Parallel valve core type high-pressure electromagnetic valve

Abstract

The invention discloses a parallel valve core type high-pressure electromagnetic valve, which comprises a main valve body, N pilot valves and N electromagnets, wherein N is more than or equal to 2; one ends of the pilot valves are connected with the main valve body; the other ends of the pilot valves are connected with the electromagnets; N main valve core components are arranged in the main valve body in parallel; each main valve core component comprises a valve base, a main valve core, a sleeve, a main valve spring, a main valve plug cap and a main valve cavity; various main valve cavities are connected with each other through a connection channel, wherein one main valve cavity is connected with a medium inlet joint; various valve base central through holes are connected with a medium outlet joint through a medium channel; each electromagnet comprises an electromagnetic coil, an armature, an adjusting screw, a push rod, an end cover, an iron core, an electromagnet shell and a control line joint; each pilot valve comprises a pilot valve base, a pilot valve sleeve, a pilot valve core, a pilot valve spring and a connection nut. The parallel valve core type high-pressure electromagnetic valve disclosed by the invention is smart in conception and reasonable in design; by adopting the parallel valve core structure, the parallel valve core type high-pressure electromagnetic valve is high in flow and quick in response; various main valve cores can be opened and closed independently; multi-stage adjustment of the flow can be realized.

Description

technical field [0001] The invention relates to the field of solenoid valves, in particular to a parallel valve core type high-pressure solenoid valve. Background technique [0002] In the high-pressure and large-flow pneumatic solenoid valve, due to the large static pressure and pneumatic force acting on the valve core, the pilot structure is generally used, such as the high-pressure solenoid valve structure disclosed in the Chinese patent CN2931959Y. The basic principle of the pilot structure solenoid valve is through Control the on-off of the electromagnet to control the filling and deflation of the upper cavity of the main valve core to realize the opening and closing of the main valve core. The response can be divided into two parts: the electromagnetic response and the filling and deflation response of the upper cavity of the main valve core. As the diameter of the valve increases, the diameter and opening stroke of the main valve core will increase, resulting in an in...

AI Technical Summary

Problems solved by technology

[0003] Therefore, for the high-pressure pilot solenoid valve with traditional structure, large flow rate and high-speed response are a pair of mutually restrictive parameters, and it is difficult to meet the requirements at the same time.

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