CN103047469B - High-temperature solenoid valve and high-temperature thruster using same - Google Patents
High-temperature solenoid valve and high-temperature thruster using same Download PDFInfo
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- CN103047469B CN103047469B CN201210526878.XA CN201210526878A CN103047469B CN 103047469 B CN103047469 B CN 103047469B CN 201210526878 A CN201210526878 A CN 201210526878A CN 103047469 B CN103047469 B CN 103047469B
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Abstract
The invention discloses a high-temperature solenoid valve and a high-temperature thruster using the same. A thermal insulation pipe is sleeved on the periphery of the part of a valve rod of the high-temperature solenoid valve extending from the lower portion of a solenoid valve casing, during usage, media can diffuse a large amount of heat when passing through inlets and outlets on a valve seat, while heat generated by high-temperature gas needs to be transmitted to an electromagnetism through the thermal insulation pipe and the valve base in a transmission, convection and radiation mode, and the thermal insulation pipe fixed between the electromagnetism and the valve base and the valve rod penetrating through the thermal insulation pipe are made of thermal insulation materials, so that the thermal bridge effect can be achieved, heat exchanging between the valve base and the electromagnetism is reduced, heat diffused to the electromagnetism from the valve base is reduced, temperature of an electromagnetic coil is reduced during usage, the possibility of fusion of an insulation skin of the electromagnetic coil during usage is reduced, and the reliability of the solenoid valve used in the high-temperature environment is improved.
Description
Technical field
The present invention relates to Solenoid Valve Technology field, relate in particular to a kind of high-temperature solenoid valve, also relate to the high temperature thruster that uses this high-temperature solenoid valve simultaneously.
Background technique
Astrovehicle thruster is as the important component part of astrovehicle operation, and according to the fuel difference of astrovehicle, requiring of the control unit to thruster is different.At present conventional solenoid valve is controlled the work of high temperature thruster, thereby reaches the effect of adjusting constantly high temperature thruster thrust size.But adopt electromagnet is directly fixed on valve seat because existing solenoid valve is general, the disclosed a kind of direct action solenoid valve of Chinese invention patent that for example application number is 98217832.8, on valve seat in such solenoid valve, offer be communicated with into, the throttle orifice of outlet, on throttle orifice, be provided with the flap for shutoff throttle orifice, flap is connected on the valve rod of electromagnet, therefore in the time that high temperature media passes through valve seat, the heat that high temperature media distributes can be delivered on electromagnetic coil by the valve rod of electromagnet and armature, and then the temperature of electromagnetic coil is constantly raise, until the insulation sheath of electromagnetic coil is melted, electromagnetic coil short circuit, burn out, thereby solenoid valve is scrapped, high temperature thruster cisco unity malfunction.
Summary of the invention
The object of this invention is to provide the good High-temperature electromagnet that dispels the heat between a kind of valve seat and electromagnet, the high temperature thruster that uses this High-temperature electromagnet is also provided simultaneously, be intended to solve the problem that in prior art, the electromagnetic coil of electromagnet easily burns out.
In order to realize above object, the technical solution adopted in the present invention is:
The technological scheme of high-temperature solenoid valve of the present invention is as follows:
A kind of high-temperature solenoid valve, comprise electromagnet fixing on valve seat and valve seat, in described valve seat, be equiped with for control into, the flap of outlet break-make, described electromagnet has the armature for driving flap to move up and down in valve seat, be fixed on the housing on valve seat, on described armature, be fixed with flap is in transmission connection and make valve rod by thermal-protective material, valve rod extends along the vertical direction, stretch out from the below of described housing the lower end of valve rod, and between electromagnet and valve seat, in the periphery of extension, be arranged with the heat insulating tube of being made by thermal-protective material, the upper end of described heat insulating tube is fixed on the lower position of housing upper armature, the lower end of heat insulating tube is fixed on valve seat.
Described housing comprises and is set in inner housing cylindraceous around of armature and is set in the frame in inner housing periphery, stretch out from the below of frame the lower end of described inner housing, and described heat insulating tube connects on the inwall of inner housing extension by the annular joint coaxial threaded being convexly equipped with in its upper end periphery.
Described flap is installed in the throttle orifice of the column in upper end open lower end closed of offering on valve seat, on at the bottom of the lower stomidium of throttle orifice, offer outlet, on perisporium, offer import, the lower end surface of flap be for shutoff in the time falling outlet, on make to import and export the sealing surface being communicated with by throttle orifice while moving.
The lower end of described valve rod offers super hemispheric locating slot, the upper end of described flap is stretched in locating slot, and stretch into part and be provided with at above-below direction and the location bulb that the downside notch edge block of locating slot coordinates, between described location bulb and the cell wall of locating slot, have for rotating in locating slot so that the free gap that flap swings in throttle orifice for location bulb; In throttle orifice, be equiped with and be set in flap lower end setting sleeve around, the lower end outer circumferential face Spielpassung of the internal face of setting sleeve and flap, and on setting sleeve, offer the opening being communicated with import.
The technological scheme of high temperature thruster of the present invention is as follows:
A kind of high temperature thruster, comprise for being installed in thrust chamber, to control the high-temperature solenoid valve of media discharge in thrust chamber, described high-temperature solenoid valve comprises electromagnet fixing on valve seat and valve seat, in described valve seat, be equiped with for control into, the flap of outlet break-make, described electromagnet has the armature for driving flap to move up and down in valve seat, be fixed on the housing on valve seat, on described armature, be fixed with flap is in transmission connection and make valve rod by thermal-protective material, valve rod extends along the vertical direction, stretch out from the below of described housing the lower end of valve rod, and between electromagnet and valve seat, in the periphery of extension, be arranged with the heat insulating tube of being made by thermal-protective material, the upper end of described heat insulating tube is fixed on the lower position of housing upper armature, the lower end of heat insulating tube is fixed on valve seat, valve seat is fixedly connected with by heat insulating tube with the housing of electromagnet.
Described housing comprises and is set in inner housing cylindraceous around of armature and is set in the frame in inner housing periphery, stretch out from the below of frame the lower end of described inner housing, and described heat insulating tube connects on the inwall of inner housing extension by the annular joint coaxial threaded being convexly equipped with in its upper end periphery.
Described flap is installed in the throttle orifice of the column in upper end open lower end closed of offering on valve seat, on at the bottom of the lower stomidium of throttle orifice, offer outlet, on perisporium, offer import, the lower end surface of flap be for shutoff in the time falling outlet, on make to import and export the sealing surface being communicated with by throttle orifice while moving.
The lower end of described valve rod offers super hemispheric locating slot, the upper end of described flap is stretched in locating slot, and stretch into part and be provided with at above-below direction and the location bulb that the downside notch edge block of locating slot coordinates, between described location bulb and the cell wall of locating slot, have for rotating in locating slot so that the free gap that flap swings in throttle orifice for location bulb; In throttle orifice, be equiped with and be set in flap lower end setting sleeve around, the lower end outer circumferential face Spielpassung of the internal face of setting sleeve and flap, and on setting sleeve, offer the opening being communicated with import.
In the import of valve seat, be communicated with inlet connector tube, in the endoporus of described mouthpiece joint, be equiped with the filter core for filter medium impurity.
The outlet of valve seat is up-small and down-big trumpet-shaped opening.
High-temperature solenoid valve of the present invention is arranged with heat insulating tube in the periphery of the part of stretching out below solenoid valve housing of valve rod, and the two ends of heat insulating tube are separately fixed on electromagnet and valve seat, on valve seat, offer into, outlet, in use, what medium was offered on by valve seat enters, although can distribute a lot of heats when outlet, but due to high-temperature gas produces in the time flowing through valve body need to be via heat insulating tube and valve rod, and by conduction, the mode of convection current and radiation is to electromagnet transferring heat, and be fixed on the heat insulating tube between electromagnet and valve seat and the valve rod that is located in heat insulating tube is made by thermal-protective material, can play heat bridge structure, reduce the exchange heat between valve seat and electromagnet, thereby reduce from valve seat and be distributed to the heat on electromagnet, reduce the in use temperature of electromagnetic coil, and then reduce the in use possibility of the insulation sheath melting of electromagnetic coil, improve the reliability that solenoid valve uses in hot environment.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the structural representation of filter core in Fig. 1.
Embodiment
The embodiment of antitheft high temperature thruster of the present invention, as shown in Figure 1, Figure 2 and Figure 3, this high temperature thruster comprises the high-temperature solenoid valve being installed on thrust chamber air outlet, and this high-temperature solenoid valve is made up of electromagnet 1, heat insulating tube 2, flap 3, setting sleeve 24 and valve seat 4.On valve seat 4, offer the throttle orifice 4-1 of the column of upper end open lower end closed, on at the bottom of the lower stomidium of throttle orifice 4-1, offer up-small and down-big trumpet-shaped outlet 4-2, on the upper end perisporium of throttle orifice 4-1, offer import 4-3, on import 4-3, be communicated with import 4-3 pipe joint 5, in import 4-3 pipe joint 5, be equiped with filter core 6.Electromagnet 1 comprises the inside and outside housing 7,8 of tubular, frame 8 is set in the periphery of inner housing 7, and between is equiped with electromagnetic coil 9, stretch out from the upper end of inner housing 7 upper end of frame 8, in the endoporus of extension, be fixed with the upper only seat 10 of shutoff in frame 8 upper end open, the upper only lower end of seat 10 is stretched in frame 8, and shutoff is in the upper end of inner housing 7, upper stopping in seat 10 is equiped with return spring 12 and the return push rod 13 to initial position for pushing tow armature 11, and return spring 12 tops are pressed in the top of return push rod 13, stretch out from the lower end of frame 8 lower end of inner housing 7, in extension, coaxial threaded is connected with sealing and is fixed on the lower only seat 14 on inner housing 7, lower only seat 14 is by the lower end shutoff of inner housing 7, thereby make, electromagnet 1 inner chamber that lower only seat 14 and inner housing 7 form for armature 11 activities, the lower end of armature 11 offers the tapped hole extending along the vertical direction, armature 11 is connected with from the lower valve rod 15 that only stretch out the lower end of seat 14 by this tapped hole coaxial threaded, the upper end of valve rod 15 is installed with two in armature 11 and the lower only locking nut 16 between seat 14, stretch out from the lower only downside of seat 14 lower end of valve rod 15, and stretch in the throttle orifice 4-1 opening on valve seat 4, valve rod 15 is arranged with in electromagnet 1 and stops the heat insulating tube of being made up of thermal-protective material 2 between seat from the lower only part periphery that the downside of seat 14 stretches out, the upper end of heat insulating tube 2 convexes with and the lower only seat 14 annular joints that are wholely set, and be connected on inner housing 7 by this annular joint coaxial threaded, the lower end of heat insulating tube 2 is fixed on the hole of throttle orifice 4-1 on valve seat 4 along position.
Between the internal face of the outer circumferential face of valve rod 15 and heat insulating tube 2, there is the gap being communicated with the inner chamber of electromagnet 1, and offer the passage of downward-extension in a side of armature 11, offer in the bottom of return push rod 13 opening towards, and the blind hole being communicated with the inner chamber of electromagnet 1, the outer circumferential face of the upper end of return push rod 13 coordinates with the upper only inner wall sealing of seat, in use, pressurized gas can pass through heat insulating tube, the blind hole that passage on inner chamber and the armature of electromagnet enters the bottom of return push rod, by upwards jack-up of return push rod 13, so that return push rod 13 and return spring 12 coordinate the effect of playing pilot valve.
Flap 3 comprises the location bulb 3-2 of columnar body 3-1, the setting of columnar body 3-1 upper end and the seal plug 3-3 that columnar body 3-1 lower end arranges.Location bulb 3-2 is installed in the super hemispheric locating slot 15-1 offering valve rod 15 lower ends, and coordinate at above-below direction block with the notch edge of locating slot 15-1, between the trough wall surface of locating slot 15-1 and the outer circumferential face of location bulb 3-2, have for rotating so that the free gap that flap 3 swings in throttle orifice 4-1 in locating slot 15-1 for location bulb 3-2.The lower end surface shutoff of seal plug 3-3 is exporting on 4-2, and forms plane sealing pair with the bottom surface, hole of throttle orifice 4-1.
Setting sleeve 24 is installed in throttle orifice 4-1, and is set in the periphery of columnar body 3-1 of valve rod 15.The outer circumferential face Spielpassung of the internal face of setting sleeve 24 and seal plug 3-3.
Described filter core 6 is wrapped in cubic hollow casing 26, the filter opening being communicated with its inner chamber on the side, relative both sides of housing 26.
In the present invention, heat insulating tube 2 and valve rod 15 all adopt molybdenum materials in thermal-protective material to process, thereby adapt in normal working conditions, and in thruster, temperature reaches the situation of more than 1600 degree Celsius.
In the present invention, high-order solenoid valve is direct-acting type normal-closed electromagnetic valve, in cold situation, the secondary position of the plane sealing of high-temperature fuel gas between at the bottom of pipe joint 5 middle filtrators reach the seal plug 3-3 of flap 3 in valve seat 4 and the throttle orifice 4-1 hole of valve seat 4, arrive through the space between valve rod 15 and heat insulating tube 2 in the valve pocket of electromagnet 1, the passage of the perforation upper and lower end of offering on armature 11 again arrives in upper only seat 10, but because heat insulating tube 2 is fixed between electromagnet 1 and valve seat 4, form heat bridge structure, thereby making heat insulating tube 2 and valve rod 15 can cut off the heat that high-temperature fuel gas distributes is transferred on electromagnet, thereby stop the heat that high-temperature fuel gas distributes to transmit to electromagnet 1, make the temperature of electromagnet 1 lower than the serviceability temperature of nonmetallic material, ensure can normally work with the lower O RunddichtringO 17 of installing in seat 14 peripheries that stops in upper only seat 10 endoporus, the insulation sheath of electromagnetic coil 9 can melting, and then ensure the reliability that electromagnet 1 is worked under hot environment,
In the time of energising, armature 11 moves up under electromagnetic coil 9 effects, thereby make armature 11 drive flap 3 to move up by valve rod 15, plane sealing sub-quilt between making at the bottom of the seal plug 3-3 of flap 3 and the throttle orifice 4-1 hole of valve seat 4 is destroyed, accumulate in high-temperature fuel gas in the throttle orifice 4-1 of valve seat 4 by the seal plug 3-3 of flap 3 and the throttle orifice 4-1 hole of valve seat 4 at the bottom of between space flow into outlet 4-2, outlet 4-2 on valve seat 4 reaches the outlet 4-2 of thrust chamber again, make high-temperature fuel gas reach outside open space, and under the expansion of high-temperature fuel gas, produce predetermined thrust.
What the present invention made that medium offers on by valve seat enters, although can distribute a lot of heats when outlet, but due to high-temperature gas produces in the time flowing through valve body need to be via heat insulating tube and valve rod, and by conduction, the mode of convection current and radiation is to electromagnet transferring heat, and be fixed on the heat insulating tube between electromagnet and valve seat and the valve rod that is located in heat insulating tube is made by thermal-protective material, gap between the outer circumferential face of valve rod and the outer circumferential face of heat insulating tube is less, can play heat bridge structure, reduce the exchange heat between valve seat and electromagnet, thereby reduce from valve seat and be distributed to the heat on electromagnet, reduce the in use temperature of electromagnetic coil, and then reduce the in use possibility of the insulation sheath melting of electromagnetic coil, improve the reliability that solenoid valve uses in hot environment.The location bulb 3-2 of flap 3, in the locating slot 15-1 of valve rod 15 bottoms, coordinates by the block between location bulb 3-2 and the notch edge of locating slot 15-1, ensures that flap 3 can move up and down with valve rod 15; Free gap between outer circumferential face and the trough wall surface of locating slot 15-1 of location bulb 3-2, ensure in the time that flap 3 moves down, can be by coordinating between location bulb 3-2 and place kick, the lower end surface of guarantee seal plug just in time shutoff is exporting on 4-2, such as in the time there is deflection in seal plug 3-3, parallelism between lower end surface and the bottom surface of throttle orifice 4-1 of Spielpassung guarantee seal plug 3-3 between setting sleeve 24 and seal plug 3-3, makes seal plug 3-3 export on 4-2 in the shutoff accurately of its lower end surface of lower backwardness; Sphere between location bulb 3-2 and locating slot 15-1 coordinates can play above-below direction to heart effect, ensure between at the bottom of the lower end surface of seal plug 3-3 and the hole of throttle orifice 4-1 the secondary reliability sealing of plane sealing and seal leakproofness.
In the above-described embodiments, the internal face Spielpassung of the setting sleeve of installing in the seal plug of flap and throttle orifice, can be sealed in outlet with the lower end surface that ensures seal plug, its principle is, ensure the reliability of capping by the radial play of restriction seal plug, therefore in other embodiments, also can remove this setting sleeve, and the aperture of throttle orifice is reduced, so that the hole wall Spielpassung of the outer circumferential face of seal plug and throttle orifice.
In the above-described embodiments, in the upper end periphery of heat insulating tube, convex with and the lower annular joint that only seat is wholely set, and be connected in inner housing by lower only seat coaxial threaded, in other embodiments, the upper end of heat insulating tube also can be fixed on down the only downside of seat, means of fixation for being threaded, the conventional mode that is fixedly connected with such as bolt connection, welding.
In the above-described embodiments, flap and flap are connected by location bulb and locating slot spherical floating, and in other embodiments, flap the common mode such as also can be threaded connection, welds or be wholely set and be arranged on the lower end of valve rod.
In the above-described embodiments, the sealing pair between at the bottom of the throttle orifice hole of the seal plug of flap and valve seat is plane sealing pair, and in other embodiments, this plane sealing pair also can by ball face sealing pair or conical surface seal is secondary be replaced.
In the above-described embodiments, coordinate by return spring and return push rod the effect of playing pilot valve, the height upwards rising to control armature, in other embodiments, also can, by the pilot valve (electromagnetism push rod, cylinder or oil hydraulic cylinder etc.) of installing, to apply downward active force to armature, control the aperture that armature upwards rises between upper only seat and armature, to reduce the mistakes tolerance in valve seat, reduction the present invention temperature of bearing in high temperature thrust valve of being sorry.
The embodiment of high-temperature solenoid valve of the present invention: as shown in Figure 1 to Figure 3, about the explanation in the above-described embodiments of concrete structure of high-temperature solenoid valve, therefore repeat no more in the present embodiment.
Claims (6)
1. a high-temperature solenoid valve, comprise electromagnet fixing on valve seat and valve seat, in described valve seat, be equiped with for control into, the flap of outlet break-make, described enter, outlet is opened on valve seat, described electromagnet has the armature for driving flap to move up and down in valve seat, be fixed on the housing on valve seat, it is characterized in that, on described armature, be fixed with the valve rod of being made by thermal-protective material being in transmission connection with flap, valve rod extends along the vertical direction, stretch out from the below of described housing the lower end of valve rod, and between electromagnet and valve seat, in the periphery of extension, be arranged with the heat insulating tube of being made by thermal-protective material, the upper end of described heat insulating tube is fixed on the lower position of housing upper armature, the lower end of heat insulating tube is fixed on valve seat, described flap is installed in the throttle orifice of the column in upper end open lower end closed of offering on valve seat, on at the bottom of the lower stomidium of throttle orifice, offer outlet, on perisporium, offer import, the lower end surface of flap be for shutoff in the time falling outlet, on make to import and export the sealing surface being communicated with by throttle orifice while moving, the lower end of described valve rod offers super hemispheric locating slot, the upper end of described flap is stretched in locating slot, and stretch into part and be provided with at above-below direction and the location bulb that the downside notch edge block of locating slot coordinates, between described location bulb and the cell wall of locating slot, have for rotating in locating slot so that the free gap that flap swings in throttle orifice for location bulb, in throttle orifice, be equiped with and be set in flap lower end setting sleeve around, the lower end outer circumferential face Spielpassung of the internal face of setting sleeve and flap, and on setting sleeve, offer the opening being communicated with import.
2. high-temperature solenoid valve according to claim 1, it is characterized in that, described housing comprises and is set in inner housing cylindraceous around of armature and is set in the frame in inner housing periphery, stretch out from the below of frame the lower end of described inner housing, and described heat insulating tube connects on the inwall of inner housing extension by the annular joint coaxial threaded being convexly equipped with in its upper end periphery.
3. a high temperature thruster, comprise for being installed in thrust chamber, to control the high-temperature solenoid valve of media discharge in thrust chamber, described high-temperature solenoid valve comprises electromagnet fixing on valve seat and valve seat, in described valve seat, be equiped with for control into, the flap of outlet break-make, described enter, outlet is opened on valve seat, described electromagnet has the armature for driving flap to move up and down in valve seat, be fixed on the housing on valve seat, it is characterized in that, on described armature, be fixed with flap is in transmission connection and make valve rod by thermal-protective material, valve rod extends along the vertical direction, stretch out from the below of described housing the lower end of valve rod, and between electromagnet and valve seat, in the periphery of extension, be arranged with the heat insulating tube of being made by thermal-protective material, the upper end of described heat insulating tube is fixed on the lower position of housing upper armature, the lower end of heat insulating tube is fixed on valve seat, valve seat is fixedly connected with by heat insulating tube with the housing of electromagnet, described flap is installed in the throttle orifice of the column in upper end open lower end closed of offering on valve seat, on at the bottom of the lower stomidium of throttle orifice, offer outlet, on perisporium, offer import, the lower end surface of flap be for shutoff in the time falling outlet, on make to import and export the sealing surface being communicated with by throttle orifice while moving, the lower end of described valve rod offers super hemispheric locating slot, the upper end of described flap is stretched in locating slot, and stretch into part and be provided with at above-below direction and the location bulb that the downside notch edge block of locating slot coordinates, between described location bulb and the cell wall of locating slot, have for rotating in locating slot so that the free gap that flap swings in throttle orifice for location bulb, in throttle orifice, be equiped with and be set in flap lower end setting sleeve around, the lower end outer circumferential face Spielpassung of the internal face of setting sleeve and flap, and on setting sleeve, offer the opening being communicated with import.
4. high temperature thruster according to claim 3, it is characterized in that, described housing comprises and is set in inner housing cylindraceous around of armature and is set in the frame in inner housing periphery, stretch out from the below of frame the lower end of described inner housing, and described heat insulating tube connects on the inwall of inner housing extension by the annular joint coaxial threaded being convexly equipped with in its upper end periphery.
5. according to the high temperature thruster described in claim 3 or 4, it is characterized in that, in the import of valve seat, be communicated with inlet connector tube, in the endoporus of described inlet connector tube, be equiped with the filter core for filter medium impurity.
6. according to the high temperature thruster described in claim 3 or 4, it is characterized in that, the outlet of valve seat is up-small and down-big trumpet-shaped opening.
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| CN201210526878.XA CN103047469B (en) | 2012-12-10 | 2012-12-10 | High-temperature solenoid valve and high-temperature thruster using same |
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| CN201210526878.XA CN103047469B (en) | 2012-12-10 | 2012-12-10 | High-temperature solenoid valve and high-temperature thruster using same |
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| CN103047469A CN103047469A (en) | 2013-04-17 |
| CN103047469B true CN103047469B (en) | 2014-12-03 |
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| CN103395368B (en) * | 2013-08-05 | 2016-08-10 | 上海蓝恩控制***有限公司 | A kind of guide pipe bindiny mechanism |
| CN104441687A (en) * | 2014-09-17 | 2015-03-25 | 重庆海电风能集团有限公司 | RTM manufacture process of wind power cabin cover |
| CN104405533B (en) * | 2014-10-28 | 2016-03-23 | 上海空间推进研究所 | A kind of sealing configuration of small-sized liquid rocket attitude control engine |
| CN104807516B (en) * | 2015-03-03 | 2018-09-28 | 中国寰球工程公司 | A kind of restriction orifice crossover flange measured for cryogenic media procedure parameter |
| CN110671535B (en) * | 2019-10-18 | 2021-02-05 | 重庆开拓卫星科技有限公司 | High-temperature-resistant electromagnetic valve |
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| US5623960A (en) * | 1992-12-18 | 1997-04-29 | Teisan Kabushiki Kaisha | Solenoid-operated valve for thermally insulated piping and attachment construction therefor |
| EP0939259A2 (en) * | 1998-02-27 | 1999-09-01 | Hydraulik-Ring GmbH | Electromagnetic valve |
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| CN103047469A (en) | 2013-04-17 |
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