CN203453003U - Static sealing device of compressor - Google Patents
Static sealing device of compressor Download PDFInfo
- Publication number
- CN203453003U CN203453003U CN201320480262.3U CN201320480262U CN203453003U CN 203453003 U CN203453003 U CN 203453003U CN 201320480262 U CN201320480262 U CN 201320480262U CN 203453003 U CN203453003 U CN 203453003U
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- CN
- China
- Prior art keywords
- push pedal
- piston rod
- annular push
- compressor
- driving mechanism
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- Expired - Fee Related
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Abstract
The utility model relates to the field of compressors, in particular to a static sealing device of a compressor. The static sealing device of the compressor can seal the end face of a filling sealing piece of the compressor. According to the technical scheme, the static sealing device of the compressor comprises a piston rod, a sealing sleeve, a driving mechanism, an annular pushing plate and a seal ring, wherein the sealing sleeve is connected to the outer circumference of the piston rod in a sleeved mode, the annular pushing plate and the seal ring are arranged between the piston rod and the sealing sleeve and are both connected to the outer circumference of the piston rod in a sleeved mode, the seal ring is located in a conical sealing surface on the annular pushing plate, and the annular pushing plate slides in the axis direction of the piston rod under the action of the driving mechanism and seals the gap between the seal ring and the piston rod through the conical sealing surface. When the compressor is stopped, the annular pushing plate is pushed through the driving mechanism, and then the gap can be sealed by the seal ring under the action of the conical sealing surface. The static sealing device can be used for gas sealing after the piston compressor is stopped.
Description
Technical field
The utility model relates to compressor field, especially a kind of compressor static seal.
Background technique
Common CNG compressor product, the packing seal mode that it adopts is movable sealing structure.The sealing principle of movable sealing structure seals for the back pressure by gas gas in the jar, and utilizes cylinder and the variation of the interior pressure reduction of filler to realize the backflow of gas.But adopt such movable sealing structure; after compressor shutdown and air inlet and final stage exhaust end ball valve are closed; the leakage point of whole compressor assembly appears at the position, end clearance of packing seal element; the gas of system can slowly leak by this part in atmosphere; user is caused to extremely unnecessary waste; therefore only have the Leakage Gas problem of the end clearance that solves packing seal element, just can avoid the loss of being correlated with.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of compressor static seal that can seal the end face of compressor packing Sealing.
The utility model solves the technological scheme that its technical problem adopts: compressor static seal, comprise piston rod, be socketed on stuffing box gland, the driving mechanism of piston rod periphery, and be arranged at annular push pedal and the seal ring between piston rod and stuffing box gland, annular push pedal and seal ring are all socketed on piston rod periphery, seal ring is positioned at the sealing cone in annular push pedal, annular push pedal under driving mechanism effect along piston rod axis direction slide and by sealing cone by the gap sealing between seal ring and piston rod.
Further, described driving mechanism, is the air-inlet cavity consisting of the promotion face in annular push pedal and the enterprising gas port of stuffing box gland inwall around, by suction port, to being filled with the push pedal of drive of high-pressure gas annular in air-inlet cavity, slides.
Be further, between reset surface in annular push pedal and the wall of stuffing box gland, be provided with elastic component, described elastic component drives the direction of annular push pedal slip and the opposite direction that driving mechanism drives annular push pedal to slide, and the driving force of elastic component is less than the driving force of driving mechanism.
Further, described elastic component is spring.
Further, between the wall that annular push pedal and stuffing box gland are close to mutually, be provided with sealing block.
The beneficial effects of the utility model are: this compressor static seal is arranged on the end face of packing seal element, and packing seal element and the utility model are all socketed on piston rod.Installed after the utility model, when compressor shutdown, by driving mechanism, annular push pedal promoted, and by the sealing cone in annular push pedal by the gap sealing between seal ring and piston rod.During due to gas leakage in the past, be that gap leakage by piston rod periphery goes out, seal ring can well be lived gap sealing under sealing cone effect now, thereby greatly reduces the leakage of gas.The utility model can be applied in the gas seal after piston compressor is shut down.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Fig. 2 is that the utility model is installed on the schematic diagram after packing seal element end face.
In figure, be labeled as: driving mechanism 1, suction port 11, annular push pedal 2, promotion face 21, reset surface 22, sealing cone 23, elastic component 4, piston rod 5, stuffing box gland 6, sealing block 7, packing seal element 8, oil duct 81.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Compressor static seal as shown in Figure 1 and Figure 2, comprise piston rod 5 and the stuffing box gland 6 that is socketed on piston rod 5 peripheries, it is characterized in that: comprise driving mechanism 1, and be arranged at annular push pedal 2 and the seal ring 3 between piston rod 5 and stuffing box gland 6, annular push pedal 2 and seal ring 3 are all socketed on piston rod 5 peripheries, seal ring 3 is positioned at the sealing cone 23 in annular push pedal 2, and annular push pedal 2 is slided and passes through sealing cone 23 by the gap sealing between seal ring 3 and piston rod 5 along piston rod 5 axial directions under driving mechanism 1 effect.
One end of the present utility model is mounted in the end face of packing seal element 8, and the other end is arranged on the cylinder of compressor.Gas leakage is the edge that occurs in piston rod 5, and the driving by driving mechanism 1 both can realize sealing cone 23 by the gap sealing between seal ring 3 and piston rod 5.The power of described driving structure 1 is provided by outside of the present utility model, acts in annular push pedal 2 and allows annular push pedal 2 slide along piston rod 5 axial directions.When practical application, need to guarantee that seal ring 3 is socketed on piston rod 5 more closely, so just has good effect.
Especially, because the driving direction of 1 pair of annular push pedal 2 of driving mechanism is unidirectional, when not needing to seal, only need to cancel the driving force of driving mechanism 1, thereby the support that annular push pedal 2 no longer includes exterior power continues to oppress seal ring 3, and this device can return to original state.
In order to make full use of the pressurized gas in compressor, can select so large scheme: described driving mechanism 1, be the air-inlet cavity being formed by the enterprising gas port 11 of the promotion face 21 in annular push pedal 2 and stuffing box gland 6 inwall around, by suction port 11, in air-inlet cavity, be filled with drive of high-pressure gas annular push pedal 2 slips.Driving mechanism 1 as shown in Figure 1, air-inlet cavity is positioned at promotion face 21 1 sides in annular push pedal 2, directly high-pressure gas pressure is acted in annular push pedal 2.Described promotion face 21 is planes in annular push pedal 2, is mainly allow high-pressure gas pressure better be converted into thrust and promote annular push pedal 2.
For when there is no the driving of driving mechanism 1, annular push pedal 2 can be playbacked and no longer oppress seal ring 3, thereby extend 3 working lifes of seal ring, can select such scheme: between the reset surface 22 in annular push pedal 2 and the wall of stuffing box gland 6, be provided with elastic component 4, described elastic component 4 drives the direction of annular push pedal 2 slips and the opposite direction that driving mechanism 1 drives annular push pedal 2 to slide, and the driving force of elastic component 4 is less than the driving force of driving mechanism 1.While needing to seal, only need apply driving force by driving mechanism 1 after compressor shutdown, and the driving force of elastic component 4 is less than the driving force of driving mechanism 1, so annular push pedal 2 can slide to driving force direction, thereby realizes sealing.When not needing to seal, due to the disappearance of the driving of driving mechanism 1, playback can be oppositely moved and be realized in annular push pedal 2 under the effect of elastic component 4.
As the improvement of such scheme, the elastic component 4 of such scheme may be selected to be spring.Spring can increase deformation power along with the increase of annular push pedal 2 strokes, finally reaches the equilibrium of forces with the driving of driving mechanism 1, is the preferred structure of elastic component 4.
For by the good good seal in gap between annular push pedal 2 and stuffing box gland 6, avoid gas leakage, between the wall that can mutually be close at annular push pedal 2 and stuffing box gland 6, sealing block 7 is set.As shown in Figure 1, sealing block 7 can seal the wall of being mutually close between annular push pedal 2 and stuffing box gland 6 fully, improves sealing effect.
Claims (5)
1. compressor static seal, comprise piston rod (5) and be socketed on the stuffing box gland (6) of piston rod (5) periphery, it is characterized in that: comprise driving mechanism (1), and be arranged at annular push pedal (2) and the seal ring (3) between piston rod (5) and stuffing box gland (6), annular push pedal (2) and seal ring (3) are all socketed on piston rod (5) periphery, seal ring (3) is positioned at the sealing cone (23) in annular push pedal (2), annular push pedal (2) is slided and passes through sealing cone (23) by the gap sealing between seal ring (3) and piston rod (5) along piston rod (5) axial direction under driving mechanism (1) effect.
2. compressor static seal as claimed in claim 1, it is characterized in that: described driving mechanism (1), be the air-inlet cavity being formed by the promotion face (21) in annular push pedal (2) and the enterprising gas port of stuffing box gland (6) (11) inwall around, by suction port (11), in air-inlet cavity, be filled with drive of high-pressure gas annular push pedal (2) slip.
3. compressor static seal as claimed in claim 1 or 2, it is characterized in that: between the reset surface (22) in annular push pedal (2) and the wall of stuffing box gland (6), be provided with elastic component (4), described elastic component (4) drives the direction of annular push pedal (2) slip and the opposite direction that driving mechanism (1) drives annular push pedal (2) to slide, and the driving force of elastic component (4) is less than the driving force of driving mechanism (1).
4. compressor static seal as claimed in claim 3, is characterized in that: described elastic component (4) is spring.
5. the compressor static seal as described in claim 1,2 or 4, is characterized in that: between the wall that annular push pedal (2) and stuffing box gland (6) are close to mutually, be provided with sealing block (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480262.3U CN203453003U (en) | 2013-08-07 | 2013-08-07 | Static sealing device of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480262.3U CN203453003U (en) | 2013-08-07 | 2013-08-07 | Static sealing device of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453003U true CN203453003U (en) | 2014-02-26 |
Family
ID=50132885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320480262.3U Expired - Fee Related CN203453003U (en) | 2013-08-07 | 2013-08-07 | Static sealing device of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362782A (en) * | 2013-08-07 | 2013-10-23 | 四川金星压缩机制造有限公司 | Compressor static sealing device |
-
2013
- 2013-08-07 CN CN201320480262.3U patent/CN203453003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362782A (en) * | 2013-08-07 | 2013-10-23 | 四川金星压缩机制造有限公司 | Compressor static sealing device |
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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: SICHUAN JINXING CLEAN ENERGY EQUIPMENT CO., LTD. Free format text: FORMER NAME: SICHUAN JINXING COMPRESSOR MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 610036 Yingbin international, No. 19, West 1st Road, Jinniu District, Sichuan, Chengdu Patentee after: Sichuan Venus clean energy equipment limited-liability company Patentee after: Sichuan Jinxing Petroleum and Chemical Machinery Equipment Co., Ltd. Patentee after: Sichuan Hengzhong Clean Energy Complete Equipment Manufacturing Co., Ltd. Address before: Jinniu District Golden Road Chengdu city Sichuan province 610036 No. 166 Patentee before: Sichuan Jinxing Compressor Manufacturing Co., Ltd. Patentee before: Sichuan Jinxing Petroleum and Chemical Machinery Equipment Co., Ltd. Patentee before: Sichuan Hengzhong Clean Energy Complete Equipment Manufacturing 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: 20140226 Termination date: 20180807 |