CN204372166U - Double-screw compressor mechanical seal device - Google Patents
Double-screw compressor mechanical seal device Download PDFInfo
- Publication number
- CN204372166U CN204372166U CN201420858128.7U CN201420858128U CN204372166U CN 204372166 U CN204372166 U CN 204372166U CN 201420858128 U CN201420858128 U CN 201420858128U CN 204372166 U CN204372166 U CN 204372166U
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- ring
- mechanical seal
- rotating ring
- double
- face
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- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
Double-screw compressor mechanical seal device.Former contacting mechanical seal entirety is the mechanical seal of many spring balancings type.Rotating ring adopts mosaic structure, and stationary ring is SiC, and auxiliary seal ring is neoprene.By analyzing the contacting mechanical seal end face of former dismounting, finding that rotating ring end face exists heavy wear, integrated deflection, there is very dark polishing scratch in stationary ring end face.The wearing and tearing of seal face must cause face leakage serious.A kind of double-screw compressor mechanical seal device, its composition comprises: spring seat (1), described spring seat inside is provided with spring (2), described spring is connected with throw-out collar (3), described throw-out collar is connected with rotating ring (6), be connected with rotating ring O type circle (4) in the middle of described rotating ring bottom and double-screw compressor, described rotating ring right part is connected with stationary ring (8), and described stationary ring top is connected with stationary ring O shape circle (7).The utility model is applied to seal arrangement.
Description
technical field:
the utility model relates to a kind of double-screw compressor mechanical seal device.
background technique:
former contacting mechanical seal entirety is the mechanical seal of many spring balancings type.Rotating ring adopts mosaic structure, and stationary ring is SiC, and auxiliary seal ring is neoprene.The sealing principle of contacting mechanical seal is: by fluid-encapsulated there is the prerequisite of pressure difference (being generally that pressure is higher than ambient pressure) with the external world under, reduced by fluid-encapsulated leakage to try one's best by the axial clearance (fitting tightly, big spring specific pressure) reduced as far as possible between sealing friction pair end face.As can be seen here, there is following subject matter in contacting mechanical seal:
(1) how high the machining accuracy no matter sealing dynamic and static ring end face is, because surface roughness makes it must have a micro-gap between the two.Therefore, contacting mechanical seal is difficult to realize by fluid-encapsulated zero leakage.
between sealing friction pair end face, direct solid friction wearing and tearing must make local temperature raise, and make the physical property generation change in various degree of the process fluid of surrounding environment, as vaporization, coking etc., affect the quality of handicraft product equally to a certain extent.
sharply temperature rise between seal face also can make the mechanical property of sealing material reduce, and easily makes that seal ring (hard ring) produces hot tearing, auxiliary seal ring produces heat and to rise etc. and to make sealing early failue.
by analyzing the contacting mechanical seal end face of former dismounting, finding that rotating ring end face exists heavy wear, integrated deflection, there is very dark polishing scratch in stationary ring end face.The wearing and tearing of seal face must cause face leakage serious.Meanwhile, contacting mechanical seal end-face friction can produce amount of heat, causes certain influence to auxiliary seal ring sealability, and auxiliary seal ring leaks can cause oil leak equally.
model utility content:
the purpose of this utility model is to provide a kind of double-screw compressor mechanical seal device.
above-mentioned object is realized by following technological scheme:
a kind of double-screw compressor mechanical seal device, its composition comprises: spring seat, described spring seat inside is provided with spring, described spring is connected with throw-out collar, described throw-out collar is connected with rotating ring, be connected with rotating ring O type circle in the middle of described rotating ring bottom and double-screw compressor, described rotating ring right part is connected with stationary ring, and described stationary ring top is connected with stationary ring O shape circle.
described double-screw compressor mechanical seal device, described stationary ring seal with O ring is in gland and described stationary ring, and described spring seat and described rotating ring jointing place are connected with snap ring, and described gland top is processed with through hole.
the beneficial effects of the utility model:
1. the utility model upstream pumping seal rotating ring or stationary ring end face output micron order chute (as spiral chute) usually, the main dependence end face hydrodynamic effect produced that relatively operates forms hydrodynamic pressure and carrys out balance closure power between both ends of the surface, realize seal face non-contact running, thus reduce end face frictional wear.Meanwhile, spiral fluted pumping effect can make the liquid reversing that high pressure side is leaked go back to high pressure side, thus realizes the zero leakage of oil sealing.
its main feature of the utility model is; under at " pumping groove ", counterclockwise groove realizes leak free prerequisite; " downstream pumping groove " clockwise direction groove pumps into seal face the clean oil sealing of trace; micro circulation is formed with oil film face; in time the butadiene autopolymer formed under end face particle or specific condition is cleaned out; avoid it to accumulate in seal face and block dynamic pressure groove, there is unique " self-cleaning function.
the utility model upstream pumping seal is applied to compressor erection drawing.Sealing configuration is substantially identical with original sealing, thus avoids the larger change of unit, reduces transformation risk, has saved improvement expenses.Unlike, novel seal rotating ring adopts overall high-strength graphite.
the utility model thoroughly solves former sealing frequent failure, cause the problem of a large amount of material damage and environmental pollution, achieve zero leakage even zero spilling of sealing medium, eliminate environmental pollution, for enterprise has saved a large amount of spare part and maintenance expenses, create good economic benefits and social benefit simultaneously.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
embodiment:
embodiment 1:
a kind of double-screw compressor mechanical seal device, its composition comprises: spring seat 1, described spring seat inside is provided with spring 2, described spring is connected with throw-out collar 3, described throw-out collar is connected with rotating ring 6, be connected with rotating ring O type circle 4 in the middle of described rotating ring bottom and double-screw compressor, described rotating ring right part is connected with stationary ring 8, and described stationary ring top is connected with stationary ring O shape circle 7.
embodiment 2:
double-screw compressor mechanical seal device according to embodiment 1, described stationary ring seal with O ring is in gland 9 with described stationary ring, and described spring seat and described rotating ring jointing place are connected with snap ring 5, and described gland top is processed with through hole.
Claims (2)
1. a double-screw compressor mechanical seal device, its composition comprises: spring seat, it is characterized in that: described spring seat inside is provided with spring, described spring is connected with throw-out collar, described throw-out collar is connected with rotating ring, be connected with rotating ring O type circle in the middle of described rotating ring bottom and double-screw compressor, described rotating ring right part is connected with stationary ring, and described stationary ring top is connected with stationary ring O shape circle.
2. double-screw compressor mechanical seal device according to claim 1, it is characterized in that: described stationary ring seal with O ring is in gland and described stationary ring, described spring seat and described rotating ring jointing place are connected with snap ring, and described gland top is processed with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858128.7U CN204372166U (en) | 2014-12-30 | 2014-12-30 | Double-screw compressor mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858128.7U CN204372166U (en) | 2014-12-30 | 2014-12-30 | Double-screw compressor mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372166U true CN204372166U (en) | 2015-06-03 |
Family
ID=53328388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420858128.7U Expired - Fee Related CN204372166U (en) | 2014-12-30 | 2014-12-30 | Double-screw compressor mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372166U (en) |
-
2014
- 2014-12-30 CN CN201420858128.7U patent/CN204372166U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |