CN206234798U - A kind of steam generator of side feedwater - Google Patents
A kind of steam generator of side feedwater Download PDFInfo
- Publication number
- CN206234798U CN206234798U CN201621098992.7U CN201621098992U CN206234798U CN 206234798 U CN206234798 U CN 206234798U CN 201621098992 U CN201621098992 U CN 201621098992U CN 206234798 U CN206234798 U CN 206234798U
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- Prior art keywords
- tube
- steam
- feedwater
- steam generator
- vapor
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Abstract
The utility model provides a kind of steam generator of side feedwater, including cylinder, spiral coil and feed pipe are restrained, cylinder top is provided with upper cover, bottom is provided with low head, steam (vapor) outlet is provided with upper cover, steam (vapor) outlet is provided with steam (vapor) outlet tube sheet, two admission ports are provided with the side wall on cylinder top, feedwater flange is provided with admission port, feedwater flange and feedwater Tube-sheet Welding, feed pipe restrains one end with feedwater Tube-sheet Welding, the other end is bent to form downwards the tube bank of feed pipe straight tube, the tube bank of feed pipe straight tube is connected by being bent into bending tube behind cylinder middle part with spiral coil, spiral coil is upwardly extended, and be connected on steam (vapor) outlet tube sheet by connecting tube.This steam generator can not only effectively improve the utilization rate and compactedness in steam generator space, strengthen the controllability of steam generator power, can also reduce plugging operation difficulty, reduce inspection operation personnel's raying dosage, the security of personnel when improving maintenance.
Description
Technical field
The utility model belongs to nuclear equipment technical field, more particularly, to a kind of steam generator of side feedwater.
Background technology
Nuclear reaction steam generator major function is that the water of secondary circuit is flowed through into steam generator, by the heat of primary Ioops hot water
Amount is delivered in secondary circuit, forms superheated steam.The arrangement in nuclear reactor once through steam generator main feed water pipe road has two substantially
The scheme of kind：(1) water-supply scheme under.(2) with water-supply scheme on the middle coil pipe to water manifold.Currently for once through steam generator
The design of waterworks, has that space availability ratio is high, plugging maintenance is complicated, maintainer's raying dosage is big, steam hair
The problem of raw device power adjustable section difference.Because the equipment requirement reliability that reactor is used is high, therefore design a maintenance side
Just the steam generator that, reliability is high, security is good is a problem demanding prompt solution.
Utility model content
In view of this, the utility model is directed to a kind of steam generator of side feedwater, can effectively improve steam
The space availability ratio of generator, reduction plugging maintenance difficulty, reduction inspection operation personnel's raying dosage, enhancing steam generator
The controllability of power.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of steam generator of side feedwater, including the tube bank of cylinder, upper cover, low head, spiral coil and feed pipe,
The top of the cylinder is provided with the upper cover, and bottom is provided with the low head, and steam (vapor) outlet, institute are provided with the upper cover
State steam (vapor) outlet and be provided with steam (vapor) outlet tube sheet, two admission ports are provided with the side wall on the cylinder top, in the feedwater
Mouth is provided with feedwater flange, and the feedwater flange restrains one end with the feedwater tube sheet with feedwater Tube-sheet Welding, the feed pipe
Welding, the other end is bent to form downwards the tube bank of feed pipe straight tube, and the feed pipe straight tube tube bank is bent into by behind cylinder middle part
Bending tube is connected with the spiral coil, and the spiral coil is upwardly extended, and is connected to the steam (vapor) outlet by connecting tube
On tube sheet.
Further, the spiral coil is centered around around the feed pipe straight tube tube bank, by the tube bank of feed pipe straight tube
Parcel.
Further, described two admission ports are spaced 180 ° and are horizontally disposed with.
Further, the feedwater flange is integrally formed with cylinder.
Further, the bending tube is semicircle bending tube.
Further, the connecting tube and spiral coil and steam (vapor) outlet Tube-sheet Welding.
Further, the steam (vapor) outlet tube sheet is located at the surface of cylinder.
Further, in feed pipe tube bank, spiral coil and connecting tube, each pipe all connects one to one,
Form several complete paths.When tube wall rupture needs plugging, it is only necessary at feedwater tube sheet and steam (vapor) outlet tube sheet,
The two ends of pipe are blocked, so that it may complete plugging operation, need not both open steam generator, it is not required that personnel to dose of radiation
Steam generator lower section very high carries out plugging operation.
Relative to prior art, the steam generator of side feedwater described in the utility model has following advantage：
(1) by set two feedwater tube sheets, when steam generator needs half-power to run, it is only necessary to stop one to
The feedwater at the mouth of a river is to be capable of achieving, and so as to increased the power adjustable scope of steam generator, enhances steam generator power
Controllability.Meanwhile, two admission ports are compared to an admission port, and the quantity for connecting tube bank halves, and tube sheet diameter reduces, drop
Low processing and manufacturing and the difficulty of assembling.
(2) feed pipe passes through cylinder in the form of restraining, and is passed through rather than with an extra heavy pipe, the straight tube pipe of such feed pipe
Beam part may also participate in heat exchange, improve the space availability ratio of steam generator so that steam generator internal structure is more stepped up
Gather.At the same time it can also allow the integral replacing of steam generator core body.
(3) when tube wall rupture needs plugging, it is only necessary at feedwater tube sheet and steam (vapor) outlet tube sheet, by the two ends of pipe
Block, so that it may complete plugging operation, need not both open the pressure vessel of steam generator, it is not required that personnel to dose of radiation
Steam generator lower section very high carries out plugging operation, reduces the maintenance difficulty of steam generator, personnel when improving maintenance
Security.
Brief description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing being further understood to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of feedwater tube sheet in the utility model；
Fig. 3 is the top view in the utility model to steam (vapor) outlet tube sheet；
Fig. 4 is secondary circuit schematic flow sheet of the present utility model.
Description of reference numerals：
1- admission ports；2- feedwater tube sheets；3- cylinders；4- feed pipes are restrained；5- feed pipes straight tube is restrained；6- spiral coils；
7- connecting tubes；8- steam (vapor) outlet tube sheets；9- upper covers；10- low heads；11- bending tubes.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of steam generator of side feedwater, including cylinder 3, upper cover 9, low head 10, spiral coil 6 and feed pipe
Tube bank 4, the top of the cylinder 3 is provided with the upper cover 9, and bottom is provided with the low head 10, is provided with the upper cover 9
Steam (vapor) outlet, the steam (vapor) outlet is provided with steam (vapor) outlet tube sheet 8, and the steam (vapor) outlet tube sheet 8 is located at the surface of cylinder 3,
Two admission ports 1 are provided with the side wall on the top of the cylinder 3, described two admission ports 1 are spaced 180 ° and are horizontally disposed with, described
Admission port 1 is provided with feedwater flange, and the feedwater flange is integrally formed with cylinder 3, and the feedwater flange is welded with feedwater tube sheet 2
Connect, the feed pipe is restrained 4 one end and welded with the feedwater tube sheet 2, and the other end is bent to form downwards feed pipe straight tube tube bank 5,
The feed pipe straight tube tube bank 5 is connected by being bent into bending tube 11 behind the middle part of cylinder 3 with the spiral coil 6, the bending
Pipe 11 is semicircle bending tube, and the spiral coil 6 is upwardly extended, and is connected to the steam (vapor) outlet tube sheet 8 by connecting tube 7
On, the connecting tube 7 is welded with spiral coil 6 and steam (vapor) outlet tube sheet 8, and it is straight that the spiral coil 6 is centered around the feed pipe
Around pipe tube bank 5, feed pipe straight tube tube bank 5 is wrapped up, in the feed pipe restrains 4, spiral coil 6 and connecting tube 7, often
A piece pipe all connects one to one, and forms several complete paths.When tube wall rupture needs plugging, it is only necessary in feed pipe
At plate 2 and steam (vapor) outlet tube sheet 8, the two ends of pipe are blocked, so that it may complete plugging operation, need not both open steam generation
Device, it is not required that personnel to dose of radiation steam generator lower section very high carries out plugging operation.
The course of work of this example：Secondary circuit feedwater enters feed pipe by two admission ports 1 on steam generator top
Tube bank 4, feed pipe tube bank 4 is bent to form downwards feed pipe straight tube tube bank 5, from the feed pipe that the two feedwater tube sheets 2 in left and right stretch out
Tube bank 4 is evenly distributed in cylinder 3, it is ensured that in the operation of steam generator half-power, when single admission port 1 is fed water, thermal stress is most
Small, heat exchange is evenly.Feed pipe tube bank 4 in cylinder 3, is surrounded by the hot water of primary Ioops, and the water of secondary circuit flows through feed pipe pipe
Exchanged heat during beam 4, feed pipe restrains 4 by behind the center of cylinder 2, being bent into semicircle bending tube 11, with corresponding helical disk
Pipe 6 is welded.Spiral coil 6 is spiraled rising, the hot water of the outside full of primary Ioops of spiral coil 6, therefore the water of secondary circuit is flowed through
During spiral coil 6, can further be exchanged heat, the upper end of spiral coil 6 is connected on steam (vapor) outlet tube sheet 8 by connecting tube 7,
Steam is discharged.
The utility model can be not only used on the steam generator of nuclear reactor, can also use in other similar heat
The occasion that can be transmitted, such as in the heat exchange of thermal power generation system or chemical industry or heat-transfer equipment.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (8)
1. the steam generator that a kind of side is fed water, it is characterised in that：Including cylinder, upper cover, low head, spiral coil and give
Water pipe is restrained, and the top of the cylinder is provided with the upper cover, and bottom is provided with the low head, and steaming is provided with the upper cover
Vapor outlet, the steam (vapor) outlet is provided with steam (vapor) outlet tube sheet, and two admission ports are provided with the side wall on the cylinder top,
The admission port is provided with feedwater flange, the feedwater flange and feedwater Tube-sheet Welding, the feed pipe restrain one end with it is described
Feedwater Tube-sheet Welding, the other end is bent to form downwards the tube bank of feed pipe straight tube, and the feed pipe straight tube tube bank is by cylinder middle part
After be bent into bending tube and be connected with the spiral coil, the spiral coil is upwardly extended, and is connected to by connecting tube described
On steam (vapor) outlet tube sheet.
2. the steam generator that a kind of side according to claim 1 is fed water, it is characterised in that：The spiral coil around
Around feed pipe straight tube tube bank, feed pipe straight tube is restrained and is wrapped up.
3. the steam generator that a kind of side according to claim 1 and 2 is fed water, it is characterised in that：Described two feedwater
180 ° of mouth interval is horizontally disposed with.
4. the steam generator that a kind of side according to claim 3 is fed water, it is characterised in that：In the feed pipe pipe
In beam, spiral coil and connecting tube, each pipe all connects one to one, and forms several complete paths.
5. the steam generator that a kind of side according to claim 1 is fed water, it is characterised in that：Feedwater flange and the cylinder
Body by integral forming.
6. the steam generator that a kind of side according to claim 1 is fed water, it is characterised in that：The bending tube is semicircle
Shape bending tube.
7. the steam generator that a kind of side according to claim 1 is fed water, it is characterised in that：The connecting tube and spiral
Coil pipe and steam (vapor) outlet Tube-sheet Welding.
8. the steam generator that a kind of side according to claim 1 is fed water, it is characterised in that：The steam (vapor) outlet tube sheet
Positioned at the surface of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098992.7U CN206234798U (en) | 2016-09-30 | 2016-09-30 | A kind of steam generator of side feedwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098992.7U CN206234798U (en) | 2016-09-30 | 2016-09-30 | A kind of steam generator of side feedwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234798U true CN206234798U (en) | 2017-06-09 |
Family
ID=58981955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621098992.7U Withdrawn - After Issue CN206234798U (en) | 2016-09-30 | 2016-09-30 | A kind of steam generator of side feedwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322338A (en) * | 2016-09-30 | 2017-01-11 | 清华大学天津高端装备研究院 | Steam generator with side water supply function |
| 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 |
-
2016
- 2016-09-30 CN CN201621098992.7U patent/CN206234798U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322338A (en) * | 2016-09-30 | 2017-01-11 | 清华大学天津高端装备研究院 | Steam generator with side water supply function |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
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 |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170930 Address after: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building, 15 Floor Patentee after: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE Address before: 300300 Dongli Lake Resort, Dongli District, Tianjin Patentee before: TSINGHUA UNIVERSITY TIANJIN HIGH-END EQUIPMENT RESEARCH INSTITUTE |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20181030 |
|
| AV01 | Patent right actively abandoned |