CN103362782A - Compressor static sealing device - Google Patents
Compressor static sealing device Download PDFInfo
- Publication number
- CN103362782A CN103362782A CN2013103414606A CN201310341460A CN103362782A CN 103362782 A CN103362782 A CN 103362782A CN 2013103414606 A CN2013103414606 A CN 2013103414606A CN 201310341460 A CN201310341460 A CN 201310341460A CN 103362782 A CN103362782 A CN 103362782A
- Authority
- CN
- China
- Prior art keywords
- push pedal
- piston rod
- annular push
- sealing
- driving mechanism
- 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.)
- Pending
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The invention relates to the field of compressors, in particular to a compressor static sealing device which can seal the end face of a compressor padding sealing piece. According to the technical scheme, the compressor static sealing device comprises a piston rod, a sealing sleeve, a driving mechanism, an annular pushing plate and a sealing ring. The sealing sleeve is connected to the outer periphery of the piston rod in a sleeved mode. The annular pushing plate and the sealing ring are arranged between the piston rod and the sealing sleeve. The annular pushing plate and the sealing ring are both connected to the outer periphery of the piston rod in a sleeved mode. The sealing ring is placed in a sealing cone face on the annular pushing plate which slides in the axial direction of the piston rod under the effect of the driving mechanism, and a gap between the sealing ring and the piston rod is sealed through the sealing cone face. When a compressor is in halt, the annular pushing plate is pushed through the driving mechanism, and the sealing ring can seal the gap under the effect of the sealing cone face. The compressor static sealing device can be used for gas sealing after the piston type compressor is in halt.
Description
Technical field
The present invention 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 in the cylinder, and utilizes the backflow of the variation realization gas of pressure reduction in cylinder and the filler.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 in atmosphere by this part; the user is caused 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.
Summary of the invention
Technical problem to be solved by this invention provides a kind of compressor static seal that can seal the end face of compressor packing Sealing.
The technical solution adopted for the present invention to solve the technical problems is: the 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 seal ring between piston rod and the stuffing box gland, annular push pedal and seal ring all are socketed on the piston rod periphery, seal ring is positioned at the sealing cone in the annular push pedal, annular push pedal under the driving mechanism effect along piston rod axis direction slide and by sealing cone with the gap sealing between seal ring and the piston rod.
Further be, described driving mechanism is the air-inlet cavity that is made of the promotion face in the annular push pedal and the enterprising gas port of stuffing box gland inwall on every side, is filled with drive of high-pressure gas annular push pedal slip by suction port in air-inlet cavity.
Further be, be provided with elastic component between reset surface in the annular push pedal and the wall of stuffing box gland, direction and driving mechanism that described elastic component drives annular push pedal slip drive the opposite direction that annular push pedal is slided, and the driving force of elastic component is less than the driving force of driving mechanism.
Further be that described elastic component is spring.
Further be to be provided with sealing block between the wall that annular push pedal and stuffing box gland are close to mutually.
The invention has the beneficial effects as follows: this compressor static seal is installed in the end face of packing seal element, and packing seal element and the present invention all are socketed on piston rod.After the present invention has been installed, when compressor shutdown, by driving mechanism annular push pedal is promoted, and by the sealing cone in the annular push pedal with the gap sealing between seal ring and the piston rod.Because be that gap leakage by the piston rod periphery goes out during gas leakage, seal ring can well be lived gap sealing under the sealing cone effect now, thereby greatly reduces the leakage of gas in the past.In the gas seal after the present invention can be applied to piston compressor and shuts down.
Description of drawings
Fig. 1 is sectional view of the present invention.
Fig. 2 is the schematic diagram after the present invention is installed on the packing seal element end face.
Be labeled as among the figure: 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
The present invention is further described below in conjunction with accompanying drawing.
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 seal ring 3 between piston rod 5 and the stuffing box gland 6, annular push pedal 2 and seal ring 3 all are socketed on piston rod 5 peripheries, seal ring 3 is positioned at the sealing cone 23 in the annular push pedal 2, annular push pedal 2 under driving mechanism 1 effect along piston rod 5 axial directions slide and by sealing cone 23 with the gap sealing between seal ring 3 and the piston rod 5.
An end of the present invention is mounted in the end face of packing seal element 8, and the other end then is installed 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 that sealing cone 23 was with the gap sealing between seal ring 3 and the piston rod 5.The power of described driving structure 1 is provided by outside of the present invention, acts in the 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 the piston rod 5 more closely, preferably effect is so just arranged.
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 the driving force of cancellation 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 take full advantage of the pressurized gas in the compressor, can select so large scheme: described driving mechanism 1, be by the promotion face 21 in the annular push pedal 2 and the air-inlet cavity that stuffing box gland 6 enterprising gas ports 11 inwall on every side consists of, in air-inlet cavity, be filled with drive of high-pressure gas annular push pedal 2 slips by suction port 11.Driving mechanism 1 as shown in Figure 1, air-inlet cavity are positioned at promotion face 21 1 sides in the annular push pedal 2, directly high-pressure gas pressure are acted in the annular push pedal 2.Described promotion face 21 is planes in the annular push pedal 2, mainly is to allow high-pressure gas pressure better be converted into thrust and promote annular push pedal 2.
For when not having the driving of driving mechanism 1, annular push pedal 2 can be playbacked and no longer be oppressed seal ring 3, thereby prolong 3 working lifes of seal ring, can select such scheme: be provided with elastic component 4 between the reset surface 22 in the annular push pedal 2 and the wall of stuffing box gland 6, direction and driving mechanism 1 that described elastic component 4 drives annular push pedal 2 slips drive the opposite direction that annular push pedal 2 is slided, and the driving force of elastic component 4 is less than the driving force of driving mechanism 1.When needing to seal after compressor shutdown, only need apply driving force by driving mechanism 1, and the driving force of elastic component 4 is less than the driving force of driving mechanism 1, so annular push pedal 2 namely can be slided to the driving force direction, thereby realizes sealing.When not needing to seal, because the disappearance of the driving of driving mechanism 1, annular push pedal 2 can oppositely mobile and realization playback 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 with the good seal preferably of the slit between annular push pedal 2 and the stuffing box gland 6, avoid gas leakage, can between the wall that annular push pedal 2 and stuffing box gland 6 are close to mutually, sealing block 7 be set.As shown in Figure 1, sealing block 7 can seal the wall of mutually being close between annular push pedal 2 and the 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 seal ring (3) between piston rod (5) and the stuffing box gland (6), annular push pedal (2) and seal ring (3) all are socketed on piston rod (5) periphery, seal ring (3) is positioned at the sealing cone (23) in the annular push pedal (2), and annular push pedal (2) is slided and passed through sealing cone (23) with the gap sealing between seal ring (3) and the piston rod (5) along piston rod (5) axial direction driving mechanism (1) effect is lower.
2. compressor static seal as claimed in claim 1, it is characterized in that: described driving mechanism (1), be the air-inlet cavity that is consisted of by the promotion face (21) in the annular push pedal (2) and the enterprising gas port of stuffing box gland (6) (11) inwall on every side, in air-inlet cavity, be filled with drive of high-pressure gas annular push pedal (2) slip by suction port (11).
3. compressor static seal as claimed in claim 1 or 2, it is characterized in that: be provided with elastic component (4) between the reset surface (22) in the annular push pedal (2) and the wall of stuffing box gland (6), direction and driving mechanism (1) that described elastic component (4) drives annular push pedal (2) slip drive the opposite direction that annular push pedal (2) is slided, 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, it is characterized in that: described elastic component (4) is spring.
5. such as claim 1,2 or 4 described compressor static seal, it is characterized in that: be provided with sealing block (7) between the wall that annular push pedal (2) and stuffing box gland (6) are close to mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103414606A CN103362782A (en) | 2013-08-07 | 2013-08-07 | Compressor static sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103414606A CN103362782A (en) | 2013-08-07 | 2013-08-07 | Compressor static sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103362782A true CN103362782A (en) | 2013-10-23 |
Family
ID=49364857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103414606A Pending CN103362782A (en) | 2013-08-07 | 2013-08-07 | Compressor static sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103362782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003479A (en) * | 2019-12-20 | 2020-04-14 | 济南海能仪器股份有限公司 | Feeding slide block and full-automatic sample feeding device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2847236A (en) * | 1954-11-05 | 1958-08-12 | Flexible Searl Company | Wear compensating shaft seal |
| JPS5356903U (en) * | 1976-10-16 | 1978-05-16 | ||
| US4469017A (en) * | 1983-02-23 | 1984-09-04 | Dover Corporation | Static leak seal assembly for use in fluid containing machinery |
| CN2854229Y (en) * | 2005-11-21 | 2007-01-03 | 陈惠明 | Sealing device |
| DE102010033647A1 (en) * | 2010-08-06 | 2012-02-09 | Stasskol Gmbh | Device for sealing rod with respect to medium, has one-piece sealing lip with sealing surface formed on inner side of sealing lip, where piston and pressure ring have operative connection formed by coupling element |
| CN203394706U (en) * | 2013-06-21 | 2014-01-15 | 天津凯德实业有限公司 | Static sealing device |
| CN203453003U (en) * | 2013-08-07 | 2014-02-26 | 四川金星压缩机制造有限公司 | Static sealing device of compressor |
-
2013
- 2013-08-07 CN CN2013103414606A patent/CN103362782A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2847236A (en) * | 1954-11-05 | 1958-08-12 | Flexible Searl Company | Wear compensating shaft seal |
| JPS5356903U (en) * | 1976-10-16 | 1978-05-16 | ||
| US4469017A (en) * | 1983-02-23 | 1984-09-04 | Dover Corporation | Static leak seal assembly for use in fluid containing machinery |
| CN2854229Y (en) * | 2005-11-21 | 2007-01-03 | 陈惠明 | Sealing device |
| DE102010033647A1 (en) * | 2010-08-06 | 2012-02-09 | Stasskol Gmbh | Device for sealing rod with respect to medium, has one-piece sealing lip with sealing surface formed on inner side of sealing lip, where piston and pressure ring have operative connection formed by coupling element |
| CN203394706U (en) * | 2013-06-21 | 2014-01-15 | 天津凯德实业有限公司 | Static sealing device |
| CN203453003U (en) * | 2013-08-07 | 2014-02-26 | 四川金星压缩机制造有限公司 | Static sealing device of compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003479A (en) * | 2019-12-20 | 2020-04-14 | 济南海能仪器股份有限公司 | Feeding slide block and full-automatic sample feeding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203892709U (en) | Vacuum valve and vacuum pumping equipment | |
| CN105952698B (en) | A kind of solution-air pressurized cylinder | |
| CN203868219U (en) | Hydro-pneumatic spring with multiple levels of compressible piston rods | |
| CN105090159A (en) | Low-friction and quick-start hydraulic cylinder based on flutter mechanism | |
| KR20190123798A (en) | Devices and methods for actuating valves | |
| CN203453003U (en) | Static sealing device of compressor | |
| CN103362782A (en) | Compressor static sealing device | |
| CN104279338B (en) | A kind of large deformation self-compensation sealed structure | |
| CN208534896U (en) | A kind of cylinder and cylinder assembly | |
| CN201490807U (en) | Sealing device used between motor and structural component | |
| CN203686162U (en) | Novel ultrahigh vacuum valve | |
| CN103591203B (en) | Damper | |
| CN201934780U (en) | Modified filler pressing sleeve device | |
| CN101562365B (en) | Sealing device used between motor and structural component | |
| CN101956539A (en) | Follow-up centering sealing device of pumping well head | |
| CN210179002U (en) | Integrated pressure regulating stop valve | |
| CN205780033U (en) | A kind of modified model oil cylinder sealing structure | |
| CN204175696U (en) | Stepping cylinder | |
| CN207349048U (en) | The piston of air compressor | |
| CN207777616U (en) | A kind of star-like coil assembly of actuator dynamic sealing | |
| CN204985145U (en) | Pneumatic cylinder is opened soon in low friction based on mechanism of shimmying | |
| CN205806670U (en) | Inner sliding sleeve antidetonation choke valve | |
| CN218030900U (en) | Cylinder with micro valve | |
| CN203051296U (en) | Hydraulic cylinder | |
| CN203009843U (en) | Sealing mechanism for low speed rotating shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 610036 Yingbin international, No. 19, West 1st Road, Jinniu District, Sichuan, Chengdu Applicant after: Sichuan Venus clean energy equipment limited-liability company Applicant after: Sichuan Jinxing Petroleum and Chemical Machinery Equipment Co., Ltd. Applicant after: Sichuan Hengzhong Clean Energy Complete Equipment Manufacturing Co., Ltd. Address before: Jinniu District Golden Road Chengdu city Sichuan province 610036 No. 166 Applicant before: Sichuan Jinxing Compressor Manufacturing Co., Ltd. Applicant before: Sichuan Jinxing Petroleum and Chemical Machinery Equipment Co., Ltd. Applicant before: Sichuan Hengzhong Clean Energy Complete Equipment Manufacturing Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SICHUAN JINXING COMPRESSOR MANUFACTURING CO., LTD. TO: SICHUAN JINXING CLEAN ENERGY EQUIPMENT CO., LTD. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131023 |