阅读说明：本技术 一种耐高温高压介质直动隔膜式电磁阀 (High-temperature and high-pressure resistant medium direct-acting diaphragm type electromagnetic valve ) 是由 罗冉 王昱琛 张晓梅 于 2021-10-22 设计创作，主要内容包括：本发明公开了一种耐高温高压介质直动隔膜式电磁阀,包括阀体,所述阀体的闭合口上端设置有凹槽,所述凹槽内设置有圆柱电磁铁和密封垫,所述密封垫形状为中空圆柱形凸台,所述密封垫镶嵌于阀体的闭合口处,所述圆柱电磁铁的下端设置有隔膜片,所述隔膜片内设置有蓝宝石片,所述蓝宝石片与密封垫挤压贴合。本发明通过在阀体的阀口位置处设置密封垫和在隔膜片内部镶嵌蓝宝石,蓝宝石与密封垫挤压,实现高温高压介质的封堵,软硬结合,减少阀口磨损,保证长期使用的稳定性；隔膜片采用耐高温、韧性好的材料,保证长期使用的稳定性和寿命。(The invention discloses a high-temperature and high-pressure resistant medium direct-acting diaphragm type electromagnetic valve which comprises a valve body, wherein a groove is formed in the upper end of a closed opening of the valve body, a cylindrical electromagnet and a sealing gasket are arranged in the groove, the sealing gasket is in a hollow cylindrical boss shape, the sealing gasket is embedded in the closed opening of the valve body, a diaphragm is arranged at the lower end of the cylindrical electromagnet, a sapphire sheet is arranged in the diaphragm, and the sapphire sheet and the sealing gasket are extruded and attached. According to the invention, the sealing gasket is arranged at the valve port position of the valve body, the sapphire is embedded in the diaphragm, and the sapphire and the sealing gasket are extruded, so that the plugging and the soft-hard combination of high-temperature and high-pressure media are realized, the valve port abrasion is reduced, and the stability of long-term use is ensured; the diaphragm is made of high-temperature-resistant and good-toughness materials, so that the stability and the service life of the diaphragm in long-term use are ensured.)

1. The utility model provides a high temperature resistant high pressure medium directly moves diaphragm type solenoid valve, a serial communication port, including valve body (1), the closed mouth upper end of valve body (1) is provided with recess (1-1), be provided with cylinder electro-magnet and sealed pad (1-2) in recess (1-1), sealed pad (1-2) shape is the cylindrical boss of cavity, sealed pad (1-2) are inlayed in the closed mouth department of valve body (1), the lower extreme of cylinder electro-magnet is provided with diaphragm (9), be provided with sapphire piece (9-4) in diaphragm (9), sapphire piece (9-4) and sealed pad (1-2) extrusion laminating.

2. The high temperature and high pressure resistant medium direct acting diaphragm type solenoid valve according to claim 1, wherein: the membrane piece (9) comprises a membrane block (9-2) and a membrane block screw rod (9-1) arranged at the upper end of the membrane block (9-2), a cavity is arranged in the module (9-2), the sapphire piece (9-4) is embedded in the cavity, a membrane piece (9-5) is arranged at the lower end of the membrane block (9-2), a flanging (9-3) is arranged on the membrane piece (9-5), and the sapphire piece (9-4) penetrates through the membrane piece (9-5); the groove (1-1) is circular, the annular groove (1-3) is formed in the inner circumference of the groove (1-1), and the flanging (9-3) is arranged in the annular groove (1-3).

3. The high-temperature and high-pressure resistant medium direct-acting diaphragm type electromagnetic valve according to claim 1 or 2, characterized in that: the cylindrical electromagnet comprises an electromagnet housing (2), the cross section of the electromagnet housing (2) is a circular ring, a coil frame (5) is arranged in the electromagnet housing (2), the coil frame (5) is a hollow circle, an electromagnetic coil (3) is wound on the coil frame (5), a fixed iron core (4) and a movable iron core (8) are arranged inside the coil frame (5), the fixed iron core (4) is fixed at the upper end of the electromagnet housing (2), the movable iron core (8) is arranged below the fixed iron core (4), the movable iron core (8) is in sliding connection with the coil frame (5), a mounting hole is formed in the fixed iron core (4), a spring (6) is arranged in the mounting hole, one end of the spring (6) is fixedly connected with the upper end of the movable iron core (8), and a threaded hole is formed in the lower end of the movable iron core (8), the membrane block screw rod (9-1) is in threaded connection with the movable iron core (8).

4. The high temperature and high pressure resistant medium direct acting diaphragm type solenoid valve according to claim 1, wherein: the bottom of valve body (1) is provided with mounting panel (10), valve body (1) and the cylinder electro-magnet pass through bolt fixed connection on mounting panel (10).

5. A high temperature and high pressure resistant medium direct acting diaphragm type solenoid valve according to claim 1 or 3, wherein: the cylindrical electromagnet is provided with an energy-saving chip module (7), and the energy-saving chip module (7) is electrically connected with the electromagnetic coil (3) through an external lead.

Technical Field

The invention relates to the technical field of electromagnetic valves, in particular to a high-temperature and high-pressure resistant medium direct-acting diaphragm type electromagnetic valve.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, is used for adjusting the direction, flow, speed and other parameters of a medium in an industrial control system, can be matched with different circuits to realize expected control, and can ensure the precision and flexibility of the control. The high-temperature high-pressure electromagnetic valve in the prior art has the structure that a static iron core is fixed at the upper part of a sleeve, a movable iron core capable of moving up and down is arranged at the lower part of the sleeve, a coil framework and an electromagnetic coil are fixed outside the sleeve, a diaphragm is generally connected with the movable iron core of the electromagnet, a return spring is arranged between the static iron core and the movable iron core, and the movable iron core is driven by the spring to press a valve port downwards by the diaphragm arranged at the lower part of the movable iron core; under the alternate action of electromagnetic force and spring, the axis direction of the movable iron core moves repeatedly to realize the opening and closing of the valve port and the switching of the flow channel; because the diaphragm is made of traditional corrosion-resistant rubber materials, and the valve port which is matched and sealed with the diaphragm is made of corrosion-resistant plastics, the diaphragm does reciprocating stretching motion during working, the hardness of the corrosion-resistant plastics is not high, and the valve port is easy to wear due to reciprocating opening and closing under high temperature and high pressure, so that the performance is unstable; the rubber diaphragm is easy to lose efficacy and break after long-term use, so that the service life of the diaphragm electromagnetic valve is unstable, and the safety risk is uncontrollable.

Disclosure of Invention

The invention aims to provide a high-temperature and high-pressure resistant medium direct-acting diaphragm type electromagnetic valve to solve the problem of unstable performance in the prior art.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a high temperature resistant high pressure medium directly moves diaphragm type solenoid valve, includes the valve body, the closed mouth upper end of valve body is provided with the recess, be provided with cylindrical electromagnet in the recess and sealed the pad, sealed pad shape is the cylindrical boss of cavity, sealed pad is inlayed in the closed mouth department of valve body, the lower extreme of cylindrical electromagnet is provided with the diaphragm, be provided with the sapphire piece in the diaphragm, the sapphire piece is laminated with sealed pad extrusion.

The diaphragm comprises a diaphragm block and a diaphragm block screw rod arranged at the upper end of the diaphragm block, a cavity is arranged in the module, the sapphire sheet is embedded in the cavity, a diaphragm is arranged at the lower end of the diaphragm block, a flanging is arranged on the diaphragm, and the sapphire sheet penetrates through the diaphragm; the recess is circular, circumference is provided with the annular in the recess, the turn-ups is arranged in the annular.

The cylinder electro-magnet includes the electro-magnet housing, electro-magnet housing cross section is the ring, be provided with coil skeleton in the electro-magnet housing, coil skeleton is hollow circle, the last coiling of coil skeleton has solenoid, coil skeleton is inside to be provided with decides the iron core and moves the iron core, decide the iron core and fix the upper end at the electro-magnet housing, move the iron core and set up the below at deciding the iron core, move iron core and coil skeleton sliding connection, be provided with the mounting hole on deciding the iron core, be provided with the spring in the mounting hole, the one end of spring and the upper end fixed connection who moves the iron core, the lower extreme that moves the iron core is provided with the screw hole, the diaphragm screw rod with move iron core threaded connection.

The bottom of valve body is provided with the mounting panel, the valve body passes through bolt fixed connection on the mounting panel with the cylinder electro-magnet.

The cylindrical electromagnet is provided with an energy-saving chip module, and the energy-saving chip module is electrically connected with the electromagnetic coil through an external lead.

Compared with the prior art, the invention has the following advantages:

according to the invention, the sealing pad is arranged at the valve port of the valve body, the sapphire is embedded in the diaphragm and extruded with the sealing pad, so that the sealing of a high-temperature and high-pressure medium is realized, the combination of hardness and softness is realized, the valve port abrasion is reduced, and the stability of long-term use is ensured; by arranging the safety energy-saving chip module, the heat generated by the electromagnetic valve coil during working is effectively reduced, and the electromagnetic valve works stably at normal temperature, so that the service life of the electromagnetic valve is prolonged, the energy consumption of the electromagnetic valve is reduced, and the use field of the electromagnetic valve is expanded; the diaphragm is made of modified polytetrafluoroethylene plastics, the traditional rubber diaphragm is avoided, the high-temperature and low-temperature performance of the diaphragm is more stable, the diaphragm is not easy to break, and the service life of the whole valve is prolonged.

Drawings

FIG. 1 is a schematic view of a solenoid valve of the present invention;

FIG. 2 is a schematic view of the connection of the valve body of the present invention with a cylindrical electromagnet;

FIG. 3 is a schematic view of a diaphragm of the present invention;

FIG. 4 is a view showing the relationship between the valve body and the gasket according to the present invention;

FIG. 5 is a schematic view of the valve body of the present invention;

fig. 6 is a schematic view of the gasket of the present invention.

In the figure: the energy-saving electromagnetic valve comprises a valve body 1, a mounting hole 1-1, a sealing gasket 1-2, a ring groove 1-3, an electromagnet housing 2, an electromagnetic coil 3, a fixed iron core 4, a coil framework 5, a spring 6, an energy-saving chip module 7, a movable iron core 8, a diaphragm plate 9, a module screw 9-1, a module 9-2, a flanging 9-3, a sapphire plate 9-4, a diaphragm 9-5 and a mounting plate 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in fig. 1, 2 and 3, a high temperature and high pressure resistant medium directly moves diaphragm type solenoid valve, includes valve body 1, the closed mouth upper end of valve body 1 is provided with recess 1-1, be provided with cylindrical electromagnet and sealed pad 1-2 in the recess 1-1, sealed pad 1-2 shape is the cylindrical boss of cavity, sealed pad 1-2 is inlayed in the closed mouth department of valve body 1, the lower extreme of cylindrical electromagnet is provided with diaphragm 9, be provided with sapphire piece 9-4 in the diaphragm 9, sapphire piece 9-4 and sealed pad 1-2 extrusion laminating.

As shown in fig. 4, 5 and 6, in the present embodiment, the gasket 1-2 is a corrosion-resistant rubber gasket; the diaphragm 9 is made of modified high polymer material; the sapphire sheet 9-4 is a circular sapphire wafer; during actual installation, the cylindrical electromagnet comprises an electromagnet housing 2, the cross section of the electromagnet housing 2 is a circular ring, a coil framework 5 is arranged in the electromagnet housing 2, the coil framework 5 is a hollow circle, an electromagnetic coil 3 is wound on the coil framework 5, a fixed iron core 4 and a movable iron core 8 are arranged in the coil framework 5, the fixed iron core 4 is inserted into a central hole of the coil framework 5, a gap between the fixed iron core 4 and the coil framework 5 is filled with sealant, the fixed iron core 4 and the central hole of the coil framework 5 are in interference fit, an end cover at the tail part of the fixed iron core 4 is also in interference fit with a step hole at the tail part of the electromagnet housing 2, and meanwhile, a sealing cover at the tail part of the fixed iron core 4, the electromagnet housing 2 and the coil framework 5 are secondarily reinforced by high-performance structural adhesive, so that the coil framework 5, the movable iron core 4 and the electromagnet housing 2 are stably connected with high strength, and a sealing cover at the tail part of the fixed iron core 4 and a step at the upper end of the electromagnet housing 2, The lower end of the fixed iron core 4 is in interference fit with a central hole of the coil framework 5, the coil framework 5 and the electromagnet housing 2 keep good coaxiality through high-precision size fit, meanwhile, a magnetic gathering ring is embedded in the central hole of the coil framework 5, the magnetic gathering ring is in interference fit with the coil framework 5 and keeps good coaxiality with the coil framework 5, and the magnetic gathering ring is internally polished to ensure that the movable iron core 4 does not deviate or vibrate in the whole working process and reciprocating motion, has low noise and stable action and stably works for a long time; the movable iron core 8 is arranged below the fixed iron core 4, the movable iron core 8 is connected with the coil framework 5 in a sliding mode, the fixed iron core 4 is provided with a mounting hole, a spring 6 is arranged in the mounting hole, one end of the spring 6 is arranged in the mounting hole and fixed, the other end of the spring 6 is fixedly connected with the movable iron core 8, the spring 6 is made of a high-strength constant-elasticity material, performance parameters can ensure that the permanent-magnetic-force-type magnetic-force sensor does not lose efficacy after long-time stable work through margin design, and stable and reliable resilience and blocking capacities are achieved; the electromagnetic coil 3 wound on the coil framework 5 is led out from the back of the sealing cover of the fixed iron core 4 through a high-temperature lead, and an environment-friendly sealant is filled in a lead-out hole; an energy-saving chip module 7 is welded at the external double lead connected with the electromagnetic coil 3, the type of the energy-saving chip module 7 is FNR-3.0, the double leads are respectively welded in two welding wire holes at one end of the energy-saving chip module 7, the external input double leads are welded at the other end of the energy-saving chip module 7, and the energy-saving chip module 7 is arranged in an energy-saving chip mounting box and fastened and reinforced by structural adhesive after finishing; the original high power of the electromagnetic valve is maintained at the moment before the valve port is opened, after the movable iron core 8 and the fixed iron core 4 attract the valve port to be opened, the power of the electromagnetic valve is maintained below one fourth of the maximum power through the voltage reduction function of the energy-saving chip module 7, the performance is not influenced, and the energy consumption and the heat productivity of the electromagnetic valve are greatly reduced; the lower end of the movable iron core 8 is provided with a diaphragm 9, and the circumference of the diaphragm 9 is sealed with the valve body 1 by static pressure; a sealing gasket 1-2 is arranged at a closed port of the valve body 1, the sealing gasket 1-2 is designed in a circular inverted boss type structure, the sealing gasket 1-2 is embedded in an inverted boss hole of a central flow passage port of the valve body 1, and when the movable iron core 8 moves up and down, the sapphire sheet 9-4 at the central part of the diaphragm sheet 9 is driven to move up and down to press the sealing gasket 1-2, so that the opening and closing conversion between the sealing gasket 1-2 and the valve port is realized; sapphire sheets 9-4 are embedded in a cavity of the center of the module 9-1 in an interference fit manner, circular protrusions at the edges of flanges 9-3 are embedded in annular grooves 1-3 of grooves 1-1 in the cavity of the valve body 1 and are matched with the inner walls of the grooves 1-1, the form and position tolerance, the size and the contact surface have higher precision requirements and quality requirements, the protrusions at the lower interface of the electromagnet housing 2 are used for applying extrusion force to the diaphragm sheet 9, and the higher size precision fit is adopted, so that the flanges 9-3 are uniformly stressed, and the sealing gaskets 1-2 are tightly extruded and attached to mounting holes of the valve body 1, so that reliable mechanical static pressure sealing is realized, and the internal medium is prevented from leaking; the valve body 1 and the excircle of the step on the lower surface of the electromagnet housing 2 are directly contacted with the groove 1-1 at the upper end of the closed opening of the valve body 1, so that the assembly positioning effect is realized, the runner opening is sealed by using the sealing gasket 1-2, an ideal deformation amount can be realized under the reaction force of the spring 6, and the sealing purpose is achieved, the diaphragm sheet 9 adopts a split design and selects a special high polymer material, so that the failure stiffness and the influence on the plugging performance under the low-temperature environment like the traditional corrosion-resistant rubber material can be avoided, meanwhile, the failure fracture like the traditional corrosion-resistant rubber material due to temperature change can also be avoided, the whole valve performance can be stabilized by the structure, and the service life of the whole valve can be prolonged; the bottom end of the valve body 1 is provided with an installation plate 10, the valve body 1 and the cylindrical electromagnet are fixedly connected through a bolt on the installation plate 10, the bolt sequentially penetrates through the valve body 1 and is fixedly connected with the cylindrical electromagnet, constant torque assembly is adopted, constant deformation of a positioning surface between the electromagnet housing and the valve body 1 is effectively guaranteed, error transmission is reduced through bolt fastening connection, and meanwhile, the internal valve core effectively controls the opening and closing size of a valve port through thread adjustment, so that higher opening flow control precision is realized; the sealing gasket 1-2 is fixedly arranged at the closed opening of the valve body 1, the diaphragm 9 and the sapphire sheet 9-4 are positioned in the groove 1-1 of the valve body 1, and the diaphragm 9 and the sapphire sheet 9-4 are attached to and extruded with the sealing gasket 1-2 embedded at the flow passage opening of the valve body 1 under the reaction force of a spring to realize the sealing with the flow passage opening of the valve body; the electromagnetic coil 3 is electrified, the movable iron core 8 is attracted by the electromagnetic force, the counterforce of the spring 6 is overcome, the movable iron core 8 is lifted to be attracted with the fixed iron core 4, the diaphragm sheet 9 and the sapphire sheet 9-4 are driven to rise, the sapphire sheet 9-4 is lifted to be separated from the sealing gasket 1-2, the runner port is opened, and the liquid in the runner port of the electromagnetic valve flows out from the hollow part of the sealing gasket 1-2; through switching on and off, under the alternate action of electromagnetic force and spring 6, 8 axis directions of movable iron core move repeatedly, realize opening and shutting of valve port and the switching of runner.

When the energy-saving valve is used specifically, the electromagnetic coil 3 is electrified through the lead and the energy-saving chip module 7, the electromagnetic coil 3 generates electromagnetic force, the fixed iron core 4 and the movable iron core 8 are magnetized to generate suction force, the movable iron core 8 overcomes the force of the spring 6 to be attracted with the fixed iron core 4, so that the diaphragm sheet 9 and the sapphire sheet 9-4 are driven to be lifted, liquid in the valve body 1 flows out from the hollow part of the sealing gasket 1-2, and a valve port is opened; when the power is off, the electromagnetic force disappears, the movable iron core 8 is pressed down by the force of the spring 6, the diaphragm sheet 9 and the sapphire sheet 9 are driven to press the sealing gasket 1-2 to block the valve port, the flanging 9-3 is placed in the annular groove 1-3, and the valve is closed; the movable iron core 8 reciprocates by the electromagnetic force generated by powering on and off the fixed iron core 4 and the movable iron core 8 and the reaction force of the spring 6, and drives the diaphragm sheet 9, the sapphire sheet 9-4 and the sealing gasket 1-2 to open and close the valve port, so that the valve is opened and closed.

According to the invention, the sealing gasket 1-2 is arranged at the valve port of the valve body 1, the sapphire sheet 9-4 is embedded in the diaphragm sheet 9, and the sapphire sheet 9-4 and the sealing gasket 1-2 are extruded, so that the plugging and the soft-hard combination of a high-temperature and high-pressure medium are realized, the valve port abrasion is reduced, and the stability of long-term use is ensured; by arranging the energy-saving chip module 7, the heat generated by the electromagnetic coil 3 during working is effectively reduced, so that the electromagnetic valve works stably at normal temperature, the service life of the electromagnetic valve is prolonged, the energy consumption of the electromagnetic valve is reduced, and the use field of the electromagnetic valve is expanded; the diaphragm 9 is made of high-temperature-resistant, corrosion-resistant and high-performance materials, and the high-power electromagnet and the constant-elasticity cylindrical spring 6 are utilized, so that the electromagnetic valve can resist high-temperature, high-pressure and corrosion-resistant media, can resist temperature up to 180 ℃, resist pressure up to 1.5MPa, and can be used in strong acid and strong alkali environments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.