CN201351631Y - Mechanical sealing device for high-temperature coal pulp pump - Google Patents
Mechanical sealing device for high-temperature coal pulp pump Download PDFInfo
- Publication number
- CN201351631Y CN201351631Y CNU2008201572135U CN200820157213U CN201351631Y CN 201351631 Y CN201351631 Y CN 201351631Y CN U2008201572135 U CNU2008201572135 U CN U2008201572135U CN 200820157213 U CN200820157213 U CN 200820157213U CN 201351631 Y CN201351631 Y CN 201351631Y
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- ring
- cavity
- stationary
- seat
- sealing
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Abstract
The utility model relates to a mechanical sealing device for a high-temperature coal pulp pump, which adopts mechanical sealing at both end surfaces. The two sealing surfaces are arranged back to back, are in a package structure, and are installed in a built-in type. The mechanical sealing device mainly consists of a cavity, two movable ring groups, a movable ring seat, a front fixed ring, a back fixed ring, a fixed ring seat, a first flexible graphite sealing ring, a second flexible graphite sealing ring, a sealing retaining ring, a pressure ring, a press plate, a shaft sleeve, a movable ring seat, a clamping ring, a protective sleeve, a flow guide sleeve and an installing plate. Compared with the prior art, the utility model has the advantages that the mechanical sealing use temperature can reach 350 DEG C; the package structure makes the mechanical sealing disassembly simple; other parts required to be disassembled during mechanical sealing disassembly are few; and the arrangement of the flow guide sleeve and a threaded pump arranged on the protective sleeve can ensure the incapability for media to reach the sealing surface, and the sealing damage is avoided. Thereby, the utility model can be used for conveying media with high impurity content.
Description
Technical field
The utility model relates to fluid machinery, particularly relates to a kind of mechanical seal device that is used for the high temperature coal slurry pump.
Background technique
China's oil resource-constrained and coal resources are very abundant, but the exploitation of coal and consumption cause serious environmental to pollute, the super clean products of coal direct liquefaction production is one of important channel of coal clean utilization, and this industry meets the developing direction of new industrialization.
Firing Shenhua Coal direct liquefaction project adopts Shenhua to have the DCL/Direct coal liquefaction process engineering of independent intellectual property right, is the first cover Technology of direct coal liquefaction industrial production device in the world.
In the technological process of Firing Shenhua Coal direct liquefaction, need to carry a kind of dregs of fat, it is a kind of high temperature (maximum temperature can reach 331 ℃), has certain viscosity (166mPas), contains the medium of abrasion particle (solid coal dust 50.9w%, liquid flux oil 49.1w%) at high proportion, thereby very high requirement has been proposed the pump of carrying this medium, and as the most key mechanical seal of pump, must meet the following conditions:
1, must be arranged to the double mechanical seal of pressure by API standard P lan 53;
2, owing to high temperature, sealing is necessary for metal bellows mechanical seal;
3, because medium contains the abrasion particle, mechanical seal must have Rinsing unit;
4, the static seal in the mechanical seal must satisfy the high temperature requirement.
Summary of the invention
Technical problem to be solved in the utility model is exactly to provide a kind of simple, flushable mechanical seal device that is used for the high temperature coal slurry pump of dismantling for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of mechanical seal device that is used for the high temperature coal slurry pump, it is characterized in that, comprise cavity, two rotating ring groups, rotating seat, former and later two stationary rings, stationary seat, the first Expanded graphite seal ring, the second Expanded graphite seal ring, Sealing shield ring, trim ring, pressing plate, axle sleeve, rotating seat, clamping ring, sheath, water conservancy diversion cover and mounting plate, described two rotating ring assembly weldings are connected on the rotating seat, the stationary ring of described front end is fixed on the stationary seat by a pin, seal by the second Expanded graphite seal ring and Sealing shield ring between described stationary seat and the cavity, establish the first Expanded graphite seal ring between this stationary seat and the stationary ring, and compress by trim ring, this trim ring is anchored on the stationary seat, the stationary ring of described rear end is fixed on the cavity by a pin, be provided with the first Expanded graphite seal ring between the stationary ring of this rear end and the cavity, and compress by pressing plate, this pressing plate is anchored on the cavity, described axle sleeve is connected with rotating seat, and be anchored on the axle by clamping ring, described sheath is connected with rotating seat, be provided with O-ring seals between described sheath and the axle sleeve, described water conservancy diversion cover is anchored on the cavity, and described mounting plate is fixed on the cavity.
Described cavity is provided with insulating liquid import, insulating liquid outlet, flushing oil import and flushing oil outlet.
Described rotating seat is provided with helical pump.
Described sheath is provided with helical pump.
Described water conservancy diversion puts establishes the screw that is used for fastening trim ring.
Described O-ring seals is the thermostable fluorine rubber seal.
Compared with prior art, the utlity model has following advantage:
1, can make the mechanical seal serviceability temperature reach 350 ℃.
2. the unit loading type structure makes that the mechanical seal dismounting is simple, and other parts that need dismantle during dismounting mechanical seal are few.
3. the helical pump that is provided with on water conservancy diversion cover and the sheath can guarantee that medium can't arrive sealing surface, sealing is caused damage, thereby this mechanical seal can be used for carrying the medium of high impurity content.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Wherein: 1-rotating ring group, 2-stationary ring, 3-rotating seat, 4-axle sleeve, 5-cavity, the 6-sheath, 7-water conservancy diversion cover ,-trim ring, 9-stationary seat, 10-pressing plate, the 11-pin, 12-mounting plate, 13-clamping ring, 14-screw one, 15-screw two, 16-screw three, 17-screw four, 18-screw five, 19-screw six, 20-O shape seal ring, the 21-first Expanded graphite seal ring, the 22-second Expanded graphite seal ring, 23-Sealing shield ring, the import of 24-insulating liquid, the outlet of 25-insulating liquid, the import of 26-flushing oil, the outlet of 27-flushing oil.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of mechanical seal device that is used for the high temperature coal slurry pump, it is characterized in that, comprise cavity 5, two rotating ring groups 1, rotating seat 3, former and later two stationary rings 2, stationary seat 9, the first Expanded graphite seal ring 21, the second Expanded graphite seal ring 22, Sealing shield ring 23, trim ring 8, pressing plate 10, axle sleeve 4, rotating seat 3, clamping ring 13, sheath 6, water conservancy diversion cover 7 and mounting plate 12, described two rotating ring groups 1 are welded on the rotating seat 3, the stationary ring 2 of described front end is fixed on the stationary seat 9 by a pin 11, seal by the second Expanded graphite seal ring 22 and Sealing shield ring 23 between described stationary seat 9 and the cavity 5, establish the first Expanded graphite seal ring 21 between this stationary seat 9 and the stationary ring 2, and compress by trim ring 8, this trim ring 8 is anchored on the stationary seat 9, the stationary ring 2 of described rear end is fixed on the cavity 5 by a pin 11, be provided with the first Expanded graphite seal ring 21 between the stationary ring 2 of this rear end and the cavity 5, and compress by pressing plate 10, this pressing plate 10 is anchored on the cavity 5, described axle sleeve 4 is connected with rotating seat 3, and be anchored on the axle by clamping ring 13, described sheath 6 is connected with rotating seat 3, be provided with O-ring seals 20 between described sheath 6 and the axle sleeve 4, described water conservancy diversion cover 7 is anchored on the cavity 5, and described mounting plate 12 is fixed on the cavity 5.
Described cavity 5 is provided with insulating liquid import 24, insulating liquid outlet 25, flushing oil import 26 and flushing oil outlet 27; Described rotating seat 3 is provided with helical pump; Described sheath 6 is provided with helical pump; Establish the screw that is used for fastening trim ring on the described water conservancy diversion cover 7; Described O-ring seals 20 is the thermostable fluorine rubber seal.
Present embodiment is a double mechanical seal, and two sealing surfaces are provided with back-to-back, the unit loading type structure, and built-in type is installed: two rotating ring groups 1 are welded on the rotating seat 3, on the rotating seat 3 helical pump are set, in order to auxiliary insulating liquid circulation.Insulating liquid enters mechanical seal by insulating liquid import 24, by helical pump, leaves from insulating liquid outlet 25, takes away the heat that sealing surface produces.Front end stationary ring 2 is fixed on the stationary seat 9 by pin 11, seal by the second Expanded graphite seal ring 22 and Sealing shield ring 23 between stationary seat 9 and the cavity 5, establish the first Expanded graphite seal ring 21 between stationary seat 9 and the stationary ring 2, and compressed by trim ring 8, trim ring 8 is anchored on the stationary seat 9 by screw 4 17.Rear end stationary ring 2 is fixed on the cavity 5 by pin 11, establishes the first Expanded graphite seal ring 21 between stationary ring 2 and the cavity 5, and is compressed by pressing plate 10, and pressing plate 10 is anchored on the cavity 5 by screw 2 15.Axle sleeve 4 is connected with rotating seat 3 by screw 6 19, and is anchored on the axle by clamping ring 13.Sheath 6 and rotating seat 3 are also established helical pump by being threaded on the sheath 6, cooperates with water conservancy diversion cover 7, stop medium arrival seal face.Between sheath 6 and the axle sleeve 4 O-ring seals 20 is set, this O-ring seals adopts thermostable fluorine rubber.Water conservancy diversion cover 7 is anchored on cavity by screw 3 16, establishes screw 5 18 on the water conservancy diversion cover 7, in order to the front end stationary ring is fixed on the cavity 5.Cavity 5 is established flushing oil import 26, and water conservancy diversion cover 7 guides to sealing surface with flushing oil, and sealing surface is washed, and flushing oil outlet 27 can enter in the Seal cage impurity and derive, and prevent the impurity alluvial.On cavity 5, when mechanical seal was not used, mounting plate 12 embedded in the groove on the axle sleeves 4 mounting plate 12 by screw, and protection mechanical seal inner piece when mechanical seal is installed on the pump behind the tram, needs mounting plate 12 is shifted out axle sleeve 4 upper grooves and fastening.
Claims (6)
1. mechanical seal device that is used for the high temperature coal slurry pump, it is characterized in that, comprise cavity, two rotating ring groups, rotating seat, former and later two stationary rings, stationary seat, the first Expanded graphite seal ring, the second Expanded graphite seal ring, Sealing shield ring, trim ring, pressing plate, axle sleeve, rotating seat, clamping ring, sheath, water conservancy diversion cover and mounting plate, described two rotating ring assembly weldings are connected on the rotating seat, the stationary ring of described front end is fixed on the stationary seat by a pin, seal by the second Expanded graphite seal ring and Sealing shield ring between described stationary seat and the cavity, establish the first Expanded graphite seal ring between this stationary seat and the stationary ring, and compress by trim ring, this trim ring is anchored on the stationary seat, the stationary ring of described rear end is fixed on the cavity by a pin, be provided with the first Expanded graphite seal ring between the stationary ring of this rear end and the cavity, and compress by pressing plate, this pressing plate is anchored on the cavity, described axle sleeve is connected with rotating seat, and be anchored on the axle by clamping ring, described sheath is connected with rotating seat, be provided with O-ring seals between described sheath and the axle sleeve, described water conservancy diversion cover is anchored on the cavity, and described mounting plate is fixed on the cavity.
2. a kind of mechanical seal device that is used for the high temperature coal slurry pump according to claim 1 is characterized in that, described cavity is provided with insulating liquid import, insulating liquid outlet, flushing oil import and flushing oil outlet.
3. a kind of mechanical seal device that is used for the high temperature coal slurry pump according to claim 1 and 2 is characterized in that described rotating seat is provided with helical pump.
4. a kind of mechanical seal device that is used for the high temperature coal slurry pump according to claim 3 is characterized in that described sheath is provided with helical pump.
5. according to claim 2 or 4 described a kind of mechanical seal device that are used for the high temperature coal slurry pump, it is characterized in that described water conservancy diversion puts establishes the screw that is used for fastening trim ring.
6. a kind of mechanical seal device that is used for the high temperature coal slurry pump according to claim 5 is characterized in that described O-ring seals is the thermostable fluorine rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201572135U CN201351631Y (en) | 2008-12-16 | 2008-12-16 | Mechanical sealing device for high-temperature coal pulp pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201572135U CN201351631Y (en) | 2008-12-16 | 2008-12-16 | Mechanical sealing device for high-temperature coal pulp pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351631Y true CN201351631Y (en) | 2009-11-25 |
Family
ID=41375018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201572135U Expired - Lifetime CN201351631Y (en) | 2008-12-16 | 2008-12-16 | Mechanical sealing device for high-temperature coal pulp pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351631Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806307A (en) * | 2010-04-27 | 2010-08-18 | 蒋金华 | Liquid delivery pump for wells |
| CN102588327A (en) * | 2012-03-07 | 2012-07-18 | 天津中海石油机械有限公司 | Centrifugal pump with independent mechanical shaft seal device |
| CN102606518A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Mechanical seal device of plant water pump for nuclear power plant |
| CN102619989A (en) * | 2012-03-07 | 2012-08-01 | 大连华阳光大密封有限公司 | Back-to-back type tailstock-sharing weld metal bellows seal |
| CN104343468A (en) * | 2013-07-31 | 2015-02-11 | 三星泰科威株式会社 | A vane assembly and a vane apparatus comprising the vane assembly |
| CN104508335A (en) * | 2012-07-11 | 2015-04-08 | 利斯特股份公司 | Method and apparatus for handling a product |
| CN105090519A (en) * | 2015-06-16 | 2015-11-25 | 湖南华银能源技术有限公司 | Open cooling type mechanical sealing device for coal tar pump |
| CN107120316A (en) * | 2017-06-30 | 2017-09-01 | 沈阳鼓风机集团核电泵业有限公司 | A kind of horizontal-type high temperature pump |
| CN112240311A (en) * | 2019-07-18 | 2021-01-19 | 河北兆宏机械泵业有限公司 | Shaft seal device |
-
2008
- 2008-12-16 CN CNU2008201572135U patent/CN201351631Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806307A (en) * | 2010-04-27 | 2010-08-18 | 蒋金华 | Liquid delivery pump for wells |
| CN102588327A (en) * | 2012-03-07 | 2012-07-18 | 天津中海石油机械有限公司 | Centrifugal pump with independent mechanical shaft seal device |
| CN102619989A (en) * | 2012-03-07 | 2012-08-01 | 大连华阳光大密封有限公司 | Back-to-back type tailstock-sharing weld metal bellows seal |
| CN102606518A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Mechanical seal device of plant water pump for nuclear power plant |
| CN104508335A (en) * | 2012-07-11 | 2015-04-08 | 利斯特股份公司 | Method and apparatus for handling a product |
| CN104343468A (en) * | 2013-07-31 | 2015-02-11 | 三星泰科威株式会社 | A vane assembly and a vane apparatus comprising the vane assembly |
| CN104343468B (en) * | 2013-07-31 | 2017-09-19 | 韩华泰科株式会社 | Blade assembly and the blade apparatus including the blade assembly |
| CN105090519A (en) * | 2015-06-16 | 2015-11-25 | 湖南华银能源技术有限公司 | Open cooling type mechanical sealing device for coal tar pump |
| CN107120316A (en) * | 2017-06-30 | 2017-09-01 | 沈阳鼓风机集团核电泵业有限公司 | A kind of horizontal-type high temperature pump |
| CN107120316B (en) * | 2017-06-30 | 2019-05-31 | 沈阳鼓风机集团核电泵业有限公司 | A kind of horizontal-type high temperature pump |
| CN112240311A (en) * | 2019-07-18 | 2021-01-19 | 河北兆宏机械泵业有限公司 | Shaft seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |