CN203836314U - Large-flow pilot-operated solenoid valve - Google Patents
Large-flow pilot-operated solenoid valve Download PDFInfo
- Publication number
- CN203836314U CN203836314U CN201420211450.0U CN201420211450U CN203836314U CN 203836314 U CN203836314 U CN 203836314U CN 201420211450 U CN201420211450 U CN 201420211450U CN 203836314 U CN203836314 U CN 203836314U
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- Prior art keywords
- valve
- sealing seat
- pilot
- seal ring
- iron
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- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 64
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 92
- 229910052742 iron Inorganic materials 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 6
- 208000002925 dental caries Diseases 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000033558 biomineral tissue development Effects 0.000 description 3
- 239000007799 cork Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a large-flow pilot-operated solenoid valve. The large-flow pilot-operated solenoid valve comprises a main valve and a pilot-operated valve. The main valve comprises a valve body, a sealing seat, a main valve sealing loop, a main valve spring, and a valve sleeve, wherein the valve body is provided with a feed port, a discharge port, and a valve sleeve mounting opening; the sealing seat is disposed inside the valve body and between the feed port and the discharge port and can move up and down along the inner wall of the valve sleeve; the valve sleeve is mounted on the valve sleeve mounting opening in a sealed manner, and the contact place of the side face of the valve sleeve and the side face of the sealing seat is provided with a sealing ring; the sealing ring divides the cavity of the valve body into an upper cavity part and a lower cavity part; and a first sealing loop is arranged between the upper end of the sealing seat and the valve body, and the main valve sealing loop is arranged between the lower end of the sealing seat and the valve body. When the valve is opened, three groups of magnetic material parts can be combined together tightly and cannot disconnect due to the pressure, flow, environmental temperature, vibration, etc. Therefore, the stability and reliability of the valve are improved.
Description
Technical field
The utility model relates to a kind of large-flow-rate pilot formula solenoid valve.
Background technique
Two kinds of general its working methods of guide electromagnetic valve are all first to open a very little valve---pilot valve by magnetic force in the market, relief valve internal pressure rapidly, and then open main valve, augmented flow, to meet actual operation requirements.Difference is that the mode of opening main valve is various.
A kind of mode of opening main valve is: main valve is upwards lifted and opens by moving iron and cross bar.Its advantage is, after main valve open, the pulling force of cross bar (derive from moving iron and determine the magnetic attraction of iron) can ensure after main valve open relatively stable.Its shortcoming is, due to gapped between cross bar and main valve seat (this gap, for ensureing main valve aperture, is necessary), makes to be subject to airflow influence after main valve open and swings build-up of pressure, instability of flow; The aperture of main valve is subject to the impact of magnetic force simultaneously, can not open too large, therefore can not meet the requirement (unless strengthening power of electromagnetic coil) of large working pressure or large flow, again because large pressure and flow can form negative pressure at the little main valve opening of aperture, this negative pressure can pull down main valve and close main valve, thus the fault of causing.
The mode that another kind is opened main valve is: after pilot valve is opened, by the pressure of cavity above releasing sealed ring, and the pressure of cavity remains unchanged below seal ring, thereby main valve up and down between cavity (taking seal ring as boundary) mineralization pressure poor, the pressure that this pressure difference produces is opened main valve very like a cork.Its advantage is, the aperture of main valve and the magnetic force of coil are irrelevant, and the pressure correlation only producing with pressure reduction, therefore can have very large aperture, thereby meet large working pressure and the requirement of flow.Its shortcoming is, after main valve open, in the time that the pressure difference of the upper and lower cavity of seal ring is very little, the pressure that pressure difference produces can not overcome the elastic force of main spool spring, and at this moment main valve can be closed, thereby causes job insecurity, and pressure, changes in flow rate rise and fall.And the very little situation of pressure difference happens occasionally in actual use, as bleed pressure reduces the situation of while being finished (gas cylinder approach), situation (as the engine idle stage) that gas consumption reduces etc., all can make the upper and lower pressure difference of die cavity reduce.
Summary of the invention
The above-mentioned shortcoming existing in order to overcome existing guide electromagnetic valve, the utility model provides a kind of large-flow-rate pilot formula solenoid valve.
The technical solution adopted in the utility model is:
Large-flow-rate pilot formula solenoid valve, comprise main valve and pilot valve, it is characterized in that: described main valve comprises valve body, sealing seat, main valve seal ring, main spool spring and valve pocket, described valve body is provided with material feeding mouth, discharge port and valve pocket mount inlet, described sealing seat is placed in valve body and between material feeding mouth and discharge port, and can move up and down along the inwall of described valve pocket, on valve pocket mount inlet described in described valve pocket sealing is arranged on and the described side of valve pocket and the contact position of the side of sealing seat are provided with seal ring, described seal ring is separated into the die cavity of valve body, lower two cavitys, between the upper end of described sealing seat and valve body, be provided with the first seal ring, between the lower end of described sealing seat and valve body, be provided with described main valve seal ring,
Described pilot valve comprises pilot valve body, determines iron, moves iron, valve rod, pilot valve sealing gasket, pilot valve spring, electromagnetic coil and pressure cap, the upper end of described pilot valve body is provided with sealed mouth, and described sealed mouth is provided with described pilot valve sealing gasket; Described determine in the pilot valve body of top that iron is arranged on sealing seat, described moving iron is arranged on to be determined the top of iron and can move up and down along the inwall of described valve pocket, described determine to be provided with air-flow path between iron and moving iron, described air-flow path is connected upper cavity; Described moving iron, the central position of determining iron and sealing seat are respectively arranged with the first vent, the second vent and the 3rd vent that are interconnected, the upper surface central position of described sealing seat is provided with a projection, described projection is arranged in the second described vent, described projection and shown in the second vent between be provided with the second seal ring; Described main spool spring is arranged on sealing seat and determines and offsets with sealing seat and the lower surface of determining iron between iron and respectively, and the protruding both sides on the upper surface of described sealing seat are respectively equipped with groove, and one end of described main spool spring is contained in described groove; Described valve rod is with four-way pore, the upper end of described valve rod is arranged in the first described vent, the other end is arranged in the second described vent and is connected with the pilot valve spring supporting being installed in the second vent, is provided with the 3rd seal ring between described valve rod and the second vent; Described electromagnetic coil ring set is on described valve pocket; The described valve rod formation outlet passageway that matches with the second seal ring;
Described valve pocket upper end is arranged with described pressure cap, and the two ends of described pressure cap are arranged on described electromagnetic coil, are provided with the 4th seal ring between described pressure cap and electromagnetic coil.
Further, the equal diameters of the diameter of described sealed mouth and described valve rod.
Further, on described valve pocket, be provided with an equalizing orifice with the connection screw thread place of valve body.Due to the air inlet by spiral marking connection, it will be very little making the circulation latus rectum of this equalizing orifice.The effect of this equalizing orifice is that, in the time of electromagnetic coil power-off, pilot valve is closed, the gas entering from equalizing orifice will be full of the upper cavity of seal ring gradually, finally makes the chamber pressure up and down of seal ring equate, under the effect of main spool spring, main valve is closed, and whole valve cuts out.
Working principle of the present utility model is as follows:
In the time that electromagnetic coil is switched on, under magnetic force, moving iron moves down, and is pulled together with determining iron, and opens pilot valve at pilot valve sealing gasket place.Main valve now, taking seal ring as boundary, is divided into upper and lower two cavitys by the die cavity of valve.After pilot valve is opened, by the pressure of releasing sealed ring upper cavity, and the pressure of seal ring lower chamber is constant, thus main valve up and down between cavity (taking seal ring as boundary) mineralization pressure poor, the pressure that this pressure difference produces is opened main valve very like a cork.When after main valve open, move up rapidly and compress laminating with determining iron, because the sealing seat of main valve is also magnetic material, so, sealing seat, determines iron, and moving three groups of elements of magnetic material of iron are by combining tightly, the elastic force of main spool spring and pilot valve spring can not make them separately, thereby it is poor to ensure that main valve is not stressed, flow, ambient temperature, impacts such as vibration and throwing off, have strengthened stability and the reliability of valve; Meanwhile, because main valve is pressure difference opening type, can ensure the larger aperture of valve, thereby ensure the larger stable flow of valve.
In the utility model, pilot valve has adopted the principle of equilibrium valve.The equal diameters of the sealed mouth diameter of pilot valve and the valve rod at the 3rd seal ring place.So, due to being cancelled the pressure of sealing gasket that the pressure of fluid produces.Therefore, as long as the magnetic force that electromagnetic coil produces overcomes the elastic force of guide's spring and the frictional force of the 3rd seal ring can be opened pilot valve.Its advantage is, the air outlet hole of pilot valve can do greatlyr, has both reduced difficulty of processing, also makes the reaction of pilot valve and main valve sensitiveer, and pilot flow is larger, thereby meets the application of various different working conditions.
In the utility model, be provided with the valve rod and the second seal ring that are used in combination in the upper end of sealing seat, thereby form outlet passageway; The second seal ring, together with seal ring, ensures that sealing seat is stable in moving up and down, and without swinging, and reduces to be subject to the impact of flow perturbation.
The beneficial effects of the utility model are embodied in: in the time that valve is opened, three groups of elements of magnetic material, by combining tightly, are not stressed, flow, and ambient temperature, impacts such as vibration and throwing off, have strengthened stability and the reliability of valve; Meanwhile, because main valve is pressure difference opening type, can ensure the larger aperture of valve, thereby ensure the larger stable flow of valve.
Brief description of the drawings
Fig. 1 is the utility model overall structure schematic diagram.
Embodiment
With reference to Fig. 1, large-flow-rate pilot formula solenoid valve, comprise main valve and pilot valve, described main valve comprises valve body 1, sealing seat 2, main valve seal ring 4, main spool spring 19 and valve pocket 3, described valve body 1 is provided with material feeding mouth, discharge port and valve pocket mount inlet, described sealing seat 2 is placed in valve body 1 and between material feeding mouth and discharge port, and can move up and down along the inwall of described valve pocket 3, on valve pocket mount inlet described in described valve pocket 3 sealings are arranged on and the described side of valve pocket 3 and the contact position of the side of sealing seat are provided with seal ring 5, described seal ring 5 is separated into the die cavity of valve body 1, lower two cavitys, between the upper end of described sealing seat 2 and valve body 1, be provided with the first seal ring 17, between the lower end of described sealing seat 2 and valve body 1, be provided with described main valve seal ring 4,
Described pilot valve comprises pilot valve body, determines iron 6, moves iron 7, valve rod 9, pilot valve sealing gasket 13, pilot valve spring 15, electromagnetic coil 8 and pressure cap 11, the upper end of described pilot valve body is provided with sealed mouth, and described sealed mouth is provided with described pilot valve sealing gasket 13; Described determine in the pilot valve body of top that iron 6 is arranged on sealing seat 2, described moving iron 7 is arranged on to be determined the top of iron 6 and can move up and down along the inwall of described valve pocket 3, described determine to be provided with air-flow path 10 between iron 6 and moving iron 7, described air-flow path 10 is connected upper cavity; Described moving iron 7, the central position of determining iron 6 and sealing seat 2 are respectively arranged with the first vent, the second vent and the 3rd vent that are interconnected, the upper surface central position of described sealing seat 2 is provided with a projection, described projection is arranged in the second described vent, described projection and shown in the second vent between be provided with the second seal ring 16; Described main spool spring 19 is arranged on sealing seat 2 and determines and offsets with sealing seat 2 and the lower surface of determining iron 6 between iron 6 and respectively, protruding both sides on the upper surface of described sealing seat 2 are respectively equipped with groove, and one end of described main spool spring 19 is contained in described groove; Described valve rod 9 is with four-way pore, the upper end of described valve rod 9 is arranged in the first described vent, the other end be arranged in the second described vent and with pilot valve spring 15 support and connection that are installed in the second vent, between described valve rod 9 and the second vent, be provided with the 3rd seal ring 14; Described electromagnetic coil 8 ring sets are on described valve pocket 3; The described valve rod 9 formation outlet passageway that matches with the second seal ring 16;
Described valve pocket 3 upper ends are arranged with described pressure cap 11, and the two ends of described pressure cap 11 are arranged on described electromagnetic coil 8, are provided with the 4th seal ring 12 between described pressure cap 11 and electromagnetic coil 8.
Further, the equal diameters of the diameter of described sealed mouth and described valve rod 9.
Further, on described valve pocket 2, be provided with an equalizing orifice 18 with the connection screw thread place of valve body 1.Due to the air inlet by spiral marking connection, it will be very little making the circulation latus rectum of this equalizing orifice.The effect of this equalizing orifice is that, in the time of electromagnetic coil power-off, pilot valve is closed, the gas entering from equalizing orifice will be full of the upper cavity of seal ring gradually, finally makes the chamber pressure up and down of seal ring equate, under the effect of main spool spring, main valve is closed, and whole valve cuts out.
Working principle of the present utility model is as follows:
In the time that electromagnetic coil is switched on, under magnetic force, moving iron moves down, and is pulled together with determining iron, and opens pilot valve at pilot valve sealing gasket place.Main valve now, taking seal ring as boundary, is divided into upper and lower two cavitys by the die cavity of valve.After pilot valve is opened, by the pressure of releasing sealed ring upper cavity, and the pressure of seal ring lower chamber is constant, thus main valve up and down between cavity (taking seal ring as boundary) mineralization pressure poor, the pressure that this pressure difference produces is opened main valve very like a cork.When after main valve open, move up rapidly and compress laminating with determining iron, because the sealing seat of main valve is also magnetic material, so, sealing seat, determines iron, and moving three groups of elements of magnetic material of iron are by combining tightly, the elastic force of main spool spring and pilot valve spring can not make them separately, thereby it is poor to ensure that main valve is not stressed, flow, ambient temperature, impacts such as vibration and throwing off, have strengthened stability and the reliability of valve; Meanwhile, because main valve is pressure difference opening type, can ensure the larger aperture of valve, thereby ensure the larger stable flow of valve.
In the utility model, pilot valve has adopted the principle of equilibrium valve.The equal diameters of the sealed mouth diameter of pilot valve and the valve rod at the 3rd seal ring place.So, due to being cancelled the pressure of sealing gasket that the pressure of fluid produces.Therefore, as long as the magnetic force that electromagnetic coil produces overcomes the elastic force of guide's spring and the frictional force of the 3rd seal ring can be opened pilot valve.Its advantage is, the air outlet hole of pilot valve can do greatlyr, has both reduced difficulty of processing, also makes the reaction of pilot valve and main valve sensitiveer, and pilot flow is larger, thereby meets the application of various different working conditions.
In the utility model, be provided with the valve rod and the second seal ring that are used in combination in the upper end of sealing seat, thereby form outlet passageway; The second seal ring, together with seal ring, ensures that sealing seat is stable in moving up and down, and without swinging, and reduces to be subject to the impact of flow perturbation.
Content described in this specification embodiment is only enumerating of way of realization to inventive concept; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and conceive the equivalent technologies means that can expect according to the utility model in those skilled in the art.
