Intelligent type high temperature high voltage leakage-free solenoid valve

Abstract

The invention relates to an intelligent high temperature high pressure non-leakage magnetic valve, comprising a shielding sleeve and a valve body. A magnet coil and a dynamic iron core are installed on the upper portion of the shielding sleeve, and a radiating fin is mounted on the outer portion of the shielding sleeve. A dielectric inlet end and a dielectric outlet end are arranged on the lower portion of the valve body, and a middle dielectric passage is arranged between and mutually connected with the inlet end and the outlet end. A cylinder liner is installed in the valve body, a guide body is arranged on the upper end of the cylinder liner, and a center hole on a valve base is mutually connected with the center dielectric passage. A flap is installed in the cylinder liner, and an assistant-valve hole is mounted on the lower portion of the flap. The upper end of a valve rod is attached with the dynamic iron core, and the lower end is attached with an assistant valve, and a return spring is arranged on the valve rod. The invention has smart and reasonable design. The invention which adopts a kick rigidity micro-resilient seal pair structure can permanently work under the working conditions that temperature is smaller or equal to 350 DEG C, and pressure is 0-17.5 MPa, which guarantees the non-leakage and reliable working of the valve, and the valve also can operate reliably without leaking, particularly under the hostile conditions of small pressure difference and temperature difference.

Description

technical field [0001] The invention relates to a solenoid valve, in particular to an intelligent high-temperature and high-pressure non-leakage solenoid valve for high-temperature and high-pressure fluid medium. Background technique [0002] The solenoid valve is one of the important components of the automatic control system in the industrial production process. Especially when only two-position control is required in the process flow, the selection of a solenoid valve with a suitable flow capacity, in line with the production conditions and environmental requirements, and with an equivalent caliber can not only adapt to production. Demand can save investment and daily maintenance costs. For this reason, it is necessary to ensure that the production process has a good control effect. Usually, there are strict and specific requirements for the relevant parameters of the solenoid valve, such as leakage and flow rate, especially for solenoid valves that flow through high-temp...

AI Technical Summary

Problems solved by technology

At present, the general-purpose high-temperature and high-pressure solenoid valve generally adopts a rigid sealing structure design, that is, the seat of a hard alloy is directly processed or surfacing on the valve body. The frequent contact and clutch between the disc and the seat of this solenoid valve can easily cause Wear and tear, so that the leakage of the valve gradually increases, so that it cannot be used. The valve stem of this solenoid valve is also prone to jamming or falling off due to structural defects.

This virtually increases operating costs and affects the safe and reliable operation of the system

Under the conditions of small pressure difference and alternating temperature, the sealing performance of the valve at the valve seat is easily damaged, so that the expected control requirements cannot be achieved.

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