CN101493145A - High pressure resistant spring type mechanical sealing device - Google Patents
High pressure resistant spring type mechanical sealing device Download PDFInfo
- Publication number
- CN101493145A CN101493145A CNA200910010591XA CN200910010591A CN101493145A CN 101493145 A CN101493145 A CN 101493145A CN A200910010591X A CNA200910010591X A CN A200910010591XA CN 200910010591 A CN200910010591 A CN 200910010591A CN 101493145 A CN101493145 A CN 101493145A
- Authority
- CN
- China
- Prior art keywords
- friction ring
- groove
- ring
- open type
- gland
- 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.)
- Granted
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The invention relates to a high pressure resistant spring type mechanical sealing device which comprises a spring case (1), a spring (2), a thrust ring (3), a kinetic friction ring (4) and a static friction ring (5), wherein, the kinetic friction ring (4) is a compensation ring. The device is characterized in that a slip sealing ring (7) is formed by a tetrafluoroethylene sleeve with a U-shaped cross section and an O-shaped rubber ring embedded inside the tetrafluoroethylene sleeve; the end surface of the kinetic friction ring is distributed with two arch kinetic pressure groove groups that are an open type groove (A) and a closed type groove (B), the static friction ring (5) is installed in a way of being matched with the inner circle of a limiting slot platform on a gland bush (9) or a stationary seat (8), and an O-shaped auxiliary sealing ring is arranged on the vertical end surface of the limiting slot platform. The device has simple structure, simple and convenient processing, good stability and reliability of end surface sealing and auxiliary sealing, and high pressure resistance, can adapt to higher working pressure, works normally under the working condition of 18MP, and ensures leak tightness, little abrasion of the friction end surface and long service life.
Description
Technical field
What the present invention relates to is shaft sealer, i.e. mechanical seal device, particularly spring type mechanical sealing device.
Background technique
Spring type mechanical sealing device includes spring case, spring, throw-out collar, and kinetic friction ring, static friction ring, spring case and throw-out collar are established thrust spring promotion throw-out collar and done compensation by the pin sliding connection on pin, and kinetic friction ring or static friction ring are compensated loop; When the kinetic friction ring is compensated loop, spring case, throw-out collar are installed on rotatingshaft or the rotary axle box, the kinetic friction ring is installed in the throw-out collar, between kinetic friction ring and rotatingshaft or rotary axle box, be provided with O shape slippage seal ring, the static friction ring is installed on the gland, be provided with O shape auxiliary seal ring between the interior round fitting surface of static friction ring and gland, or the static friction ring is installed on the stationary seat, the fixed installation of stationary seat and gland also is provided with O shape auxiliary seal ring, and static friction ring and stationary seat interior justified and be provided with O shape auxiliary seal ring between cooperating.This spring type mechanical sealing device is fit to general occasion to be used, be that the lower rotatingshaft sealing of pressure is used, when pressure is higher, because axial pressure is bigger, frictional fit end surface shape that it is common and slippage seal ring, the setting of auxiliary seal coil structures are difficult to satisfy the high pressure usage requirement, be easy to generate wearing and tearing and unload leakage.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, process simple and conveniently, the end face seal reliability is good, high voltage bearing spring type mechanical sealing device.
The present invention includes spring case, spring, throw-out collar, the kinetic friction ring, the static friction ring, the kinetic friction ring is a compensated loop, spring case, throw-out collar is installed on rotatingshaft or the rotary axle box, spring case is fixedlyed connected with rotatingshaft or rotary axle box by fastening screw trip bolt, between spring case and throw-out collar, be provided with stop pin, spring case and throw-out collar are by the pin sliding connection of circle distribution, on pin, establish thrust spring promotion throw-out collar and do compensation, compensated loop is that the kinetic friction ring is installed in the throw-out collar, be provided with the slippage seal ring between kinetic friction ring and rotatingshaft or rotary axle box, the static friction ring cooperates with gland installs and is provided with auxiliary seal ring; Or the static friction ring is installed on the stationary seat, and stationary seat and gland fixed installation are provided with auxiliary seal ring between static friction ring and stationary seat and between stationary seat and gland, it is characterized in that;
The slippage seal ring that is provided with between kinetic friction ring and rotatingshaft or rotary axle box is to be that the tetrafluoroethylene cover and the setting-in O shape rubber ring within it of U-shaped constitutes by the cross section.
That the slippage seal ring plays is unsteady, buffering and seal action, O shape rubber ring is inlaid in the slippage seal ring that U-shaped tetrafluoroethylene cover is made, the elasticity of rubber material and the little characteristics of compression resistance yield deformation of tetrafluoroethylene have been utilized, its voltage endurance capability height, surface friction drag is little, working stability good airproof performance under elevated pressures.
On kinetic friction ring or static friction ring end face, along the circumferential direction evenly be distributed and be provided with dynamic pressure groove group, dynamic pressure groove group is by two kinds of open type groove A and blind groove B curve bath spaced apart composition, the inner arc circular diameter of open type groove A is Φ 2, the outside of open type groove A communicates with the end face external diameter, the wide H=of arc (0.3～0.6) π * Φ 4/2N of open type groove A, medium directly enters among the open type groove A by outside notch; Blind groove B is positioned at the end face middle part, the inner arc circular diameter Φ 2 of the inner arc circular diameter of blind groove B and open type groove A is equal to, Φ 2=(0.25～0.5) * (Φ 4-Φ 1)+Φ 1, outer arc circular diameter Φ 3=(1～4) * 2+ Φ 2 of blind groove B, the arc angle width Q＜360/2N of blind groove B on circumference, the groove depth of open type groove A and blind groove B is 0.1～0.4mm, and the both end sides of groove is the circular arc R transition.
Φ 1: the end face internal diameter;
Φ 2: the inner arc circular diameter of open type groove (A) and blind groove (B);
Φ 3: the outer arc circular diameter of blind groove (B);
Φ 4: the end face external diameter;
N: the groove number of open type groove (A) and blind groove (B);
H: the arc of open type groove (A) is wide;
Q: the arc angle width of blind groove (B) on circumference.
The dynamic pressure groove group processing that this kinetic friction ring or static friction ring end face are offered is simple and convenient, dynamic pressure effect and adverse current pumping effect are good, the end face seal reliability is good, can two-way rotation use, after the relative frictional rotation of two seal faces, medium enters seal face by open type groove A, expands rapidly because of being subjected to frictional heat, simultaneously because the existence of blind groove B is arranged, delay end face liquid film speed of expansion, thereby make end face thinning of liquid film and even, make seal face that fabulous lubricated and sealing, end face seal working stability be arranged, and can bear higher pressure, proper functioning under the 18MP operating mode by experiment, the end-face friction temperature is low, and consumed power is little.
The static friction ring cooperates installation with the interior circle of the stopping table on the gland, erects on the end face at the stopping table of gland and is provided with O shape auxiliary seal ring;
Or circle cooperates installations in the stopping table on static friction ring and the stationary seat, and stationary seat and gland fixedly mount, and is provided with O shape auxiliary seal ring on the stopping table setting end face of stationary seat, is provided with auxiliary seal ring on stationary seat and upright end that gland cooperates.
Axial pressure is vertically born in being provided with of the auxiliary seal ring of static friction ring, the anti-pressure ability height, and sealing reliability is good.
The present invention is simple in structure, processes simple and conveniently, and end face seal and auxiliary seal reliability are good, high pressure resistant, can adapt to higher working pressure, and proper functioning under the 18MP operating mode guarantees that the wearing and tearing of sealing and abrasive end face are little, long service life.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation.
Fig. 2 is another embodiment of the present invention structural representation
Fig. 3 is Fig. 1 kinetic friction ring or static friction ring end face dynamic pressure groove structure shape figure.
Embodiment
The present invention includes spring case 1, spring 2, throw-out collar 3, kinetic friction ring 4, static friction ring 5, kinetic friction ring 4 is a compensated loop, spring case 1, throw-out collar 3 is installed on rotatingshaft 6 or the rotary axle box, spring case 1 is fixedlyed connected with rotatingshaft 6 or rotary axle box by fastening screw trip bolt 11, be provided with stop pin 12 at spring case 1 and 3 of throw-out collars, spring case 1 and pin 13 sliding connections of throw-out collar 3 by circle distribution, on pin 13, establish thrust spring 2 promotion throw-out collars 3 and do compensation, compensated loop is that kinetic friction ring 4 is installed in the throw-out collar 3, between kinetic friction ring 4 and rotatingshaft 6 or rotary axle box, be provided with the slippage seal ring, static friction ring 5 cooperates with gland 9 installs and is provided with auxiliary seal ring, or static friction ring 5 is installed on the stationary seat 8, stationary seat 8 and gland 9 fixed installations, be provided with auxiliary seal ring at static friction ring 5 and 8 of stationary seats and stationary seat 8 and 9 on gland, it is characterized in that;
The slippage seal ring 7 that is provided with between kinetic friction ring 4 and rotatingshaft 6 or rotary axle box is to be that the tetrafluoroethylene cover and the setting-in O shape rubber ring within it of U-shaped constitutes by the cross section;
Shown in accompanying drawing 3, on kinetic friction ring or static friction ring end face, along the circumferential direction evenly be distributed and be provided with dynamic pressure groove group, dynamic pressure groove group is by two kinds of open type groove A and blind groove B curve bath spaced apart composition, the inner arc circular diameter of open type groove A is Φ 2, the outside of open type groove A communicates with the end face external diameter, the wide H=of arc (0.3～0.6) π * Φ 4/2N of open type groove A; Blind groove B is positioned at the end face middle part, the inner arc circular diameter Φ 2 of the inner arc circular diameter of blind groove B and open type groove A is equal to, Φ 2=(0.25～0.5) * (Φ 4-Φ 1)+Φ 1, outer arc circular diameter Φ 3=(1～4) * 2+ Φ 2 of blind groove B, the arc angle width Q＜360/2N of blind groove B on circumference, the groove depth of open type groove A and blind groove B is 0.1～0.4mm, and the both end sides of groove is the circular arc R transition;
Shown in accompanying drawing 1, circle cooperates installations in the stopping table 91 on static friction ring 5 and the gland 9, is provided with O shape auxiliary seal ring 82 on the stopping table setting end face of gland 9, is provided with stop pin 95 and anticreep gland 96 at gland 9 and 5 on static friction ring.
Shown in accompanying drawing 2, circle cooperates installations in the stopping table 81 on static friction ring 5 and the stationary seat 8, stationary seat 8 and gland 9 fixed installations, on the stopping table setting end face of stationary seat 8, be provided with O shape auxiliary seal ring 82, on stationary seat 8 and upright end that gland 9 cooperates, be provided with auxiliary seal ring 92, be provided with stop pin 95 at stationary seat 8 and 5 on static friction ring.
Claims (1)
1, high pressure resistant spring type mechanical sealing device, include spring case (1), spring (2), throw-out collar (3), kinetic friction ring (4), static friction ring (5), kinetic friction ring (4) is a compensated loop, spring case (1), throw-out collar (3) is installed on rotatingshaft (6) or the rotary axle box, spring case (1) is fixedlyed connected with rotatingshaft (6) or rotary axle box by fastening screw trip bolt (11), between spring case (1) and throw-out collar (3), be provided with stop pin (12), spring case (1) and pin (13) sliding connection of throw-out collar (3) by circle distribution, on pin (13), establish thrust spring (2) promotion throw-out collar (3) and do compensation, compensated loop is that kinetic friction ring (4) is installed in the throw-out collar (3), between kinetic friction ring (4) and rotatingshaft (6) or rotary axle box, be provided with the slippage seal ring, static friction ring (5) cooperates with gland (9) installs and is provided with auxiliary seal ring, or static friction ring (5) is installed on the stationary seat (8), stationary seat (8) and gland (9) fixed installation, being provided with auxiliary seal ring between static friction ring (5) and stationary seat (8) and between stationary seat (8) and gland (9), it is characterized in that;
The slippage seal ring (7) that is provided with between a, kinetic friction ring (4) and rotatingshaft (6) or rotary axle box is to be that the tetrafluoroethylene cover and the setting-in O shape rubber ring within it of U-shaped constitutes by the cross section;
B, on kinetic friction ring or static friction ring end face, along the circumferential direction evenly be distributed and be provided with dynamic pressure groove group, dynamic pressure groove group is by two kinds of open type groove (A) and blind groove (B) curve bath spaced apart composition, the inner arc circular diameter of open type groove (A) is Ф 2, the outside of open type groove (A) communicates with the end face external diameter, the wide H=of arc (0.3～0.6) π * Ф 4/2N of open type groove (A); Blind groove (B) is positioned at the end face middle part, the inner arc circular diameter Ф 2 of the inner arc circular diameter of blind groove (B) and open type groove (A) is equal to, Ф 2=(0.25～0.5) * (Ф 4-Ф 1)+Ф 1, outer arc circular diameter Ф 3=(1～the 4) * 2+ Ф 2 of blind groove (B), the arc angle width Q＜360/2N of blind groove (B) on circumference, the groove depth of open type groove (A) and blind groove (B) is 0.1～0.4mm, and the both end sides of groove is circular arc (R) transition;
Ф 1: the end face internal diameter;
Ф 2: the inner arc circular diameter of open type groove (A) and blind groove (B);
Ф 3: the outer arc circular diameter of blind groove (B);
Ф 4: the end face external diameter;
N: the groove number of open type groove (A) and blind groove (B);
H: the arc of open type groove (A) is wide;
Q: the arc angle width of blind groove (B) on circumference;
C, static friction ring (5) cooperate installation with the interior circle of the stopping table (91) on the gland (9), erect on the end face at the stopping table of gland (9) and are provided with O shape auxiliary seal ring (82);
Or static friction ring (5) cooperates installation with the interior circle of the stopping table (81) on the stationary seat (8), stationary seat (8) and gland (9) fixed installation, erect on the end face at the stopping table of stationary seat (8) and to be provided with O shape auxiliary seal ring (82), on stationary seat (8) and upright end that gland (9) cooperates, be provided with auxiliary seal ring (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910010591XA CN101493145B (en) | 2009-03-03 | 2009-03-03 | High pressure resistant spring type mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910010591XA CN101493145B (en) | 2009-03-03 | 2009-03-03 | High pressure resistant spring type mechanical sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101493145A true CN101493145A (en) | 2009-07-29 |
| CN101493145B CN101493145B (en) | 2010-12-01 |
Family
ID=40923879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910010591XA Active CN101493145B (en) | 2009-03-03 | 2009-03-03 | High pressure resistant spring type mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101493145B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537365A (en) * | 2012-03-08 | 2012-07-04 | 大连华阳光大密封有限公司 | Non-contact type mechanical sealing device |
| CN102619984A (en) * | 2012-03-29 | 2012-08-01 | 大连华阳光大密封有限公司 | Mechanical sealing device for high pressure working condition |
| CN103234045A (en) * | 2013-04-13 | 2013-08-07 | 丹东克隆集团有限责任公司 | Balance type spring mechanical seal device for pump |
| CN103234047A (en) * | 2013-04-13 | 2013-08-07 | 丹东克隆集团有限责任公司 | End face high-pressure-resistant dynamic-pressure groove structure of mechanical seal static ring for pump |
| CN106323074A (en) * | 2015-06-18 | 2017-01-11 | 中石化洛阳工程有限公司 | Device used for adjusting heat expansion difference of inner sleeve heat exchanger |
| CN110005819A (en) * | 2019-04-30 | 2019-07-12 | 西安永华集团有限公司 | A kind of superhigh pressure sealing modular construction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201363423Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | High-pressure resistance spring type mechanical sealing device |
-
2009
- 2009-03-03 CN CN200910010591XA patent/CN101493145B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537365A (en) * | 2012-03-08 | 2012-07-04 | 大连华阳光大密封有限公司 | Non-contact type mechanical sealing device |
| CN102619984A (en) * | 2012-03-29 | 2012-08-01 | 大连华阳光大密封有限公司 | Mechanical sealing device for high pressure working condition |
| CN103234045A (en) * | 2013-04-13 | 2013-08-07 | 丹东克隆集团有限责任公司 | Balance type spring mechanical seal device for pump |
| CN103234047A (en) * | 2013-04-13 | 2013-08-07 | 丹东克隆集团有限责任公司 | End face high-pressure-resistant dynamic-pressure groove structure of mechanical seal static ring for pump |
| CN103234047B (en) * | 2013-04-13 | 2015-12-30 | 丹东克隆集团有限责任公司 | The high pressure resistant dynamic pressure groove structure of mechanical seal for pump stationary ring end face |
| CN106323074A (en) * | 2015-06-18 | 2017-01-11 | 中石化洛阳工程有限公司 | Device used for adjusting heat expansion difference of inner sleeve heat exchanger |
| CN110005819A (en) * | 2019-04-30 | 2019-07-12 | 西安永华集团有限公司 | A kind of superhigh pressure sealing modular construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101493145B (en) | 2010-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101493145B (en) | High pressure resistant spring type mechanical sealing device | |
| JPWO2018105505A1 (en) | Sliding parts | |
| JP2006052736A (en) | Wet rotor circulator | |
| WO2014030742A1 (en) | Sealing device | |
| CN104358705A (en) | Cartridge mechanical sealing device for abrasion-resistant pump | |
| US8931783B2 (en) | Seal assemblies | |
| CN201363423Y (en) | High-pressure resistance spring type mechanical sealing device | |
| KR101370773B1 (en) | The mechanical seal | |
| CN202251062U (en) | Mechanical rotary sealing device of horizontal centrifugal pump | |
| CN203702642U (en) | Low-temperature large-shaft-diameter dry gas sealing device for centrifugal compressor | |
| KR100994067B1 (en) | Mechanical seal for high pressure and high speed | |
| CN104989825B (en) | A kind of gland seal device | |
| US20210040952A1 (en) | Independent oil cavity sealing structure for a submersible electric pump | |
| CN105715800A (en) | Sealing Element for Sealing a Rotating Shaft | |
| CN104132143A (en) | Silicon carbide mechanical seal device | |
| CN210178930U (en) | Gas spring mechanical seal | |
| CN205689758U (en) | A kind of boiler feed pump single-end face integrated mechanically-sealing apparatus | |
| CN204153147U (en) | Pumping anti-leak mechanical seal device | |
| CN207879607U (en) | Water-ring vacuum pump | |
| CN103321946B (en) | It is automatically adjusted no-water sealing device | |
| JP2014524539A (en) | Pump shaft seals that use seal rings and bellows to retain bearing lubricant | |
| CN202612072U (en) | Mechanical sealing member for pump | |
| CN201396536Y (en) | Rotary sealing connector | |
| CN102200138B (en) | Seal special for thick oil pump | |
| CN201982355U (en) | No-water sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |