CN105422463A - Condensate pump for large thermal power plant - Google Patents
Condensate pump for large thermal power plant Download PDFInfo
- Publication number
- CN105422463A CN105422463A CN201511025908.9A CN201511025908A CN105422463A CN 105422463 A CN105422463 A CN 105422463A CN 201511025908 A CN201511025908 A CN 201511025908A CN 105422463 A CN105422463 A CN 105422463A
- Authority
- CN
- China
- Prior art keywords
- seat
- axle
- fixedly mounted
- bearing
- sleeve
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Abstract
The invention discloses a condensate pump for a large thermal power plant. The condensate pump is mainly characterized in that a motor is mounted on the top surface of a motor bracket; a bearing seat is mounted in the motor bracket; a mechanical seal sleeve is mounted on an upper shaft; a round nut is mounted on the upper shaft; a bearing gland is mounted on the top surface of the bearing seat; the bottom surface of the motor bracket is mounted on the top surface of an upper pump seat; a mechanical seal seat is mounted in the upper pump seat; a mechanical seal gland is mounted on the top surface of the mechanical seal seat; a mechanical seal seat groove and a mechanical seal gland groove are equipped with mechanical seals; the bottom surface of the upper pump seat is mounted on the top surface of a lower pump seat; an upper pipe is mounted on the bottom surface of the upper pump seat; the bottom end of the upper pipe is mounted with a lower pipe together; a middle bearing seat is mounted in a groove between the upper pipe and the lower pipe; a middle bearing bush is mounted in a center hole of the middle bearing seat; a middle shaft sleeve is mounted on the upper shaft; a first-stage flow guide body is mounted at a connecting section; a first-stage impeller is mounted on a lower shaft; a horn-shaped pipe is mounted on the bottom surface of the first-class flow guide body.
Description
Technical field
The present invention relates to condensate pump technical field, specifically, particularly a kind of condensate pump for large-size thermal power plant.
Background technique
Existing power plant is with requiring that operating conditions is: Q=510m
3/ h, H=140m, △ h=3M.In 200MW thermal power generation, former what select is 8LDTN-6Z model condensate pump to condensate pump, and this pump performance is Q=560m
3/ h, H=170m, η=76%, net positive suction head △ h=3M, air horsepower is 341kw, selects motor to be 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, easily there is cavitation phenomenons, easily occur in operation process leaking, vibrate, the phenomenon such as not of exerting oneself, part is easy to wear.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of condensate pump for large-size thermal power plant, and object is the length reducing pump, improves utilization efficiency, reduces rate of fault.
The technical solution adopted for the present invention to solve the technical problems is: a kind of condensate pump for large-size thermal power plant, comprise oviduct, impeller nut, first stage impeller, chopped-off head deflector, Lower shaft sleeve, Intermediate shaft sleeve, Upper shaft sleeve, deflector, linkage section, impeller, lower shaft, lower pump seat, lower pipe, intermediate shaft coupling, middle bearing bracket, middle bearing shell, middle axle sleeve, upper pipe, upper axle, upper pump seat, machine envelope seat, machine sealed cover, mechanical seal, machine big envelope, first axle sleeve, second axle sleeve, bearing, bearing support, bearing gland, round nut, coupling, electric machine support and motor, described motor is fixedly mounted on the end face of electric machine support by screw, described upper axle top is connected with motor output shaft by coupling, described bearing support is fixedly mounted in electric machine support, described machine big envelope is arranged on axle, described first axle sleeve is arranged on axle and the first axle sleeve bottom surface withstands on the end face of machine big envelope, described second axle sleeve is arranged on axle, described bearing inner race is arranged on the second axle sleeve, bearing outer ring is arranged in bearing support center hole, described round nut is arranged on axle and round nut bottom surface and withstands on the end face of the second axle sleeve, described bearing gland is fixedly mounted on the end face of bearing support, 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 and machine sealed cover groove are provided with mechanical seal, 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 by screw and nut and lower pipe, described middle bearing bracket is arranged in the groove between pipe and lower pipe, described intermediate bushing is arranged in the center hole of middle bearing bracket, described middle axle sleeve is arranged on axle, described lower shaft is connected with upper axle by intermediate shaft coupling, the bottom of described lower pipe is provided with several deflectors by linkage section, described impeller is fixedly mounted on Lower shaft sleeve by flat key, on Intermediate shaft sleeve and Upper shaft sleeve, described Lower shaft sleeve, Intermediate shaft sleeve and Upper shaft sleeve are all arranged on lower shaft, described impeller nut is fixedly mounted on the bottom surface of lower shaft, described chopped-off head deflector is fixedly mounted on linkage section, described first stage impeller is arranged on lower shaft, described oviduct is fixedly mounted on the bottom surface of chopped-off head deflector.
As preferably, described bearing support center hole is provided with annular groove, is provided with lip-shaped sealed ring in annular groove, and lip-shaped sealed ring endoporus contacts with the first sleeve outer circle cylinder.
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 flange plate on described bearing support top is provided with annular groove, bearing support by annular groove location and installation in electric machine support bottom center mounting hole.
The present invention compared with prior art has the following advantages: type is safe and reliable to operation, avoids producing cavitation phenomenons, does not go out to 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 say, power plant alleviates many burdens in maintenance maintenance, the dark welcome by service worker, and has saved a large amount of energy, and improves efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention.
Description of reference numerals:
1-oviduct, 2-impeller nut, 3-first stage impeller, 4-chopped-off head deflector, 5-Lower shaft sleeve, 6-Intermediate shaft sleeve, 7-Upper shaft sleeve, 8-deflector, 9-linkage section, 10-impeller, 11-lower shaft, pump seat under 12-, manage under 13-, 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-, the upper axle of 19-, 20-upper pump seat, 21-machine envelope seat, 22-machine sealed cover, 23-mechanical seal, 24-machine big envelope, 25-first axle sleeve, 26-second axle sleeve, 27-bearing, 28-bearing support, 29-bearing gland, 30-round nut, 31-coupling, 32-electric machine support, 33-motor.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the invention is described:
Embodiment, as shown in Figure 1, a kind of condensate pump for large-size thermal power plant, comprise oviduct 1, impeller nut 2, first stage impeller 3, chopped-off head deflector 4, Lower shaft sleeve 5, Intermediate shaft sleeve 6, Upper shaft sleeve 7, deflector 8, linkage section 9, impeller 10, lower shaft 11, lower pump seat 12, lower pipe 13, intermediate shaft coupling 14, middle bearing bracket 15, middle bearing shell 16, middle axle sleeve 17, upper pipe 18, upper axle 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 support 28, bearing gland 29, round nut 30, coupling 31, electric machine support 32 and motor 33, described motor 33 is fixedly mounted on by screw on the end face of electric machine support 32, described upper axle 19 top is connected with motor 33 output shaft by coupling 31, described bearing support 28 is fixedly mounted in electric machine support 32, described machine big envelope 24 is arranged on axle 19, described first axle sleeve 25 is arranged on axle 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 on axle 19, described bearing 27 inner ring is arranged on the second axle sleeve 26, bearing 27 outer ring is arranged in bearing support 28 center hole, described round nut 30 is arranged on axle 19 and round nut 30 bottom surface and withstands on the end face of the second axle sleeve 26, described bearing gland 29 is fixedly mounted on the end face of bearing support 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 and machine sealed cover 22 groove are provided with mechanical seal 23, 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 by screw and nut and lower pipe 13, described middle bearing bracket 15 is arranged in the groove between pipe 18 and lower pipe 13, described intermediate bushing 16 is arranged in the center hole of middle bearing bracket 15, described middle axle sleeve 17 is arranged on axle 19, described lower shaft 11 is connected with upper axle 19 by intermediate shaft coupling 14, the bottom of described lower pipe 13 is provided with several deflectors 8 by linkage section 9, described impeller 10 is fixedly mounted on Lower shaft sleeve 5 by flat key, on Intermediate shaft sleeve 6 and Upper shaft sleeve 7, described Lower shaft sleeve 5, Intermediate shaft sleeve 6 and Upper shaft sleeve 7 are all arranged on lower shaft 11, described impeller nut 2 is fixedly mounted on the bottom surface of lower shaft 11, described chopped-off head deflector 3 is fixedly mounted on linkage section 9, described first stage impeller 3 is arranged on lower shaft 11, described oviduct 1 is fixedly mounted on the bottom surface of chopped-off head deflector 3.
Preferably, described bearing support 28 center hole is provided with annular groove, is provided with lip-shaped sealed ring in annular groove, and lip-shaped sealed ring endoporus contacts with the first axle sleeve 25 external cylindrical surface.
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.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above, but the invention is not restricted to above-mentioned mode of execution, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific mode of execution, scope of the present invention is defined by the following claims.
Claims (5)
1. for a condensate pump for large-size thermal power plant, it is characterized in that: comprise oviduct, impeller nut, first stage impeller, chopped-off head deflector, Lower shaft sleeve, Intermediate shaft sleeve, Upper shaft sleeve, deflector, linkage section, impeller, lower shaft, lower pump seat, lower pipe, intermediate shaft coupling, middle bearing bracket, middle bearing shell, middle axle sleeve, upper pipe, upper axle, upper pump seat, machine envelope seat, machine sealed cover, mechanical seal, machine big envelope, the first axle sleeve, the second axle sleeve, bearing, bearing support, bearing gland, round nut, coupling, electric machine support and motor, described motor is fixedly mounted on the end face of electric machine support by screw, described upper axle top is connected with motor output shaft by coupling, described bearing support is fixedly mounted in electric machine support, described machine big envelope is arranged on axle, described first axle sleeve is arranged on axle and the first axle sleeve bottom surface withstands on the end face of machine big envelope, described second axle sleeve is arranged on axle, described bearing inner race is arranged on the second axle sleeve, bearing outer ring is arranged in bearing support center hole, described round nut is arranged on axle and round nut bottom surface and withstands on the end face of the second axle sleeve, described bearing gland is fixedly mounted on the end face of bearing support, 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 and machine sealed cover groove are provided with mechanical seal, 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 by screw and nut and lower pipe, described middle bearing bracket is arranged in the groove between pipe and lower pipe, described intermediate bushing is arranged in the center hole of middle bearing bracket, described middle axle sleeve is arranged on axle, described lower shaft is connected with upper axle by intermediate shaft coupling, the bottom of described lower pipe is provided with several deflectors by linkage section, described impeller is fixedly mounted on Lower shaft sleeve by flat key, on Intermediate shaft sleeve and Upper shaft sleeve, described Lower shaft sleeve, Intermediate shaft sleeve and Upper shaft sleeve are all arranged on lower shaft, described impeller nut is fixedly mounted on the bottom surface of lower shaft, described chopped-off head deflector is fixedly mounted on linkage section, described first stage impeller is arranged on lower shaft, described oviduct is fixedly mounted on the bottom surface of chopped-off head deflector.
2. a kind of condensate pump for large-size thermal power plant as claimed in claim 1, it is characterized in that: described bearing support center hole is provided with annular groove, be provided with lip-shaped sealed ring in annular groove, lip-shaped sealed ring endoporus contacts with the first sleeve outer circle cylinder.
3. a kind of condensate pump for large-size thermal power plant as claimed in claim 1, is characterized in that: described upper pump seat is provided with window.
4. a kind of condensate pump for large-size thermal power plant as claimed in claim 1, it is characterized in that: described electric machine support end face is provided with annular groove, described motor location and installation is in the annular groove of electric machine support.
5. a kind of condensate pump for large-size thermal power plant as claimed in claim 1, is characterized in that: the flange plate on described bearing support top is provided with annular groove, bearing support by annular groove location and installation in electric machine support bottom center mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025908.9A CN105422463A (en) | 2015-12-31 | 2015-12-31 | Condensate pump for large thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025908.9A CN105422463A (en) | 2015-12-31 | 2015-12-31 | Condensate pump for large thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422463A true CN105422463A (en) | 2016-03-23 |
Family
ID=55500922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511025908.9A Pending CN105422463A (en) | 2015-12-31 | 2015-12-31 | Condensate pump for large thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422463A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337820A (en) * | 2016-09-29 | 2017-01-18 | 上海阿波罗机械股份有限公司 | Water pump for nuclear power station plant |
| CN108980054A (en) * | 2018-07-25 | 2018-12-11 | 成都西南水泵厂 | Vertical high-efficiency energy-saving automatic control self-priming scale pump |
| CN109973398A (en) * | 2019-03-21 | 2019-07-05 | 陕西科技大学 | A kind of combined type condensate pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795510Y (en) * | 2004-12-14 | 2006-07-12 | 上海凯士比泵有限公司 | Condensed water pump of 600MW thermal power generator unit |
| CN101225833A (en) * | 2008-01-30 | 2008-07-23 | 长沙天鹅工业泵股份有限公司 | Vertical barrel pocket type extraction pump |
| CN201535257U (en) * | 2009-10-23 | 2010-07-28 | 长沙天鹅工业泵股份有限公司 | Vertical tube bag type coagulated water pump |
| CN201714679U (en) * | 2010-07-07 | 2011-01-19 | 沈阳鼓风机集团有限公司 | Condensate pump for million-kilowatt super-critical thermal power generating unit |
| CN102116319A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Condensate pump used in nuclear power station |
| CN201925235U (en) * | 2010-12-30 | 2011-08-10 | 上海阿波罗机械股份有限公司 | Condensate pump for nuclear power station |
| CN202165300U (en) * | 2011-07-22 | 2012-03-14 | 李冬庆 | Bearing dust-proof and water-proof structure for submerged pump |
| CN202597267U (en) * | 2012-03-27 | 2012-12-12 | 上海阿波罗机械股份有限公司 | Station-service water pump used for nuclear power station |
| CN203655646U (en) * | 2013-11-13 | 2014-06-18 | 上海凯士比泵有限公司 | Vertical condensate pump provided with balance device |
-
2015
- 2015-12-31 CN CN201511025908.9A patent/CN105422463A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795510Y (en) * | 2004-12-14 | 2006-07-12 | 上海凯士比泵有限公司 | Condensed water pump of 600MW thermal power generator unit |
| CN101225833A (en) * | 2008-01-30 | 2008-07-23 | 长沙天鹅工业泵股份有限公司 | Vertical barrel pocket type extraction pump |
| CN201535257U (en) * | 2009-10-23 | 2010-07-28 | 长沙天鹅工业泵股份有限公司 | Vertical tube bag type coagulated water pump |
| CN201714679U (en) * | 2010-07-07 | 2011-01-19 | 沈阳鼓风机集团有限公司 | Condensate pump for million-kilowatt super-critical thermal power generating unit |
| CN102116319A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Condensate pump used in nuclear power station |
| CN201925235U (en) * | 2010-12-30 | 2011-08-10 | 上海阿波罗机械股份有限公司 | Condensate pump for nuclear power station |
| CN202165300U (en) * | 2011-07-22 | 2012-03-14 | 李冬庆 | Bearing dust-proof and water-proof structure for submerged pump |
| CN202597267U (en) * | 2012-03-27 | 2012-12-12 | 上海阿波罗机械股份有限公司 | Station-service water pump used for nuclear power station |
| CN203655646U (en) * | 2013-11-13 | 2014-06-18 | 上海凯士比泵有限公司 | Vertical condensate pump provided with balance device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337820A (en) * | 2016-09-29 | 2017-01-18 | 上海阿波罗机械股份有限公司 | Water pump for nuclear power station plant |
| CN108980054A (en) * | 2018-07-25 | 2018-12-11 | 成都西南水泵厂 | Vertical high-efficiency energy-saving automatic control self-priming scale pump |
| CN109973398A (en) * | 2019-03-21 | 2019-07-05 | 陕西科技大学 | A kind of combined type condensate pump |
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Application publication date: 20160323 |
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| RJ01 | Rejection of invention patent application after publication |