The invention discloses a sealing electromagnetic valve The sealing electromagnetic valve comprises a valve seat, a coil rack and a valve bonnet, wherein the coil rack is arranged on the valve seat, and the valve bonnet covers the outside of the coil rack and is connected to the valve seat; a buffer cavity communicating with an inner cavity of the coil rack is formed in the valve seat, and an inflow pipe and an outflow pipe which communicate with the buffer cavity are arranged in the valve seat; a coil is wound around the exterior of the coil rack; a movable iron core is arranged in the coil rack in a sliding mode; a valve element is connected to the end, different from the valve bonnet, of the movable iron core through a connecting rod; a fixed iron core is fixedly arranged at the top of an inner cavity of the valve bonnet and is connected to the movable iron core through a spring; a corrugated pipe is arranged in the buffer cavity; one end of the corrugated pipe is connected to the valve element in a sealed mode, and the other end of the corrugated pipe is connected to the valve bonnet in a sealed mode; and the corrugated pipe communicates with the inflow pipe and the outflow pipe The sealing electromagnetic valve has the advantages that the valve element is connected to the corrugated pipe in a sealed mode, the corrugated pipe is connected to the valve bonnet in a sealed mode so that an integral sealing structure can be formed, and therefore leakage of mediums through a gap of the coil rack in the flowing process can be avoided

Sealing electromagnetic valve

The invention provides an automatic control valve for molten aluminum pipelining. A valve body is internally provided with a movable valve rod. A cooling chamber is arranged between the valve body and a driving part. A resistance heating and heat preservation layer is arranged on the periphery of the valve body. One side of the valve body is provided with an aluminum water inlet which can be connected with a pipeline, and one end of the valve body is an aluminum water outlet. The valve body is internally provided with a ceramic graphite sealing sleeve and a depressurization discharge groove and is connected with a guiding rod through a flange and a front supporting flange. The cooling chamber is arranged in the guiding rod. The guiding rod is connected with an air cylinder through a back supporting flange. The air cylinder is externally provided with a screw hole which is connected with an induction electronic control valve. The induction electronic control valve controls a valve to be opened or closed. The ceramic graphite sealing sleeve is sealed with a cylindrical surface subjected to precision machining. The valve is sealed with a conical surface subjected to precision machining. The driving part adopts air pressure drive or hydraulic drive or electric mechanical drive. According to the automatic control valve for molten aluminum pipelining, the production efficiency can be greatly improved, the quality of aluminum and aluminum alloy casting products are improved, the situation that the temperature of the surrounding environment is high and heat energy is wasted due to aluminum water leakage is avoided, the safety is improved, and especially, the problem that a ceramic pipeline and a ceramic valve are prone to being broken is solved.

Automatic control valve for molten aluminum pipelining

The invention discloses a multifunctional electromagnetic lifting device and method. The device comprises a stainless steel supporting plate, a stainless steel handle, a solenoid coil, a stainless steel supporting column, a drag chain, a tightening clamping sleeve, a tightening bolt and a lifting rod, the stainless steel handle and the stainless steel supporting column are welded on the stainlesssteel supporting plate, the solenoid coil is mounted in the stainless steel supporting column, a space positioning function is achieved, the drag chain comprises an armature and a stainless steel chain, the armature penetrates the inside of the solenoid coil to serve as an action portion of electromagnetic force, the armature is flexibly connected with the tightening clamping sleeve by the stainless steel chain, stretching effects are ensured, inertial extrusion is buffered, the tightening clamping sleeve is connected with the lifting rod through the tightening bolt, and the smooth lifting rodis fixed through the compression action of the tightening bolt. The lifting device is applied to closed environments, remote control is achieved, and the lifting rod is displaced within a short time.

Multifunctional electromagnetic lifting device and method

The invention discloses a nuclear-security third-level steam solenoid valve for a stream-driven auxiliary water-feeding pump of a nuclear power station. The nuclear-security third-level steam solenoid valve comprises a valve body, a sleeve, a lower flange, a guide body, a valve element assembly, a valve sleeve assembly, solenoid drive mechanisms, an armature assembly arranged between the solenoid drive mechanisms, a plug wire assembly and a cover cap. The sleeve is arranged in the valve body; the valve element assembly is arranged in the sleeve; the guide rod is arranged outside a valve rod of the valve core assembly in a sleeving mode; and the guide body is connected to the sleeve. The lower flange is fixed to the valve body in a threaded connection mode, the valve sleeve assembly is correspondingly fixed to an upper flange, and the valve sleeve assembly is fastened with the lower flange through a double-ended stud, so that the end head of the valve sleeve assembly is firmly connected to the end head of the valve body. The valve rod of the valve element assembly is connected to a movable iron core of the armature assembly arranged in the solenoid drive mechanism. The solenoid drive mechanism is in threaded connection to the valve sleeve assembly, and a wire housing sealing pad is arranged between the solenoid drive mechanism and the valve sleeve assembly. The plug wire assembly is provided with a cable, and is fixed to the cover cap. The nuclear-security third-level steam solenoid valve can meet environmental conditions such as high humidity, high heat, high radiation, working vibration, thermal ageing and the like, and is small in size, is light in weight and is flexible in response.

Nuclear-security third-level steam solenoid valve for stream-driven auxiliary water-feeding pump of nuclear power station

The invention relates to a small-flow electromagnetic adjusting valve. The two portions of an executor and a valve are included; the executor comprises an executor support, a fixed iron core, a movable iron core, a spring, a valve position feedback sensor, an upper installing disk and a lower tray, wherein the upper installing disk and the lower tray are correspondingly fixed to the upper portion and the lower portion of the executor support; the fixed iron core is fixedly connected with the upper installing disk; the movable iron core is arranged in the fixed iron core in a sleeved manner to form an electromagnet, and a magnetic force is provided; the spring is located between the fixed iron core and the movable iron core, and placed in a spring clamping groove; under the effect of the magnetic force, the movable iron core bears force to move and compress the spring; the spring provides a compressing elastic force to balance the electromagnetic force; the valve position feedback sensor comprises a valve position feedback sensor fixed end and a valve position feedback sensor movable end; the fixed end is connected to the upper portion of the upper installing disk, and the movable end is connected with the movable iron core to be used for feeding back iron core displacement information, and finally converting into an electric signal type to feed back valve position information is achieved.

Small-flow electromagnetic adjusting valve

A bellows seal electromagnetic valve comprises a valve body assembly, a valve clack assembly, a bellows assembly, a valve cover assembly, an electromagnet and a support A valve body is provided with a medium inlet and a medium outlet, the valve clack assembly and the bellows assembly are arranged in a valve body upper cavity after being assembled, the valve body upper cavity is pressed through a valve cover and sealed through a seal gasket, and a closed cavity is formed between the valve body and the bellows assembly so that it can be ensured that corrosive media are prevented from making contact with a valve rod and an armature A valve cover upper end hole is filled with V type packing, so that it is ensured that the media can not leak out after a bellows is damaged An outer shell formed by combining austenitic stainless steel with permeability alloy is arranged outside the electromagnet, a coil assembly is arranged inside the outer shell and pressed through a concentrating flux plate and a pressing sleeve, the upper portion of the outer shell is pressed through a coil shell cover and sealed through an O-shaped ring, and a lead of a coil is led out through a cable leading-out device The support is used for connecting the electromagnet with the valve cover The bellows seal electromagnetic valve can be used for controlling the high-temperature, corrosive, poisonous and harmful media, and can meet the requirements of nuclear chemical engineering and the requirements of nuclear waste processing systems

Wang Pei

Papers

Bellows seal electromagnetic valve