CN201650836U - Mechanical seal for slurry pump - Google Patents
Mechanical seal for slurry pump Download PDFInfo
- Publication number
- CN201650836U CN201650836U CN201020106206XU CN201020106206U CN201650836U CN 201650836 U CN201650836 U CN 201650836U CN 201020106206X U CN201020106206X U CN 201020106206XU CN 201020106206 U CN201020106206 U CN 201020106206U CN 201650836 U CN201650836 U CN 201650836U
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- stationary seat
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- mechanical seal
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical seal for a slurry pump, and particularly relates to a mechanical seal with a primary end surface seal and secondary end surface seal tandem type sealing structure and a cooling flushing structure. The mechanical seal comprises a shaft sleeve, a primary end surface seal, a second end surface seal and the cooling flushing structure, wherein the shaft sleeve is sleeved outside the mechanical seal and rotates together with the same, the primary end surface seal and the secondary end surface seal form the tandem type end surface sealing structure, and the cooling flushing structure is disposed between the primary end surface seal and the secondary end surface seal. The mechanical seal has the advantages that a sealing friction pair adopts hard alloy materials with high hardness, high strength and impact load resistance, the mechanical seal changes an original single-end-surface structure and is a special dual-balance serial connection type mechanical seal structure with external flushing water, and then service life of the mechanical seal can be prolonged by half year to one year. To sum up, the mechanical seal is suitable to be applied to slurry pumps for particle media with high solid content and hardness.
Description
Technical field:
The utility model relates to mechanical seal, is specifically related to a kind of mechanical seal that has one-level end face seal, secondary end face seal series seal structure and cooling flushing mechanism.
Background technique:
The sealing of slag stock pump be always the important trouble again of one of chemical industry a difficult problem, reliably the quality and the stable crucial effects that plays of its sealing to producing.As, existing alumina industry slag stock pump mostly is the single end face structure, alumina industry slag slurry has the solid content height, characteristics such as solid particle hardness height, material easily condense produce very strong abrasive wear effect to sealing, make seal face form early stage inordinate wear, cause material from leakage, and sealing life is very short, often has only several days to several weeks.
The model utility content:
The utility model is intended to solve the problems referred to above of existing slag stock pump mechanical seal, and a kind of mechanical seal that has one-level end face seal, secondary end face seal series seal structure and cooling flushing mechanism is provided.
For reaching above-mentioned purpose, the utility model adopts following scheme: the mechanical seal of slag stock pump, comprise being set in outside the axle, with the co-rotational axle sleeve of axle, and also comprise one-level end face seal, secondary end face seal and cooling flushing mechanism; The tandem end face seal structure is one in front and one in back formed in described one-level end face seal, secondary end face seal, and described cooling flushing mechanism is arranged between one-level end face seal and the secondary end face seal; Atmospheric side one end of described axle sleeve also is provided with driving ring, and described driving ring is connected to atmospheric side one end of axle sleeve, and it also is provided with Cock screw.
According to slag stock pump provided by the utility model mechanical seal, described one-level end face seal comprises one-level rotating ring, one-level stationary ring and one-level stationary seat; Described one-level stationary seat is sheathed on one section outside of the side medium of described axle sleeve, and described one-level rotating ring, one-level rotating ring are arranged between axle sleeve and the one-level stationary seat; One-level stationary ring and one-level stationary seat are provided with spring.
According to slag stock pump provided by the utility model mechanical seal, described secondary end face seal comprises secondary stationary seat, secondary stationary ring and secondary rotating ring; Described secondary stationary seat is sheathed on one section outside of the atmospheric side of described axle sleeve, and described secondary stationary ring and secondary rotating ring are arranged between secondary stationary seat and the described driving ring; Be provided with spring between secondary stationary seat and the secondary stationary ring; The internal diameter of secondary stationary seat and secondary stationary ring is greater than the external diameter of the corresponding section of axle sleeve.
According to slag stock pump provided by the utility model mechanical seal,
Described cooling flushing mechanism comprises water conservancy diversion cover and gland; Described water conservancy diversion cover is sheathed between axle sleeve and the one-level stationary seat, and water conservancy diversion cover side medium one end is positioned at one-level stationary ring inboard, and water conservancy diversion cover external diameter is less than the internal diameter of one-level stationary ring and one-level stationary seat, and water conservancy diversion cover internal diameter is greater than the external diameter of the corresponding section of axle sleeve;
Described gland is arranged between one-level stationary seat and the secondary stationary seat, one section inboard of gland side medium is connected to one section outside of the atmospheric side of one-level stationary seat, one section inboard of gland atmospheric side is connected to one section outside of the side medium of secondary stationary seat, the stage casing of gland inboard is provided with a bulge loop, and described bulge loop inboard is connected to one section outside of the atmospheric side of water conservancy diversion cover;
Described gland also is provided with cooling water intake tunnel and cooling water exhalant canal, the interior side opening of cooling water intake tunnel is arranged between one-level stationary seat and the aforementioned bulge loop, and the interior side opening of described cooling water exhalant canal is arranged between aforementioned bulge loop and the level stationary seat.
According to slag stock pump provided by the utility model mechanical seal, be provided with stop pin between described gland and the secondary stationary seat.
According to slag stock pump provided by the utility model mechanical seal, be provided with between described secondary rotating ring and the driving ring and be used to seal
The shape circle.
According to slag stock pump provided by the utility model mechanical seal, described one-level rotating ring, one-level stationary ring, secondary stationary ring and secondary rotating ring adopt high hardness, and high strength, the Hardmetal materials manufacturing of shock-resistant load.
The beneficial effects of the utility model are:
1, sealing friction pair is selected high hardness for use, and high strength, the Hardmetal materials of shock-resistant load, and do not adopt common SiC material, though because SiC material hardness is very high, fragility is big, on the slag stock pump, the impact of the high hardness material that subjects to condense and destroying; Structurally, change original single end face structure, be designed to add the series-mode frame of sparge water, can cool off flushing to primary seal on the one hand, a small amount of medium that primary seal can be leaked out simultaneously takes waste treating equipment to and handles, and avoids directly leaking into environment.Be applied to high solids, the slag stock pump mechanical seal of high hardness particle medium.
2, structurally, change original single end face structure, be designed to add special two balance tandem mechanical seal structures of sparge water, no matter be that pressure medium is higher than A chamber (seeing also Fig. 1) pressure, or the A cavity pressure is higher than pressure medium, can both play good sealing effect), add the sparge water structure simultaneously and can cool off flushing to primary seal on the one hand, a small amount of medium that primary seal can be leaked out simultaneously takes waste treating equipment to and handles, and avoids directly leaking into environment.Therefore, make the sealing of this form can be applicable to the slag stock pump of multiple operational condition, and the life-span is brought up to half a year to one year.
In sum, the utility model is fit to be applied to high solids, the slag stock pump mechanical seal of high hardness particle medium.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1, axle sleeve, 2, axle, 3, the one-level rotating ring, 4, the one-level stationary ring, 5, the water conservancy diversion cover, 6, the one-level stationary seat, 7, gland, 8, the secondary stationary seat, 9, stop pin, 10, the secondary stationary ring, 11, the secondary rotating ring, 12,
Shape circle, 13, driving ring, 14, Cock screw, 15, the cooling water intake tunnel, 16, the cooling water exhalant canal.
Embodiment:
Below in conjunction with Figure of description this mode of execution is further specified:
As shown in Figure 1, this slag stock pump mechanical seal comprises being set in outside the axle 2, with axle 2 co-rotational axle sleeves 1, also comprises one-level end face seal, secondary end face seal and cooling flushing mechanism; The tandem end face seal structure is one in front and one in back formed in one-level end face seal, secondary end face seal, and the cooling flushing mechanism is arranged between one-level end face seal and the secondary end face seal; Atmospheric side one end of axle sleeve 1 also is provided with driving ring 13, and driving ring 13 is connected to atmospheric side one end of axle sleeve 1, and it also is provided with Cock screw 14.
The one-level end face seal comprises one-level rotating ring 3, one-level stationary ring 4 and one-level stationary seat 6; One-level stationary seat 6 is sheathed on one section outside of the side medium of axle sleeve 1, and one-level rotating ring 3, one-level rotating ring 4 are arranged between axle sleeve 1 and the one-level stationary seat 6; One-level stationary ring 4 is provided with spring with one-level stationary seat 6.
The secondary end face seal comprises secondary stationary seat 8, secondary stationary ring 10 and secondary rotating ring 11; Secondary stationary seat 8 is sheathed on one section outside of the atmospheric side of axle sleeve 1, and secondary stationary ring 10 and secondary rotating ring 11 are arranged between secondary stationary seat 8 and the driving ring 13; Be provided with spring between secondary stationary seat 8 and the secondary stationary ring 10; The internal diameter of secondary stationary seat 8 and secondary stationary ring 10 is greater than the external diameter of axle sleeve 1 corresponding section.
The cooling flushing mechanism comprises water conservancy diversion cover 5 and gland 7; Water conservancy diversion cover 5 is sheathed between axle sleeve 1 and the one-level stationary seat 6, and water conservancy diversion overlaps 5 side mediums, one end and is positioned at one-level stationary ring 4 inboards, and water conservancy diversion overlaps the internal diameter of 5 external diameters less than one-level stationary ring 4 and one-level stationary seat 6, and water conservancy diversion overlaps the external diameter of 5 internal diameters greater than corresponding its section of setting of axle sleeve;
Be provided with stop pin 9 between gland 7 and the secondary stationary seat 8.
Be provided with between secondary rotating ring 11 and the driving ring 13 and be used to seal
Shape circle 12.
Between axle sleeve 1 and the axle 2, between axle sleeve 1 and the one-level rotating ring 3, between one-level stationary ring 4 and the one-level stationary seat 6, between one-level stationary seat 6 and the gland 7, between gland 7 and the secondary stationary seat 8, be provided with seal ring between secondary stationary seat 8 and the secondary stationary ring 10.
One-level rotating ring 3, one-level stationary ring 4, secondary stationary ring 10 and secondary rotating ring 11 adopt high hardness, and high strength, the Hardmetal materials manufacturing of shock-resistant load.
Claims (6)
1. slag stock pump mechanical seal comprises being set in outside the axle (2), with the co-rotational axle sleeve of axle (2) (1), it is characterized in that: also comprise one-level end face seal, secondary end face seal and cooling flushing mechanism; The tandem end face seal structure is one in front and one in back formed in described one-level end face seal, secondary end face seal, and described cooling flushing mechanism is arranged between one-level end face seal and the secondary end face seal; Atmospheric side one end of described axle sleeve (1) also is provided with driving ring (13), and described driving ring (13) is connected to atmospheric side one end of axle sleeve (1), and driving ring (13) also is provided with Cock screw (14).
2. slag stock pump according to claim 1 mechanical seal is characterized in that: described one-level end face seal comprises one-level rotating ring (3), one-level stationary ring (4) and one-level stationary seat (6); Described one-level stationary seat (6) is sheathed on one section outside of the side medium of described axle sleeve (1), and described one-level rotating ring (3), one-level rotating ring (4) are arranged between axle sleeve (1) and the one-level stationary seat (6); One-level stationary ring (4) is provided with spring with one-level stationary seat (6).
3. slag stock pump according to claim 1 mechanical seal is characterized in that: described secondary end face seal comprises secondary stationary seat (8), secondary stationary ring (10) and secondary rotating ring (11); Described secondary stationary seat (8) is sheathed on one section outside of the atmospheric side of described axle sleeve (1), and described secondary stationary ring (10) and secondary rotating ring (11) are arranged between secondary stationary seat (8) and the described driving ring (13); Be provided with spring between secondary stationary seat (8) and the secondary stationary ring (10); The internal diameter of secondary stationary seat (8) and secondary stationary ring (10) is greater than the external diameter of the corresponding section of axle sleeve (1).
4. slag stock pump according to claim 1 mechanical seal is characterized in that:
Described cooling flushing mechanism comprises water conservancy diversion cover (5) and gland (7); Described water conservancy diversion cover (5) is sheathed between axle sleeve (1) and the one-level stationary seat (6), water conservancy diversion cover (5) side medium one end is positioned at one-level stationary ring (4) inboard, water conservancy diversion cover (5) external diameter is less than the internal diameter of one-level stationary ring (4) and one-level stationary seat (6), and water conservancy diversion cover (5) internal diameter is greater than the external diameter of the corresponding section of axle sleeve;
Described gland (7) is arranged between one-level stationary seat (6) and the secondary stationary seat (8), one section inboard of gland (7) side medium is connected to one section outside of the atmospheric side of one-level stationary seat (6), one section inboard of gland (7) atmospheric side is connected to one section outside of the side medium of secondary stationary seat (8), the inboard stage casing of gland (7) is provided with a bulge loop, and described bulge loop inboard is connected to one section outside of the atmospheric side of water conservancy diversion cover (5);
Described gland (7) also is provided with cooling water intake tunnel (15) and cooling water exhalant canal (16), the interior side opening of cooling water intake tunnel (15) is arranged between one-level stationary seat (6) and the aforementioned bulge loop, and the interior side opening of described cooling water exhalant canal (16) is arranged between aforementioned bulge loop and the level stationary seat (8).
5. slag stock pump according to claim 1 mechanical seal is characterized in that: be provided with stop pin (9) between described gland (7) and the secondary stationary seat (8).
6. slag stock pump according to claim 1 mechanical seal is characterized in that: be provided with the O shape circle (12) that is used to seal between described secondary rotating ring (11) and the driving ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020106206XU CN201650836U (en) | 2010-02-02 | 2010-02-02 | Mechanical seal for slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020106206XU CN201650836U (en) | 2010-02-02 | 2010-02-02 | Mechanical seal for slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650836U true CN201650836U (en) | 2010-11-24 |
Family
ID=43116071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020106206XU Expired - Fee Related CN201650836U (en) | 2010-02-02 | 2010-02-02 | Mechanical seal for slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650836U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573687A (en) * | 2013-10-31 | 2014-02-12 | 陈潜 | Built-in type double mechanical seal structure of plastic pump |
| CN104863890A (en) * | 2015-05-30 | 2015-08-26 | 山东钢铁股份有限公司 | Mechanical seal device for high-temperature and high-pressure forced hot water circulating pump |
| CN105221472A (en) * | 2015-09-14 | 2016-01-06 | 贵州泰瑞特电力设备有限公司 | Flushing type silicon carbide Sealing |
| CN106468290A (en) * | 2015-08-20 | 2017-03-01 | 陕西煤业化工集团(上海)胜帮化工技术有限公司 | The mechanical seal rinsing device and method of centrifugal pump high-temp high-viscosity working media |
-
2010
- 2010-02-02 CN CN201020106206XU patent/CN201650836U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573687A (en) * | 2013-10-31 | 2014-02-12 | 陈潜 | Built-in type double mechanical seal structure of plastic pump |
| CN104863890A (en) * | 2015-05-30 | 2015-08-26 | 山东钢铁股份有限公司 | Mechanical seal device for high-temperature and high-pressure forced hot water circulating pump |
| CN104863890B (en) * | 2015-05-30 | 2017-04-19 | 山东钢铁股份有限公司 | Mechanical seal device for high-temperature and high-pressure forced hot water circulating pump |
| CN106468290A (en) * | 2015-08-20 | 2017-03-01 | 陕西煤业化工集团(上海)胜帮化工技术有限公司 | The mechanical seal rinsing device and method of centrifugal pump high-temp high-viscosity working media |
| CN106468290B (en) * | 2015-08-20 | 2020-04-03 | 胜帮科技股份有限公司 | Mechanical seal flushing device and method for high-temperature high-viscosity working medium of centrifugal pump |
| CN105221472A (en) * | 2015-09-14 | 2016-01-06 | 贵州泰瑞特电力设备有限公司 | Flushing type silicon carbide Sealing |
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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: 20101124 Termination date: 20150202 |
|
| EXPY | Termination of patent right or utility model |