CN205639044U - Nuclear power plant boiler water -feeding pump with oil lubrication bearing body - Google Patents
Nuclear power plant boiler water -feeding pump with oil lubrication bearing body Download PDFInfo
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- CN205639044U CN205639044U CN201620360116.0U CN201620360116U CN205639044U CN 205639044 U CN205639044 U CN 205639044U CN 201620360116 U CN201620360116 U CN 201620360116U CN 205639044 U CN205639044 U CN 205639044U
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- bearing body
- drive end
- end bearing
- oil lubrication
- thin oil
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Abstract
The utility model provides an instrument that nuclear power plant boiler water -feeding pump with oil lubrication bearing body, prior art adopt force -feed lubrication must be equipped with one set of thin oil station and be equipped with some corresponding control. Lead to the fact the increase of cost, especially the maintenance cost is very big especially, the utility model discloses the technical essential is that the output shaft drive end is provided with oil lubrication drive end bearing body, and the non - drive end of output shaft is provided with the non - drive end bearing body of rare lubrication, oil lubrication drive end bearing body all is provided with a cooling chamber with the non - drive end bearing body lower part of oil lubrication, oil lubrication drive end bearing body and the non - drive end bearing body of oil lubrication all through the bolt fastening on the pump body, be provided with a pair of angular contact ball bearing in the non - drive end bearing body of oil lubrication. The utility model discloses an actively the effect is: operate steadily, safe and reliable maintains that cost reduction is nearly 12, the manufacturing cost of pump assembly also greatly the reduction, the utility model discloses still have characteristics such as simple structure, easy and simple to handle, low cost, good reliability.
Description
Technical field
This utility model relates to industrial pump technical field, a kind of nuclear power station boiler feed pump with thin oil lubricant bearing body.
Background technology
The shaft power of the most many producers centrifugal multistage pump multiple centrifugal pump more than more than 710KW, bearing lubrication mode is essentially all employing this structure of forced feed lubrication.Though the bearing body high lubricating effect of this structure, bring corresponding problem the most, and forced feed lubrication to be used must be equipped with a set of Lubricating-oil Station and is equipped with some instrument monitored accordingly.Cause the increase of cost, especially maintenance cost is the most very large, the most sometimes Lubricating-oil Station Leakage happens occasionally, scene is caused to be difficult to clear up, but also it is equipped with a whole set of heat exchanger for Lubricating-oil Station, being used for the temperature by pump operation process bearing produces to lower, the on-site maintenance cost of this type of pump is all very big in a word, and fault rate is also the highest.
Summary of the invention
The purpose of this utility model is to provide a kind of nuclear power station boiler feed pump with thin oil lubricant bearing body.
The technical solution of the utility model is: it includes: the pump housing and output shaft, it is characterized in that: output shaft drive end is provided with thin oil lubricant drive end bearing body, and the anti-drive end of output shaft is provided with rare lubrication non-driven-end bearing body；Thin oil lubricant drive end bearing body and thin oil lubricant non-driven-end bearing body bottom are provided with a cooling chamber；Thin oil lubricant drive end bearing body and thin oil lubricant non-driven-end bearing body are all bolted on the pump housing；It is provided with pair of horns contact ball bearing in thin oil lubricant non-driven-end bearing body.
A kind of nuclear power station boiler feed pump with thin oil lubricant bearing body, is characterized in that: being provided with two cross sections in described thin oil lubricant drive end bearing body is the cavity of square shape, is provided with pair of horns contact ball bearing in one of them cavity.
By shaft power centrifugal multistage pump multiple centrifugal pump between 710 1250KW, including 710, the pump of 1250kw, the bearing body structure that forced feed lubrication is complicated is changed over simple in construction and is beneficial to the bearing body of the lubricious structure of thin oil safeguarded.First being used in forced-lubrication bearing body structure is born the thrust disc of pump residual axial force and the thrust pad cancellation that two sets are matched, the substitute is and replace with a set of paired angular contact ball bearing, the caloric value of bearing is undertaken by the bearing body cooling chamber of outer a week being located at thin oil lubricant, by at the bearing body cooling chamber of a week logical cooling water, thus the big portion heat that bearing produces all is led to supercooled water and takes away, also the caliber on cooling water inlet pipe road is added simultaneously and be twice the flow improving water inlet, make more to cool down water entrance cooling chamber and take away more heat, thus reached intended heat transfer effect.
The utility model has the advantages that: operate steadily, safe and reliable, maintenance cost reduces nearly 1/2, the manufacturing cost of pump assembly also greatly reduction (such as eliminating Lubricating-oil Station and supporting monitoring device, a whole set of heat exchanger, a set of shaft coupling, thrust disc and thrust pad).The features such as this utility model also has simple in construction, easy and simple to handle, with low cost, highly reliable.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is prior art construction schematic diagram.
Detailed description of the invention
Seeing Fig. 1 ~ 2, output shaft drive end is provided with thin oil lubricant drive end bearing 2, and the anti-drive end of output shaft is provided with rare lubrication non-driven-end bearing body 1；Thin oil lubricant drive end bearing body and thin oil lubricant non-driven-end bearing body bottom are provided with a cooling chamber 4；Thin oil lubricant drive end bearing body and thin oil lubricant non-driven-end bearing body are all bolted on the pump housing；It is provided with pair of horns contact ball bearing 3 in thin oil lubricant non-driven-end bearing body.
First it is that thin oil lubricant non-driven-end bearing body pair of horns contact ball bearing instead of thrust disc and two set thrust pads, and thin oil lubricating bearing body structure has an annular can lead to the cooling chamber of cooling water at outer race, by this cooling chamber logical cooling water, thus the mode that bearing heat leads to supercooled water is taken away, and pump assembly is also not have what special requirement to quality of cooling water, it is simply that ordinary tap water.
This structure has a following features:
Thin oil lubricant bearing body structure of the present utility model: there is simple in construction, easy and simple to handle, with low cost, the feature such as highly reliable.Operate steadily at the scene, safe and reliable, maintenance cost reduces nearly 1/2, the manufacturing cost of pump assembly also greatly reduction, thus improve the competitiveness of product in market (such as eliminating Lubricating-oil Station and supporting monitoring device, a whole set of heat exchanger, a set of shaft coupling, thrust disc and thrust pad).
Claims (2)
1. with a nuclear power station boiler feed pump for thin oil lubricant bearing body, it includes: the pump housing and output shaft, it is characterized in that: output shaft drive end is provided with thin oil lubricant drive end bearing body, and the anti-drive end of output shaft is provided with rare lubrication non-driven-end bearing body；Thin oil lubricant drive end bearing body and thin oil lubricant non-driven-end bearing body bottom are provided with a cooling chamber；Thin oil lubricant drive end bearing body and thin oil lubricant non-driven-end bearing body are all bolted on the pump housing；It is provided with pair of horns contact ball bearing in thin oil lubricant non-driven-end bearing body.
2.According to claim 1 DescribedA kind of nuclear power station boiler feed pump with thin oil lubricant bearing body, is characterized in that: being provided with two cross sections in described thin oil lubricant drive end bearing body is the cavity of square shape, is provided with pair of horns contact ball bearing in one of them cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360116.0U CN205639044U (en) | 2016-04-26 | 2016-04-26 | Nuclear power plant boiler water -feeding pump with oil lubrication bearing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360116.0U CN205639044U (en) | 2016-04-26 | 2016-04-26 | Nuclear power plant boiler water -feeding pump with oil lubrication bearing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639044U true CN205639044U (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620360116.0U Active CN205639044U (en) | 2016-04-26 | 2016-04-26 | Nuclear power plant boiler water -feeding pump with oil lubrication bearing body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628146A (en) * | 2020-12-31 | 2021-04-09 | 上海凯泉泵业（集团）有限公司 | Multistage double suction pump with vertical structure |
-
2016
- 2016-04-26 CN CN201620360116.0U patent/CN205639044U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628146A (en) * | 2020-12-31 | 2021-04-09 | 上海凯泉泵业（集团）有限公司 | Multistage double suction pump with vertical structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |