CN107237891A - A kind of equipment of natural gas compressor dry gas seals - Google Patents
A kind of equipment of natural gas compressor dry gas seals Download PDFInfo
- Publication number
- CN107237891A CN107237891A CN201710670809.9A CN201710670809A CN107237891A CN 107237891 A CN107237891 A CN 107237891A CN 201710670809 A CN201710670809 A CN 201710670809A CN 107237891 A CN107237891 A CN 107237891A
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- CN
- China
- Prior art keywords
- dry gas
- gas
- sealing device
- equipment
- sealing
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of equipment of natural gas compressor dry gas seals, including dry gas sealing device, sound ring assemblies, anti-drive end and drive end, the dry gas sealing device two ends are provided with anti-drive end and drive end, multiple sound ring assemblies are provided with the outside of dry gas sealing device, dynamic and static ring component internal is provided with preceding sealing and rear sealing, outlet is drained provided with one-level in the dry gas sealing device top, two grades of excretion outlets, first conduit and torch, the dry gas sealing device bottom is provided with buffering gas import, blanket gas import, isolate gas import and the second conduit, first conduit is provided with the first filter.A kind of equipment of natural gas compressor dry gas seals of the present invention, by being provided with sound ring assemblies on the outside of dry gas sealing device, rotating ring uses SiC material, and the material has case hardness height, anti-wear performance is good, the coefficient of heat conduction is big, proportion is small, and then can improve the service life of dry gas sealing device.
Description
Technical field
The present invention relates to dry gas seals equipment technical field, specially a kind of equipment of natural gas compressor dry gas seals.
Background technology
102J natural gas compressor units primitive axis envelope uses differential ring mechanical seal, and the sealing belongs to the one of mechanical seal
Class, is contact seal.Its initial design is to allow for applied to the mechanical seal on high speed centrifugation compressor due to end face
Linear velocity is very high, and quick abrasion, the life-span is low, therefore, the sealing ring floated in the dynamic and static interannular setting one of common mechanical seal-poor
Rotating ring, to reduce the linear velocity of rubbing surface, so as to reduce the requirement to the wearability and frictional behaviour of friction pair material, reaches and prolongs
The purpose of long sealing service life.Differential ring sealing structure is simple, and service life is relatively long, thus within one period from
Using relatively broad on heart compressor.But the sealing leak amount is larger, performance is not sufficiently stable, and seals EFM Electronic Fuel Management
Complexity, once occur technological fluctuation, it is easy to cause a large amount of Seal Oils toward compressor casing internal leakage, greatly influence compressor
Behavior in service, causes the destruction to technique, or even cause compressor to stop.To improve the reliable of 102J natural gas compressors operation
Property and stability, it is ensured that the long-term operation of unit and device, improve device operation level and economic benefit, therefore, having must
The unit axle envelope is transformed using current Sealing Technology-dry gas seals technology advanced in the world, so as to solve puzzlement
The axle envelope problem of high speed centrifugation compressor long-term operation so that sealing service life and reliability are all greatly improved.
The content of the invention
It is an object of the invention to provide a kind of equipment of natural gas compressor dry gas seals, lacked with solving existing technology
Fall into and inaccessiable technical requirements.
To achieve the above object, the present invention provides following technical scheme：A kind of equipment of natural gas compressor dry gas seals,
Including dry gas sealing device, sound ring assemblies, anti-drive end and drive end, the dry gas sealing device two ends are provided with anti-drive end
And drive end, dry gas sealing device outside is provided with multiple sound ring assemblies, and dynamic and static ring component internal is provided with preceding sealing and seals afterwards,
Outlet, the first conduit and torch, the dry gas seals are drained provided with one-level excretion outlet, two grades in the dry gas sealing device top
Device bottom is provided with first provided with the import of buffering gas, blanket gas import, isolation gas import and the second conduit, first conduit
Filter, the one-level excretion outlet, two grades of excretions export gentle qi of chong channel ascending adversely import, blanket gas import, isolation gas import and sound
Ring assemblies are fixedly connected, the first conduit two ends by screw thread with have one-level excretion outlet and torch be detachably connected, it is described
Second conduit is provided with the second filter.
It is preferred that, it is described before be provided with stationary ring and rotating ring in sealing, rotating ring is provided with dynamic pressure groove, stationary ring by dynamic pressure groove with it is dynamic
Ring is connected.
It is preferred that, the preceding sealing and rear sealing are connected in series with each other, and are provided with process gas, rear sealing and are set in preceding sealing
There is nitrogen.
It is preferred that, first filter and the second filter are connected in parallel with each other, the first filter and the second filter
Inside is provided with pressure difference high level alarm.
It is preferred that, second conduit and natural gas line, draw nitrogen pipeline, outside source nitrogen and external meters wind disk outside
Connection.
Compared with prior art, beneficial effects of the present invention are as follows：
1. compared with a kind of equipment of traditional natural gas compressor dry gas seals, a kind of natural gas compressor after improvement
The rotating ring end face in sound ring assemblies in the equipment of dry gas seals is provided with dynamic pressure groove, and dynamic pressure groove is T-slot, can both be produced
Preferable dynamic pressure effect, is adapted to rotating, driving and parking or manual operation can be avoided to cause compressor reverse rotation and make again
Into dry gas seals heavy wear, rotating ring uses SiC material, and the material has that case hardness is high, anti-wear performance is good, heat transfer system
Number is big, proportion is small, and then can improve the service life of dry gas sealing device.
2. compared with a kind of equipment of traditional natural gas compressor dry gas seals, a kind of natural gas compressor after improvement
Most pressure of technique are born in sealing before the equipment of dry gas seals, and sealing medium is process gas, and very little is born in rear sealing
Pressure, sealing medium is nitrogen, during preceding seal failure after sealing can bear whole system pressures, play the work of backup seal
With.Under normal circumstances, the blanket gas used during dry gas seals normal work is the natural gas from compressor outlet, and isolation gas is
Nitrogen.When compressor is not driven, nitrogen is pressurized to more than 1.2MPa with booster pump to seal.
3. compared with a kind of equipment of traditional natural gas compressor dry gas seals, a kind of natural gas compressor after improvement
The control of the equipment dry gas sealing device blanket gas of dry gas seals uses pressure difference control mode.The method controlled using pressure difference is most straight
Effect is connected to, automaticity is high., can be without considering the big of compressor internal comb seal clearance when operation pressure fluctuation is larger
Small, pneumatic control valve can be always ensured that blanket gas keeps the pressure difference of setting with balance pipe, so as to prevent cylinder in-vivo medium anti-channeling
Into dry gas seals.
Brief description of the drawings
Fig. 1 is a kind of equipment natural gas dry gas sealing structure schematic diagram of natural gas compressor dry gas seals of the invention；
Fig. 2 is a kind of equipment natural gas compressor dry gas seals control system of natural gas compressor dry gas seals of the invention
Structural representation.
In figure：Sealed after 1- dry gas sealing devices, 2- sound ring assemblies, 3- anti-drive ends, 4- drive ends, 5-, it is close before 6-
Envelope, 7- stationary rings, 8- one-levels excretion outlet, bis- grades of excretion outlets of 9-, 10- rotating rings, 11- buffering gas imports, 12- blanket gas imports,
13- isolates gas import, 14- conduits, the filters of 15- first, the filters of 16- second, 17- torches.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：A kind of equipment of natural gas compressor dry gas seals, bag
Dry gas sealing device 1, sound ring assemblies 2, anti-drive end 3 and drive end 4 are included, the two ends of dry gas sealing device 1 are driven provided with non-
Moved end 3 and drive end 4, the outside of dry gas sealing device 1 are provided with multiple sound ring assemblies 2, and the inside of sound ring assemblies 2 is provided with preceding sealing
5 and rear sealing 5, the top of dry gas sealing device 1 is provided with one-level excretion outlet 8, two grades of excretion outlet and of the 9, first conduit 14
Torch 18, the bottom of dry gas sealing device 1 is provided with buffering gas import 11, blanket gas import 12, isolation gas import 13 and second
Conduit 16, first conduit 14 is provided with the first filter 15, the one-level excretion outlet 8, two grades of excretion outlets 9 and buffering
Gas import 11, blanket gas import 12, isolation gas import 13 are fixedly connected with sound ring assemblies 2, and the two ends of the first conduit 14 lead to
Screw thread is crossed with having one-level excretion outlet 8 and torch 18 to be detachably connected, second conduit 16 is provided with the second filter 17.
Stationary ring 7 and rotating ring 10 are provided with preceding sealing 5, rotating ring 10 is provided with dynamic pressure groove, and stationary ring 7 passes through dynamic pressure groove and rotating ring 10
It is connected, rotating ring 10 uses SiC material, the material has that case hardness is high, anti-wear performance is good, the coefficient of heat conduction is big, can
The obvious service life for improving sound ring assemblies 2.
Preceding sealing 5 and rear sealing 6 are connected in series with each other, and are provided with preceding sealing 5 in process gas, rear sealing 6 and are provided with nitrogen,
Sealing 6 can bear whole system pressures after when current sealing 5 is failed, and play a part of backup seal.
First filter 15 and the second filter 17 are connected in parallel with each other, inside the first filter 15 and the second filter 17
Provided with pressure difference high level alarm, prevent the granule medium in processing medium from scurrying into dry gas sealing device 1 and causing seal failure.
Second conduit 16 draws nitrogen pipeline, outside source nitrogen and external meters wind disk with natural gas line, outside and is connected, and is dry
Gas sealing mechanism 1 provides source of the gas.
A kind of equipment dry gas sealing device 1 of natural gas compressor dry gas seals of the present invention is by preceding sealing 5 and rear sealing 6 one
It is composed in series after previous, most pressure of technique are born in preceding sealing 5, and sealing medium is process gas；Sealing 6 is born very afterwards
Small pressure, sealing medium nitrogen.Sealing can bear whole system pressures after when preceding sealing 5 is failed, and play backup seal
Effect.The working gas of preceding sealing 5 of Series Connection Type Dry Gas is the process gas by filtering, by prime dry gas seals, only
There is very micro process gas to export 8 rows to torch 18 through one-level excretion；The extremely micro process gas that sealing 6 is leaked out afterwards
Discharged with isolating gas through two grades of excretion outlets 9.The dynamic pressure groove processing of Series Connection Type Dry Gas is on the end face of rotating ring 10, and rotating ring 10 is adopted
With SiC material, the service life of dry gas sealing device 1 can be significantly improved.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of equipment of natural gas compressor dry gas seals, including dry gas sealing device (1), sound ring assemblies (2), non-driven
Hold (3) and drive end (4), it is characterised in that：Dry gas sealing device (1) two ends are provided with anti-drive end (3) and drive end
(4), be provided with the outside of dry gas sealing device (1) inside multiple sound ring assemblies (2), sound ring assemblies (2) provided with preceding sealing (5) and
(5) are sealed afterwards, dry gas sealing device (1) top is provided with one-level excretion outlet (8), two grades of excretion outlets (9), first conduits
(14) and torch (18), dry gas sealing device (1) bottom is provided with buffering gas import (11), blanket gas import (12), isolation
Gas import (13) and the second conduit (16), first conduit (14) are provided with the first filter (15), and the one-level is excreted
Mouth (8), the gentle qi of chong channel ascending adversely import (11) of two grades of excretion outlets (9), blanket gas import (12), isolation gas import (13) and sound ring group
Part (2) is fixedly connected, and the first conduit (14) two ends are by screw thread and have one-level excretion outlet (8) and torch (18) detachable
Connection, second conduit (16) is provided with the second filter (17).
2. a kind of equipment of natural gas compressor dry gas seals according to claim 1, it is characterised in that：Sealed before described
(5) stationary ring (7) and rotating ring (10) are provided with, rotating ring (10) is provided with dynamic pressure groove, and stationary ring (7) is matched somebody with somebody by dynamic pressure groove with rotating ring (10)
Close connection.
3. a kind of equipment of natural gas compressor dry gas seals according to claim 1, it is characterised in that：Sealed before described
(5) it is connected in series with each other with rear sealing (6), is provided with preceding sealing (5) in process gas, rear sealing (6) and is provided with nitrogen.
4. a kind of equipment of natural gas compressor dry gas seals according to claim 1, it is characterised in that：First mistake
Filter (15) and the second filter (17) are connected in parallel with each other, provided with pressure inside the first filter (15) and the second filter (17)
Poor high level alarm.
5. a kind of equipment of natural gas compressor dry gas seals according to claim 1, it is characterised in that：Described second leads
Pipe (16) draws nitrogen pipeline, outside source nitrogen and external meters wind disk with natural gas line, outside and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670809.9A CN107237891A (en) | 2017-08-08 | 2017-08-08 | A kind of equipment of natural gas compressor dry gas seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670809.9A CN107237891A (en) | 2017-08-08 | 2017-08-08 | A kind of equipment of natural gas compressor dry gas seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107237891A true CN107237891A (en) | 2017-10-10 |
Family
ID=59988728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710670809.9A Pending CN107237891A (en) | 2017-08-08 | 2017-08-08 | A kind of equipment of natural gas compressor dry gas seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237891A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499108A (en) * | 2003-10-09 | 2004-05-26 | 天津新技术产业园区鼎名密封有限公司 | General layout of dry type gas lock system |
| CN201650839U (en) * | 2010-02-02 | 2010-11-24 | 成都一通密封有限公司 | Dry-gas seal of cracked gas compressor |
| CN201902332U (en) * | 2010-11-30 | 2011-07-20 | 成都一通密封有限公司 | Dry gas sealing device for turbo compressor |
| CN201902331U (en) * | 2010-11-30 | 2011-07-20 | 成都一通密封有限公司 | Static pressure type dry air sealing device for screw compressor |
-
2017
- 2017-08-08 CN CN201710670809.9A patent/CN107237891A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499108A (en) * | 2003-10-09 | 2004-05-26 | 天津新技术产业园区鼎名密封有限公司 | General layout of dry type gas lock system |
| CN201650839U (en) * | 2010-02-02 | 2010-11-24 | 成都一通密封有限公司 | Dry-gas seal of cracked gas compressor |
| CN201902332U (en) * | 2010-11-30 | 2011-07-20 | 成都一通密封有限公司 | Dry gas sealing device for turbo compressor |
| CN201902331U (en) * | 2010-11-30 | 2011-07-20 | 成都一通密封有限公司 | Static pressure type dry air sealing device for screw compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |