CN206206599U - A kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type - Google Patents
A kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type Download PDFInfo
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- CN206206599U CN206206599U CN201621292179.3U CN201621292179U CN206206599U CN 206206599 U CN206206599 U CN 206206599U CN 201621292179 U CN201621292179 U CN 201621292179U CN 206206599 U CN206206599 U CN 206206599U
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Abstract
The utility model belongs to sealing device technical field, a kind of specifically related to bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type, including the rotating ring and stationary seat that are arranged between the housing of plant equipment and rotary shaft, axle sleeve is arranged with rotary shaft, rotating ring sealing ring is provided between rotating ring and axle sleeve, spring is provided between stationary ring and stationary seat, rotating ring right side is provided with seals dam and more than four symmetrical tree-like grooves, sealing weir, the radially even outer rim for being distributed in rotating ring right side of tree-like groove, seals dam is located at the inner side of rotating ring right side, rotating ring right side is provided with afflux annular groove, afflux annular groove is located at all tree-like groove roots, afflux annular groove internal diameter is provided with multiple drainage ducts to being uniformly distributed, it is seal cavity between rotating ring and housing, drainage duct connected set stream annular groove and seal cavity.The purpose is to be used for overcoming existing bidirectional rotation hydrodynamic mechanical seal to exist, hydrodynamic effect is small, leakage rate is big and lacks the defect of particle-resistant interference performance.
Description
Technical field
The utility model belongs to sealing device technical field, and in particular to a kind of bidirectional rotation auxiliary start stop mode can resorption type
Tree-like groove end face seal structure.
Background technology
The mechanical seal of existing single rotation direction, a kind of fluid with single-row helicla flute as disclosed in U.S. US4212475
A kind of Hydrodynamic pressure type double spiral groove end face seal disclosed in dynamic and static pressure mating type non-contact mechanical seal, US5201521
Device, double-loop spiral-slot end sealing, ZL201020106087.8 disclosed in Chinese patent ZL96108614.9 it is disclosed from
Scheming dry gas seals etc., these Spiral Groove Mechanical Seals are only applicable to single direction rotation, and its medium for forming hydrodynamic is all
Pump into groove, pressure higher is produced in type groove root, so as to form face opening power, reduce the friction of seal face, but
While but increasing the leakage between rotating ring and stationary ring end face；Although double spiral groove mechanically-sealing apparatus utilize two row helicla flutes
Produced pump draws fluid pressure difference inside and outside pressure difference and seal face and balances each other, and single-row helicla flute is overcome to a certain extent
The big defect of mechanical seal leakage rate, but its complex structure, big requirements of installation space, are only applicable to seal face two
The little operating mode of side liquid pressure difference, adds the performance characteristics of single rotation direction, significantly limit its range of application.Existing double rotational directions
Mechanical seal, such as Chinese patent 201210041042.5 is " like mushroom type groove bidirectional rotation Hydrodynamic pressure type mechanical seal knot
Structure ", the 201010211454.5 gas lubrication non-contacting mechanical seal device of bidirectional rotation " can ", United States Patent (USP) US5090712
Deng, sealing difficulty during rotating machinery positive and negative rotation is preferably solved, these mechanical seals are to open up one in dynamic and static ring end face
Fixed number amount, the type groove with axial symmetry geometry, no matter rotary shaft is rotated forward or inverted, and has the type groove of half quantity
Hydrodynamic effect is produced using the fluid sinked when rotating, the unlatching of the dynamic and static ring seal face for separating bonded to each other is formed
Power, makes dynamic and static ring end face disengage reduction and weares and teares, and a layer for being formed between two end faces continuously, stable has necessarily just
The fluid film of degree, prevents the leakage of fluid.Lot of documents is proved such double rotational directions mechanical seal and opens the more unidirectional groove profile of performance
Difference, is particularly easy to start in sealing and shutdown phase forms in sealing contact, causes the initial failure of sealing, and clean to fluid
Degree requires higher, it is necessary to related auxiliary filtration system.ZL201310201473.3's " from the mechanical seal of pumping Hydrodynamic pressure type "
Proposition solves this problem well.But, it is still present the unstable problem of rotation direction selectivity deficiency, Opening pressure.
Utility model content
The purpose of this utility model is：Aim to provide a kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face of resorption type it is close
Seal structure, for overcoming existing bidirectional rotation hydrodynamic mechanical seal to exist, hydrodynamic effect is small, leakage rate is big and scarce
The defect of weary particle-resistant interference performance.
To realize above-mentioned technical purpose, the technical solution adopted in the utility model is as follows：
A kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type, including be arranged at plant equipment
Rotating ring and stationary seat between housing and rotary shaft, are arranged with axle sleeve in the rotary shaft, it is tight that the axle sleeve right-hand member is provided with first
Determine screw, the axle sleeve is fixed on the rotary shaft by the first holding screw, and the rotating ring left end is provided with the second holding screw, institute
State rotating ring to be fixed on axle sleeve by the second holding screw, rotating ring sealing ring is provided between the rotating ring and axle sleeve, it is described quiet
Stationary ring is provided with ring seat, stationary ring sealing ring is provided between the stationary ring and stationary seat endoporus, the stationary ring is radially offered
Gathering sill, is provided with stop pin in the gathering sill, the free end of the stop pin is fastened on stationary seat, the stationary ring and stationary ring
Spring is provided between seat, the first sealing ring is provided between the housing and stationary seat,
The rotating ring right side is provided with seals dam and more than four symmetrical tree-like groove, sealing weirs, described tree-like
The radially even outer rim for being distributed in rotating ring right side of groove, the tree-like groove is by upper end left surface, upper end right flank, lower end left side
Face and lower end right flank are constituted,
The seals dam is located at the inner side of rotating ring right side, and the sealing surface between the two neighboring tree-like groove is sealing
Weir, the rotating ring right side is provided with afflux annular groove, and the afflux annular groove is located at all tree-like groove roots, the afflux annular groove internal diameter
Multiple drainage ducts are provided with to being uniformly distributed, are seal cavity, the drainage duct connected set stream between the rotating ring and housing
Annular groove and seal cavity, the stationary ring left side are provided with the conical surface.
Such structure design, when rotary shaft is rotated forward, upper end left surface is upper end windward side, and upper end right flank is upper end
Lee face, lower end left surface is lower end windward side, and lower end right flank is lower end lee face；
When rotary shaft is inverted, upper end left surface is upper end lee face, and upper end right flank is upper end windward side, lower end left side
Face is lower end lee face, and lower end right flank is lower end windward side,
Using symmetrical tree-like groove, it is possible to achieve in forward or reverse, the windward side of tree-like groove and lee face replace
Fluid resorption function is realized, ensures all produce the hydrodynamic of stabilization during discretionary choices successively；
So-called fluid resorption function, i.e., when rotating ring is in a certain fixed steering, the medium in annular seal space is along tree-like groove
End lee face wedging, due to the reduction of radius of turn, the linear velocity of fluid is reduced at the root of tree-like groove upper end, now the portion of fluid
Transfer can be converted into pressure energy, be changed into high-pressure fluid, and segment fluid flow is accelerated into high-velocity fluid by tree-like groove upper end windward side, from
Under mental power function, along tree-like groove upper end windward towards rotating ring outside diameter flow and " backflow " to annular seal space；
Segment fluid flow enters tree-like groove lower end, and now tree-like groove lower end windward side tip forms higher-pressure region, and higher-pressure region passes through
Windward side flows into bottom, by rotating ring drainage duct resorption to seal cavity；
Leeward effect makes the tip of tree-like groove lower end lee face form negative pressuren zone, and back suction flows through the portion of rotating ring drainage duct side
Shunting body, is delivered up and then completes one cycle by lower end lee face, and circulation every time all completes the resorption circulation of fluid；
Finally, the partial compromise fluid at seals dam also forms the situation of negative pressure at the sophisticated place of tree-like groove lower end lee face
Under realize resorption.
Such structure design, dynamic pressure effect is big, leakage rate is small, in rotating ring operation process, by the medium of tree-like groove,
In the presence of fluid resorption function, and the flowing away from seals dam is produced, this allows for being present in consolidating from pumping fluid
Body particle will not enter seals dam area, it is to avoid the abrasion of particles of seals dam end face, resorption be realized or from pumping, while by tree
The point effect of shape groove produces dynamic pressure, contributes to the noncontact of sealing pair to open；Such circulation resorption, on the one hand, realize
The self-lubricating of mechanical seal；On the other hand, continuous circulation of the fluid between sealing surface, timely the frictional heat between sealing surface
Take away, realize rinsing certainly for sealing.
Further limit, the stationary seat radially offers air admission hole, and the air admission hole bottom is provided with the first air intake duct, institute
The second air intake duct that stationary ring is provided with J-shaped is stated, the second air intake duct upper end connects with the first air intake duct end, second air inlet
The end in road connects the left side of stationary ring.Such structure design, in starting and parking, ventilation is passed through high pressure gas to air admission hole
Body, gas enters the second air intake duct through the first air intake duct, and the right side to rotating ring is impacted, and makes the right side of rotating ring and stationary ring
Left side separates, and reduces and starts and shutdown phase decreasing failure rate higher, overcomes bidirectional rotary type hydrodynamic type groove in itself
Unlatching performance deficiency defect.
Further limit, the stationary seat is provided with groove around the first air intake duct end, second is provided with the groove
Sealing ring.Such structure design, it is possible to reduce the gas that gases at high pressure occur when entering the second air intake duct from the first air intake duct
Leakage, improves the utilization rate of gases at high pressure.
Further limit, the stationary ring left side is provided with multiple auxiliary circulating tanks along warp-wise.Such structure design, makes Jie
Mass flow is logical more smooth.
Further limit, the second air intake duct end is located at auxiliary circulating tanks center.Such structure design, high pressure gas
Body utilization rate is higher.
Further limit, the auxiliary circulating tanks outer radius is less than afflux annular groove inside radius R3.Such structure design, the
Two air intake duct ends are not overlapped with trench structure, it is ensured that dynamic pressure is not lost in sealing start-stop.
Further limit, the conical surface inside radius R7 is more than afflux annular groove outer radius R4, the drainage duct and collecting ring
The internal diameter of groove is tangent on rotating ring right side, the groove widths of the radius Rm more than afflux annular groove in the drainage duct, i.e. Rm ＞ R4-
R3.Such structure design, will connect tree-like groove root is unobstructed with drainage duct so that media flow is more unimpeded
Further limit, the quantity of the tree-like groove is equal with the quantity in drainage duct.Such structure design, sealing effect
Fruit is preferably.
Further limit, the quantity of the tree-like groove is 12, the quantity in the drainage duct is also 12.So
Structure design, sealing effectiveness is preferable.
Further limit, the stationary ring sealing ring, rotating ring sealing ring, the first sealing ring and the second sealing ring are O
Type circle.Such structure design, sealing effectiveness is more preferably.
Brief description of the drawings
The nonlimiting examples that the utility model can be given by accompanying drawing are further illustrated；
Fig. 1 is that a kind of bidirectional rotation auxiliary start stop mode of the utility model can the tree-like groove end face seal structure embodiment of resorption type
Cross section structure diagram；
Fig. 2 is that a kind of bidirectional rotation auxiliary start stop mode of the utility model can the tree-like groove end face seal structure embodiment of resorption type
The end face structure schematic diagram of middle rotating ring；
Fig. 3 is that a kind of bidirectional rotation auxiliary start stop mode of the utility model can the tree-like groove end face seal structure embodiment of resorption type
The end face structure schematic diagram of middle stationary ring；
Fig. 4 is that a kind of bidirectional rotation auxiliary start stop mode of the utility model can the tree-like groove end face seal structure embodiment of resorption type
Fluid flow state schematic diagram when middle rotary shaft is rotated forward；
Fig. 5 is that a kind of bidirectional rotation auxiliary start stop mode of the utility model can the tree-like groove end face seal structure embodiment of resorption type
Fluid flow state schematic diagram when middle rotary shaft is inverted；
Main element symbol description is as follows：
Housing 1, air admission hole 2, stationary seat 3, stop pin 4, spring 5, axle sleeve 6, the first holding screw 7, rotary shaft 8, stationary ring
9th, auxiliary circulating tanks 91, the conical surface 92, stationary ring sealing ring 10, the first air intake duct 111, the second air intake duct 112, rotating ring sealing ring
12nd, drainage duct 13, the second holding screw 14, rotating ring 15, tree-like groove 151, sealing weir 152, seals dam 153, afflux annular groove
154th, in seal cavity 16, upper end left surface 171, upper end right flank 172, lower end left surface 173, lower end right flank 174, rotating ring
Half in radius R1, rotating ring outer radius R2, afflux annular groove inside radius R3, afflux annular groove outer radius R4, drainage duct radius Rm, stationary ring
Footpath R5, stationary ring outer radius R6, conical surface inside radius R7, the second air intake duct radius Rn.
Specific embodiment
In order that those skilled in the art may be better understood the utility model, it is right with reference to the accompanying drawings and examples
Technical solutions of the utility model are further illustrated.
As shown in Fig. 1,2,3,4 and 5, a kind of bidirectional rotation auxiliary start stop mode of the present utility model can the tree-like groove end of resorption type
Surface seal structure, including rotating ring 15 and stationary seat 3 between the housing 1 of plant equipment and rotary shaft 8 are arranged at, in rotary shaft 8
Axle sleeve 6 is arranged with, the right-hand member of axle sleeve 6 is provided with the first holding screw 7, and axle sleeve 6 is fixed on rotating shaft 8 by the first holding screw 7,
The left end of rotating ring 15 is provided with the second holding screw 14, and rotating ring 15 is fixed on axle sleeve 6 by the second holding screw 14, rotating ring 15 and axle
It is provided between set 6 in rotating ring sealing ring 12, stationary seat 3 and is provided with stationary ring 9, stationary ring use is provided between stationary ring 9 and the endoporus of stationary seat 3
Sealing ring 10, stationary ring 9 radially offers gathering sill, is provided with stop pin 4 in gathering sill, and the free end of stop pin 4 is fastened on quiet
In ring seat 3, spring 5 is provided between stationary ring 9 and stationary seat 3, the first sealing ring is provided between housing 1 and stationary seat 3,
The right side of rotating ring 15 is provided with seals dam 153 and more than four symmetrical tree-like grooves 151, sealing weirs 152, tree
The radially even outer rim for being distributed in the right side of rotating ring 15 of shape groove 151, tree-like groove 151 is by upper end left surface 171, upper end right flank
172nd, lower end left surface 173 and lower end right flank 174 are constituted,
Seals dam 153 is located at the inner side of the right side of rotating ring 15, and the sealing surface between two neighboring tree-like groove 151 is sealing weir
152, the right side of rotating ring 15 is provided with afflux annular groove 154, and afflux annular groove 154 is located at all roots of tree-like groove 151, afflux annular groove 154
Interior radial direction is uniformly distributed and is provided with multiple drainage ducts 13, is seal cavity 16 between rotating ring 15 and housing 1, and drainage duct 13 connects
Afflux annular groove 154 and seal cavity 16, the left side of stationary ring 9 are provided with the conical surface 92.
In the present embodiment, when rotary shaft 8 is rotated forward, upper end left surface 171 is upper end windward side, and upper end right flank 172 is
Upper end lee face, lower end left surface 173 is lower end windward side, and lower end right flank 174 is lower end lee face；
When rotary shaft 8 is inverted, upper end left surface 171 is upper end lee face, and upper end right flank 172 is upper end windward side, under
End left surface 173 is lower end lee face, and lower end right flank 174 is lower end windward side,
Using symmetrical tree-like groove 151, it is possible to achieve the windward side of tree-like groove 151 and leeward in forward or reverse
Fluid resorption function is alternately realized in face, ensures all produce the hydrodynamic of stabilization during discretionary choices successively；
So-called fluid resorption function, i.e., when rotating ring is in a certain fixed steering, the medium in annular seal space 16 is along tree-like groove
151 upper end lee face wedgings, due to the reduction of radius of turn, the linear velocity reduction of fluid at the upper end root of tree-like groove 151, now
The part kinetic energy of fluid is converted into pressure energy, is changed into high-pressure fluid, and segment fluid flow is accelerated into height by the upper end windward side of tree-like groove 151
Fast fluid, under the action of the centrifugal force, along the upper end of tree-like groove 151 windward towards the outside diameter of rotating ring 15 flow and " backflow " to annular seal space
16；
Segment fluid flow enters the lower end of tree-like groove 151, and now the lower end windward side of tree-like groove 151 tip forms higher-pressure region, high pressure
Area flows into bottom by windward side, by the resorption of rotating ring drainage duct 13 to seal cavity 16；
Leeward effect makes the tip of the lower end lee face of tree-like groove 151 form negative pressuren zone, and back suction flows through rotating ring drainage duct 13
The segment fluid flow of side, is delivered up and then completes one cycle by lower end lee face, and circulation every time all completes the resorption of fluid
Circulation；
Finally, the partial compromise fluid at seals dam 153 also forms negative pressure at the sophisticated place of the lower end lee face of tree-like groove 151
In the case of realize resorption.
Such structure design, dynamic pressure effect is big, leakage rate is small, in the operation process of rotating ring 15, by tree-like groove 151
Medium, in the presence of fluid resorption function, and produces the flowing away from seals dam 153, and this allows for being present in from pump flow
Solid particle in body will not enter the area of seals dam 153, it is to avoid the abrasion of particles of the end face of seals dam 153, realize resorption or from
Pumping, while producing dynamic pressure by the point effect of tree-like groove 151, contributes to the noncontact of sealing pair to open；Such circulation
Resorption, on the one hand, realize the self-lubricating of mechanical seal；On the other hand, continuous circulation of the fluid between sealing surface, sealing
Frictional heat between face is taken away in time, realizes rinsing certainly for sealing.
It is preferred that, the radial direction of stationary seat 3 offers air admission hole 2, and the bottom of air admission hole 2 is provided with the first air intake duct 111, and stationary ring 9 is provided with J
Second air intake duct 112 of shape, the upper end of the second air intake duct 112 connects with the end of the first air intake duct 111, the end of the second air intake duct 112
The left side of end connection stationary ring 9.Such structure design, in starting and parking, ventilation is passed through gases at high pressure, gas to air admission hole 2
Body enters the second air intake duct 112 through the first air intake duct 111, and the right side to rotating ring 15 is impacted, and makes the right side of rotating ring 15
Separated with the left side of stationary ring 9, reduce and start and shutdown phase decreasing failure rate higher, overcome bidirectional rotary type Hydrodynamic pressure type
Groove unlatching performance deficiency defect in itself.In fact, also dependent on actual conditions specifically consider reduce start and shutdown phase compared with
The scheme of decreasing failure rate high.
It is preferred that, stationary seat 3 is provided with groove around the end of the first air intake duct 111, and the second sealing ring is provided with groove.So
Structure design, it is possible to reduce occur when gases at high pressure are from the first air intake duct 111 into the second air intake duct 112 gas leakage,
Improve the utilization rate of gases at high pressure.In fact, also dependent on actual conditions, it is considered to which other improve the side of the utilization rate of gases at high pressure
Case.
It is preferred that the left side of stationary ring 9 is provided with multiple auxiliary circulating tanks 91 along warp-wise.Such structure design, makes flow of media more
Plus it is smooth.In fact, also dependent on actual conditions, it is considered to which other can make flow of media smoothly structure design.
It is preferred that the end of the second air intake duct 112 is located at the center of auxiliary circulating tanks 91.Such structure design, gases at high pressure are utilized
Rate is higher.In fact, also dependent on actual conditions, it is considered to which other can strengthen the structure design of gases at high pressure utilization rate.
It is preferred that auxiliary circulating tanks 91 outer radius is less than the inside radius R3 of afflux annular groove 154.Such structure design, the second air inlet
The end of road 112 is not overlapped with trench structure, it is ensured that dynamic pressure is not lost in sealing start-stop.In fact, also dependent on actual conditions, tool
Body considers to ensure to seal the scheme do not lost of dynamic pressure in start-stop.
It is preferred that the inside radius R7 of the conical surface 92 is more than the outer radius R4 of afflux annular groove 154, drainage duct 13 is interior with afflux annular groove 154
Footpath is tangent on the right side of rotating ring 15, the groove widths of the radius Rm more than afflux annular groove 154 in drainage duct 13, i.e. Rm ＞ R4-R3.This
The structure design of sample, will connect the root of tree-like groove 151 is unobstructed with drainage duct 13 so that media flow is more unimpeded.
In fact, also dependent on actual conditions, it is specific to consider to cause the scheme that media flow is more unimpeded.
It is preferred that the quantity of tree-like groove 151 is equal with the quantity in drainage duct 13.Such structure design, sealing effectiveness compared with
It is good.In fact, also dependent on actual conditions, specifically considering the quantity of tree-like groove 151 and the quantitative relation in drainage duct 13.
It is preferred that the quantity of tree-like groove 151 is 12, the quantity in drainage duct 13 is also 12.Such structure sets
Meter, sealing effectiveness is preferable.In fact, also dependent on actual conditions, specifically consider the quantity in tree-like groove 151 and drainage duct 13,
As long as the quantity in tree-like groove 151 and drainage duct 13 is quite.
It is preferred that stationary ring sealing ring 10, rotating ring sealing ring 12, the first sealing ring and the second sealing ring are O-ring.This
The structure design of sample, sealing effectiveness is more preferably.In fact, also dependent on actual conditions, it is considered to the sealing ring of other models.
A kind of bidirectional rotation auxiliary start stop mode for providing the utility model above can the tree-like groove end face seal knot of resorption type
Structure is described in detail.The explanation of specific embodiment is only intended to help and understands that method of the present utility model and its core are thought
Think.It should be pointed out that for those skilled in the art, on the premise of the utility model principle is not departed from,
Some improvement and modification can also be carried out to the utility model, these are improved and modification also falls into the utility model claim
In protection domain.
Claims (10)
1. a kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type, including the shell for being arranged at plant equipment
Rotating ring (15) and stationary seat (3) between body (1) and rotary shaft (8), axle sleeve (6), the axle are arranged with the rotary shaft (8)
Set (6) right-hand member is provided with the first holding screw (7), and the axle sleeve (6) is fixed in rotary shaft (8) by the first holding screw (7),
Rotating ring (15) left end is provided with the second holding screw (14), and the rotating ring (15) is fixed on axle by the second holding screw (14)
On set (6), it is provided between the rotating ring (15) and axle sleeve (6) in rotating ring sealing ring (12), the stationary seat (3) and is provided with stationary ring
(9) stationary ring sealing ring (10), is provided between the stationary ring (9) and stationary seat (3) endoporus, the stationary ring (9) radially opens up
There is gathering sill, stop pin (4) is provided with the gathering sill, the free end of the stop pin (4) is fastened on stationary seat (3), institute
State and spring (5) be provided between stationary ring (9) and stationary seat (3), the first sealing ring is provided between the housing (1) and stationary seat (3),
It is characterized in that：Rotating ring (15) right side is provided with seals dam (153) and more than four symmetrical tree-like grooves
(151), sealing weir (152), the tree-like radially even outer rim for being distributed in rotating ring (15) right side of groove (151), the tree
Shape groove (151) is by upper end left surface (171), upper end right flank (172), lower end left surface (173) and lower end right flank (174) structure
Into,
The seals dam (153) positioned at the inner side of rotating ring (15) right side, the sealing between the two neighboring tree-like groove (151)
Face is sealing weir (152), and rotating ring (15) right side is provided with afflux annular groove (154), and the afflux annular groove (154) is positioned at all
Radially it is uniformly distributed in tree-like groove (151) root, the afflux annular groove (154) and is provided with multiple drainage ducts (13), the rotating ring
(15) it is seal cavity (16) and housing (1) between, the drainage duct (13) connects afflux annular groove (154) and seal cavity
(16), stationary ring (9) left side is provided with the conical surface (92).
2. a kind of bidirectional rotation auxiliary start stop mode according to claim 1 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：The stationary seat (3) radially offers air admission hole (2), and air admission hole (2) bottom is provided with the first air intake duct
(111), the stationary ring (9) is provided with second air intake duct (112) of J-shaped, the second air intake duct (112) upper end and the first air intake duct
(111) end connection, the left side of end connection stationary ring (9) of second air intake duct (112).
3. a kind of bidirectional rotation auxiliary start stop mode according to claim 2 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：The stationary seat (3) is provided with groove around the first air intake duct (111) end, and it is close to be provided with second in the groove
Seal.
4. a kind of bidirectional rotation auxiliary start stop mode according to claim 3 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：Stationary ring (9) left side is provided with multiple auxiliary circulating tanks (91) along warp-wise.
5. a kind of bidirectional rotation auxiliary start stop mode according to claim 4 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：Second air intake duct (112) end is located at auxiliary circulating tanks (91) center.
6. a kind of bidirectional rotation auxiliary start stop mode according to claim 5 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：Described auxiliary circulating tanks (91) outer radius is less than afflux annular groove (154) inside radius R3。
7. a kind of bidirectional rotation auxiliary start stop mode according to claim 6 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：The conical surface (92) the inside radius R7More than afflux annular groove (154) outer radius R4, the drainage duct (13) and afflux
The internal diameter of annular groove (154) is tangent on rotating ring (15) right side, the radius R of the drainage duct (13)mMore than afflux annular groove
(154) groove width, i.e. Rm＞ R4-R3。
8. a kind of bidirectional rotation auxiliary start stop mode according to claim 7 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：The quantity of the tree-like groove (151) is equal with the quantity of drainage duct (13).
9. a kind of bidirectional rotation auxiliary start stop mode according to claim 8 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：The quantity of the tree-like groove (151) is 12, and the quantity of the drainage duct (13) is also 12.
10. a kind of bidirectional rotation auxiliary start stop mode according to claim 9 can the tree-like groove end face seal structure of resorption type, its
It is characterised by：The stationary ring sealing ring (10), rotating ring sealing ring (12), the first sealing ring and the second sealing ring are O-shaped
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292179.3U CN206206599U (en) | 2016-11-29 | 2016-11-29 | A kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292179.3U CN206206599U (en) | 2016-11-29 | 2016-11-29 | A kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type |
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| CN206206599U true CN206206599U (en) | 2017-05-31 |
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|---|---|---|---|
| CN201621292179.3U Withdrawn - After Issue CN206206599U (en) | 2016-11-29 | 2016-11-29 | A kind of bidirectional rotation auxiliary start stop mode can the tree-like groove end face seal structure of resorption type |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352093A (en) * | 2016-11-29 | 2017-01-25 | 淮海工学院 | Bidirectional rotation-assisted starting and stopping type resorption tree-shaped groove end face seal structure |
| CN107228197A (en) * | 2017-06-12 | 2017-10-03 | 淮海工学院 | A kind of dry gas seals grooving method and its device designed based on bottom land micro forming |
| CN108050258A (en) * | 2017-11-22 | 2018-05-18 | 南昌工程学院 | A kind of mechanical seal structure of imitative brambles shape type groove |
| CN116733975A (en) * | 2023-08-14 | 2023-09-12 | 东营海森密封技术有限责任公司 | Dynamic and static pressure combined type air film sealing device |
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2016
- 2016-11-29 CN CN201621292179.3U patent/CN206206599U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352093A (en) * | 2016-11-29 | 2017-01-25 | 淮海工学院 | Bidirectional rotation-assisted starting and stopping type resorption tree-shaped groove end face seal structure |
| CN107228197A (en) * | 2017-06-12 | 2017-10-03 | 淮海工学院 | A kind of dry gas seals grooving method and its device designed based on bottom land micro forming |
| CN107228197B (en) * | 2017-06-12 | 2019-02-19 | 淮海工学院 | A kind of dry gas seals grooving method based on the design of slot bottom micro forming |
| CN108050258A (en) * | 2017-11-22 | 2018-05-18 | 南昌工程学院 | A kind of mechanical seal structure of imitative brambles shape type groove |
| CN116733975A (en) * | 2023-08-14 | 2023-09-12 | 东营海森密封技术有限责任公司 | Dynamic and static pressure combined type air film sealing device |
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