CN206145173U - Oil film seal structure of valve and valve thereof - Google Patents
Oil film seal structure of valve and valve thereof Download PDFInfo
- Publication number
- CN206145173U CN206145173U CN201621131607.4U CN201621131607U CN206145173U CN 206145173 U CN206145173 U CN 206145173U CN 201621131607 U CN201621131607 U CN 201621131607U CN 206145173 U CN206145173 U CN 206145173U
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- Prior art keywords
- valve
- sealing
- mastic
- oil film
- barrel
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Abstract
The utility model discloses an oil film seal structure of valve, it leaves the clearance including installing disk seat on the valve body, set up the spool face that corresponds with the disk seat in the valve body between disk seat and the spool face, and it has sealed lotion to pack in this clearance, and the sealer position forms sealed of oil film form between disk seat and spool face. The disk seat is equipped with the holding tank towards the terminal surface of spool face, the sealed lotion of packing in the holding tank. Be equipped with feedstock channel on the disk seat, feedstock channel's entry end extends to the sealed lotion feed inlet department of valve body, feedstock channel's exit end and holding tank UNICOM. The utility model has the advantages of the seal is good, stand wear and tear, stable performance and long service life.
Description
Technical field
This utility model belongs to valve technology field, especially a kind of to be applied to float ball valve, Fixed ball valve, butterfly
The oil film seal structure of the series such as valve, knife gate valve and regulating valve.
Background technology
Valve is the control unit in fluid delivery system, with functions such as cut-off, regulation, water conservancy diversion, shunting, pressure releases.Valve
Door is widely used in oil, natural gas, mining, petrochemical industry, electric power and smelts in the fields such as production.Valve knot of the prior art
Structure generally includes valve body, and valve body is provided with fluid passage, and the valve core structure of blocking or channeling fluid break-make, valve are provided with fluid passage
Cored structure is connected with operating mechanism by valve shaft, opens or closes valve core structure by driving operating mechanism, valve core structure
There is between surface and fluid passage inwall sealing structure, the sealing structure generally includes valve seat and sealing member, squeezes by valve seat
Laminate seal causes valve core structure to keep being tightly connected state with fluid passage.As above-mentioned sealing structure is by extruding formation
Closely sealing coordinates, and the sealing surface between valve seat and valve core structure can be caused to cause surface abrasion because extruding scraping, valve is reduced
Body service life；And it is laborious due to operating when above-mentioned sealing structure causes valve body to be turned on and off.Additionally, for some need
For the equipment to be produced under the use environments such as High Temperature High Pressure more exacting terms, common sealing ring sealing cannot
Meet demand.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provide a kind of good leak tightness, wear-resistant, stable performance and
The oil film seal structure of the valve of long service life.
To achieve these goals, the technical solution adopted in the utility model is：A kind of oil film seal structure of valve, bag
Include be installed on valve body valve seat, be arranged at spool face corresponding with valve seat in valve body, it is characterised in that：Valve seat and spool table
Gap is left between face, filled with sealing mastic in the gap, sealing compound body is located at and oil film is formed between valve seat and spool face
Shape sealing surface.
In said structure, sealed by the sealing mastic of certain viscosity between valve seat and valve element, replaced prior art
In hard sealing, not only have the advantages that good seal performance, without abrasion, and open moment of torsion it is little, open operation it is more laborsaving.
Further, the valve seat is provided with holding tank towards the end face of spool face, fills sealing compound in the holding tank
Body.
In said structure, the valve seat is used to fill sealing mastic by holding tank, can be disposable filling, or
Persistence is filled.
Further, the valve seat is provided with feeding-passage, and the arrival end of feeding-passage extends to the sealing mastic of valve body
At charging aperture, the port of export and the holding tank UNICOM of feeding-passage.
In said structure, valve seat can be continuously replenished the sealing mastic in holding tank by feeding-passage.
Utility model purpose two：This utility model additionally provides a kind of valve with oil film seal structure, including valve body,
Fluid passage is provided with valve body, the valve element of on or off fluid passage in fluid passage, is provided with, is additionally provided with valve body and valve element
The valve seat that is tightly connected of formation, by valve shaft attended operation mechanism, valve body is provided with valve road be adapted to valve shaft to valve element, valve shaft and
It is tightly connected between valve road, it is characterised in that：Gap is left between valve seat and spool face, sealing compound in the gap, is filled with
Body, sealing compound body are located between valve seat and spool face and form oil film shape sealing surface.
In said structure, the valve sealed using oil film shape sealing surface, its good seal performance are little to valve wear,
And valve seal performance will not can be just reduced with use time with persistence supplement sealing mastic.
Further, the valve seat is provided with holding tank towards the end face of spool face, fills sealing compound in the holding tank
Body.
In said structure, valve seat fills sealing mastic by holding tank.
Further, the valve seat is provided with feeding-passage, and valve body is provided with valve base sealing mastic charging aperture, feeding-passage
Arrival end extend at valve base sealing mastic charging aperture, the port of export of feeding-passage and the holding tank UNICOM.
In said structure, valve seat supplements sealing mastic by feeding-passage, can be entered by external feeding machanism persistence
Material keeps lasting seals state.
Further, sealing compound body feeding is additionally provided with the valve body, the sealing compound body feeding includes sealing
Mastic barrel, sealing mastic barrel includes that sealing mastic barrel is additionally provided with and material for supplying to seal the barrel inner chamber that mastic is accommodated
The charge door and discharging opening of tube inner chamber UNICOM, seals and is also equipped with mastic barrel so that the sealing mastic in barrel inner chamber keeps
Stress and with the driving structure being inclined to towards discharging opening constant flow, discharging opening Jing valve base sealing mastic feed pipes and the valve seat
The charging aperture connection of sealing mastic, is provided with check-valves on valve base sealing mastic feed pipe.
In said structure, the sealing mastic between valve seat and valve element is persistently supplemented close by sealing compound body feeding
Envelope mastic keeps good seal performance between the two.
Further, the driving structure constitutes the pressure that sealing coordinates with barrel inner chamber in including being installed on barrel inner chamber
Extrusion spring is installed between cavity wall in plate, pressure plare and barrel, the resilient force of extrusion spring is on pressure plare and bullet
Property power driving pressure plate promote the sealing mastic in barrel inner chamber to flow towards discharging opening direction.
Driving structure on sealing mastic barrel can keep squeezed state to make which to sealing mastic by extrusion spring
Persistently discharging keeps the good seal performance between valve seat and valve element, above-mentioned extrusion spring be provided in barrel inner chamber,
One end is connected with barrel inner chamber bottom surface, and one end is connected with pressure plare, pressure plare is down pull-shaped into extruding by spring tension,
Extrusion spring can be arranged on the outside of barrel inner chamber, extrusion spring one end is connected with pressure plare, the extrusion spring other end with
Barrel roof connects, and pressure plare is extruded toward discharging opening direction by the elasticity of elongation power of extrusion spring, keeps sealing compound
The lasting feed of body.
Further, the driving structure includes the barrel for having sealing mastic, and the segmentation of barrel Jing pistons is in air cavity and storage
Material chamber, storage cavity are provided with binder spring respectively positioned at the both sides of air cavity in air cavity, binder spring one end is connected with air cavity piston
Connect, the binder spring other end is connected with storage cavity piston, the storage cavity and discharging opening UNICOM, air cavity is connected with source of the gas.
In said structure, the driving structure is, by pneumatic actuation, to coordinate realization to be turned on and off with cylinder operation mechanism
While valve, keep barrel sealing mastic persistently to be provided for storage cavity, in working order, persistently keep good sealing
Energy.
Further, the valve shaft is arranged with away material bushing, walks to expect that liner outer wall offers away hopper, it is described walk hopper with
Space filling sealing mastic between valve road inwall.
In said structure, also by sealing mastic sealing between valve shaft and valve road, and carried out to walking to expect bushing by gland
Extruding avoids leakage.
Using such scheme, sealing property of the present utility model can be kept for a long time, and encapsulant constantly can add, and
The sealing mastic is little to valve damage, can greatly improve valve service life, additionally, can also adopt between valve shaft and valve road
Sealing mastic is sealed, and the sealing structure can reach zero leakage standard, and can reach long-term zero leakage, and be easy to valve
Door operation so as to open torsion and substantially reduce, if used on ball valve, the torsion of valve reduces by 1/2 ~ 2/3.
Below in conjunction with the accompanying drawings this utility model is further described.
Description of the drawings
Accompanying drawing 1 is this utility model specific embodiment structural front view；
Accompanying drawing 2 is this utility model specific embodiment structure rearview；
Partial sectional view of the accompanying drawing 3 for this utility model specific embodiment structural front view；
Accompanying drawing 4 is this utility model specific embodiment structural side view；
B-B sectional view of the accompanying drawing 5 for this utility model specific embodiment Fig. 4；
Accompanying drawing 6 is A1 schematic enlarged-scale views in this utility model specific embodiment accompanying drawing 5；
Accompanying drawing 7 is A2 schematic enlarged-scale views in this utility model specific embodiment accompanying drawing 5；
Accompanying drawing 8 is A3 schematic enlarged-scale views in this utility model specific embodiment accompanying drawing 5；
Structural representation of the accompanying drawing 9 for this utility model specific embodiment butterfly valve；
Structural representation of the accompanying drawing 10 for this utility model specific embodiment knife gate valve；
Structural representation of the accompanying drawing 11 for this utility model specific embodiment regulating valve；
Structural representation of the accompanying drawing 12 for this utility model specific embodiment gate valve；
Valve body 1, fluid passage 11, step 111, valve base sealing mastic charging aperture 12, valve road 13, valve element 2, valve seat 3, storage
Groove 31, feeding-passage 32, breach 33, chamfering 34, annular wall 35, valve shaft 4, walk to expect bushing 41, walk hopper 411, valve shaft sealing compound
Body feed pipe 42, gland 43, large sealing packing ring 44, small sealing ring 45,
Operating mechanism 5, cylinder 51, gas source pipe 52, fast-discharge valve 53,
Sealing compound body feeding, sealing mastic barrel 6, air cavity 61, storage cavity 62, binder spring 64, air cavity piston 65,
Storage cavity piston 66, observation window 67, valve base sealing mastic feed pipe 68, three way cock 7, check-valves 8.
Specific embodiment
Specific embodiment of the utility model is the valve with oil film seal structure as shown in figs. 1-12, including valve body 1,
Fluid passage 11 is provided with valve body 1, the valve element 2 of on or off fluid passage 11 is provided with fluid passage 11, is also set in valve body 1
Have and the valve seat 3 being tightly connected is formed with valve element 2, by 4 attended operation mechanism 5 of valve shaft, valve body 1 is provided with suitable with valve shaft 4 to valve element 2
The valve road 13 matched somebody with somebody, is tightly connected between valve shaft 4 and valve road 13, and valve seat 3 and valve element leave gap between 2 surface, fill out in the gap
Filled with sealing mastic, the sealing mastic can be the oils and fatss or ointment of certain viscosity, and sealing compound body is positioned at 2 table of valve seat 3 and valve element
Oil film shape sealing surface is formed between face.Oil film seal structure in this utility model is applied to ball valve, butterfly valve, knife gate valve and tune
Section valve, with reference to Fig. 6-9；Below by taking ball valve as an example, illustrate.
It is connected and sealed by large sealing packing ring 44 between valve seat 3 and valve body 1, valve seat 3 is extended with away from one end of valve element 2
Annular wall 35, is provided with the step 111 coordinated with the annular wall 35 in valve body 1, annular wall 35 is held on step 111 and by little
Sealing ring 45 forms sealing and coordinates, and valve seat 3 is provided with holding tank 31 towards the end face on 2 surface of valve element, filling sealing in holding tank 31
Mastic.Valve seat 3 is provided with feeding-passage 32, and valve body 1 is provided with the sealing mastic of valve seat 3 charging aperture 12, the entrance of feeding-passage 32
End is extended at the sealing mastic of valve seat 3 charging aperture 12, the port of export and 31 UNICOM of holding tank of feeding-passage 32.Feeding-passage 32 is in
Skewed setting, downward-sloping towards the port of export by arrival end, valve seat 3 is provided with breach near the side of 32 arrival end of feeding-passage
33, breach 33 is connected by 34 transition of chamfering with 32 arrival end inwall of feeding-passage.
Sealing compound body feeding is additionally provided with above-mentioned valve body 1, the sealing compound body feeding includes sealing mastic barrel
6, sealing mastic barrel 6 includes that sealing mastic barrel 6 is additionally provided with and barrel inner chamber for supplying to seal the barrel inner chamber that mastic is accommodated
The charge door and discharging opening of UNICOM, is additionally provided with observation window 67, is also equipped with making on sealing mastic barrel 6 on sealing mastic barrel 6
The sealing mastic obtained in barrel inner chamber keeps stress and with the driving structure being inclined to towards discharging opening constant flow, discharging opening Jing valves
Seat sealing mastic feed pipe 68 is connected with the sealing mastic of valve seat 3 charging aperture 12, and valve base sealing mastic feed pipe 68 is by with only
The three way cock 7 for returning valve 8 is connected with the sealing mastic of valve seat 3 charging aperture 12.
Above-mentioned driving structure can be simple structure, as follows, it include being installed in barrel inner chamber with barrel inner chamber
The pressure plare that sealing coordinates is constituted, extrusion spring, the elastic force of extrusion spring are installed between cavity wall in pressure plare and barrel
Act on pressure plare and the sealing mastic in elastic force driving pressure plate promotion barrel inner chamber flows towards discharging opening direction.
Above-mentioned driving structure can also be another kind of structure, as shown in figure 3, its structure includes the material for having sealing mastic
Cylinder, the segmentation of barrel Jing pistons are in air cavity 61 and storage cavity 62, and storage cavity 62 is positioned at 61 both sides of air cavity respectively valve seat 3 and valve shaft 4
Sealing mastic is provided, binder spring 64 is installed in air cavity 61,64 one end of binder spring is connected with air cavity piston 65, binder spring
64 other ends are connected with storage cavity piston 66, storage cavity 62 and discharging opening UNICOM, and air cavity 61 is connected with source of the gas.In the present embodiment
Operating mechanism 5 is pneumatic actuator, and the pneumatic actuator includes cylinder 51, by gear assembly and valve shaft 4 in cylinder 51
Formation is connected, and cylinder 51 passes through gas source pipe 52 and fast-discharge valve 53 is connected with air cavity 61.
Above-mentioned valve shaft 4 is arranged with away material bushing 41, walks to expect that bushing 41 is provided with gland 43, walks to expect that 41 outer wall of bushing is offered
Hopper 411 is walked, the space filling sealing mastic between 13 inwall of hopper 411 and valve road is walked, valve body 1 is provided with and walks hopper 411
The sealing mastic charging aperture of valve shaft 4 of UNICOM, the sealing mastic of valve shaft 4 charging aperture are then sealed mastic feed pipe 42 and are deposited by valve shaft
There is the barrel connection of sealing mastic.
This utility model is not limited to above-mentioned specific embodiment, and persons skilled in the art are public according to this utility model
The content opened, can implement of the present utility model using other various specific embodiments, or every employing this utility model
Design structure and thinking, do simple change or change, both fall within protection domain of the present utility model.
Claims (10)
1. the oil film seal structure of a kind of valve, including the valve seat being installed on valve body, be arranged at it is corresponding with valve seat in valve body
Spool face, it is characterised in that：Gap is left between valve seat and spool face, filled with sealing mastic, sealing compound in the gap
Body is located between valve seat and spool face and forms oil film shape sealing surface.
2. the oil film seal structure of valve according to claim 1, it is characterised in that：The valve seat is towards spool face
End face is provided with holding tank, filling sealing mastic in the holding tank.
3. the oil film seal structure of valve according to claim 2, it is characterised in that：It is logical that the valve seat is provided with charging
Road, the arrival end of feeding-passage are extended at the sealing mastic charging aperture of valve body, the port of export and the holding tank UNICOM of feeding-passage.
4. a kind of valve with oil film seal structure, including valve body, is provided with fluid passage in valve body, be provided with and lead in fluid passage
Valve element that is logical or cutting off fluid passage, is additionally provided with valve body and the valve seat being tightly connected is formed with valve element, and valve element is connected by valve shaft
Operating mechanism, valve body are provided with the valve road being adapted to valve shaft, are tightly connected between valve shaft and valve road, it is characterised in that：Valve seat with
Gap is left between spool face, filled with sealing mastic in the gap, sealing compound body is located at shape between valve seat and spool face
Into oil film shape sealing surface.
5. the valve with oil film seal structure according to claim 4, it is characterised in that：The valve seat is towards spool table
The end face in face is provided with holding tank, filling sealing mastic in the holding tank.
6. the valve with oil film seal structure according to claim 5, it is characterised in that：The valve seat is provided with charging
Passage, valve body are provided with valve base sealing mastic charging aperture, and the arrival end of feeding-passage is extended at valve base sealing mastic charging aperture,
The port of export of feeding-passage and the holding tank UNICOM.
7. the valve with oil film seal structure according to claim 6, it is characterised in that：It is additionally provided with the valve body close
Envelope mastic feedway, the sealing compound body feeding include sealing mastic barrel, and sealing mastic barrel is included for supplying sealing
The barrel inner chamber that mastic is accommodated, sealing mastic barrel are additionally provided with charge door and discharging opening with barrel inner chamber UNICOM, seal mastic
It is also equipped with barrel so that the sealing mastic in barrel inner chamber keeps stress and with the drive being inclined to towards discharging opening constant flow
Dynamic structure, discharging opening Jing valve base sealing mastic feed pipes are connected with the valve base sealing mastic charging aperture, and valve base sealing mastic enters
Check-valves are installed in expects pipe.
8. the valve with oil film seal structure according to claim 7, it is characterised in that：The driving structure includes peace
Pressure plare that sealing coordinate is constituted with barrel inner chamber loaded in barrel inner chamber, be provided between cavity wall in pressure plare and barrel crowded
Pressing spring, the resilient force of extrusion spring is on pressure plare and elastic force driving pressure plate promotes the sealing compound in barrel inner chamber
Body flows towards discharging opening direction.
9. the valve with oil film seal structure according to claim 7, it is characterised in that：The driving structure includes depositing
There is the barrel of sealing mastic, the segmentation of barrel Jing pistons is in air cavity and storage cavity, and storage cavity is located at the both sides of air cavity respectively, in air cavity
Binder spring is installed, binder spring one end is connected with air cavity piston, and the binder spring other end is connected with storage cavity piston, described
Storage cavity and discharging opening UNICOM, air cavity are connected with source of the gas.
10. the valve with oil film seal structure according to claim 4-9 any one, it is characterised in that：The valve
Axle sleeve is provided with away material bushing, walks to expect that liner outer wall offers away hopper, it is described walk space filling between hopper and valve road inwall
Sealing mastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131607.4U CN206145173U (en) | 2016-10-17 | 2016-10-17 | Oil film seal structure of valve and valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621131607.4U CN206145173U (en) | 2016-10-17 | 2016-10-17 | Oil film seal structure of valve and valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206145173U true CN206145173U (en) | 2017-05-03 |
Family
ID=58623411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621131607.4U Expired - Fee Related CN206145173U (en) | 2016-10-17 | 2016-10-17 | Oil film seal structure of valve and valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206145173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439085A (en) * | 2016-10-17 | 2017-02-22 | 温州太科阀门科技有限公司 | Valve oil film sealing structure and valve with oil film sealing structure |
-
2016
- 2016-10-17 CN CN201621131607.4U patent/CN206145173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439085A (en) * | 2016-10-17 | 2017-02-22 | 温州太科阀门科技有限公司 | Valve oil film sealing structure and valve with oil film sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170503 Termination date: 20201017 |