CN205013716U - Pneumatic craspedodrome journey single seat control valve - Google Patents
Pneumatic craspedodrome journey single seat control valve Download PDFInfo
- Publication number
- CN205013716U CN205013716U CN201520787249.1U CN201520787249U CN205013716U CN 205013716 U CN205013716 U CN 205013716U CN 201520787249 U CN201520787249 U CN 201520787249U CN 205013716 U CN205013716 U CN 205013716U
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- valve
- pneumatic
- chamber
- center vertical
- valve body
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Abstract
Pneumatic craspedodrome journey single seat control valve, which comprises the following components: a valve body, the valve gap of valve body upper end, set up the valve rod in the valve body, the valve rod end is provided with the valve clack, the pneumatic actuator of the valve rod junction valve side of covering, the valve body inner chamber sets up to staggered floor conduction structure, including left side arc -shaped passageway, vertical valve clack chamber in center and right side arc -shaped passageway, left side arc -shaped passageway is located right side arc -shaped passageway below and forms wrong highly, the left side central vertical valve clack chamber bottom of arc -shaped passageway intercommunication, right side arc -shaped passageway and central vertical valve clack chamber right side opening intercommunication, the valve clack is located central vertical valve clack intracavity, sets up with the cooperation of the vertical valve clack chamber bottom in center, and central vertical valve clack chamber bottom inner wall is provided with disk seat installation device, and central vertical valve clack chamber top sealing connection valve gap, valve rod pass valve gap central through hole and pneumatic actuator fixed connection, displacement about the pneumatic actuator control valve rod to the opening and closing of application valve body. Simple structure, it is sealed effectual, long service life.
Description
Technical field
The utility model relates to modulating valve, particularly relates to Pneumatic straight stroke single seat control valve.
Background technique
Modulating valve is also known as control valve, and it is the device removing to change rate-of flow in process control system with power operation.The control valve complex structure of prior art, poor sealing performance, spool (i.e. flap) Long-Time Service easily damages, the design of its valve body inner flow passage is unreasonable, cause sealing difficulty to strengthen, and the pressure that spool is subject to also increases, thus affect working life, also more harsh to seal request, have much room for improvement.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of structure simple, good sealing effect, the Pneumatic straight stroke single seat control valve of long service life.
For realizing the utility model object, provide following technological scheme: Pneumatic straight stroke single seat control valve, comprise valve body, the valve gap of valve body upper end, be arranged at the valve rod in valve body, valve stem end is provided with flap, the pneumatic actuator of the valve rod connection valve side of covering, it is characterized in that body cavity is set to staggered floor conducting structure, comprise left side curved channel, center vertical flap chamber and right side curved channel, it is high that left side curved channel is positioned at formation mistake below the curved channel of right side, left side curved channel is communicated with bottom, center vertical flap chamber, right side curved channel is communicated with center vertical flap chamber right openings, described flap is positioned at center vertical flap chamber, be equipped with bottom, center vertical flap chamber, bottom, center vertical flap chamber inwall is provided with valve seat erecting device, center vertical flap chamber end sealing connects valve gap, valve rod is fixedly connected with pneumatic actuator through bonnet central through hole, pneumatic actuator controls valve rod upper and lower displacement, thus the opening and closing of control valve body.
As preferably, described valve seat erecting device comprises spiral wound gasket, valve seat and valve cage, and described spiral wound gasket and valve cage compress valve seat two ends, and spiral wound gasket and valve cage connect and fix in the groove that arranges on valve body.
As preferably, between bonnet central through hole and valve rod, be provided with stuffing seal, the Gland that described stuffing seal comprises filler group and is arranged in filler group.
As preferably, valve gap bottom is provided with wealthy hole, center, and in wealthy hole, center, inner-outer sleeve is provided with guide pin bushing and guide thimble.
As preferably, valve gap nearly lower end sidewall is provided with a circle flange, and on flange, cover has adpting flange, and adpting flange is fixedly connected with the top, center vertical flap chamber of valve body by bolt.
As preferably, flap is oval spherical.
The utility model beneficial effect: leakage rate is little, is easy to ensure sealing, is applicable to leak require the medium occasion comparatively tight, pressure reduction is little, by the improvement to valve flowing channel, substantially increases working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
Embodiment 1: Pneumatic straight stroke single seat control valve, comprise valve body 1, the valve gap 2 of valve body 1 upper end, be arranged at the valve rod 3 in valve body 1, valve rod 3 end is provided with flap 4, valve rod 3 connects the pneumatic actuator 5 above valve gap 2, valve body 1 inner chamber is set to staggered floor conducting structure, comprise left side curved channel 1.1, center vertical flap chamber 1.2 and right side curved channel 1.3, it is high that left side curved channel 1.1 is positioned at formation mistake below the curved channel 1.3 of right side, left side curved channel 1.1 is communicated with bottom, center vertical flap chamber 1.2, right side curved channel 1.3 is communicated with center vertical flap chamber 1.2 right openings, described flap 4 is positioned at center vertical flap chamber 1.2, be equipped with bottom, center vertical flap chamber 1.2, bottom, center vertical flap chamber 1.2 inwall is provided with valve seat erecting device 6, center vertical flap chamber 1.2 end sealing connects valve gap 2, valve rod 3 is fixedly connected with pneumatic actuator 5 through valve gap 2 central through bore, pneumatic actuator 5 controls valve rod 3 upper and lower displacement, thus the opening and closing of control valve body 1.Described valve seat erecting device 6 comprises spiral wound gasket 6.1, valve seat 6.2 and valve cage 6.3, and described spiral wound gasket 6.1 and valve cage 6.3 compress valve seat 6.2 two ends, and spiral wound gasket 6.1 and valve cage 6.3 connect and fix in the groove that arranges on valve body 1.Be provided with stuffing seal 7 between valve gap 2 central through bore and valve rod 3, described stuffing seal 7 comprises filler group 7.1 and is arranged at the Gland 7.2 in filler group 7.1.Valve gap 2 bottom is provided with wealthy hole, center, and in wealthy hole, center, inner-outer sleeve is provided with guide pin bushing 2.1 and guide thimble 2.2.Valve gap 2 nearly lower end sidewall is provided with a circle flange, and on flange, cover has adpting flange 8, and adpting flange 8 is fixedly connected with the top, center vertical flap chamber 1.2 of valve body 1 by bolt.Flap 4 is oval spherical.
Claims (6)
1. Pneumatic straight stroke single seat control valve, comprise valve body, the valve gap of valve body upper end, be arranged at the valve rod in valve body, valve stem end is provided with flap, the pneumatic actuator of the valve rod connection valve side of covering, it is characterized in that body cavity is set to staggered floor conducting structure, comprise left side curved channel, center vertical flap chamber and right side curved channel, it is high that left side curved channel is positioned at formation mistake below the curved channel of right side, left side curved channel is communicated with bottom, center vertical flap chamber, right side curved channel is communicated with center vertical flap chamber right openings, described flap is positioned at center vertical flap chamber, be equipped with bottom, center vertical flap chamber, bottom, center vertical flap chamber inwall is provided with valve seat erecting device, center vertical flap chamber end sealing connects valve gap, valve rod is fixedly connected with pneumatic actuator through bonnet central through hole, pneumatic actuator controls valve rod upper and lower displacement, thus the opening and closing of control valve body.
2. Pneumatic straight stroke single seat control valve according to claim 1, it is characterized in that described valve seat erecting device comprises spiral wound gasket, valve seat and valve cage, described spiral wound gasket and valve cage compress valve seat two ends, and spiral wound gasket and valve cage connect and fix in the groove that arranges on valve body.
3. Pneumatic straight stroke single seat control valve according to claim 1, is characterized in that being provided with stuffing seal between bonnet central through hole and valve rod, the Gland that described stuffing seal comprises filler group and is arranged in filler group.
4. Pneumatic straight stroke single seat control valve according to claim 1, it is characterized in that valve gap bottom is provided with wealthy hole, center, in wealthy hole, center, inner-outer sleeve is provided with guide pin bushing and guide thimble.
5. Pneumatic straight stroke single seat control valve according to claim 1, is characterized in that valve gap nearly lower end sidewall is provided with a circle flange, and on flange, cover has adpting flange, and adpting flange is fixedly connected with the top, center vertical flap chamber of valve body by bolt.
6. Pneumatic straight stroke single seat control valve according to claim 1, is characterized in that flap is oval spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520787249.1U CN205013716U (en) | 2015-10-12 | 2015-10-12 | Pneumatic craspedodrome journey single seat control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520787249.1U CN205013716U (en) | 2015-10-12 | 2015-10-12 | Pneumatic craspedodrome journey single seat control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013716U true CN205013716U (en) | 2016-02-03 |
Family
ID=55212320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520787249.1U Expired - Fee Related CN205013716U (en) | 2015-10-12 | 2015-10-12 | Pneumatic craspedodrome journey single seat control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240546A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Pneumatic straight-stroke single-base control valve |
-
2015
- 2015-10-12 CN CN201520787249.1U patent/CN205013716U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240546A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Pneumatic straight-stroke single-base control valve |
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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: 20160203 Termination date: 20161012 |