CN208123033U - A kind of piston compressor high-pressure gas seal device - Google Patents
A kind of piston compressor high-pressure gas seal device Download PDFInfo
- Publication number
- CN208123033U CN208123033U CN201820427393.8U CN201820427393U CN208123033U CN 208123033 U CN208123033 U CN 208123033U CN 201820427393 U CN201820427393 U CN 201820427393U CN 208123033 U CN208123033 U CN 208123033U
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- China
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- piston
- stuffing
- ring
- cylinder seat
- pressure gas
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Abstract
The utility model relates to a kind of sealing structures, especially a kind of piston compressor high-pressure gas seal device, including cylinder, combination valve, cylinder head, piston, stuffing-box cylinder seat and filler, combination valve is set to the interface of cylinder head and cylinder, the lower end of piston is arranged in stuffing-box cylinder seat, filler is mounted in the cavity of stuffing-box cylinder seat, guide sleeve is equipped between the bottom and piston of the stuffing-box cylinder seat, restrictor ring is equipped at the top of the cavity of stuffing-box cylinder seat between piston, scraper ring is equipped between the cavity bottom and piston of stuffing-box cylinder seat；Sealing bowl, choking coil and the support ring being arranged in pairs and sealing ring are successively arranged between filler and piston from top to bottom.The utility model is simple and reliable for structure, easy to maintenance, favorable sealing property；High pressure gas decompression step by step alleviates the pressure of filler in cylinder, extends the service life of sealed letter inner seal ring.
Description
Technical field
The utility model relates to a kind of sealing structures, and in particular to a kind of piston compressor is filled with high-pressure gas seal
It sets, specifically a kind of combination sealing arrangement of high pressure gas.
Background technique
With the continuous development of science and technology, higher want is proposed in pressure demand of certain industries to compressed gas
It asks.The sealing structure of existing compressor can not meet the seal request to high pressure gas, cause leaking for compressor gas,
The service life for affecting related components, reduces compressor efficiency.
Summary of the invention
The utility model aims to solve the problem that the above problem, provides a kind of piston compressor high-pressure gas seal device, energy
The leakage of high pressure gas is effectively reduced, compressor operational efficiency is improved.
Technical solution according to the present utility model, piston compressor high-pressure gas seal device, including cylinder,
Combination valve, cylinder head, piston, stuffing-box cylinder seat and filler, combination valve are set to the interface of cylinder head and cylinder, filler
The lower end of piston is arranged in letter cylinder seat, and filler is mounted in the cavity of stuffing-box cylinder seat, the bottom of the stuffing-box cylinder seat and work
It is equipped with guide sleeve between plug, is equipped with restrictor ring, the cavity bottom of stuffing-box cylinder seat between piston at the top of the cavity of stuffing-box cylinder seat
Scraper ring is equipped between portion and piston；Sealing bowl, choking coil are successively arranged between filler and piston from top to bottom and is set in pairs
The support ring and sealing ring set；Sealing ring is equipped between filler and scraper ring and stuffing-box cylinder seat.
The periphery upper end of the piston is equipped with multiple first maze troughs.
First maze trough is 8.
The inner wall of the restrictor ring is equipped with the second maze trough.
The sealing ring and support ring are arranged in pairs, and set spaced three pairs from top to bottom.
The sealing bowl uses soft fluoroplastics material.
The utility model beneficial effect is：It is simple and reliable for structure, it is easy to maintenance；Rationally design the first maze trough on piston
Size and arrangement quantity, make high pressure gas decompression step by step, mitigate the pressure of filler in cylinder, extend sealed letter inner seal ring
Service life；Using combined labyrinth and carbon gland, that is, pass through the restrictor ring in the first maze trough being arranged on piston and stuffing-box cylinder seat
The interaction of second maze trough plays the role of untouchable sealing gas, while passing through the multiple-sealed ring in stuffing-box cylinder seat
Effect, plays the role of contact sealing gas, favorable sealing property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Description of symbols：1- cylinder head, 2- combination valve, 3- cylinder, 4- piston, the first maze trough of 41-, 5- stuffing-box
Cylinder seat, 6- restrictor ring, 7- sealing ring, 8- sealing bowl, 9- choking coil, 10- sealing ring, 11- support ring, 12- scraper ring, 13- are led
To set.
Specific embodiment
The utility model is described in further detail with attached drawing combined with specific embodiments below.
As shown, the utility model piston compressor high-pressure gas seal device, including cylinder 3, combination valve
2, cylinder head 1, piston 4, stuffing-box cylinder seat 5 and filler, combination valve 2 are set to the interface of cylinder head 1 Yu cylinder 3, filler
5 sets of the letter cylinder seat lower ends in piston 4, filler are filled in the cavity of stuffing-box cylinder seat 5.Bottom and work in stuffing-box cylinder seat 5
It is equipped with guide sleeve 13 between plug 4, is equipped with restrictor ring 6 between piston 4 at the top of the cavity of stuffing-box cylinder seat 5, stuffing-box cylinder seat 5
Scraper ring 12 is equipped between cavity bottom and piston 4；Sealing bowl 8, choking coil are successively arranged between filler and piston 4 from top to bottom
9 and the support ring 11 and sealing ring 10 that are arranged in pairs；Sealing ring is equipped between filler and scraper ring 12 and stuffing-box cylinder seat 5
7.Specifically, sealing ring 10 and support ring 11 can set spaced three pairs from top to bottom, scraper ring 12 can be setting up and down
Two, sealing bowl 8 can use soft fluoroplastics material.
The periphery upper end of piston 4 be equipped with multiple first maze troughs 41, the width of the first maze trough 41 and depth with
And the distance between adjacent first maze trough 41 is related to the size of pressure at expulsion and capacity, makes high pressure gas decompression step by step,
Mitigate the pressure of filler in cylinder, extends the service life of sealed letter inner seal ring.In the embodiment shown in the drawings, the first labyrinth
Slot 41 is 8.It is provided with the second maze trough on the inner wall of restrictor ring 6, further decreases each road pressure of gas.
Working principle：Piston 4 does reciprocating linear motion in cylinder 3, the gas compression of lower pressure at high pressure gas
It is discharged afterwards by combination valve 2, sealing structure includes that untouchable sealing and contact seal two kinds, and high pressure gas passes through work
Labyrinth seal groove and the sealing ring 7 of stuffing-box cylinder seat 5, sealing bowl 8,10 seals high pressure gas of sealing ring on plug 4.
Untouchable sealing is to process several the first maze trough in 4 periphery of piston, according to pressure at expulsion and capacity
Size arrange the first maze trough between gauge and single first maze trough width and depth；According to piston 4 and cylinder 3
Lubricating status when material property and actual work temperature, work chooses fit clearance between the two, so that piston 4 is completed just
Normal gas compression processes reduce the gas pressure that leaks out in gap by several labyrinth annular groove, realize estimated close
Seal effect；The second maze trough is also equipped on restrictor ring 6, when piston 4 move back and forth when, can further by labyrinth throttling work
With reduction each road pressure of gas.
Contact sealing is gas of the sealing by residual leakage after the first maze trough, is throttled seal by restrictor ring 6 first, then
The flexible material sealing bowl 8 and sealing ring 10 that multiple tracks is arranged in bottom and piston is held tightly.Sealing ring 7 prevents gas from stuffing-box cylinder seat
5 External leakages.Scraper ring 12 removes lubricating oil extra on piston and brings cylinder into, and makes have certain oil mass guarantee close on piston
The lubrication for sealing bowl 8 and sealing ring 10, prolongs the service life.
Claims (6)
1. a kind of piston compressor high-pressure gas seal device, including cylinder（3）, combination valve（2）, cylinder head（1）, it is living
Plug（4）, stuffing-box cylinder seat（5）And filler, combination valve（2）It is set to cylinder head（1）With cylinder（3）Interface, stuffing-box
Cylinder seat（5）It is arranged in piston（4）Lower end, filler is mounted on stuffing-box cylinder seat（5）Cavity in, which is characterized in that it is described to fill out
Expect letter cylinder seat（5）Bottom and piston（4）Between be equipped with guide sleeve（13）, stuffing-box cylinder seat（5）Cavity at the top of and piston（4）
Between be equipped with restrictor ring（6）, stuffing-box cylinder seat（5）Cavity bottom and piston（4）Between be equipped with scraper ring（12）；Filler and work
Plug（4）Between be successively arranged sealing bowl from top to bottom（8）, choking coil（9）And the support ring being arranged in pairs（11）And sealing ring
（10）；Filler and scraper ring（12）With stuffing-box cylinder seat（5）Between be equipped with sealing ring（7）.
2. piston compressor according to claim 1 high-pressure gas seal device, which is characterized in that the piston
（4）Periphery upper end be equipped with multiple first maze troughs（41）.
3. piston compressor according to claim 2 high-pressure gas seal device, which is characterized in that first fan
Palace slot（41）It is 8.
4. piston compressor according to claim 1 to 3 high-pressure gas seal device, which is characterized in that described
Restrictor ring（6）Inner wall be equipped with the second maze trough.
5. piston compressor according to claim 1 high-pressure gas seal device, which is characterized in that the sealing ring
（10）And support ring（11）Spaced three pairs are set from top to bottom.
6. piston compressor according to claim 1 high-pressure gas seal device, which is characterized in that the sealing bowl
（8）Using soft fluoroplastics material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820427393.8U CN208123033U (en) | 2018-03-27 | 2018-03-27 | A kind of piston compressor high-pressure gas seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820427393.8U CN208123033U (en) | 2018-03-27 | 2018-03-27 | A kind of piston compressor high-pressure gas seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208123033U true CN208123033U (en) | 2018-11-20 |
Family
ID=64193974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820427393.8U Active CN208123033U (en) | 2018-03-27 | 2018-03-27 | A kind of piston compressor high-pressure gas seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208123033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412736A (en) * | 2018-03-27 | 2018-08-17 | 江苏神剑机电科技有限公司 | A kind of piston compressor high-pressure gas seal device |
-
2018
- 2018-03-27 CN CN201820427393.8U patent/CN208123033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412736A (en) * | 2018-03-27 | 2018-08-17 | 江苏神剑机电科技有限公司 | A kind of piston compressor high-pressure gas seal device |
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