CN202074046U

CN202074046U - Electrical-protection type electric and electromagnetic dual-purpose electromagnetic valve

Info

Publication number: CN202074046U
Application number: CN2011201481087U
Authority: CN
Inventors: 陈国顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2011-12-14
Anticipated expiration: 2021-05-11

Abstract

The utility model relates to an electrical-protection type electric and electromagnetic dual-purpose electromagnetic valve, which comprises a main valve body and an electromagnetic head, wherein the electromagnetic head is installed on the main valve body, the electromagnetic head is provided with an upper electromagnetic device, a linear-motor device and a lower electromagnetic device, motor movers and movable iron cores are axially arranged and mutually connected into a movable assembly according to an arranging sequence identical to that of respective corresponding motor-stator assemblies and coil assemblies, the main valve body comprises a main-body shell, a main valve-sealing pair and an auxiliary valve-sealing pair are arranged in the main-body shell, a lower movable iron core is connected with the upper end of a valve rod, and the lower end of the valve rod is provided with an auxiliary valve-sealing part. The electrical-protection type electric and electromagnetic dual-purpose electromagnetic valve has less electricity consumption and a good sealing effect, a driving force is not changed due to the size of an air gap, requirements on opening and closing the driving force are low, and the electrical-protection type electric and electromagnetic dual-purpose electromagnetic valve can be mainly used as various electromagnetic valves, particularly large-caliber, large-flow and high-pressure electromagnetic valves.

Description

The moving double-purpose solenoid valve of electricity guarantor formula electric electromagnetic

Technical field

The utility model relates to the moving double-purpose solenoid valve of a kind of electric guarantor's formula electric electromagnetic, can be used as the solenoid valve solenoid valve of heavy caliber, big flow, high pressure particularly under the various occasions.

Background technique

The Electrical heads of existing solenoid valve adopts calutron, be provided with the coil, static iron core and the moving iron core that complement one another, produce magnetic field behind the coil electricity, make static iron core and the mutual adhesive of moving iron core, then magnetic force disappearance during coil blackout, rely on Returnning spring etc. to reset, static iron core and moving iron core be separated from each other, drive thus valve rod up and down straight line move to realize the opening and closing of valve.The defective of this class solenoid valve mainly shows: 1. behind the coil electricity, square being inversely proportional to of the suction-combining force between static iron core and the moving iron core and gap length between the two, when valve aperture during greater than 50mm, gap length can reach more than the 15mm usually, and at this moment the power of coil will could drive valve opening and closing very greatly, so the cost height, energy consumption is big, temperature rise, so the valve of the above bore of 15mm selects for use solenoid valve uneconomical, is difficult to promote the use of in practice; 2. the driving force of sound iron core adhesive generation can only make valve rod upwards move, and can not be to moving down, therefore its Electromagnetic Drive is a unidirectional drive, effect, drive valve rods such as Returnning spring need be set to move down, therefore internal structure complexity not only, but reliability and the driving force of valve rod all is restricted.

The model utility content

For overcoming the above-mentioned defective of prior art, the utility model provides a kind of electric guarantor's formula electric electromagnetic to move the double-purpose solenoid valve, no matter the air gap between the Electrical heads sound iron core of this solenoid valve has much, the driving force that produces is constant substantially, and can carry out the bi-directional drive of opening and closing to valve, realization keeps the electromagnetic force of opening state and closed condition, and the driving force that its opening and closing need is little, and the rate-of flow of adaptation is big, pressure is big.

The utility model can adopt following technical proposal and any one further to limit or specialize:

A kind of electric guarantor's formula electric electromagnetic moves the double-purpose solenoid valve, comprise valve body and the Electrical heads that is installed on the described valve body, described Electrical heads is provided with linear electric motor device and calutron, described linear electric motor device is provided with the motor stator component and the motor that complement one another and moves son, described calutron is provided with the coil block that complements one another, static iron core and moving iron core, be provided with coil in the described coil block, described motor stator component and described coil block axially-aligned also are interconnected to fixing-assembly, described motor moves son the put in order axially-aligned and interconnect become a moving assembly identical with described coil block with each self-corresponding described motor stator component with described moving iron core foundation, described valve body comprises main body cover, be provided with main valve sealing pair and secondary valve seal pair in the described main body cover, main valve valve seat in the described main valve sealing pair is arranged on the medium channel of described main body cover, its center through hole constitutes the part of medium channel, the space, both sides of the secondary valve base in the described secondary valve seal pair is communicated with the medium channel of described main valve valve seat both sides respectively, and described moving assembly connects secondary valve seal in the described secondary valve seal pair by valve rod.

Preferably, the quantity of described calutron can be one or two, when the quantity of described calutron is one, described calutron can be the magnetic device that powers on, also can be following calutron, when the quantity of described calutron is two, described calutron generally includes calutron and following calutron, the described coil block of going up calutron, static iron core and moving iron core are respectively the upper set of coils part, last static iron core and last moving iron core, the described coil block of calutron down, static iron core and moving iron core are respectively the lower coil assembly, following static iron core and following moving iron core, described upper set of coils part be positioned at described motor stator component above, described lower coil assembly be positioned at described motor stator component below, described upward static iron core is positioned at the top of described moving assembly, described static iron core down is positioned at the below of described moving assembly, described moving iron core be positioned at described motor move son above, described moving iron core down be positioned at described motor move son below.When only being provided with calutron or following calutron, behind the coil electricity of last calutron, coil produces magnetic field and makes static iron core and last moving iron core magnetization, can make moving assembly stably remain on a high position by the adhesive of sound iron core in the last calutron thus, realize the electricity guarantor of opening state, guarantee the reliability and stability of valve opening, perhaps instantly behind the coil electricity of calutron, coil produces magnetic field and makes down static iron core and down moving iron core magnetization, can make moving assembly stably remain on low level by the adhesive of sound iron core in the following calutron thus, realize the electricity guarantor of closed condition, guarantee the reliability and stability of valve closing state and form enough sealings, and on, following calutron is provided with simultaneously, can make moving assembly all be able to electricity when high-order and low level protects, realize that thus valve can both stablize in opening state and closed condition, and form enough sealings in off position the time.Therefore, can select accordingly according to the actual demand of valve.

Preferably, described main body cover is made up of valve body and the valve gap that is installed on the described valve body, medium channel in the described main body cover is by the snout cavity that is interconnected, lumen, cavity of resorption and outlet plenum are formed, described snout cavity is communicated with the side of described lumen, described cavity of resorption was communicated with the following of described lumen, be provided with the main valve valve seat of level between described lumen and the described cavity of resorption, described valve gap is provided with the valve cup guide sleeve of downward extension, described valve cup guide sleeve extends in the described lumen, leave axial spacing between its lower end surface and the described main valve valve seat, be provided with valve cup moving up and down in the described lumen, the madial wall Spielpassung of the outer side wall of described valve cup and described valve cup guide sleeve, the cup end of described valve cup, be provided with the main valve Sealing that constitutes the main valve sealing pair with described main valve valve seat jointly, the bottom of described valve cup is provided with the damping hole that passes wall of cup, the cup end central authorities of described valve cup are provided with axial pod apertures, described pod apertures is communicated with described lumen and described cavity of resorption, the top of described pod apertures is provided with the secondary valve base of level, described moving assembly is connected with the upper end of described valve rod, described valve rod extends down into the lumen in the described valve body, and the lower end of described valve rod is provided with the secondary valve seal that constitutes secondary valve seal pair with described secondary valve base jointly.

Preferably, described fixing-assembly is provided with axial plunger tube hole, described plunger tube is equipped with shared plunger tube on the hole, when the quantity of described calutron is two, described upward static iron core is fixedly mounted on the top of the inner chamber of described plunger tube, described static iron core down is fixedly mounted on the bottom of the inner chamber of described plunger tube, on described moving assembly described in described plunger tube between static iron core and the following static iron core, and with the inwall Spielpassung of described plunger tube, to allow moving assembly in described plunger tube, to move up and down, the axial length of described moving assembly is less than the distance between the opposing end surface of described upward static iron core and following static iron core, form thus and be positioned at moving assembly and last, air gap between the following static iron core, the position of this air gap or distribution mode change along with moving of moving assembly, when described moving assembly is in a high position, described air gap is between the upper-end surface of the lower end surface of described moving assembly and described static iron core down, when described moving assembly is in low level, described air gap the upper-end surface of described moving assembly and described between the lower end surface of static iron core, the axial overall length of described air gap is the maximum moving distance of described moving assembly, described valve gap is provided with the plunger tube mounting hole of axial penetration, described plunger tube passes described plunger tube mounting hole, its outer wall cooperates with the inwall of described plunger tube mounting hole, to install and fixing described plunger tube, the edge welding of the lower end of described plunger tube and described plunger tube mounting hole, not only played fixedly connected effect thus, also formed sealing simultaneously gap between plunger tube and the plunger tube mounting hole.

Preferably, can be provided with the valve rod hole that axially runs through on the static iron core under described, the upper end of described valve rod is fixedly connected on the described moving iron core down, described valve rod passes described valve rod hole, with described valve rod hole Spielpassung, also be provided with axially extended stem sleeve on the described valve cup, described valve rod passes described stem sleeve, with described stem sleeve Spielpassung, can drive valve rod by moving assembly (following moving iron core) thus moves up and down, and guide moving of described valve rod by described valve rod hole and stem sleeve, avoid valve rod to rock.

