A kind of condensation sealing device based on mechanical seal
Technical field
It the utility model is related to sealing system technical field, especially a kind of condensation sealing device based on mechanical seal.
Background technology
In mechanical seal field, mechanical seal for pump is to lean on elastic component(Such as spring either bellows or spring and ripple
Line pipe combined member)With the pressure of sealing medium on contact surface of the rotating ring with stationary ring of rotation(End face)Produce appropriate compression
Power, the two end faces are brought into close contact, one layer of very thin liquid mould is maintained between end face and reaches the purpose of sealing.Due in pump shaft
During rotation, it may occur that substantial amounts of heat, and sealing fluid is transferred heat to, sealing fluid accelerates the aging of sealing fluid after by high temperature
It is rotten, influence the sealing property of sealing fluid.2 shortcomings be present in the mechanical sealing device used for pump of prior art:Mechanical seal field
Anti-leak protection device have that to combine precision low, the shortcomings that serious wear;The shortcomings that sealing device skew be present, increase dimension
Repair workload and maintenance cost.
The content of the invention
The purpose of this utility model is to provide a kind of condensation sealing device based on mechanical seal, good sealing effect, fortune
Row is safe and with cooling down, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme:A kind of condensation sealing based on mechanical seal
Device, including pump shaft, axle sleeve is cased with the pump shaft, and the central raised of the axle sleeve is set to mounting groove, be cased with outside the axle sleeve
Stationary ring components, rotating ring components, stationary ring components include the first floating ring and the second floating ring, and rotating ring components include first
Rotating ring and the second rotating ring, the side of first floating ring and the second floating ring are respectively arranged in the first floating ring mounting seat
With the second floating ring mounting seat, opposite side is fitted and connected the first rotating ring and the second rotating ring, and first rotating ring is arranged on
In rotating ring mounting seat, the second rotating ring is arranged on the mounting groove in the middle part of axle sleeve, first floating ring and the second floating ring
Close air inlet/outlet side be provided with first transmission ring assemblies and second transmission ring assemblies, second transmission ring assemblies on be provided with
Spring, the first transmission ring assemblies are connected with the lower end of seal, and the upper end of the second transmission ring assemblies connection gland is described close
Screw is provided between envelope body and gland, is integrated by screw installation, indent cavity is set to inside the seal and gland
Cooling chamber.
As further program of the utility model:The rotating ring mounting seat is arranged on the bottom of axle sleeve, and is provided with spiral shell
Nail, it is arranged on by screw on axle sleeve.
As further program of the utility model:The top of the gland installed respectively by two screws make by oneself ring and
Locating ring, hold-down ring is connected by screw above locating ring, folder is installed between the inner side and pump shaft of locating ring and hold-down ring
Tight set.
As further program of the utility model:Suspension ring are provided with the seal, air inlet is provided with the inside of seal
Port and air outlet, pipe joint is provided with port.
As further program of the utility model:Locking glue is equipped with the screw.
As further program of the utility model:Between the pump shaft and axle sleeve, between axle sleeve and rotating ring mounting seat,
O-ring seals are equipped between seal and gland between second rotating ring and mounting groove.
Compared with prior art, the utility model beneficial effect:
Based on the condensation sealing device of mechanical seal, stationary ring components are increased by the transformation of double containment, with cooling side
Method reduces the temperature of sealing fluid, can effectively reduce and friction is produced between mechanically-sealing apparatus and driving shaft, reduce driving shaft
Abrasion, improve the sealing property of mechanically-sealing apparatus.
Brief description of the drawings
Fig. 1 is the sectional view of mechanical seal for pump of the present utility model;
Fig. 2 is the partial sectional view of mechanical seal for pump of the present utility model;
Fig. 3 is the top view of mechanical seal for pump of the present utility model.
In figure:1- pump shafts;2- axle sleeves;3-O shape sealing rings;4- pipe joints;5- springs;The floating rings of 6- first;7- second is floating
Rotating ring;The rotating rings of 8- first;The rotating rings of 9- second;10- the first floating ring mounting seats;11- the second floating ring mounting seats;12- revolves
Change mounting seat;13- mounting grooves;14- screws;The locking glue of 15-;16- first is driven ring assemblies;17- second is driven ring assemblies;
18- seals;19- glands;20- cooling chambers;21- makes ring by oneself;22- locating rings;23- hold-down rings;24- gripping sleeves;25- suspension ring.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1-3, in the utility model embodiment, a kind of condensation sealing device based on mechanical seal, including pump
Axle 1, axle sleeve 2 is cased with pump shaft 1, and the central raised of axle sleeve 2 is set to mounting groove 13, stationary ring components and rotation are cased with outside axle sleeve 2
Ring assemblies, stationary ring components include the first floating ring 6 and the second floating ring 7, and rotating ring components include the first rotating ring 8 and second
The side of rotating ring 9, the first floating ring 6 and the second floating ring 7 is respectively arranged in the first floating ring mounting seat 10 and second and floated
Ring mounting seat 11, opposite side are fitted and connected the first rotating ring 8 and the second rotating ring 9, and the first rotating ring 8 is installed installed in rotating ring
On seat 12, rotating ring mounting seat 12 is arranged on the bottom of axle sleeve 2, and is provided with screw 14, is arranged on by screw 14 on axle sleeve 2,
Second rotating ring 9 is arranged on the mounting groove 13 at the middle part of axle sleeve 2, the first floating ring 6 and the second floating ring 7 close to entering outlet
The side of mouth is provided with the first transmission ring assemblies 16 and second and is driven ring assemblies 17, the first transmission transmission ring group of ring assemblies 16 and second
Part 17 is using unique floating ring design, and the first transmission ring assemblies 16 are anti-rotation ring assemblies, to the seal face of the first floating ring 6
Deformation interference it is minimum.Cooled down after sealing ring is heated(Temperature change);Pressure loading changes, caused seal face negative changes
It is trickle small;Preferably maintain the stabilization of sealing property;First floating ring 6 is designed to become equilibrium ratio structure:Be resistant to from
Negative pressure 0.08MPa to malleation 3.0MPa dynamic loading Operation Conditions.Remain in that the stabilization of sealing property;First floating ring 6 with
At the cooperation of gland 19, the overlap joint size 1.5mm of setting, float in sealing ring work, compensate nimbly and freely.Meet the exception of burst
During vibrations, sealing surface will not separate;Remain in that the stabilization of sealing property;Spring 5 is installed on second transmission ring assemblies 17, the
One transmission ring assemblies 16 are connected with the lower end of seal 18, and the second transmission ring assemblies 17 connect the upper end of gland 19, seal 18
Screw 14 is provided between gland 19, is integrated by the installation of screw 14, seal 18 and the inside indent cavity of gland 19 are set
For cooling chamber 20, stationary ring components are increased by the transformation of double containment, the temperature of sealing fluid is reduced with cooling means, can be effectively
Reduce and friction is produced between mechanically-sealing apparatus and driving shaft, reduce the abrasion of driving shaft, improve the close of mechanically-sealing apparatus
Sealing property, suspension ring 25 are provided with seal 18, and the inner side of seal 18 is provided with air inlet port and air outlet, is provided with and manages at port
Joint 4, by setting restrictor ring in inlet end, mechanical seal sealing cavity pressure is higher than sealed medium pressure, sealing fluid from
Periphery enters mechanical seal, and the top of gland 19 is installed respectively by two screws 14 makes ring 21 and locating ring 22, locating ring by oneself
22 top connects hold-down ring 23 by screw 14, and clamping is provided between the inner side and pump shaft 1 of locating ring 22 and hold-down ring 23
Set 24, is equipped with locking glue 15 in the screw 14 set in the present apparatus, and between pump shaft 1 and axle sleeve 2, axle sleeve 2 and rotating ring peace
O-ring seals 3 are equipped between seal 18 and gland 19 between dress seat 12, between the second rotating ring 9 and mounting groove 13, this
Device for mechanical sealing sealing cavity pressure is higher than sealed medium pressure, and sealing fluid enters mechanical seal from periphery, sets cooling
Chamber 20 reduces the temperature of sealing fluid, can effectively reduce and friction is produced between mechanically-sealing apparatus and driving shaft, reduces driving shaft
Abrasion, improve the sealing property of mechanically-sealing apparatus.
In summary:Based on the condensation sealing device of mechanical seal, stationary ring components are increased by the transformation of double containment,
The temperature of sealing fluid is reduced with cooling means, can effectively reduce and friction is produced between mechanically-sealing apparatus and driving shaft, is reduced
The abrasion of driving shaft, improve the sealing property of mechanically-sealing apparatus.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.