CN106403654A - Large-coiler steam generator device with water being fed at upper end - Google Patents
Large-coiler steam generator device with water being fed at upper end Download PDFInfo
- Publication number
- CN106403654A CN106403654A CN201610871943.0A CN201610871943A CN106403654A CN 106403654 A CN106403654 A CN 106403654A CN 201610871943 A CN201610871943 A CN 201610871943A CN 106403654 A CN106403654 A CN 106403654A
- Authority
- CN
- China
- Prior art keywords
- steam generator
- generator device
- feedwater
- steam
- cylinder
- 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.)
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Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
- F22G3/001—Steam tube arrangements not dependent of location
- F22G3/002—Steam tube arrangements not dependent of location with helical steam tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0054—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for nuclear applications
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a large-coiler steam generator device with water being fed at the upper end. The large-coiler steam generator device with the water being fed at the upper end comprises a cylinder, a spiral heat exchange pipe and a vertical straight pipe section. The upper end of the cylinder is fixedly connected with an upper end closure, and the lower end of the cylinder is fixedly connected with a lower end closure. An inner shell is fixedly connected to the inner side wall of the cylinder. A return annular cavity is formed by the inner shell and the inner side of the cylinder. The upper portion of the side wall of the cylinder is provided with a water inlet section. The top of the upper end closure is provided with a steam outlet section. The spiral heat exchange pipe is of a large coiler structure. The upper end of the spiral heat exchange tube is connected with the steam outlet section. The lower end of the spiral heat exchange pipe is connected with the lower end of the vertical straight pipe section. The vertical straight pipe section is located at the center of the spiral heat exchange pipe. The upper end of the vertical straight pipe section is connected with the water inlet section. According to the large-coiler steam generator device with the water being fed at the upper end, the structure is simple, and the heat exchange efficiency is high; the middle space of the large-coiler steam generator device is fully utilized, the length of a preheating portion is increased, and the height of the cylinder is reduced; and in addition, the water inflow amount is controlled through a partition plate, power adjustment of the large-coiler steam generator device with the water being fed at the upper end can be achieved, and operation and maintenance are convenient.
Description
Technical field
The invention belongs to nuclear equipment technical field, especially relate to a kind of steam generator.
Background technology
The arrangement in reactor steam generator main feed water pipe road has two schemes substantially：(1) water-supply scheme under.To steam
When generator is overhauled, admission port is located at and can be unfavorable for overhauling close to reactor core during lower end, and can be healthy to personnel
Threaten.(2) carry water-supply scheme on the middle coil pipe of feedwater header.The program breaks down in steam generator and overhauls biography
During heat pipe, often piece heat-transfer pipe of maintenance needs two pipes of closure at low head feedwater header, and maintenance operation is complicated, and middle coil pipe
The heat exchange unit gap between them of structure is larger, and space availability ratio is not high, and heat exchange efficiency is low.For improving in the middle part of steam generator
Space availability ratio, improves feed-water preheating, realizes power adjustable, facilitates operating maintenance, therefore proposes the structural design scheme of the present invention.
Content of the invention
In view of this, it is contemplated that proposing a kind of big coils steam generator device of upper end feedwater, existing to solve
In technology, equipment volume is larger, low space utilization, the loaded down with trivial details problem of maintenance process.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of big coils steam generator device of upper end feedwater, including cylinder, its upper end is connected with upper cover, and lower end is solid
It is connected to low head, medial wall is connected with inner housing, inner housing and cylinder medial wall form primary Ioops ring cavity；Cylinder lateral wall upper
Portion is provided with water inlet section；The top of upper cover is provided with steam (vapor) outlet section；Spiral heat exchange tube, it adopts deep bid tubular construction, and upper end
It is connected with steam (vapor) outlet section, lower end is connected with the lower end of vertical straight length；Vertical straight length, it is located at the center of spiral heat exchange tube
Position, and upper end is connected with water inlet section.
Further, it is connected with feed-water inlet tube sheet in described water inlet section, be evenly distributed with some inlet openings thereon；Feedwater
It is additionally provided with demarcation strip, if inlet opening is separated into stem portion by demarcation strip on import tube sheet.
Further, inlet opening is separated into the equal two parts of quantity by described demarcation strip.
Further, it is connected with steam (vapor) outlet tube sheet in described steam (vapor) outlet section, be evenly distributed with some steam holes thereon.
Further, described spiral heat exchange tube and vertical straight length are respectively the tube bank that some pipelines are formed, and respectively with institute
State steam hole corresponding with described inlet opening.
Further, the tubular construction that inner barrel described in described water inlet Duan Weixiang extends, its end passes through described inner housing,
And be connected with described vertical straight length by the connection tube bank affixed with described feed-water inlet tube sheet；Connect tube bank to include and feedwater
The affixed feedwater straight length of import tube sheet and the feedwater bend loss being connected with vertical straight length.
Further, described vertical straight length is connected with described spiral heat exchange tube by U-tube bundle, and U-tube bundle passes through big pipe
Plate is fixed in described cylinder.
Further, the upper end of described spiral heat exchange tube is affixed with described steam (vapor) outlet tube sheet by top connection tube bank.
With respect to prior art, the big coils steam generator device feeding water in upper end of the present invention has following excellent
Gesture：
The big coils steam generator device of upper end of the present invention feedwater, structure is simple, and heat exchange efficiency is high.Spiral changes
Heat pipe adopts deep bid tubular construction, overcomes utilization rate not high defect in gap between middle coil arrangement heat exchanging unit, from structure
On improve heat exchange.By being arranged at the vertical straight length of spiral heat exchange tube center, make full use of the central space of the present invention,
Increase regenerator section length, reduce the height of cylinder.Additionally, inflow is controlled by demarcation strip, it is capable of the work(of the present invention
Rate is adjusted, and O＆M is easy to operate.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the main view of the big coils steam generator device of upper end feedwater described in the embodiment of the present invention to sectional view；
Fig. 2 is the feed-water inlet tube sheet of big coils steam generator device of the upper end feedwater described in the embodiment of the present invention
Left view；
Fig. 3 is the steam (vapor) outlet tube sheet of big coils steam generator device of the upper end feedwater described in the embodiment of the present invention
Top view.
Description of reference numerals：
1- cylinder；11- inner housing；12- primary Ioops ring cavity；13- water inlet section；14- upper cover；141- steam (vapor) outlet section；
15- low head；2- steam (vapor) outlet tube sheet；21- steam hole；3- feed-water inlet tube sheet；31- inlet opening；32- demarcation strip；4- is vertical
Straight length；41- feedwater bend loss；42- feedwater straight length；43-U shape is restrained；5- large tubesheet；6- spiral heat exchange tube；61- top is even
Adapter bundle.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The big coils steam generator device feeding water as Fig. 1-3, a kind of upper end of present invention proposition, including cylinder 1, its upper end
It is connected with upper cover 14, lower end is connected with low head 15, medial wall is connected with inner housing 11, inside inner housing 11 and cylinder 1
Wall forms primary Ioops ring cavity 12；The top of cylinder 1 side wall is provided with water inlet section 13；The top of upper cover 14 is provided with steam (vapor) outlet section
141；Spiral heat exchange tube 6, it adopts deep bid tubular construction, and upper end is connected with steam (vapor) outlet section 141, lower end and vertical straight length 4
Lower end connect；Vertical straight length 4, it is located at the center of spiral heat exchange tube 6, and upper end is connected with water inlet section 13.
Deep bid tubular construction is with respect to middle coil arrangement, less in heat exchange efficiency identical situation lower volume, can be effectively
Reduce the volume of cylinder 1.
Hot medium (coolant) from reactor core is entered into by pipeline in primary Ioops ring cavity 12, as the present invention
Thermal source.
It is connected with feed-water inlet tube sheet 3 in above-mentioned water inlet section 13, be evenly distributed with some inlet openings 31 thereon；Feed water into
It is additionally provided with demarcation strip 32, if inlet opening 31 is separated into stem portion by demarcation strip 32 on mouth tube sheet 3.Above-mentioned demarcation strip 32 is by inlet opening
31 are separated into the equal two parts of quantity.By blocking to one of them of above-mentioned two parts inlet opening 31, can achieve this
Invent the Power operation of 50% load, if not blocking, steam generator is with fully loaded Power operation.
It is connected with steam (vapor) outlet tube sheet 2 in above-mentioned steam (vapor) outlet section 141, be evenly distributed with some steam holes 21 thereon.
Above-mentioned spiral heat exchange tube 6 and vertical straight length 4 are respectively the tube bank that some pipelines are formed, and respectively with above-mentioned steam
Hole 21 and above-mentioned inlet opening 31 are corresponding.Pipe bundle structure increases effective heat exchange area, is favorably improved the heat exchange effect of the present invention
Rate.
Above-mentioned water inlet section 13 is the tubular construction extending to the inside of above-mentioned cylinder 1, and its end passes through above-mentioned inner housing 11, and
It is connected with above-mentioned vertical straight length 4 by the connection tube bank affixed with above-mentioned feed-water inlet tube sheet 3；Connect tube bank to include and feedwater
The affixed feedwater straight length 42 of import tube sheet 3 and the feedwater bend loss 41 being connected with vertical straight length 4.
Above-mentioned vertical straight length 4 is connected with above-mentioned spiral heat exchange tube 6 by U-tube bundle 43, and U-tube bundle 43 passes through large tubesheet
5 are fixed in above-mentioned cylinder 1.Vertical straight length 4, U-tube bundle 43 and spiral heat exchange tube 6 are to be welded to connect, and cancel original
Feedwater header, it is simpler to enable to plugging process, is easy to operate.
It is affixed with above-mentioned steam (vapor) outlet tube sheet 2 that the upper end of above-mentioned spiral heat exchange tube 6 connects tube bank 61 by top.
During use, pass sequentially through feed-water inlet tube sheet 3 He in water inlet section 13 from the water of the main feed system of power plant
Connect tube bank to enter in vertical straight length 4.Water in vertical straight length 4 is carried out by the hot medium in primary Ioops ring cavity 12
Preheating heating.Afterwards, the water after preheating is entered in spiral heat exchange tube 6 by U-tube bundle 43, and absorbs heat in uphill process
The heat of state Medium Propagation is changed into superheated steam.Superheated steam passes sequentially through top and connects tube bank 61 and steam (vapor) outlet tube sheet 2 row
Go out, enter in steam turbine by main steam system, driving steam turbine is done manual work, drive electrical power generators.
The present invention break down need plugging when it is only necessary to enter to feed-water inlet tube sheet 3 and steam (vapor) outlet tube sheet 2 two parts
Row blocks, and simplifies maintenance operation, safe and reliable.
The big coils steam generator device of the above-mentioned upper end feedwater of the present invention, structure is simple, and heat exchange efficiency is high.Spiral changes
Heat pipe 6 adopts deep bid tubular construction, overcomes utilization rate not high defect in gap between middle coil arrangement heat exchanging unit, from structure
On improve heat exchange.By being arranged at the vertical straight length 4 of spiral heat exchange tube 6 center, the middle part making full use of the present invention is empty
Between, increase regenerator section length, reduce the height of cylinder 1.Additionally, inflow is controlled by demarcation strip 32, it is capable of this
Bright power adjustments, O＆M is easy to operate.
The present invention is applied not only on the steam generator of nuclear reactor, can also use the occasion in other heat exchange, such as
On the heat exchange heat-transfer equipment of thermal power generation system or chemical industry.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of big coils steam generator device of upper end feedwater is it is characterised in that include：
Cylinder (1), its upper end is connected with upper cover (14), and lower end is connected with low head (15), and medial wall is connected with inner housing
(11), inner housing (11) and cylinder (1) medial wall form primary Ioops ring cavity (12)；The top of cylinder (1) side wall is provided with water inlet
Section (13)；The top of upper cover (14) is provided with steam (vapor) outlet section (141)；
Spiral heat exchange tube (6), it adopts deep bid tubular construction, and upper end is connected with steam (vapor) outlet section (141), lower end and vertical straight tube
The lower end of section (4) connects；
Vertical straight length (4), it is located at the center of spiral heat exchange tube (6), and upper end is connected with water inlet section (13).
2. upper end according to claim 1 feedwater big coils steam generator device it is characterised in that：Described water inlet
It is connected with feed-water inlet tube sheet (3) in section (13), be evenly distributed with some inlet openings (31) thereon；On feed-water inlet tube sheet (3)
It is additionally provided with demarcation strip (32), demarcation strip (32) is by inlet opening (31) if being separated into stem portion.
3. upper end according to claim 2 feedwater big coils steam generator device it is characterised in that：Described demarcation strip
(32) inlet opening (31) are separated into the equal two parts of quantity.
4. upper end according to claim 2 feedwater big coils steam generator device it is characterised in that：Described steam goes out
It is connected with steam (vapor) outlet tube sheet (2) in mouth section (141), be evenly distributed with some steam holes (21) thereon.
5. upper end according to claim 4 feedwater big coils steam generator device it is characterised in that：Described spiral changes
Heat pipe (6) and vertical straight length (4) are respectively the tube bank that some pipelines are formed, and respectively with described steam hole (21) and described enter
Water hole (31) is corresponding.
6. upper end according to claim 5 feedwater big coils steam generator device it is characterised in that：Described water inlet
Section (13) is the tubular construction extending to the inside of described cylinder (1), and its end passes through described inner housing (11), and by giving with described
The affixed connection tube bank of water inlet tube sheet (3) is connected with described vertical straight length (4)；Connect tube bank to include and feed-water inlet tube sheet
(3) affixed feedwater straight length (42) and the feedwater bend loss (41) being connected with vertical straight length (4).
7. upper end according to claim 5 feedwater big coils steam generator device it is characterised in that：Described vertically straight
Pipeline section (4) is connected with described spiral heat exchange tube (6) by U-tube bundle (43), and U-tube bundle (43) is fixed on by large tubesheet (5)
In described cylinder (1).
8. upper end according to claim 5 feedwater big coils steam generator device it is characterised in that：Described spiral changes
It is affixed with described steam (vapor) outlet tube sheet (2) that the upper end of heat pipe (6) connects tube bank (61) by top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871943.0A CN106403654B (en) | 2016-09-30 | 2016-09-30 | Large coil pipe steam generator device with upper end supplying water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871943.0A CN106403654B (en) | 2016-09-30 | 2016-09-30 | Large coil pipe steam generator device with upper end supplying water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106403654A true CN106403654A (en) | 2017-02-15 |
| CN106403654B CN106403654B (en) | 2019-12-20 |
Family
ID=59228874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610871943.0A Active CN106403654B (en) | 2016-09-30 | 2016-09-30 | Large coil pipe steam generator device with upper end supplying water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106403654B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785084A (en) * | 2017-07-31 | 2018-03-09 | 清华大学天津高端装备研究院 | A kind of integrated cold containers type reactor of self-pressurization type |
| CN113432454A (en) * | 2021-07-14 | 2021-09-24 | 哈尔滨锅炉厂有限责任公司 | Non-circular cross-section double-tube-pass spiral heat exchanger tube bundle structure |
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| US3513908A (en) * | 1967-08-18 | 1970-05-26 | Guru B Singh | Embedded tube heat exchanger |
| CN2416421Y (en) * | 2000-05-08 | 2001-01-24 | 张新民 | Air heating water heater |
| CN201575449U (en) * | 2009-12-25 | 2010-09-08 | 华北电力大学 | Improved lower end socket of steam generator of pressurized water reactor nuclear power station |
| CN203908369U (en) * | 2014-05-30 | 2014-10-29 | 江胜坤 | Immersion type heat exchanger |
| CN204115503U (en) * | 2014-07-25 | 2015-01-21 | 磐石生命科技（青岛）股份有限公司 | Just putting vertical syllogic high-pressure spiral heat exchange of heat pipe |
| CN204637690U (en) * | 2015-04-23 | 2015-09-16 | 浙江警安科技有限公司 | Filter tank automatic fitration control system |
| CN206235196U (en) * | 2016-09-30 | 2017-06-09 | 清华大学天津高端装备研究院 | A kind of big coils steam generator device of upper end feedwater |
-
2016
- 2016-09-30 CN CN201610871943.0A patent/CN106403654B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513908A (en) * | 1967-08-18 | 1970-05-26 | Guru B Singh | Embedded tube heat exchanger |
| CN2416421Y (en) * | 2000-05-08 | 2001-01-24 | 张新民 | Air heating water heater |
| CN201575449U (en) * | 2009-12-25 | 2010-09-08 | 华北电力大学 | Improved lower end socket of steam generator of pressurized water reactor nuclear power station |
| CN203908369U (en) * | 2014-05-30 | 2014-10-29 | 江胜坤 | Immersion type heat exchanger |
| CN204115503U (en) * | 2014-07-25 | 2015-01-21 | 磐石生命科技（青岛）股份有限公司 | Just putting vertical syllogic high-pressure spiral heat exchange of heat pipe |
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| CN206235196U (en) * | 2016-09-30 | 2017-06-09 | 清华大学天津高端装备研究院 | A kind of big coils steam generator device of upper end feedwater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785084A (en) * | 2017-07-31 | 2018-03-09 | 清华大学天津高端装备研究院 | A kind of integrated cold containers type reactor of self-pressurization type |
| CN107785084B (en) * | 2017-07-31 | 2023-10-27 | 清华大学天津高端装备研究院 | Self-pressurization type integrated cold vessel type reactor |
| CN113432454A (en) * | 2021-07-14 | 2021-09-24 | 哈尔滨锅炉厂有限责任公司 | Non-circular cross-section double-tube-pass spiral heat exchanger tube bundle structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106403654B (en) | 2019-12-20 |
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Inventor after: Ye Liang Inventor after: Zhao Yueyang Inventor after: Liu Yongkang Inventor after: Yang Jue Inventor after: Liu Zhibin Inventor after: Zhang Chao Inventor after: Liu Qingsong Inventor after: Lu Guangyao Inventor after: Li Cheng Inventor after: Tang Shujian Inventor after: Zhou Jianming Inventor after: Yuan Jie Inventor after: Rui Min Inventor after: Zhou Guofeng Inventor before: Sheng Xuanyu Inventor before: Kong Wenwen Inventor before: Sun Jiaqi Inventor before: Wang Xinlei Inventor before: Cheng Yumin Inventor before: Ling Chen Inventor before: Yin Jiaomei Inventor before: Xu Yachen Inventor before: Yin Shicong Inventor before: Guo Bao Inventor before: Wang Liangjun Inventor before: Ge Yungui Inventor before: Shao Rong Inventor before: Liu Chuan Inventor before: Zhang Zhiqing |
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Effective date of registration: 20170928 Address after: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building, 15 Floor Applicant after: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE Address before: 300300 Dongli Lake Resort, Dongli District, Tianjin Applicant before: TSINGHUA UNIVERSITY TIANJIN HIGH-END EQUIPMENT RESEARCH INSTITUTE |
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