CN203847753U - Three-way regulating valve - Google Patents
Three-way regulating valve Download PDFInfo
- Publication number
- CN203847753U CN203847753U CN201420288794.1U CN201420288794U CN203847753U CN 203847753 U CN203847753 U CN 203847753U CN 201420288794 U CN201420288794 U CN 201420288794U CN 203847753 U CN203847753 U CN 203847753U
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- Prior art keywords
- valve
- sealing
- rod
- valve rod
- side wall
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- Expired - Fee Related
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Abstract
The utility model relates to a three-way regulating valve. According to the three-way regulating valve, the sealing performance of the valve rod portion is improved. According to the specific technical scheme, the three-way regulating valve comprises a valve body, a valve seat, a valve deck and a valve rod. The valve body is connected with the valve seat. The valve deck comprises an upper valve deck body, a connecting part and a lower valve deck body from top to bottom. The lower valve deck body is connected with the valve body. The valve rod comprises the first end and the second end. The first end of the valve rod penetrates out of the upper valve deck body. The second end of the valve rod and a valve element are connected into the valve body. An end opening of the upper valve deck body is internally provided with a sealing base. A sealing ring is arranged between the inner side wall of the sealing base and the outer side wall of the valve rod. A sealing gland is arranged between an end opening of the sealing base and the valve rod. A sealing piece used for sealing is arranged between the outer side wall of the valve rod and the inner side wall of the valve deck. Leakage caused by movement of the valve rod is prevented through a dual-valve-rod-seal structure, and the service life of the three-way regulating valve is effectively prolonged.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of three-way control valve.
Background technique
Three-way control valve, is comprised of linear-motion electronic electric actuator and three-way converging (shunting) valve of employing cylinder type thin-walled window-shaped spool.Have compact structure, lightweight, be active in one's movements, Flow characteristics is accurate, directly accept control signals such as (4-20mA DC0-10mA DC or 1-5V DC) and the single phase poaer supply of regulation meter input and can control running, the auto-adjustment control of realization to process pipeline flowing medium, the process parameter that is widely used in accurately controlling the media such as gas, liquid, steam, as the parameters such as pressure, flow, temperature, liquid level remain on setting value, is suitable for that a kind of fluid is divided into two tunnels by three-way valve and flows out or two kinds of fluids are merged into a kind of operating mode of fluid through three-way valve.General three-way control valve, valve body and valve gap have screw thread, clip, flange, etc. multiple Placement, the various ways such as that driving mode has is electronic, pneumatic, hydraulic pressure, and the main cause that affects life of valve is sealing mechanism, tradition three-way valve flap is used stainless steel body to do sealing surface, valve rod is just used graphite packing to seal, and its sealability is poor, affects the working life of valve.
Model utility content
In order to overcome the deficiencies in the prior art, the technical problems to be solved in the utility model is to improve the sealability of three-way control valve.
For addressing the above problem, the technological scheme that the utility model adopts is as follows: a kind of three-way control valve, comprise valve body, valve seat, valve gap, valve rod, valve body is connected with valve seat, valve gap is respectively bonnet from top to bottom, joint and bottom flange, bottom flange is connected with valve body, valve rod comprises first end and the second end, the first end of valve rod is set out from bonnet, the second end and the spool of valve rod are connected in valve body, in the port of bonnet, be provided with sealing seat, between the madial wall of sealing seat and the outer side wall of valve rod, be provided with seal ring, between the port of sealing seat and valve rod, be provided with sealing gland, between the outer side wall of valve rod and the madial wall of valve gap, be provided with the bellows seal for sealing.
Preferably: between bottom flange and valve body, be provided with the pad for enhanced leaktightness effect.
Preferably: the outer side wall of valve gap joint is provided with the heat dissipating ring for increasing heat radiation area.
Compared to existing technology, the beneficial effects of the utility model are: compare with existing three-way control valve, the utlity model has dual valve rod leak-proof structure prevents that stem movement from causing and leaks, wherein first is sealed into sealing seat press seal part, it is tightly invested on valve gap and prevent that stem movement from causing dielectric leakage, second is sealed into the graphite packing of sealing gland compression and prevents that stem movement from causing dielectric leakage, on the key structure of valve motion, carried out dual sealing configuration setting, greatly reduce the possibility that valve rod causes medium to be revealed in movement process, effectively extend the working life of valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model three-way control valve;
Fig. 2 is the structural representation of the utility model valve gap and valve body.
In figure, sign is described as follows:
1, valve body; 2, valve seat; 3, spool; 4, valve rod; 5, pad; 6, bellows seal; 7, valve gap; 8, sealing seat; 9, seal ring; 10, sealing gland; 11, strut; 12, land; 13 electric actuator; 701, bonnet; 702, joint; 703, bottom flange; 704, heat dissipating ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1-2, a kind of three-way control valve, comprise valve body 1, valve seat 2, valve gap 7, valve rod 4, electric actuator 13, valve body 1 is connected with valve seat 2, valve gap 7 comprises bonnet 701, 703 3 parts of joint 702 and bottom flange, electric actuator 13 is connected with bonnet 701 by strut 11, bottom flange 703 is connected with valve body 1, valve rod 4 comprises first end and the second end, the first end of valve rod 4 is set out from bonnet 701, the first end of valve rod 4 is connected with electric actuator 13 by land 12, the second end of valve rod 4 and spool 3 are connected in valve body 1, in the port of bonnet 701, be provided with sealing seat 8, between the outer side wall of the madial wall of sealing seat 8 and valve rod 4, be provided with seal ring 9, between the outside port of sealing seat 8 and valve rod 4, be provided with sealing gland 10, between valve rod 4 outer side walls and valve gap 7 madial walls, be provided with the bellows seal 6 for sealing.
Further improve, between bottom flange 703 and valve body 1, be provided with the pad 5 for enhanced leaktightness effect, strengthen the sealability between valve gap 7 and valve body 1, and play buffer function.
Further improve, the outer side wall of valve gap joint 702 is provided with the heat dissipating ring 704 for increasing heat radiation area, reaches better radiating effect.
Concrete preferred implementation, the utility model mainly consists of three parts, pressure part: comprise valve body 1, valve seat 2, spool 3, valve rod 4, valve gap 7; Sealing: comprise bellows seal 6, pad 5, seal ring 9, sealing gland 10; Actuator: comprise land 12, strut 11, electric actuator 13.
Valve body 1 is fixedly connected with by fastening piece with valve gap 7, valve seat 2 and valve body 1 are threaded connection, spool 3 is locked and is connected and forms sealing mechanism with valve seat 2 by fastening piece with valve rod 4, electric actuator 13 is fixedly connected with by strut 11 with valve gap 7, electric actuator 13 is connected effective control valve with valve rod 4 by land 12 lockings and is communicated with, blocks or regulate control fluid, Sealing 6, pad 5, seal ring 9, sealing gland 10 are compressed and are formed resistant to elevated temperatures dual valve stem seal mechanism by screw thread and fastening piece, can effectively prevent that the kinetic medium of valve rod 4 from leaking.
The utility model product also can adopt the tapered sealing surface weld deposit cemented carbide of spool conical seal (contact) face and valve seat to form sealing mechanism, it is high temperature resistant, wear-resisting, corrosion-resistant and good seal performance, valve gap heat dissipating ring can reduce the temperature of valve stem seal mechanism, adding dual valve stem seal can effectively prevent that stem movement from causing and leak, be applicable to PN10～PN16 ,-20～350 ℃ of media, there is longer life and desirable sealing effect.
Above-mentioned mode of execution is only preferred implementation of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (3)
1. a three-way control valve, comprise valve body, valve seat, valve gap, valve rod, valve body is connected with valve seat, valve gap is respectively bonnet, joint and bottom flange from top to bottom, bottom flange is connected with valve body, valve rod comprises first end and the second end, the first end of valve rod is set out from bonnet, the second end and the spool of valve rod are connected in valve body, it is characterized in that: in the port of described bonnet, be provided with sealing seat, between the madial wall of sealing seat and the outer side wall of valve rod, be provided with seal ring, between the port of sealing seat and valve rod, be provided with sealing gland; Between the outer side wall of valve rod and the madial wall of valve gap, be provided with the bellows seal for sealing.
2. three-way control valve as claimed in claim 1, is characterized in that: between described bottom flange and valve body, be provided with the pad for enhanced leaktightness effect.
3. three-way control valve as claimed in claim 1, is characterized in that: the outer side wall of described valve gap joint is provided with the heat dissipating ring for increasing heat radiation area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288794.1U CN203847753U (en) | 2014-05-30 | 2014-05-30 | Three-way regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288794.1U CN203847753U (en) | 2014-05-30 | 2014-05-30 | Three-way regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847753U true CN203847753U (en) | 2014-09-24 |
Family
ID=51560771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420288794.1U Expired - Fee Related CN203847753U (en) | 2014-05-30 | 2014-05-30 | Three-way regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847753U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931186A (en) * | 2015-12-30 | 2017-07-07 | 浙江三花汽车零部件有限公司 | A kind of reversal valve and its packaging technology |
| CN108087583A (en) * | 2016-11-21 | 2018-05-29 | 浙江三花汽车零部件有限公司 | A kind of electric T-shaped valve and automobile heating ventilation air-conditioning system |
| CN108223883A (en) * | 2017-12-29 | 2018-06-29 | 中山利特隆瓦斯器材有限公司 | A kind of Double-gas-source oven air valve |
| CN110440028A (en) * | 2019-09-06 | 2019-11-12 | 四川赫菲斯托气化发电设备有限公司 | A kind of triple valve on biomass stove outlet line |
| CN110454590A (en) * | 2019-09-06 | 2019-11-15 | 四川赫菲斯托气化发电设备有限公司 | Fluid valve for biomass processing systems |
-
2014
- 2014-05-30 CN CN201420288794.1U patent/CN203847753U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931186A (en) * | 2015-12-30 | 2017-07-07 | 浙江三花汽车零部件有限公司 | A kind of reversal valve and its packaging technology |
| CN108087583A (en) * | 2016-11-21 | 2018-05-29 | 浙江三花汽车零部件有限公司 | A kind of electric T-shaped valve and automobile heating ventilation air-conditioning system |
| CN108223883A (en) * | 2017-12-29 | 2018-06-29 | 中山利特隆瓦斯器材有限公司 | A kind of Double-gas-source oven air valve |
| CN108223883B (en) * | 2017-12-29 | 2024-03-26 | 中山利特隆瓦斯器材有限公司 | Double-air source oven air valve |
| CN110440028A (en) * | 2019-09-06 | 2019-11-12 | 四川赫菲斯托气化发电设备有限公司 | A kind of triple valve on biomass stove outlet line |
| CN110454590A (en) * | 2019-09-06 | 2019-11-15 | 四川赫菲斯托气化发电设备有限公司 | Fluid valve for biomass processing systems |
| CN110440028B (en) * | 2019-09-06 | 2024-02-13 | 四川赫菲斯托气化发电设备有限公司 | Three-way valve for biomass furnace outlet pipeline |
| CN110454590B (en) * | 2019-09-06 | 2024-02-13 | 四川赫菲斯托气化发电设备有限公司 | Fluid valve for biomass processing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 |