Claims (3)
1. large-flow-rate pilot formula solenoid valve, comprise main valve and pilot valve, it is characterized in that: described main valve comprises valve body, sealing seat, main valve seal ring, main spool spring and valve pocket, described valve body is provided with material feeding mouth, discharge port and valve pocket mount inlet, described sealing seat is placed in valve body and between material feeding mouth and discharge port, and can move up and down along the inwall of described valve pocket, on valve pocket mount inlet described in described valve pocket sealing is arranged on and the described side of valve pocket and the contact position of the side of sealing seat are provided with seal ring, described seal ring is separated into the die cavity of valve body, lower two cavitys, between the upper end of described sealing seat and valve body, be provided with the first seal ring, between the lower end of described sealing seat and valve body, be provided with described main valve seal ring,
Described pilot valve comprises pilot valve body, determines iron, moves iron, valve rod, pilot valve sealing gasket, pilot valve spring, electromagnetic coil and pressure cap, the upper end of described pilot valve body is provided with sealed mouth, and described sealed mouth is provided with described pilot valve sealing gasket; Described determine in the pilot valve body of top that iron is arranged on sealing seat, described moving iron is arranged on to be determined the top of iron and can move up and down along the inwall of described valve pocket, described determine to be provided with air-flow path between iron and moving iron, described air-flow path is connected upper cavity; Described moving iron, the central position of determining iron and sealing seat are respectively arranged with the first vent, the second vent and the 3rd vent that are interconnected, the upper surface central position of described sealing seat is provided with a projection, described projection is arranged in the second described vent, described projection and shown in the second vent between be provided with the second seal ring; Described main spool spring is arranged on sealing seat and determines and offsets with sealing seat and the lower surface of determining iron between iron and respectively, and the protruding both sides on the upper surface of described sealing seat are respectively equipped with groove, and one end of described main spool spring is contained in described groove; Described valve rod is with four-way pore, the upper end of described valve rod is arranged in the first described vent, the other end is arranged in the second described vent and is connected with the pilot valve spring supporting being installed in the second vent, is provided with the 3rd seal ring between described valve rod and the second vent; Described electromagnetic coil ring set is on described valve pocket; The described valve rod formation outlet passageway that matches with the second seal ring;
Described valve pocket upper end is arranged with described pressure cap, and the two ends of described pressure cap are arranged on described electromagnetic coil, are provided with the 4th seal ring between described pressure cap and electromagnetic coil.
2. large-flow-rate pilot formula solenoid valve as claimed in claim 1, is characterized in that: the equal diameters of the diameter of described sealed mouth and described valve rod.
3. large-flow-rate pilot formula solenoid valve as claimed in claim 2, is characterized in that: on described valve pocket, be provided with an equalizing orifice with the connection screw thread place of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211450.0U CN203836314U (en) | 2014-04-28 | 2014-04-28 | Large-flow pilot-operated solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211450.0U CN203836314U (en) | 2014-04-28 | 2014-04-28 | Large-flow pilot-operated solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836314U true CN203836314U (en) | 2014-09-17 |
Family
ID=51514156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420211450.0U Expired - Lifetime CN203836314U (en) | 2014-04-28 | 2014-04-28 | Large-flow pilot-operated solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458769A (en) * | 2020-11-09 | 2022-05-10 | 英嘉动力科技无锡有限公司 | Quick response's guide's formula solenoid valve structure |
-
2014
- 2014-04-28 CN CN201420211450.0U patent/CN203836314U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458769A (en) * | 2020-11-09 | 2022-05-10 | 英嘉动力科技无锡有限公司 | Quick response's guide's formula solenoid valve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190508 Address after: 311814 No. 7-1 Fengye Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG MINGSHI XINGXIN HVAC TECHNOLOGY Co.,Ltd. Address before: 311814 No. 8 Mingshi Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG MINGSHI VALVE CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 311814 No. 7-1 Fengye Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Mingshi Xingxin HVAC Technology Co.,Ltd. Country or region after: China Address before: 311814 No. 7-1 Fengye Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG MINGSHI XINGXIN HVAC TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |