CN205478344U - Avionics cooling water pump for nuclear power station - Google Patents
Avionics cooling water pump for nuclear power station Download PDFInfo
- Publication number
- CN205478344U CN205478344U CN201620043865.0U CN201620043865U CN205478344U CN 205478344 U CN205478344 U CN 205478344U CN 201620043865 U CN201620043865 U CN 201620043865U CN 205478344 U CN205478344 U CN 205478344U
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- pump
- bearing body
- pump shaft
- impeller
- power station
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Abstract
The utility model relates to a pump for the nuclear power station, specifically speaking are avionics cooling water pump for nuclear power station, including the pump body, pump cover, impeller, bearing body and pump shaft, wherein pump cover and pump body sealing connection together, form a complete space that overflows, the pump shaft is inserted and is established between the pump body and pump cover, and the both ends of pump shaft are supported through the non - inboard bearing body of installing the inboard bearing body on the pump body and install on the pump body respectively, and the pump shaft is located the one end of driving side and is worn out, is linked to each other with the driving machine by the inboard bearing body, be equipped with import and export on the pump body respectively, the utility model has the characteristics of reliability height, long service life, general degree height, operation are stably, especially, efficient more outstanding.
Description
Technical field
This utility model belongs to component cooling pump technical field, the used in nuclear power station component cooling pump cooled particularly to a kind of equipment to using in nuclear power station.
Background technology
Component cooling pump is one of important equipment of nuclear power station, and all Nuclear island equipment are all cooled down by component cooling water system, are the important component parts of component cooling water system, is one of the key equipment of nuclear power station.The major function of component cooling pump is each stage run in power plant, after shutdown and accident, those such as reactor cooling system, may be changed appearance system, residual heat removal system containing the system of radioactive water, and the heat of generation is discharged to service water system.Therefore it plays the effect of a barrier between radioactivity system and external environment.
Summary of the invention
The purpose of this utility model is to provide the used in nuclear power station component cooling pump that a kind of equipment to using in nuclear power station cools.
The purpose of this utility model is realized in, it includes: the pump housing, pump cover, impeller, pump shaft, it is characterized in that: pump shaft is inserted in impeller, the two ends of pump shaft are arranged on the pump housing, impeller is provided above the pump cover being connected with the pump housing, the both sides of the pump housing are respectively arranged with side bearing body support frame, it is fixedly arranged above bearing body at side bearing body support frame, described bearing body is respectively drive end bearing body and non-drive side bearing body, it is provided with disc in drive end bearing body, and linked together with pump shaft by cylinder roller bearing, a disc it is also equipped with in non-drive side bearing body, this disc is arranged on pump shaft end, non-drive side bearing body is connected by thrust bearing with pump shaft；Being provided with impeller in the middle part of pump shaft, impeller is provided above pump cover.
Before and after's sealing ring it is equipped with on impeller.
The packaging mechanical seal that axle envelope is interior circulation between described pump shaft and the pump housing, pump cover.
Set import on the described pump housing, outlet all below pump spindle center line horizontally, parallel with pump spindle center line, import, the dead in line of outlet.
The drive end of described pump shaft is connected with inboard bearing body by roller bearing, and the anti-drive end of pump shaft is connected with non-drive side bearing body by thrust bearing；The disc being enclosed within pump shaft it is provided with, it is achieved self-lubricating outside described roller bearing；The disc being enclosed within pump shaft it is provided with, it is achieved self-lubricating outside described thrust bearing.
Described pump shaft is positioned at one end of non-drive side and is contained in non-drive side bearing body.
The utility model has the advantages that: component cooling pump the most of the present utility model has the feature of net positive suction head efficient, low, there is the impeller hydraulic model of slow drop characteristic, reached the system basic serviceability requirement to pump.
2. this utility model Bearing support disc realizes self-lubricating, it is not necessary to external lubricating oil.
3. this utility model makes pump self bear axial thrust by thrust ball bearing, strengthens the stability of integral pump group.
4. this utility model uses the packaging mechanical seal of self-circulation type so that dismounting mechanical seal is more convenient, simplifies linkage editor, reduces installation time.
Import the most of the present utility model, outlet for all below pump spindle center line horizontally, and be in same level, it is possible to meet the particular/special requirement of installation.
Pump the most of the present utility model is horizontal middle open type, and the parting plane of the pump housing and pump cover is on pump spindle center line, horizontally.Open the whole parts in pump cover can check pump, it is not necessary to the dismounting suction tube of pump, discharge pipe and prime mover, therefore overhaul very convenient.
Impeller the most of the present utility model is centrifugal double-entry impeller, and impeller is provided with before and after's sealing ring, can improve the efficiency of pump with balancing axial thrust, improve impeller service life.
8. this utility model master-plan advanced person, compact conformation, have higher security reliability.
Accompanying drawing explanation
Fig. 1 is internal structure simplified schematic diagram of the present utility model；
Fig. 2 is side view of the present utility model.
This utility model is described in further detail by example below in conjunction with accompanying drawing; but the following example example therein that is only this utility model; not representing the right protection scope that this utility model is limited, rights protection scope of the present utility model is as the criterion with claims.
Detailed description of the invention
Example 1
See Fig. 1 ~ 2, pump shaft is inserted in impeller, the two ends of pump shaft are arranged on the pump housing, impeller is provided above the pump cover being connected with the pump housing, the both sides of the pump housing are respectively arranged with side bearing body support frame, it is fixedly arranged above bearing body at side bearing body support frame, described bearing body is respectively drive end bearing body and non-drive side bearing body, it is provided with disc in drive end bearing body, and linked together with pump shaft by cylinder roller bearing, a disc it is also equipped with in non-drive side bearing body, this disc is arranged on pump shaft end, non-drive side bearing body is connected by thrust bearing with pump shaft；Being provided with impeller in the middle part of pump shaft, impeller is provided above pump cover.
Before and after's sealing ring it is equipped with on impeller.
The packaging mechanical seal that axle envelope is interior circulation between described pump shaft and the pump housing, pump cover.
Set import on the described pump housing, outlet all below pump spindle center line horizontally, parallel with pump spindle center line, import, the dead in line of outlet.
The drive end of described pump shaft is connected with inboard bearing body by roller bearing, and the anti-drive end of pump shaft is connected with non-drive side bearing body by thrust bearing；The disc being enclosed within pump shaft it is provided with, it is achieved self-lubricating outside described roller bearing；The disc being enclosed within pump shaft it is provided with, it is achieved self-lubricating outside described thrust bearing.
Described pump shaft is positioned at one end of non-drive side and is contained in non-drive side bearing body.
Wherein pump cover 4 and sealing gasket 15 are tight on the pump housing 7 by bolt 18, nut 19 and 20, packing ring, form the semiclosed of an inner hollow and cross fluid space, inboard bearing body 2 is by bolt 21, nut 22 and 23, packing ring are tight on inboard bearing body support frame, non-drive side bearing body 12 is tight on non-drive side bearing body support 10 by bolt 21, nut 22 and 23, packing ring.
Pump shaft 9 is inserted by inboard bearing body 2, sequentially pass through the pump housing 7, pump cover 4 and non-drive side bearing body 12, pump shaft 9 is positioned at one end of driving side and is passed by inboard bearing body 2, being connected with the machine of driving by the diaphragm coupling lengthened, pump shaft is positioned at one end of non-drive side and is then contained in non-drive side bearing body 12.It is respectively equipped with packaging mechanical seal 8 between pump shaft 9 and the driving side of pump cover 4 pump housing 7, non-drive side, the packaging mechanical seal 8 of driving side is respectively and fixedly connected on pump cover 4 and the pump housing 7, the packaging mechanical seal 8 of non-drive side is respectively and fixedly connected on pump cover 4 and the pump housing 7, and this packaging mechanical seal 8 is self-circulation type.
Being provided with the roller bearing 3 being enclosed within pump shaft 9 in inboard bearing body 2, be provided with the disc 1 being enclosed within pump shaft 9 outside roller bearing 3, the roller bearing 3 in inboard bearing body 2 realizes self-lubricating by disc 1；Being provided with the thrust bearing 11 being enclosed within pump shaft 9 in non-drive side bearing body 12, be provided with the disc 13 being enclosed within pump shaft 9 outside thrust bearing 11, the thrust bearing 11 in non-drive side bearing body 12 realizes self-lubricating by disc 13.The roller bearing 3 of driving side and the thrust bearing 11 of non-drive side are for radially supporting pump shaft 9.Being respectively equipped with import 16 and outlet 14 on the pump housing, be Flange joint form, this import 16 and outlet 14 are horizontal direction, it is possible to meet the requirement installed.
Being provided with impeller 6 at the middle keyway of pump shaft 9, in both sides, axle sleeve 24 and locking nut 25 by being enclosed within pump shaft 9 positions impeller 6.Impeller 6 is back-to-back centrifugal double-entry impeller, due to symmetrical configuration, it is possible to balancing axial thrust effectively, and residual axial force is balanced by thrust bearing 11；Being equipped with sealing ring 5 before and after impeller 6, sealing ring 5 is generally applicable, and i.e. front and back sealing ring 5 is interchangeable.
Claims (6)
1. a used in nuclear power station component cooling pump, it includes: the pump housing, pump cover, impeller, pump shaft, it is characterized in that: pump shaft is inserted in impeller, the two ends of pump shaft are arranged on the pump housing, impeller is provided above the pump cover being connected with the pump housing, the both sides of the pump housing are respectively arranged with side bearing body support frame, it is fixedly arranged above bearing body at side bearing body support frame, described bearing body is respectively drive end bearing body and non-drive side bearing body, it is provided with disc in drive end bearing body, and linked together with pump shaft by cylinder roller bearing, a disc it is also equipped with in non-drive side bearing body, this disc is arranged on pump shaft end, non-drive side bearing body is connected by thrust bearing with pump shaft；Being provided with impeller in the middle part of pump shaft, impeller is provided above pump cover.
2. the used in nuclear power station component cooling pump as described in claim 1, it is characterised in that: it is equipped with before and after's sealing ring on impeller.
3. the used in nuclear power station component cooling pump as described in claim 1, it is characterised in that: the packaging mechanical seal that axle envelope is interior circulation between described pump shaft and the pump housing, pump cover.
4. the used in nuclear power station component cooling pump as described in claim 1, it is characterised in that: set import on the described pump housing, outlet all below pump spindle center line horizontally, parallel with pump spindle center line, import, the dead in line of outlet.
5. the used in nuclear power station component cooling pump as described in claim 1, it is characterised in that: the drive end of described pump shaft is connected with inboard bearing body by roller bearing, and the anti-drive end of pump shaft is connected with non-drive side bearing body by thrust bearing；The disc being enclosed within pump shaft it is provided with, it is achieved self-lubricating outside described roller bearing；The disc being enclosed within pump shaft it is provided with, it is achieved self-lubricating outside described thrust bearing.
6. the used in nuclear power station component cooling pump as described in claim 1, it is characterised in that: described pump shaft is positioned at one end of non-drive side and is contained in non-drive side bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043865.0U CN205478344U (en) | 2016-01-18 | 2016-01-18 | Avionics cooling water pump for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043865.0U CN205478344U (en) | 2016-01-18 | 2016-01-18 | Avionics cooling water pump for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478344U true CN205478344U (en) | 2016-08-17 |
Family
ID=56670876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620043865.0U Active CN205478344U (en) | 2016-01-18 | 2016-01-18 | Avionics cooling water pump for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478344U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337842A (en) * | 2016-11-17 | 2017-01-18 | 上海阿波罗机械股份有限公司 | Freezing water pump used by nuclear power station |
| CN106351845A (en) * | 2016-11-17 | 2017-01-25 | 上海阿波罗机械股份有限公司 | CAP1400 nuclear power plant spent fuel pool cooling pump |
| CN106499672A (en) * | 2016-11-17 | 2017-03-15 | 上海阿波罗机械股份有限公司 | A kind of nuclear power plant equipment cooling pump |
| CN112814919A (en) * | 2020-12-31 | 2021-05-18 | 沈阳鼓风机集团核电泵业有限公司 | Equipment cooling water pump for 1400MW nuclear power unit |
-
2016
- 2016-01-18 CN CN201620043865.0U patent/CN205478344U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337842A (en) * | 2016-11-17 | 2017-01-18 | 上海阿波罗机械股份有限公司 | Freezing water pump used by nuclear power station |
| CN106351845A (en) * | 2016-11-17 | 2017-01-25 | 上海阿波罗机械股份有限公司 | CAP1400 nuclear power plant spent fuel pool cooling pump |
| CN106499672A (en) * | 2016-11-17 | 2017-03-15 | 上海阿波罗机械股份有限公司 | A kind of nuclear power plant equipment cooling pump |
| CN112814919A (en) * | 2020-12-31 | 2021-05-18 | 沈阳鼓风机集团核电泵业有限公司 | Equipment cooling water pump for 1400MW nuclear power unit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |