CN205136793U - Hyperbaric oxygen valve combined packing seal structure - Google Patents
Hyperbaric oxygen valve combined packing seal structure Download PDFInfo
- Publication number
- CN205136793U CN205136793U CN201520805798.7U CN201520805798U CN205136793U CN 205136793 U CN205136793 U CN 205136793U CN 201520805798 U CN201520805798 U CN 201520805798U CN 205136793 U CN205136793 U CN 205136793U
- Authority
- CN
- China
- Prior art keywords
- packing layer
- packing
- wedge shape
- sealing
- hyperbaric oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Details Of Valves (AREA)
- Gasket Seals (AREA)
- Lift Valve (AREA)
Abstract
本实用新型涉及一种高压氧阀组合填料密封结构，上端盖具有阶梯型通孔，阀杆滑动设置在阶梯型通孔内，阀杆从上至下依次套设有上填料层、上楔形填料层、密封垫、下楔形填料层和下填料层，下填料层设置在阶梯型通孔的阶梯面上，阀杆上还套设有用于压紧上填料层、上楔形填料层、密封垫、下楔形填料层和下填料层的压紧装置。本实用新型结构简单，采用楔形石墨填料层，并且在两楔形石墨填料层中间增加一弹性垫来增加组合填料密封结构的轴向密封力，上楔形填料层与下楔形填料层中间增设一种双唇口密封垫来增强组合填料密封结构的上下支撑力实现组合填料密封结构密封的可靠性，有效地提高了高压氧阀密封填料的密封性能及阀门阀杆运动的平稳性能。
The utility model relates to a combined packing sealing structure for a high pressure oxygen valve. The upper end cover has a stepped through hole, and the valve stem is slidably arranged in the stepped through hole. layer, sealing gasket, lower wedge-shaped packing layer and lower packing layer, the lower packing layer is set on the stepped surface of the stepped through hole, and the valve stem is also set with a set for pressing the upper packing layer, upper wedge-shaped packing layer, sealing gasket, The lower wedge-shaped packing layer and the compacting device of the lower packing layer. The utility model has a simple structure, adopts a wedge-shaped graphite packing layer, and adds an elastic pad between the two wedge-shaped graphite packing layers to increase the axial sealing force of the combined packing sealing structure, and adds a double pad between the upper wedge-shaped packing layer and the lower wedge-shaped packing layer The lip gasket is used to enhance the upper and lower support force of the combined packing sealing structure to realize the sealing reliability of the combined packing sealing structure, effectively improving the sealing performance of the high pressure oxygen valve sealing packing and the smooth performance of the valve stem movement.
Description
Technical field
The utility model relates to hyperbaric oxygen valve seal technical field, especially relates to a kind of hyperbaric oxygen valve combined packing sealing configuration.
Background technique
The flat ring type of the many employings of existing hyperbaric oxygen valve seal filler, overlapping packing seal structure.Because valve is used in hyperbaric oxygen operating mode, valve needs complete machine ungrease treatment, owing to being high pressure oxygen medium, V-type tetrafluoro filler cannot meet the use of this operating mode, therefore graphite packing or graphite packing can only be selected, because the frictional force of this type of filler is larger, hyperbaric oxygen operating mode cannot add suitable lubricant oil thus affect very large on the sealability of filler, filler increasing number affects the movement of valve rod, usually there will be creeping of valve rod, valve cannot normally be worked, I haven't seen you for ages affects the sealability of filler for filler quantity, occur that valve rod place medium leaks outside, high pressure oxygen such as leakage at the scene can cause the security incident that cannot make up.
Model utility content
The technical problems to be solved in the utility model is: in order to overcome the flat ring type of the many employings of existing hyperbaric oxygen valve seal filler, overlapping packing seal structure; filler increasing number affects the movement of valve rod; usually there will be creeping of valve rod; valve cannot normally be worked; I haven't seen you for ages affects the sealability of filler for filler quantity; occur that valve rod place medium leaks outside, high pressure oxygen such as leakage at the scene can cause the problem of the security incident that cannot make up, and provides a kind of hyperbaric oxygen valve combined packing sealing configuration.
The utility model solves the technological scheme that its technical problem adopts: a kind of hyperbaric oxygen valve combined packing sealing configuration, comprise valve rod and upper end cap, described upper end cap has ladder-type through hole, described valve stem slides is arranged in described ladder-type through hole, described valve rod is arranged with packing layer from top to bottom successively, upper wedge shape packing layer, sealing gasket, lower wedge shape packing layer and lower packing layer, described lower packing layer is arranged on the ladder surface of described ladder-type through hole, described valve rod is also arranged with for compressing upper packing layer, upper wedge shape packing layer, sealing gasket, the supported flange of lower wedge shape packing layer and lower packing layer, described supported flange is positioned at the top of described upper packing layer, described supported flange is fixedly connected with described upper end cap.
Further, described upper wedge shape packing layer and described lower wedge shape packing layer are symmetrical arranged.
Further, in order to increase the sealability of hyperbaric oxygen valve combined packing sealing configuration, described upper wedge shape packing layer and described lower wedge shape packing layer include some wedge shape graphite packing layers, in order to increase the axis sealing of hyperbaric oxygen valve combined packing sealing configuration, between adjacent two described wedge shape graphite packing layers, be provided with cushion.
Further, described wedge shape graphite packing layer comprises straight part and bending part, the sectional shape of described straight part is two symmetrical rectangles, the sectional shape of described bending part is two symmetrical parallelogram, the inner peripheral surface of described bending part and the outer peripheral surface of described straight part are fitted, and the outer peripheral surface of described bending part and the inner peripheral surface of described shoulder hole are fitted.
Further, in order to increase the sealability of hyperbaric oxygen valve combined packing sealing configuration, described straight part and described bending part are formed in one structure.
Further, in order to the support force up and down strengthening combined packing sealing configuration realizes the reliability of combined packing sealing configuration sealing, described sealing gasket is double-lip sealing gasket.
Hyperbaric oxygen valve combined packing sealing configuration of the present utility model, structure is simple, adopt wedge shape graphite packing layer, and in the middle of two wedge shape graphite packing layers, increase the axis sealing that a cushion increases combined packing sealing configuration, set up a kind of double-lip sealing gasket in the middle of upper wedge shape packing layer and lower wedge shape packing layer and realize to the support force up and down strengthening combined packing sealing configuration the reliability that combined packing sealing configuration seal, effectively improve the stationary performance that the sealability of hyperbaric oxygen valve seal filler and valve rod move.
The beneficial effects of the utility model are: hyperbaric oxygen valve combined packing sealing configuration of the present utility model, structure is simple, adopt wedge shape graphite packing layer, and in the middle of two wedge shape graphite packing layers, increase the axis sealing that a cushion increases combined packing sealing configuration, set up a kind of double-lip sealing gasket in the middle of upper wedge shape packing layer and lower wedge shape packing layer and realize to the support force up and down strengthening combined packing sealing configuration the reliability that combined packing sealing configuration seal, effectively improve the stationary performance that the sealability of hyperbaric oxygen valve seal filler and valve rod move.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is two-dimentional sectional view of the present utility model;
Fig. 2 is the two-dimentional sectional view of wedge shape graphite packing layer in the utility model;
Fig. 3 is the two-dimentional sectional view of the utility model Elastic pad;
Fig. 4 is the two-dimentional sectional view of sealing gasket in the utility model.
In figure: 1. valve rod, 2. upper end cap, 3. ladder surface, 4. go up packing layer, 5. sealing gasket, 6. descend packing layer, 7. supported flange, 8. wedge shape graphite packing layer, 9. cushion, 10. straight part, 11. bending parts.
Embodiment
The utility model is described in more detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of hyperbaric oxygen valve combined packing sealing configuration as Figure 1-4, comprise valve rod 1 and upper end cap 2, upper end cap 2 has ladder-type through hole, valve rod 1 is slidably arranged in ladder-type through hole, valve rod 1 is arranged with packing layer 4, upper wedge shape packing layer, sealing gasket 5, lower wedge shape packing layer and lower packing layer 6 from top to bottom successively, in order to the support force up and down strengthening combined packing sealing configuration realizes the reliability of combined packing sealing configuration sealing, sealing gasket 5 is double-lip sealing gasket 5.Lower packing layer 6 is arranged on the ladder surface 3 of ladder-type through hole, valve rod 1 is also arranged with the supported flange 7 for compressing upper packing layer 4, upper wedge shape packing layer, sealing gasket 5, lower wedge shape packing layer and lower packing layer 6, supported flange 7 is positioned at the top of packing layer 4, and supported flange 7 is fixedly connected with upper end cap 2.
Upper wedge shape packing layer and lower wedge shape packing layer are symmetrical arranged.In order to increase the sealability of combined packing sealing configuration, upper wedge shape packing layer and lower wedge shape packing layer include some wedge shape graphite packing layers 8, in order to increase the axis sealing of combined packing sealing configuration, between adjacent two wedge shape graphite packing layers 8, be provided with cushion 9.
Wedge shape graphite packing layer 8 comprises straight part 10 and bending part 11, the sectional shape of straight part 10 is two symmetrical rectangles, the sectional shape of bending part 11 is two symmetrical parallelogram, the inner peripheral surface of bending part 11 and the outer peripheral surface of straight part 10 are fitted, and the outer peripheral surface of bending part 11 and the inner peripheral surface of shoulder hole are fitted.In order to increase the sealability of hyperbaric oxygen valve combined packing sealing configuration, straight part 10 and bending part 11 are formed in one structure.
Hyperbaric oxygen valve combined packing sealing configuration of the present utility model, structure is simple, adopt wedge shape graphite packing layer 8, and in the middle of two wedge shape graphite packing layers 8, increase the axis sealing that a cushion 9 increases combined packing sealing configuration, set up a kind of double-lip sealing gasket 5 in the middle of upper wedge shape packing layer and lower wedge shape packing layer and realize to the support force up and down strengthening combined packing sealing configuration the reliability that combined packing sealing configuration seal, effectively improve the sealability of hyperbaric oxygen valve seal filler and the stationary performance of valve rod 1 motion.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. a hyperbaric oxygen valve combined packing sealing configuration, comprise valve rod (1) and upper end cap (2), described upper end cap (2) has ladder-type through hole, described valve rod (1) is slidably arranged in described ladder-type through hole, it is characterized in that: described valve rod (1) is arranged with packing layer (4) from top to bottom successively, upper wedge shape packing layer, sealing gasket (5), lower wedge shape packing layer and lower packing layer (6), described lower packing layer (6) is arranged on the ladder surface (3) of described ladder-type through hole, described valve rod (1) is also arranged with for compressing upper packing layer (4), upper wedge shape packing layer, sealing gasket (5), the hold down gag of lower wedge shape packing layer and lower packing layer (6).
2. hyperbaric oxygen valve combined packing sealing configuration as claimed in claim 1, it is characterized in that: described hold down gag is supported flange (7), described supported flange (7) is positioned at the top of described upper packing layer (4), and described supported flange (7) is fixedly connected with described upper end cap (2).
3. hyperbaric oxygen valve combined packing sealing configuration as claimed in claim 1, is characterized in that: described upper wedge shape packing layer and described lower wedge shape packing layer are symmetrical arranged.
4. hyperbaric oxygen valve combined packing sealing configuration as claimed in claim 1, it is characterized in that: described upper wedge shape packing layer and described lower wedge shape packing layer include some wedge shape graphite packing layers (8), between adjacent two described wedge shape graphite packing layers (8), be provided with cushion (9).
5. hyperbaric oxygen valve combined packing sealing configuration as claimed in claim 4, it is characterized in that: described wedge shape graphite packing layer (8) comprises straight part (10) and bending part (11), the sectional shape of described straight part (10) is two symmetrical rectangles, the sectional shape of described bending part (11) is two symmetrical parallelogram, the inner peripheral surface of described bending part (11) and the outer peripheral surface of described straight part (10) are fitted, and the outer peripheral surface of described bending part (11) and the inner peripheral surface of described shoulder hole are fitted.
6. hyperbaric oxygen valve combined packing sealing configuration as claimed in claim 5, is characterized in that: described straight part (10) and described bending part (11) are formed in one structure.
7. hyperbaric oxygen valve combined packing sealing configuration as claimed in claim 1, is characterized in that: described sealing gasket (5) is double-lip sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805798.7U CN205136793U (en) | 2015-10-16 | 2015-10-16 | Hyperbaric oxygen valve combined packing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805798.7U CN205136793U (en) | 2015-10-16 | 2015-10-16 | Hyperbaric oxygen valve combined packing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136793U true CN205136793U (en) | 2016-04-06 |
Family
ID=55622587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520805798.7U Expired - Lifetime CN205136793U (en) | 2015-10-16 | 2015-10-16 | Hyperbaric oxygen valve combined packing seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136793U (en) |
-
2015
- 2015-10-16 CN CN201520805798.7U patent/CN205136793U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103343835A (en) | Sealing structure of valve | |
| CN205136793U (en) | Hyperbaric oxygen valve combined packing seal structure | |
| CN202252092U (en) | Ball valve with double radial bearing valve rod | |
| CN104612620B (en) | Oil-extractor polish-rod mechanically-sealing apparatus | |
| CN204083261U (en) | A kind of single-seat adjusting valve structure | |
| CN206571643U (en) | A kind of novel reciprocating type technique compressor seal ring | |
| CN204985985U (en) | Bowl type stem seal subassembly structure with dustproof function | |
| CN108501680B (en) | Suspension liquid seal structure | |
| CN204459426U (en) | A kind of valve double-layer movable sealing configuration | |
| CN206288897U (en) | A kind of hydraulic jack piston and upper cover sealing structure | |
| CN208579024U (en) | A kind of packing seal structure of spandex production | |
| CN207161593U (en) | A kind of stronger gas spring of seal | |
| CN203880277U (en) | Novel flange gasket | |
| CN205078907U (en) | Three formula double containment ball valves | |
| CN205841816U (en) | A kind of manual platform gate valve | |
| CN204372315U (en) | Corrosion resistant type packing seal structure | |
| CN204512477U (en) | Pressure self-sealing stop valve | |
| CN204371188U (en) | Polished Rod Sealing Device | |
| CN205226434U (en) | Vice autogenous pressure sealing gate valve of double sealing | |
| CN202251939U (en) | Seal ring for high-pressure resistant fluid | |
| CN205780835U (en) | A kind of valve sealing ring of good sealing effect | |
| CN204201050U (en) | A kind of piston for cylinder | |
| CN204851849U (en) | Steam turbine high pressure governing valve servomotor hydro -cylinder uide bushing device | |
| CN201787063U (en) | Sealing ring | |
| CN203670986U (en) | Kettle bottom valve |
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: 20160406 |