CN204493781U - Self-erecting type ultra-low torque fixing ball valve - Google Patents
Self-erecting type ultra-low torque fixing ball valve Download PDFInfo
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- CN204493781U CN204493781U CN201520102232.8U CN201520102232U CN204493781U CN 204493781 U CN204493781 U CN 204493781U CN 201520102232 U CN201520102232 U CN 201520102232U CN 204493781 U CN204493781 U CN 204493781U
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Abstract
The open self-erecting type ultra-low torque fixing ball valve of the utility model, sealing between valve seat and spheroid adopts sphere to ball face sealing, by O type circle three and the sealing of fire proof seal circle between valve seat and valve gap, lower between fixed pivot axi and valve body by O type circle one and fire prevention gasket seal, by O type circle seven and fire prevention gasket seal between upper fixed pivot axi and valve body, by O type circle two and fire prevention gasket seal between valve gap and valve body, by O type circle eight and packing seal between live axle and upper fixed pivot axi, impulse adapter connects valve gap and impulse valve, Output pressure adapter connects impulse valve and valve gap, Output pressure adapter is connected with valve seat, Decompression valves Bonding pressure discharge conection and pressure drainage connection, valve seat, the confined space formed between sealing baffle and valve gap is greater than the space formed between valve seat and valve gap.Utilize impulse to take over and Output pressure adapter introducing pressure medium, utilize the thrust produced of medium that valve seat is separated with spheroid, thus eliminate the frictional force between sealing pair.
Description
Technical field
The utility model relates to ball valve, particularly relates to self-erecting type ultra-low torque fixing ball valve.
Background technique
The obvious advantages such as ball valve is rapid with its switch, flow resistance coefficient is little, sealability is excellent, modern industry is widely used, pipeline conveying relies on the advantage that its overall cost is low, obtain significant progress in the conveying such as oil, rock gas, and be apply maximum valves at long-distance transport pipes upper ball valve.But ball valve also has its drawback, the moment of torsion being exactly ball valve is bigger than normal, and what so just make drive unit choose is larger, and the valve holistic cost that this just makes is high.Traditional ball valve moment of torsion is bigger than normal, and what drive unit was chosen is larger, and then valve holistic cost is high.
Model utility content
The purpose of this utility model is to provide self-erecting type ultra-low torque fixing ball valve, and solve ball valve moment of torsion traditional in prior art bigger than normal, what drive unit was chosen is larger, and then valve holistic cost is high.
The technological scheme that the utility model adopts is: self-erecting type ultra-low torque fixing ball valve, comprises fixed pivot axi under valve body, valve gap, spheroid, valve seat, helical spring, live axle, upper fixed pivot axi, drive land, drive unit, impulse is taken over, Output pressure is taken over, impulse valve and Decompression valves, pressure drainage connection, sealing between valve seat and spheroid adopts sphere to ball face sealing, by O type circle three and the sealing of fire proof seal circle between valve seat and valve gap, lower between fixed pivot axi and valve body by O type circle one and fire prevention gasket seal, by O type circle seven and fire prevention gasket seal between upper fixed pivot axi and valve body, by O type circle two and fire prevention gasket seal between valve gap and valve body, by O type circle eight and packing seal between live axle and upper fixed pivot axi, sealed by O type circle five between sealing baffle and valve gap, sealed by O type circle six between sealing baffle and valve seat, impulse adapter connects valve gap and impulse valve, Output pressure adapter connects impulse valve and valve gap, Output pressure adapter and valve seat, the confined space formed between sealing baffle and valve gap is connected, Decompression valves Bonding pressure discharge conection and pressure drainage connection, valve seat, the sectional area of the confined space formed between sealing baffle and valve gap is greater than the sectional area in the space formed between valve seat and valve gap.
The valve version of described ball valve adopts three-body type fixed pivot axi structure.
The utility model compared with prior art tool has the following advantages: valve seat location is by valve gap, the confined space that formed between valve seat and sealing baffle, impulse is utilized to take over and Output pressure adapter introducing pressure medium, utilize the thrust produced of medium that valve seat is separated with spheroid, thus the frictional force eliminated between sealing pair, the utility model is by utilizing the pressure of medium itself, valve seat is made to depart from spheroid before opening, thus making the moment of torsion of valve be reduced to original 5% ~ 10%, bore is larger, the higher effect of pressure is more obvious.Make the drive unit cost of valve greatly reduce like this, reduce valve holistic cost, this advantage is at high pressure, heavy caliber and select the occasion of automatic drive particularly evident.
Accompanying drawing explanation
Fig. 1 of the present utility modelly looks up structural representation;
Fig. 2 is Facad structure schematic diagram of the present utility model
Fig. 3 is the utility model valve base sealing structure schematic diagram;
Fig. 4 is side structure schematic diagram of the present utility model;
In figure, 1, valve body; 2, lower fixed pivot axi; 3, fire prevention pad one; 4, O type circle one; 5, O type circle two; 6, fire prevention pad two; 7, valve gap; 8, self oiling bearing one; 9, self oiling bearing two; 10, spheroid; 11, valve seat; 12, O type circle three; 13, fire proof seal circle; 14, O type circle four; 15, helical spring; 16, self oiling bearing three; 17, self oiling bearing four; 18, live axle; 19, hexagon socket cap head screw; 20, sealing baffle; 21, O type circle five; 22, O type circle six; 23, self oiling bearing five; 24, O type circle seven; Fixed pivot axi on 25; 26 fire prevention pads three; 27, O type circle eight; 28, filler; 29, land is driven; 30, drive unit; 31 impulse adapters; 32; Output pressure is taken over; 33, impulse valve; 34 Decompression valvess; 35 pressure drainage connections; I, the space formed between valve seat 11 and valve gap 7; II valve seat 11, the confined space formed between sealing baffle 20 and valve gap 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
As Fig. 1, Fig. 2, Fig. 3 and Fig. 4, self-erecting type ultra-low torque fixing ball valve, comprises valve body 1, lower fixed pivot axi 2, valve gap 7, spheroid 10, valve seat 11, helical spring 15, live axle 18, upper fixed pivot axi 25, drive land 29, drive unit 30, impulse adapter 31, Output pressure adapter 32, impulse valve 33 and Decompression valves 34, pressure drainage connection 35, sealing between valve seat 11 and spheroid 10 adopts sphere to ball face sealing, sealed by O type circle 12 and fire proof seal circle 13 between valve seat 11 and valve gap 7, sealed by O type circle 1 and fire prevention pad 3 between lower fixed pivot axi 2 and valve body 1, sealed by O type circle 24 and fire prevention pad 26 between upper fixed pivot axi 25 and valve body 1, sealed by O type circle 25 and fire prevention pad 6 between valve gap 7 and valve body 1, sealed by O type circle 28 and filler 27 between live axle 18 and upper fixed pivot axi 25, by the sealing of O type circle 5 21 between sealing baffle 20 and valve gap 7, by the sealing of O type circle 6 22 between sealing baffle 20 and valve seat 11, impulse adapter 31 connects valve gap 7 and impulse valve 33, Output pressure adapter 32 connects impulse valve 33 and valve gap 7, Output pressure adapter 32 and valve seat 11 are connected, Decompression valves 34 Bonding pressure discharge conection 32 and pressure drainage connection 35, valve seat 11, the sectional area of the confined space II formed between sealing baffle 20 and valve gap 7 is greater than the sectional area in the space I formed between valve seat 11 and valve gap 7.
Take said structure when mounted, first on valve seat 11, fill O type circle 3 12 and fire proof seal circle 13, then load in valve gap 7, then on valve gap, fill O type circle 25 and fire prevention pad 6, sealing baffle 20 fills O type circle 5 21, O type circle 6 22, load between valve seat 11 and valve gap 7 and fix with hexagon socket cap head screw 19, then load onto valve body 1 fastening; Valve seat 11 fills O type circle 4 14; At lower opening dress self oiling bearing 1, the self oiling bearing 29 of spheroid 10, the upper hole dress self oiling bearing 3 16 of spheroid 10, then load the body cavity of valve body 1 and valve gap 7 assembly installed, be loaded on valve seat 11, valve gap 7 and sealing baffle 20 assembly and fastening at another side; Lower fixed pivot axi 2 fills O type circle 1 and fire prevention pad 3, then loads valve body 1 and to reach in the lower stomidium of spheroid 10 and fastening; Live axle 18 fills self oiling bearing 4 17, then loads in spheroid 10; Upper fixed pivot axi 25 fills O type circle 7 24, O type circle 8 27, self oiling bearing 23 and fire prevention pad 26, then loads valve body 1 and to reach in the upper end hole of spheroid 10 and fastening; Upper fixed pivot axi loads material 28, and then dress drives land 29 fastening, dress drive unit 30 after last.
Valve after passing into medium, the space I first formed between valve seat 11 and valve gap 7, formed valve seat thrust F1, this thrust makes valve seat 11 compress spheroid 10, ensures the sealing between sealing pair, when valve needs to open and close, open the impulse valve 33 of pressure medium end, pressure medium is introduced valve seat 11, the confined space II formed between sealing baffle 20 and valve gap 7, now formed valve seat 11 1 thrust F2, this thrust makes valve seat 11 depart from spheroid 10 (contrary with F1 direction), because valve seat 11, the sectional area of the confined space II formed between sealing baffle 20 and valve gap 7 is greater than the sectional area in the space I formed between valve seat 11 and valve gap 7, thus under identical pressure medium F2 > F1, spheroid 10 is departed from like this at the effect lower valve base 11 of thrust F2, eliminate the frictional force of sealing duplicate.Then drive unit 30 is opened, open or throttle down, after valve opening and closing has driven to position, open Decompression valves 34, the pressure medium of the confined space II make valve seat 11, forming between sealing baffle 20 and valve gap 7 is released through Decompression valves 34 and pressure drainage connection 35, now valve seat 11 tight spheroid 10 under the acting in conjunction of thrust F1 and helical spring 15, close Decompression valves 34 after pressure releasing, operation completes.
The utility model valve version three-body type fixed pivot axi structure, ensures steady in running of spheroid 10, and increases self oiling bearing at pivotally connected place, greatly reduces the open and close torque of valve.Valve seat 11 and valve gap 7, fixed pivot axi and valve body 1, valve rod and upper fixed pivot axi 25, valve body 1 and valve gap 7 seal and all adopt O type circle to add Graphite pad sealing, ensure that the zero leakage of valve and the sealability after catching fire.Sealing between valve seat 11 and spheroid 10 adopts sphere to ball face sealing, when the benefit of this sealing is low pressure, sealing surface is close to linear sealing, the sealing force needed is very little can reach tight sealing, along with the rising of pressure, sealing force increases thereupon, sealing surface will be widened, pressure reduces sealing force and reduces thereupon, sealing surface will subtract narrow, level off to line style, the sealing surface of such valve can change along with the size of sealing force, the ratio Compressive Strength of sealing surface is substantially remained unchanged in the elastic range of material, sealing surface can not be damaged, extend the working life of valve.And valve seat 11 adopts helical spring 15 to provide pretightening force, ensure the leakproofness of the sealing of spheroid 10 and valve seat 11.The space of valve seat location by being formed between valve seat 11 and sealing baffle 20, impulse adapter 31 and Output pressure adapter 32 is utilized to introduce pressure medium, utilize the thrust produced of medium that valve seat 11 is separated with spheroid 10, thus the frictional force eliminated between sealing pair, this thrust is greater than the thrust for spheroid that pressure medium produces valve seat.The utility model, by utilizing the pressure of medium itself, makes valve seat depart from spheroid before opening, thus makes the moment of torsion of valve be reduced to original 5% ~ 10%, and bore is larger, the higher effect of pressure is more obvious.Make the drive unit cost of valve greatly reduce like this, reduce valve holistic cost, this advantage is at high pressure, heavy caliber and select the occasion of automatic drive particularly evident.
It should be noted last that, above embodiment is only unrestricted for illustration of the technical solution of the utility model, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in right of the present utility model.
Claims (2)
1. self-erecting type ultra-low torque fixing ball valve, it is characterized in that, comprise valve body (1), lower fixed pivot axi (2), valve gap (7), spheroid (10), valve seat (11), helical spring (15), live axle (18), upper fixed pivot axi (25), drive land (29), drive unit (30), impulse adapter (31), Output pressure adapter (32), impulse valve (33) and Decompression valves (34), pressure drainage connection (35), sealing between valve seat (11) and spheroid (10) adopts sphere to ball face sealing, by O type circle three (12) and fire proof seal circle (13) sealing between valve seat (11) and valve gap (7), by O type circle one (4) and fire prevention pad (3) sealing between lower fixed pivot axi (2) and valve body (1), by O type circle seven (24) and fire prevention pad (26) sealing between upper fixed pivot axi (25) and valve body (1), by O type circle two (5) and fire prevention pad (6) sealing between valve gap (7) and valve body (1), by O type circle eight (27) and filler (28) sealing between live axle (18) and upper fixed pivot axi (25), sealed by O type circle five (21) between sealing baffle (20) and valve gap (7), sealed by O type circle six (22) between sealing baffle (20) and valve seat (11), impulse adapter (31) connects valve gap (7) and impulse valve (33), Output pressure adapter (32) connects impulse valve (33) and valve gap (7), Output pressure adapter (32) and valve seat (11) are connected, the confined space formed between sealing baffle and valve gap is connected, Decompression valves (34) Bonding pressure discharge conection (32) and pressure drainage connection (35), valve seat (11), the sectional area of the confined space (II) formed between sealing baffle (20) and valve gap (7) is greater than the sectional area in the space (I) formed between valve seat (11) and valve gap (7).
2. self-erecting type ultra-low torque fixing ball valve according to claim 1, is characterized in that, the valve version of described ball valve adopts three-body type fixed pivot axi structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102232.8U CN204493781U (en) | 2015-02-12 | 2015-02-12 | Self-erecting type ultra-low torque fixing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102232.8U CN204493781U (en) | 2015-02-12 | 2015-02-12 | Self-erecting type ultra-low torque fixing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493781U true CN204493781U (en) | 2015-07-22 |
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ID=53573100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520102232.8U Expired - Fee Related CN204493781U (en) | 2015-02-12 | 2015-02-12 | Self-erecting type ultra-low torque fixing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577929A (en) * | 2020-04-30 | 2020-08-25 | 方正阀门集团股份有限公司 | Ball valve with DBB and DIB functions exchanged |
| CN111577930A (en) * | 2020-04-30 | 2020-08-25 | 方正阀门集团股份有限公司 | Switch sealing surface separation ball valve |
| CN112984146A (en) * | 2021-02-05 | 2021-06-18 | 陕西蓝箭航天技术有限公司 | Ball valve device for liquid rocket engine |
-
2015
- 2015-02-12 CN CN201520102232.8U patent/CN204493781U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577929A (en) * | 2020-04-30 | 2020-08-25 | 方正阀门集团股份有限公司 | Ball valve with DBB and DIB functions exchanged |
| CN111577930A (en) * | 2020-04-30 | 2020-08-25 | 方正阀门集团股份有限公司 | Switch sealing surface separation ball valve |
| CN112984146A (en) * | 2021-02-05 | 2021-06-18 | 陕西蓝箭航天技术有限公司 | Ball valve device for liquid rocket engine |
| CN112984146B (en) * | 2021-02-05 | 2023-01-13 | 陕西蓝箭航天技术有限公司 | Ball valve device for liquid rocket engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160708 Address after: Wu Anlu Zhejiang city of Lishui province Liandu District No. 22 106-2 Patentee after: Zhejiang Tiante Valve Co., Ltd. Address before: No. 376 road 323000 Zhejiang Green Valley City of Lishui province Shuige Industrial Zone Patentee before: Zhejiang Tai Te valve Co., Ltd |
|
| 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: 20150722 Termination date: 20160212 |