CN201902331U - Static pressure type dry air sealing device for screw compressor - Google Patents
Static pressure type dry air sealing device for screw compressor Download PDFInfo
- Publication number
- CN201902331U CN201902331U CN2010206345686U CN201020634568U CN201902331U CN 201902331 U CN201902331 U CN 201902331U CN 2010206345686 U CN2010206345686 U CN 2010206345686U CN 201020634568 U CN201020634568 U CN 201020634568U CN 201902331 U CN201902331 U CN 201902331U
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- carbocyclic ring
- static pressure
- seal
- sealing
- pressure type
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Abstract
The utility model discloses a static pressure type dry air sealing device for a screw compressor, which comprises a front carbon ring seal, a comb tooth seal, a static pressure type dry air seal and a rear carbon ring seal. A wavy spring is connected with the front carbon ring seal in a sleeved manner and connected with a carbon ring seat. The comb tooth seal is connected with the carbon ring seat in a sleeved manner, and a pressure value reading point is disposed on the carbon ring seat. The comb tooth seal is connected onto a shaft sleeve, and the shaft sleeve is connected with a shaft. The static pressure type dry air seal is connected with the shaft, the shaft is fixedly connected with a sealing cavity, an O-shaped sealing ring is connected to the upper end of the shaft and connected with a spring, and the spring is fixedly connected with a spring seat. A primary sealing air inlet and the like are arranged on the static pressure dry air seal. The static pressure type dry air sealing device for a screw compressor has the advantages of low power consumption, long service life, high stability of process and production and the like.
Description
Technical field
The utility model relates to chemical production technical field, is specifically related to a kind of helical-lobe compressor static pressure type dry gas sealing device.
Background technique
Now, helical-lobe compressor has that the diameter of axle is big, surge pressure is big and characteristics such as explained hereafter conditional instability, and mechanical seal is adopted in former unit sealing, because serious wear, leakage rate is big, and water-tight equipment can only move 2～3 months time usually.
For solving the aforementioned problems in the prior, the utility model provides a kind of new solution.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of helical-lobe compressor static pressure type dry gas sealing device is provided, characteristics such as that this helical-lobe compressor static pressure type dry gas sealing device has is low in energy consumption, long service life and explained hereafter stability are strong, a whole set of static pressure type seal arrangement contact with seal face, makes that seal arrangement is low in energy consumption, the prolongation in working life thereby reduce friction.
To achieve the above object of the invention, the technological scheme that the utility model adopted is: a kind of helical-lobe compressor static pressure type dry gas sealing device is provided, it is characterized in that: comprise preposition carbocyclic ring sealing, labyrinth seal, static pressure type dry gas seals and the sealing of rearmounted carbocyclic ring; Described preposition carbocyclic ring stuffing box gland connects wavy spring, and wavy spring connects the carbocyclic ring seat; Described labyrinth seal interlocks the carbocyclic ring seat, establishes the pressure data point on the carbocyclic ring seat; Described labyrinth seal is connected on the axle sleeve, and axle sleeve links to each other with axle; Described static pressure type dry gas seals coupling shaft, axle is connected and fixed seal chamber, and the axle upper end connects sealing O type ring, and sealing O type ring connects spring, and spring is connected and fixed spring seat; Establish primary seal gas inlet on the described static pressure type dry gas seals; Described rearmounted carbocyclic ring sealing interlocks gland, establishes the blanket gas leakage hole between gland and the sealing of rearmounted carbocyclic ring; Described rearmounted carbocyclic ring sealing links to each other with the carbocyclic ring pressing plate, establish the secondary leakage hole in the rearmounted carbocyclic ring sealing, establish the rearmounted gas inlet of isolating on the carbocyclic ring pressing plate, described pressure data point, primary seal gas inlet, blanket gas leakage hole and the rearmounted gas inlet of isolating from left to right are connected seal chamber successively.
According to helical-lobe compressor static pressure type dry gas sealing device provided by the utility model, it is characterized in that: described static pressure type dry gas seals is a circular seal ring.
In sum, characteristics such as that this helical-lobe compressor static pressure type dry gas sealing device has is low in energy consumption, long service life and explained hereafter stability are strong, a whole set of static pressure type seal arrangement contact with seal face, makes that seal arrangement is low in energy consumption, the prolongation in working life thereby reduce friction.
Description of drawings
Fig. 1 is a helical-lobe compressor static pressure type dry gas sealing device sectional view;
Fig. 2 is the seal ring sectional view of special shape;
Wherein, 1, preposition carbocyclic ring sealing; 2, wavy spring; 3, carbocyclic ring seat; 4, labyrinth seal; 5, static pressure type dry gas seals; 6, axle sleeve; 7, sealing O type circle; 8, spring; 9, spring seat; 10, gland; 11, rearmounted carbocyclic ring sealing; 12, carbocyclic ring pressing plate; 13, axle; 14, seal chamber; 15, pressure data point; 16, primary seal gas inlet; 17, blanket gas leakage hole; 18, the rearmounted gas of isolating; 19, secondary leakage hole.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done and to be described in detail:
As shown in the figure, provide a kind of helical-lobe compressor static pressure type dry gas sealing device, it is characterized in that: comprise preposition carbocyclic ring sealing 1, labyrinth seal 4, static pressure type dry gas seals 5 and rearmounted carbocyclic ring sealing 11; Described preposition carbocyclic ring sealing 1 interlocks wavy spring 2, and wavy spring 2 connects carbocyclic ring seat 3; Described labyrinth seal 4 interlocks carbocyclic ring seat 3, establishes pressure data point 15 on the carbocyclic ring seat 3; Described labyrinth seal 4 is connected on the axle sleeve 6, and axle sleeve 6 links to each other with axle 13; Described static pressure type dry gas seals 5 coupling shafts 13, axle 13 is connected and fixed seal chamber 14, and axle 13 upper ends connect sealing O type ring 7, and sealing O type ring 7 connects spring 8, and spring 8 is connected and fixed spring seat 9; Establish primary seal gas inlet 16 on the described static pressure type dry gas seals 5; Described rearmounted carbocyclic ring sealing 11 interlocks gland 10, establishes blanket gas leakage hole 17 at gland 10 and 11 of rearmounted carbocyclic ring sealings; Described rearmounted carbocyclic ring sealing 11 links to each other with carbocyclic ring pressing plate 12, establish secondary leakage hole 19 in the rearmounted carbocyclic ring sealing 11, establish the rearmounted gas inlet 18 of isolating on carbocyclic ring pressing plate 12, described pressure data point 15, primary seal gas inlet 16, blanket gas leakage hole 17 and the rearmounted gas inlet 18 of isolating from left to right are connected seal chamber 14 successively; Described static pressure type dry gas seals 5 is circular seal rings.
Preposition carbocyclic ring sealing plays throttling action, reduces the flow of gas, increases labyrinth seal again after the carbocyclic ring sealing, with carbocyclic ring sealing acting in conjunction, reduces the influence of cavity medium pressure surge to dry gas seals.The blanket gas of dry gas seals is the nitrogen through filtering, its pressure stability, and be higher than the medium maximum pressure, make that medium can not be to external leakage.With rearmounted carbocyclic ring sealing configuration, isolate atmospheric pressure a little more than atmospheric pressure at atmospheric side, preventing that bearing oil from scurrying into influences dry gas sealing property, isolates gas and adopts nitrogen.
The utility model is not limited to above-mentioned example, in claims of the present utility model institute restricted portion, and various distortion that those skilled in the art can make without creative work or revise the protection that all is subjected to this patent.
Claims (2)
1. a helical-lobe compressor static pressure type dry gas sealing device is characterized in that: comprise preposition carbocyclic ring sealing (1), labyrinth seal (4), static pressure type dry gas seals (5) and rearmounted carbocyclic ring sealing (11); Described preposition carbocyclic ring sealing (1) interlocks wavy spring (2), and wavy spring (2) connects carbocyclic ring seat (3); Described labyrinth seal (4) interlocks carbocyclic ring seat (3), establishes pressure data point (15) on the carbocyclic ring seat (3); Described labyrinth seal (4) is connected on the axle sleeve (6), and axle sleeve (6) links to each other with axle (13); Described static pressure type dry gas seals (5) coupling shaft (13), axle (13) is connected and fixed seal chamber (14), and axle (13) upper end connects sealing O type ring (7), and sealing O type ring (7) connects spring (8), and spring (8) is connected and fixed spring seat (9); Establish primary seal gas inlet (16) on the described static pressure type dry gas seals (5); Described rearmounted carbocyclic ring sealing (11) interlocks gland (10), establishes blanket gas leakage hole (17) between gland (10) and rearmounted carbocyclic ring sealing (11); Described rearmounted carbocyclic ring sealing (11) links to each other with carbocyclic ring pressing plate (12), establish secondary leakage hole (19) in the rearmounted carbocyclic ring sealing (11), establish the rearmounted gas inlet (18) of isolating on carbocyclic ring pressing plate (12), described pressure data point (15), primary seal gas inlet (16), blanket gas leakage hole (17) and the rearmounted gas inlet (18) of isolating from left to right are connected seal chamber (14) successively.
2. helical-lobe compressor static pressure type dry gas sealing device according to claim 1 is characterized in that: described static pressure type dry gas seals (5) is a circular seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206345686U CN201902331U (en) | 2010-11-30 | 2010-11-30 | Static pressure type dry air sealing device for screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206345686U CN201902331U (en) | 2010-11-30 | 2010-11-30 | Static pressure type dry air sealing device for screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902331U true CN201902331U (en) | 2011-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206345686U Expired - Lifetime CN201902331U (en) | 2010-11-30 | 2010-11-30 | Static pressure type dry air sealing device for screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902331U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603803A (en) * | 2013-12-09 | 2014-02-26 | 济南海屹流体技术有限公司 | Water vapor screw compressor shaft seal structure |
| CN105065276A (en) * | 2015-07-22 | 2015-11-18 | 宋东方 | Combined type sealing device of dry screw vacuum pump |
| CN107237891A (en) * | 2017-08-08 | 2017-10-10 | 内蒙古鄂尔多斯联合化工有限公司 | A kind of equipment of natural gas compressor dry gas seals |
| CN109838559A (en) * | 2019-03-05 | 2019-06-04 | 浙江工业大学 | A kind of static pressure dry gas seals stationary ring of band radial direction relief valve |
-
2010
- 2010-11-30 CN CN2010206345686U patent/CN201902331U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603803A (en) * | 2013-12-09 | 2014-02-26 | 济南海屹流体技术有限公司 | Water vapor screw compressor shaft seal structure |
| CN103603803B (en) * | 2013-12-09 | 2016-03-02 | 济南海屹流体技术有限公司 | A kind of water vapor screw compressor shaft seal structure |
| CN105065276A (en) * | 2015-07-22 | 2015-11-18 | 宋东方 | Combined type sealing device of dry screw vacuum pump |
| CN107237891A (en) * | 2017-08-08 | 2017-10-10 | 内蒙古鄂尔多斯联合化工有限公司 | A kind of equipment of natural gas compressor dry gas seals |
| CN109838559A (en) * | 2019-03-05 | 2019-06-04 | 浙江工业大学 | A kind of static pressure dry gas seals stationary ring of band radial direction relief valve |
| CN109838559B (en) * | 2019-03-05 | 2024-03-29 | 浙江工业大学 | Static pressure dry gas sealing static ring with radial pressure release valve |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610100 No. 26, Xingguang West Road, Chengdu economic and Technological Development Zone, Sichuan Patentee after: CHENGDU YITONG SEAL CO., LTD. Address before: 610100 No. 26, Xingguang West Road, Chengdu economic and Technological Development Zone, Sichuan Patentee before: Chengdu Yitong Seal Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
|
| CX01 | Expiry of patent term |