CN203939999U - The multistage dry gas sealing device of charge gas compressor - Google Patents
The multistage dry gas sealing device of charge gas compressor Download PDFInfo
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- CN203939999U CN203939999U CN201420378325.9U CN201420378325U CN203939999U CN 203939999 U CN203939999 U CN 203939999U CN 201420378325 U CN201420378325 U CN 201420378325U CN 203939999 U CN203939999 U CN 203939999U
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- sealing
- gas
- primary seal
- ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/40—Ethylene production
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Abstract
The utility model discloses the multistage dry gas sealing device of a kind of charge gas compressor, comprise axle sleeve, be arranged on compressor rotation shaft; Primary seal mechanism, this primary seal mechanism comprises primary seal mechanism, secondary seal mechanism and three grades of sealing mechanisms; Labyrinth seal ring, this labyrinth seal ring is provided with three groups, and lays respectively at primary seal mechanism front side, and between sealing mechanism at different levels; Isolate gas sealing mechanism, be arranged on the rear side of three grades of sealing mechanisms of three grades of sealing mechanisms; Process gas recovering mechanism, this process gas recovering mechanism is by process gas recovering device and connected air delivering pipeline, and the other end of air delivering pipeline is communicated with the process gas outlet of primary seal mechanism; One-way valve, is arranged on the process gas outlet port of primary seal mechanism; Gas-filtering device, arranges the nitrogen outlet place of primary seal mechanism; Sealing device has labyrinth seal and isolation hermetic seal, good seal performance, and long service life, high-pressure service performance is good.
Description
Technical field
The utility model relates to the mechanical device that a kind of ethylene production is used, and especially relates to the multistage dry gas sealing device of charge gas compressor.
Background technique
Charge gas compressor is one of ethylene unit " core three machines ", is the tap of whole ethylene unit, and can it stablize, the directly normal production of the whole ethylene unit of impact of operation reliably.Charge gas compressor sealing adopts floating-ring seal conventionally, but there is the problem that amount of leakage is large, therefore floating-ring seal is replaced by dry gas seals gradually, and dry gas seals used is substantially all single-stage sealing at present, its sealing effect also need to improve, can not meet the usage requirement of charge gas compressor high-pressure service, lubricant oil in bearing housing also easily enters in sealing mechanism, thereby easily damage equipment, and the waste gas of existing dry gas seals mechanism is all directly to enter in atmosphere or by torch burning, to very serious of the pollution of environment.
Model utility content
For addressing the above problem, the utility model proposes one and adopted multistage setting, and be equipped with labyrinth seal and isolation hermetic seal, and good sealing effect, long service life, energy-conserving and environment-protective, can meet the multistage dry gas sealing device of charge gas compressor of high-pressure service.
The technological scheme that the utility model adopts is: the multistage dry gas sealing device of a kind of charge gas compressor, comprise axle sleeve, and be arranged on compressor rotation shaft; Primary seal mechanism, this primary seal mechanism comprises primary seal mechanism, secondary seal mechanism and three grades of sealing mechanisms, sealing mechanisms at different levels form by the rotating ring, stationary ring, throw-out collar, spring, the spring seat that are successively set on from front to back in the each cavity of axle sleeve; Labyrinth seal ring, this labyrinth seal ring is provided with three groups, and lays respectively at primary seal mechanism front side, and between sealing mechanism at different levels; Isolate gas sealing mechanism, be arranged on the rear side of three grades of sealing mechanisms of three grades of sealing mechanisms; Process gas recovering mechanism, this process gas recovering mechanism is by process gas recovering device and connected air delivering pipeline, and the other end of air delivering pipeline is communicated with the process gas outlet of primary seal mechanism, the process gas of discharge can be carried out to secondary utilization; One-way valve, is arranged on the process gas outlet port of primary seal mechanism, can prevent that process gas from pouring in down a chimney as sealing mechanism; Gas-filtering device, arranges the nitrogen outlet place of primary seal mechanism, can filter the gas of discharge, makes gas enter atmosphere and reaches zero pollution.
Further, between described throw-out collar and spring seat and stationary ring and between rotating ring and axle sleeve cavity wall, be equipped with polymeric seal circle.
Further, described rotating ring is fir flute profile ring or circular arc flute profile ring, can select according to rotation direction demand the rotating ring of corresponding construction.
As preferably, described labyrinth seal ring is honeycombed seal ring.
Compared with prior art, it has following beneficial effect to the utility model:
The multistage dry gas sealing device of charge gas compressor of the present utility model has adopted Multi-level sealing structure, and be equipped with multi-stage maze sealing and isolated hermetic seal, sealability and working life are effectively improved, can meet the running demand of high pressure, sealing mechanisms at different levels are equipped with seal ring between throw-out collar and spring seat and stationary ring simultaneously, also further improved its high-pressure service performance, the nitrogen that sealing mechanism is discharged is by getting rid of after filtering, reduce the contaminativity of gas, the process gas of discharging has been carried out secondary utilization, makes the energy-conserving and environment-protective more of this device.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
1-axle sleeve; 2-primary seal mechanism; 3-secondary seal mechanism; Tri-grades of sealing mechanisms of 4-; 5-labyrinth seal ring; 6-isolates gas sealing mechanism; 7-process gas recovering device; 8-air delivering pipeline; 9-one-way valve; 10-gas-filtering device; 101-rotating ring; 102-stationary ring; 103-throw-out collar; 104-spring; 105-spring seat; 106-polymeric seal circle.
Embodiment
The multistage dry gas sealing device of a kind of charge gas compressor as shown in Figure 1, comprises axle sleeve 1, is arranged on compressor rotation shaft; Primary seal mechanism, this primary seal mechanism comprises primary seal mechanism 2, secondary seal mechanism 3 and three grades of sealing mechanisms 4, and sealing mechanisms at different levels form by the rotating ring 101, stationary ring 102, throw-out collar 103, spring 104, the spring seat 105 that are successively set on from front to back in the each cavity of axle sleeve 1; Labyrinth seal ring 5, this labyrinth seal ring 5 is provided with three groups, and lays respectively at primary seal mechanism 2 front sides, and between sealing mechanism at different levels; Isolate gas sealing mechanism 6, be arranged on the rear side of three grades of sealing mechanisms 4 of three grades of sealing mechanisms; Process gas recovering mechanism, this process gas recovering mechanism is by process gas recovering device 7 and connected air delivering pipeline 8, and the other end of air delivering pipeline 8 is communicated with the process gas outlet of primary seal mechanism, the process gas of discharge can be carried out to secondary utilization; One-way valve 9, is arranged on the process gas outlet port of primary seal mechanism, can prevent that process gas from pouring in down a chimney as sealing mechanism; Gas-filtering device 10, arranges the nitrogen outlet place of primary seal mechanism, can filter the gas of discharge, makes gas enter atmosphere and reaches zero pollution.This multistage dry gas sealing device is provided with three grades of sealing mechanisms, has guaranteed sealability and high-pressure service performance, in the time that certain one-level sealing mechanism damages, can ensure the normal operation of machine.
Wherein, between described throw-out collar 103 and spring seat 105 and stationary ring 102 and between rotating ring 101 and axle sleeve 1 cavity wall, be equipped with polymeric seal circle 106; Described rotating ring 105 is fir flute profile ring or circular arc flute profile ring, can select according to rotation direction demand the rotating ring of corresponding construction; Described labyrinth seal ring 5 is honeycombed seal ring.
The multistage dry gas sealing device of charge gas compressor of the present utility model has adopted Multi-level sealing structure, and be equipped with multi-stage maze sealing and isolated hermetic seal, sealability and working life are effectively improved, can meet the running demand of high pressure, sealing mechanisms at different levels are equipped with seal ring between throw-out collar and spring seat and stationary ring simultaneously, also further improved its high-pressure service performance, the nitrogen that sealing mechanism is discharged is by getting rid of after filtering, reduce the contaminativity of gas, the process gas of discharging has been carried out secondary utilization, makes the energy-conserving and environment-protective more of this device.
Embodiment recited above is described preferred implementation of the present utility model, not design of the present utility model and scope is limited.Do not departing under the prerequisite of the utility model design concept; various modification and improvement that related domain ordinary person makes the technical solution of the utility model; all should drop into protection domain of the present utility model; the technology contents of the utility model request protection, has all been documented in claims.
Claims (4)
1. the multistage dry gas sealing device of charge gas compressor, is characterized in that: comprising:
Axle sleeve (1), is arranged on compressor rotation shaft;
Primary seal mechanism, this primary seal mechanism comprises primary seal mechanism (2), secondary seal mechanism (3) and three grades of sealing mechanisms (4), and sealing mechanisms at different levels form by the rotating ring (101), stationary ring (102), throw-out collar (103), spring (104), the spring seat (105) that are successively set on from front to back in the each cavity of axle sleeve (1);
Labyrinth seal ring (5), this labyrinth seal ring (5) is provided with three groups, and lays respectively at primary seal mechanism (2) front side, and between sealing mechanism at different levels;
Isolate gas sealing mechanism (6), be arranged on the rear side of three grades of sealing mechanisms of three grades of sealing mechanisms (4);
Process gas recovering mechanism, this process gas recovering mechanism is by process gas recovering device (7) and connected air delivering pipeline (8), and the other end of air delivering pipeline (8) is communicated with the outlet of the process gas of primary seal mechanism;
One-way valve (9), is arranged on the process gas outlet port of primary seal mechanism;
Gas-filtering device (10), arranges the nitrogen outlet place of primary seal mechanism.
2. the multistage dry gas sealing device of charge gas compressor according to claim 1, is characterized in that: between described throw-out collar (103) and spring seat (105) and stationary ring (102) and between rotating ring (101) and axle sleeve (1) cavity wall, be equipped with polymeric seal circle (106).
3. the multistage dry gas sealing device of charge gas compressor according to claim 1, is characterized in that: described rotating ring (105) is fir flute profile ring or circular arc flute profile ring.
4. the multistage dry gas sealing device of charge gas compressor according to claim 1, is characterized in that: described labyrinth seal ring (5) is honeycombed seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378325.9U CN203939999U (en) | 2014-07-10 | 2014-07-10 | The multistage dry gas sealing device of charge gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378325.9U CN203939999U (en) | 2014-07-10 | 2014-07-10 | The multistage dry gas sealing device of charge gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939999U true CN203939999U (en) | 2014-11-12 |
Family
ID=51859313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420378325.9U Expired - Fee Related CN203939999U (en) | 2014-07-10 | 2014-07-10 | The multistage dry gas sealing device of charge gas compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939999U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546120A (en) * | 2016-01-05 | 2016-05-04 | 西南石油大学 | Bilateral-pressurizing multilevel automatic starting and stopping mechanical seal device |
| CN106678371A (en) * | 2017-03-03 | 2017-05-17 | 四川日机密封件股份有限公司 | Dry gas sealing device of long-distance pipeline natural gas compressor |
| CN113107873A (en) * | 2021-05-11 | 2021-07-13 | 内蒙古兴洋科技有限公司 | Centrifugal compression method for electronic high-purity gas |
| CN115030906A (en) * | 2022-06-28 | 2022-09-09 | 江苏金通灵鼓风机有限公司 | Non-oriented silicon steel annealing furnace fan |
-
2014
- 2014-07-10 CN CN201420378325.9U patent/CN203939999U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546120A (en) * | 2016-01-05 | 2016-05-04 | 西南石油大学 | Bilateral-pressurizing multilevel automatic starting and stopping mechanical seal device |
| CN106678371A (en) * | 2017-03-03 | 2017-05-17 | 四川日机密封件股份有限公司 | Dry gas sealing device of long-distance pipeline natural gas compressor |
| CN113107873A (en) * | 2021-05-11 | 2021-07-13 | 内蒙古兴洋科技有限公司 | Centrifugal compression method for electronic high-purity gas |
| CN113107873B (en) * | 2021-05-11 | 2023-03-07 | 内蒙古兴洋科技股份有限公司 | Centrifugal compression method for electronic high-purity gas |
| CN115030906A (en) * | 2022-06-28 | 2022-09-09 | 江苏金通灵鼓风机有限公司 | Non-oriented silicon steel annealing furnace fan |
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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: 20141112 Termination date: 20160710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |