CN205446055U - A condensate pump for large -scale thermal power plants - Google Patents
A condensate pump for large -scale thermal power plants Download PDFInfo
- Publication number
- CN205446055U CN205446055U CN201521134518.0U CN201521134518U CN205446055U CN 205446055 U CN205446055 U CN 205446055U CN 201521134518 U CN201521134518 U CN 201521134518U CN 205446055 U CN205446055 U CN 205446055U
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- Prior art keywords
- seat
- fixedly mounted
- axle
- bearing
- sleeve
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- 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 - Fee Related
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Abstract
The utility model discloses a condensate pump for large -scale thermal power plants, main content is: the motor is installed on the top surface of motor support, the bearing frame is installed in the motor support, the machine big envelope is installed last epaxial, the round nut is installed last epaxial, bearing cover installs on the top surface of bearing frame, install on the top surface of last pump seat motor support bottom surface, the machine seals the seat and installs in last pump seat, mechanical seal press cover installs on the machine seals the top surface of seat, the machine seals the seat recess and installs mechanical seal with the mechanical seal press cover recess, go up on the top surface of installing pump seat under in the pump seat bottom surface, the top tube is installed on the bottom surface of last pump seat, be in the same place with the low tube installation in the top tube bottom, the intermediate shaft bearing seat is installed in the recess between top tube and the low tube, the intermediate bushing is installed in the centre bore of intermediate shaft bearing seat, middle bushing installation is last epaxial, the chopped -off head baffle is installed on the linkage segment, chopped -off head install impeller is epaxial under, the horn tube is installed on the bottom surface of chopped -off head baffle.
Description
Technical field
This utility model relates to condensate pump technical field, specifically, particularly to a kind of condensate pump for large-size thermal power plant.
Background technology
Existing power plant is with requiring that operating condition is: Q=510m3/ h, H=140m, △ h=3M.In 200MW thermal power generation, the former selection of condensate pump is 8LDTN-6Z model condensate pump, and this pump performance is Q=560m3/ h, H=170m, η=76%, net positive suction head △ h=3M, shaft power is 341kw, and selection motor is N=400kw, whole pump total length is 7000mm, and cylinder portion total length is 4175mm, and pump itself has axial rolling bearing, therefore axial force is contracted by pump, therefore needs well depth Φ 800 × 5000mm, and pump weight is 6100kg, condensate pump pump body overlength, cavitation phenomenons easily occur, easily occur leaking, vibrate, the phenomenon such as not of exerting oneself in operation process, part is easy to wear.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of condensate pump for large-size thermal power plant, it is therefore an objective to reduce the length of pump, improves service efficiency, reduces fault rate.
This utility model solves its technical problem and be the technical scheme is that a kind of condensate pump for large-size thermal power plant, including oviduct, impeller nut, first stage impeller, chopped-off head baffle, Lower shaft sleeve, bottom bracket axle, Upper shaft sleeve, baffle, linkage section, impeller, lower axle, lower pump seat, down tube, intermediate shaft coupling, middle bearing bracket, middle bearing shell, middle axle sleeve, upper pipe, upper shaft, upper pump seat, machine envelope seat, machine sealed cover, mechanical seal, machine big envelope, first axle sleeve, second axle sleeve, bearing, bearing block, bearing gland, round nut, shaft coupling, electric machine support and motor；nullDescribed motor is fixedly mounted on the end face of electric machine support by screw，Described upper shaft top is connected with motor output shaft by shaft coupling，Described bearing block is fixedly mounted in electric machine support，Described machine big envelope is arranged in upper shaft，Described first axle sleeve is arranged in upper shaft and the first axle sleeve bottom surface withstands on the end face of machine big envelope，Described second axle sleeve is arranged in upper shaft，Described bearing inner race is arranged on the second axle sleeve，Bearing outer ring is arranged in bearing block centre bore，Described round nut is arranged in upper shaft and round nut bottom surface withstands on the end face of the second axle sleeve，Described bearing gland is fixedly mounted on the end face of bearing block，Described electric machine support bottom surface is fixedly mounted on the end face of upper pump seat，Described machine envelope seat is fixedly mounted in upper pump seat，Described machine sealed cover is fixedly mounted on the end face of machine envelope seat by screw，Described machine envelope seat groove is provided with mechanical seal with machine sealed cover groove，Described upper pump seat bottom surface is fixedly mounted on the end face of lower pump seat，Described upper pipe is fixedly mounted on the bottom surface of upper pump seat，Described upper pipe bottom is fixedly installed togather with down tube by screw and nut，Described middle bearing bracket is arranged in the groove between pipe and down tube，Described intermediate bushing is arranged in the centre bore of middle bearing bracket，Described middle axle sleeve is arranged in upper shaft，Described lower axle is connected with upper shaft by intermediate shaft coupling，The bottom of described down tube is provided with several baffles by linkage section，Described impeller is fixedly mounted on Lower shaft sleeve by flat key、On bottom bracket axle and Upper shaft sleeve，Described Lower shaft sleeve、Bottom bracket axle and Upper shaft sleeve are all arranged on lower axle，Described impeller nut is fixedly mounted on the bottom surface of lower axle，Described chopped-off head baffle is fixedly mounted on linkage section，Described first stage impeller is arranged on lower axle，Described oviduct is fixedly mounted on the bottom surface of chopped-off head baffle.
As preferably, described bearing block centre bore is provided with annular groove, is provided with lip-shaped sealed ring, lip-shaped sealed ring endoporus and the contact of the first sleeve outer circle cylinder in annular groove.
As preferably, described upper pump seat is provided with window.
As preferably, described electric machine support end face is provided with annular groove, and described motor location and installation is in the annular groove of electric machine support.
As preferably, the ring flange on described bearing block top is provided with annular groove, and bearing block passes through annular groove location and installation in electric machine support bottom center installing hole.
This utility model compared with prior art has the advantage that type is safe and reliable to operation, it is to avoid produce cavitation phenomenons, does not goes out leak, vibrates, the phenomenon such as inadequate of exerting oneself in operation process, and parts depreciation rate is low, and some parts do not wear and tear.Therefore saying, power plant alleviates many burdens in terms of maintenance maintenance, is deeply welcome by service worker, and has saved the substantial amounts of energy, and improves efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of detailed description of the invention of the present utility model.
Description of reference numerals:
1-oviduct, 2-impeller nut, 3-first stage impeller, 4-chopped-off head baffle, 5-Lower shaft sleeve, 6-bottom bracket axle, 7-Upper shaft sleeve, 8-baffle, 9-linkage section, 10-impeller, axle under 11-, pump seat under 12-, 13-down tube, 14-intermediate shaft coupling, 15-middle bearing bracket, bearing shell in the middle of 16-, axle sleeve in the middle of 17-, the upper pipe of 18-, 19-upper shaft, 20-upper pump seat, 21-machine envelope seat, 22-machine sealed cover, 23-mechanical seal, 24-machine big envelope, 25-the first axle sleeve, 26-the second axle sleeve, 27-bearing, 28-bearing block, 29-bearing gland, 30-round nut, 31-shaft coupling, 32-electric machine support, 33-motor.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment describes this utility model detailed description of the invention:
Embodiment, as shown in Figure 1, a kind of condensate pump for large-size thermal power plant, including oviduct 1, impeller nut 2, first stage impeller 3, chopped-off head baffle 4, Lower shaft sleeve 5, bottom bracket axle 6, Upper shaft sleeve 7, baffle 8, linkage section 9, impeller 10, lower axle 11, lower pump seat 12, down tube 13, intermediate shaft coupling 14, middle bearing bracket 15, middle bearing shell 16, middle axle sleeve 17, upper pipe 18, upper shaft 19, upper pump seat 20, machine envelope seat 21, machine sealed cover 22, mechanical seal 23, machine big envelope 24, first axle sleeve 25, second axle sleeve 26, bearing 27, bearing block 28, bearing gland 29, round nut 30, shaft coupling 31, electric machine support 32 and motor 33；nullDescribed motor 33 is fixedly mounted on the end face of electric machine support 32 by screw，Described upper shaft 19 top is connected with motor 33 output shaft by shaft coupling 31，Described bearing block 28 is fixedly mounted in electric machine support 32，Described machine big envelope 24 is arranged in upper shaft 19，Described first axle sleeve 25 is arranged in upper shaft 19 and the first axle sleeve 25 bottom surface withstands on the end face of machine big envelope 24，Described second axle sleeve 26 is arranged in upper shaft 19，Described bearing 27 inner ring is arranged on the second axle sleeve 26，Bearing 27 outer ring is arranged in bearing block 28 centre bore，Described round nut 30 is arranged in upper shaft 19 and round nut 30 bottom surface withstands on the end face of the second axle sleeve 26，Described bearing gland 29 is fixedly mounted on the end face of bearing block 28，Described electric machine support 32 bottom surface is fixedly mounted on the end face of upper pump seat 20，Described machine envelope seat 21 is fixedly mounted in upper pump seat 20，Described machine sealed cover 22 is fixedly mounted on the end face of machine envelope seat 21 by screw，Described machine envelope seat 21 groove is provided with mechanical seal 23 with machine sealed cover 22 groove，Described upper pump seat 20 bottom surface is fixedly mounted on the end face of lower pump seat 12，Described upper pipe 18 is fixedly mounted on the bottom surface of upper pump seat 20，Described upper pipe 18 bottom is fixedly installed togather with down tube 13 by screw and nut，Described middle bearing bracket 15 is arranged in the groove between pipe 18 and down tube 13，Described intermediate bushing 16 is arranged in the centre bore of middle bearing bracket 15，Described middle axle sleeve 17 is arranged in upper shaft 19，Described lower axle 11 is connected with upper shaft 19 by intermediate shaft coupling 14，The bottom of described down tube 13 is provided with several baffles 8 by linkage section 9，Described impeller 10 is fixedly mounted on Lower shaft sleeve 5 by flat key、On bottom bracket axle 6 and Upper shaft sleeve 7，Described Lower shaft sleeve 5、Bottom bracket axle 6 and Upper shaft sleeve 7 are all arranged on lower axle 11，Described impeller nut 2 is fixedly mounted on the bottom surface of lower axle 11，Described chopped-off head baffle 3 is fixedly mounted on linkage section 9，Described first stage impeller 3 is arranged on lower axle 11，Described oviduct 1 is fixedly mounted on the bottom surface of chopped-off head baffle 3.
Preferably, described bearing block 28 centre bore is provided with annular groove, is provided with lip-shaped sealed ring, lip-shaped sealed ring endoporus and the contact of the first axle sleeve 25 external cylindrical surface in annular groove.
Preferably, described upper pump seat 20 is provided with window.
Preferably, described electric machine support 32 end face is provided with annular groove, and described motor 33 location and installation is in the annular groove of electric machine support 32.
Above in conjunction with accompanying drawing, this utility model preferred implementation is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of without departing from this utility model objective.
Many other can be made without departing from spirit and scope of the present utility model to change and remodeling.Should be appreciated that this utility model is not limited to specific embodiment, scope of the present utility model is defined by the following claims.
Claims (5)
1. the condensate pump for large-size thermal power plant, it is characterised in that: include oviduct, impeller nut, first stage impeller, chopped-off head baffle, Lower shaft sleeve, bottom bracket axle, Upper shaft sleeve, baffle, linkage section, impeller, lower axle, lower pump seat, down tube, intermediate shaft coupling, middle bearing bracket, middle bearing shell, middle axle sleeve, upper pipe, upper shaft, upper pump seat, machine envelope seat, machine sealed cover, mechanical seal, machine big envelope, the first axle sleeve, the second axle sleeve, bearing, bearing block, bearing gland, round nut, shaft coupling, electric machine support and motor；nullDescribed motor is fixedly mounted on the end face of electric machine support by screw，Described upper shaft top is connected with motor output shaft by shaft coupling，Described bearing block is fixedly mounted in electric machine support，Described machine big envelope is arranged in upper shaft，Described first axle sleeve is arranged in upper shaft and the first axle sleeve bottom surface withstands on the end face of machine big envelope，Described second axle sleeve is arranged in upper shaft，Described bearing inner race is arranged on the second axle sleeve，Bearing outer ring is arranged in bearing block centre bore，Described round nut is arranged in upper shaft and round nut bottom surface withstands on the end face of the second axle sleeve，Described bearing gland is fixedly mounted on the end face of bearing block，Described electric machine support bottom surface is fixedly mounted on the end face of upper pump seat，Described machine envelope seat is fixedly mounted in upper pump seat，Described machine sealed cover is fixedly mounted on the end face of machine envelope seat by screw，Described machine envelope seat groove is provided with mechanical seal with machine sealed cover groove，Described upper pump seat bottom surface is fixedly mounted on the end face of lower pump seat，Described upper pipe is fixedly mounted on the bottom surface of upper pump seat，Described upper pipe bottom is fixedly installed togather with down tube by screw and nut，Described middle bearing bracket is arranged in the groove between pipe and down tube，Described intermediate bushing is arranged in the centre bore of middle bearing bracket，Described middle axle sleeve is arranged in upper shaft，Described lower axle is connected with upper shaft by intermediate shaft coupling，The bottom of described down tube is provided with several baffles by linkage section，Described impeller is fixedly mounted on Lower shaft sleeve by flat key、On bottom bracket axle and Upper shaft sleeve，Described Lower shaft sleeve、Bottom bracket axle and Upper shaft sleeve are all arranged on lower axle，Described impeller nut is fixedly mounted on the bottom surface of lower axle，Described chopped-off head baffle is fixedly mounted on linkage section，Described first stage impeller is arranged on lower axle，Described oviduct is fixedly mounted on the bottom surface of chopped-off head baffle.
A kind of condensate pump for large-size thermal power plant, it is characterised in that: described bearing block centre bore is provided with annular groove, is provided with lip-shaped sealed ring, lip-shaped sealed ring endoporus and the contact of the first sleeve outer circle cylinder in annular groove.
A kind of condensate pump for large-size thermal power plant, it is characterised in that: described upper pump seat is provided with window.
A kind of condensate pump for large-size thermal power plant, it is characterised in that: described electric machine support end face is provided with annular groove, and described motor location and installation is in the annular groove of electric machine support.
A kind of condensate pump for large-size thermal power plant, it is characterised in that: the ring flange on described bearing block top is provided with annular groove, and bearing block passes through annular groove location and installation in electric machine support bottom center installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134518.0U CN205446055U (en) | 2015-12-31 | 2015-12-31 | A condensate pump for large -scale thermal power plants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134518.0U CN205446055U (en) | 2015-12-31 | 2015-12-31 | A condensate pump for large -scale thermal power plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446055U true CN205446055U (en) | 2016-08-10 |
Family
ID=56599206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521134518.0U Expired - Fee Related CN205446055U (en) | 2015-12-31 | 2015-12-31 | A condensate pump for large -scale thermal power plants |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446055U (en) |
-
2015
- 2015-12-31 CN CN201521134518.0U patent/CN205446055U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212100 No. 69 Heng Road, Xincheng Town, Zhenjiang, Jiangsu, Dantu Patentee after: Jiangsu HENGWEI fluid technology Limited by Share Ltd Address before: 212100 No. 69 Heng Road, Xincheng Town, Zhenjiang, Jiangsu, Dantu Patentee before: Zhenjiang Great Pump Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20171231 |