CN203687022U - High-pressure star-shaped feeder adopting novel mechanical seal - Google Patents
High-pressure star-shaped feeder adopting novel mechanical seal Download PDFInfo
- Publication number
- CN203687022U CN203687022U CN201320885376.6U CN201320885376U CN203687022U CN 203687022 U CN203687022 U CN 203687022U CN 201320885376 U CN201320885376 U CN 201320885376U CN 203687022 U CN203687022 U CN 203687022U
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- China
- Prior art keywords
- mechanical seal
- pressure
- star
- high pressure
- impeller
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims description 32
- 238000010926 purge Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 description 16
- 239000003245 coal Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
Images
Abstract
The utility model discloses a high-pressure star-shaped feeder adopting novel mechanical seal. The high-pressure star-shaped feeder comprises an impeller, a shell and a rotary shaft, wherein the shell is arranged on the exterior of the impeller, and the rotary shaft is sleeved by the impeller. The high-pressure star-shaped feeder is characterized in that two ends of the impeller are respectively provided with a mechanical seal structure, the rotary shaft is sleeved by both the mechanical seal structures, high-pressure seal sweeping systems are arranged on the mechanical seal structures, and the seal sweeping gas inlets of the high-pressure seal sweeping systems are arranged close to the ends of the mechanical seal structures; the outer sides of the mechanical seal structures are provided with bearings. According to the utility model, the mechanical seal structures with high-pressure gas sweeping are adopted, so that feeding under higher pressure can be realized, the feeding pressure is related to the selected mechanical seal structures, sweeping gas pressure and the material and the wall thickness of the shell of the star-shaped feeder, and according to the changes of the three parameters, the high-pressure star-shaped feeder disclosed by the utility model can be suitable for feeding to various pressure environments.
Description
Technical field
The utility model relates to charging gear, particularly a kind of high pressure star-like feeder that adopts mechanical sealing.
Background technology
The add-on system of coal is the important step of pressurization of dry pulverized coal entrained flow bed gasification system.Coal gasification pulverized coal conveying device mainly contains strength and carries and two kinds of modes of machinery conveying.
For mechanical mode of movement, adopt screw feeder, star-like feeder etc. more, under normal pressure, can realize stable and uniform feed.But the pressure of pressurization of dry pulverized coal entrained flow bed gasification system is higher at present, conventionally meets or exceeds 4.0MPa, conventional screw feeder or star-like feeder can not meet the requirement of carrying out stable and uniform feed under such high-pressure situations.
In order to solve the problem of high-temperature pressure-proof, published technology as publication number be CN 101551016A, open day is the Chinese invention patent document on October 7th, 2009, a kind of shaft sealer of high-temperature pressure-proof star-type feeder is disclosed, its axle end sealing device has adopted mechanical seal to combine with hermetic seal, operating temperature can reach 300 ℃, but it withstand voltagely only has 0.6MPa, the pressure requirement that meets 4.0MPa that still can not above-mentionedly mention far away.
Then in order further to solve the technical problem of high pressure, there is again new public technology, publication number is CN 2529093Y, open day is the Chinese utility model patent document on January 1st, 2003, a kind of air hermetic feeder for controlling quantity of powdered coal of powdered coal pressure gasification is disclosed, on dispenser containment member, add the passage that passes into gases at high pressure and carried out enhanced leaktightness effect, can bear elevated pressures, and avoid the leakage of coal dust.But its filler can strengthen axis friction, reduces service life, and actual sealing effectiveness neither be fine.
Utility model content
The purpose of this utility model is to provide a kind of high pressure star-like feeder that adopts mechanical sealing, by adopt mechanical seal at star-like feeder impeller two ends, high-pressure blowing gas for mechanical seal (type is the same with conveying gas) stops dust leakage, cooling mechanical seal rubbing surface simultaneously, and bearing be arranged on mechanical seal structure after, make sealing reliability higher, machinery is also longer service life, can reach have more stable, more reliably to reinforced ability in the pressure environment of medium and high pressure.
The technical solution of the utility model is as follows:
A kind of high pressure star-like feeder that adopts mechanical sealing, comprise impeller, housing, rotating shaft, housing is arranged on impeller outside, impeller set is connected in rotating shaft, it is characterized in that: the two ends of described impeller add respectively mechanical seal structure, mechanical seal structure is all sleeved in rotating shaft, and high pressure sealing purging system is installed on mechanical seal structure, and the sealing sweep gas entrance of high pressure sealing purging system is arranged near above mechanical seal structure end; The outside of described mechanical seal structure adds bearing, bearing be arranged on mechanical seal structure after, make sealing reliability higher, machinery service life also longer.
Described high pressure sealing purging system also comprises pressure flow adjusting device and pipeline.
Described blanket gas pressure is greater than star-like feeder outlet pressure 0 ~ 0.1MPa.
One end of described rotating shaft is connected with motor by shaft coupling through housing.
The utility model star-like feeder body can be conventionally form, size and feed ability are determined by actual needs, adopt the sweep gas of gases at high pressure as mechanical seal structure, the effect that simultaneously plays sealing and cooling mechanical seal face, can make star-like feeder also can normally work under hyperbaric environment by high pressure sealing purging system in conjunction with mechanical seal structure.
The utility model beneficial effect and advantage are as follows:
The utility model adopts the mechanical seal structure purging with gases at high pressure, can realize the more feed of high pressure, adopts the sweep gas of gases at high pressure as mechanical seal structure, plays the effect of sealing and cooling mechanical seal face simultaneously; Feeding pressure is relevant with wall thickness to selected mechanical seal structure, sweep gas pressure and star-like feeder shell material, and the utility model, according to the variation of these three parameters, goes for to various pressure environment feed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of mechanical seal structure of the present utility model.
Wherein Reference numeral is: 1 motor, 2 shaft couplings, 3 bearings, 4 mechanical seal structures, 5 housings, 6 impellers, 7 rotating shafts, 8 sealing sweep gas entrances.
The specific embodiment
As shown in Figure 1, a kind of high pressure star-like feeder that adopts mechanical sealing, comprise impeller 6, housing 5, rotating shaft 7, housing 5 is arranged on impeller 6 outsides, impeller 6 is socketed in rotating shaft 7, and the two ends of described impeller 6 add respectively mechanical seal structure 4, and mechanical seal structure 4 is all sleeved in rotating shaft 7, high pressure sealing purging system is installed on mechanical seal structure 4, and the sealing sweep gas entrance 8 of high pressure sealing purging system is arranged near above mechanical seal structure 4 ends; The outside of described mechanical seal structure 4 adds bearing 3, bearing 3 be arranged on mechanical seal structure 4 after, make sealing reliability higher, machinery service life also longer.
Described high pressure sealing purging system also comprises pressure flow adjusting device and pipeline.
Described blanket gas pressure is greater than star-like feeder outlet pressure 0 ~ 0.1MPa.
One end of described rotating shaft 7 is connected with motor by shaft coupling 2 through housing 5.
The utility model star-like feeder body can be conventionally form, size and feed ability are determined by actual needs, adopt the sweep gas of gases at high pressure as mechanical seal structure, the effect that simultaneously plays sealing and cooling mechanical seal face, can make star-like feeder also can normally work under hyperbaric environment by high pressure sealing purging system in conjunction with mechanical seal structure.
Claims (4)
1. one kind adopts the high pressure star-like feeder of mechanical sealing, comprise impeller (6), housing (5), rotating shaft (7), housing (5) is arranged on impeller (6) outside, impeller (6) is socketed in rotating shaft (7), it is characterized in that: the two ends of described impeller (6) add mechanical seal structure (4), mechanical seal structure (4) is all sleeved in rotating shaft (7), mechanical seal structure is provided with high pressure sealing purging system on (4), and the sealing sweep gas entrance (8) of high pressure sealing purging system is arranged near above mechanical seal structure (4) end; The outside of described mechanical seal structure (4) adds bearing (3).
2. a kind of high pressure star-like feeder that adopts mechanical sealing according to claim 1, is characterized in that: described high pressure sealing purging system also comprises pressure flow adjusting device and pipeline.
3. a kind of high pressure star-like feeder that adopts mechanical sealing according to claim 1 and 2, is characterized in that: the blanket gas pressure in described mechanical seal structure (4) is greater than the outlet pressure 0-0.1MPa of star-like feeder.
4. a kind of high pressure star-like feeder that adopts mechanical sealing according to claim 1, is characterized in that: one end of described rotating shaft (7) is connected with motor by shaft coupling (2) through housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885376.6U CN203687022U (en) | 2013-12-31 | 2013-12-31 | High-pressure star-shaped feeder adopting novel mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885376.6U CN203687022U (en) | 2013-12-31 | 2013-12-31 | High-pressure star-shaped feeder adopting novel mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687022U true CN203687022U (en) | 2014-07-02 |
Family
ID=51008912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885376.6U Expired - Lifetime CN203687022U (en) | 2013-12-31 | 2013-12-31 | High-pressure star-shaped feeder adopting novel mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203687022U (en) |
-
2013
- 2013-12-31 CN CN201320885376.6U patent/CN203687022U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180503 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: DONGFANG ELECTRIC Co.,Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: DONGFANG ELECTRIC Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |