CN204328051U - Inflatable seal dome ball valve - Google Patents
Inflatable seal dome ball valve Download PDFInfo
- Publication number
- CN204328051U CN204328051U CN201420812081.0U CN201420812081U CN204328051U CN 204328051 U CN204328051 U CN 204328051U CN 201420812081 U CN201420812081 U CN 201420812081U CN 204328051 U CN204328051 U CN 204328051U
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- valve
- airbag aeration
- spool
- expansion sealing
- valve seat
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Abstract
Inflatable seal dome ball valve, include valve body, spool, blind flange, valve gap and valve rod, described upper valve rod, lower valve rod and spool form fixing spherical structure, described blind flange is provided with airbag aeration Expansion sealing valve seat, this airbag aeration Expansion sealing valve seat is arranged on blind flange by valve seat trim ring, described airbag aeration Expansion sealing valve seat has air bag, and the air chamber of air bag is connected with inflation means of deflation, coordinates after airbag aeration with the seal spool being in closed condition; Adopt fixing spherical structure, the operation moment of torsion of inflatable seal dome ball valve can be reduced and strengthen the degree of reliability of sealing, after avoiding spool pressurized, producing displacement; Adopt airbag aeration Expansion sealing valve seat, form airbag aeration Expansion sealing form, airbag aeration Expansion sealing valve seat is when valve rotates, and first deflation, does not rub with spheroid, is not also washed away by medium, thus improves the working life of valve.
Description
Technical field
The utility model relates to inflatable seal dome ball valve.
Background technique
What the dry ash in the field such as current electric power, metallurgy, chemical industry, food, pharmacy, dry material air-transport system were selected is all common soft sealing ball valve, because there is pretightening force all the time between valve seat and spool when using such ball valve, easy bite, valve is short for working life, and this failure problems has a strong impact on the use of valve.
Model utility content
In view of the technical problem existed in background technique, the technical problem that the utility model solves aims to provide a kind of dome ball valve of novel inflatable seal.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: inflatable seal dome ball valve, include valve body, spool, blind flange, valve gap and valve rod, described spool is arranged in valve body, described valve rod comprises upper valve rod and lower valve rod, described upper valve rod passes through valve body place is provided with filler and Gland, it is characterized in that: described upper valve rod, lower valve rod and spool form fixing spherical structure, the top of described valve body is provided with support, support is connected with the actuator that control valve opens and closes, this actuator comprises in the single-cylinder dual-action of transmission valve core rotation puts cylinder, described blind flange is provided with airbag aeration Expansion sealing valve seat, this airbag aeration Expansion sealing valve seat is arranged on blind flange by valve seat trim ring, described airbag aeration Expansion sealing valve seat has air bag, the air chamber of air bag is connected with inflation means of deflation, coordinate with the seal spool being in closed condition after airbag aeration.
The beneficial effects of the utility model are, adopt fixing ball (axle props up formula) structure, can reduce the operation moment of torsion of inflatable seal dome ball valve and strengthen the degree of reliability of sealing, producing displacement after avoiding spool pressurized; This structural type ensures that valve opening and closing is flexible to greatest extent, not by the impact of pressure medium size.Adopt airbag aeration Expansion sealing valve seat, form airbag aeration Expansion sealing form, airbag aeration Expansion sealing valve seat is when valve (spool) rotates, first deflation, do not rub with spheroid, also do not washed away by medium, namely in use overall process, airbag aeration Expansion sealing valve seat is in zero abrasion state, thus improves the working life of valve.Adopt in single-cylinder dual-action and put cylinder, avoid the dead angle promoted in motion, ensure that valve fast opening and closing and accurately put in place, meet the prerequisite of 0.4Mpa ~ 0.6Mpa at bleed pressure under, valve can open and close in 5 ~ 8 seconds, reached switch flexibly, rapidly.Therefore the utility model compared with prior art has substantive distinguishing features and progress.
Accompanying drawing explanation
Details and the working principle of mode of execution of the present utility model and embodiment are described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Wherein: 1, valve gap 2, valve body 3, bottom 4, lower valve rod 5, spool 6, upper valve rod 7, airbag aeration Expansion sealing valve seat 8, valve seat trim ring 9, blind flange 10, filler 11, filler Gland 12, support 13, actuator.
Embodiment
See accompanying drawing, inflatable seal dome ball valve in present embodiment, include valve body, spool, blind flange, valve gap and valve rod, described spool is arranged in valve body, described valve rod comprises upper valve rod and lower valve rod, and described upper valve rod, lower valve rod and spool form fixing spherical structure, adopts fixing ball (axle props up formula) structure, the operation moment of torsion of inflatable seal dome ball valve can be reduced and strengthen the degree of reliability of sealing, after avoiding spool pressurized, producing displacement.Described upper valve rod passes through valve body place is provided with filler and Gland, the top of described valve body is provided with support, support is connected with the actuator that control valve opens and closes, this actuator comprises in the single-cylinder dual-action of transmission valve core rotation puts cylinder, adopts in single-cylinder dual-action and puts cylinder, avoids the dead angle promoted in motion, ensure that valve fast opening and closing and accurately put in place, meet the prerequisite of 0.4Mpa ~ 0.6Mpa at bleed pressure under, valve can open and close in 5 ~ 8 seconds, reached switch flexibly, rapidly.
Described blind flange is provided with airbag aeration Expansion sealing valve seat, this airbag aeration Expansion sealing valve seat is arranged on blind flange by valve seat trim ring, therefore airbag aeration Expansion sealing valve seat is easier for installation, simultaneously also more firm, described airbag aeration Expansion sealing valve seat has air bag, the air chamber of air bag is connected with inflation means of deflation, coordinates after airbag aeration with the seal spool being in closed condition.After spool is closed, airbag aeration Expansion sealing valve seat inflation, ensures sealing; Before spool is opened, airbag aeration Expansion sealing valve seat is exitted, and departs from spool, then turns to fully open position.
During valve closing, first control by pneumatic actuator 13 closed position that spool 5 turns to valve latus rectum complete shut-down, then airbag aeration Expansion sealing valve seat 7 is inflated (air pressure 0.6 ~ 0.7MPa), makes airbag aeration Expansion sealing valve seat 7 and spool 5 close contact and ensures to seal.
During valve opening, airbag aeration Expansion sealing valve seat 7 is first exitted, and airbag aeration Expansion sealing valve seat 7 and spool 5 is disengaged completely, and then controls by actuator 13 enable possition that spool 5 turns to valve latus rectum standard-sized sheet.Due to the overall process that spool 5 is opening and closing, airbag aeration Expansion sealing valve seat 7 is not inflated, spool 5 and airbag aeration Expansion sealing valve seat 7 are in separating contacting state, and spool 5 does not rub with airbag aeration Expansion sealing valve seat 7, therefore improves the working life of valve to greatest extent.
Claims (1)
1. inflatable seal dome ball valve, include valve body (2), spool (5), blind flange (9), valve gap (1) and valve rod, described spool is arranged in valve body, described valve rod comprises upper valve rod (6) and lower valve rod (4), described upper valve rod (6) passes through valve body place is provided with filler (10) and Gland (11), it is characterized in that: described upper valve rod (6), lower valve rod (4) and spool (5) form fixing spherical structure, the top of described valve body is provided with support (12), support is connected with the actuator (13) that control valve opens and closes, this actuator comprises in the single-cylinder dual-action of transmission valve core rotation puts cylinder, described blind flange (9) is provided with airbag aeration Expansion sealing valve seat (7), this airbag aeration Expansion sealing valve seat (7) is arranged on blind flange (9) by valve seat trim ring (8), described airbag aeration Expansion sealing valve seat (7) has air bag, the air chamber of air bag is connected with inflation means of deflation, coordinate with the seal spool being in closed condition after airbag aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420812081.0U CN204328051U (en) | 2014-12-22 | 2014-12-22 | Inflatable seal dome ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420812081.0U CN204328051U (en) | 2014-12-22 | 2014-12-22 | Inflatable seal dome ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328051U true CN204328051U (en) | 2015-05-13 |
Family
ID=53164412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420812081.0U Active CN204328051U (en) | 2014-12-22 | 2014-12-22 | Inflatable seal dome ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328051U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780253A (en) * | 2019-03-22 | 2019-05-21 | 吴金龙 | A kind of sealing of air sealed is without friction pneumatic semisphere valve and its control device |
| CN109838579A (en) * | 2019-03-19 | 2019-06-04 | 常州亚泓环保科技有限公司 | The global valve of metallic multilayer |
| CN109838610A (en) * | 2019-03-19 | 2019-06-04 | 常州亚泓环保科技有限公司 | The ball valve of seal assembly with compensation function |
| CN111174540A (en) * | 2019-12-25 | 2020-05-19 | 常州市步步干燥设备有限公司 | Single-cone dryer with air bag sealing mechanism |
| CN113357396A (en) * | 2021-07-05 | 2021-09-07 | 湖南杉杉能源科技有限公司 | Inflatable ball valve convenient to dismantle installation |
-
2014
- 2014-12-22 CN CN201420812081.0U patent/CN204328051U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838579A (en) * | 2019-03-19 | 2019-06-04 | 常州亚泓环保科技有限公司 | The global valve of metallic multilayer |
| CN109838610A (en) * | 2019-03-19 | 2019-06-04 | 常州亚泓环保科技有限公司 | The ball valve of seal assembly with compensation function |
| CN109780253A (en) * | 2019-03-22 | 2019-05-21 | 吴金龙 | A kind of sealing of air sealed is without friction pneumatic semisphere valve and its control device |
| CN111174540A (en) * | 2019-12-25 | 2020-05-19 | 常州市步步干燥设备有限公司 | Single-cone dryer with air bag sealing mechanism |
| CN113357396A (en) * | 2021-07-05 | 2021-09-07 | 湖南杉杉能源科技有限公司 | Inflatable ball valve convenient to dismantle installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |