CN102635570B - Integral mechanical sealing device for pump - Google Patents
Integral mechanical sealing device for pump Download PDFInfo
- Publication number
- CN102635570B CN102635570B CN 201210125524 CN201210125524A CN102635570B CN 102635570 B CN102635570 B CN 102635570B CN 201210125524 CN201210125524 CN 201210125524 CN 201210125524 A CN201210125524 A CN 201210125524A CN 102635570 B CN102635570 B CN 102635570B
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- ring
- spring
- pump
- pump shaft
- base
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- Mechanical Sealing (AREA)
Abstract
The invention discloses an integral mechanical sealing device for a pump. The integral mechanical sealing device comprises a spring base, a spring located in the spring base, a movable ring base with one end clamped with the spring base, a movable ring which is clamped with the other end of the movable ring base and rotates at the same speed of a pump shaft, and a fixed ring assembly which is fixed relative to a motor base, wherein the spring base, the spring, the movable ring base, the movable ring and the fixed ring assembly are sequentially sleeved along the pump shaft in a direction from an impeller to the motor base. The movable ring base comprises a first body which is respectively clamped with the spring base and the movable ring, and a second body abutted against the spring. A sealing ring is arranged between the second body and the movable ring; the cross section, which passes through an axial lead of the pump shaft, of the sealing ring is a vertical 8-shaped; and the sealingring is integrally structured. By utilizing the technical scheme, compared with the prior art, the integral mechanical sealing device for the pump provided by the invention has the following advantages: 1, the integral mechanical sealing device is wide in application range, simple in assembly, easy to install and replace, and convenient in maintenance; and 2, the integral 8-shaped ring is mountedin a sealing chamber to seal, so that the possibility of sealing leakage is greatly reduced.
Description
Technical field
The present invention relates to a kind of pump integrated type mechanical seal device.
Background technique
With regard to existing integrated type mechanical seal device, when pump turned round, mechanical seal was close to the frictional force of deciding screw and pump shaft and drives the mechanical seal running; One O type circle is housed, when O type circle is under pressure, during the factor affecting of temperature etc., easily make sealed medium pass this road O type circle and leak easily by rotating shaft, rotating ring, stationary ring in the mechanical seal; Moreover the frictional force of Cock screw also is subjected to the influence of other factors easily and lost efficacy, thereby the machine envelope can't be run well.In addition on the existing mechanical sealing theory in order to alleviate cost (cost that comprehensively gets off not reduce), stationary ring all adopts cemented carbide and stainless steel high temperature to inlay, the peripheral seal form that adds an O type circle more then, many so on the contrary one stealthy source of leaks.
Cemented carbide stationary ring and stainless steel are often inlayed the place because the influence of the factors such as different and variation of temperature of medium causes the junction seepage, influence the normal use of this equipment, and the periphery only one O type circle seal leakage problem also easily take place.
The surplus of existing mechanical seal arrangement up-down adjustment is less in addition, difficulty of processing and the precision of supporting part have with it been increased, if having surpassed the installation of mechanical seal when installing regulates highly then does not reach the effect of sealing, the too small meeting of adjustable range causes that the frictional force between the dynamic and static ring strengthens, thereby has shortened the working time of mechanical seal greatly.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of pump integrated type mechanical seal device.
In order to reach above purpose, the technical solution used in the present invention is: pump integrated type mechanical seal device, it comprises along pump shaft and is socketed in spring seat on the pump shaft successively by impeller phase motor cabinet direction, be positioned at the spring of spring seat, the rotating seat of one end and the clamping of spring seat phase, with the other end phase clamping of rotating seat and the rotating ring that rotates with speed with pump shaft, relative static static components with motor cabinet, rotating seat comprises respectively first body with spring seat and the clamping of rotating ring phase, second body that offsets with spring, be provided with seal ring between second body and the rotating ring, the cross section of passing through the pump shaft shaft axis of seal ring is 8 upright fonts, and seal ring is Construction integration.
Further, interstage sleeve is installed on the pump shaft, an end and the impeller of interstage sleeve join, and the other end and the spring seat of interstage sleeve join.
Further, second body has a depressed part, forms the space of a closure between depressed part and the rotating ring, and seal ring is arranged in this closed space.
Further, static components comprises with the contacted stationary ring of rotating ring, is the stationary ring circle of concave shape, and an end that is connected with stationary ring of stationary ring circle caves inward and forms first recess, and stationary ring is positioned at this first recess, motor cabinet has second recess that caves inward, and the stationary ring circle is positioned at this second recess.
Further, the outer side surface of stationary ring circle is provided with multiple tracks alignment outer lug and snap in the seal ring of motor cabinet centered by the pump shaft shaft axis.
Further, stationary ring is integral type, and its material is cemented carbide.
Further, an end of first body has a plurality of first card base the other ends and has a plurality of second card bases, and spring seat has a plurality of and the 3rd card base interlaced clamping of first card base, and rotating ring has a plurality of and the 4th card base interlaced clamping of second card base.
Owing to adopted technique scheme, pump of the present invention integrated type mechanical seal device compared with prior art has the following advantages:
1, pump of the present invention integrated type mechanical seal device, applied range, simultaneously, assembling is simple, is easy to disassembling, assembling and replacing, is convenient to maintenance;
2, pump of the present invention integrated type mechanical seal device, the 8 font circles sealing that integral type is housed in the closed chamber makes may reducing greatly of seal leakage;
3, pump of the present invention is the integral type hard alloy piece with the stationary ring in the integrated type mechanical seal device, does not have the shortcoming of the mechanical seal described in the background technique, has reduced a potential source of leaks at existing machinery closed set place;
4, pump of the present invention is one " recessed " font Sealing with the stationary ring circle in the integrated type mechanical seal device, and on the outer side surface of this seal ring, namely on the sealing surface, the purpose that arranges of seal ring is to increase multiple tracks protection barrier, to increase sealing effect;
5. pump of the present invention can reduce the machining accuracy of kit with making the adjusting surplus of spring increase by interstage sleeve is set in the integrated type mechanical seal device.
Description of drawings
Accompanying drawing 1 is the complete section organigram of pump of the present invention with the integrated type mechanical seal device;
Accompanying drawing 2 is the partial view A of pump of the present invention with the integrated type mechanical seal device.
Number in the figure is:
1, pump shaft; 2, motor cabinet; 3, stationary ring circle; 31, seal ring; 4, stationary ring; 5, rotating ring; 6, rotating seat; 61, first body; 62, second body; 63, first card base; 64, second card base; 7, seal ring; 8, spring seat; 81, the 3rd card base; 9, spring; 10, interstage sleeve.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
2 structural representation as can be seen from accompanying drawing 1 to accompanying drawing, the invention provides pump integrated type mechanical seal device, it comprises along pump shaft 1 and is socketed in the interstage sleeve 10 on the pump shaft 1 by impeller successively to motor cabinet 2 directions (be among Fig. 1 direction) from the bottom to top, spring seat 8, be positioned at the spring 9 of spring seat 8, the rotating seat 6 of one end and spring seat 8 phase clampings, with the other end phase clamping of rotating seat 6 and the rotating ring 5 that rotates with speed with pump shaft 1, with motor cabinet 2 relative static static components, rotating seat 6 comprises respectively first body 61 with spring seat 8 and rotating ring 5 phase clampings, second body 62 that offsets with spring 9, be provided with seal ring 7 between second body 62 and the rotating ring 5, the cross section of passing through pump shaft 1 shaft axis of seal ring 7 is 8 upright fonts, and seal ring 7 is Construction integration.Second body 62 has a depressed part, form the space of a closure between depressed part and the rotating ring 5, seal ring 7 is arranged in this closed space, seal ring 7 is different from existing O-ring seals, this seal ring 7 is the integral seal circles that are combined into one by the O shape circle that two cross sections are big semicircle, a same seal ring can play the double seal effect, makes sealing more reliable.
Bottom and the impeller of interstage sleeve 1 join.
The bottom of first body 61 has a plurality of first card bases 63, top has a plurality of second card bases 64, the top of spring seat 8 has a plurality of and the 3rd card bases 81 63 interlaced clampings of first card base, the bottom of rotating ring 5 has a plurality of and the 4th card bases (not shown in the accompanying drawing) the 64 interlaced clampings of second card base, and the quantity of first card base 63 in the present embodiment, second card base 64, the 3rd card base and the 3rd card base 81 respectively is three.
This pump with the working principle of integrated type mechanical seal device is: when pump turns round, pump shaft 1 drives interstage sleeve 10, interstage sleeve 10 drives spring seat 8 and rotates, spring 9 is compressive states and pushes against on second body 62 of rotating seat 6 during work, the clamping that misplaces between first card base 63 of the 3rd card base 81 of spring seat 8 and rotating seat 6 like this, thus drive rotating seat 6 runnings; The dislocation clamping of the 4th card base of second card base 64 by rotating seat 6 and rotating ring 5 drives rotating ring 5 and rotates together again.
In the present embodiment, spring seat 8 and rotating seat 6 all adopt stainless steel materials punching press, stretching, welding fabrication, and easy to manufacture, cost is low, highly versatile.
Sealing between rotating ring 5 and the stationary ring 4 by the calculating of science, adopts rational sealed width to make it sealing effect and the maximum radiating effect that reaches best.
Static components comprises the stationary ring 4 that is positioned at rotating ring 5 tops, the stationary ring circle 3 that is concave shape, the lower surface of stationary ring circle 3 caves inward and forms first recess, stationary ring 4 is positioned at this first recess, and motor cabinet 2 lower surfaces have second recess that caves inward, and stationary ring circle 3 is positioned at this second recess.
Because stationary ring 4 is integral type hard alloy pieces, there is not the problem that the place reveals of inlaying, and the outer side surface of stationary ring circle 3 is provided with multiple tracks alignment outer lug and snap in the seal ring 31 of motor cabinet 2 centered by pump shaft 1 shaft axis, in the present embodiment be, seal ring 31 has three roads, the cross section of seal ring 31 is horizontal V-arrangement, and the reliability of sealing increases greatly.
