CN104329466B - Refractory machinery seals device - Google Patents
Refractory machinery seals device Download PDFInfo
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- CN104329466B CN104329466B CN201410445010.6A CN201410445010A CN104329466B CN 104329466 B CN104329466 B CN 104329466B CN 201410445010 A CN201410445010 A CN 201410445010A CN 104329466 B CN104329466 B CN 104329466B
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- ring
- axle sleeve
- flow guide
- vacuum
- outer flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention relates to fluid medium delivery pipe seal arrangement field, be specially a kind of refractory machinery seals device.A kind of refractory machinery seals device, comprise rotating ring (4), stationary ring (5) and rotating shaft (20), it is characterized in that: also comprise vacuum axle sleeve (11) and O type circle (13), the inner chamber of vacuum axle sleeve (11) is high vacuum state; Vacuum axle sleeve (11) overlaps and is fixed in rotating shaft (20), rotating ring (4) overlaps and is fixed on vacuum axle sleeve (11), stationary ring (5) is enclosed within vacuum axle sleeve (11) rotationally, fits mutually and relatively rotate between stationary ring (5) and rotating ring (4); O type circle (13) is lined with between vacuum axle sleeve (11) and rotating shaft (20).Good seal performance of the present invention, dielectric leakage is few, long operational time, long service life.
Description
Technical field
The present invention relates to fluid medium delivery pipe seal arrangement field, be specially a kind of refractory machinery seals device.
Background technique
At present, for mechanical seal of a great variety of rotating shaft, model is different, but general structure is all made up of static components and moving ring assembly usually, current mechanical seal device has following defect: 1. conventional products is under Seal cage superheat state, the distortion of easy generation axle sleeve, thus cause the friction occlusion of the smaller relative movement inter-module in gap comprising guiding subassembly, labyrinth seal, the life-span of serious harm mechanical seal and the safety of equipment.The thermal expansion of mechanical seal sleeve easily causes the auxiliary seal of axle sleeve inside to lose efficacy; 2. the restrictor ring of routine and labyrinth seal are because seal clearance is large, and during operation, effectiveness comparison is limited; 3. the sparge water of conventional mechanical sealing directly enters sealing by cavity side, and should be sparge water pressure and concentrate flush points more single again, therefore developing result is undesirable, even because the inequality of being heated of seal ring has an impact to sealability.
Summary of the invention
In order to overcome the defect of prior art, providing that a kind of good seal performance, dielectric leakage are few, the shaft sealing device of long operational time, long service life, the invention discloses a kind of refractory machinery seals device.
The present invention reaches goal of the invention by following technical solution:
A kind of refractory machinery seals device, comprises rotating ring, stationary ring and rotating shaft, it is characterized in that: also comprise vacuum axle sleeve and O type circle,
Vacuum axle sleeve is hollow structure, and the inner chamber of vacuum axle sleeve is high vacuum state;
Vacuum axle sleeve overlaps and is fixed in rotating shaft, and moving ring sleeve is also fixed on vacuum shaft and puts, and stationary ring is enclosed within vacuum shaft rotationally and puts, laminating and relatively rotating mutually between stationary ring and rotating ring;
O type circle is lined with between vacuum axle sleeve and rotating shaft.
Described refractory machinery seals device, is characterized in that: also comprise self contering restrictor ring, pressing plate, snap ring, stationary seat, straight pin, gland, Compress Spring, outer flow guide sleeve and Inner guide cover,
The outer side surface of vacuum axle sleeve is provided with ring shaped step;
Inner guide cover is for closing the cartridge type of one end open in bottom surface, Inner guide cover is enclosed within vacuum shaft by the through hole that bottom surface is offered and puts, side or the bottom surface of Inner guide cover are screwed on the ring shaped step of vacuum axle sleeve, between the inner side surface that moving ring sleeve overlaps at Inner guide and the outer side surface of vacuum axle sleeve, on the ring shaped step that rotating ring is removably fixed on vacuum axle sleeve thus and vacuum axle sleeve synchronous axial system;
Outer flow guide sleeve is the cartridge type that one end open is closed in bottom surface, outer flow guide sleeve is enclosed within vacuum shaft rotationally by the through hole that bottom surface is offered and puts and be located at outside Inner guide cover, the opening direction of outer flow guide sleeve is consistent with the opening direction that Inner guide overlaps, Spielpassung is formed between the outer side wall of the madial wall of outer flow guide sleeve and Inner guide cover, gland is Flange-shaped Parts, the neck flange of gland is enclosed within vacuum shaft rotationally and puts, and the opening end of outer flow guide sleeve and the neck flange of gland are fixed;
Self contering restrictor ring, pressing plate and snap ring are enclosed within vacuum shaft successively rotationally and put and all serve as a contrast between the outside of the inner side of flow guide sleeve bottom surface outside and the bottom surface of Inner guide cover, self contering restrictor ring is fixed on the inner chamber of outer flow guide sleeve by pressing plate and snap ring, cylindrical pin to the inner side connecting self contering restrictor ring and outer flow guide sleeve bottom surface with prevent self contering restrictor ring mutually externally flow guide sleeve rotate, be lined with O type circle between self contering restrictor ring and the end face of pressing plate;
The static components that stationary ring and stationary seat are combined into one, described static components is enclosed within vacuum shaft rotationally and puts, cylindrical pin rotates relative to gland to prevent stationary seat to the outer end connecting stationary seat with gland, being lined with between the exterior edge face of stationary seat and gland can the Compress Spring of axial stretching, the exterior edge face of stationary ring props up rotating ring, fits mutually and relatively rotate between stationary ring and rotating ring;
Outer flow guide sleeve has sparge water inlet distribution channel and sparge water outlet manifold passage, sparge water inlet distribution channel and sparge water outlet manifold passage respectively have one group, the outer side wall of sparge water inlet distribution channel and all through outer flow guide sleeve of sparge water outlet manifold passage and endoporus sidewall, sparge water inlet distribution channel is just to the opposing side of rotating ring and stationary ring, and sparge water outlet manifold passage is just to the interval between pressing plate and Inner guide cover.
Described refractory machinery seals device, is characterized in that: also comprise positioning block, and one end of positioning block is enclosed within the locating slot on vacuum axle sleeve outer side wall, and the interior edge face of positioning block is removably fixed with the flange chassis of gland.
Described refractory machinery seals device, is characterized in that: rotating ring is provided with at least three grooves; Groove is less than rotating ring thickness by cutting a degree of depth on rotating ring, is highly less than the arc rear of the difference of outer radius in rotating ring annular and is formed, and formed by groove and rotating ring cross section, angle is 0.2 ° ~ 45 °; Groove is evenly distributed around the central axis of rotating ring, and namely the line of groove central point forms regular polygon;
Outer flow guide sleeve has at least six flushing holes, the outer side wall of the through outer flow guide sleeve of flushing hole difference and endoporus sidewall, the central axis of flushing hole all becomes the angle of cut of one 20 ° ~ 45 ° with the tangent line of outer flow guide sleeve cross section excircle place intersection point with central axis, flushing hole is evenly distributed around the central axis of outer flow guide sleeve, and namely the line of flushing hole central point forms regular polygon.
When the present invention uses, gland is fixed in frame, vacuum axle sleeve, Inner guide cover and rotating ring synchronous axial system is driven during axis of rotation, and self contering restrictor ring, pressing plate, snap ring, stationary ring, stationary seat, gland and outer flow guide sleeve all keep static with frame, fit mutually between stationary ring and rotating ring thus there is sliding friction, when stationary ring and rotating ring are because of friction after loss, the axial elastic force that Compress Spring produces makes stationary ring and rotating ring remain to fit tightly; Vacuum axle sleeve plays heat-blocking action by the inner chamber of high vacuum; Sparge water flows out from sparge water outlet manifold passage after sparge water inlet distribution channel injects again, and plays effect that is clean and cooling.
Structural feature of the present invention is:
1. mechanical seal sleeve is vacuum, axle sleeve inside is emptied and is made vacuum state, by deep hole trepan pre-processed deep trouth on axle sleeve of special facture, then axle sleeve being placed at degree of vacuum is closed by vacuum fusion welding technique under 0.01KPa state, ensures axle sleeve inner vacuum state;
2. in mechanical seal, main frame cavity side is provided with self contering restrictor ring, self contering restrictor ring is wear-resisting by graphite etc., the material that self-lubricating property is good is made, be positioned on static outer flow guide sleeve by compression auxiliary seal back pressing plate and snap ring, pressing plate is provided with pressure compensation opening, when mechanical seal runs, the hot water that self contering restrictor ring is effectively intercepted in pump cavity by minimum gap enters Seal cage, medium simultaneously in Seal cage flows to the opposite side of guiding subassembly from end face side by the pump action of the guiding subassembly be made up of outer flow guide sleeve and Inner guide cover etc., take away the heat that seal face produces, and flow out mechanical seal chamber by the hole on outer flow guide sleeve, after external refrigeration, from outer flow guide sleeve, the end face of mechanical seal is rinsed in the inclination flushing hole of other side, sealing medium enters mechanical seal end surface by groove, form the liquid film that rigidity is relatively high, microcosmic make friction pair be separated, reduce frictional force and frictional heat, take away waste heat simultaneously.Vacuum shaft be enclosed within side medium overheated when ensure that the deformation of self is in certain limit, ensure comprise self contering orifice sleeve, the Effec-tive Function of guiding subassembly under micro-gap, improve efficiency and the working life of whole sealing system;
3. the rotating ring of mechanical seal is provided with inclination groove, and drawing is shown in the moulding of groove, and quantity is for being not less than 3, and angle of inclination is 0.2 ° to 45 °, and during operation, liquid enters sealing surface by groove;
4. outer flow guide sleeve arranges axial arranged flushing hole, flushing hole, radial in a certain angle with axle, makes the approach axis of sparge water consistent with pump shaft sense of rotation.
The invention has the beneficial effects as follows:
1. the heat produced when vacuum axle sleeve can intercept external agency and mechanical seal ring friction is effectively delivered to axle sleeve inside, prevents from causing seal leakage because axle sleeve internal expansion causes auxiliary seal ring in axle sleeve to lose efficacy; The vacuum structure of axle sleeve can cut down the deformation of generation, effectively reduces mechanical deformation and the thermal distortion of axle sleeve, makes it run more stable.Vacuum axle sleeve can reduce the overall weight of mechanical seal rotor, and transient equiliblium performance is improved, energy efficient.
2. in mechanical seal, main frame cavity side is provided with self contering restrictor ring, effectively can intercepts cavity side and cross thermal medium ingress engine tool seal chamber.Its self lubricity is good, utilizes fluid rotary to produce micro-gap in operation, prevents axle sleeve from wearing and tearing and overheated dielectric leakage; This restrictor ring is fixed on pressing plate and outer flow guide sleeve by auxiliary seal, axial and radial direction all can be floated, can ensure still can keep intrinsic sealing effect when main frame installation or fluctuation of service, pressing plate is provided with pressure compensation opening, restrictor ring can be prevented because of distortion, cannot feel relieved and cause quick-wearing, sealed sides medium can enter protection auxiliary seal from equalizing orifice;
3. rotating ring arranges groove, during operation, sealing medium enters mechanical seal end surface by groove, improves end force distribution, improves end face liquid film stiffness, take away waste heat simultaneously, and the PV value improving mechanical sealing friction pairs operation can reach more than 10 times.
4. the inclination flushing hole arranged can rinse sealing surface from all directions simultaneously, and the situation larger in cooling water and the sealing surface temperature difference is issued to splendid cooling effect, meanwhile, rinses direction consistent with seal rotary direction, the impulsive load on reduction seal ring.
The invention has the beneficial effects as follows: good seal performance, dielectric leakage is few, long operational time, long service life.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention;
Fig. 2 is the plan view of the rotating ring having groove in the present invention;
Fig. 3 is the plan view of the outer flow guide sleeve having flushing hole in the present invention;
Fig. 4 is the sectional view that the present invention is provided with positioning block.
Embodiment
The present invention is further illustrated below by way of specific embodiment.
Embodiment 1
A kind of refractory machinery seals device, comprise self contering restrictor ring 1, pressing plate 2, snap ring 3, rotating ring 4, stationary ring 5, stationary seat 6, straight pin 7, gland 8, Compress Spring 10, vacuum axle sleeve 11, outer flow guide sleeve 12, O type circle 13, Inner guide cover 14 and rotating shaft 20, as shown in FIG. 1 to 3, concrete structure is:
Vacuum axle sleeve 11 is hollow structure, the inner chamber of vacuum axle sleeve 11 is not higher than the high vacuum state of 0.01KPa, vacuum axle sleeve 11 overlaps and is fixed in rotating shaft 20, and be lined with O type circle 13 between vacuum axle sleeve 11 and rotating shaft 20, the outer side surface of vacuum axle sleeve 11 is provided with ring shaped step;
Inner guide cover 14 is for closing the cartridge type of one end open in bottom surface, Inner guide cover 14 is enclosed within vacuum axle sleeve 11 by the through hole that bottom surface is offered, Inner guide cover 14 is fixed on the ring shaped step of vacuum axle sleeve 11, the side of Inner guide cover 14 or bottom surface can be fixed on the ring shaped step of vacuum axle sleeve 11 with screw time fixing, between the inner side surface that rotating ring 4 is enclosed within Inner guide cover 14 and the outer side surface of vacuum axle sleeve 11, on the ring shaped step that rotating ring 4 screw, pin or key are removably fixed on vacuum axle sleeve 11 thus and vacuum axle sleeve 11 synchronous axial system;
Outer flow guide sleeve 12 is for closing the cartridge type of one end open in bottom surface, outer flow guide sleeve 12 to be enclosed within rotationally on vacuum axle sleeve 11 by the through hole that bottom surface is offered and to be located at outside Inner guide cover 14, the opening direction of outer flow guide sleeve 12 is consistent with the opening direction of Inner guide cover 12, Spielpassung is formed between the outer side wall of the madial wall of outer flow guide sleeve 12 and Inner guide cover 14, gland 8 is Flange-shaped Parts, the neck flange of gland 8 is enclosed within vacuum axle sleeve 11 rotationally, and the opening end of outer flow guide sleeve 12 and the neck flange of gland 8 are fixed;
Self contering restrictor ring 1, pressing plate 2 and snap ring 3 to be enclosed within rotationally successively on vacuum axle sleeve 11 and all to serve as a contrast between the outside of the inner side of flow guide sleeve 12 bottom surface outside and the bottom surface of Inner guide cover 14, self contering restrictor ring 1 is fixed on the inner chamber of outer flow guide sleeve 12 by pressing plate 2 and snap ring 3, straight pin 7 axially connects self contering restrictor ring 1 and rotates to prevent the mutually external flow guide sleeve 12 of self contering restrictor ring 1 with the inner side of outer flow guide sleeve 12 bottom surface, is lined with O type circle 13 between the end face of self contering restrictor ring 1 and pressing plate 2;
The static components that stationary ring 5 and stationary seat 6 are combined into one, described static components is enclosed within vacuum axle sleeve 11 rotationally, the outer end that straight pin 7 axially connects stationary seat 6 is rotated relative to gland 8 to prevent stationary seat 1 with gland 8, being lined with between the exterior edge face of stationary seat 6 and gland 8 can the Compress Spring 10 of axial stretching, the exterior edge face of stationary ring 5 props up rotating ring 4, fits mutually and relatively rotate between stationary ring 5 and rotating ring 4;
Outer flow guide sleeve 12 has sparge water inlet distribution channel 121 and sparge water outlet manifold passage 122, sparge water inlet distribution channel 121 and sparge water outlet manifold passage 122 respectively have one group, the outer side wall of sparge water inlet distribution channel 121 and all through outer flow guide sleeve 12 of sparge water outlet manifold passage 122 and endoporus sidewall, sparge water inlet distribution channel 121 is just to the opposing side of both rotating ring 4 and stationary ring 5, and sparge water outlet manifold passage 122 is just to the interval between pressing plate 2 and Inner guide cover 14.
In the present embodiment, rotating ring 4 is provided with three grooves 41; As shown in Figure 2, groove 41 is less than rotating ring 4 thickness by cutting a degree of depth on rotating ring 4, is highly less than the arc rear of difference of outer radius in rotating ring 4 annular and is formed, and formed by groove 41 and rotating ring 4 cross section, angle is 0.2 ° ~ 45 °; Groove 41 is evenly distributed around the central axis of rotating ring 4, and namely the line of groove 41 central point forms equilateral triangle;
In the present embodiment, outer flow guide sleeve 12 has 12 flushing holes 42, as shown in Figure 3, the outer side wall of the through outer flow guide sleeve 12 of flushing hole 42 difference and endoporus sidewall, the central axis of flushing hole 42 all becomes the angle of cut of one 20 ° ~ 45 ° with the tangent line of outer flow guide sleeve 12 cross section excircle place intersection point with central axis, flushing hole 42 is evenly distributed around the central axis of outer flow guide sleeve 12, and namely the line of flushing hole 42 central point forms dodecagon.
When the present embodiment uses, gland 8 is fixed in frame, vacuum axle sleeve 11, Inner guide cover 14 and rotating ring 4 synchronous axial system is driven when rotating shaft 20 is rotated, and self contering restrictor ring 1, pressing plate 2, snap ring 3, stationary ring 5, stationary seat 6, gland 8 and outer flow guide sleeve 12 all keep static with frame, fit mutually between stationary ring 5 and rotating ring 4 thus there is sliding friction, when stationary ring 5 and rotating ring 4 are because of friction after loss, the axial elastic force that Compress Spring 10 produces makes stationary ring 5 and rotating ring 4 remain to fit tightly; Vacuum axle sleeve 11 plays heat-blocking action by the inner chamber of high vacuum; Sparge water flows out from sparge water outlet manifold passage 122 after sparge water inlet distribution channel 121 injects again, and plays effect that is clean and cooling.
The structural feature of the present embodiment is:
1. mechanical seal sleeve is vacuum, axle sleeve inside is emptied and is made vacuum state, by deep hole trepan pre-processed deep trouth on axle sleeve of special facture, then axle sleeve being placed at degree of vacuum is closed by vacuum fusion welding technique under 0.01KPa state, ensures axle sleeve inner vacuum state;
2. in mechanical seal, main frame cavity side is provided with self contering restrictor ring, self contering restrictor ring is wear-resisting by graphite etc., the material that self-lubricating property is good is made, be positioned on static outer flow guide sleeve by compression auxiliary seal back pressing plate and snap ring, pressing plate is provided with pressure compensation opening, when mechanical seal runs, the hot water that self contering restrictor ring is effectively intercepted in pump cavity by minimum gap enters Seal cage, medium simultaneously in Seal cage flows to the opposite side of guiding subassembly from end face side by the pump action of the guiding subassembly be made up of outer flow guide sleeve and Inner guide cover etc., take away the heat that seal face produces, and flow out mechanical seal chamber by the hole on outer flow guide sleeve, after external refrigeration, from outer flow guide sleeve, the end face of mechanical seal is rinsed in the inclination flushing hole of other side, sealing medium enters mechanical seal end surface by groove, form the liquid film that rigidity is relatively high, microcosmic make friction pair be separated, reduce frictional force and frictional heat, take away waste heat simultaneously.Vacuum shaft be enclosed within side medium overheated when ensure that the deformation of self is in certain limit, ensure comprise self contering orifice sleeve, the Effec-tive Function of guiding subassembly under micro-gap, improve efficiency and the working life of whole sealing system;
3. the rotating ring of mechanical seal is provided with inclination groove, and drawing is shown in the moulding of groove, and quantity is for being not less than 3, and angle of inclination is 0.2 ° to 45 °, and during operation, liquid enters sealing surface by groove;
4. outer flow guide sleeve arranges axial arranged flushing hole, flushing hole, radial in a certain angle with axle, makes the approach axis of sparge water consistent with pump shaft sense of rotation.
Beneficial effect when the present embodiment uses is:
1. the heat produced when vacuum axle sleeve can intercept external agency and mechanical seal ring friction is effectively delivered to axle sleeve inside, prevents from causing seal leakage because axle sleeve internal expansion causes auxiliary seal ring in axle sleeve to lose efficacy; The vacuum structure of axle sleeve can cut down the deformation of generation, effectively reduces mechanical deformation and the thermal distortion of axle sleeve, makes it run more stable.Vacuum axle sleeve can reduce the overall weight of mechanical seal rotor, and transient equiliblium performance is improved, energy efficient.
2. in mechanical seal, main frame cavity side is provided with self contering restrictor ring, effectively can intercepts cavity side and cross thermal medium ingress engine tool seal chamber.Its self lubricity is good, utilizes fluid rotary to produce micro-gap in operation, prevents axle sleeve from wearing and tearing and overheated dielectric leakage; This restrictor ring is fixed on pressing plate and outer flow guide sleeve by auxiliary seal, axial and radial direction all can be floated, can ensure still can keep intrinsic sealing effect when main frame installation or fluctuation of service, pressing plate is provided with pressure compensation opening, restrictor ring can be prevented because of distortion, cannot feel relieved and cause quick-wearing, sealed sides medium can enter protection auxiliary seal from equalizing orifice;
3. rotating ring arranges groove, during operation, sealing medium enters mechanical seal end surface by groove, improves end force distribution, improves end face liquid film stiffness, take away waste heat simultaneously, and the PV value improving mechanical sealing friction pairs operation can reach more than 10 times.
4. the inclination flushing hole arranged can rinse sealing surface from all directions simultaneously, and the situation larger in cooling water and the sealing surface temperature difference is issued to splendid cooling effect, meanwhile, rinses direction consistent with seal rotary direction, the impulsive load on reduction seal ring.
Embodiment 2
A kind of refractory machinery seals device, comprise self contering restrictor ring 1, pressing plate 2, snap ring 3, rotating ring 4, stationary ring 5, stationary seat 6, straight pin 7, gland 8, Compress Spring 10, vacuum axle sleeve 11, outer flow guide sleeve 12, O type circle 13, Inner guide cover 14, O type circle 13 and rotating shaft 20, also comprise positioning block 9, as shown in Figure 4, concrete structure is: one end of positioning block 9 is enclosed within the locating slot on vacuum axle sleeve 11 outer side wall, and the interior edge face of positioning block 9 is removably fixed with the flange chassis of gland 8.Other structures are all same with embodiment 1.
When the present embodiment uses, when not running, keep the fixing of mutual alignment between gland 8 and vacuum axle sleeve 11 with positioning block 9, thus make the position of remaining parts all keep fixing, avoid, because other factors cause the changing of the relative positions of part position, being convenient to store and transport; During use, positioning block 9 is unloaded and can normally run.Other usings method are all same with embodiment 1.
Claims (2)
1. a refractory machinery seals device, comprises rotating ring (4), stationary ring (5), rotating shaft (20), vacuum axle sleeve (11) and O type circle (13),
Vacuum axle sleeve (11) is hollow structure, and the inner chamber of vacuum axle sleeve (11) is high vacuum state;
Vacuum axle sleeve (11) overlaps and is fixed in rotating shaft (20), rotating ring (4) overlaps and is fixed on vacuum axle sleeve (11), stationary ring (5) is enclosed within vacuum axle sleeve (11) rotationally, fits mutually and relatively rotate between stationary ring (5) and rotating ring (4);
O type circle (13) is lined with between vacuum axle sleeve (11) and rotating shaft (20);
It is characterized in that: also comprise self contering restrictor ring (1), pressing plate (2), snap ring (3), stationary seat (6), straight pin (7), gland (8), Compress Spring (10), outer flow guide sleeve (12) and Inner guide cover (14)
The outer side surface of vacuum axle sleeve (11) is provided with ring shaped step;
Inner guide cover (14) is for closing the cartridge type of one end open in bottom surface, Inner guide cover (14) is enclosed within vacuum axle sleeve (11) by the through hole that bottom surface is offered, Inner guide cover (14) is fixed on the ring shaped step of vacuum axle sleeve (11), rotating ring (4) is enclosed between the inner side surface of Inner guide cover (14) and the outer side surface of vacuum axle sleeve (11), and rotating ring (4) is removably fixed on the ring shaped step of vacuum axle sleeve (11);
Outer flow guide sleeve (12) is for closing the cartridge type of one end open in bottom surface, outer flow guide sleeve (12) is enclosed within vacuum axle sleeve (11) rotationally by the through hole that bottom surface is offered and goes up and be located at Inner guide cover (14) outward, the opening direction of outer flow guide sleeve (12) is consistent with the opening direction of Inner guide cover (12), Spielpassung is formed between the madial wall of outer flow guide sleeve (12) and the outer side wall of Inner guide cover (14), gland (8) is Flange-shaped Parts, the neck flange of gland (8) is enclosed within vacuum axle sleeve (11) rotationally, the opening end of outer flow guide sleeve (12) and the neck flange of gland (8) are fixed,
Self contering restrictor ring (1), pressing plate (2) and snap ring (3) are enclosed within vacuum axle sleeve (11) successively rotationally and go up and all serve as a contrast between the outside of the inner side of flow guide sleeve (12) bottom surface outside and the bottom surface of Inner guide cover (14), self contering restrictor ring (1) is fixed on the inner chamber of outer flow guide sleeve (12) by pressing plate (2) and snap ring (3), straight pin (7) axially connects the inner side of self contering restrictor ring (1) and outer flow guide sleeve (12) bottom surface, O type circle (13) is lined with between the end face of self contering restrictor ring (1) and pressing plate (2),
The static components that stationary ring (5) and stationary seat (6) are combined into one, described static components is enclosed within vacuum axle sleeve (11) rotationally, straight pin (7) axially connects outer end and the gland (8) of stationary seat (6), being lined with between the exterior edge face of stationary seat (6) and gland (8) can the Compress Spring (10) of axial stretching, the exterior edge face of stationary ring (5) props up rotating ring (4), fits mutually and relatively rotate between stationary ring (5) and rotating ring (4);
Outer flow guide sleeve (12) has sparge water inlet distribution channel (121) and sparge water outlet manifold passage (122), sparge water inlet distribution channel (121) and sparge water outlet manifold passage (122) respectively have one group, the outer side wall of sparge water inlet distribution channel (121) and all through outer flow guide sleeve (12) of sparge water outlet manifold passage (122) and endoporus sidewall, sparge water inlet distribution channel (121) is just to rotating ring (4) and stationary ring (5) both opposing sides, sparge water outlet manifold passage (122) is just to the interval between pressing plate (2) and Inner guide cover (14).
2. refractory machinery seals device as claimed in claim 1, is characterized in that: rotating ring (4) is provided with at least three grooves (41); Groove (41) is less than rotating ring (4) thickness by cutting a degree of depth on rotating ring (4), is highly less than the arc rear of difference of outer radius in rotating ring (4) annular and is formed, and formed by groove (41) and rotating ring (4) cross section, angle is 0.2 ° ~ 45 °; Groove (41) is evenly distributed around the central axis of rotating ring (4), and namely the line of groove (41) central point forms regular polygon;
Outer flow guide sleeve (12) has at least six flushing holes (42), the outer side wall of the through outer flow guide sleeve (12) of flushing hole (42) difference and endoporus sidewall, the central axis of flushing hole (42) all becomes the angle of cut of one 20 ° ~ 45 ° with the tangent line of outer flow guide sleeve (12) cross section excircle place intersection point with central axis, flushing hole (42) is evenly distributed around the central axis of outer flow guide sleeve (12), i.e. the line of flushing hole (42) central point forms regular polygon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445010.6A CN104329466B (en) | 2014-09-03 | 2014-09-03 | Refractory machinery seals device |
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| CN201410445010.6A CN104329466B (en) | 2014-09-03 | 2014-09-03 | Refractory machinery seals device |
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| CN104329466B true CN104329466B (en) | 2016-04-06 |
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| CN109163095A (en) * | 2018-09-28 | 2019-01-08 | 安徽安密机械密封有限公司 | A kind of multiple springs mechanical sealing assembly and its installation method |
| CN109139923A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of split spring mechanical seal part and its preparation process |
| CN110145603B (en) * | 2019-05-21 | 2024-03-08 | 宁波领智机械科技有限公司 | Shaft sealing device of pulverizer |
| CN111250452A (en) * | 2020-03-24 | 2020-06-09 | 青岛航保机电设备有限公司 | Mechanical sealing device suitable for multiple places |
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| WO2011034840A2 (en) * | 2009-09-15 | 2011-03-24 | Lawrence Pumps, Inc. | Vertically rotatable shaft assembly with thermally insulated housing |
| CN203161857U (en) * | 2013-04-07 | 2013-08-28 | 四川皇龙智能破碎技术股份有限公司 | Heat-resistant bearing block |
| CN103591454B (en) * | 2013-11-15 | 2015-09-23 | 舟山市银奇轻工机械有限公司 | Liquid nitrogen filling device |
| CN203770195U (en) * | 2013-12-26 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Mechanical sealing device for high temperature medium |
| CN204153154U (en) * | 2014-09-03 | 2015-02-11 | 上海乐合流体机械有限公司 | Refractory machinery seals device |
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2014
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