CN206530529U - Oil sealing - Google Patents
Oil sealing Download PDFInfo
- Publication number
- CN206530529U CN206530529U CN201720157176.7U CN201720157176U CN206530529U CN 206530529 U CN206530529 U CN 206530529U CN 201720157176 U CN201720157176 U CN 201720157176U CN 206530529 U CN206530529 U CN 206530529U
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- CN
- China
- Prior art keywords
- oil
- oil return
- return chamber
- oil sealing
- recovery tank
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a kind of oil sealing, body including annular, be arranged in the body and body inner ring described in insertion multiple oil return chambers, the oil return chamber include one through the body first surface oil-recovery tank, at least two be sequentially located at oil return chamber of the oil-recovery tank away from the first surface side；The first surface of the body is provided with the spill port for being respectively communicated to the oil return chamber.The utility model is applied to nuclear power station secondary loop condensate pump thrust bearing room seal oil, and the important pump group of reduction nuclear power station secondary loop damages risk, ensures the stable operation of nuclear power station secondary loop, so as to improve the security and economy of nuclear power station operation.
Description
Technical field
The utility model is related to a kind of sealing structure, more particularly to a kind of oil sealing.
Background technology
In nuclear power station, condensate pump (such as 6.6KV) can have different degrees of pump bearing room during debugging and get rid of
Oily defect, these defects can cause condensate pump to be in the risk that pump bearing room oil starvation burns, and cause the fortune of nuclear power station secondary loop
Row is unstable.
Therefore, it is necessary to design a kind of new oil sealing, the maintenance frequency of pump group is reduced, the steady of nuclear power station secondary loop is ensured
Fixed operation.
Utility model content
The technical problems to be solved in the utility model is that there is provided a kind of improved oil sealing.
The utility model solves the technical scheme that its technical problem used：A kind of oil sealing is provided, includes the sheet of annular
Body portion, be arranged in the body and insertion described in body inner ring multiple oil return chambers, the oil return chamber includes
One through the body first surface oil-recovery tank, at least two be sequentially located at the oil-recovery tank away from the first surface
The oil return chamber of side；The first surface of the body is provided with the spill port for being respectively communicated to the oil return chamber.
Preferably, the body includes two hemizonids, and two hemizonid relative engagements form overall described
Body.
Preferably, the oil-recovery tank includes the annular groove being located at respectively on two hemizonids；The oil return chamber includes
It is located at the ring cavity on two hemizonids respectively.
Preferably, the body is also included the fastening assembly of the two hemizonid locking.
Preferably, the hemizonid is provided with the connecting portion worn for the fastening assembly.
Preferably, the diameter of the oil return chamber is equal to or more than the diameter of the oil-recovery tank.
Preferably, the oil sealing also includes the multiple tracks copper tool mouthful being arranged on the body inner circumferential side, described in multiple tracks
Copper tool mouth is distributed between the adjacent oil return chamber, between the oil-recovery tank and oil return chamber, the oil return chamber
Between the second surface of the body.
Preferably, the oil sealing also includes the positioning step that protrusion is arranged on the body periphery.
Preferably, the positioning step is located at the medium position of the body periphery.
The beneficial effects of the utility model：Applied to nuclear power station secondary loop condensate pump thrust bearing room seal oil,
Reduce the important pump group of nuclear power station secondary loop and damage risk, ensure the stable operation of nuclear power station secondary loop, so as to improve nuclear power station fortune
Capable security and economy.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structural representation of the oil sealing of the embodiment of the utility model one；
Fig. 2 is cross-sectional view of the oil sealing shown in Fig. 1 along line A-A.
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed
Illustrate embodiment of the present utility model.
As shown in Figure 1, 2, the oil sealing of the embodiment of the utility model one, available on condensate pump bearing chamber, has
Body, for nuclear power station secondary loop condensate pump thrust bearing room seal oil.The oil sealing includes the body 10 of annular, set
Put multiple oil return chambers in body 10；The inner ring of multiple oil return chamber difference insertion bodies 10, so that multiple oil returns
Chamber is connected with the inner space of body 10.
Body 10 includes relative first surface and second surface, and multiple oil return chambers are in first surface and second surface
Between be axially distributed.
Wherein, oil return chamber includes oil-recovery tank 21, an at least two oil return chambers 22；Oil-recovery tank 21 is close to the first table
Face, through the first surface of body 10；At least two oil return chambers 22 are sequentially located at one of oil-recovery tank 21 away from first surface
Side.
Correspondence oil return chamber 22, the first surface of body 10 is provided with the spill port for being respectively communicated to oil return chamber 22
23.Spill port 23 passes through for oil return.
The diameter of oil return chamber 22 is equal to or more than the diameter of oil-recovery tank 21.Oil return chamber 22 is dimensionally larger than oil-recovery tank
21, be conducive to equalizer bearing indoor and outdoor atmospheric pressure.
Disassembling, assembling and replacing for convenience of oil sealing etc., body 10 includes two hemizonids 11, two relative engagements of hemizonid 11
Form overall body 10.The interface of two hemizonids 11 is face that is smooth or being engaged, so that both are tightly engaged into
Together, it is to avoid gap etc. occur can oil leak structure.
Two hemizonids 11 of correspondence, oil-recovery tank 21 includes two annular grooves, respectively on two hemizonids 11；When two and half
When ring body 11 is docked, two annular grooves also dock the oil-recovery tank 21 to form entirety.Oil return chamber 22 includes two ring cavities, is located at respectively
On two hemizonids 11；When two hemizonids 11 are docked, two ring cavities also dock the oil return chamber 22 to form entirety.
Body 10 also includes fastening assembly 12, and two hemizonids 11 are locked.Fastening assembly 12 is optional but is not limited to phase
The screw bolt and nut of cooperation.
For convenience of the dismounting of fastening assembly, hemizonid 11 is provided with the connecting portion 13 worn for fastening assembly 12.Two and half
When ring body 11 is docked, connecting portion 13 thereon is also docking together respectively, and the bolt of fastening assembly 12 is located in two connecting portions
In 13, nut is screwed tight on bolt end, and two connecting portions 13 are locked together.
Further, as shown in Figure 1, 2, oil sealing also includes the positioning step 30 that protrusion is arranged on the periphery of body 10.
Alternatively, positioning step 30 is located at the medium position of the periphery of body 10, and body 10 is divided into opposite end
Portion.In bearing chamber, positioning step 30 is supported on bearing chamber peripheral end face, and one end and the bearing chamber inner circumferential of body 10 coordinate
And inside bearing chamber, the other end is protruded on bearing chamber.
Further, as shown in Fig. 2 oil sealing also includes the multiple tracks copper tool mouthful 40 being arranged on the inner circumferential side of body 10,
Multiple tracks copper tool mouthful 40 is distributed between adjacent oil return chamber 22, between oil-recovery tank 21 and oil return chamber 22, oil return chamber
Between 22 and the second surface of body 10.The protrusion of copper tool mouthful 40, as sealing structure, is played on the inner circumferential side of body 10
Sealing function.
In the present embodiment, oil sealing includes two road copper tools mouthful 40 of oil return chamber 22 and three, is that the road copper tool mouthful of two-chamber three is close
Envelope, three-layer sealed structure can greatly reduce the leakage of lubricating oil, and (actual effect is to have completely eliminated bearing chamber to get rid of
Oil), copper edge seal may insure thrust collar not by seal wears, and every layer of oil return chamber 22 designs a large scale spill port
23, it is ensured that the lubricating oil under sealing ring stops can smoothly flow back, while big oil return chamber has been effectively ensured in bearing chamber
Outer atmospheric equilibrium.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (9)
1. a kind of oil sealing, it is characterised in that including annular body, be arranged in the body and body described in insertion
Multiple oil return chambers of portion's inner ring, the oil return chamber includes an oil-recovery tank, at least through the body first surface
Two are sequentially located at oil return chamber of the oil-recovery tank away from the first surface side；Set on the first surface of the body
There is the spill port for being respectively communicated to the oil return chamber.
2. oil sealing according to claim 1, it is characterised in that the body includes two hemizonids, two described half
Ring body relative engagement forms the overall body.
3. oil sealing according to claim 2, it is characterised in that the oil-recovery tank includes being located at two hemizonids respectively
On annular groove；The oil return chamber includes the ring cavity being located at respectively on two hemizonids.
4. oil sealing according to claim 2, it is characterised in that the body also includes locking two hemizonids
Fastening assembly.
5. oil sealing according to claim 4, it is characterised in that the hemizonid is provided with what is worn for the fastening assembly
Connecting portion.
6. oil sealing according to claim 1, it is characterised in that the diameter of the oil return chamber is equal to or more than the oil return
The diameter of groove.
7. the oil sealing according to claim any one of 1-6, it is characterised in that the oil sealing also includes being arranged on the body
Multiple tracks copper tool mouthful on portion inner circumferential side, copper tool mouth described in multiple tracks is distributed between the adjacent oil return chamber, described
Between oil-recovery tank and oil return chamber, between the second surface of the oil return chamber and the body.
8. the oil sealing according to claim any one of 1-6, it is characterised in that the oil sealing is also arranged on described including protrusion
The positioning step of body periphery.
9. oil sealing according to claim 8, it is characterised in that the positioning step is located at the middle part of the body periphery
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157176.7U CN206530529U (en) | 2017-02-21 | 2017-02-21 | Oil sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157176.7U CN206530529U (en) | 2017-02-21 | 2017-02-21 | Oil sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530529U true CN206530529U (en) | 2017-09-29 |
Family
ID=59916124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720157176.7U Active CN206530529U (en) | 2017-02-21 | 2017-02-21 | Oil sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457893A (en) * | 2017-12-21 | 2018-08-28 | 福建福清核电有限公司 | One kind giving feed pump oil sealing |
| CN109973417A (en) * | 2017-12-27 | 2019-07-05 | 宫振东 | A kind of novel bearing seal protector |
-
2017
- 2017-02-21 CN CN201720157176.7U patent/CN206530529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457893A (en) * | 2017-12-21 | 2018-08-28 | 福建福清核电有限公司 | One kind giving feed pump oil sealing |
| CN109973417A (en) * | 2017-12-27 | 2019-07-05 | 宫振东 | A kind of novel bearing seal protector |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |