CN101418870B - High power high-temperature solenoid valve - Google Patents
High power high-temperature solenoid valve Download PDFInfo
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- CN101418870B CN101418870B CN2008101811817A CN200810181181A CN101418870B CN 101418870 B CN101418870 B CN 101418870B CN 2008101811817 A CN2008101811817 A CN 2008101811817A CN 200810181181 A CN200810181181 A CN 200810181181A CN 101418870 B CN101418870 B CN 101418870B
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- 238000007789 sealing Methods 0.000 claims abstract description 73
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 210000003128 head Anatomy 0.000 claims description 22
- 238000005243 fluidization Methods 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 6
- 210000000214 mouth Anatomy 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000000945 filler Substances 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009849 deactivation Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
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Abstract
The invention relates to a high power high temperature solenoid valve, which comprises an electromagnetic head, a valve body, and a transmission rotating shaft, wherein the valve body comprises a valve body, a support mounted on the valve body and a valve rod, the upper part of the valve rod is arranged in the chamber of the support, the electromagnetic head is provided with a static iron core and a moving iron core which are matched with each other, the moving iron core is connected with the passive end of the rotating shaft through a front transmission mechanism, the upper part of the valverod is connected to the active end of the rotating shaft through a rear transmission mechanism, the rotating shaft passes through the outer wall of the support and is rotatably connected with the support in sealing way, the active end of the rotating shaft is arranged in the chamber of the support, and the passive end is arranged outside the support, the front transmission mechanism is mainly composed of a pull rod and a connecting rod II, and the rear transmission mechanism is mainly composed of a connecting rod I. The invention has the advantages of corrosion resistance, high pressure resistance, long service life, and flexible motion, has a manual mechanism, and can be widely applied to various pipelines with high temperature medium, low temperature medium, high pressure medium and corrosion medium.
Description
Technical field
The present invention relates to a kind of large power, electrically magnet valve, it allows high temperature media to pass through, it is big, corrosion-resistant, high pressure resistant to open power, long service life, flexible movements, have man-operated mechanism, have energy-saving environmental-protection function, can be widely used in carrying automatic control in high temperature media, cryogenic media, high-pressure medium, the aggressive medium pipeline purposes such as to end.
Background technique
Existing solenoid valve generally is directly to drive valve rod by electromagnetic actuator device (Electrical heads) to move, the valve rod lower end extends in the interior valve pocket of valve body, move up and down by valve rod, realize the opening and closing of valve, in order to reduce moving iron core moving resistance, general all is logical medium in the plunger tube of electromagnetic actuator device, can open the high pressure medium to guarantee the large power, electrically magnet valve, but such result makes the temperature of medium, corrosion resistance is restricted, the temperature of medium directly has influence on the temperature rise of coil, and the medium temperature height must make coil temperature raise, improve deactivation coil efficient, therefore this solenoid valve not only medium temperature generally all need to be controlled in 200 ℃, and the cost of coil is very high, poor reliability.For avoiding the influence of medium temperature to coil, some solenoid valves also adopt the technology that compresses sealing between valve rod and the valve gap with filler, prevent the medium leakage, but this structure has increased the resistance when valve rod is opened, and makes the Electrical heads of solenoid valve very big, the cost height.
Summary of the invention
For overcoming the above-mentioned defective of prior art, the invention provides a kind of high power high-temperature solenoid valve, the medium temperature height that this solenoid valve adapts to, it is little to start the power requirement, and the resistance of generation is little, and good seal performance, and is simple in structure, and cost is low.
The present invention realizes that the technological scheme of above-mentioned purpose is: a kind of high power high-temperature solenoid valve, comprise Electrical heads, the rotating shaft that valve body and transmission are used, described valve body comprises valve body, be installed in support and valve rod on the valve body, the top of described valve rod is arranged in the cavity of described support, described Electrical heads is provided with fixed core and the moving iron core that cooperatively interacts, it is characterized in that described moving iron core connects the Partner of described rotating shaft by preceding driving mechanism, the top of described valve rod connects the drive end of described rotating shaft by the back driving mechanism, the outer wall of described support is passed in described rotating shaft, be rotatably connected with described support sealing, its drive end is positioned at the cavity of described support, and Partner is positioned at the outside of described support.
Driving mechanism comprises pull bar and connecting rod II before described, and the Partner of described pull bar is connected with described moving iron core, and drive end is connected with the Partner of described connecting rod II, and the drive end of described connecting rod II is fixedlyed connected with the Partner of described rotating shaft.
The Partner of described pull bar is fixedly connected or is rotatably connected with the Placement of described moving iron core, and the drive end of described pull bar and the Placement of the Partner of described connecting rod II are to fixedly connected or be rotatably connected.
Described back driving mechanism comprises connecting rod I, and the Partner of described connecting rod I is fixedly connected with the drive end of described rotating shaft, and drive end connects with the top of described valve rod.
The drive end of described connecting rod I is fixedly connected or is rotatably connected with the Placement on described valve rod top.
Be provided with medium channel in the described valve body, in the entrance cavity of described medium channel or entry end be provided with the branch fluidization tower, described minute fluidization tower is positioned at the centre of entrance cavity, vertical extent, it connects into the inwall up and down in oral cavity respectively in two ends up and down.
The cross section of described minute fluidization tower is the wedge shape of circle, ellipse or corner's slyness, and the drift angle of wedge shape is towards the MEDIA FLOW Inbound.
Driving mechanism is provided with handle before described, and described handle is fixedlyed connected with described connecting rod II.
Described valve body adopts the pilot valve structure, is provided with main valve sealing pair and secondary valve seal pair, and described valve rod lower end is provided with the I sealing surface of described secondary valve seal pair, together constitutes described secondary valve seal pair with II sealing surface on the secondary valve seal seat.
Described main valve sealing pair is made of the main valve I sealing surface of valve cup bottom and the main valve II sealing surface on the main valve seat, described valve cup is positioned at the medium channel of described valve body, be provided with guide sleeve in the lumen in the described medium channel, described valve cup is positioned at described guide sleeve, move with described guide sleeve and to cooperate, described valve cup bottom and lower side are provided with the damping hole inside and outside the connecting valve cup, and described valve body is provided with valve gap, described support be fixed on described valve gap on.
The invention has the beneficial effects as follows: because Electrical heads (being electromagnetic actuator device) is separated with valve rod, medium in the valve body does not enter in the Electrical heads, avoided the influence of high temperature media effectively to Electrical heads, simultaneously owing to valve rod moves between the iron core together by a plurality of connections, high temperature on the valve rod can not be directly passed to moving unshakable in one's determination, also help reducing the temperature rise of Electrical heads, improved the accommodation of valve thus medium temperature; Owing to be provided with the rotating shaft that transmission is used, and substitute the prior art lower valve rod with the sealing between the support with the sealing between the support by rotating shaft, because the rotational resistance of sealing material countershaft is much smaller than the resistance that moves up and down to valve rod, reduced the power consumption in the transmission process thus, reduce the requirement of valve, also just reduced the required electric current of Electrical heads thus, not only simplify the structure driving force, but also reduced the heating value of coil, reduced the temperature rise of coil from another point of view; Because the kind of drive that can also adopt connecting rod to drive rotating shaft is carried out transmission, has amplified moment of torsion, has also reduced the electric current of Electrical heads; Owing to be provided with handle, under the situation that does not have electricity, can carry out the operation of solenoid valve by manual type; Since can also make electric current big when starting by rational control box setting, little after the sound adhesive unshakable in one's determination, also reduced energy consumption and temperature rise thus.
Description of drawings
Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c) be respectively Electrical heads, valve rod and the driving mechanism thereof of an embodiment of the present invention the partial front elevation view that has cut-away section, have part from the partial left side view of valve rod axis position profile with have the partial left side view of part from pull rod shaft line position section;
Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c) be respectively an embodiment of the present invention the plan view that has cut-away section, have part from the left view of valve rod axis position profile with have the left view of part from pull rod shaft line position section;
Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) be respectively the another kind of embodiment of the present invention the plan view that has cut-away section, have part from the left view of valve rod axis position profile with have the left view of part from pull rod shaft line position section;
Fig. 4 is another embodiment's of the present invention the partial front elevation view that relates to valve body that has cut-away section;
Fig. 5 is another embodiment's of the present invention the partial front elevation view that relates to valve body that has cut-away section.
Embodiment
Referring to Fig. 1-4, the invention provides a kind of high power high-temperature solenoid valve, comprise valve body, described valve body is provided with the main valve chamber that is communicated with valve inlet and outlet, described main valve chamber is divided into snout cavity successively, lumen and outlet plenum, a guide sleeve is installed in the described lumen, be provided with one in the described guide sleeve and move axially the valve cup that cooperates with guide sleeve, the lower surface of described valve cup is provided with main valve sealing pair I sealing surface, the below of described valve cup is the main valve seat that is positioned at described main valve chamber, described main valve seat is provided with the main valve sealing pair II sealing surface that together constitutes the main valve sealing pair with described main valve sealing pair I sealing surface, the central authorities of described main valve sealing pair II sealing surface are the main valve holes that is communicated with its both sides main valve chamber, the lower end of described guide sleeve is with leaving the spacing of passing through for medium between the described main valve sealing pair II sealing surface, the bottom of described valve cup or bottom, side are provided with the inside and outside damping hole of connecting valve cup, described valve body is provided with valve gap, described valve gap be fixedly connected on described valve body main body above, seal the uncovered of described guide sleeve upper end and surrounded an epicoele with described guide sleeve and valve cup, be provided with support above the described valve gap, be provided with a secondary valve pocket between described support and the valve gap, the import of described secondary valve pocket is communicated with described epicoele, outlet is communicated with described outlet plenum, be equipped with on the described support with it and move axially the valve rod that cooperates, the bottom of described valve rod extends to secondary valve pocket, and be provided with secondary secondary I of valve seal sealing surface, the outlet port of described secondary valve pocket is provided with auxiliary-seat, and described auxiliary-seat is provided with secondary secondary II of the valve seal sealing surface that together constitutes secondary valve seal pair with described secondary secondary I of valve seal sealing surface.
Described valve rod driving mechanism comprises drive unit, and described drive unit is provided with the output member of linearly operating, and this output member is a pull bar that moves up and down normally.
Described drive unit can be electromagnetic actuator device (Electrical heads), described electromagnetic actuator device comprises magnetic shield, described magnetic shield peripheral hardware has coil and shell, be provided with fixed core and moving unshakable in one's determination in the magnetic shield, described fixed core is installed in the top of described magnetic shield inner chamber, described moving iron core be positioned at described fixed core below, move with described magnetic shield and to cooperate, described moving iron core is provided with pull bar, and the outer end of described pull bar connects described valve rod.Under prior art, usually valve rod directly is connected on the moving iron core, perhaps pull bar links into an integrated entity with valve rod, and it moves up and down by moving drive unshakable in one's determination, and this patent then realizes that by a plurality of driving components that comprise rotating shaft valve rods are with the connection between the pull bar.
Described connecting rod outer end is generally by driving mechanism with the Placement of described valve rod and is connected, described driving mechanism comprises rotating shaft, connecting rod II and connecting rod I, described rotating shaft is installed on the described support, cooperate with described support rotation, the end of described connecting rod II connects described pull bar, the other end connects the right part of described rotating shaft, the end of described connecting rod I connects the left part of described rotating shaft, the other end connects described valve rod, described rotating shaft is vertical non-intersect with described valve rod, described pull bar is parallel with described valve rod, and described connecting rod II and described connecting rod I all both be not parallel to described pull bar, also were not parallel to described rotating shaft.According to design of the present invention, this rotating mechanism can be divided into preceding driving mechanism, rotating shaft and back driving mechanism, wherein moving iron core is preceding driving mechanism with the driving mechanism between the rotating shaft, rotating shaft is the back driving mechanism with the driving mechanism between the valve rod.
Described connecting rod II can be connected for bearing pin with the Placement of described pull bar, with the Placement of described rotating shaft be that described rotating shaft is plugged in the hole, non-garden of this connecting rod, the Placement of described connecting rod I and described rotating shaft is that described rotating shaft is plugged in the hole, non-garden of this connecting rod, is that bearing pin is connected with the Placement of described valve rod.
The Placement of described connecting rod outer end and described valve rod also can be for directly being connected, and the valve rod hole on the described support is passed on described valve rod top, extends to the support outside, is provided with stuffing box packing between described valve rod and the valve rod hole.
The inlet of described valve body can be provided with the branch fluidization tower, is used for MEDIA FLOW is divided into left and right sides both direction, reduces the impact to valve cup and guide sleeve, has strengthened the intensity of valve body simultaneously.
The import of described secondary valve pocket and the mode of communicating of described epicoele can be that pod apertures on is being set on the described valve gap, a described end of going up pod apertures connects described epicoele, the other end constitutes the import of described secondary valve pocket, the outlet of described secondary valve pocket and the mode of communicating of described outlet plenum are that the outlet along secondary valve pocket is provided with a middle pod apertures on valve gap, a following pod apertures is set on the outlet plenum sidewall of valve body, connects by honeycomb duct between described middle pod apertures and the following pod apertures.
Described honeycomb duct with described in pod apertures Placement can for described in pod apertures peg graft or dock after be welded on the described valve gap, perhaps be screwed on the described middle pod apertures and sealing gasket is set in the joint, the Placement of described honeycomb duct and described pod apertures down is for being plugged in the described pod apertures down, and it is pegged graft and partly and under described is provided with stuffing box packing between the pod apertures.
Described honeycomb duct generally can be a bend pipe, also can be that a plurality of parts that have pore interconnect and are integral.
Be connected with flat bracket on the described support, described flat bracket is interconnected by some level boards and some vertical plate and forms, the rotary shaft hole that passes for described rotating shaft is arranged on the described support, have at least 1-2 vertical plate to be provided with the rotary shaft hole that is used to connect described rotating shaft in the described flat bracket, the rotary shaft hole on the described support is passed in described rotating shaft, and pass through filler II with the sealing between the described support, the rotary shaft hole on described each vertical plate is passed or penetrates in described rotating shaft, pass through rolling bearing, axle sleeve or unthreaded hole Placement are connected with these vertical plate, are connected with handle on the described pull bar II.
Two sealing surfaces of described main valve sealing pair can adopt different structures (referring to Fig. 2-Fig. 4) according to actual needs, wherein the area of the main valve of valve cup bottom sealing I sealing surface generally should be less than the area of contour of valve cup on this plane, so that utilize the inside and outside pressure reduction of valve cup to carry out the unlatching of valve better or close.
For embodiment shown in Figure 2, valve gap is provided with middle pod apertures, pod apertures is set down on the valve body, by pod apertures and following pod apertures in the tubulose connection part connection, dock in the pod apertures or with middle pod apertures during horizontal element above the connection part is inserted in, and be fixedly connected on the valve gap by engage thread, the vertical member below the connection part is plugged on down in the pod apertures, stuffing box packing is set around it and compresses, so that realize sealing and fixedly connected by nut.Adopt sealing to be rotatably connected between the horizontal element of connection part and the vertical member, so that carry out the position adjustment of appropriateness when mounted.
For embodiment shown in Figure 3, then be to substitute connection part in embodiment illustrated in fig. 2 by a curved conductor, pod apertures and following pod apertures in the connection, its Placement with each pod apertures can be with reference to the embodiment of Fig. 2.
For embodiment shown in Figure 4, then be with the middle pod apertures on the valve gap with the butt joint of the following pod apertures on the valve body, positioning link can be set, and sealing configuration be set, so that realize sealing and connection between two pod apertures at joint.
In embodiment shown in Figure 5, the embodiment of most of structure same Fig. 1-4 is identical or similar, difference mainly is that its secondary valve seal pair is arranged at the end of valve cup, central authorities or other suitable location at the bottom of the valve cup are provided with a through hole, the edge of this through hole is provided with secondary valve II sealing surface, valve rod passes valve gap and extends in the valve cup, the lower end of valve rod is provided with secondary valve I sealing surface, constitute a secondary valve seal pair thus, when valve rod lifts, can drive the valve cup by the protruding structure on the valve rod and move up, can be adapted to the lower medium of pressure like this, supply the defective of lifting with the valve cup to remedy pressure medium.Under this secondary valve seal pair, no longer need to be provided with the conduit of each pilot hole and connection thereof or tubulose connection part etc.
Concrete structure of the present invention can be: high power high-temperature solenoid valve is made up of valve body 1, valve cup 2, guide sleeve 3, valve gap 4, honeycomb duct 15, support 28, valve rod 5, connecting rod I27, rotating shaft 7, connecting rod II31, pull bar 32, moving iron core 33, static iron core 34, coil 35, flat bracket 8, control box 9, filler I18, filler II6 etc., and valve body is made up of entrance cavity 25, branch fluidization tower 24 sides, lumen 20, outlet plenum 22, secondary 21I of primary seal sealing surface and filler I stuffing box.Valve gap is housed above the valve body, support is housed on the valve gap, flat bracket is housed on the support, control box and Electrical heads 29 are housed on the level board above the flat bracket.The valve body lumen is equipped with guide sleeve, the valve cup is housed in the guide sleeve, valve cup lower end is secondary II of a primary seal sealing surface, I sealing surface on this II sealing surface and the valve body is formed the primary seal pair, compresses sealing with Sealing between valve gap and the valve body, and valve gap and valve cup, guide sleeve are formed a cavity, this cavity is called epicoele 19, compress sealing with Sealing between valve gap and the support, form a cavity between them, this cavity is called secondary valve pocket 12.Valve gap is provided with the I sealing surface of secondary sealing pair 13 in secondary valve pocket, pod apertures 16 in being provided with in the middle of the valve gap, middle pod apertures outer end is connected to honeycomb duct, the following pod apertures 17 on the valve body is inserted in the honeycomb duct lower end, connects the valve outlet chamber, is filled with filler I between honeycomb duct and the valve body, prevent to reveal away between outlet plenum medium inner valve body and the honeycomb duct, linked to each other by last pod apertures 14 between secondary valve pocket and the epicoele, last pod apertures is located on the valve gap, and last pod apertures upper-end surface is exactly above-mentioned secondary sealing pair I sealing surface.
The carriage center place is provided with valve rod, by stent support, valve rod can move by easy on and off in support, the valve rod lower end is provided with secondary sealing pair II sealing surface, it forms secondary sealing pair with the secondary sealing pair I sealing surface on the valve gap, in support, become 90 ° of crossover locations to be provided with rotating shaft with valve rod, be provided with stuffing box between rotating shaft and the support, filler II is housed in the stuffing box, blocks medium by filler II and reveal away between support and rotating shaft, rotating shaft can freely be rotated in support, rotating shaft left side cylindrical is provided with connecting rod I, connecting rod I one end is enclosed within on the rotating shaft cylindrical, and the other end links to each other with valve rod, and connecting rod I adopts bearing pin to be connected with the valve rod Placement, when rotating shaft is rotated, but the swing of certain amplitude is done at the rich rotating shaft center of rotating shaft drivening rod I.By bearing pin, connecting rod I swing is transformed into valve rod and moves up and down, and for avoiding the obstruction to connecting rod I and rotating shaft action, the support epicoele 11 that is used to hold part such as connecting rod I in the support should have certain space.Rotating shaft the right cylindrical is provided with connecting rod II, and connecting rod II one end is enclosed within the rotating shaft, and the other end links to each other with pull bar, connecting rod II adopts bearing pin to be connected with the pull bar Placement, when pull bar moved up and down, pull bar made the rich rotating shaft center of connecting rod II do the swing of certain amplitude by bearing pin, so rotating shaft is rotated thereupon.The rotating shaft low order end is connected with flat board, and rotating shaft is free to rotate in flat board.The pull bar upper end links to each other with moving iron core, moving iron core upper end is provided with static iron core, dynamic and static iron core is provided with plunger tube outward, static iron core and plunger tube are to be weldingly connected, but moving iron core easy on and off in plunger tube moves, and plunger tube cylindrical peripheral hardware has coil, and coil turn line and control box output electric wire join, be provided with one group of electrical apparatus element in the control box, electrical apparatus element input lead is the power supply wiring head 10 of solenoid valve.
Referring to Fig. 2, Fig. 3 and Fig. 4, under basic structure of the present invention and purpose, can improve or replace the structure among each embodiment, for example honeycomb duct can be a bend pipe (for example shown in Figure 3), also can be that a plurality of parts that have pore interconnect (for example shown in Figure 2); Valve gap can adopt the bolt mode with the connection between the valve body, also can adopt alternate manner; Can process all-in-one-piece for a plurality of that are mutually permanently connected, also can be processed into a plurality of parts and be assembled into one then.
Working principle of the present invention is (is example with Fig. 2-4 embodiment): during the energising of large power, electrically magnet valve power connection, the work of control box electrical apparatus element, with big electric current by the coil in the Electrical heads, so coil produces big magnetic field, moving iron core is sucted with big suction by static iron core, move and by pull bar connecting rod II is upwards swung after iron core is pulled on, after connecting rod II upwards swung, rotating shaft was along with rotation, be contained in the also upwards swing thereupon of connecting rod I in the rotating shaft, by bearing pin, valve rod moves up, and the secondary sealing pair in valve rod lower end is opened by big pulling force, thereby medium is by the auxiliary-seat endoporus in the secondary valve pocket, through in pod apertures, following pod apertures is to the diffluence of valve outlet chamber, secondary opening of valves.Secondary valve pocket links to each other with epicoele by last pod apertures, then the epicoele medium by last pod apertures, the auxiliary-seat endoporus, middle pod apertures, following pod apertures flows to outlet plenum.Because damping hole 23 diameters are little on the valve cup, the pod apertures diameter on the valve gap is big, so through behind the certain hour, the epicoele pressure medium on the valve cup drops to certain certain value, valve cup environment pressure will hold up the valve cup and move up, and the main valve sealing pair is opened.Valve body entrance cavity medium can flow to lumen by a minute fluidization tower, flows to the valve body outlet plenum by lumen through the main valve seat endoporus, and the large power, electrically magnet valve is opened.
In large power, electrically magnet valve energising opening procedure, distance is farthest between moving iron core and the static iron core when opening for secondary valve seal pair, with Electrical heads electromagnetic attraction minimum this moment, can open in order to make the large power, electrically magnet valve, when solenoid valve has just been switched on, pass through for coil with the big electric current that designs, make coil produce big magnetic field through the control box effect, be pulled upwardly for moving iron core with big pulling force, the secondary valve seal pair of large power, electrically magnet valve is opened.Behind certain hour, under the effect of control box, control box is given the little electric current process of coil to design, moving iron core was pulled on static iron core and was collided this moment, at this moment, though coil passes through with little electric current, the sound iron core is by adhesive, can produce the elastic force that enough big pulling force overcome Returnning spring 30 between the sound iron core, guarantee the firm adhesive of sound iron core, guarantee valve opening, the isochrone loop current is little, temperature rise is low, guarantees the coil operational safety.
When the large power, electrically magnet valve will be closed, the outage of large power, electrically magnet valve power supply wiring head, coil blackout, the magnetic field diminishes that coil produces.Suction disappears between the sound iron core, under the spring force effect, overcome the resistance of filler II countershaft, spring pulling connecting rod II is to lower swing, rotating shaft is rotated, drive valve rod by connecting rod I and move down, secondary secondary II of valve seal sealing surface contacts on secondary valve seal secondary I sealing surface in valve rod lower end and the valve gap, and secondary valve cuts out.After secondary valve cuts out, cut off the passage of secondary valve pocket and middle pod apertures, epicoele, secondary valve pocket medium discharge route are closed, medium inlet passage-the damping hole of epicoele is on-state simultaneously, so medium flows to epicoele by damping hole, the epicoele pressure medium raises behind certain hour, promotes the valve cup and moves down, on the valve cup on main valve sealing pair I sealing surface and the valve body main valve sealing pair II sealing surface contact, main valve is closed.
When the large power, electrically magnet valve will be opened, the same, the energising of large power, electrically magnet valve power supply wiring head, great-power electromagnetic opening of valves.This is to have under the situation of electricity, when not having electricity, can come manual operation by handle 26, moves valve opening on the handle, and handle moves down valve closing.
Based on above-mentioned innovation, the present invention has mainly solved or has helped to solve following point:
(1), by the rotating shaft kind of drive, can lead to high temperature, low temperature, aggressive medium, can open high-pressure medium again.The existing structure of solenoid valve all is a logical medium in the plunger tube, main like this is in order to reduce moving iron core moving resistance, assurance large power, electrically magnet valve can be opened the high pressure medium, but such result makes the temperature of medium, and corrosion resistance is restricted, because of medium will be by in the coil axes septum cordis magnetic tube, the temperature of medium directly has influence on the temperature rise of coil, the medium temperature height must make coil temperature raise, and improves deactivation coil efficient.The general medium temperature of passing through plunger tube all is controlled in 200 ℃, but the cost of coil is very high, poor reliability.Another kind of electromagnetic valve structure is that valve rod moves up and down, and compresses with filler between valve rod and the valve gap and prevents that medium from revealing, and this structure has increased the resistance when valve rod is opened, and makes the Electrical heads of solenoid valve very big, the cost height.This structure adopts turning shaft structure, compresses with filler between rotating shaft and the valve gap and prevents that medium from revealing.Because valve rod moves up and down the words that the sound iron core adhesive resistance of structure is assumed to F, when the rotating shaft of turning shaft structure is rotated sound iron core adhesive resistance only for F 1/16th (establish rotating shaft, stem diameter is 10 millimeters, connecting rod is 80 millimeters), so sound iron core adhesive resistance was little when the rotating shaft of turning shaft structure was rotated, Electrical heads power is corresponding to diminish, simultaneously medium has not increased the parameter area of medium by plunger tube, has cut off the bang path that medium temperature passes to coil.
(2), by rotating shaft right-hand member positioning bearing, improved rigidity, strengthen stability.
(3), by handle, use Electromagnetic Drive when electricity is arranged, but does not have manual operation lever drive when electric.
(4), by dividing a fluidization tower, improve the open and close flexibility, be divided into the two-way a fluid stream after making medium by minute fluidization tower, flow to lumen through valve cup both sides, alleviated the impact force of medium, alleviated the resistance that the valve cup moves up and down, improved the flexibility that valve opening is closed the valve cup.
(5), by the outer first guide structure that floats that main valve and secondary valve combine, improve sealability, improve large power, electrically magnet valve reliability.This outer first guide structure that floats is process valve gap auxiliary-seat sealed mouth, lead to valve body by honeycomb duct, link to each other with the valve outlet chamber, honeycomb duct contacts with the valve gap rigidity, when valve gap with after valve body is connected, honeycomb duct can stretch to the attachment hole that matches with it on the valve body, compresses with filler between honeycomb duct and the valve body to prevent to reveal, sealing is stressed between sealing and valve gap and the valve body between guide pipe and the valve body does not involve, and has improved sealing reliability.
Claims (9)
1. high power high-temperature solenoid valve, comprise Electrical heads, the rotating shaft that valve body and transmission are used, described valve body comprises valve body, be installed in support and valve rod on the valve body, the top of described valve rod is arranged in the cavity of described support, described Electrical heads is provided with fixed core and the moving iron core that cooperatively interacts, it is characterized in that described moving iron core connects the Partner of described rotating shaft by preceding driving mechanism, the top of described valve rod connects the drive end of described rotating shaft by the back driving mechanism, the outer wall of described support is passed in described rotating shaft, be rotatably connected with described support sealing, its drive end is positioned at the cavity of described support, Partner is positioned at the outside of described support, be connected with flat bracket on the described support, described flat bracket is interconnected by some level boards and some vertical plate and forms, one or two described vertical plate is provided with rotary shaft hole, and the rotary shaft hole on the described vertical plate is passed or penetrates in described rotating shaft, passes through rolling bearing, axle sleeve or unthreaded hole Placement are connected with described vertical plate.
2. high power high-temperature solenoid valve as claimed in claim 1, it is characterized in that described preceding driving mechanism comprises pull bar and connecting rod II, the Partner of described pull bar is connected with described moving iron core, drive end is connected with the Partner of described connecting rod II, and the drive end of described connecting rod II is fixedlyed connected with the Partner of described rotating shaft.
3. high power high-temperature solenoid valve as claimed in claim 2, the Partner that it is characterized in that described pull bar is fixedly connected or is rotatably connected with the Placement of described moving iron core, and the drive end of described pull bar and the Placement of the Partner of described connecting rod II are to fixedly connected or be rotatably connected.
4. high power high-temperature solenoid valve as claimed in claim 3 is characterized in that described back driving mechanism comprises connecting rod I, and the Partner of described connecting rod I is fixedly connected with the drive end of described rotating shaft, and drive end is fixedly connected or be rotatably connected with the top of described valve rod.
5. high power high-temperature solenoid valve as claimed in claim 4, it is characterized in that being provided with medium channel in the described valve body, be provided with the branch fluidization tower in the entrance cavity of described medium channel, described minute fluidization tower is positioned at the centre of entrance cavity, vertical extent, two ends connect into the inwall up and down in oral cavity respectively about it.
6. high power high-temperature solenoid valve as claimed in claim 5 is characterized in that the wedge shape of the cross section of described minute fluidization tower for circle, ellipse or corner's slyness, and the drift angle of wedge shape is towards the MEDIA FLOW Inbound.
7. as the described high power high-temperature solenoid valve of arbitrary claim among the claim 2-6, it is characterized in that described preceding driving mechanism is provided with handle, described handle is fixedlyed connected with described connecting rod II.
8. high power high-temperature solenoid valve as claimed in claim 1, it is characterized in that described valve body adopts the pilot valve structure, be provided with main valve sealing pair and secondary valve seal pair, on the described valve body valve gap is housed, described valve gap is provided with auxiliary-seat, described auxiliary-seat is provided with the II sealing surface, and described valve rod lower end is provided with the I sealing surface of described secondary valve seal pair, together constitutes described secondary valve seal pair with II sealing surface on the auxiliary-seat.
9. high power high-temperature solenoid valve as claimed in claim 8, it is characterized in that described valve body is provided with main valve seat, described main valve sealing pair is made of the main valve I sealing surface of valve cup bottom and the main valve II sealing surface on the main valve seat, described valve cup is positioned at the medium channel of described valve body, be provided with guide sleeve in the lumen in the described medium channel, described valve cup is positioned at described guide sleeve, move with described guide sleeve and to cooperate, described valve cup bottom and lower side are provided with the inside and outside damping hole of connecting valve cup, described valve body is provided with valve gap, and described support is fixed on the described valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101811817A CN101418870B (en) | 2008-11-26 | 2008-11-26 | High power high-temperature solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101811817A CN101418870B (en) | 2008-11-26 | 2008-11-26 | High power high-temperature solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418870A CN101418870A (en) | 2009-04-29 |
| CN101418870B true CN101418870B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101811817A Expired - Fee Related CN101418870B (en) | 2008-11-26 | 2008-11-26 | High power high-temperature solenoid valve |
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| CN (1) | CN101418870B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949461B (en) * | 2009-07-10 | 2013-04-17 | 浙江三花制冷集团有限公司 | Electromagnetic valve capable of being closed during energization and manufacturing method thereof |
| ITFI20120074A1 (en) * | 2012-04-12 | 2013-10-13 | Nuovo Pignone Srl | "VALVE" |
| CN105650329B (en) * | 2016-03-08 | 2018-03-06 | 陈国顺 | Super-pressure big caliber electromagnetic valve |
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| CN101418870A (en) | 2009-04-29 |
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