background technique The automatic control of underground equipment in coal mines is mostly completed by solenoid valves. The key component of solenoid valves is electromagnets. Electromagnets commonly used in underground mines are intrinsically safe and flameproof, and intrinsically safe electromagnets have lower driving current than flameproof electromagnets. , Low heat generation, simple wiring, compact structure, especially for continuous electrical operation, which greatly facilitates downhole maintenance and increases safety; but the general intrinsically safe electromagnet has small thrust and short stroke, requiring a small valve diameter. This results in poor pollution resistance and poor reliability, which hinders the application of intrinsically safe electroma...

AI Technical Summary

Problems solved by technology

The automatic control of coal mine underground equipment is mostly completed by solenoid valves. The key components of solenoid valves are electromagnets. Electromagnets commonly used in underground mines are intrinsically safe and flameproof. The driving current of intrinsically safe electromagnets is smaller than that of flameproof electromagnets. , low calorific value, simple wiring, compact structure, especially continuous power operation, which greatly facilitates underground maintenance and increases safety; but the general intrinsically safe electromagnet has small thrust and short stroke, requiring a small valve aperture. It leads to poor anti-pollution ability and poor reliability, which hinders the application of intrinsically safe electromagnets

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