CN104100718A - Mechanical seal device with external spring sheet isolation spring - Google Patents
Mechanical seal device with external spring sheet isolation spring Download PDFInfo
- Publication number
- CN104100718A CN104100718A CN201410312474.XA CN201410312474A CN104100718A CN 104100718 A CN104100718 A CN 104100718A CN 201410312474 A CN201410312474 A CN 201410312474A CN 104100718 A CN104100718 A CN 104100718A
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- China
- Prior art keywords
- spring
- gland
- ring
- shell fragment
- annular isolation
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- Mechanical Sealing (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a mechanical seal device with an external spring sheet isolation spring. The mechanical seal device is characterized in that an annular isolation spring sheet (5) is arranged between a gland (1) and a pump body (A); the inner end of the annular isolation spring sheet (5) is fixedly connected with a static ring seat (22) by a nut press block (24) and a sealing gasket (25) in a sealing way; the static ring seat (22) and a middle cavity (B) of the pump body (A) are isolated by the annular isolation spring sheet (5); a clamping ring (6) is arranged on the front end of the outer ring surface of the static ring seat (22); the inner end of a spiral compensation spring (7) is mounted on the outer end face of the gland (1); grooves (14) are uniformly distributed in the end face of the gland (1); the inner ends of spring shackles (8) are hooked with the ring (6); the outer ends of the spring shackles (8) are hooked with the outer end of the spiral compensation spring (7); the compensation spring (7) drives a static ring assembly (2) by the clamping ring (6) for compensation. According to the mechanical seal device with the external spring sheet isolation spring, the static ring and the pump cavity are isolated by the annular isolation spring sheet 5, the gland (1) and the compensation spring (7) are not in contact with a medium, the effects of protecting the spring and mechanically sealing the gland are realized, the static sealing is formed on the compensation ring static ring assembly 2 by the annular isolation spring sheet 5, the sealing property is good, and the following performance of a compensation ring static ring is not influenced.
Description
Technical field
What the present invention relates to is mechanical seal device, particularly a kind of counterbalance spring external mechanical sealing device.
Background technique
The mechanical seal of counterbalance spring external refers to: counterbalance spring is placed in the mechanical seal outside fluid-encapsulated medium.
The mechanical seal of existing counterbalance spring external is for external by counterbalance spring; between compensated loop and compensated ring adaptor, must be provided with slippage auxiliary seal ring; medium and counterbalance spring are isolated; play protection counterbalance spring and be not subject to dielectric corrosion and because impurity in medium crystallization, medium blocks, and make counterbalance spring lose compensation ability.
Although such structure can play the protective action of medium and counterbalance spring isolation, the effectively corrosion resistance of raising machine envelope, its spacer medium must be realized with slippage seal ring.This has just formed dynamic sealing point, and dynamic sealing point easily leaks with respect to static seal point, and affects the servo-actuated property of compensated loop, require high to rubber slippage seal ring material, the easy ageing failure of rubber slippage seal ring, need to often change, and affects the working life of mechanical seal.This will limit the using scope of this machine envelope to a great extent.
Summary of the invention
The object of the invention is to improve for the shortcoming deficiency of prior art, a kind of shell fragment spacer spring external mechanical sealing device is provided, to overcome the shortcoming deficiency of slippage auxiliary seal ring spacer spring external mechanical sealing device, improve the servo-actuated property of isolating seal and compensated loop, effectively improve working life, to adapt to more wide working condition.
The present invention includes gland 1, static components 2, moving ring assembly 3 and axle sleeve 4, it is characterized in that, static components 2 is encircled by way of compensation, coordinate vertical end face A1 place to be provided with annular isolation shell fragment 5 with the seam of pump housing A at gland 1, a side or the left and right sides at annular isolation shell fragment 5 are provided with sealing gasket, the outer portion of isolating shell fragment 5 is fixed by gland 1 and pump housing A sealing, the vertical end face of the first stopping table 23 of offering on stationary seat 22 outer ring surfaces of the internal ring portion of annular isolation shell fragment 5 and static components 2 coordinates, on the axial plane of stationary seat 22 first stopping tables 23, being provided with nut briquetting 24 and sealing gasket 25 is sealedly and fixedly connected the internal ring portion of annular isolation shell fragment 5 and stationary seat 22, annular isolation shell fragment 5 cuts off chamber B between stationary seat 22 and pump housing A,
Moving ring assembly 3 is fixedly mounted on axle or axle sleeve 4 and coordinates with static components 2, and the kinetic friction ring 31 of moving ring assembly 3 and the static friction ring 21 of static components 2 coordinate;
On stationary seat 22 outer ring surface front ends, (front portion of the first stopping table 23) offers the second stopping table 26, on this second stopping table 26, is provided with snap ring 6, offers hook 61 on snap ring 6;
On the exterior edge face of gland 1 center hole 11, offer spring seat concave station 12, the inner of spiral counterbalance spring 7 is placed on the spring seat concave station 12 of this gland 1 exterior edge face;
On the end face of gland 1, communicate with center hole 11 to be uniformly distributed and have at least three grooves 14, hook 61 hooks of the snap ring 6 on the inner of spring carrier arm 8 and stationary seat 22 outer ring surface front ends, the outer end hook of the outer end of spring carrier arm 8 and spiral counterbalance spring 7, and counterbalance spring 7 is compressed, counterbalance spring 7 drives static components 2 to compensate by snap ring 6.
For protection counterbalance spring 7 and spring carrier arm 8, on the exterior edge face of gland 1, be fixedly connected with and be provided with protecting jacket 9.
The present invention, by adopting annular isolation shell fragment 5 to make to isolate between stationary ring and pump chamber, uses interior medium in mechanical seal ante-chamber C directly not pass through, and machine sealed cover 1 is not contacted with medium with counterbalance spring 7.Reach the effect of protection spring and machine sealed cover, reduce the material corrosion resistance requirement to machine sealed cover 1 and counterbalance spring 7 simultaneously, greatly reduce the use of noble metal, effectively reduce cost.And counterbalance spring 7 can be by the impurity congestion affects spring 7 compensating action power in medium, and can reduce size and the materials of gland 1.
Annular isolation shell fragment 5 of the present invention makes compensated loop static components 2 be static seal, good airproof performance, and do not affect the servo-actuated property of compensated loop.There is no slippage seal ring, overcome the easy ageing failure of rubber slippage seal ring, need to often change, affect the mechanical seal problem in working life, promoted the using scope of machine envelope.
Annular isolation shell fragment 5 of the present invention has compensating element function, and its pressure by medium changes face pressure into and acts in compensated loop static components 2, does the used time losing counterbalance spring 7, also can play certain compensating action, prevents from that seal face from producing very early in the morning to leak.
The present invention has effectively utilized the radial space of pump chamber, and particularly suitable axial space urine is used in the occasion that mechanical seal device is installed.
Brief description of the drawings
Fig. 1 is embodiment of the present invention structural representation.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is stationary seat 22 structural representations.
Fig. 4 is snap ring 6 structural representations.
Fig. 5 is gland 1 structural representation.
Fig. 6 is spring carrier arm 8 structural representations.
Embodiment
The present invention includes gland 1, static components 2, moving ring assembly 3 and axle sleeve 4, static components 2 is encircled by way of compensation, coordinate vertical end face A1 place to be provided with annular isolation shell fragment 5 with the seam of pump housing A at gland 1, a side or the left and right sides at annular isolation shell fragment 5 are provided with sealing gasket, the outer portion of isolating shell fragment 5 is fixed by gland 1 and pump housing A sealing, the vertical end face of the first stopping table 23 of offering on stationary seat 22 outer ring surfaces of the internal ring portion of annular isolation shell fragment 5 and static components 2 coordinates, on the axial plane of stationary seat 22 first stopping tables 23, being provided with nut briquetting 24 and sealing gasket 25 is sealedly and fixedly connected the internal ring portion of annular isolation shell fragment 5 and stationary seat 22, annular isolation shell fragment 5 cuts off chamber B between stationary seat 22 and pump housing A, moving ring assembly 3 is fixedly mounted on axle or axle sleeve 4 and coordinates with static components 2, and the kinetic friction ring 31 of moving ring assembly 3 and the static friction ring 21 of static components 2 coordinate, on the outer ring surface front end of stationary seat 22, (front portion of the first stopping table 23) offers the second stopping table 26, on this second stopping table 26, is provided with snap ring 6, offers hook 61 on snap ring 6, on the exterior edge face of gland 1 center hole 11, offer spring seat concave station 12, the inner of spiral counterbalance spring 7 is placed on the spring seat concave station 12 of this gland 1 exterior edge face, on the end face of gland 1, communicate with center hole 11 to be uniformly distributed and have at least three grooves 14, hook 61 hooks of the snap ring 6 on the inner of spring carrier arm 8 and stationary seat 22 outer ring surface front ends, the outer end hook of the outer end of spring carrier arm 8 and spiral counterbalance spring 7, and counterbalance spring 7 is compressed, counterbalance spring 7 drives static components 2 to compensate by snap ring 6.For protection counterbalance spring 7 and spring carrier arm 8, on the exterior edge face of gland 1, be fixedly connected with and be provided with protecting jacket 9.
Claims (1)
1. shell fragment spacer spring external mechanical sealing device, includes gland (1), static components (2), moving ring assembly (3) and axle sleeve (4), it is characterized in that:
Static components (2) is encircled by way of compensation, coordinate vertical end face (A1) to locate to be provided with annular isolation shell fragment (5) with the seam of the pump housing (A) at gland (1), a side or the left and right sides at annular isolation shell fragment (5) are provided with sealing gasket, the outer portion of isolating shell fragment (5) is fixed by gland (1) and the pump housing (A) sealing, the vertical end face of the first stopping table (23) of offering on stationary seat (22) outer ring surface of the internal ring portion of annular isolation shell fragment (5) and static components (2) coordinates, on the axial plane of stationary seat (22) first stopping tables (23), being provided with nut briquetting (24) and sealing gasket (25) is sealedly and fixedly connected the internal ring portion of annular isolation shell fragment (5) and stationary seat (22), annular isolation shell fragment (5) cuts off chamber (B) between stationary seat (22) and the pump housing (A),
Moving ring assembly (3) is fixedly mounted on axle or axle sleeve (4) above coordinates with static components (2);
On the outer ring surface front end of stationary seat (22), offer the second stopping table (26), on this second stopping table (26), be provided with snap ring (6), on snap ring (6), offer hook (61);
On the exterior edge face center hole (11) of gland (1), offer spring seat concave station (12), the inner of spiral counterbalance spring (7) is placed on the spring seat concave station (12) of this gland (1) exterior edge face;
On the end face of gland (1), communicate with center hole (11) to be uniformly distributed and have at least three grooves (14), hook (61) hook of the snap ring (6) on the inner of spring carrier arm (8) and stationary seat (22) outer ring surface front end, the outer end hook of the outer end of spring carrier arm (8) and spiral counterbalance spring (7), and counterbalance spring (7) is compressed, counterbalance spring (7) drives static components (2) to compensate by snap ring (6);
For protection counterbalance spring (7) and spring carrier arm (8), on the exterior edge face of gland (1), be fixedly connected with and be provided with protecting jacket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410312474.XA CN104100718B (en) | 2014-07-03 | 2014-07-03 | Shell fragment spacer spring external mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410312474.XA CN104100718B (en) | 2014-07-03 | 2014-07-03 | Shell fragment spacer spring external mechanical sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104100718A true CN104100718A (en) | 2014-10-15 |
| CN104100718B CN104100718B (en) | 2016-05-04 |
Family
ID=51669125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410312474.XA Active CN104100718B (en) | 2014-07-03 | 2014-07-03 | Shell fragment spacer spring external mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104100718B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946827A (en) * | 2020-07-21 | 2020-11-17 | 丹东克隆集团有限责任公司 | Mechanical sealing device for sewage pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893564A (en) * | 1997-05-23 | 1999-04-13 | Meritor Heavy Vehicle Systems, Llc | Mechanical face seal assembly |
| JP2000161501A (en) * | 1998-11-25 | 2000-06-16 | Nikuni:Kk | Mechanical seal |
| CN2711469Y (en) * | 2004-06-11 | 2005-07-20 | 新疆乌苏市北方新科有限公司 | Mechanical seal device for light hydrocarbon pump |
| CN200958604Y (en) * | 2006-09-18 | 2007-10-10 | 丹东克隆集团有限责任公司 | Anti-block mechanical sealer |
| CN201794774U (en) * | 2010-08-03 | 2011-04-13 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for hot water pump |
| JP2011074966A (en) * | 2009-09-29 | 2011-04-14 | Aisin Seiki Co Ltd | Mechanical seal and liquid pump |
| CN204004405U (en) * | 2014-07-03 | 2014-12-10 | 丹东克隆集团有限责任公司 | Shell fragment spacer spring external mechanical sealing device |
-
2014
- 2014-07-03 CN CN201410312474.XA patent/CN104100718B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893564A (en) * | 1997-05-23 | 1999-04-13 | Meritor Heavy Vehicle Systems, Llc | Mechanical face seal assembly |
| JP2000161501A (en) * | 1998-11-25 | 2000-06-16 | Nikuni:Kk | Mechanical seal |
| CN2711469Y (en) * | 2004-06-11 | 2005-07-20 | 新疆乌苏市北方新科有限公司 | Mechanical seal device for light hydrocarbon pump |
| CN200958604Y (en) * | 2006-09-18 | 2007-10-10 | 丹东克隆集团有限责任公司 | Anti-block mechanical sealer |
| JP2011074966A (en) * | 2009-09-29 | 2011-04-14 | Aisin Seiki Co Ltd | Mechanical seal and liquid pump |
| CN201794774U (en) * | 2010-08-03 | 2011-04-13 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for hot water pump |
| CN204004405U (en) * | 2014-07-03 | 2014-12-10 | 丹东克隆集团有限责任公司 | Shell fragment spacer spring external mechanical sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946827A (en) * | 2020-07-21 | 2020-11-17 | 丹东克隆集团有限责任公司 | Mechanical sealing device for sewage pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100718B (en) | 2016-05-04 |
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Effective date of registration: 20170414 Address after: 118000 the Yellow Sea street, Liaoning, No. 18, No. Patentee after: DANDONG JINDA SEALING CO., LTD. Address before: 118000 the Yellow Sea street, Liaoning, No. 18, No. Patentee before: Dandong Kelong Group Co., Ltd. |