CN203627294U - Double-end-face mechanical sealing structure for slurry pump - Google Patents
Double-end-face mechanical sealing structure for slurry pump Download PDFInfo
- Publication number
- CN203627294U CN203627294U CN201320850820.0U CN201320850820U CN203627294U CN 203627294 U CN203627294 U CN 203627294U CN 201320850820 U CN201320850820 U CN 201320850820U CN 203627294 U CN203627294 U CN 203627294U
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- ring
- gland
- sealing structure
- sealed case
- stock pump
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Abstract
The utility model discloses a double-end-face mechanical sealing structure for a slurry pump. The double-end-face mechanical sealing structure for the slurry pump comprises a shaft sleeve, wherein a sealing box and a gland are arranged outside the shaft sleeve in a sleeved mode, the gland is fixedly connected with the sealing box, a sealing area is formed among the sealing box, the gland and the shaft sleeve, a movable ring and fixed rings are arranged in the sealing area, the movable ring is fixed to the shaft sleeve, the fixed rings are arranged on the two sides of the movable ring respectively, and abut against the movable ring through elastic parts, a filling area is further formed between the sealing box and the shaft sleeve, and is connected with the sealing area, and lip type sealing rings are arranged in the filling area. According to the double-end-face mechanical sealing structure for the slurry pump, due to the fact that the lip type sealing rings and an end cover are arranged, slurry is prevented from entering sealed end faces in the axial direction, the sealing effect of the slurry pump is ensured, the slurry pump can convey the slurry without leakage under any working conditions, and applicability is high.
Description
Technical field
The utility model relates to a kind of slag stock pump double-face mechanical sealing structure, belongs to mechanical sealing technology field.
Background technique
Slag slurry mechanical seal for pump has mechanical single seal and double seals from structure, and how spring sealed balanced seal and unbalanced type sealing be single spring sealed and, cartridge seal and non-cartridge seal, and band sparge water seals and seals without sparge water.In prior art, slag slurry mechanical seal for pump is arranged on running shaft, spring force and hydrodynamic pressure by spring action are loaded on compensated loop, then by keeping and laminating the relative sliding of uncompensated ring under the cooperation of auxiliary seal ring, prevent in pump that slurry is along the axial leakage of slag stock pump.
But the outstanding problem that slag slurry mechanical sealing device used for pump of the prior art runs into is wearing and tearing, obstruction and the etching problem of slurry.
Summary of the invention
For the existing the problems referred to above of prior art, the utility model aims to provide a kind of slag stock pump double-face mechanical sealing structure, can avoid wearing and tearing, obstruction and the corrosion of slurry to mechanical seal in pump, plays good sealing effect.
To achieve these goals, the utility model adopts following technological scheme:
A kind of slag stock pump double-face mechanical sealing structure, comprise axle sleeve, the gland that described axle sleeve is arranged with sealed case outward and is fixedly connected with described sealed case, between described sealed case and described gland and described axle sleeve, be formed with sealing area, in described sealing area, be provided with and be fixed on the rotating ring on described axle sleeve and be positioned at described rotating ring both sides and be resisted against the stationary ring of described rotating ring by elastic component, between described sealed case and described axle sleeve, be also formed with the fill area joining with described sealing area, wherein, in described fill area, be provided with lip-type packing.
As preferred version, described lip-type packing comprises near the main part of described sealing area side and away from described sealing area side and by described main part shrinks and the neck that forms, between described neck and sealed case, is provided with O-ring seals.
As preferred version, be provided with end cap at described sealed case away from one end of described gland, described end cap has the axial protuberance that extends to described O-ring seals.
As preferred version, be provided with in one end of described axle sleeve for described axle sleeve being fixed on to the transmission ring in the rotating shaft of described slag stock pump.
As preferred version, described lip-type packing is teflon material.
As preferred version, between described sealed case and described gland, be provided with gasket seal.
As preferred version, in described axle sleeve, be provided with O-ring seals.
As preferred version, described stationary ring is two, wherein: a stationary ring, between rotating ring and gland, and is provided with between this stationary ring and gland with so that this stationary ring is resisted against the elastic component on rotating ring; Another stationary ring, between rotating ring and sealed case, and is provided with between this stationary ring and sealed case with so that this stationary ring is resisted against the elastic component on rotating ring.
As further preferred version, between stationary ring and gland and between stationary ring and sealed case, be radially provided with O-ring seals.
As further preferred version, described elastic component is helical spring.
Implement slag stock pump double-face mechanical sealing structure of the present utility model, there is following beneficial effect: by lip-type packing and end cap are set, thereby prevented that slurry from entering seal face vertically, ensured the sealing effect of slag stock pump.Adopt this structure, under any operating mode, all can realize slag stock pump and carry slurry without leaking.In addition, this sealing configuration has also strengthened the adaptive capacity of shaft seal, can allow the pressure of clean water to change within the specific limits, at variable speed, pressure changeable, pump depletion and often all can ensure sealing function under the working condition such as start-stop, reliability improves, and applicability is strong.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of a kind of slag stock pump double mechanical seal that provides of the utility model, and this mechanical seal structure is upper and lower symplex structure, and therefore upper half part is only shown.
Number in the figure is schematically as follows: 1, axle sleeve; 2, O-ring seals a; 3, sealed case; 4, gland; 5, gasket seal; 6, rotating ring; 7, stationary ring; 71, the stationary ring between rotating ring 6 and gland 4; 72, the stationary ring between rotating ring 6 and sealed case 3; 8, elastic component; 9, O-ring seals b; 10, lip-type packing; 11, O-ring seals c; 12, end cap; 13, transmission ring; 14, snap ring 14; 15, O-ring seals d; 16, collection load.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described.
As shown in Figure 1: a kind of slag stock pump double-face mechanical sealing structure that the utility model provides, comprise axle sleeve 1, in axle sleeve 1, be provided with O-ring seals a2, the outer gland 4 that is arranged with sealed case 3 and is fixedly connected with sealed case 3 of axle sleeve 1, is provided with gasket seal 5 between sealed case 3 and gland 4.Between sealed case 3 and gland 4 and axle sleeve 1, be formed with sealing area, in sealing area, be provided with the rotating ring 6 being fixed on axle sleeve 1 and be positioned at rotating ring 6 both sides and be resisted against the stationary ring 7 of rotating ring 6 by elastic component; Stationary ring 7 is two, and wherein, a stationary ring 71, between rotating ring 6 and gland 4, and is provided with between this stationary ring 71 and gland 4 with so that this stationary ring 71 is resisted against the elastic component 8 on rotating ring 6; Another stationary ring 72, between rotating ring 6 and sealed case 3, and is provided with between this stationary ring 72 and sealed case 3 with so that this stationary ring 72 is resisted against the elastic component 8 on rotating ring 6.As preferably, described elastic component 8 is selected helical spring.In addition, between stationary ring 71 and gland 4 and between stationary ring 72 and sealed case 3, be radially provided with O-ring seals b 9, so that stationary ring 7, in the time moving axially, can play seal action.
Between sealed case 3 and axle sleeve 1, be also formed with the fill area joining with sealing area, wherein, be provided with lip-type packing 10 in fill area, this lip-type packing 10 can further prevent the axial leakage of slurry from the pump housing, meanwhile, can also avoid cooling water to enter in the pump housing.As preferred version, described lip-type packing 10 comprises near the main part of sealing area side and away from sealing area side and by main part shrinks and the neck that forms, between described neck and sealed case 3, is provided with O-ring seals c 11.As further preferred version, described lip-type packing 10 is teflon material.
For preventing that the O shape at lip-type packing 10 places from enclosing the movement of c 11, be provided with end cap 12 at sealed case 3 away from one end of gland 4, end cap 12 has the axial protuberance that extends to O shape circle c 11.This end cap 12 usual manner such as can be threaded connection and be fixed on sealed case 3, like this, can obtain better sealing effect.
Be connected with the rotating shaft of slag stock pump for ease of sealing structure, be provided with for axle sleeve being fixed on to the transmission ring 13 in the rotating shaft of slag stock pump in one end of axle sleeve 1.
The assembly manipulation of double mechanical seal described in the utility model is as follows: by rotating ring 6 by transmission pin, snap ring 14, be equipped with O-ring seals d 15 again and be fixed on axle sleeve 1, stationary ring 71 is equipped with elastic component 8 and O-ring seals b 9 is installed in gland 4, overall top rotating ring 6 is fixed on axle sleeve 1 by collection load 16 again, and another stationary ring 72 is equipped with elastic component 8 and O-ring seals b 9 is installed in sealed case 3, overall top rotating ring 6 is bolted fixing with gland 4, gasket seal 5 again; Again lip-type packing 10, O-ring seals c 11 and end cap 12 are installed on to the other end of sealed case 3, finally transmission ring 13 are fixed on to the end of axle sleeve 1, at the interior placement O-ring seals of axle sleeve 1 a 2.
When use, described sealing configuration is fixedly mounted on the running shaft of slag stock pump, before the running of slag stock pump, connect mechanical seal rinsing water, when the running of slag stock pump, sparge water is filled with sealing area, and the elastic force of sparge water pressure and spring is loaded on stationary ring 7, make stationary ring 7 be fitted on rotating ring 6 and energy relative sliding, thereby play seal action, effectively prevent that in pump, slurry leaks vertically.
Finally be necessary described herein: foregoing is only for being described in further detail the technical solution of the utility model; can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement that those skilled in the art makes according to foregoing of the present utility model and adjustment all belong to protection domain of the present utility model.
Claims (10)
1. a slag stock pump double-face mechanical sealing structure, it is characterized in that: comprise axle sleeve, the gland that described axle sleeve is arranged with sealed case outward and is fixedly connected with described sealed case, between described sealed case and described gland and described axle sleeve, be formed with sealing area, in described sealing area, be provided with and be fixed on the rotating ring on described axle sleeve and be positioned at described rotating ring both sides and be resisted against the stationary ring of described rotating ring by elastic component, between described sealed case and described axle sleeve, be also formed with the fill area joining with described sealing area, wherein, in described fill area, be provided with lip-type packing.
2. slag stock pump double-face mechanical sealing structure as claimed in claim 1, it is characterized in that: described lip-type packing comprises near the main part of described sealing area side and away from described sealing area side and by described main part shrinks and the neck that forms, between described neck and sealed case, is provided with O-ring seals.
3. slag stock pump double-face mechanical sealing structure as claimed in claim 1 or 2, is characterized in that: described lip-type packing is teflon material.
4. slag stock pump double-face mechanical sealing structure as claimed in claim 2, is characterized in that: be provided with end cap at described sealed case away from one end of described gland, described end cap has the axial protuberance that extends to described O-ring seals.
5. slag stock pump double-face mechanical sealing structure as claimed in claim 1, is characterized in that: be provided with in one end of described axle sleeve for described axle sleeve being fixed on to the transmission ring in the rotating shaft of described slag stock pump.
6. slag stock pump double-face mechanical sealing structure as claimed in claim 1, is characterized in that: between described sealed case and described gland, be provided with gasket seal.
7. slag stock pump double-face mechanical sealing structure as claimed in claim 1, is characterized in that: in described axle sleeve, be provided with O-ring seals.
8. slag stock pump double-face mechanical sealing structure as claimed in claim 1, it is characterized in that: described stationary ring is two, wherein: a stationary ring, between rotating ring and gland, and is provided with between this stationary ring and gland with so that this stationary ring is resisted against the elastic component on rotating ring; Another stationary ring, between rotating ring and sealed case, and is provided with between this stationary ring and sealed case with so that this stationary ring is resisted against the elastic component on rotating ring.
9. slag stock pump double-face mechanical sealing structure as claimed in claim 7, is characterized in that: between stationary ring and gland and between stationary ring and sealed case, be radially provided with O-ring seals.
10. the slag stock pump double-face mechanical sealing structure as described in claim 1 or 8, is characterized in that: described elastic component is helical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320850820.0U CN203627294U (en) | 2013-12-20 | 2013-12-20 | Double-end-face mechanical sealing structure for slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320850820.0U CN203627294U (en) | 2013-12-20 | 2013-12-20 | Double-end-face mechanical sealing structure for slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627294U true CN203627294U (en) | 2014-06-04 |
Family
ID=50813777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320850820.0U Expired - Fee Related CN203627294U (en) | 2013-12-20 | 2013-12-20 | Double-end-face mechanical sealing structure for slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627294U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782108A (en) * | 2016-03-24 | 2016-07-20 | 芜湖市中天密封件有限公司 | Chemical pump water tank type case sealing part |
| CN107701730A (en) * | 2017-10-18 | 2018-02-16 | 江苏飞跃机泵集团有限公司 | A kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching |
| JP2018150844A (en) * | 2017-03-10 | 2018-09-27 | 株式会社荏原製作所 | Submerged pump |
| CN109519411A (en) * | 2018-12-29 | 2019-03-26 | 沈阳创星泵业有限公司 | One kind is exempted to change mechanical seal structure |
| CN110397741A (en) * | 2019-08-28 | 2019-11-01 | 东营海森密封技术有限责任公司 | A kind of shaft end mechanically-sealing apparatus |
| CN111102356A (en) * | 2020-01-13 | 2020-05-05 | 西安瑞联新材料股份有限公司 | Double-end-face mechanical seal |
-
2013
- 2013-12-20 CN CN201320850820.0U patent/CN203627294U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782108A (en) * | 2016-03-24 | 2016-07-20 | 芜湖市中天密封件有限公司 | Chemical pump water tank type case sealing part |
| JP2018150844A (en) * | 2017-03-10 | 2018-09-27 | 株式会社荏原製作所 | Submerged pump |
| CN107701730A (en) * | 2017-10-18 | 2018-02-16 | 江苏飞跃机泵集团有限公司 | A kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching |
| CN109519411A (en) * | 2018-12-29 | 2019-03-26 | 沈阳创星泵业有限公司 | One kind is exempted to change mechanical seal structure |
| CN110397741A (en) * | 2019-08-28 | 2019-11-01 | 东营海森密封技术有限责任公司 | A kind of shaft end mechanically-sealing apparatus |
| CN110397741B (en) * | 2019-08-28 | 2024-04-26 | 东营海森密封技术有限责任公司 | Shaft end mechanical sealing device |
| CN111102356A (en) * | 2020-01-13 | 2020-05-05 | 西安瑞联新材料股份有限公司 | Double-end-face mechanical seal |
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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: 20140604 Termination date: 20151220 |
|
| EXPY | Termination of patent right or utility model |