CN209483935U - A kind of magnetic stirring apparatus combined machine sealing device - Google Patents
A kind of magnetic stirring apparatus combined machine sealing device Download PDFInfo
- Publication number
- CN209483935U CN209483935U CN201920069987.0U CN201920069987U CN209483935U CN 209483935 U CN209483935 U CN 209483935U CN 201920069987 U CN201920069987 U CN 201920069987U CN 209483935 U CN209483935 U CN 209483935U
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- magnetic
- sealing
- ring
- bull
- stirring apparatus
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Abstract
The utility model relates to sealing device more particularly to a kind of magnetic stirring apparatus combined machine sealing devices.Sealing device includes level-one labyrinth spiral sealing, and level-one labyrinth spiral sealing includes gland；Level-one labyrinth spiral sealing includes the swivel nut stator and the externally threaded screw rotor of bull triangle of bull triangle internal screw thread, the externally threaded screw rotor of bull triangle is a part of blender axis, the swivel nut stator of bull triangle internal screw thread is located at the inner space of the inner wall of gland, sealing medium is located in the working space of several " honeycomb " shapes, forms Mazy spiral body.Mazy spiral body pumping pressure is greater than sealed medium pressure, play sealing function, even if there is a small amount of sealed medium to enter cavity on the left of Mazy spiral body, it can also be isolated by magnetic machinery end face seal with the cavity of installation magnetic machinery blender transmission device and realize sealing；When magnetic stirring apparatus stops, mainly worked by magnetic machinery end face seal.
Description
Technical field
The utility model relates to sealing device more particularly to a kind of magnetic stirring apparatus combined machine sealing devices.
Background technique
In thermal power plant, absorption tower side-feeding mixer is more and more wider as the key equipment application of flue gas desulfurization
It is general, and the axle envelope of blender mostly uses tradition machinery to seal, if operating condition is improper compared with severe or maintenance, this structure
Phenomena such as often will appear sealing leak, machine envelope damage.
Utility model content
The purpose of utility model: in order to provide a kind of better magnetic stirring apparatus combined machine sealing device of effect, tool
Body purpose is shown in multiple substantial technological effects of specific implementation part.
In order to reach purpose as above, the utility model adopts the following technical scheme:
A kind of magnetic stirring apparatus combined machine sealing device, which is characterized in that sealing device includes level-one Mazy spiral
Sealing, level-one labyrinth spiral sealing include gland；Level-one labyrinth spiral sealing include bull triangle internal screw thread swivel nut stator and
The externally threaded screw rotor of bull triangle, the externally threaded screw rotor of bull triangle are a part of blender axis, bull triangle
The swivel nut stator of internal screw thread is located at the inner space of the inner wall of gland, and sealing medium is located at the externally threaded screw rotor of bull triangle
In the working space that the flank of tooth of the multiple teeth of swivel nut stator of the flank of tooth and bull triangle internal screw thread of multiple teeth is surrounded, labyrinth is formed
Conveyor screw.
The further technology of the utility model is, also includes second level magnetic mechanical seal, in second level magnetic mechanical seal
Axle sleeve is gap-matched with blender axis, is tightly locked axle sleeve and blender axis by holding screw, be can be avoided use process
Relative motion occurs for bottom bracket axle and blender axis；Static seal between axle sleeve and blender axis is realized using sealing ring one.
The further technology of the utility model is that magnetic stationary ring is securedly mounted on coupling tunnel by screw, uses sealing ring
Three realize the static seal between magnetic stationary ring and coupling tunnel；Magnetic rotating seat is fitted on axle sleeve by interference fit, with sealing
Circle two realizes the static seal between magnetic rotating seat and axle sleeve；Magnetic conduction rotating ring is inlaid in magnetic rotating seat, real with sealing ring four
Static seal between existing magnetic conduction rotating ring and magnetic rotating seat；Magnetic stationary ring keeps end face tight with magnetic conduction rotating ring by magnetic attracting force
The Fluid Sealing inside and outside coupling tunnel is realized in closely connected conjunction.
The further technology of the utility model is that coupling tunnel is fixed by screws on gland.
The further technology of the utility model is that magnetic stationary ring material is neodymium iron boron.
The further technology of the utility model is that magnetic conduction rotating ring is embedded in soft magnetic materials by graphite to be made.
The further technology of the utility model is that the friction pair end face composed by magnetic stationary ring and magnetic conduction rotating ring includes one
The coat of silicon carbide of layer 0.2 ~ 0.5mm thickness, coat of silicon carbide can increase its wear-resisting property and impact resistance；Magnetic rotating seat material
Matter is non-ferromagnetic substance brass；Sealing ring one, sealing ring two, sealing ring three, sealing ring four are perfluoroelastomer sealing ring.
The further technology of the utility model is that the working space is the structure of several " honeycomb " shapes of class.
It using the utility model of technical solution as above, has the advantages that compared with the existing technology: Mazy spiral body
Pumping pressure is greater than sealed medium pressure, plays sealing function, even if there have a small amount of sealed medium to enter Mazy spiral body to be left
It can also be isolated by magnetic machinery end face seal with the cavity of installation magnetic machinery blender transmission device and be realized by side chamber body
Sealing；When magnetic stirring apparatus stops, mainly worked by magnetic machinery end face seal.
Detailed description of the invention
In order to further illustrate the present invention, it is further illustrated with reference to the accompanying drawing:
Fig. 1 is combination sealing mechanical structure two dimension cross-sectional view
Wherein: 1, sealing ring one；2, sealing ring two；3- axle sleeve；4- magnetism rotating seat；5- coupling tunnel；6- gland；7- swivel nut
Stator；8- screw rotor；9- holding screw；10- magnetic stationary ring；11, sealing ring three；12- magnetic conduction rotating ring；13- sealing ring four；
14- blender axis；15. working space.
Specific embodiment
With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.It needs in the description of the present invention,
Illustrate, term " center ", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside", "top", "bottom" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore should not be understood as limiting the present invention.Furthermore unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
This patent provides a variety of concomitant regimens, in place of different expression, belong to modified scheme based on basic scheme or
It is parallel type scheme.Every kind of scheme has the unique features of oneself.
A kind of magnetic stirring apparatus combined machine sealing device, which is characterized in that sealing device includes level-one Mazy spiral
Sealing, level-one labyrinth spiral sealing include gland 6；Level-one labyrinth spiral sealing includes the swivel nut stator 7 of bull triangle internal screw thread
With the externally threaded screw rotor 8 of bull triangle, the externally threaded screw rotor 8 of bull triangle is a part of blender axis, bull
The swivel nut stator 7 of triangle internal screw thread is located at the inner space of the inner wall of gland 6, and sealing medium is located at the externally threaded spiral shell of bull triangle
Several " bees that the flank of tooth of a tooth of swivel nut stator more than 7 of the flank of tooth and bull triangle internal screw thread of a tooth of bar rotor more than 8 is surrounded
In the working space of nest " shape, Mazy spiral body is formed.The technical effect and its realization for the essence that the technical solution at this place is played
Process is as follows: the utility model is mainly used for magnetic stirring apparatus.Magnetic stirring apparatus is chiefly used in that revolving speed is lower, medium viscosity is larger
Operating condition, design labyrinth spiral sealing when mainly consider pumping pressure, in Mazy spiral body member and main geometric and revolving speed phase
With in the case where.When blender works, the sealed medium on 10 right side of gland enters to be formed by swivel nut stator 7 and screw rotor 8
Mazy spiral body.Screw rotor 8 is rotated against its own hand of spiral, and the helicla flute of screw rotor 8 is to liquid force in slot
On the one hand it pushes liquid that frictional force is overcome to circle, on the other hand also liquid is pushed to be advanced axially relative, meanwhile, swivel nut stator
7 screw thread to the liquid in itself slot also have same purpose, screw rotor 8 and swivel nut stator 7 to total axial thrust of liquid just
Form " pumping pressure " of Mazy spiral body.
Preferably as design, triangle helicla flute pumping pressure > trapezoid spiral slot pumping pressure > rectangular spiral groove pumping pressure
Power.Therefore, for low speed magnetic stirring apparatus, the utility model uses helicla flute for the labyrinth spiral sealing of triangle thread,
Middle helix angle°, spiral groove depth h=4 mm.
It also include second level magnetic mechanical seal, the axle sleeve 3 and blender axis 14 in second level magnetic mechanical seal use gap
Axle sleeve 3 and blender axis 14 are tightly locked by holding screw 9, can be avoided use process bottom bracket axle 3 and blender axis 14 by cooperation
Relative motion occurs；Static seal between axle sleeve 3 and blender axis 14 is realized using sealing ring 1.Magnetic stationary ring 10 passes through spiral shell
Nail is securedly mounted on coupling tunnel 5, realizes the static seal between magnetic stationary ring 10 and coupling tunnel 5 with sealing ring 3 11；Magnetism is dynamic
Ring seat 4 is fitted on axle sleeve 3 by interference fit, realizes the static seal between magnetic rotating seat 4 and axle sleeve 3 with sealing ring 22；
Magnetic conduction rotating ring 12 is inlaid in magnetic rotating seat 4, is realized with sealing ring 4 13 quiet between magnetic conduction rotating ring 12 and magnetic rotating seat 4
Sealing；Magnetic stationary ring 10 keeps end face to fit closely with magnetic conduction rotating ring 12 by magnetic attracting force, realizes the stream inside and outside coupling tunnel 5
Body sealing.
The technical effect and its realization process for the essence that the technical solution at this place is played are as follows: the pumping of Mazy spiral body
Pressure is greater than sealed medium pressure, sealing function is played, even if there is a small amount of sealed medium to enter Mazy spiral body left side cavity
It can also be isolated by magnetic machinery end face seal with the cavity of installation magnetic machinery blender transmission device and be realized close by body
Envelope；When magnetic stirring apparatus stops, mainly worked by magnetic machinery end face seal.
Coupling tunnel 5 is fixed by screws on gland 6.10 material of magnetic stationary ring is neodymium iron boron.Magnetic conduction rotating ring 12 is by graphite
It is embedded in soft magnetic materials and is made.The friction pair end face composed by magnetic stationary ring 10 and magnetic conduction rotating ring 12 includes one layer 0.2 ~
The coat of silicon carbide of 0.5mm thickness, coat of silicon carbide can increase its wear-resisting property and impact resistance；Magnetic 4 material of rotating seat is
Non-ferromagnetic substance brass；Sealing ring 1, sealing ring 22, sealing ring 3 11, sealing ring 4 13 are perfluoroelastomer sealing ring.This
The second level magnetic mechanical seal of utility model design has the advantages that dismounting, easy to maintain relative to magnetic fluid sealing component.
In a creative way, above each effect is individually present, moreover it is possible to the combination of the above results is completed with a nested structure.
It is clear that the technical effect that the above structure is realized is realized, if the additional technical solution is not taken into account, this patent title is also
It can be a kind of novel sealing structure.Part details is not shown in the figure.
It should be noted that multiple schemes that this patent provides include the basic scheme of itself, independently of each other, not mutually
It restricts, but it can also be combined with each other in the absence of conflict, reach multiple effects and realize jointly.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of this field
Personnel should be recognized that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this hairs
Bright principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variations
It is both fallen in claimed range with improving.
Claims (8)
1. a kind of magnetic stirring apparatus combined machine sealing device, which is characterized in that sealing device includes that level-one Mazy spiral is close
Envelope, level-one labyrinth spiral sealing include gland (6)；Level-one labyrinth spiral sealing includes the swivel nut stator of bull triangle internal screw thread
(7) and the externally threaded screw rotor of bull triangle (8), the externally threaded screw rotor of bull triangle (8) are one of blender axis
Point, the swivel nut stator (7) of bull triangle internal screw thread is located at the inner space of the inner wall of gland (6), and sealing medium is located at bull three
The flank of tooth institute of swivel nut stator (7) multiple teeth of the flank of tooth and bull triangle internal screw thread of angle externally threaded screw rotor (8) multiple teeth
In the working space surrounded, Mazy spiral body is formed.
2. a kind of magnetic stirring apparatus combined machine sealing device as described in claim 1, which is characterized in that also include second level
Magnetic mechanical seal, the axle sleeve (3) in second level magnetic mechanical seal are gap-matched with blender axis (14), pass through clamp screw
It follows closely (9) tightly to lock axle sleeve (3) and blender axis (14), can be avoided use process bottom bracket axle (3) and blender axis (14) occurs
Relative motion；Static seal between axle sleeve (3) and blender axis (14) is realized using sealing ring one (1).
3. a kind of magnetic stirring apparatus combined machine sealing device as claimed in claim 2, which is characterized in that magnetic stationary ring
(10) be securedly mounted on coupling tunnel (5) by screw, with sealing ring three (11) realize magnetic stationary ring (10) and coupling tunnel (5) it
Between static seal；Magnetic rotating seat (4) is fitted on axle sleeve (3) by interference fit, realizes magnetic rotating ring with sealing ring two (2)
Static seal between seat (4) and axle sleeve (3)；Magnetic conduction rotating ring (12) is inlaid in magnetic rotating seat (4), real with sealing ring four (13)
Static seal between existing magnetic conduction rotating ring (12) and magnetic rotating seat (4)；Magnetic stationary ring (10) and magnetic conduction rotating ring (12) pass through magnetism
Attraction keeps end face to fit closely, and realizes the Fluid Sealing inside and outside coupling tunnel (5).
4. a kind of magnetic stirring apparatus combined machine sealing device as claimed in claim 3, which is characterized in that coupling tunnel (5)
It is fixed by screws on gland (6).
5. a kind of magnetic stirring apparatus combined machine sealing device as claimed in claim 3, which is characterized in that magnetic stationary ring
(10) material is neodymium iron boron.
6. a kind of magnetic stirring apparatus combined machine sealing device as described in claim 3 or 5, which is characterized in that magnetic conduction
Rotating ring (12) is embedded in soft magnetic materials by graphite to be made.
7. a kind of magnetic stirring apparatus combined machine sealing device as claimed in claim 6, which is characterized in that in magnetic stationary ring
(10) coat of silicon carbide with friction pair end face composed by magnetic conduction rotating ring (12) comprising one layer of 0.2 ~ 0.5mm thickness, silicon carbide apply
Layer can increase its wear-resisting property and impact resistance；Magnetic rotating seat (4) material is non-ferromagnetic substance brass；Sealing ring one (1),
Sealing ring two (2), sealing ring three (11), sealing ring four (13) are perfluoroelastomer sealing ring.
8. a kind of magnetic stirring apparatus combined machine sealing device as claimed in claim 6, which is characterized in that the work
Space is the structure of several " honeycomb " shapes of class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069987.0U CN209483935U (en) | 2019-01-16 | 2019-01-16 | A kind of magnetic stirring apparatus combined machine sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069987.0U CN209483935U (en) | 2019-01-16 | 2019-01-16 | A kind of magnetic stirring apparatus combined machine sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209483935U true CN209483935U (en) | 2019-10-11 |
Family
ID=68131247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920069987.0U Expired - Fee Related CN209483935U (en) | 2019-01-16 | 2019-01-16 | A kind of magnetic stirring apparatus combined machine sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762214A (en) * | 2019-11-18 | 2020-02-07 | 大连双龙泵业制造有限公司 | Mechanical seal pumping circulating device of stirrer |
| CN112780562A (en) * | 2021-01-06 | 2021-05-11 | 北京卫星制造厂有限公司 | Circulation pump body and positive displacement reaction gas circulation pump device for fuel cell |
-
2019
- 2019-01-16 CN CN201920069987.0U patent/CN209483935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762214A (en) * | 2019-11-18 | 2020-02-07 | 大连双龙泵业制造有限公司 | Mechanical seal pumping circulating device of stirrer |
| CN112780562A (en) * | 2021-01-06 | 2021-05-11 | 北京卫星制造厂有限公司 | Circulation pump body and positive displacement reaction gas circulation pump device for fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191011 Termination date: 20210116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |