CN104329497A - Electromagnetic pressure relief valve - Google Patents
Electromagnetic pressure relief valve Download PDFInfo
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- CN104329497A CN104329497A CN201410437592.3A CN201410437592A CN104329497A CN 104329497 A CN104329497 A CN 104329497A CN 201410437592 A CN201410437592 A CN 201410437592A CN 104329497 A CN104329497 A CN 104329497A
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an electromagnetic pressure relief valve, which comprises a valve body, a valve seat, a valve flap, a valve flap connecting rod, a valve cover, an adjusting nut, a compression spring, a coil, a stationary iron core, a movable iron core, an insulation sleeve cylinder, a coil outer casing, a pressure sensor, a lead wire, a sealing ring and a tightening bolt, wherein the valve body consists of a valve chamber, a flowing medium inlet pipeline and a flowing medium outlet passage, the valve chamber, the valve cover and the coil outer casing are sequentially and fixedly connected through the bolt, the pressure sensor is welded on the inlet pipeline of the valve body, and is connected with the lead wire of the coil, and the insulation outer casing surrounds the exterior of the lead wire. The electromagnetic pressure relief valve has the advantages that the change amount of the inlet pressure is changed into the displacement amount by a corrugated pipe, the energizing and deenergizing of the coil are controlled, and finally the opening and closing of the valve are controlled by pressure; the maximum pressure in the vacuum chamber is limited, certain defects of the electromagnetic valve are overcome, the additional control loops are not needed, the valve is an automatic valve with quick action, and the electromagnetic pressure relief valve is a new pressure relief protection device.
Description
Technical field
The present invention relates to valve field, specifically a kind of electromagnetic relief valve.
Background technique
Vacuum chamber as one of the critical component of Tokamak nuclear fusion device, for high-temperature plasma provides high vacuum running environment.The first wall assembly of internal vacuum chamber is subject to a large amount of heat loads from fusion reaction, temperature can sharply raise, need to carry out temperature control to it, thus on vacuum-chamber wall for first wall arrangement of components a large amount of cooling lines.Once the first wall assembly cooling line in somewhere occurs damaged, freezing mixture (water) can bleed in vacuum chamber.After internal vacuum chamber freezing mixture accident occurs, because vacuum chamber is high vacuum environment, freezing mixture can produce a large amount of steam, and vacuum chamber pressure raises rapidly.Except refrigerant leaks accident, the air vacuum chamber that bleeds also can cause internal vacuum chamber supercharging, if do not carry out pressure restriction to vacuum chamber, its internal pressurization can cause damage to vacuum chamber and internal component thereof.Therefore, need for vacuum-chamber design overpressure protection system, after vacuum chamber pressure reaches the limit values (setting value), internal vacuum chamber medium of releasing in time, reduces its internal pressure, protection vacuum chamber and internal component thereof.
Critical component in vacuum chamber overpressure protection system is Decompression valves, and it is the device directly controlling internal vacuum chamber pressure maximum, and side is directly communicated with vacuum chamber, and opposite side connects relief tube.For boiler, pressurized container and pipeline etc., normal use safety valve controls its pressure maximum, and when interior media pressure exceedes specified value, safety valve is opened, to discharge medium outside system, protection personal safety and equipment run.Common safety valve has weight arm formula safety valve, Direct spring loaded safety valve and pulse type safety valve three class, and solenoid valve also can meet the requirement of pressure release, proterctive equipment simultaneously.The working principle of solenoid valve is: when energized, and electromagnetic coil produces electromagnetic force and closure member is mentioned from valve seat, valve open; During power-off, electromagnetic force disappears, and spring handle closure member is pressed on valve seat, valve closing.But solenoid valve needs to be equipped with corresponding circuit to realize the control expected, control system is more complicated, and the impact in the reaction time of valve controlled loop.Another kind of common decompression protection device is rupture disk, and rupture disk structure is simple, good seal performance, and after equipment pressure exceedes limit value, rupture disk is opened (breaking), outside discharge medium step-down.A shortcoming of rupture disk is exactly its not reproducible utilization, is " disposable products ", the rupture disk that equipment generation super high pressure accident or need after reaching life time more renews.
As can be seen here, solenoid valve is as the control system more complicated needed for Decompression valves, and rupture disk also exists the shortcoming of not reproducible utilization simultaneously.Based on the needs of vacuum chamber overpressure protection; the working principle of reference solenoid valve and pressure vessel relief valve simultaneously; design a kind of novel electromagnetic relief valve (belonging to automatic valve), in Tokamak nuclear fusion device, the design of vacuum chamber overpressure protection system provides technical foundation.
summary of the inventionthe object of this invention is to provide a kind of electromagnetic relief valve; utilize bellows that the variable quantity of pressure is converted to its displacement amount; and then the on/off electricity of control coil; opening/closing by pressure control valve of final realization; internal vacuum chamber pressure maximum is limited; compensate for some defects of solenoid valve, for tokamak device vacuum chamber overpressure protector provides a kind of new design proposal.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of electromagnetic relief valve, comprise valve body, described valve body is by valve chamber, be communicated with the inlet pipeline in valve chamber side, be communicated with and form at the outlet conduit of valve chamber opposite side, valve chamber top is provided with valve port and valve port outer wall is provided with adpting flange, be welded with in valve chamber and valve chamber is divided into upper and lower two-part valve seat, have in valve seat in connection, the valve opening of bottom valve chamber, described inlet pipeline is communicated with bottom valve chamber in valve chamber side, outlet conduit is communicated with top valve chamber at valve chamber opposite side, it is characterized in that: described valve port place covers and is provided with valve gap, bonnet central is provided with through hole, valve gap bottom centre is provided with the flanged structure stretched in valve chamber, bonnet central through hole extends to through flanged structure, described flanged structure outer wall forms outside thread, and flanged structure is screwed with adjusting nut, described valve seat top is provided with the flap covering valve opening, flap top is vertically connected with flap connecting rod, flap connecting rod top is from flanged structure, bonnet central through hole passes above valve gap, and flap connecting rod and valve gap, flanged structure central through bore relative sliding coordinates, on the shaft that described flap connecting rod is positioned at valve chamber, cover has Compress Spring, Compress Spring top is fixed on adjusting nut, Compress Spring bottom is fixed on flap,
Described valve gap top is provided with coil case, insulating coating, and insulating coating is arranged on neutral position in coil case, the coil be enclosed within outside insulating coating is provided with between coil case and insulating coating, described flap connecting rod top passes valve gap and stretches in insulating coating, and the flap connecting rod top in insulating coating is fixed with dynamic iron core, described coil case inner top center is fixed with to be stretched in insulating coating and the static iron core kept at a certain distance away with dynamic iron core;
Described inlet channel top has round tube hole, the inlet channel tip position at round tube hole place is provided with pressure pick-up along round tube hole central axis, described pressure pick-up comprises the urceolus being welded on inlet channel top, in urceolus, bottom is vertically provided with the bellows that bottom is welded on inlet channel top, and bellows and round tube hole concentrically axis, urceolus internal upper part vertically slides and is provided with insulated column, described insulated column bottom is fixed on bellows top, and insulated column and bellows, round tube hole is axis concentrically, described urceolus top center is provided with through hole, and insulated column top is stretched in the through hole of urceolus top, on insulated column shaft, cover has Returnning spring, Returnning spring top is fixed on urceolus top, described insulated column Basolateral forms land, Returnning spring bottom is fixed in insulated column Basolateral land, through hole is had in the barrel of described urceolus top, outside urceolus, corresponding lead to the hole site is provided with charging air inlet,
Described urceolus top is vertically fixed with cylindrical top cap, be provided with the first insulating sleeve in top cover and be enclosed within the second insulating sleeve outside the first insulating sleeve, wherein the first insulating sleeve bottom is stretched in the through hole of urceolus top, in first insulating sleeve, bottom is vertically slidably fitted with conducting block, described insulated column top to be stretched in the first insulating sleeve and is connected with conducting block, first insulating sleeve both sides sidewall has aperture, pigtail splice is separately installed with in aperture, pigtail splice is connected with conducting block in the first insulating sleeve respectively by wire, two pigtail splices are also connected to lead-in wire, two lead-in wires are respectively along first, between second insulating sleeve, gap passes from top cover top after extending, and two lead-in wires are each passed through coil case sidewall and are connected with the coil in coil case.
Described a kind of electromagnetic relief valve, is characterized in that: described valve gap is fixedly connected with by clamping bolt with valve port outer wall adpting flange, and is provided with seal ring between valve gap and adpting flange.
Described a kind of electromagnetic relief valve, is characterized in that: be provided with pad bottom described coil case and between valve gap.
Described a kind of electromagnetic relief valve, is characterized in that: form outside thread flanged structure bottom described conducting block, and described insulated column top forms interior threaded hole, and insulated column top to be stretched in the first insulating sleeve and is threaded with conducting block.
Described a kind of electromagnetic relief valve, it is characterized in that: also include the lead-in wire shell being arranged on top cover top, lead-in wire shell sidepiece is provided with extension part, and lead-in wire housing extension is communicated to coil case sidepiece, described lead-in wire casing is at two lead-in wires through outside the line body at top cover top, and lead-in wire edge goes between, housing extension penetrates in coil case and is connected with coil.
Described a kind of electromagnetic relief valve, it is characterized in that: described charging air inlet comprises cylindrical shell, cylindrical shell is arranged on corresponding urceolus upper portion side wall lead to the hole site outside urceolus, cylindrical shell and through hole connecting end are set to the semiclosed end of middle its central band round tube hole, the cylindrical shell the other end is open, valve is slidably fitted with in the round tube hole of the semiclosed end of cylindrical shell, also be slidably fitted with in cylindrical shell and be connected to laterostigmatal cylindrical slider, multiple round tube hole is had in slide block, valve is also set with spring, spring one end is fixed on slide block, and the spring the other end is fixed on the semiclosed end of cylindrical shell.
Principle of the present invention is:
The present invention, mainly for the vacuum chamber overpressure protection system in Tokamak nuclear fusion device, proposes a kind of new electromagnetic relief valve, limits vacuum chamber pressure.Solenoid valve of the present invention is mainly through the change of pressure pick-up induction pressure, and the on/off of control coil is electric, and then control valve is opening/closing.When the coil is energized, because dynamic iron core is subject to the lifting force in magnetic field, dynamic iron core drives flap to rise together, and flap is opened; When the coil is de-energized, under the effect of Compress Spring, flap is closely pressed on valve seat, valve closing.Bellows in pressure pick-up is elastic element, is communicated with inlet ductwork, the variable quantity of inlet pressure can be converted to the displacement amount of insulated column, and external power supply connected by lead-in wire.The increase of inlet pressure can make insulated column promote conducting block rising, and when inlet pressure reaches setting value, two pigtail splices are communicated with by conducting block, coil electricity, valve open, outside discharge medium; When inlet pressure declines, conducting block declines, coil blackout, valve closing.Can be adjusted (charge/discharge gas) by the internal pressure of charging air inlet to pressure pick-up that pressure pick-up urceolus connects, apply a Driving force to valve, pressure pick-up inside is and ft connection.
Advantage of the present invention is:
The present invention can meet the requirement of vacuum chamber overpressure protection, and structure is simple, does not need extra control loop, for automatic valve, is swift in motion, propose a kind of new decompression protection strategy.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is structure plan view of the present invention.
Fig. 3 is structure A-A sectional view of the present invention.
Fig. 4 is the enlarged view in C region in structure of the present invention.
Fig. 5 is the enlarged view in B region in structure of the present invention.
Embodiment
Shown in Fig. 1-Fig. 5, a kind of electromagnetic relief valve, comprise valve body 13, valve body 13 is by valve chamber 13-1, be communicated with the inlet pipeline 13-2 in valve chamber 13-1 side, be communicated with and form at the outlet conduit 13-3 of valve chamber 13-1 opposite side, valve chamber 13-1 top is provided with valve port and valve port outer wall is provided with adpting flange, be welded with in valve chamber 13-1 and valve chamber 13-1 is divided into upper and lower two-part valve seat 12, have in valve seat 12 in connection, the valve opening of bottom valve chamber, inlet pipeline 13-2 is communicated with bottom valve chamber in valve chamber 13-1 side, outlet conduit 13-3 is communicated with top valve chamber at valve chamber 13 opposite side, valve port place covers and is provided with valve gap 6, valve gap 6 center is provided with through hole, valve gap 6 bottom centre is provided with the flanged structure stretched in valve chamber 13-1, valve gap 6 central through bore extends to through flanged structure, flanged structure outer wall forms outside thread, and flanged structure is screwed with adjusting nut 7, valve seat 12 top is provided with the flap 11 covering valve opening, flap 11 top is vertically connected with flap connecting rod 9, flap connecting rod 9 top is from flanged structure, bonnet central through hole passes above valve gap 6, and flap connecting rod 9 and valve gap, flanged structure central through bore relative sliding coordinates, on the shaft that flap connecting rod 9 is positioned at valve chamber 13-1, cover has Compress Spring 10, Compress Spring 10 top is fixed on adjusting nut 7, Compress Spring 10 bottom is fixed on flap 11,
Valve gap 6 top is provided with coil case 5, insulating coating 4, and insulating coating 4 is arranged on neutral position in coil case 5, the coil 2 be enclosed within outside insulating coating 4 is provided with between coil case 5 and insulating coating 4, flap connecting rod 9 top passes valve gap 6 and stretches in insulating coating 4, and flap connecting rod 9 top in insulating coating 4 is fixed with dynamic iron core 3, coil case 5 inner top center is fixed with to be stretched in insulating coating 4 and the static iron core 1 kept at a certain distance away with dynamic iron core 3;
Inlet channel 13-2 top has round tube hole, the inlet channel 13-2 tip position at round tube hole place is provided with pressure pick-up 15 along round tube hole central axis, pressure pick-up 15 comprises the urceolus 31 being welded on inlet channel 13-2 top, in urceolus 31, bottom is vertically provided with the bellows 14 that bottom is welded on inlet channel 13-2 top, and bellows 14 and round tube hole concentrically axis, urceolus 31 internal upper part vertically slides and is provided with insulated column 17, insulated column 17 bottom is fixed on bellows 14 top, and insulated column 17 and bellows 14, round tube hole is axis concentrically, urceolus 31 top center is provided with through hole, and insulated column 17 top is stretched in the through hole of urceolus 31 top, on insulated column 17 shaft, cover has Returnning spring 16, Returnning spring 16 top is fixed on urceolus 31 top, insulated column 17 Basolateral forms land, Returnning spring 16 bottom is fixed in insulated column 17 Basolateral land, through hole is had in the barrel of urceolus 31 top, outside urceolus 31, corresponding lead to the hole site is provided with charging air inlet 18,
Urceolus 31 top is vertically fixed with cylindrical top cap 28, seal ring 29 is provided with between top cover 28 and urceolus 31 top, be provided with the first insulating sleeve 24 in top cover 28 and be enclosed within the second insulating sleeve 26 outside the first insulating sleeve 24, wherein the first insulating sleeve 24 bottom is stretched in the through hole of urceolus 31 top, in first insulating sleeve 24, bottom is vertically slidably fitted with conducting block 27, insulated column 17 top to be stretched in the first insulating sleeve 24 and is connected with conducting block 27, first insulating sleeve 24 both sides sidewall has aperture, pigtail splice 25 is separately installed with in aperture, pigtail splice 25 is connected with conducting block 27 in the first insulating sleeve 24 respectively by wire, two pigtail splices 25 are also connected to lead-in wire 20, two lead-in wires 20 are respectively along first, second insulating sleeve 24, between 26, gap passes from top cover 28 top after extending, and two lead-in wires 20 are each passed through coil case 5 sidewall and are connected with the coil 2 in coil case 5.
Valve gap 6 is fixedly connected with by clamping bolt 8 with valve port outer wall adpting flange, and is provided with seal ring 21 between valve gap 6 and adpting flange.
Pad 22 is provided with bottom coil case 5 and between valve gap 6.
Form outside thread flanged structure bottom conducting block 27, insulated column 17 top forms interior threaded hole, and insulated column 17 top to be stretched in the first insulating sleeve 24 and is threaded with conducting block 27.
Also include the lead-in wire shell 19 being arranged on top cover 28 top, lead-in wire shell 19 sidepiece is provided with extension part, and lead-in wire shell 19 extension part is communicated to coil case 5 sidepiece, lead-in wire shell 19 is enclosed within two lead-in wires 20 through outside the line body at top cover 28 top, and lead-in wire 20 edge goes between, shell 19 extension part penetrates in coil case 5 and is connected with coil 2.
Charging air inlet 18 comprises cylindrical shell 33, cylindrical shell 33 is arranged on corresponding urceolus upper portion side wall lead to the hole site outside urceolus 31, cylindrical shell 33 and through hole connecting end are set to the semiclosed end of middle its central band round tube hole, cylindrical shell 33 the other end is open, valve 35 is slidably fitted with in the round tube hole of the semiclosed end of cylindrical shell 33, the cylindrical slider 34 be connected on valve 35 is also slidably fitted with in cylindrical shell 33, multiple round tube hole is had in slide block 34, valve 35 is also set with spring 32, spring 32 one end is fixed on slide block 34, and spring 32 the other end is fixed on the semiclosed end of cylindrical shell 33.
The present invention includes valve body 13, valve seat 12, flap 11, flap connecting rod 9, valve gap 6, adjusting nut 7, Compress Spring 10, coil 2, static iron core 1, dynamic iron core 3, insulating sleeve 4, coil case 5, pressure pick-up 15, lead-in wire 20, seal ring 21 and clamping bolt 8; Valve body 13 is made up of the inlet pipeline of valve chamber, flowing medium and outlet conduit, and by casting or welding processing, an adpting flange is welded in valve body upper end; It is inner that valve seat 12 is welded on valve body 13, and flap connecting rod 9 lower end is welded on flap 11, and flap connecting rod 9 upper end is connected with dynamic iron core 3 by screw thread, offers circular groove and put seal ring outside flap connecting rod 9, and flap connecting rod 9 is at valve gap 6 central passage internal slide; Tapped hole and the bolt hole of some are offered in valve gap 6 upper end, and lower end flange and adjusting nut 7 are threaded connection, and valve gap 6 is connected by bolt 8 with valve body 13; Bolt hole is offered on coil case 5 top, and static iron core 1 is fixed on coil case 5 top by bolt 23, and coil case 5 is fixed on valve gap 6 by bolt and pad 22.
The inlet pipeline of valve body 13 is offered a round tube hole, bellows 14 on its axis in welding pressure susceptor 15 and urceolus 31, the lower end of insulated column 17 is fixed on bellows 14, upper end and conducting block 27 are threaded connection, and Returnning spring 16 is enclosed within the outside of insulated column 17; A center hole and some tapped holes are offered in urceolus 31 upper end, and weld a flange on center hole axis; Top cover 28 is cylinder-like structure, and two apertures are offered in upper end, and lower end is fixed on urceolus 31 by bolt 30 and seal ring 29; Insulating sleeve 24 is offered two apertures, pigtail splice 25 is arranged in aperture, and is stretched out by two apertures of top cover 28 upper end, and insulating sleeve 26 is enclosed within outside pigtail splice 25; Pigtail splice 25 and coil 2 couple together by lead-in wire 20, and it is outside that lead-in wire shell 19 is enclosed within lead-in wire 20, and be connected with coil case 5; Urceolus 31 is offered a round tube hole, charging air inlet 18 is welded in the round tube hole axial location of urceolus 31.
The semiclosed end that cylindrical shell 33 one end in charging air inlet 18 is open, one end is band round tube hole; Slide block 34 is cylindrical structural, has offered four round tube holes above, has been threaded with valve 35; Valve 35 is through the round tube hole on cylindrical shell 33, and spring 32 is fixed between cylindrical shell 33 and slide block 34.
In the assembly process of electromagnet Decompression valves, first valve seat 12 is welded on valve body 13 inner, be fixed on by adjusting nut 7 on valve gap 6 flange, Compress Spring 10 is enclosed within the outside of flap connecting rod 9, and valve gap 6 is connected with valve body 13 upper flanges with seal ring 21 by bolt 8 through after flap connecting rod 9; Then dynamic iron core 3 is fixed on the upper end of flap connecting rod 9, by bolt 23, static iron core 1 is fixed on the top of coil case 5, successively insulating sleeve 4, coil 2 and coil case 5 are enclosed within outside dynamic iron core 3, by pad 22 and bolt, coil case 5 are fixed on valve gap 6 upper end; Then bellows 14 is welded in the inlet ductwork of valve body 13, Returnning spring 16 is enclosed within the outside of insulated column 17, charging air inlet 18 is welded on outside urceolus 31, urceolus 31 is welded in inlet ductwork through after insulated column 17, successively insulating sleeve 24,26 and top cover 28 are enclosed within the outside of conducting block 27, top cover 28 is fixed on the top of urceolus 31 by seal ring and bolt 30; Finally use lead-in wire 20 pigtail splice 25 and coil 2 to be coupled together, and the shell 19 that goes between in lead-in wire 20 outer cover, form a complete electromagnetic relief valve.
Claims (6)
1. an electromagnetic relief valve, comprise valve body, described valve body is by valve chamber, be communicated with the inlet pipeline in valve chamber side, be communicated with and form at the outlet conduit of valve chamber opposite side, valve chamber top is provided with valve port and valve port outer wall is provided with adpting flange, be welded with in valve chamber and valve chamber is divided into upper and lower two-part valve seat, have in valve seat in connection, the valve opening of bottom valve chamber, described inlet pipeline is communicated with bottom valve chamber in valve chamber side, outlet conduit is communicated with top valve chamber at valve chamber opposite side, it is characterized in that: described valve port place covers and is provided with valve gap, bonnet central is provided with through hole, valve gap bottom centre is provided with the flanged structure stretched in valve chamber, bonnet central through hole extends to through flanged structure, described flanged structure outer wall forms outside thread, and flanged structure is screwed with adjusting nut, described valve seat top is provided with the flap covering valve opening, flap top is vertically connected with flap connecting rod, flap connecting rod top is from flanged structure, bonnet central through hole passes above valve gap, and flap connecting rod and valve gap, flanged structure central through bore relative sliding coordinates, on the shaft that described flap connecting rod is positioned at valve chamber, cover has Compress Spring, Compress Spring top is fixed on adjusting nut, Compress Spring bottom is fixed on flap,
Described valve gap top is provided with coil case, insulating coating, and insulating coating is arranged on neutral position in coil case, the coil be enclosed within outside insulating coating is provided with between coil case and insulating coating, described flap connecting rod top passes valve gap and stretches in insulating coating, and the flap connecting rod top in insulating coating is fixed with dynamic iron core, described coil case inner top center is fixed with to be stretched in insulating coating and the static iron core kept at a certain distance away with dynamic iron core;
Described inlet channel top has round tube hole, the inlet channel tip position at round tube hole place is provided with pressure pick-up along round tube hole central axis, described pressure pick-up comprises the urceolus being welded on inlet channel top, in urceolus, bottom is vertically provided with the bellows that bottom is welded on inlet channel top, and bellows and round tube hole concentrically axis, urceolus internal upper part vertically slides and is provided with insulated column, described insulated column bottom is fixed on bellows top, and insulated column and bellows, round tube hole is axis concentrically, described urceolus top center is provided with through hole, and insulated column top is stretched in the through hole of urceolus top, on insulated column shaft, cover has Returnning spring, Returnning spring top is fixed on urceolus top, described insulated column Basolateral forms land, Returnning spring bottom is fixed in insulated column Basolateral land, through hole is had in the barrel of described urceolus top, outside urceolus, corresponding lead to the hole site is provided with charging air inlet,
Described urceolus top is vertically fixed with cylindrical top cap, be provided with the first insulating sleeve in top cover and be enclosed within the second insulating sleeve outside the first insulating sleeve, wherein the first insulating sleeve bottom is stretched in the through hole of urceolus top, in first insulating sleeve, bottom is vertically slidably fitted with conducting block, described insulated column top to be stretched in the first insulating sleeve and is connected with conducting block, first insulating sleeve both sides sidewall has aperture, pigtail splice is separately installed with in aperture, pigtail splice is connected with conducting block in the first insulating sleeve respectively by wire, two pigtail splices are also connected to lead-in wire, two lead-in wires are respectively along first, between second insulating sleeve, gap passes from top cover top after extending, and two lead-in wires are each passed through coil case sidewall and are connected with the coil in coil case.
2. a kind of electromagnetic relief valve according to claim 1, is characterized in that: described valve gap is fixedly connected with by clamping bolt with valve port outer wall adpting flange, and is provided with seal ring between valve gap and adpting flange.
3. a kind of electromagnetic relief valve according to claim 1, is characterized in that: be provided with pad bottom described coil case and between valve gap.
4. a kind of electromagnetic relief valve according to claim 1, it is characterized in that: bottom described conducting block, form outside thread flanged structure, described insulated column top forms interior threaded hole, and insulated column top to be stretched in the first insulating sleeve and is threaded with conducting block.
5. a kind of electromagnetic relief valve according to claim 1, it is characterized in that: also include the lead-in wire shell being arranged on top cover top, lead-in wire shell sidepiece is provided with extension part, and lead-in wire housing extension is communicated to coil case sidepiece, described lead-in wire casing is at two lead-in wires through outside the line body at top cover top, and lead-in wire edge goes between, housing extension penetrates in coil case and is connected with coil.
6. a kind of electromagnetic relief valve according to claim 1, it is characterized in that: described charging air inlet comprises cylindrical shell, cylindrical shell is arranged on corresponding urceolus upper portion side wall lead to the hole site outside urceolus, cylindrical shell and through hole connecting end are set to the semiclosed end of middle its central band round tube hole, the cylindrical shell the other end is open, valve is slidably fitted with in the round tube hole of the semiclosed end of cylindrical shell, also be slidably fitted with in cylindrical shell and be connected to laterostigmatal cylindrical slider, multiple round tube hole is had in slide block, valve is also set with spring, spring one end is fixed on slide block, the spring the other end is fixed on the semiclosed end of cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437592.3A CN104329497B (en) | 2014-08-30 | 2014-08-30 | A kind of electromagnetic relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437592.3A CN104329497B (en) | 2014-08-30 | 2014-08-30 | A kind of electromagnetic relief valve |
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| CN104329497A true CN104329497A (en) | 2015-02-04 |
| CN104329497B CN104329497B (en) | 2016-08-24 |
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| CN201410437592.3A Expired - Fee Related CN104329497B (en) | 2014-08-30 | 2014-08-30 | A kind of electromagnetic relief valve |
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| CN110318704A (en) * | 2019-06-20 | 2019-10-11 | 中国石油大学(北京) | Pneumatic packer |
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| CN112857653A (en) * | 2021-01-11 | 2021-05-28 | 三桥惠(佛山)新材料有限公司 | Contact type magnetic pressure sensor |
| CN112984203A (en) * | 2021-02-05 | 2021-06-18 | 中国船舶科学研究中心 | Self-operated side valve with power-off protection function and use method thereof |
| CN113266697A (en) * | 2021-06-29 | 2021-08-17 | 浙江中孚流体机械有限公司 | Bellows solenoid valve convenient to switch |
| CN117040232A (en) * | 2023-10-10 | 2023-11-10 | 惠州市艾美珈磁电技术股份有限公司 | Electromagnetic pump with pressure release valve |
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