CN202001657U - Novel hard-seal fireproof ball valve - Google Patents
Novel hard-seal fireproof ball valve Download PDFInfo
- Publication number
- CN202001657U CN202001657U CN2011201077746U CN201120107774U CN202001657U CN 202001657 U CN202001657 U CN 202001657U CN 2011201077746 U CN2011201077746 U CN 2011201077746U CN 201120107774 U CN201120107774 U CN 201120107774U CN 202001657 U CN202001657 U CN 202001657U
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- valve
- valve seat
- spheroid
- novel hard
- fire prevention
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Abstract
The utility model provides a novel hard-seal fireproof ball valve, which includes a valve body, a valve cover, a ball body, a valve seat, a pressure ring and a valve rod. The ball body is arranged in the valve body, a rectangular groove is formed at the top of the ball body, the valve rod and the rectangular groove are matched, the valve seat and the spherical surface of the ball body form a stable and close fit, and a pretightening force plate spring is arranged at the bottom of the pressure ring to enable the valve seat to be always pressed on the ball body under the action of pretightening force. In the utility model, the pretightening force plate spring is arranged at the bottom of the pressure ring, the valve seat is always pressed on the ball body under the action of pretightening force, and the valve seat is tightly pressured towards the ball body when medium pressure appears, so that the seal performance of the ball valve is realized, the seal is reliable, the operation performance is excellent, and meanwhile the novel hard-seal fireproof ball valve has the fireproof function.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of hard sealing fire prevention ball valve.
Background technique
The application prospect of metal seal ball valve is very wide, at some high temperature, the High Pressure Difference position of oil, chemical industry, electric power, metallurgy, atomic energy industry, coalification works, nuclear power system etc., in order to the transmission of control media.Used valve on these devices or the pipeline is not only wanted to bear high temperature, High Pressure Difference, the erosion resistant operating mode of wear-resisting scrape along, but also good usability should be arranged.The valve seat of existing ball valve adopts soft sealing material mostly, and this makes that the service condition of the type valve is limited, can't use under high temperature, high pressure and abominable operating mode, can't guarantee sealability.
Summary of the invention
In order to overcome above-mentioned defective, the purpose of this utility model provides that a kind of operation is reliable, safety, and the hard sealing fire prevention ball valve of favorable sealing property is particularly useful for coalification works.
For achieving the above object, the technical solution of the utility model is:
A kind of novel hard sealing fire prevention ball valve, it comprises valve body, valve gap, spheroid, valve seat, trim ring and valve rod, and described spheroid is arranged in the valve body, and rectangle groove is offered at the spheroid top, and valve rod forms with described rectangle groove and cooperates.
Described valve seat and spheroid sphere form steady close fit, and the bottom of described trim ring is provided with the pretightening force leaf spring, make valve seat be pressed on the spheroid all the time under the effect of pretightening force.
Described valve body and valve gap surface of internal cavity all spray the Co-Cr hard alloy layer, and the passage of described spherome surface, trim ring and valve seat also sprays the Co-Cr hard alloy layer.
Be provided with fireproof pad between described trim ring and the valve seat.
Offer the storage ash-pit on the described valve seat.
The usefulness of technique scheme is:
Of the present utility model two movable valve seats and spheroid sphere form steady close fit, be provided with the pretightening force leaf spring in the bottom of trim ring, under the effect of leaf spring pretightening force, valve seat is pressed on the spheroid all the time, when pressure medium, makes valve seat tightly press to spheroid, thereby realize the sealability of ball valve, its sealing is reliable, and operating characteristics is good, has fire-proof function simultaneously.
The utility model adopts the technology of spraying Co-Cr hard alloy layer, has improved the usability of valve and sealing surface, makes valve and to require to use under wear-resistant, the erosion resistant condition at abominable, harshness, high temperature, high pressure.
The utility model is provided with fireproof pad between trim ring and valve seat, both played the sealing effect of entrance point and valve cavity, has fire-proof function again, can also prevent poisonous, harmful matter inlet passage simultaneously.
The utility model is offered the storage ash-pit on valve seat, can store an amount of coal ash, prevents that coal ash on the pipeline from further involving in the sealing position and the jam phenomenon occurring.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is this novel hard sealing fire prevention ball-valve structure schematic representation;
Fig. 2 is this novel hard sealing fire prevention ball valve complete shut-down status architecture schematic representation;
Fig. 3 is this novel hard sealing fire prevention ball seat (standard-sized sheet) structural representation;
Fig. 4 is this novel hard sealing fire prevention ball seat (complete shut-down) structural representation;
Fig. 5 is this novel hard sealing fire prevention ball valve sprayfused coating structural representation;
Fig. 6 is this novel hard sealing fire prevention ball seat storage ash-pit structural representation.
Embodiment
Embodiment
A kind of novel hard sealing fire prevention ball valve as shown in Figure 1, it comprises valve body 1, valve gap 2, spheroid 3, valve rod 4, lower valve rod 5, valve seat 6, trim ring 7, leaf spring 8, fireproof pad 9 and one group of double-screw bolt, nut 10.
Rectangle groove on the described spheroid 3 connects by valve rod 4, lower valve rod 5 is connected with interior blind hole under the spheroid 3, be arranged at valve body 1 cavity internal fixation, assembling fireproof pad 9 between described two valve seats 6, the trim ring 7, in leaf spring 8 is packed valve body and valve gap on filling up respectively, respectively valve body, valve gap are fixed together the formation housing by one group of double-screw bolt, nut 10 again bottom trim ring.Be formed with a ccontaining cavity and runner within this housing to run through.Be provided with the conical surface above the trim ring, fireproof pad closely contacts the assembling (see figure 3) by this conical surface guiding with valve seat, guaranteed the sealing between housing and the valve seat, stressed big more, its sealability is good more, to prevent that medium is from the clearance leakage between valve seat and the housing, again because this fireproof pad is to be formed by flexible (expansion) graphite compacting, it has loose porous, high resilience and characteristics such as inertia that most media are all had, at high temperature, the work down of high pressure or radiation condition, do not decompose, be out of shape or wear out, chemical property is stable.
Owing to adopt built-up welding Co-Cr cemented carbide 12 on the valve seat, spherome surface adopts special device to spray Co-Cr cemented carbide (see figure 5), pass through again after the manufacturing procedures such as special device processing, grinding and polishing, make the surface of the sealing surface of valve seat and spheroid can realize the steady close fit of minute surface level.This valve seat is under the effect of leaf spring pretightening force, and valve seat is pressed on the spheroid all the time, under promoting at pressure medium, makes valve seat tightly press to spheroid, thereby realizes that the sealing surface of valve can reach the sealing effect of medium zero leakage.
The operation that should seal the fire prevention ball valve is firmly finished opening-closing process by the handwheel of device of rotation driving, from the standard-sized sheet to the complete shut-down, need only half-twist, open and close quick, again since valve when standard-sized sheet or full cut-off, the sealing surface of spheroid and valve seat and media isolated, when medium passes through, can not cause the erosion of valve sealing face, so greatly improve the working life of valve sealing face.
Offer storage ash-pit 11(on this valve seat and see Fig. 6), its function is to store an amount of coal ash, prevent that the coal ash on the pipeline from further involving in the sealing position between housing and the valve seat and the jam phenomenon of valve seat in valve body or valve gap occurring, thereby guaranteed the sealability of valve seat.Because this fire-proof hard seal ball valve has wiping in opening-closing process, so greatly improve the working life of sealing surface.
The foregoing description only is an embodiment of the present utility model, but design concept of the present utility model is not limited only to this, everyly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection domain.
Claims (5)
1. novel hard sealing fire prevention ball valve, it is characterized in that: it comprises valve body, valve gap, spheroid, valve seat, trim ring and valve rod, and described spheroid is arranged in the valve body, and rectangle groove is offered at the spheroid top, and valve rod cooperates with described rectangle groove formation.
2. a kind of novel hard sealing fire prevention ball valve as claimed in claim 1, it is characterized in that: described valve seat and spheroid sphere form steady close fit, and the bottom of described trim ring is provided with the pretightening force leaf spring, make valve seat be pressed on the spheroid all the time under the effect of pretightening force.
3. a kind of novel hard sealing fire prevention ball valve as claimed in claim 1, it is characterized in that: described valve body and valve gap surface of internal cavity all spray the Co-Cr hard alloy layer, and the passage of described spherome surface, trim ring and valve seat also sprays the Co-Cr hard alloy layer.
4. a kind of novel hard sealing fire prevention ball valve as claimed in claim 1 is characterized in that: be provided with fireproof pad between described trim ring and the valve seat.
5. a kind of novel hard sealing fire prevention ball valve as claimed in claim 1 is characterized in that: offer the storage ash-pit on the described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201077746U CN202001657U (en) | 2011-04-13 | 2011-04-13 | Novel hard-seal fireproof ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201077746U CN202001657U (en) | 2011-04-13 | 2011-04-13 | Novel hard-seal fireproof ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001657U true CN202001657U (en) | 2011-10-05 |
Family
ID=44704398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201077746U Expired - Lifetime CN202001657U (en) | 2011-04-13 | 2011-04-13 | Novel hard-seal fireproof ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001657U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966750A (en) * | 2012-11-10 | 2013-03-13 | 无锡智能自控工程股份有限公司 | Tank bottom vacuum sampling ball valve |
| CN104766784A (en) * | 2014-06-30 | 2015-07-08 | 常州英诺能源技术有限公司 | Method for preparing flexible polycrystalline silicon thin film through deposition based on flexible graphite paper substrate |
| CN104879521A (en) * | 2015-06-12 | 2015-09-02 | 浙江成高阀门有限公司 | Wear-resisting ball valve for slurry and dust |
| CN107975615A (en) * | 2017-11-22 | 2018-05-01 | 西诺威阀门控制（苏州）有限公司 | Floating ball valve |
| CN108869781A (en) * | 2018-09-10 | 2018-11-23 | 赵桂凤 | A kind of natural gas valve |
-
2011
- 2011-04-13 CN CN2011201077746U patent/CN202001657U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966750A (en) * | 2012-11-10 | 2013-03-13 | 无锡智能自控工程股份有限公司 | Tank bottom vacuum sampling ball valve |
| CN104766784A (en) * | 2014-06-30 | 2015-07-08 | 常州英诺能源技术有限公司 | Method for preparing flexible polycrystalline silicon thin film through deposition based on flexible graphite paper substrate |
| CN104879521A (en) * | 2015-06-12 | 2015-09-02 | 浙江成高阀门有限公司 | Wear-resisting ball valve for slurry and dust |
| CN104879521B (en) * | 2015-06-12 | 2018-12-11 | 浙江成高阀门有限公司 | Slurry dust wear resistance ball valve |
| CN107975615A (en) * | 2017-11-22 | 2018-05-01 | 西诺威阀门控制（苏州）有限公司 | Floating ball valve |
| CN108869781A (en) * | 2018-09-10 | 2018-11-23 | 赵桂凤 | A kind of natural gas valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN FEIDA VALVE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FUJIAN FEIDA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 363900 Fujian city of Zhangzhou province Changtai Xingtai Industrial Zone Patentee after: Fujian Feida Valve Technology Co., Ltd. Address before: 363900 Fujian city of Zhangzhou province Changtai Xingtai Industrial Zone Patentee before: Fujian Feida Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |