CN102116318A - Pump body structure on condensate pump for nuclear power station - Google Patents
Pump body structure on condensate pump for nuclear power station Download PDFInfo
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- CN102116318A CN102116318A CN 201010613647 CN201010613647A CN102116318A CN 102116318 A CN102116318 A CN 102116318A CN 201010613647 CN201010613647 CN 201010613647 CN 201010613647 A CN201010613647 A CN 201010613647A CN 102116318 A CN102116318 A CN 102116318A
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- power station
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Abstract
The invention discloses a pump body structure on a condensate pump for a nuclear power station. The pump body structure comprises a double-suction spiral case body, a straight pipe, a second stage guide vane, a last stage guide vane and a water outlet case body, which are coaxially connected with each other in sequence from bottom to up, wherein the water outlet case body is fixed at the upper end of an outer cylinder body; the double-suction spiral case body, the straight pipe, the second stage guide vane and the last stage guide vane are arranged in the middle of an inner cavity of the outer cylinder body and hung below a bottom plate of the water outlet case body; a flange mounted on the peripheral surface of a top plate of the straight pipe is connected with the bottom plate of the water outlet case body through a plurality of penetrating rods and nuts which are evenly distributed in the radial direction, so as to grip the second stage guide vane and the last stage guide vane; and the straight pipe comprises a plurality of sections of unit straight pipes coaxially connected with each other. The pump body structure of the condensate pump, which is disclosed by the invention, can reduce vibration of a pump set in the operation process and ensure that the service life of the pump set reaches 60 years.
Description
Technical field
The present invention relates to the pump body structure on a kind of condensate pump of used in nuclear power station.
Background technique
Condensate pump is used to pump the water pump of water of condensation in nuclear power station, its suction side high vacuum occurs cavitation easily and sucks air, and therefore high especially to the anti-cavitation requirement of pump, lift is up to 150 to 350 meters simultaneously.The entire pump body structure of condensate pump is in the prior art: bottom-up coaxial successively continuous double-sucking type volute body, straight tube, secondary stator, final stage stator and water outlet housing, wherein double suction volute body, straight tube, secondary stator and final stage stator are located in the inner chamber of outer cylinder body and integral body is a cantilever structure, promptly only are connected under the base plate of water outlet housing by the upper end of final stage stator.Because cantilever is longer, operation stability is relatively poor, does not wait swell increment what pump group emerged in operation thermal effect caused, in the pump group thermal strain of coupling also bigger, therefore influence working life of pump group.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, the pump body structure on a kind of condensate pump of used in nuclear power station is provided, it can reduce the vibration of pump group in running, and can guarantee to reach the working life of pump group the requirement in 60 years.
The technological scheme that realizes above-mentioned purpose is: the pump body structure on a kind of condensate pump of used in nuclear power station, described condensate pump comprise a vertical outer cylinder body, wherein:
The described pump housing comprises from bottom to top double-sucking type volute body, straight tube, secondary stator, final stage stator and the water outlet housing of mutual coaxial connection successively;
Described water outlet housing is fixed on the upper end of described outer cylinder body, and described double-sucking type volute body, straight tube, secondary stator and final stage stator are located at the inner chamber central authorities of described outer cylinder body and are suspended under the base plate of described water outlet housing;
One flange is installed on the top board outer circumferential face of described straight tube, and rod and nut by some radial equipartitions between the base plate of this flange and described water outlet housing are connected, with described secondary stator and final stage stator handle tightly;
Described straight tube comprises the unit straight tube of the mutual coaxial connection of plurality of sections.
Pump body structure on the condensate pump of above-mentioned used in nuclear power station, wherein, described final stage stator is to be connected with described water outlet housing by a reducing housing that is arranged in described outer cylinder body inner chamber.
Pump body structure on the condensate pump of above-mentioned used in nuclear power station, wherein, the described pump housing comprises that also one is connected the water inlet loudspeaker of the lower end of described double-sucking type volute body.
Pump body structure on the condensate pump of above-mentioned used in nuclear power station, wherein, described plurality of sections unit straight tube connects by flange respectively.
Pump body structure on the condensate pump of above-mentioned used in nuclear power station, wherein, the short transverse compartment of terrain, outer surface upper edge of described outer cylinder body is provided with some stiffening ring muscle.
The technological scheme of the pump body structure on the condensate pump of used in nuclear power station of the present invention, the position of secondary stator and final stage stator adjusted to more be tending towards drive end and more be tending towards fixed end, with the vibration that reduces to cause when secondary impeller and impeller turn round, can increase the rigidity of body, strengthened the stability of pump housing integral body, can also reduce the pressure that bear straight tube inside greatly with moving on secondary stator and the final stage stator, thereby can reduce the straight tube wall thickness, therefore and reduced cost of production, also alleviated the overall weight of pump group, and, reduce the straight tube internal pressure and will make global design safer reliable because length of straight pipe is longer.Adopt the rod nut in the sectional type multilevel hierarchy pump in addition,, thereby reach the purpose that reduces unit vibration, can guarantee to reach the working life of pump group the requirement in 60 years so that secondary stator and final stage stator handle is tight.
Description of drawings
Fig. 1 is the schematic representation of the pump body structure on the condensate pump of used in nuclear power station of the present invention.
Embodiment
In order to understand technological scheme of the present invention better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
See also Fig. 1 again, the pump body structure on the condensate pump of used in nuclear power station of the present invention comprises into water loudspeaker 2, double-sucking type volute body 3, straight tube 4, secondary stator 5, final stage stator 6, reducing housing 7 and water outlet housing 8.Wherein:
Condensate pump comprises a vertical outer cylinder body 1;
Straight tube 4 comprises the plurality of sections unit straight tube by flange 41 mutual coaxial connections respectively, one flange 40 is installed on the top board outer circumferential face of straight tube 4, rod 91 and nut 92 by some radial equipartitions between the base plate 80 of this flange 40 and water outlet housing 8 are connected, with secondary stator 5 and final stage stator 6 tight.
In addition, offer on the top wall of outer cylinder body 1 and in the bottom of secondary stator 5 one with the opposing import 11 of the outlet 91 of water outlet housing 8; The short transverse compartment of terrain, outer surface upper edge of outer cylinder body 1 is provided with some stiffening ring muscle 12, can increase the strength and stiffness of outer cylinder body 1.
Pump body structure on the condensate pump of used in nuclear power station of the present invention, compact structure, overall weight are light, and cost of production is low, and the efficient height operates steadily, and the reliability height can guarantee to reach the working life of pump group the requirement in 60 years.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention the above embodiment's variation, modification.
Claims (5)
1. the pump body structure on the condensate pump of a used in nuclear power station, described condensate pump comprises a vertical outer cylinder body, it is characterized in that,
The described pump housing comprises from bottom to top double-sucking type volute body, straight tube, secondary stator, final stage stator and the water outlet housing of mutual coaxial connection successively;
Described water outlet housing is fixed on the upper end of described outer cylinder body, and described double-sucking type volute body, straight tube, secondary stator and final stage stator are located at the inner chamber central authorities of described outer cylinder body and are suspended under the base plate of described water outlet housing;
One flange is installed on the top board outer circumferential face of described straight tube, and rod and nut by some radial equipartitions between the base plate of this flange and described water outlet housing are connected, with described secondary stator and final stage stator handle tightly;
Described straight tube comprises the unit straight tube of the mutual coaxial connection of plurality of sections.
2. the pump body structure on the condensate pump of used in nuclear power station according to claim 1 is characterized in that, described final stage stator is to be connected with described water outlet housing by a reducing housing that is arranged in described outer cylinder body inner chamber.
3. the pump body structure on the condensate pump of used in nuclear power station according to claim 1 is characterized in that, the described pump housing comprises that also one is connected the water inlet loudspeaker of the lower end of described double-sucking type volute body.
4. the pump body structure on the condensate pump of used in nuclear power station according to claim 1 is characterized in that, described plurality of sections unit straight tube connects by flange respectively.
5. the pump body structure on the condensate pump of used in nuclear power station according to claim 1 is characterized in that, the short transverse compartment of terrain, outer surface upper edge of described outer cylinder body is provided with some stiffening ring muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010613647 CN102116318A (en) | 2010-12-30 | 2010-12-30 | Pump body structure on condensate pump for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010613647 CN102116318A (en) | 2010-12-30 | 2010-12-30 | Pump body structure on condensate pump for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102116318A true CN102116318A (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010613647 Pending CN102116318A (en) | 2010-12-30 | 2010-12-30 | Pump body structure on condensate pump for nuclear power station |
Country Status (1)
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| CN (1) | CN102116318A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619786A (en) * | 2012-03-27 | 2012-08-01 | 上海阿波罗机械股份有限公司 | Structure for inner cylinder body of containment spray pump |
| CN104005963A (en) * | 2014-05-23 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | Main pump structure for small nuclear power plant |
| CN104033390A (en) * | 2014-06-06 | 2014-09-10 | 西安热工研究院有限公司 | Condensate water pump and condensate water system for turbine set as well as control method for condensate water flow |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3011865A1 (en) * | 1980-03-27 | 1981-10-01 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | SUCTION LEVEL FOR A VERTICALLY SET CONDENSATE PUMP |
| CN2348156Y (en) * | 1998-01-26 | 1999-11-10 | 冶金工业部钢铁研究总院靖江不锈钢泵阀厂 | Vertical pump |
| 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 |
| CN201288672Y (en) * | 2008-09-25 | 2009-08-12 | 上海凯士比泵有限公司 | Secondary impeller upper disposing type condensation water pump |
| CN201502564U (en) * | 2009-09-03 | 2010-06-09 | 浙江飞旋泵业有限公司 | Condensate pump cartridge |
-
2010
- 2010-12-30 CN CN 201010613647 patent/CN102116318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3011865A1 (en) * | 1980-03-27 | 1981-10-01 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | SUCTION LEVEL FOR A VERTICALLY SET CONDENSATE PUMP |
| CN2348156Y (en) * | 1998-01-26 | 1999-11-10 | 冶金工业部钢铁研究总院靖江不锈钢泵阀厂 | Vertical pump |
| 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 |
| CN201288672Y (en) * | 2008-09-25 | 2009-08-12 | 上海凯士比泵有限公司 | Secondary impeller upper disposing type condensation water pump |
| CN201502564U (en) * | 2009-09-03 | 2010-06-09 | 浙江飞旋泵业有限公司 | Condensate pump cartridge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619786A (en) * | 2012-03-27 | 2012-08-01 | 上海阿波罗机械股份有限公司 | Structure for inner cylinder body of containment spray pump |
| CN104005963A (en) * | 2014-05-23 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | Main pump structure for small nuclear power plant |
| CN104033390A (en) * | 2014-06-06 | 2014-09-10 | 西安热工研究院有限公司 | Condensate water pump and condensate water system for turbine set as well as control method for condensate water flow |
| CN104033390B (en) * | 2014-06-06 | 2016-09-14 | 西安热工研究院有限公司 | A kind of Steam Turbine condensate pump and condensate system and condensing water flow control method |
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Application publication date: 20110706 |