This pump adopts the built-in type form with the integrated type mechanical seal device, and a whole set of mechanical seal all is immersed in the used medium, need not additionally to add cooling mechanism.
Above mode of execution only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. pump integrated type mechanical seal device, it is characterized in that: it comprises along pump shaft (1) and is socketed in spring seat (8) on the described pump shaft (1) by impeller successively to motor cabinet (2) direction, be positioned at the spring (9) of described spring seat (8), the rotating seat (6) of one end and described spring seat (8) phase clamping, with the other end phase clamping of described rotating seat (6) and the rotating ring (5) that rotates with speed with described pump shaft (1), relative static static components with motor cabinet (2), described rotating seat (6) comprises respectively first body (61) with spring seat (8) and rotating ring (5) phase clamping, second body (62) that offsets with described spring (9), be provided with seal ring (7) between described second body (62) and the rotating ring (5), the cross section of passing through pump shaft (1) shaft axis of described seal ring (7) is 8 upright fonts, and described seal ring (7) is Construction integration; Interstage sleeve (10) is installed on the described pump shaft (1), and an end and the described impeller of described interstage sleeve (1) join, and the other end of described interstage sleeve (10) and described spring seat (8) join; Described static components comprises with the contacted stationary ring of described rotating ring (5) (4), is the stationary ring circle (3) of concave shape, an end that is connected with stationary ring (4) of described stationary ring circle (3) caves inward and forms first recess, described stationary ring (4) is positioned at this first recess, described motor cabinet (2) has second recess that caves inward, and described stationary ring circle (3) is positioned at this second recess; The outer side surface of described stationary ring circle (3) is provided with multiple tracks alignment outer lug and snap in the seal ring (31) of described motor cabinet (2) centered by described pump shaft (1) shaft axis; Described stationary ring (4) is Construction integration, and its material is cemented carbide.
2. pump according to claim 1 integrated type mechanical seal device, it is characterized in that: described second body (62) has a depressed part, form the space of a closure between described depressed part and the rotating ring (5), described seal ring (7) is arranged in this closed space.
3. pump according to claim 1 integrated type mechanical seal device, it is characterized in that: an end of described first body (61) has a plurality of first card bases (63) the other end and has a plurality of second card bases (64), described spring seat (8) has the 3rd card base (81) of the interlaced clamping of a plurality of and described first card base (63), and described rotating ring (5) has the 4th card base of the interlaced clamping of a plurality of and described second card base (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210125524 CN102635570B (en) | 2012-04-26 | 2012-04-26 | Integral mechanical sealing device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210125524 CN102635570B (en) | 2012-04-26 | 2012-04-26 | Integral mechanical sealing device for pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102635570A CN102635570A (en) | 2012-08-15 |
| CN102635570B true CN102635570B (en) | 2013-08-21 |
Family
ID=46620097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210125524 Expired - Fee Related CN102635570B (en) | 2012-04-26 | 2012-04-26 | Integral mechanical sealing device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102635570B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343635B (en) * | 2017-01-22 | 2023-11-07 | 襄阳五二五化工机械有限公司 | Mechanical seal suitable for pump of high solid content high crystallization station |
| CN112502993A (en) * | 2020-11-27 | 2021-03-16 | 瑞声新能源发展(常州)有限公司科教城分公司 | Miniature water pump and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1074036A (en) * | 1964-07-08 | 1967-06-28 | Bbc Brown Boveri & Cie | Improvements in and relating to seals for rotating shafts |
| CN200946589Y (en) * | 2006-05-19 | 2007-09-12 | 李阳 | Centrifugal pump |
| CN101201109A (en) * | 2006-12-12 | 2008-06-18 | 郑州华能电力设备有限公司 | Mechanical sealing device capable of changing specific pressure |
| CN201554689U (en) * | 2009-10-15 | 2010-08-18 | 骆建国 | Mechanical sealing element with rotating force |
| CN202628600U (en) * | 2012-04-26 | 2012-12-26 | 张家港市恩达泵业有限公司 | Integral type mechanical seal device for pump |
-
2012
- 2012-04-26 CN CN 201210125524 patent/CN102635570B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1074036A (en) * | 1964-07-08 | 1967-06-28 | Bbc Brown Boveri & Cie | Improvements in and relating to seals for rotating shafts |
| CN200946589Y (en) * | 2006-05-19 | 2007-09-12 | 李阳 | Centrifugal pump |
| CN101201109A (en) * | 2006-12-12 | 2008-06-18 | 郑州华能电力设备有限公司 | Mechanical sealing device capable of changing specific pressure |
| CN201554689U (en) * | 2009-10-15 | 2010-08-18 | 骆建国 | Mechanical sealing element with rotating force |
| CN202628600U (en) * | 2012-04-26 | 2012-12-26 | 张家港市恩达泵业有限公司 | Integral type mechanical seal device for pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102635570A (en) | 2012-08-15 |
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Granted publication date: 20130821 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |