CN105114642A - Ultralow temperature electromagnetic valve and application thereof - Google Patents
Ultralow temperature electromagnetic valve and application thereof Download PDFInfo
- Publication number
- CN105114642A CN105114642A CN201510474277.2A CN201510474277A CN105114642A CN 105114642 A CN105114642 A CN 105114642A CN 201510474277 A CN201510474277 A CN 201510474277A CN 105114642 A CN105114642 A CN 105114642A
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- China
- Prior art keywords
- valve
- ultralow temperature
- valve body
- electromagnetic valve
- passage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
Abstract
The invention discloses an ultralow temperature electromagnetic valve. The ultralow temperature electromagnetic valve comprises a barreled valve body and a valve element, an inlet and an outlet used for allowing ultralow temperature media to enter and exit are formed in the barrel wall of the valve body; the valve element is coaxially arranged in an inner cavity of the valve body and is in clearance fit with a cylinder face, the valve element is sleeved with a spring abutting against the end of the valve body, a groove is formed in the position, located on the peripheral surface of the inner cavity of the valve body, of the valve element, and the barrel wall of the valve body is provided with a first channel and a second channel; an auxiliary valve element assembly capable of controlling off or on of the two channels is arranged between the two channels; and the two channels are off or on through the auxiliary valve element assembly, and the valve element can be controlled to abut against or be separated from a valve opening to achieve off or on of the ultralow temperature media. The ultralow temperature electromagnetic valve is simple in structure, rapid and convenient to assemble and convenient to maintain; replacement and use of multiple product electromagnet assemblies can be achieved; the ultralow temperature electromagnetic valve can be widely applied to industries of electromagnetic valves, electronic control and the like; and the electromagnetic valve is particularly suitable for LNG, liquid nitrogen and other ultralow temperature media.
Description
Technical field
The invention belongs to Solenoid Valve Technology field, more specifically, relate to a kind of ultralow temperature electromagnetic valve and application thereof, be particularly suitable for the control of the ultralow temperature such as LNG, liquid nitrogen medium.
Background technique
Ultralow temperature electromagnetic valve is a kind of solenoid valve used under ultra-low temperature surroundings, is widely used in the control of the medium such as ultralow temperature such as such as LNG, liquid nitrogen etc. under various ultra-low temperature surroundings.
Patent documentation CN204312734U discloses a kind of ultralow temperature electromagnetic valve, it comprises valve head and electromagnetic coil assembly, valve head includes valve body, valve gap, valve body is provided with feeding-passage, tapping channel and be arranged at feeding-passage, valve pocket between tapping channel, in electromagnetic coil, lifting driving is provided with valve rod, described valve rod is extension valve rod, the outer end of this extension valve rod is arranged with valve rod and adds long-neck cover, the lower end of described extension valve rod extend in valve pocket, and this piston valve in-core is provided with the pilot hole being communicated with the upper and lower both ends of the surface of piston valve core, the lower end of described extension valve rod is provided with cone seal head, upper shed place of this cone seal head and pilot hole seals adaptation, this extension valve rod and the downward ejection of piston valve core is simultaneously linked, described valve rod adds long-neck cover and the side cover of electromagnetic coil assembly is provided with water proof dish.
Due to the Environmental Conditions of ultralow temperature, very high to the seal request in solenoid valve, sealing particularly between valve body and spool, adopt conventional sealing in technique scheme between valve body and spool, make its sealing effect poor, and, in order to enhanced leaktightness effect in the program, be provided with and organize air locking more, make on the one hand that whole valve volume is comparatively large, complex structure, the use of multiple sealed member causes that its assembling is complicated on the other hand, sealing reliability and stability reduces greatly.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide a kind of ultralow temperature electromagnetic valve, its valve body structure by optimization and the use of two groups of spools, thus effectively can reduce the sealing position of critical component, sealing reliability is greatly improved, and structure is simple, compact.
For achieving the above object, according to one aspect of the present invention, provide a kind of ultralow temperature electromagnetic valve, for realizing the flow quantity control to ultralow temperature medium, this solenoid valve comprises:
Valve body, it is tube structure, its barrel is respectively arranged with the import and outlet that to enter for ultralow temperature medium and flow out;
Spool, it is coaxially arranged in described body cavity and also forms cylndrical surface Spielpassung with it, it is arranged with the spring abutted with valve end, the mass change that is situated between in valve pocket and the different pressures that produces can make this spring that spool can be driven to make it abut or depart from valve port realizes cutting off or conducting ultralow temperature medium; It is characterized in that,
Described spool offers groove on the outer surface being positioned at body cavity, and it can make the flow flowing into valve pocket from spool and valve body gap increase;
Described valve body barrel offers the first passage communicated with the valve pocket flowed into for ultralow temperature medium in described valve body and the second channel communicated with described outlet, and between described first passage and second channel, be provided with the auxiliary valve core assembly that can control two passages shutoffs or conducting;
By this auxiliary valve core assembly to the shutoff of two passages or conducting, realize the control of rate-of flow in described valve pocket and valve pocket internal pressure is changed, thus described spool can be driven to abut or depart from valve port, realizing cutting off or conducting ultralow temperature medium.
As improvement of the present invention, described valve body barrel is provided with joint, this joint inside is provided with described second channel conducting and can the endoporus of conducting with described first passage, described auxiliary valve core assembly is contained in described endoporus, it sealing block comprising auxiliary valve core and be arranged on auxiliary valve core end, drive described sealing block shutoff by this auxiliary valve core moving axially in endoporus or open first passage, thus first passage and second channel are turned off or conducting.
As improvement of the present invention, one end that described auxiliary valve core contacts with first passage is multidiameter shaft, thus cavity is formed in endoporus, wherein said sealing block is arranged on the end face of the less part of the wherein diameter of axle, with for sealably contacting with first passage mouth, diameter major part coordinates with endoporus wall, and described second channel communicates with this cavity.
As improvement of the present invention, the step surface of described multidiameter shaft is provided with elastic seal ring, it is fixed by circlip and pad.
As improvement of the present invention, described joint end is provided with adpting flange, it is for being fixedly connected with electromagnet assembly, described auxiliary valve core is connected with this electromagnet assembly, and described auxiliary valve core axially reciprocating in joint endoporus can be driven under electromagnet assembly effect, realize to the conducting of first passage with close.
As improvement of the present invention, be provided with multiple thermal insulating pad between described electromagnet assembly and auxiliary valve core and carry out heat insulation.
As improvement of the present invention, the groove on described spool is many, preferably offers vertically at spool outer surface.
According to another aspect of the present invention, provide the application of a kind of above-mentioned ultralow temperature electromagnetic valve in ultralow temperature medium flow quantity control.
According to another aspect of the invention, provide a kind of ultralow temperature medium circulation control gear with above-mentioned ultralow temperature electromagnetic valve.
In general, the above technological scheme conceived by the present invention compared with prior art, has following beneficial effect:
(1) spool adopts and offers this special construction of groove, can abandon the Sealing between mangetic core assembly and valve body, and making needs the position of sealing to become circulation passage originally, reduces sealing position, reduces sealing difficulty;
(2) body wall starts two independently runners, and by arranging solenoid valve dress in body wall, control the break-make of two runners, thus play leading role because realizing controlling the keying of spool;
(3) the solenoid valve volume in the present invention is little, lightweight, structure simple, can reduce the sealing position of critical component, reduces sealing difficulty, improves stability and the reliability of sealing, is particularly useful for the control of the ultralow temperature such as LNG, liquid nitrogen medium.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of ultralow temperature electromagnetic valve that the embodiment of the present invention provides;
Fig. 2 is the auxiliary valve core assembly schematic diagram in the solenoid valve shown in Fig. 1;
In all of the figs, identical reference character is used for representing identical element or structure, wherein: flange plate 13, vertical holes 14, inclined hole 15, square hole 21, sealing block 61, circlip 62, pad 63, elastic seal ring 64, the auxiliary valve core 65 of valve body 1, mangetic core assembly 2, big spring 3, sealing gasket 4, valve gap 5, auxiliary valve core assembly 6, little thermal insulating pad 7, large thermal insulating pad 8, electromagnet assembly 9, suction flange dish 11, outlet(discharge) flange dish 12, connection electromagnet assembly 9.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each mode of execution of the present invention involved technical characteristics do not form conflict each other and just can mutually combine.
Fig. 1 shows the structure of the ultralow temperature electromagnetic valve that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
See Fig. 1, the ultralow temperature electromagnetic valve that the embodiment of the present invention provides comprises valve body 1, mangetic core assembly 2, big spring 3, sealing gasket 4, valve gap 5, auxiliary valve core assembly 6, little thermal insulating pad 7, large thermal insulating pad 8, electromagnet assembly 9.
See Fig. 1, valve body 1 is provided with suction flange dish 11, outlet(discharge) flange dish 12, the flange plate 13 connecting electromagnet assembly 9, vertical holes 14 and inclined hole 15.Mangetic core assembly 2 and valve body 1 are cylndrical surface Spielpassung, and mangetic core assembly 2 is provided with mounted elastically hole, and the square hole 21 of medium circulation.Medium is come in from suction flange dish 11, flow in the cavity of valve body 1, mangetic core assembly 2 and valve gap 5 composition from mangetic core assembly 2 upper aperture 21, when vertical holes 14 and inclined hole 15 block, in cavity, pressure medium makes mangetic core assembly 2 close sealing, when vertical holes 14 is communicated with inclined hole 15, chamber in-vivo medium is flowed out from outlet(discharge) flange dish 12 rapidly by vertical holes 14 and inclined hole 15, and in cavity, pressure medium declines rapidly close to null value, and mangetic core assembly 2 times end pressures overcome spring 4 elastic force makes mangetic core assembly 2 open.
Because valve body 1 and mangetic core assembly 2 are Spielpassung, and mangetic core assembly 2 both sides are provided with square hole 21, for MEDIA FLOW circulation passage, therefore seal ring can not be used herein, this reduces sealing difficulty, simultaneously without Sealing, frictional force between mangetic core assembly 2 and valve body 1 is reduced, more be conducive to the opening and closing of mangetic core assembly 2, mangetic core assembly 2 response time reduces.
Valve gap 5 press seal pad 4 is assemblied in the upper end of valve body 1 to seal valve body upper end.
See Fig. 1, another sidewall of the relative import of valve body 1 offers the joint with endoporus, this joint outer end is provided with flange plate 13, for connection electromagnet assembly 9.
Auxiliary valve core assembly 6 is assemblied in the endoporus of this joint, and and then is connected with electromagnet assembly 9.
See Fig. 2, auxiliary valve core assembly 6 is by sealing block 61, circlip 62, pad 63, elastic seal ring 64 and the externally threaded auxiliary valve core 65 of an end band form, the upper sealing block 61 of auxiliary valve core assembly 6 opens being communicated with of vertical holes 14 and inclined hole 15 for Trimmed sums, circlip 62 and pad 63 are for fixing elastic seal ring 64, elastic seal ring 64 has extraordinary ultralow temperature sealability, therefore low temperature leak problem can effectively be controlled, auxiliary valve core 65 outside thread is connected with electromagnet assembly 9, centre is equipped with little thermal insulating pad 7, play heat-blocking action, slow down ultra low temperature to be transmitted to electromagnet assembly 9 by auxiliary valve core assembly 6.
See Fig. 1, electromagnet assembly 9 connects for the flange plate 13 being connected electromagnet assembly 9 with on valve body 1, centre is equipped with large thermal insulating pad 8, play heat-blocking action, slow down ultra low temperature to be transmitted to electromagnet assembly 9 by valve body 1, actual application finds that effect of heat insulation is better, and electromagnet assembly temperature is in operating range, can guaranteeing the normal use of electromagnet assembly.
Ultralow temperature electromagnetic valve of the present invention, small in volume, its special structural type can abandon the Sealing between mangetic core assembly and valve body, make originally to need the position of sealing to become circulation passage, reduce sealing position, reduce sealing difficulty, there is practical engineering application advantage, be particularly suitable for the solenoid valve of the ultralow temperature such as LNG, liquid nitrogen medium.
The installation process of ultralow temperature electromagnetic valve of the present invention is as follows:
(1) check, clean all parts;
(2) mangetic core assembly 2 is loaded the endoporus of valve body 1, big spring is loaded the endoporus of mangetic core assembly 2, sealing gasket 4 is placed on the upper-end surface of valve body 1, valve gap 5 is placed on above sealing gasket 4, with six screws by valve gap 5 and valve body 1 fastening;
(3) auxiliary valve core assembly 6 is loaded the endoporus of the flange plate 13 valve body 1 being used for connecting electromagnet assembly 9, little heat insulation 7 pads are loaded auxiliary valve core assembly 6 and connects on the outside thread of auxiliary valve core 65 of electromagnet assembly 9; Large thermal insulating pad 8 is placed on the flange plate 13 valve body 1 being used for connecting electromagnet assembly 9;
(4) electromagnet assembly 9 is screwed on the outside thread of auxiliary valve core assembly 6, uses six screw fastening electromagnet assemblies 9 and valve body 1 simultaneously, assemble complete.
In the present invention, valve body is provided with two band circular grooves for connecting the flange plate of exterior line, and preferred levels direction is import, and vertical direction is outlet; Be not with annular slot flange dish side to have one runner from valve body top to valve body lower portion and be preferably vertical holes, communicate with this flange plate endoporus, flange plate endoporus has one runner and is preferably inclined hole, it exports with valve body lower end and communicates, auxiliary valve core assembly loads the break-make that this flange plate endoporus controls vertical holes and inclined hole, plays leading role.
In the present invention, described mangetic core assembly both sides are provided with many grooves, preferably two square holes, it is preferably arranged vertically, mangetic core assembly and valve body are Spielpassung, ultralow temperature medium enters valve inner from import, and square hole makes the flow flowing into mangetic core assembly and valve body epicoele from gap increase, and therefore mangetic core assembly and valve body do not need Sealing;
In the present invention, mangetic core assembly axial direction arranges a deep hole, for installing big spring;
In the present invention, one end axial direction of described auxiliary valve core assembly is equipped with sealing block, and circumferencial direction is equipped with elastic seal ring; The other end is provided with outside thread, is connected with electromagnet assembly by little thermal insulating pad;
In the present invention, electromagnet assembly is preferably conventional electromagnets, and comprise armature, housing, coil, spring etc., electromagnet assembly is connected heat insulation with valve body by large thermal insulating pad.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a ultralow temperature electromagnetic valve, for realizing the flow quantity control to ultralow temperature medium, this solenoid valve comprises:
Valve body, it is tube structure, its barrel is respectively arranged with the import and outlet that to enter for ultralow temperature medium and flow out;
Spool, it is coaxially arranged in described body cavity and also forms cylndrical surface Spielpassung with it, it is arranged with the spring abutted with valve end, the mass change that is situated between in valve pocket and the different pressures that produces can make this spring that spool can be driven to make it abut or depart from valve port realizes cutting off or conducting ultralow temperature medium; It is characterized in that,
Described spool offers groove on the outer surface being positioned at body cavity, and it can make the flow flowing into valve pocket from spool and valve body gap increase;
Described valve body barrel offers the first passage communicated with the valve pocket flowed into for ultralow temperature medium in described valve body and the second channel communicated with described outlet, and between described first passage and second channel, be provided with the auxiliary valve core assembly that can control two passages shutoffs or conducting;
By this auxiliary valve core assembly to the shutoff of two passages or conducting, realize the control of rate-of flow in described valve pocket and valve pocket internal pressure is changed, thus described spool can be driven to abut or depart from valve port, realizing cutting off or conducting ultralow temperature medium.
2. a kind of ultralow temperature electromagnetic valve according to claim 1, wherein, described valve body barrel is provided with joint, this joint inside is provided with described second channel conducting and can the endoporus of conducting with described first passage, described auxiliary valve core assembly is contained in described endoporus, it sealing block comprising auxiliary valve core and be arranged on auxiliary valve core end, drive described sealing block shutoff by this auxiliary valve core moving axially in endoporus or open first passage, thus first passage and second channel are turned off or conducting.
3. a kind of ultralow temperature electromagnetic valve according to claim 2, wherein, one end that described auxiliary valve core contacts with first passage is multidiameter shaft, thus cavity is formed in endoporus, wherein said sealing block is arranged on the end face of the less part of the wherein diameter of axle, with for sealably contacting with first passage mouth, diameter major part coordinates with endoporus wall, and described second channel communicates with this cavity.
4. a kind of ultralow temperature electromagnetic valve according to claim 3, wherein, the step surface of described multidiameter shaft is provided with elastic seal ring, it is fixed by circlip and pad.
5. a kind of ultralow temperature electromagnetic valve according to any one of claim 2-4, wherein, described joint end is provided with adpting flange, it is for being fixedly connected with electromagnet assembly, described auxiliary valve core is connected with this electromagnet assembly, and described auxiliary valve core axially reciprocating in joint endoporus can be driven under electromagnet assembly effect, realize to the conducting of first passage with close.
6. a kind of ultralow temperature electromagnetic valve according to claim 5, wherein, is provided with multiple thermal insulating pad and carries out heat insulation between described electromagnet assembly and auxiliary valve core.
7. a kind of ultralow temperature electromagnetic valve according to any one of claim 1-6, wherein, the groove on described spool is many, preferably offers vertically at spool outer surface.
8. the application of the ultralow temperature electromagnetic valve according to any one of a claim 1-7 in ultralow temperature medium flow quantity control.
9. one kind has the ultralow temperature medium circulation control gear of the ultralow temperature electromagnetic valve according to any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474277.2A CN105114642B (en) | 2015-08-05 | 2015-08-05 | A kind of ultralow temperature electromagnetic valve and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474277.2A CN105114642B (en) | 2015-08-05 | 2015-08-05 | A kind of ultralow temperature electromagnetic valve and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114642A true CN105114642A (en) | 2015-12-02 |
| CN105114642B CN105114642B (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510474277.2A Active CN105114642B (en) | 2015-08-05 | 2015-08-05 | A kind of ultralow temperature electromagnetic valve and its application |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339535A (en) * | 2017-08-23 | 2017-11-10 | 深圳市盛泽森科技有限公司 | A kind of liquid level sensor of integrated magnet valves |
| CN108999983A (en) * | 2018-08-03 | 2018-12-14 | 海杰亚（北京）医疗器械有限公司 | A kind of flow control valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201792U (en) * | 1985-04-29 | 1986-08-27 | 浙江瑞安永久机电研究所 | Multifunction electromagnetic valve |
| US4848397A (en) * | 1988-06-20 | 1989-07-18 | Keystone International, Inc. | High temperature safety relief system |
| CN2191323Y (en) * | 1994-05-21 | 1995-03-08 | 王玉兰 | Electromagnetic valve for fire control |
| CN2408335Y (en) * | 1999-12-29 | 2000-11-29 | 北京市建筑五金科研实验厂 | Sealing device for valve rod |
| CN204141016U (en) * | 2014-10-20 | 2015-02-04 | 无锡市华科力士水液压有限公司 | With the pressure pressure guiding type water electromagnetic switch valve that guide filters |
-
2015
- 2015-08-05 CN CN201510474277.2A patent/CN105114642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201792U (en) * | 1985-04-29 | 1986-08-27 | 浙江瑞安永久机电研究所 | Multifunction electromagnetic valve |
| US4848397A (en) * | 1988-06-20 | 1989-07-18 | Keystone International, Inc. | High temperature safety relief system |
| CN2191323Y (en) * | 1994-05-21 | 1995-03-08 | 王玉兰 | Electromagnetic valve for fire control |
| CN2408335Y (en) * | 1999-12-29 | 2000-11-29 | 北京市建筑五金科研实验厂 | Sealing device for valve rod |
| CN204141016U (en) * | 2014-10-20 | 2015-02-04 | 无锡市华科力士水液压有限公司 | With the pressure pressure guiding type water electromagnetic switch valve that guide filters |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339535A (en) * | 2017-08-23 | 2017-11-10 | 深圳市盛泽森科技有限公司 | A kind of liquid level sensor of integrated magnet valves |
| CN108999983A (en) * | 2018-08-03 | 2018-12-14 | 海杰亚（北京）医疗器械有限公司 | A kind of flow control valve |
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| CN105114642B (en) | 2019-05-14 |
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