CN108730224A - A kind of non-contact chemical industry pump seal - Google Patents
A kind of non-contact chemical industry pump seal Download PDFInfo
- Publication number
- CN108730224A CN108730224A CN201810559829.3A CN201810559829A CN108730224A CN 108730224 A CN108730224 A CN 108730224A CN 201810559829 A CN201810559829 A CN 201810559829A CN 108730224 A CN108730224 A CN 108730224A
- Authority
- CN
- China
- Prior art keywords
- spring base
- rotating ring
- ring
- stationary ring
- chemical industry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Abstract
The invention discloses a kind of non-contact chemical industry pump seals,It is related to technical field of sealing technology,Including flange body,Seal assembly and gland,The seal assembly includes separate unit rank stationary ring,Interior rotating ring,Spring base,Outer rotating ring and outer stationary ring,The separate unit rank stationary ring,Interior rotating ring,Spring base,Outer rotating ring and outer stationary ring are installed in flange body and are limited by the gland of flange body right end successively from left to right,Spring base is T-shaped,Dynamic shell is also socketed on spring base,The both ends of dynamic shell are contacted with interior rotating ring and outer rotating ring respectively,Silicon carbide axle sleeve is also equipped at the inner wall of seal assembly,Silicon carbide axle sleeve is fixed by screw and spring base,The present invention is by being arranged by separate unit rank stationary ring,Interior rotating ring,The seal assembly of spring base and outer rotating ring composition,It is equipped with dynamic shell again,It can realize effective sealing of chemical pump shaft member,And by means of the effect of spring base,It is built-in on spring base to have elastic component,It can ensure the close contact of rotating ring and stationary ring,Improve sealing effect.
Description
Technical field
The present invention relates to technical field of sealing technology, and in particular to a kind of non-contact chemical industry pump seal.
Background technology
Currently, chemical pump is mostly for conveying acid or alkalinity chemical medium, and these media with chemical industry pump seal
After part contact, the components such as the spring in sealing element are easily corroded, especially under strong acid or the effect of highly basic chemical medium, sealing element
Faster, sealing element leads to sealing element seal failure to the speed being corroded after being corroded, and causes chemical industry bump leakage, not only influences chemical industry
The normal work of pump also shortens the service life of sealing element.
China Patent Publication No. is that CN103362856A discloses a kind of high temperature chemical pump sealing device, is equipped with filler pressure
Lid, filler, high temperature P " T " word FE dynamic seals, the gland are mounted on pump case left end, are sleeved on transmission shaft, and filler
It is fixed by bolts on pump case on the left of gland, is the gap of pump case and transmission shaft on the right side of gland, filler is filled in gap,
The filler is made of asbestos leaching graphite material, and high temperature P " T " word FE dynamic seals, high temperature P " T " words FE are equipped on the right side of filler
Dynamic seal is sleeved on transmission shaft, and is fixed on the right side of pump case, and pump case right end installs bearing.But its filler part-time is long
It is easy to loosen, leakproofness still has deficiency.
China Patent Publication No. is that CN205025813U discloses a kind of mechanical seal chemical pump, including pump shaft, shell group
Part and impeller, axle sleeve, rotating seat, rotating ring, stationary ring and elastomeric element in casing assembly, impeller are fixed on the one of pump shaft
End, pump shaft are equipped with the pump shaft shaft shoulder, and rotating seat is set in outside pump shaft with axle sleeve, and rotating seat is connected with axle sleeve and is located at impeller and pump
Between the axis shaft shoulder, rotating seat can be rotated by the clamping of impeller and the pump shaft shaft shoulder and together with axle sleeve, rotating ring, stationary ring and elastic portion
Part is set in outside axle sleeve, and one end of rotating ring connects with rotating seat, and the other end of rotating ring is abutted with one end of stationary ring, stationary ring it is another
One end is abutted with one end of elastomeric element, and the other end of elastomeric element is abutted with casing assembly.As a result, when seal face because it is long when
Between when relatively rotating and being worn, elastomeric element can play the role of buffer compensation, and the elastic force of elastomeric element makes sealed end
Face remains the state of fitting closely.Reasonable in design, service life is long.Although its use seal assembly realize it is close
Envelope, but its seal component architecture is complex, installation maintenance is inconvenient.
Invention content
It is caused by the prior art above-mentioned to solve the purpose of the present invention is to provide a kind of non-contact chemical industry pump seal
Defect.
A kind of non-contact chemical industry pump seal, including flange body, seal assembly and gland, the seal assembly include single
Step stationary ring, interior rotating ring, spring base, outer rotating ring and outer stationary ring, the separate unit rank stationary ring, interior rotating ring, spring base, outer rotating ring and outer
Stationary ring is installed in flange body and is limited by the gland of flange body right end successively from left to right, the spring base be it is T-shaped,
Dynamic shell is also socketed on spring base, the both ends of dynamic shell are contacted with interior rotating ring and outer rotating ring respectively, are also pacified at the inner wall of seal assembly
Equipped with silicon carbide axle sleeve, silicon carbide axle sleeve is fixed by screw and spring base, and activity is separately installed at left and right sides of spring base
Media end throw-out collar and atmosphere end throw-out collar and several springs are installed between the two.
Preferably, an outer O-ring is additionally provided between the gland and flange body.
Preferably, the separate unit rank stationary ring is " L " font, and the left side of flange body is equipped with and coordinates with separate unit rank stationary ring
Interior step surface.
Preferably, it is additionally provided with gasket seal between the separate unit rank stationary ring and interior step surface.
Preferably, there are gaps between the spring base and the inner wall of flange body.
Preferably, the gland is connect by screw with flange body.
The advantage of the invention is that:The present invention is made of by being arranged separate unit rank stationary ring, interior rotating ring, spring base and outer rotating ring
Seal assembly, then be equipped with dynamic shell, can realize effective sealing of chemical pump shaft member, and by means of the effect of spring base,
It is built-in on spring base to have elastic component, it is ensured that the close contact of rotating ring and stationary ring improves sealing effect.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein, 1- flange bodies, 2- separate unit rank stationary rings, rotating ring in 3-, 4- spring bases, 5- move shell, the outer rotating rings of 6-, 7- glands,
The outer O-rings of 8-, step surface in 9-, 10- gasket seals, the outer stationary rings of 11-, 12- silicon carbide axle sleeves, 13- media end throw-out collars, 14- are big
Gas end throw-out collar, 15- springs.
Specific implementation mode
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to
Specific implementation mode, the present invention is further explained.
Embodiment 1
As shown in Figure 1, a kind of non-contact chemical industry pump seal, including flange body 1, seal assembly and gland 7, it is described close
Sealing assembly includes separate unit rank stationary ring 2, interior rotating ring 3, spring base 4, outer rotating ring 6 and outer stationary ring 11, the separate unit rank stationary ring 2, interior dynamic
Ring 3, spring base 4, outer rotating ring 6 and outer stationary ring 11 are installed on successively from left to right in flange body 1 and by the pressure of 1 right end of flange body
Lid 7 limits, and the spring base 4 is T-shaped, and dynamic shell 5 is also socketed on spring base 4, move the both ends of shell 5 respectively with interior rotating ring 3
It is contacted with outer rotating ring 6, is also equipped with silicon carbide axle sleeve 12 at the inner wall of seal assembly, silicon carbide axle sleeve 12 passes through screw and spring
Seat 4 is fixed, and the left and right sides of spring base 4 is separately installed with movable media end throw-out collar 13 and atmosphere end throw-out collar 14 and between the two
Several springs 15 are installed.At work, inner wall is also equipped with an axle sleeve, and one is additionally provided between the gland 7 and flange body 1
Outer O-ring 8 further increases its sealing effect, and the separate unit rank stationary ring 2 is " L " font, and the left side of flange body 1 is equipped with
The interior step surface 9 coordinated with separate unit rank stationary ring 2, gasket seal 10 is additionally provided between the separate unit rank stationary ring 2 and interior step surface 9,
Further increase its sealing effect.
Embodiment 2
As shown in Figure 1, a kind of non-contact chemical industry pump seal, including flange body 1, seal assembly and gland 7, it is described close
Sealing assembly includes separate unit rank stationary ring 2, interior rotating ring 3, spring base 4, outer rotating ring 6 and outer stationary ring 11, the separate unit rank stationary ring 2, interior dynamic
Ring 3, spring base 4, outer rotating ring 6 and outer stationary ring 11 are installed on successively from left to right in flange body 1 and by the pressure of 1 right end of flange body
Lid 7 limits, and the spring base 4 is T-shaped, and dynamic shell 5 is also socketed on spring base 4, move the both ends of shell 5 respectively with interior rotating ring 3
It is contacted with outer rotating ring 6, is also equipped with silicon carbide axle sleeve 12 at the inner wall of seal assembly, silicon carbide axle sleeve 12 passes through screw and spring
Seat 4 is fixed, and the left and right sides of spring base 4 is separately installed with movable media end throw-out collar 13 and atmosphere end throw-out collar 14 and between the two
Several springs 15 are installed.At work, inner wall is also equipped with an axle sleeve, and one is additionally provided between the gland 7 and flange body 1
Outer O-ring 8 further increases its sealing effect, and the separate unit rank stationary ring 2 is " L " font, and the left side of flange body 1 is equipped with
The interior step surface 9 coordinated with separate unit rank stationary ring 2, gasket seal 10 is additionally provided between the separate unit rank stationary ring 2 and interior step surface 9,
Further increase its sealing effect.
In the present embodiment, there are gaps between the spring base 4 and the inner wall of flange body 1, form a cavity, favorably
In heat dissipation, the gland 7 is connect by screw with flange body 1.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, all things considered are all merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (6)
1. a kind of non-contact chemical industry pump seal, which is characterized in that including flange body (1), seal assembly and gland (7), institute
It includes separate unit rank stationary ring (2), interior rotating ring (3), spring base (4), outer rotating ring (6) and outer stationary ring (11), the list to state seal assembly
Step stationary ring (2), interior rotating ring (3), spring base (4), outer rotating ring (6) and outer stationary ring (11) are installed on flange body successively from left to right
(1) it is limited in and by the gland (7) of flange body (1) right end, the spring base (4) is T-shaped, and spring base also covers on (4)
It is connected to dynamic shell (5), the both ends of dynamic shell (5) are contacted with interior rotating ring (3) and outer rotating ring (6) respectively, are also pacified at the inner wall of seal assembly
Equipped with silicon carbide axle sleeve (12), silicon carbide axle sleeve (12) is fixed by screw and spring base (4), the left and right sides of spring base (4)
It is separately installed with movable media end throw-out collar (13) and atmosphere end throw-out collar (14) and several springs (15) is installed between the two.
2. a kind of non-contact chemical industry pump seal according to claim 1, it is characterised in that:The gland (7) and flange
An outer O-ring (8) is additionally provided between body (1).
3. a kind of non-contact chemical industry pump seal according to claim 2, it is characterised in that:The separate unit rank stationary ring (2)
For " L " font, and the left side of flange body (1) is equipped with the interior step surface (9) coordinated with separate unit rank stationary ring (2).
4. a kind of non-contact chemical industry pump seal according to claim 3, it is characterised in that:The separate unit rank stationary ring (2)
Gasket seal (10) is additionally provided between interior step surface (9).
5. a kind of non-contact chemical industry pump seal according to claim 1, it is characterised in that:The spring base (4) and method
There are gaps between the inner wall of blue body (1).
6. a kind of non-contact chemical industry pump seal according to claim 1, it is characterised in that:The gland (7) passes through spiral shell
Nail is connect with flange body (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810559829.3A CN108730224A (en) | 2018-06-02 | 2018-06-02 | A kind of non-contact chemical industry pump seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810559829.3A CN108730224A (en) | 2018-06-02 | 2018-06-02 | A kind of non-contact chemical industry pump seal |
Publications (1)
Publication Number | Publication Date |
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CN108730224A true CN108730224A (en) | 2018-11-02 |
Family
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Family Applications (1)
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CN201810559829.3A Pending CN108730224A (en) | 2018-06-02 | 2018-06-02 | A kind of non-contact chemical industry pump seal |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203023025U (en) * | 2012-11-02 | 2013-06-26 | 任振林 | Double mechanical seal for fluoroplastic pump |
CN203584881U (en) * | 2013-12-04 | 2014-05-07 | 浙江冠宇密封件有限公司 | Water pump sealing assembly |
CN203670781U (en) * | 2013-12-26 | 2014-06-25 | 宁波安铱矢密封有限公司 | Crystallization-prevention double-end-face sealing structure |
CN103994226A (en) * | 2013-08-19 | 2014-08-20 | 天津市富鑫达密封有限公司 | Multi-purpose type packaging double-end-face sealing device for agitated vessel top |
CN204300356U (en) * | 2014-04-24 | 2015-04-29 | 天津市合众电缆桥架有限公司 | A kind of novel back-to-back sealing device |
CN105840834A (en) * | 2016-06-08 | 2016-08-10 | 镇江奥立特机械制造有限公司 | Double-end face mechanical seal |
CN206738156U (en) * | 2016-12-26 | 2017-12-12 | 江苏优纳特机械有限公司 | A kind of new No leakage roots blower sealing device |
CN207333279U (en) * | 2017-09-01 | 2018-05-08 | 石家庄市质盛机械密封有限责任公司 | A kind of slurry discharge pump mechanical seal device |
-
2018
- 2018-06-02 CN CN201810559829.3A patent/CN108730224A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203023025U (en) * | 2012-11-02 | 2013-06-26 | 任振林 | Double mechanical seal for fluoroplastic pump |
CN103994226A (en) * | 2013-08-19 | 2014-08-20 | 天津市富鑫达密封有限公司 | Multi-purpose type packaging double-end-face sealing device for agitated vessel top |
CN203584881U (en) * | 2013-12-04 | 2014-05-07 | 浙江冠宇密封件有限公司 | Water pump sealing assembly |
CN203670781U (en) * | 2013-12-26 | 2014-06-25 | 宁波安铱矢密封有限公司 | Crystallization-prevention double-end-face sealing structure |
CN204300356U (en) * | 2014-04-24 | 2015-04-29 | 天津市合众电缆桥架有限公司 | A kind of novel back-to-back sealing device |
CN105840834A (en) * | 2016-06-08 | 2016-08-10 | 镇江奥立特机械制造有限公司 | Double-end face mechanical seal |
CN206738156U (en) * | 2016-12-26 | 2017-12-12 | 江苏优纳特机械有限公司 | A kind of new No leakage roots blower sealing device |
CN207333279U (en) * | 2017-09-01 | 2018-05-08 | 石家庄市质盛机械密封有限责任公司 | A kind of slurry discharge pump mechanical seal device |
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PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
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RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |