CN203201817U - Residual heat removal pump facilitating shaft seal overhaul - Google Patents
Residual heat removal pump facilitating shaft seal overhaul Download PDFInfo
- Publication number
- CN203201817U CN203201817U CN 201320087821 CN201320087821U CN203201817U CN 203201817 U CN203201817 U CN 203201817U CN 201320087821 CN201320087821 CN 201320087821 CN 201320087821 U CN201320087821 U CN 201320087821U CN 203201817 U CN203201817 U CN 203201817U
- Authority
- CN
- China
- Prior art keywords
- length
- bearing part
- heat removal
- residual heat
- mechanical seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A residual heat removal pump facilitating shaft seal overhaul comprises a mechanical seal part, a bearing part and a coupling part. A pump cover is fixedly connected with a motor through a linkage frame, a pump shaft is sequentially provided with the mechanical seal part, the bearing part and the coupling part, the length L1 of the coupling part is larger than the length L2 of the bearing part, and the length L2 of the bearing part is larger than the length L3 of the mechanical seal part. By means of the design of an open window type motor support, the length of the cartridge mechanical seal part and the length of the bearing part are smaller than the length of the coupling part. Therefore, maintenance of a shaft seal in the situation that the motor is not detached is available, and the residual heat removal pump is very convenient.
Description
Technical field
The utility model relates to pump, relates in particular to a kind of residual heat removal pump that the axle envelope is opened and inspect of being convenient to.
Technical background
Residual heat removal pump is the important component part of nuclear power plant reactor residual heat removal system, its design service life usually is 50 years, cavitation phenomenons can appear in residual heat removal pump under the extreme operating condition again, and its sealed member also can often damage, so must in time change black box and other related components, yet current residual heat removal pump exists the dismounting difficulty, the drawback of maintenance trouble.
Summary of the invention
The purpose of this utility model is to provide a kind of axle of being convenient to easy to maintenance, high life to seal the residual heat removal pump of opening and inspecting.
The utility model is to realize like this, a kind of axle of being convenient to seals the residual heat removal pump of opening and inspecting, comprise mechanical seal parts, bearing part, draft gage parts, pump cover is fixedly connected with motor by link span, be disposed with mechanical seal parts, bearing part and draft gage parts on the pump shaft, it is characterized in that: the length L of described coupling parts
1Length L greater than bearing part
2, the length L of described bearing part
2Length L greater than the mechanical seal parts
3
The utility model adopts open window formula motor susceptor design, and the length of integrated mechanical sealing parts and bearing part part is all less than the length of coupling parts, thereby allows under the situation of not dismantling motor the axle envelope to be safeguarded, and is very convenient.
Description of drawings
Figure 1 shows that structural representation of the present utility model.
Among the figure 1, the mechanical seal parts, 2, bearing part, 3, the coupling parts, 4, link span, 5, motor.
Embodiment:
Below in conjunction with accompanying drawing the utility model patent is described further:
A kind of axle of being convenient to seals the residual heat removal pump of opening and inspecting, comprise mechanical seal parts 1, bearing part 2, draft gage parts 3, pump cover is fixedly connected with motor 5 by link span 4, be disposed with mechanical seal parts 1, bearing part 2 and draft gage parts 3 on the pump shaft, it is characterized in that: the length L of described coupling parts 3
1Length L greater than bearing part 2
2, the length L of described bearing part 2
2Length L greater than mechanical seal parts 3
3During concrete enforcement, when mechanical seal parts 1 need to take out maintenance, at first pull down the bolt of coupling parts 3, its window of offering from link span 4 is taken out, because the length L of coupling parts 3
1Length L greater than bearing part 2
2, the length L of described bearing 2
2Greater than the length of mechanical seal parts 3, i.e. L
1＞L
2＞L
3Thereby bearing part 2, mechanical seal parts 3 just can take out successively smoothly from the window on the link span 4.
Claims (1)
1. be convenient to the residual heat removal pump that the axle envelope is opened and inspect for one kind, comprise mechanical seal parts (1), bearing part (2), draft gage parts (3), pump cover is fixedly connected with motor (5) by link span (4), be disposed with mechanical seal parts (1), bearing part (2) and draft gage parts (3) on the pump shaft, it is characterized in that: the length L of described coupling parts (3)
1Length L greater than bearing part (2)
2, the length L of described bearing part (2)
2Length L greater than mechanical seal parts (3)
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087821 CN203201817U (en) | 2013-02-27 | 2013-02-27 | Residual heat removal pump facilitating shaft seal overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087821 CN203201817U (en) | 2013-02-27 | 2013-02-27 | Residual heat removal pump facilitating shaft seal overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201817U true CN203201817U (en) | 2013-09-18 |
Family
ID=49145929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087821 Expired - Lifetime CN203201817U (en) | 2013-02-27 | 2013-02-27 | Residual heat removal pump facilitating shaft seal overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564707A (en) * | 2015-01-30 | 2015-04-29 | 朱海川 | Modular efficient maintenance-free bidirectional detachable universal centrifugal pump |
-
2013
- 2013-02-27 CN CN 201320087821 patent/CN203201817U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564707A (en) * | 2015-01-30 | 2015-04-29 | 朱海川 | Modular efficient maintenance-free bidirectional detachable universal centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |