CN101603597B - Friction ring of mechanical sealing device - Google Patents
Friction ring of mechanical sealing device Download PDFInfo
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- CN101603597B CN101603597B CN 200910032508 CN200910032508A CN101603597B CN 101603597 B CN101603597 B CN 101603597B CN 200910032508 CN200910032508 CN 200910032508 CN 200910032508 A CN200910032508 A CN 200910032508A CN 101603597 B CN101603597 B CN 101603597B
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- ring
- groove
- anchor ring
- major trough
- ring body
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Abstract
The invention discloses a friction ring of a mechanical sealing device, comprising a ring body; a plurality of main grooves, which are uniformly distributed, are arranged on a ring body end surface corresponding to the other ring body end surface, and the inner edges and the outer edges of the main grooves and the ring body end surfaces are respectively separated by distances, diversion trenches are respectively arranged between two adjacent main grooves, the diversion trenches are respectively communicated with ring edges at the same side of the ring body end surfaces, the main grooves and the diversion trenches are symmetrically and uniformly arranged according to the circle centers of the ring bodies, the bottom parts of the main grooves are circular arc shapes, the bottom parts of the main grooves are close to the inner edges of the ring bodies, and side grooves are respectively arranged at two ends of the main grooves, close to one side of the inner edges of the ring bodies; the friction ring has the advantages that: the washed-away fluid can be pumped secondarily, the leakage amount can be effectively controlled, the opening force of a sealing end surface can be effectively improved, the operating stability of the equipment is enhanced and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of mechanical seal device for hydrodynamic and hydrostatic seal, relate in particular to the friction ring anchor ring structure between the mechanical sealing surface that is consisted of by rotating ring and stationary ring in a kind of mechanical seal device.
Background technique
Mechanical seal device is mainly used in the shaft end seal of turning round equipment, common mechanical seal device generally adopts liquid lock liquid or liquid lock gas, dry gas seals and upstream pumping mechanical seal are then adopted in more advanced mechanical seal, and dry gas seals must adopt the gas source control system of a cover more complicated, and the impurity in pressure, flow and the fluid of source of the gas all there is very strict requirement, therefore, the sealing apparatus structure is complicated, manufacturing is higher with user cost, thereby promotes the use of comparatively trouble.
And traditional mechanical seal device with pumping function is because its special friction ring structural design has preferably mechanical sealing performance and unlatching performance in use mostly.The friction ring of this mechanical seal device comprises rotating ring and stationary ring, in the mechanical sealing surface that is consisted of by the rotating ring end face corresponding with stationary ring, wherein the end face of a friction ring is smooth plane structure, then offer some major troughs that are evenly distributed on the toroidal surface on another friction ring end face corresponding with it, the quantity of this major trough can be 3 to 50, more rational major trough quantity is generally 3 to 24, the inner edge of major trough and ring body end face, one spacing is arranged respectively between the outer rim, the size of this spacing is corresponding zooming in or out according to the size of ring body structurc, between adjacent two major troughs guiding gutter is set respectively, guiding gutter communicates with the ring limit of ring body end face the same side respectively, major trough and guiding gutter are arranged symmetrically and evenly according to the center of circle of ring body respectively, when the mechanical seal device of this structure uses, when mechanical parking, owing to can fit tightly between rotating ring and stationary ring two friction rings, have fluid to enter in the guiding gutter this moment, can will slightly back down between the sealing surface, be convenient to the startup of machinery, thereby improve its openability; In mechanical rotation constantly, the fluid that enters guiding gutter can enter rapidly between the sealing surface that is made of two friction rings, play lubrication, simultaneously, this part fluid can enter into along the circumferential surface of friction ring in the major trough, major trough plays certain pumping effect to this part fluid, and fluid is pumped outside ring, plays the effect that stops fluid leakage.But this structure still can not be stopped a leak better, and the face opening effect during simultaneously for static pressure also is not very good, thereby affects the normal use of this mechanical seal device.
Summary of the invention
The object of the present invention is to provide a kind of more effectively Leakage prevention, improve the friction ring of its operational safety mechanical seal device.
Further purpose of the present invention is to provide a kind of friction ring that can improve better the mechanical seal device of end face seal openability between the friction ring.
For realizing purpose of the present invention, the friction ring of mechanical seal device, comprise the ring body in the friction pair, be provided with some major troughs that are evenly distributed on the toroidal surface on the ring body end face corresponding with another ring body end face, one spacing is arranged respectively between the inner edge of major trough and ring body end face and the outer rim, between adjacent two major troughs guiding gutter is set respectively, guiding gutter communicates with the ring limit of ring body end face the same side respectively, major trough and guiding gutter are arranged symmetrically and evenly according to the center of circle of ring body respectively, described each major trough bottom all is circular arc, keep to the side mutually with the inner edge of ring body in the bottom of major trough, each major trough two ends is respectively arranged with secondary groove by ring body inner edge one side.
For realizing further purpose of the present invention, a kind of friction ring of mechanical seal device, also comprise: described guiding gutter communicates with the anchor ring outer rim, guiding gutter is progressively deepened by the inboard groove depth to the anchor ring outside of anchor ring, major trough is stepped slot, the quantity of step has between 2 to 50, and the groove depth of stepped slot progressively deepens along side direction anchor ring lateral direction in the anchor ring, and the radial width of step is progressively widened to the inboard of anchor ring along the outside of anchor ring.
Described guiding gutter communicates with the anchor ring inner edge, guiding gutter is progressively deepened to the groove depth of anchor ring inboard by the anchor ring outside, major trough is stepped slot, the quantity of step has between 2 to 50, the groove depth of stepped slot progressively deepens along side direction anchor ring lateral direction in the anchor ring, and the radial width of step is progressively widened to the outside of anchor ring along the inboard of anchor ring;
Described major trough is respectively to enclose an arc arch groove by a circular arc line and a straight line;
The curved groove that described major trough encloses an arc jointly by two corresponding circular arc lines and two short-terms respectively;
Described secondary groove shape can be a kind of in straight-line groove, arc groove, spiral chute, U-groove bevel, V-shaped groove or the Y shape groove.
The invention has the beneficial effects as follows: owing to being provided with respectively secondary groove at the two ends of major trough, the fluid that runs off in the time of can be to the major trough pumping carries out the secondary pumping, and the control leakage rate has been played key effect; Because major trough and guiding gutter are stepped slot, the unlatching that can be seal face provides good opening force, and can strengthen stable equipment operation, thereby effectively prolongs the working life of seal arrangement.
Description of drawings
Fig. 1 is the structural representation of the friction ring of a kind of mechanical seal device of invention;
Fig. 2 is the partial enlarged drawing of the friction ring major trough of mechanical seal device among Fig. 1;
Fig. 3 is the structural representation of the friction ring of the another kind of mechanical seal device of invention;
Fig. 4 is the partial enlarged drawing of the friction ring major trough of mechanical seal device among Fig. 3;
Fig. 5 is the structural representation of the friction ring of the third mechanical seal device of the present invention.
Among the figure: 1, ring body, 2, major trough, 3, guiding gutter, 4, secondary groove, 5, step.
Embodiment
Below in conjunction with accompanying drawing, friction ring structure and the working principle of mechanical seal device of the present invention is described in further detail.
Such as Fig. 1,2,3, shown in 4 and 5, a kind of friction ring of mechanical seal device, comprise the ring body 1 in the friction pair, be provided with some major troughs 2 that are evenly distributed on the toroidal surface on ring body 1 end face corresponding with another ring body end face, between the inner edge of major trough 2 and ring body 1 end face and the outer rim spacing is arranged respectively, between adjacent two major troughs 2 guiding gutter 3 is set respectively, guiding gutter 3 communicates with the ring limit of ring body 1 end face the same side respectively, major trough 2 is arranged according to the center of circle of ring body 1 respectively symmetrically and evenly with guiding gutter 3, each major trough 2 bottom all is circular arc, the inner edge of the bottom of major trough 2 and ring body 1 keeps to the side mutually, and each major trough 2 two ends is respectively arranged with secondary groove 4 by ring body 1 inner edge one side.
As shown in Figure 1, 2, described guiding gutter 3 communicates with the anchor ring outer rim, guiding gutter 3 is progressively deepened by the inboard groove depth to the anchor ring outside of anchor ring, major trough is stepped slot, the quantity of step 5 has between 2 to 50, the groove depth of step 5 progressively deepens along side direction anchor ring lateral direction in the anchor ring, and the radial width of step 5 is progressively widened to the inboard of anchor ring along the outside of anchor ring.
Shown in Fig. 3,4, described guiding gutter 3 communicates with the anchor ring inner edge, guiding gutter 3 is progressively deepened to the groove depth of anchor ring inboard by the anchor ring outside, major trough 2 is stepped slot, the quantity of step has between 2 to 50, the groove depth of step 5 progressively deepens along side direction anchor ring lateral direction in the anchor ring, and the radial width of step 5 is progressively widened to the outside of anchor ring along the inboard of anchor ring.
The shape of above-mentioned guiding gutter 3 can be rectangle groove, also can be the groove of the various shapes such as dovetail groove, vee gutter.The variation of groove depth also is conducive to the unlatching of end face seal among above-mentioned two embodiments, improves the startability of machinery, is conducive to increase the service life.
As shown in figs. 1 and 3, the curved groove that described major trough 2 encloses an arc jointly by two corresponding circular arc lines and two short-terms respectively, major trough 2 is stepped slot, step 5 is generally 2 to 18, larger numbers of steps also can be 2 to 50, the groove depth of step 5 progressively shoals along side direction in the anchor ring of anchor ring lateral, and the radial width of step 5 is progressively widened to the inboard of anchor ring along the outside of anchor ring.
In the present invention, described secondary groove 4 shapes are generally arc groove, also can adopt the various shapes such as straight-line groove, spiral chute, U-groove bevel, V-shaped groove or Y shape groove, and its effect all is in order to improve secondary pumping effect.
Claims (6)
1. the friction ring of mechanical seal device, comprise the ring body in the friction pair, be provided with some major troughs that are evenly distributed on the toroidal surface on the ring body end face corresponding with another ring body end face, one spacing is arranged respectively between the inner edge of major trough and ring body end face and the outer rim, between adjacent two major troughs guiding gutter is set respectively, guiding gutter communicates with the ring limit of ring body end face the same side respectively, when guiding gutter and ring body end face one side are logical and opposite side just obstructed, major trough and guiding gutter are arranged symmetrically and evenly according to the center of circle of ring body respectively, it is characterized in that: described each major trough bottom all is circular arc, the bottom of major trough is mutually close with the inner edge of ring body, and each major trough two ends is respectively arranged with secondary groove by ring body inner edge one side.
2. the friction ring of a kind of mechanical seal device according to claim 1, it is characterized in that: described guiding gutter communicates with the anchor ring outer rim, guiding gutter is progressively deepened by the inboard groove depth to the anchor ring outside of anchor ring, major trough is stepped slot, the quantity of step has between 2 to 50, the groove depth of stepped slot progressively deepens along side direction anchor ring lateral direction in the anchor ring, and the radial width of step is progressively widened to the inboard of anchor ring along the outside of anchor ring.
3. the friction ring of a kind of mechanical seal device according to claim 1, it is characterized in that: described guiding gutter communicates with the anchor ring inner edge, guiding gutter is progressively deepened to the groove depth of anchor ring inboard by the anchor ring outside, major trough is stepped slot, the quantity of step has between 2 to 50, the groove depth of stepped slot progressively deepens along side direction anchor ring lateral direction in the anchor ring, and the radial width of step is progressively widened to the outside of anchor ring along the inboard of anchor ring.
4. according to claim 1, the friction ring of 2 or 3 described a kind of mechanical seal device, it is characterized in that: described major trough is respectively to enclose an arc arch groove by a circular arc line and a straight line.
5. according to claim 1, the friction ring of 2 or 3 described a kind of mechanical seal device, it is characterized in that: the curved groove that described major trough encloses an arc jointly by two corresponding circular arc lines and two short-terms respectively.
6. according to claim 1, the friction ring of 2 or 3 described a kind of mechanical seal device, it is characterized in that: described secondary groove shape can be a kind of in straight-line groove, arc groove, spiral chute, U-groove bevel, V-shaped groove or the Y shape groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910032508 CN101603597B (en) | 2009-06-30 | 2009-06-30 | Friction ring of mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910032508 CN101603597B (en) | 2009-06-30 | 2009-06-30 | Friction ring of mechanical sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603597A CN101603597A (en) | 2009-12-16 |
| CN101603597B true CN101603597B (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910032508 Expired - Fee Related CN101603597B (en) | 2009-06-30 | 2009-06-30 | Friction ring of mechanical sealing device |
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| Country | Link |
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| CN (1) | CN101603597B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439023A (en) * | 2016-07-28 | 2017-02-22 | 浙江工业大学 | Cosine curve mechanical seal end surface structure |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799074A (en) * | 2010-04-13 | 2010-08-11 | 昆明理工大学 | Pi-shaped groove sealing ring |
| CN102062213A (en) * | 2011-01-19 | 2011-05-18 | 昆明理工大学 | Mechanical sealing ring of biomimetic fish scale groove |
| US9353865B2 (en) | 2014-06-03 | 2016-05-31 | Thermo King Corporation | Mechanical face seal |
| CN107314112B (en) * | 2017-07-24 | 2023-07-21 | 浙江工业大学 | Mechanical seal end face structure imitating grinding disc textures |
| CN107401614A (en) * | 2017-07-28 | 2017-11-28 | 丹东克隆集团有限责任公司 | Nuclear power safety injection pump mechanical seal end surface |
| CN107676294A (en) * | 2017-09-28 | 2018-02-09 | 江苏大学 | A kind of shaft sealer suitable for HTHP multistage pump |
| CN112682513B (en) * | 2020-12-18 | 2023-01-20 | 武汉宇格电力设备有限公司 | Self-lubricating mechanical seal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206801A (en) * | 1998-08-13 | 1999-02-03 | 王玉明 | Bidirectional rotation double-row double-blade spiral groove face sealing |
| KR20060019258A (en) * | 2004-08-27 | 2006-03-03 | 한국씰마스타주식회사 | Groove pattern of mechanical face seal |
| CN201448439U (en) * | 2009-06-30 | 2010-05-05 | 张家港市金鹰密封件厂 | Friction ring for mechanical sealing arrangement |
-
2009
- 2009-06-30 CN CN 200910032508 patent/CN101603597B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206801A (en) * | 1998-08-13 | 1999-02-03 | 王玉明 | Bidirectional rotation double-row double-blade spiral groove face sealing |
| KR20060019258A (en) * | 2004-08-27 | 2006-03-03 | 한국씰마스타주식회사 | Groove pattern of mechanical face seal |
| CN201448439U (en) * | 2009-06-30 | 2010-05-05 | 张家港市金鹰密封件厂 | Friction ring for mechanical sealing arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439023A (en) * | 2016-07-28 | 2017-02-22 | 浙江工业大学 | Cosine curve mechanical seal end surface structure |
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| CN101603597A (en) | 2009-12-16 |
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Owner name: JIANGSU GOLD EAGLE SEAL MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHANGJIAGANG GOLD-EAGLE SEAL FACTORY Effective date: 20130912 |
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Free format text: CORRECT: ADDRESS; FROM: 215633 SUZHOU, JIANGSU PROVINCE TO: 215636 SUZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130912 Address after: 215636, Suzhou City, Jiangsu province Zhangjiagang Daxin Town on the west side of the city road Patentee after: Jiangsu Golden Eagle Fluid Machinery Co.,Ltd. Address before: 215633 No. 379 Changjiang Road, Jin Gang Town, Jiangsu, Zhangjiagang Patentee before: Zhangjiagang Gold-Eagle Seal Factory |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20170630 |