CN203098925U - Pressure-balanced type cock plug valve - Google Patents
Pressure-balanced type cock plug valve Download PDFInfo
- Publication number
- CN203098925U CN203098925U CN 201320034720 CN201320034720U CN203098925U CN 203098925 U CN203098925 U CN 203098925U CN 201320034720 CN201320034720 CN 201320034720 CN 201320034720 U CN201320034720 U CN 201320034720U CN 203098925 U CN203098925 U CN 203098925U
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- cock
- valve
- valve body
- periphery
- pressure balance
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Abstract
The utility model discloses a pressure-balanced type cock plug valve, and relates to the technical field of flow controlling. The pressure-balanced type cock plug valve aims to solve the technical problems that an existing pressure-balanced plug valve is prone to being clamped, big in vibration, too large in driving torque, low in reliability and short in service life, sealing filling materials are prone to leaking and the like. A plurality of cock longitudinal sealing grooves (22) are formed in the periphery of the conic face of the cock (8), a cock annular sealing groove (21) is formed in the periphery of the bottom of the cock (8), and the cock (8) is connected with a valve rod (1) through a connecting block (13); valve body annular sealing grooves (12) are respectively formed in the inner cavity wall of a valve body (3) corresponding to the cock annular sealing groove at the bottom of the cock (8) and the top of the cock (8); a grease injection valve one (10) and a grease injection valve two (20) arranged in the perpendicular direction are arranged on the upper cavity of the valve body (3); and a check valve (9) is arranged on the upper portion of the cock (8).
Description
Technical field
The utility model patent relates to the fluid control technology field, particularly a kind of pressure balance type stopcock that is used for oilfield exploitation, conveying, concise, petrochemical industry, chemical industry, coal gas, rock gas, liquefied petroleum gas (LPG), HVAC industry etc.
Background technique
Stopcock is to use a kind of valve the earliest, and it has characteristics such as simple in structure, easy to operate, that switch is rapid, fluid resistance is little.For its main technical standards of pipeline stopcock is API6D standard " oil and natural gas industrial pipeline transporting system pipeline valve ", API599 standard " flange end, threaded end and welding ends metal stopcock " and the GB/T 22130 " steel stopcock " that American Petroleum Institute issues.The stopcock of natural gas line and station control system use at present all adopts upside-down mounting balanced type oil seal stopcock, existing pressure balance type stopcock technology develops through introduction innovation for many years, great advance has been arranged, but still there are some technological deficiencies, mainly show high temperature, high pressure, heavy caliber field, existing pressure balance type stopcock ubiquity is stuck, vibration, problems such as driving moment is excessive, reliability is low, the life-span is short, stuffing box packing leakiness.
Summary of the invention
The utility model be intended to solve existing pressure balance type stopcock exist easily stuck, vibration is big, technical problems such as driving moment is excessive, reliability is low, the life-span is short, stuffing box packing leakiness, has to provide a kind of that flow resistance is little, switch is rapid, the life-span is long, safe and reliable, structural stability, sealability is reliable, Installation and Debugging are convenient, driving moment is little and the pressure balance type stopcock that adapts to different working condition requirements.
The purpose of this utility model is achieved through the following technical solutions.
Pressure balance type stopcock of the present utility model, the conical surface periphery of cock 8 are provided with several cock longitudinal sealing grooves 22, and the bottom periphery of cock 8 is provided with cock hoop seal groove 21, and cock 8 is connected with valve rod 1 by contiguous block 13; Cock hoop seal groove 21 and cock 8 tops corresponding to cock 8 bottoms are respectively equipped with valve body annular seal groove 12 on the internal chamber wall of valve body 3; The epicoele of valve body 3 is provided with grease pouring valve 1 and the grease pouring valve 2 20 that Vertical direction is arranged; The top of cock 8 is provided with safety check 9.
Pressure balance type stopcock of the present utility model, the bottom periphery of wherein said valve rod 1 is socketed with bearing 4, and bearing 4 is located between the internal surface of the bottom of valve rod 1 and valve body 3 epicoeles.
Pressure balance type stopcock of the present utility model, valve rod 1 periphery of wherein said bearing 4 tops are provided with O shape circle 2, and valve rod 1 periphery between O shape circle 2 and the valve top part end cap lower end surface is filled with filler 11.
Pressure balance type stopcock of the present utility model, wherein said cock 8 underparts are provided with the location taper hole, and the location taper hole cooperates with the positioning ball 7 of its below and joins, and positioning ball 7 is located on the supporting base 6, and supporting base 6 is located at the valve bottom head cover.
Pressure balance type stopcock of the present utility model is provided with dunnage 15 between wherein said valve bottom head covers and the valve body, and the lower surface of the top of adjusting screw 16 and dunnage 15 joins.
The beneficial effect of the utility model pressure balance type stopcock: flow resistance is little, switch is rapid, and the life-span is long, safe and reliable, structural stability, advantages such as sealability is reliable, Installation and Debugging are convenient, driving moment is little can satisfy the requirement of different operating modes such as high temperature, low temperature.
Description of drawings
Fig. 1 the utility model perspective view one
Fig. 2 the utility model body cavity perspective view
Fig. 3 the utility model perspective view two
The cock perspective view of Fig. 4 the utility model
Fig. 5 the utility model perspective view three
Fig. 6 the utility model supporting base perspective view
The number in the figure explanation:
1 valve rod, 2 O shapes circle, 3 valve bodies, 4 bearings, 5 passages, 6 supporting bases, 7 positioning balls, 8 cocks, 9 safety check, 10 grease pouring valves one, 11 fillers, 12 valve body annular seal grooves, 13 contiguous blocks, 14 valve bodies, 15 dunnages, 16 adjusting screw, 20 grease pouring valves two, 21 cock hoop seal grooves, 22 cock longitudinal sealing grooves
Embodiment
The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1-6, are illustrated by following mode of execution.
As accompanying drawing 1-6, pressure balance type stopcock of the present utility model, the conical surface periphery of cock 8 is provided with several cock longitudinal sealing grooves 22, and the bottom periphery of cock 8 is provided with cock hoop seal groove 21, and cock 8 is connected with valve rod 1 by contiguous block 13; Cock hoop seal groove 21 and cock 8 tops corresponding to cock 8 bottoms are respectively equipped with valve body annular seal groove 12 on the internal chamber wall of valve body 3; The epicoele of valve body 3 is provided with grease pouring valve 1 and the grease pouring valve 2 20 that Vertical direction is arranged; The top of cock 8 is provided with safety check 9.The bottom periphery of valve rod 1 is socketed with bearing 4, and bearing 4 is located between the internal surface of the bottom of valve rod 1 and valve body 3 epicoeles.Valve rod 1 periphery of bearing 4 tops is provided with O shape circle 2, and valve rod 1 periphery between O shape circle 2 and the valve top part end cap lower end surface is filled with filler 11.Cock 8 underparts are provided with the location taper hole, and the location taper hole cooperates with the positioning ball 7 of its below and joins, and positioning ball 7 is located on the supporting base 6, and supporting base 6 is located at the valve bottom head cover.Be provided with dunnage 15 between valve bottom head covers and the valve body, the lower surface of the top of adjusting screw 16 and dunnage 15 joins.
Pressure balance type stopcock of the present utility model is by conical surface seal, and sealing contact surface is big, and film lubrication also seals.The seal groove of body cavity adopts the grease groove structure, the seal groove of cock 8 peripheries adopts asymmetric grease trench design, then formed the flow cycle of unobstructed packing grease so at valve internal, seal grease is evenly coated on the sealing surface when rotating cock 8, the effectively lubricating sealing surface, automatically filling does not have leakage, guarantees that fully oil film is complete, sealing is reliable.Simultaneously, asymmetrical trench design oil consumption loss is little, the filling time and the life cycle that have prolonged grease.Two way sealed is reliable, long service life.Simultaneously because of the filling occupy-place of seal grease and the wiping action in the switching process, solid particulate matter contained in the medium can not enter in the sealing pair, and can prevent fully when standard-sized sheet and the contacting of flowing medium, and effectively protects sealing pair.
The valve bottom head cover is equipped with to regulate and supports, and utilizes positioning ball 7 can adjust the position of cock 8.The location taper hole of positioning ball 7 and cock 8 lower ends all passes through special processing (taper hole pile-up welding hard alloy, positioning ball 7 are alloy material and handle through laser hardening), has guaranteed the working life of valve.Under worst hot case, the thermal expansion of cock 8 can absorb by regulating supporting elevation, avoids the sealing pair wedge dead.The position structure of positioning ball 7 and cock has fully guaranteed the perfection applying of cock 8 with the valve body conical surface, has effectively realized sealing, has reduced the operational torque of valve simultaneously.
Pressure balance type stopcock of the present utility model utilizes drive unit that valve rod 1 is revolved and turn 90 degrees when concrete the use, by contiguous block 13 passway in the cock 8 is switched on or switched off with the passway on the valve body, realization valve opening or close.The valve body outside is provided with the seal grease injection device, by grease pouring valve 1 and grease pouring valve 2 20, seal grease can be injected into the valve body epicoele; The grease grease groove by cock 8, valve body surface under the pressure medium effect under injection pressure and the working state that injects evenly spreads upon on the sealing surface, forms fine and close oil lamella and realizes the valve two way sealed and play the lubrication and seal face.
The mounting type of the cock of pressure balance type stopcock is upside-down mounting.The bottom of cock 8 has through-flow aperture, makes pipeline medium can enter cock bottom, when valve opening and when not closing fully, and the pressure medium balance of the pressure of valve body cavity of resorption and pipeline, cock 8 is tried hard to recommend the moving valve body inverted cone surface that descends upwards to be close in bottom dielectric; The top of cock 8 is provided with safety check 9, and safety check 9 ends when the greasing pressure on valve pocket top is higher than pipe medium pressure, and pipeline medium enters the valve body epicoele to replenish grease pressure by safety check 9 when the grease pressure on valve pocket top is lower than pressure medium.The medium thrust that cock 8 simultaneously makes progress with cock 8 bottoms under epicoele grease pressure and cock 8 self-gravity actions keeps balance, the sealing surface of cock body and valve can better be sealed, can alleviate the seal pressure of sealing surface greatly, reduce valve operation moment, prolong valve working life.
Claims (5)
1. pressure balance type stopcock, it is characterized in that: the conical surface periphery of cock (8) is provided with several cock longitudinal sealing grooves (22), the bottom periphery of cock (8) is provided with cock hoop seal groove (21), and cock (8) is connected with valve rod (1) by contiguous block (13); Corresponding to the cock hoop seal groove (21) of cock (8) bottom, valve body (3) internal chamber wall corresponding position is provided with a valve body annular seal groove (12); Corresponding to cock (8) top, valve body (3) internal chamber wall corresponding position is provided with another valve body annular seal groove; The epicoele of valve body (3) is provided with grease pouring valve one (10) and the grease pouring valve two (20) that Vertical direction is arranged; The top of cock (8) is provided with safety check (9).
2. pressure balance type stopcock according to claim 1 is characterized in that: the bottom periphery of described valve rod (1) is socketed with bearing (4), and bearing (4) is located between the internal surface of the bottom of valve rod (1) and valve body (3) epicoele.
3. pressure balance type stopcock according to claim 2, it is characterized in that: valve rod (1) periphery of described bearing (4) top is provided with O shape circle (2), and valve rod (1) periphery between O shape circle (2) and the valve top part end cap lower end surface is filled with filler (11).
4. pressure balance type stopcock according to claim 1, it is characterized in that: described cock (8) underpart is provided with the location taper hole, the location taper hole cooperates with the positioning ball (7) of its below and joins, positioning ball (7) is located on the supporting base (6), and supporting base (6) is located at the valve bottom head cover.
5. pressure balance type stopcock according to claim 4 is characterized in that: be provided with dunnage (15) between described valve bottom head covers and the valve body, the lower surface of the top of adjusting screw (16) and dunnage (15) joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034720 CN203098925U (en) | 2013-01-23 | 2013-01-23 | Pressure-balanced type cock plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034720 CN203098925U (en) | 2013-01-23 | 2013-01-23 | Pressure-balanced type cock plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098925U true CN203098925U (en) | 2013-07-31 |
Family
ID=48850330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320034720 Expired - Lifetime CN203098925U (en) | 2013-01-23 | 2013-01-23 | Pressure-balanced type cock plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108771771A (en) * | 2018-04-13 | 2018-11-09 | 中国人民解放军陆军军医大学第附属医院 | Suction device for taking injection of breast material |
| CN114857344A (en) * | 2022-05-27 | 2022-08-05 | 烟台杰瑞石油装备技术有限公司 | Grease injection method and grease injection equipment |
-
2013
- 2013-01-23 CN CN 201320034720 patent/CN203098925U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108771771A (en) * | 2018-04-13 | 2018-11-09 | 中国人民解放军陆军军医大学第附属医院 | Suction device for taking injection of breast material |
| CN114857344A (en) * | 2022-05-27 | 2022-08-05 | 烟台杰瑞石油装备技术有限公司 | Grease injection method and grease injection equipment |
| CN114857344B (en) * | 2022-05-27 | 2024-11-05 | 烟台杰瑞石油装备技术有限公司 | Fat injection method and fat injection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |