CN206036358U - Proportion solenoid valve for tail gas treatment - Google Patents
Proportion solenoid valve for tail gas treatment Download PDFInfo
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- CN206036358U CN206036358U CN201621088893.0U CN201621088893U CN206036358U CN 206036358 U CN206036358 U CN 206036358U CN 201621088893 U CN201621088893 U CN 201621088893U CN 206036358 U CN206036358 U CN 206036358U
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- iron core
- valve body
- dynamic iron
- gas treatment
- sleeve pipe
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Abstract
The utility model discloses a proportion solenoid valve for tail gas treatment, including the valve body and the valve gap of looks adaptation, seted up air inlet and gas outlet on the valve body, be linked together through gas passing channel between air inlet and the gas outlet, valve gap upper portion is equipped with electromagnet assembly, electromagnet assembly includes shell, coil brace, moves the iron core and be fixed in the quiet iron core of sleeve pipe upper end around arranging coil on the coil brace in, assembling in what sleeve pipe, the sleeve pipe internal energy at coil brace center reciprocated, quiet iron core with move and be provided with magnetic isolation sheet between the iron core, the periphery of moving the iron core with be provided with wear -resisting cover between the sheathed tube inner wall, the lower extreme that moves the iron core with gas passing channel cooperatees, the bottom of valve body is provided with the heating plate. The utility model has the advantages of: simple structure, long service life, the tail gas treatment is effectual.
Description
Technical field
This utility model is related to electromagnetic valve manufacturing technology field, especially a kind of vent gas treatment proportional solenoid.
Background technology
General electromagnetic valve is made up of magnet exciting coil, secured core, compression spring, movable core, valve body etc..Its work is former
Manage and be, when magnet exciting coil no power, the seal head of secured core is in compression spring and the back pressure effect of valve air inlet medium
Under, make valve closing.When being powered to magnet exciting coil, electromagnetic force overcomes the anti-work of the back pressure of compression spring and valve air inlet medium
Firmly, movable core is made to move toward at secured core, until two plane adhesives, now valve is in open mode.
The one kind of proportional solenoid as electromagnetic valve, its operation principle are, on the basis of general electromagnetic valve, to be believed by PWM
Number realizing the control of electromagnetic valve flow；Proportional solenoid is widely used, such as in the vent gas treatment of automobile.Electromagnetic valve by
It is frequent in its opening and closing, the heavy wear of moving component is often caused, and causes the service life of electromagnetic valve not high；In addition, by
It is unadjustable in the position of the static iron core of existing proportional solenoid, the raising required to fitted position between parts is caused, is entered
And improve processing cost.
At present, there is a kind of method in the vent gas treatment of automobile, be the nitrogen in the ammonia and tail gas discharged using solid-state ammonia
Oxide reaction generates nitrogen, and so as to control the discharge of nitrogen oxides, but when the reaction temperature is excessively low, solid-state ammonia can not be fine
Discharge ammonia, so as to cause the treatment effect of tail gas undesirable.
The content of the invention
Technical problem to be solved in the utility model is the present situation for prior art, there is provided simple structure, using the longevity
Life length, a kind of good vent gas treatment proportional solenoid of vent gas treatment effect.
This utility model solve the technical scheme that adopted of above-mentioned technical problem for：
A kind of vent gas treatment proportional solenoid, includes the valve body and valve gap being adapted, offers air inlet on valve body
And gas outlet, passing through gas passage between air inlet and gas outlet and be connected, valve gap top is equipped with electromagnet assembly, electric magnet
Component include shell, coil brace, the coil being wound on coil brace, the sleeve pipe for being assemblied in coil brace center, in sleeve pipe
The dynamic iron core that can be moved up and down and the static iron core for being fixed on sleeve upper end, are provided with every magnetic between static iron core and the dynamic iron core
Piece, is provided with wear-resistant sleeve between the periphery of dynamic iron core and the inwall of described sleeve pipe, gas passage phase is crossed with described in the lower end of dynamic iron core
Coordinate；The bottom of valve body is provided with heating plate.
The technical measures of optimization also include：
A pressure-releasing chamber is provided with above-mentioned dynamic iron core, is formed with and letting out that the pressure-releasing chamber is connected on the side wall of dynamic iron core
Pressure hole.
The lower end of above-mentioned dynamic iron core is equipped with sealing gasket, and sealing gasket is engaged with the gas passage of crossing.
Using threaded connection between above-mentioned valve body and valve gap, sealing ring between valve body and valve gap, is provided with.
It is located at the periphery for crossing gas passage to cut to form a conical surface on above-mentioned valve body.
The periphery of above-mentioned gas outlet is formed with bulge loop.
A kind of vent gas treatment proportional solenoid of this utility model, simple structure, which passes through to set in the periphery of dynamic iron core
Wear-resistant sleeve, so as to avoid the direct friction between dynamic iron core outer wall and internal surface of sleeve pipe, and then avoids galling, such energy
Service life is improved enough；Antifreeze plate is set between static iron core and dynamic iron core, by increasing capacitance it is possible to increase the release time of dynamic iron core, Neng Gouti
Rise the reaction sensitivity of electromagnetic valve；In addition, which arranges heating plate in the bottom of valve body, ensure that by the heating of heating plate solid
State ammonia is converted into ammonia, it is ensured that ammonia is reacted with nitrogen oxides, so as to ensure that vent gas treatment effect.
Description of the drawings
Fig. 1 is cross section structure diagram of the present utility model；
Fig. 2 is A portions enlarged drawing in Fig. 1.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing embodiment.
It is structural representation of the present utility model as shown in Figure 1 to Figure 2,
Reference therein is：Valve body 1, air inlet 11, gas outlet 12, bulge loop 12a, cross gas passage 13, conical surface 13a,
Valve gap 2, shell 31, coil brace 32, coil 33, sleeve pipe 34, dynamic iron core 35, pressure-releasing chamber 35a, relief hole 35b, sealing gasket 35c,
Static iron core 36, antifreeze plate 4, wear-resistant sleeve 5, heating plate 6, sealing ring 7.
As shown in Figure 1 to Figure 2,
A kind of vent gas treatment proportional solenoid, includes the valve body 1 and valve gap 2 being adapted, offers air inlet on valve body 1
Mouth 11 and gas outlet 12, passed through gas passage 13 and were connected between air inlet 11 and gas outlet 12,2 top of valve gap is equipped with electromagnetism
Iron component, electromagnet assembly include shell 31, coil brace 32, the coil 33 being wound on coil brace 32, are assemblied in coil
The sleeve pipe 34 at 32 center of support, 34 interior energy of the sleeve pipe dynamic iron core 35 for moving up and down and the static iron core for being fixed on 34 upper end of sleeve pipe
36, be provided with antifreeze plate 4 between static iron core 36 and the dynamic iron core 35, the periphery of dynamic iron core 35 and the inwall of described sleeve pipe 34 it
Between be provided with wear-resistant sleeve 5, the lower end of dynamic iron core 35 is engaged with the gas passage 13 of crossing；The bottom of valve body 1 is provided with heating plate
6。
Wear-resistant sleeve 5 is made using PTFE material；PTFE：Politef, is by the aggregated high score of tetrafluoroethene
Sub- compound, with excellent chemical stability, corrosion resistance, sealing, high lubrication non-stick, electrical insulating property and good anti-
Aging endurance.
Wear-resistant sleeve 5 is set between the inwall of dynamic iron core 35 and sleeve pipe 34, dynamic iron core 35 can be prevented effectively from and be moved through
Occur to rub with sleeve pipe 34 in journey, it is to avoid galling, can so improve service life.
In embodiment, a pressure-releasing chamber 35a is provided with dynamic iron core 35, is formed with and the pressure-releasing chamber on the side wall of dynamic iron core 35
The relief hole 35b that 35a is connected.
While dynamic iron core 35 moves up and down in sleeve pipe 34, amount of heat can be produced, and raises the temperature in valve, temperature
The rising of degree increases can the volume of gas, pressure increase；Pressure-releasing chamber 35a is set, and pressure-releasing chamber 35a is electric by relief hole 35b
The inner chamber of magnet valve is communicated, so that the space increase of the inner chamber of electromagnetic valve and its connection, reduces valve by the increase in space
Interior pressure, so that play a part of to protect electromagnetic valve.
In embodiment, the lower end of dynamic iron core 35 is equipped with sealing gasket 35c, and sealing gasket 35c is matched with the gas passage 13 of crossing
Close.
In embodiment, the periphery for crossing gas passage 13 is located on valve body 1 and cuts to form a conical surface 13a.
Arrange sealing gasket 35c to be further ensured that 35 lower end of dynamic iron core and cross sealing when gas passage 13 is affixed, and
The contact area that conical surface 13a can be effectively reduced between 13 upper surface of gas passage and sealing gasket 35c is set, is ensureing sealing
While, the difficulty of processing of upper surface is reduced, processing cost is reduced.
In embodiment, using threaded connection between valve body 1 and valve gap 2, sealing ring 7 between valve body 1 and valve gap 2, is provided with.
The setting of sealing ring 7 ensure that the sealing between valve body 1 and valve gap 2.
In embodiment, the periphery of gas outlet 12 is formed with bulge loop 12a.The setting of bulge loop 12a can increase skin-friction force, from
And improve the reliability connected between gas outlet 12 and escape pipe.
Operation principle：
Electromagnet assembly constitutes electric magnet after connecing electricity, this electromagnetic valve is a kind of normally close valve.
In the case of 33 power-off of coil, dynamic iron core 35 is located at lower limit under gravity, the lower end of dynamic iron core 35
Sealing gasket 35c is mutually sealed with gas passage 13 excessively on valve body 1, and so as to air inlet 11 and gas outlet 12 are separated, now electromagnetic valve is closed
Close.
After coil 33 is powered, coil 33 and static iron core 36 constitute electric magnet and produce electromagnetic force, dynamic iron core 35 is transported upwards
It is dynamic so that the lower end of dynamic iron core 35 is separated with gas passage 13 is crossed, open wide gas passage 13 so that air inlet 11 with go out
Turn between QI KOU 12, at this moment electromagnetic valve is opened.
In actual application, coil 33 understands continually power on/off, so that electromagnetic valve is constantly opened and closed,
During this, dynamic iron core 35 repeatedly moves up and down in sleeve pipe 34, and this electromagnetic valve arranges wear-resistant sleeve in 35 periphery of dynamic iron core
5, it is to avoid 35 outer wall of dynamic iron core and the directly contact of sleeve pipe 34 inwall, also avoid produced by the friction of metal directly contact
Abrasion, effectively increases the service life of dynamic iron core 35, and then improves the service life of whole electromagnetic valve.
The bottom of the valve body 1 of this electromagnetic valve is provided with heating plate 6, by the heating of heating plate 6, ensure that solid-state ammonia turns
Turn to ammonia, it is ensured that ammonia is reacted with nitrogen oxides, so as to ensure that vent gas treatment effect.
Most preferred embodiment of the present utility model is illustrated, the various change made by those of ordinary skill in the art or remodeling
All without departing from scope of the present utility model.
Claims (6)
1. a kind of vent gas treatment proportional solenoid, includes the valve body (1) and valve gap (2) being adapted, on described valve body (1)
Air inlet (11) and gas outlet (12) are offered, between described air inlet (11) and gas outlet (12), passed through gas passage (13)
It is connected, it is characterized in that：Described valve gap (2) top is equipped with electromagnet assembly, and described electromagnet assembly includes shell
(31), coil brace (32), the coil (33) being wound on coil brace (32), the sleeve pipe for being assemblied in coil brace (32) center
(34) dynamic iron core (35) that, sleeve pipe (34) interior energy is moved up and down and the static iron core (36) for being fixed on sleeve pipe (34) upper end, it is described
Static iron core (36) and the dynamic iron core (35) between be provided with antifreeze plate (4), the periphery of described dynamic iron core (35) with it is described
Wear-resistant sleeve (5) is provided between the inwall of sleeve pipe (34), and gas passage (13) phase is crossed with described in the lower end of described dynamic iron core (35)
Coordinate；The bottom of described valve body (1) is provided with heating plate (6).
2. a kind of vent gas treatment proportional solenoid according to claim 1, is characterized in that：In described dynamic iron core (35)
Be provided with a pressure-releasing chamber (35a), the pressure release being connected with the pressure-releasing chamber (35a) is formed with the side wall of described dynamic iron core (35)
Hole (35b).
3. a kind of vent gas treatment proportional solenoid according to claim 2, is characterized in that：Described dynamic iron core (35)
Lower end is equipped with sealing gasket (35c), and described sealing gasket (35c) is engaged with the gas passage (13) of crossing.
4. a kind of vent gas treatment proportional solenoid according to claim 3, is characterized in that：Described valve body (1) and valve
Using threaded connection between lid (2), between described valve body (1) and valve gap (2), sealing ring (7) is provided with.
5. a kind of vent gas treatment proportional solenoid according to claim 4, is characterized in that：Described valve body (1) is upper
Cut to form a conical surface (13a) in the periphery for crossing gas passage (13).
6. a kind of vent gas treatment proportional solenoid according to claim 5, is characterized in that：Described gas outlet (12)
Periphery is formed with bulge loop (12a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621088893.0U CN206036358U (en) | 2016-09-29 | 2016-09-29 | Proportion solenoid valve for tail gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621088893.0U CN206036358U (en) | 2016-09-29 | 2016-09-29 | Proportion solenoid valve for tail gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206036358U true CN206036358U (en) | 2017-03-22 |
Family
ID=58297002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621088893.0U Active CN206036358U (en) | 2016-09-29 | 2016-09-29 | Proportion solenoid valve for tail gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206036358U (en) |
-
2016
- 2016-09-29 CN CN201621088893.0U patent/CN206036358U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315514, Zhejiang, Ningbo province Fenghua District Jiangkou Street Square Bridge Industrial Zone Hengfeng Road West End Patentee after: Xingyu electronic (Ningbo) Co. Ltd. Address before: 315040, Ningbo, Zhejiang province Fenghua Jiangkou Street Square Bridge Industrial Zone Hengfeng Road West End Patentee before: FENGHUA XINGYU ELECTRONICS CO., LTD. |
|
| CP03 | Change of name, title or address |