CN209164588U - Centrifugal pump oil mist sealing structure - Google Patents
Centrifugal pump oil mist sealing structure Download PDFInfo
- Publication number
- CN209164588U CN209164588U CN201822072964.3U CN201822072964U CN209164588U CN 209164588 U CN209164588 U CN 209164588U CN 201822072964 U CN201822072964 U CN 201822072964U CN 209164588 U CN209164588 U CN 209164588U
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- centrifugal pump
- sealing structure
- oil
- oil mist
- utility
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is to include axial set about a kind of centrifugal pump oil mist sealing structure, including the sealing structure, and the axial set outer wall is screw thread, several equally distributed annular grooves are equipped in axial set, and the top of the sealing structure is limit shoulder.The centrifugal pump oil mist sealing structure of the utility model, structure is simple, is easily installed, good to the sealing effect of centrifugal pump, solves the problems, such as the oil gas leakage pollution air of centrifugal pump, the bearing service life for improving centrifugal pump is big, and structure is simple；Its intensity is high, good toughness, it is less likely to be damaged, lubricating oil forms oil film on the annular groove of the oil mist sealing structure, oil film plays sealing function to centrifugal pump main shaft, enable centrifugal pump even running, the oil film on annular groove prevents oil gas from leaking outside, while avoiding the bearing housing pollution lubricating oil that the dirty air steam in atmosphere enters centrifugal pump.
Description
Technical field
The utility model relates to a kind of oil mist sealing equipment, more particularly to a kind of centrifugal pump oil mist sealing structure.
Background technique
Centrifugal pump bearing cabinet structures all at present, both sides sealing structure are that interdigitated electrode structure seals add-back oilhole, outside
Add dust pan, material generally selects tin bronze, cast iron.It is 0.50mm in the radial clearance design of this sealing, but actually makes
With this size is much larger than in the process, lubricant mist can be leaked out, even if the field practice of many years proves this sealing structure
Slight mist of oil is still suffered from the case where the very little of gap to reveal, and in actual moving process, is pumped in the case where long-term vibration
Work will cause the loosening of dust pan, cause to generate friction between pump shaft and dust pan, this friction can also cause to overheat, make dust-proof
Disk Internal Hole Deformation, leads to oil leakage.Meanwhile around the gap between seal disc and pump shaft is centrifuged under the action of negative pressure again and makes
Various atmosphere in environment include humid air, and sand and dust, acid air etc. is entered in the pump housing by the gap sealed, to profit in pump
Lubricating oil and bearing pollute corrosion, these all seriously affect the service life of pump, and the long-term leakage of mist of oil also can to environmental protection
It poses a big pressure.
Utility model content
The main purpose of the utility model is that providing a kind of centrifugal pump oil mist sealing structure, technology to be solved
Problem, which is used on centrifugal pump, can make pump seal effect good, thus more suitable for practical.
It the purpose of this utility model and solves its technical problem and adopts the following technical solutions to realize.It is practical according to this
A kind of centrifugal pump oil mist sealing structure of novel proposition, the sealing structure include axial set, and the axial set outer wall is screw thread,
Several equally distributed annular grooves are equipped in axial set, the top of the sealing structure is limit shoulder.
It the purpose of this utility model and solves its technical problem also following technical measures can be used to further realize.
Preferably, centrifugal pump oil mist sealing structure above-mentioned, wherein the material of the oil mist sealing structure is polytetrafluoro
Ethylene.
Preferably, centrifugal pump oil mist sealing structure above-mentioned, wherein being equipped at least four uniform points in the axial set
The annular groove of cloth.
By above-mentioned technical proposal, the centrifugal pump of the utility model is at least had the advantage that with oil mist sealing structure
The centrifugal pump oil mist sealing structure of the utility model, structure is simple, is easily installed, and imitates to the sealing of centrifugal pump
Fruit is good, solves the problems, such as the oil gas leakage pollution air of centrifugal pump, the bearing service life for improving centrifugal pump is big, structure
Simply；Its intensity is high, good toughness, it is not easy to damage.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the structure chart of the centrifugal pump oil mist sealing structure of the utility model.
Fig. 2 is the cross-sectional view of the centrifugal pump oil mist sealing structure of the utility model.
Fig. 3 is that installation of the centrifugal pump oil mist sealing structure on centrifugal pump in one embodiment of the utility model is shown
It is intended to.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes centrifugal pump its specific implementation of oil mist sealing structure
Mode, feature, structure and its effect, detailed description is as follows.In the following description, different " embodiment " or " embodiment " refers to
Be not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable shapes
Formula combination.
Following embodiment material therefor, method and instrument, without specified otherwise, be this field conventional material, method and
Instrument, those of ordinary skill in the art can be obtained by commercial channel.
The utility model in following description, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper",
The indicating positions such as "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outside" and " endways " or positional relationship are base
In orientation or positional relationship shown in the drawings, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or
Imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, it is thus impossible to be interpreted as
Limitations of the present invention.
The utility model in following description, it should be noted that unless otherwise expressly provided with limit, 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 and be directly connected to, be also possible to be indirectly connected with by intermediate medium, can be the connection of two components interiors.It is right
For those skilled in the art, can be concrete condition understand submit a written statement to a higher authority term in the present invention specifically contain
Justice.
In addition, the utility model in following description, unless otherwise indicated, " multiple ", " multiple groups ", the meaning of " more "
It is two or more.
The utility model is described in further details with reference to the accompanying drawing, but following detailed description is not intended as to originally practical
Novel restriction.
One embodiment of the utility model as shown in Figs. 1-2 proposes a kind of centrifugal pump oil mist sealing structure, the sealing
Structure includes axial set 1, and axial 1 outer wall that covers is screw thread 2, is equipped with several equally distributed annular grooves 3 in axial set 1, this is close
The top of seal structure is limit shoulder 4；Sealing structure is connect by the axial screw thread for covering outer wall with centrifugal pump outer end cap, axial to cover
Interior annular groove is contacted with the main shaft of centrifugal pump.
Preferably, the material of the oil mist sealing structure in the utility model is polytetrafluoroethylene (PTFE).
Preferably, the axial set in the utility model is interior equipped at least four equally distributed annular grooves.
Oil mist sealing structure in the utility model and contactless small―gap suture (0.1mm) cooperation between the main shaft of centrifugal pump,
It ensure that its service life service life；
Lubricating oil forms oil film on the annular groove of the oil mist sealing structure, and oil film plays sealing to centrifugal pump main shaft and makees
With enabling centrifugal pump even running, the oil film on annular groove prevents oil gas from leaking outside, while avoiding the dirty air water in atmosphere
Vapour enters the bearing housing pollution lubricating oil of centrifugal pump, improves centrifugal pump bearing service life.
Embodiment 1
Installation of the centrifugal pump oil mist sealing structure of the utility model on centrifugal pump is as shown in figure 3, centrifugal pump in Fig. 3
Including rod bearing 5, thrust bearing 6, by window 7, main shaft 8, splash ring 9, wherein centrifugal pump is mounted on master with oil mist sealing structure a
On axis 8.
Centrifugal pump in the utility model can be applied to various centrifugal pumps with oil mist sealing structure, place centrifugal pump oil gas
Leakage is dirty.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention,
It is still within the scope of the technical solutions of the present invention.
Claims (3)
1. a kind of centrifugal pump oil mist sealing structure, it is characterised in that: the sealing structure includes axial set, the axial set outer wall
For screw thread, axial set is interior to be equipped with several equally distributed annular grooves, and the top of the sealing structure is limit shoulder.
2. centrifugal pump oil mist sealing structure according to claim 1, which is characterized in that the material of the oil mist sealing structure
Material is polytetrafluoroethylene (PTFE).
3. centrifugal pump oil mist sealing structure according to claim 1, which is characterized in that be equipped at least in the axial set
Four equally distributed annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822072964.3U CN209164588U (en) | 2018-12-11 | 2018-12-11 | Centrifugal pump oil mist sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822072964.3U CN209164588U (en) | 2018-12-11 | 2018-12-11 | Centrifugal pump oil mist sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164588U true CN209164588U (en) | 2019-07-26 |
Family
ID=67343190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822072964.3U Active CN209164588U (en) | 2018-12-11 | 2018-12-11 | Centrifugal pump oil mist sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759567A (en) * | 2024-02-22 | 2024-03-26 | 江苏武新泵业有限公司 | centrifugal pump sealing structure |
-
2018
- 2018-12-11 CN CN201822072964.3U patent/CN209164588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759567A (en) * | 2024-02-22 | 2024-03-26 | 江苏武新泵业有限公司 | centrifugal pump sealing structure |
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