CN201897210U - Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit - Google Patents
Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit Download PDFInfo
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- CN201897210U CN201897210U CN 201020614136 CN201020614136U CN201897210U CN 201897210 U CN201897210 U CN 201897210U CN 201020614136 CN201020614136 CN 201020614136 CN 201020614136 U CN201020614136 U CN 201020614136U CN 201897210 U CN201897210 U CN 201897210U
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Abstract
The utility model relates to an upright vertical U-shaped tube high pressure heater of a nuclear power 200MW unit. In recent years, for the purposes of energy-saving and emission-reduction, the government rapidly develops the application of new energy sources, and nuclear power is greatly improved. The upright vertical U-shpaed tube high pressure heater of the nuclear power 200MW unit comprises a housing (3), wherein the housing is connected with a water chamber (1) through a tube sheet (2); a superheated steam cooling section (4), a coagulating section (5) and a drain cooling section (6) are sequentially connected with the lower end of the tube sheet; U-shaped heat exchange tubes are mounted in all the drain cooling section, the superheated steam cooling section and the coagulating section respectively; and one end of the drain cooling section is connected with a drain outlet connection tube (9). The high pressure heater is used for the nuclear power 200MW unit.
Description
Technical field:
The utility model relates to a kind of high-pressure heater that is used for the 200MW of nuclear power plant unit; Be specifically related to a kind of nuclear power 200MW unit and just putting the vertical U-tube high-pressure heater.
Background technology:
In recent years, country greatly develops the application of new forms of energy for energy-saving and emission-reduction, and nuclear power has also obtained great development.Domestic nuclear power station major part all is to introduce the third generation of ripe use experience nuclear power technology is arranged abroad at present; And abroad, begun for the 4th generation nuclear power technology research, in order to accelerate the nuclear power technology autonomy-oriented, China also begun to the 4th generation nuclear power technology research, and carry out the trial run of little unit.
High-pressure heater is one of most important equipment in the heat regenerative system of power station, its safety and economic operation, operational reliability and economy to power plant also play important effect, the high-pressure heater of present large-scale unit all adopts horizontal layout, but the floor space of horizontal layout high-pressure heater is big, is difficult for arranging.Present upright syllogic high-pressure heater adopts traditional symmetrical stringing, at superheat section the steam short circuit is arranged, and diameter of the housing is bigger, Heavy Weight, cost height.
Summary of the invention:
The purpose of this utility model provides a kind of nuclear power 200MW unit and is just putting the vertical U-tube high-pressure heater, be applied in this high-pressure heater on the 4th generation nuclear power Shidao Bay engineering, be that a kind of floor space is little, the syllogic heater that is easy to arrange, prevent the steam short circuit, reduce diameter of the housing, reduce the equipment weight metal.
Above-mentioned purpose realizes by following technical scheme:
Nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, its composition comprises: housing, described housing connects hydroecium by tube sheet, described tube sheet lower end connects superheated steam cooling section, the section of condensing, hydrophobic cooling section in turn, described hydrophobic cooling section and described superheated steam cooling section and the described Duan Zhongjun of condensing are equipped with the U-shaped heat exchanger tube, described superheated steam cooling section one end connects steam inlet to be taken over, and an end of described hydrophobic cooling section connects hydrophobic discharge connection.
Described nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, described U-shaped heat exchanger tube internal layer adopts the U-shaped pipe, described hydrophobic cooling section comprises outer pipe and internal layer pipe, and the tube bank of the tube bank of described outer pipe and described internal layer pipe is eccentric installs.
Described nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, described superheated steam cooling section comprises the superheat section involucrum, crosses section section dividing plate and U-shaped heat exchanger tube, the described section of condensing comprises the section of condensing dividing plate and U-shaped heat exchanger tube, described hydrophobic cooling section comprises hydrophobic section dividing plate, hydrophobic section involucrum and U-shaped pipe, and described U-shaped pipe passes hydrophobic section dividing plate, superheat section dividing plate and the section of condensing dividing plate respectively.
Described nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, described hydroecium comprises ellipse head, described ellipse head connects stack shell, and pressure self sealss manhole is equipped with at described ellipse head top, and described stack shell bilateral symmetry is equipped with feed-water inlet nozzle and feedwater discharge connection.
Beneficial effect:
1. the arrangement of U-shaped heat exchanger tube of the present utility model is two kinds of patterns, is respectively the internal layer heat exchanger tube and passes superheated steam cooling section involucrum, but do not pass hydrophobic cooling section; Perhaps the U-shaped heat exchanger tube adopts span centre symmetric arrangement in housing, and outer heat exchanger tube passes hydrophobic cooling section and superheated steam cooling section simultaneously; In housing span centre asymmetric arrange mode, thereby make heat exchanger tube at superheat section for arranging continuously, and densely covered continuously in the dividing plate perforate of tube sheet and the superheat section dividing plate and the section of condensing, do not have the generation of short circuit phenomenon, improved the thermal efficiency.Described steam enters superheat section from the steam connection inlet, in superheat section, carry out the following current heat release, by rational calculating, selected only dividing plate at interval, make steam stable flowing in superheat section, flow into the section of condensing from involucrum outlet at last, be condensed into hydrophobic in the section of condensing near tube sheet, by siphonage, the hydrophobic cooling section of hydrophobic process is discharged height add housing at last.
2. the utility model adopts the high-pressure heater of just putting vertical three stage structure, and floor space is little, has saved the factory building arrangement areas of power plant, greatly reduces the investment of power plant.
3. the utility model is that arranged off-centre is adopted in tube bank, avoids the short circuit of superheat section steam, has improved the heat exchange efficiency of high-pressure heater, has reduced diameter of the housing, has reduced the weight metal of equipment.
Description of drawings:
Accompanying drawing 1 structural representation of the present utility model.
Accompanying drawing 2 is that the U-shaped pipe of tube sheet in the accompanying drawing 1 is distributed hole pattern.
Accompanying drawing 3 is superheated steam cooling section structure charts of accompanying drawing 1.
The specific embodiment:
Embodiment 1:
A kind of nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, its composition comprises: housing 3, described housing 3 connects hydroecium 1 by tube sheet 2, described tube sheet lower end connects superheated steam cooling section 4, the section of condensing 5, hydrophobic cooling section 6 in turn, in described hydrophobic cooling section 6 and described superheated steam cooling section 4 and the described section of condensing 5 U-shaped heat exchanger tube 7 is housed all, described superheated steam cooling section one end connects steam inlet and takes over 8, and an end of described hydrophobic cooling section connects hydrophobic discharge connection 9.
Embodiment 2:
Embodiment 1 described nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, described hydroecium 1 comprises ellipse head 13, described ellipse head 13 connects stack shell 14, pressure self sealss manhole 10 is equipped with at described ellipse head top, and described stack shell 14 bilateral symmetry are equipped with feed-water inlet nozzle 11 and feedwater discharge connection 12.
Embodiment 3:
Embodiment 4:
The described nuclear power 200MW of the above embodiments unit is just being put the vertical U-tube high-pressure heater, described U-shaped heat exchanger tube internal layer adopts the U-shaped pipe, the tube bank of described U-shaped pipe is installed with described tube sheet is concentric, described hydrophobic cooling section comprises outer pipe 20 and internal layer pipe 21, and the eccentric state of the centre of form of the tube bank of described outer pipe and the tube bank of described internal layer pipe is installed.
Claims (5)
1. a nuclear power 200MW unit is just being put the vertical U-tube high-pressure heater, its composition comprises: housing, it is characterized in that: described housing connects hydroecium by tube sheet, described tube sheet lower end connects superheated steam cooling section, the section of condensing, hydrophobic cooling section in turn, described hydrophobic cooling section and described superheated steam cooling section and the described Duan Zhongjun of condensing are equipped with the U-shaped heat exchanger tube, described superheated steam cooling section one end connects steam inlet to be taken over, and an end of described hydrophobic cooling section connects hydrophobic discharge connection.
2. nuclear power 200MW unit according to claim 1 is just being put the vertical U-tube high-pressure heater, it is characterized in that: described U-shaped heat exchanger tube internal layer adopts the U-shaped pipe, described hydrophobic cooling section comprises outer pipe and internal layer pipe, and the tube bank of the tube bank of described outer pipe and described internal layer pipe is eccentric installs.
3. nuclear power 200MW unit according to claim 1 and 2 is just being put the vertical U-tube high-pressure heater, it is characterized in that: described superheated steam cooling section comprises the superheat section involucrum, crosses section section dividing plate and U-shaped heat exchanger tube, the described section of condensing comprises the section of condensing dividing plate and U-shaped heat exchanger tube, described hydrophobic cooling section comprises hydrophobic section dividing plate, hydrophobic section involucrum and U-shaped pipe, and described U-shaped pipe passes hydrophobic section dividing plate, superheat section dividing plate and the section of condensing dividing plate respectively; The internal layer heat exchanger tube passes superheated steam cooling section involucrum, but does not pass hydrophobic cooling or adopt span centre symmetric arrangement in housing, and outer heat exchanger tube passes hydrophobic cooling section and superheated steam cooling section simultaneously.
4. nuclear power 200MW unit according to claim 1 and 2 is just being put the vertical U-tube high-pressure heater, it is characterized in that: described hydroecium comprises ellipse head, described ellipse head connects stack shell, pressure self sealss manhole is equipped with at described ellipse head top, and described stack shell bilateral symmetry is equipped with feed-water inlet nozzle and feedwater discharge connection.
5. nuclear power 200MW unit according to claim 3 is just being put the vertical U-tube high-pressure heater, it is characterized in that: described hydroecium comprises ellipse head, described ellipse head connects stack shell, pressure self sealss manhole is equipped with at described ellipse head top, and described stack shell bilateral symmetry is equipped with feed-water inlet nozzle and feedwater discharge connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020614136 CN201897210U (en) | 2010-11-18 | 2010-11-18 | Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020614136 CN201897210U (en) | 2010-11-18 | 2010-11-18 | Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897210U true CN201897210U (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020614136 Expired - Lifetime CN201897210U (en) | 2010-11-18 | 2010-11-18 | Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201897210U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434874A (en) * | 2011-12-15 | 2012-05-02 | 哈尔滨锅炉厂有限责任公司 | Nuclear power horizontal high-pressure water supply heater and heating method |
| CN102537932A (en) * | 2011-12-31 | 2012-07-04 | 哈尔滨锅炉厂有限责任公司 | 200 MW (Mega Watt) small bypass horizontal U-shaped pipe high-voltage feed water heater and heating method |
| CN102563606A (en) * | 2012-02-29 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | Hinged manhole cover of high-pressure feed-water heater |
-
2010
- 2010-11-18 CN CN 201020614136 patent/CN201897210U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434874A (en) * | 2011-12-15 | 2012-05-02 | 哈尔滨锅炉厂有限责任公司 | Nuclear power horizontal high-pressure water supply heater and heating method |
| CN102434874B (en) * | 2011-12-15 | 2015-06-24 | 哈尔滨锅炉厂有限责任公司 | Nuclear power horizontal high-pressure water supply heater and heating method |
| CN102537932A (en) * | 2011-12-31 | 2012-07-04 | 哈尔滨锅炉厂有限责任公司 | 200 MW (Mega Watt) small bypass horizontal U-shaped pipe high-voltage feed water heater and heating method |
| CN102563606A (en) * | 2012-02-29 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | Hinged manhole cover of high-pressure feed-water heater |
| CN102563606B (en) * | 2012-02-29 | 2015-09-09 | 哈尔滨锅炉厂有限责任公司 | Hinged manhole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110713 |
|
| CX01 | Expiry of patent term |