Preferably; described upper set of coils part can also comprise the last magnet case that is the housing shape; the coil of described upper set of coils part is last coil; be fixedly mounted on described going up in the magnet case; described motor stator component can comprise motor stator and motor housing; described motor stator is fixedly mounted in the described motor housing; described lower coil assembly can also comprise the following magnet case that is the housing shape; the coil of described lower coil assembly is a lower coil; be fixedly mounted in the described magnet case down; not only form the shell protection of coil (comprising motor stator) thus, but also form corresponding magnetic circuit by last magnet case and following magnet case.

Preferably, the described magnet case of going up, last coil, last static iron core, go up moving iron core, motor housing, motor stator, motor moves son, following magnet case, lower coil, following static iron core, following moving iron core, valve rod, secondary valve seal pair and main valve sealing pair all adopt symmetrical main body structure, be generally cylindrical or cylindrical shape, its each axis of symmetry is overlapped, with simplified structure, improve transmission performance, convenient processing and assembling, the described magnet case of going up, described motor housing and described magnet case down are right after vertically successively, to reduce volume and to improve the integrity of fixing-assembly, described going up moved iron core, described motor moves son and described time moving iron core is right after vertically successively, to reduce volume and to improve the integrity of moving assembly.

Preferably; described moving assembly can also comprise protecting jacket in a tubular form; described moving iron core, motor move son and following moving iron core is fixedly mounted in the described protecting jacket; be the shell and the installation basis of moving assembly thus with the protecting jacket; help improving moving assembly integrity, intensity and wear resistance, the minimizing fault also improves working life.The upper and lower end face of described protecting jacket is concordant with the lower end surface of described moving iron core down with the described upper-end surface of moving iron core of going up respectively; to avoid unnecessary volume; the outer side surface of described protecting jacket constitutes the outer side surface of described moving assembly; usually should have corresponding degree of finish and antiwear characteristic; the external diameter of described protecting jacket should be slightly less than the internal diameter of described plunger tube, with the Spielpassung between the inwall of realizing described moving assembly and described plunger tube.

Preferably, the main body profile of described upper set of coils part, motor stator component and lower coil assembly is cylindrical, and the appearance profile of described upward coil, motor stator and lower coil is also cylindrical, to improve electromagnetic property, reduce volume and materials consumption, and convenient the use.The external diameter of described upper set of coils part and described lower coil assembly and axial length are all less than the external diameter and the axial length of described motor stator component, the described external diameter of going up coil and described lower coil and axial length are all less than the external diameter and the axial length of described motor stator, the power of described electric machine and calutron can reasonably be set thus, under the prerequisite that guarantees the valve proper functioning, power consumption of avoiding as much as possible and volume.

Preferably; described moving iron core and down moving iron core to move son fastening by screw or bolt and nut with described motor respectively; with strengthen described on; down moving iron core moves join strength between the son with described motor; improve the whole shape of described moving assembly; and it is simple in structure; it is convenient to implement; the lower end cylindrical of the upper end cylindrical of described moving iron core and described moving iron core down welds with the top and bottom of described protecting jacket respectively; the lower end cylindrical of the upper end cylindrical of described upward static iron core and described static iron core down welds with the top and bottom of described plunger tube respectively; guaranteeing to connect under the firm prerequisite thus, allowing to form relevant plane or improve the planeness on relevant plane by simple mechanical grinding mode.

Preferably, the bottom of described plunger tube passes and extension downwards from the bottom opening in described plunger tube hole, constitutes cylindrical shoulder structure with the described cylindrical of magnet case down, and the shoulder during with other parts assemblings of formation and valve is located.The upper end of described plunger tube and described upper wall inboard of going up magnet case join, described top of going up calutron is provided with the described magnet case of going up is fastened on described fastening with screw assembly or bolt and nut component on the static iron core of going up, be equipped with back-up ring in described screw assembly or the bolt and nut component, the mounting hole hole wall of described valve gap axially raises up, its upper-end surface forms the installing and locating plane, contacts with the described lower surface of the lower wall of magnet case down.During assembling with the corresponding construction location and installation of described cylindrical shoulder structure and valve gap (or other parts on the valve), because the lower end of plunger tube welds together with described valve gap, the screw or the nut (fixedly connected described the going up on the static iron core in the lower end of bolt) that screw in described screw assembly or the bolt and nut component just can tighten together described upper set of coils part, motor stator component and lower coil assembly by back-up ring, are very easy to the installation of valve thus.

The beneficial effects of the utility model are: owing to adopted the power plant of linear electric motor device and two kinds of different qualities of calutron, described linear electric motor device adopts the basic structure of linear electric motor, working principle work according to linear electric motor, therefore can make motor move sub-linear reciprocation by the change step mode moves, doing up and down by unified moving assembly drive valve rod thus, straight line moves, realization is to valve opening and the bi-directional drive of closing, and saved the Returnning spring under the prior art, simplify the structure, improved the reliability of valve, guaranteed also that simultaneously driving force not because of the size of air gap between the sound iron core changes, is adapted to the driving requirement of large bore valves; Because can be according to the characteristics of valve, Electrical heads is selected suitable step mode, make the linear electric motor device in for example opening and closing process and have respective direction driving force calutron and switch on simultaneously, to form enough strong driving force, and under unlatching or closed condition, make linear electric motor device no electric circuit, and switch on only for calutron with respective direction driving force, valve is remained under this unlatching or the closed condition by the suction-combining force between the sound iron core of respective electrical magnetic device, realized the electricity guarantor of valve opening and closed condition, the reliability and the sealability of work have been improved, also the power consumption owing to calutron under the attracting state is very little simultaneously, is reduced to the unlatching or the required power consumption of closed condition that keep valve thus effectively; Because the main valve sealing pair that valve body adopts and the combination of secondary valve seal pair, directly drive the Sealing of secondary valve seal pair by valve rod, realization is to the opening and closing of secondary valve seal pair, and then flowing by various medium, form the moving valve cup rising of certain pressure medium difference band or further compress the valve cup, reduce valve opening thus significantly and closed required valve rod driving force, reduce the power requirements of power consumption and Electrical heads each several part, can be advantageously used in the big big flow medium of pressure; Owing to can also require to select multiple driving mode according to the keying of valve, for example only select the linear electric motor device for use, only select calutron or use linear electric motor device and calutron simultaneously for use, realized multiple driving mode electronic, that electromagnetism is moving thus.

The utility model can be used as the solenoid valve under the various occasions, the particularly bore heavy caliber solenoid valve greater than 50mm, and is adapted to the occasion of high pressure.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

The utility model can be used as the solenoid valve under the various occasions, doing up and down by Electrical heads drive valve rod, straight line moves, to realize the opening and closing of secondary valve seal pair, and the media flow of passing through valve body inside forms pressure difference, rely on the pressure medium difference that the valve cup is mentioned or further compress the valve cup, realize the complete opening of valve or close and avoid leakage under the closed condition, under valve opening or closed condition, can be as required to last calutron or calutron energising down, rely on the mutual adhesive of sound iron core in the corresponding calutron, keep the unlatching or the closed condition of valve reliably.

Valve rod described in the utility model, main valve sealing pair, secondary valve seal pair and main body cover can adopt various prior aries or other suitable technology, and mode of communicating between its secondary valve seal pair and the main valve sealing pair and valve opening and the working method of closing also can adopt prior art or other possible technology of any suitable.

Below, in conjunction with Fig. 1, be example with an embodiment of the present utility model, the utility model is described in detail.

In the embodiment shown in fig. 1, solenoid valve of the present utility model mainly by valve body 9, valve cup 7, valve rod 8, valve gap 10, plunger tube 25, lower coil 27, motor stator 22, go up coil 20, go up static iron core 16, down static iron core 11, motor move son 13, upward moving iron core 14, moving iron core 12 and protecting jacket 24 are formed down.Described valve body 9 inner chambers are provided with valve seat (main valve valve seat), described valve cup 7 lower ends are provided with Sealing (main valve Sealing), described valve body 9 valve seats and valve cup 7 Sealings are formed main valve sealing pair 4, after main valve sealing pair 4 is opened, then allow MEDIA FLOW to flow to outlet plenum 5 by the valve seat mesopore of snout cavity 31 main valve sealing pairs.The end of described valve cup, be provided with the pod apertures 2 that is communicated with part in described cavity of resorption 1 and the lumen (part in the valve cup), and the top of described pod apertures 2 is an auxiliary-seat, constitutes secondary valve seal pair 3 with the secondary valve seal of valve rod 8 lower ends.Described valve gap 10 is connected with valve body 9 usefulness engage thread; described valve gap 10 upper ends and plunger tube 25 usefulness are welded to connect; the described top of static iron core 16 in plunger tube 25 inner chambers of going up; with being welded to connect; described lower coil 27 is contained in down in the magnet case 26; described lower coil 27 and following magnet case 26 are formed the lower coil assembly; its endoporus and plunger tube 25 external diameters match; constitute the part in plunger tube hole; the described lower end (lower wall outer surface) and the upper-end surface of described valve gap 10 of magnet case 26 down contact; described motor stator 22 is contained in the motor housing 21; motor stator 22 and motor housing 21 are formed motor stator component; its endoporus and plunger tube 25 external diameters match; also constitute the part in plunger tube hole; the upper end of the lower end of described motor housing 21 and described lower coil assembly contacts; the described coil 20 of going up is contained in the magnet case 19; described coil 20 and the last magnet case 19 composition upper set of coils parts gone up; its endoporus and plunger tube 25 external diameters match; also constitute the part in plunger tube hole; the lower end of described upper conductor (outer surface of lower wall) and the upper end of motor stator component contact; in described upper set of coils part upper end ring washer 17 is housed; with nut 18 ring washer is fixed on the static iron core 16; because the lower end and the described valve gap of described plunger tube are welded to connect; thus by precession nut 18; cooperatively interact with the upper-end surface of described valve gap; jointly with described upper set of coils part; motor stator component and lower coil assembly are clamped together; realize described upper set of coils part; being mutually permanently connected and this solenoid valve installing and fixing on valve body between motor stator component and the lower coil assembly; described valve cup 7 is positioned at the inner chamber of described valve gap 10; and by with the gap fiting mode of described valve gap; can move up and down with respect to valve gap; the bottom of described valve rod 8 is arranged in the inner chamber of valve cup 7; the top of valve rod 8 is positioned at the described endoporus of static iron core 11 down; the upper end of described valve rod 8 links to each other with described moving iron core 12 down; described valve rod 8 can move (Spielpassung) by easy on and off in valve cup 7 and following static iron core 11 endoporus; the described static iron core 16 of going up is contained on plunger tube 25 endoporus with following static iron core 11; in the lower end; and be welded to connect; on described between static iron core 16 and the following static iron core 11; in described plunger tube 25 endoporus moving assembly is housed; described moving assembly moves son 13 by motor; go up moving iron core 14; moving iron core 12 and protecting jacket 24 are formed down; described motor moves sub 13 lower ends moving iron core 12 is housed down; moving iron core 14 is equipped with in the upper end; connect with bolt between them; described motor moves son 13; going up the moving iron core 14 and the outer ring of following moving iron core 12 and the endoporus of protecting jacket 24 matches; described protecting jacket 24 and last moving iron core 14; moving iron core 12 usefulness are welded to connect down, and described moving assembly can freely move up and down in plunger tube 25.

Working principle of the present utility model or working procedure are:

Described motor stator 22; last coil 20; when lower coil 27 does not have electricity; at moving assembly; under the action of gravity of valve rod 8 and valve cup 7; moving assembly and valve rod move down into extreme lower position; so the secondary valve seal of valve rod 8 lower ends and the secondary valve base of valve cup 7 contact and certain extruding force are arranged; the Sealing of valve cup 7 lower ends and the valve seat on the valve body 9 contact and certain extruding force are arranged; this moment, medium entered valve body from the snout cavity 31 that is positioned at valve body 9 entrance points; along valve body 9; gap between the valve gap 10 flows to the outer part 6 of lumen; damping hole 30 through valve cup 7; gap between valve cup 7 and the valve gap 10 flows to the middle part 29 of lumen and the top 28 of lumen; because between valve rod 8 and the following static iron core 11 is Spielpassung; also Spielpassung between protecting jacket 24 and the plunger tube 25; so the medium in the middle part 29 of lumen and the top 28 of lumen can flow to air gap 15 by above-mentioned gap; along with time lengthening; at snout cavity 31; the outer part 6 of lumen; the middle part 29 of lumen; the top 28 of lumen and the pressure medium in the air gap 15 reach maximum value; because the outlet plenum 5 of valve body 9 links to each other with following pipe fitting; so the pressure medium of outlet plenum 5 and cavity of resorption 1 is zero or very low; so valve cup 7 and valve rod 8 move down under the effect of pressure medium difference; and the lower end of valve cup 7 by the valve seat holder; the lower end of valve rod 8 by the auxiliary-seat holder; so main valve sealing pair 4; secondary valve seal pair 3 is at valve rod 8; valve cup 7 is issued to sealing, valve closing with the gravity and the effect of pressure medium difference of moving assembly.

When the difference of the pressure medium of the pressure medium of snout cavity 31 and cavity of resorption 1 little during to certain value, because the pressure medium difference is not enough, the sealing extruding force of main valve sealing pair 4 and secondary valve seal pair 3 can not realize desired sealing inadequately, the secondary appearance of main valve sealing pair 4 and secondary valve seal is leaked, reaching sealing adds extruding force then must for corresponding sealing pair, so give lower coil 27 energisings, lower coil 27 energising backs produce magnetic field, under magnetic line of force effect, down moving iron core 12 is by static iron core 11 adhesives down, produce certain suction down between moving iron core 12 and the following static iron core 11, this suction along with down between moving iron core 12 and the following static iron core 11 distance dwindle and increase, under this suction, the rising of the sealing extruding force of main valve sealing pair 4 and secondary valve seal pair 3, main, secondary valve seal pair reaches sealing, has guaranteed closing of valve.

When valve will be opened, give motor stator 22 and 20 energisings of last coil, give lower coil 27 outages, along with lower coil 27 outages, suction disappears between moving iron core 12 and the following static iron core 11 down, motor stator 22 energising backs produce magnetic field, make motor move son 13 and produce induction current, induction current produces the magnetic force that moves up under the action of a magnetic field, last coil 20 energising backs produce magnetic field, produce suction between last static iron core 16 and the upward moving iron core 14, under mobile magnetic force and suction, moving assembly drives valve rod 8 and is pulled upwardly, the lower end of valve rod 8 has secondary valve seal, secondary valve seal is owing to the secondary 3 upper and lower medium pressure difference effects of secondary valve seal are pressed on the secondary valve base, mobile magnetic force on acting on valve rod 8 and suction make a concerted effort to surpass the sealing extruding force of secondary valve seal pair 3 time, the secondary valve seal of valve rod band is pulled upwardly, secondary opening of valves, behind the secondary opening of valves, the middle part 29 of lumen, the top 28 of lumen and the medium in the air gap 15 flow to the cavity of resorption 1 of valve body 9 by secondary valve base and pod apertures 2, outlet plenum 5 through valve body 9 flows out valve body 9 then, while is along with the outflow of medium, also some medium is through damping hole 30, the gap flows to part 29 in the lumen between valve cup 7 and the valve gap 10, but the passage that medium flows out is big, the passage that flows to is little, so behind certain hour, the middle part 29 of lumen, the top 28 and the pressure medium in the air gap 15 of lumen are lower than the pressure medium in the outer part 6 of lumen, in this pressure difference, under the mobile magnetic force of valve rod 8 and the acting in conjunction of suction, move on the valve cup 7, air gap 15 disappears, go up moving iron core 14 and 16 adhesives of last static iron core, main valve is opened, and valve opening finishes.

Behind the valve opening, under the control of control system, motor stator 22 outages, last coil 20 continues energising, valve rod 8 and moving assembly guarantee to be in the extreme higher position under the suction of last coil 20, upward moving iron core 14 and last static iron core 16 are in attracting state, and valve keeps opening state.

When valve will be closed, give last coil 20 outages, give motor stator 22, lower coil 27 energisings are along with last coil 20 outages, suction disappears between last static iron core 16 and the upward moving iron core 14, the opposite threephase AC of threephase AC phase place that when motor stator 22 passes to valve opening, leads to, motor stator produces magnetic field, under this shifting magnetic field effect, motor moves son 13 and produces induction current, and induction current produces under the action of a magnetic field and moves down magnetic force; Lower coil 27 energising backs produce magnetic field, produce suction between following static iron core 11 and the following moving iron core 12.Under gravity, mobile magnetic force and suction acting in conjunction, moving assembly drives valve rod 8 and moves down.The lower end of valve rod 8 is provided with Sealing, along with valve rod 8 moves down, the Sealing and the auxiliary-seat of valve rod 8 lower ends are contacted, the following end seal and the main valve valve seat of valve cup 7 contact, from gravity, motor moves son 13 and moves under the suction acting in conjunction of magnetic force and lower coil 27, overcoming valve rod 8 moves surface friction drag and makes main valve sealing pair 4, secondary valve seal pair 3 reaches sealing, this moment, medium was by damping hole 30, the gap flows to the middle part 29 of lumen between valve cup 7 and the valve gap, the top 28 of lumen and air gap 15, make the middle part 29 of lumen, the top 28 of lumen and the pressure medium in the air gap 15 rise gradually, simultaneously the medium in the cavity of resorption 1 of valve body 9 through outlet plenum 5 to outflow, pressure medium in the cavity of resorption 1 of valve body 9 descends gradually, so the upper and lower medium pressure difference of main valve sealing pair 4 and secondary valve seal pair 3 forms gradually, under these pressure medium difference effects, main valve, the secondary extruding force of secondary valve seal is bigger, better tightness, valve closing, behind the valve closing, through control system, motor stator 22 outages, lower coil 27 continues energising, valve rod 8 and moving assembly guarantee to be in extreme lower position under the suction of lower coil 27, make the sealing force of main valve sealing pair and secondary valve seal pair keep certain value, down moving iron core 12 and following static iron core 11 are in attracting state, and valve keeps closed condition.

With respect to prior art, major advantage of the present utility model comprises:

(1) it is relevant with power of motor that motor moves son 13 mobile magnetic force, and it is irrelevant with its running length, so motor moves son 13 mobile magnetic force and air gap 15 sizes are irrelevant, the bore of tube valve does not have much, air gap how long to have, and valve rod moves the open and close that son can both be realized valve under driving at motor.

(2) motor moves and has moved driving force on the son, and moving down also has driving force, so have two driving action.

(3) main valve sealing pair and secondary valve seal pair cooperatively interacts, reduced the required driving force of valve rod significantly, not only reduced the particularly power requirements of linear electric motor device of Electrical heads each several part thus, but also more effectively solved the valve opening under big pressure, the big flow and closed difficult problem.

(4) solenoid valve being difficult for making large bore valves becomes big smaller diameter valve and can both do.

The utility model alleged " on ", D score is relative position, only be used to the facility explained, be not used in the actual restriction of using the orientation of this solenoid valve, because can driving and can adopt separately or cooperate by the linear electric motor device, the valve rod in the utility model adopt the power-on and power-off magnetic device to drive, the deadweight action direction that can overcome or remedy thus because of using the orientation to cause changes the negative effect that brings, but as optimal way, can with described in the utility model specification " on ", the D score direction serve as in the actual use upper and lower to.

Claims

1. electric guarantor's formula electric electromagnetic moves the double-purpose solenoid valve, comprise valve body and the Electrical heads that is installed on the described valve body, it is characterized in that described Electrical heads is provided with linear electric motor device and calutron, described linear electric motor device is provided with the motor stator component and the motor that complement one another and moves son, described calutron is provided with the coil block that complements one another, static iron core and moving iron core, be provided with coil in the described coil block, described motor stator component and described coil block axially-aligned also are interconnected to fixing-assembly, described motor moves son the put in order axially-aligned and interconnect become a moving assembly identical with described coil block with each self-corresponding described motor stator component with described moving iron core foundation, described valve body comprises main body cover, be provided with main valve sealing pair and secondary valve seal pair in the described main body cover, main valve valve seat in the described main valve sealing pair is arranged on the medium channel of described main body cover, its center through hole constitutes the part of medium channel, the space, both sides of the secondary valve base in the described secondary valve seal pair is communicated with the medium channel of described main valve valve seat both sides respectively, and described moving assembly connects secondary valve seal in the described secondary valve seal pair by valve rod.

2. electric guarantor's formula electric electromagnetic as claimed in claim 1 moves the double-purpose solenoid valve, the quantity that it is characterized in that described calutron is one or two, when the quantity of described calutron is one, described calutron is last calutron or following calutron, when the quantity of described calutron is two, described calutron comprises calutron and following calutron, the described coil block of going up calutron, static iron core and moving iron core are respectively the upper set of coils part, last static iron core and last moving iron core, the described coil block of calutron down, static iron core and moving iron core are respectively the lower coil assembly, following static iron core and following moving iron core, described upper set of coils part be positioned at described motor stator component above, described lower coil assembly be positioned at described motor stator component below, described upward static iron core is positioned at the top of described moving assembly, described static iron core down is positioned at the below of described moving assembly, described moving iron core be positioned at described motor move son above, described moving iron core down be positioned at described motor move son below.

3. electric guarantor's formula electric electromagnetic as claimed in claim 2 moves the double-purpose solenoid valve, it is characterized in that described main body cover is made up of valve body and the valve gap that is installed on the described valve body, medium channel in the described main body cover is by the snout cavity that is interconnected, lumen, cavity of resorption and outlet plenum are formed, described snout cavity is communicated with the side of described lumen, described cavity of resorption was communicated with the following of described lumen, be provided with the main valve valve seat of level between described lumen and the described cavity of resorption, described valve gap is provided with the valve cup guide sleeve of downward extension, described valve cup guide sleeve extends in the described lumen, leave axial spacing between its lower end surface and the described main valve valve seat, be provided with valve cup moving up and down in the described lumen, the madial wall Spielpassung of the outer side wall of described valve cup and described valve cup guide sleeve, the cup end of described valve cup, be provided with the main valve Sealing that constitutes the main valve sealing pair with described main valve valve seat jointly, the bottom of described valve cup is provided with the damping hole that passes wall of cup, the cup end central authorities of described valve cup are provided with axial pod apertures, described pod apertures is communicated with described lumen and described cavity of resorption, the top of described pod apertures is provided with the secondary valve base of level, described moving assembly is connected with the upper end of described valve rod, described valve rod extends down into the lumen in the described valve body, and the lower end of described valve rod is provided with the described secondary valve seal that constitutes secondary valve seal pair with described secondary valve base jointly.

4. electric guarantor's formula electric electromagnetic as claimed in claim 3 moves the double-purpose solenoid valve, the quantity that it is characterized in that described calutron is two, described fixing-assembly is provided with axial plunger tube hole, described plunger tube is equipped with shared plunger tube on the hole, described upward static iron core is fixedly mounted on the top of the inner chamber of described plunger tube, described static iron core down is fixedly mounted on the bottom of the inner chamber of described plunger tube, on described moving assembly described in described plunger tube between static iron core and the following static iron core, and with the inwall Spielpassung of described plunger tube, the axial length of described moving assembly is less than the distance between the opposing end surface of described upward static iron core and following static iron core, described valve gap is provided with the plunger tube mounting hole of axial penetration, described plunger tube passes described plunger tube mounting hole, its outer wall cooperates with the inwall of described plunger tube mounting hole, the edge welding of the lower end of described plunger tube and described plunger tube mounting hole.

5. electric guarantor's formula electric electromagnetic as claimed in claim 4 moves the double-purpose solenoid valve, it is characterized in that described static iron core down is provided with the valve rod hole that axially runs through, the upper end of described valve rod is fixedly connected on the described moving iron core down, described valve rod passes described valve rod hole, with described valve rod hole Spielpassung, also be provided with axially extended stem sleeve on the described valve cup, described valve rod passes described stem sleeve, with described stem sleeve Spielpassung.

6. electric guarantor's formula electric electromagnetic as claimed in claim 5 moves the double-purpose solenoid valve, it is characterized in that described upper set of coils part also comprises the last magnet case that is the housing shape, the coil of described upper set of coils part is last coil, be fixedly mounted on described going up in the magnet case, described motor stator component comprises motor stator and motor housing, described motor stator is fixedly mounted in the described motor housing, described lower coil assembly also comprises the following magnet case that is the housing shape, the coil of described lower coil assembly is a lower coil, is fixedly mounted in the described magnet case down.

7. electric guarantor's formula electric electromagnetic as claimed in claim 6 moves the double-purpose solenoid valve, it is characterized in that the described magnet case of going up, last coil, last static iron core, go up moving iron core, motor housing, motor stator, motor moves son, following magnet case, lower coil, following static iron core, following moving iron core, valve rod, secondary valve seal pair and main valve sealing pair all adopt symmetrical main body structure, its each axis of symmetry is overlapped, the described magnet case of going up, described motor housing and described magnet case down are right after vertically successively, and described going up moved iron core, described motor moves son and described moving iron core down is right after vertically successively.

8. as claim 1; 2; 3; 4; 5; 6 or 7 described electric guarantor's formula electric electromagnetics move the double-purpose solenoid valve; it is characterized in that described moving assembly also comprises protecting jacket in a tubular form; described going up moved iron core; motor moves son and following moving iron core is fixedly mounted in the described protecting jacket; on the described protecting jacket; the lower end surface is concordant with the lower end surface of described moving iron core down with the described upper-end surface of moving iron core of going up respectively; the outer side surface of described protecting jacket constitutes the outer side surface of described moving assembly; the external diameter of described protecting jacket is slightly less than the internal diameter of described plunger tube, with the Spielpassung between the inwall of realizing described moving assembly and described plunger tube.

9. the described electric guarantor's formula electric electromagnetic of claim 8 moves the double-purpose solenoid valve, the main body profile that it is characterized in that described upper set of coils part, motor stator component and lower coil assembly is cylindrical, the appearance profile of described upward coil, motor stator and lower coil is also cylindrical, the external diameter of described upper set of coils part and described lower coil assembly and axial length be all less than the external diameter and the axial length of described motor stator component, and the described external diameter of going up coil and described lower coil and axial length are all less than the external diameter and the axial length of described motor stator.

10. electric guarantor's formula electric electromagnetic as claimed in claim 9 moves the double-purpose solenoid valve; it is characterized in that described moving iron core and down moving iron core to move son fastening by screw or bolt and nut with described motor respectively; the lower end cylindrical of the upper end cylindrical of described moving iron core and described moving iron core down welds with the top and bottom of described protecting jacket respectively; the lower end cylindrical of the upper end cylindrical of described upward static iron core and described static iron core down welds with the top and bottom of described plunger tube respectively; the bottom of described plunger tube passes and extension downwards from the bottom opening in described plunger tube hole; constitute cylindrical shoulder structure with the described cylindrical of magnet case down; the upper end of described plunger tube and described upper wall inboard of going up magnet case join; described top of going up calutron is provided with the described magnet case of going up is fastened on described fastening with screw assembly or bolt and nut component on the static iron core of going up; be equipped with back-up ring in described screw assembly or the bolt and nut component; the mounting hole hole wall of described valve gap axially raises up; its upper-end surface forms the installing and locating plane, contacts with the described lower surface of the lower wall of magnet case down.