CN104658404B - A kind of steam generator heat-transfer pipe beam analogue means - Google Patents
A kind of steam generator heat-transfer pipe beam analogue means Download PDFInfo
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- CN104658404B CN104658404B CN201510120713.6A CN201510120713A CN104658404B CN 104658404 B CN104658404 B CN 104658404B CN 201510120713 A CN201510120713 A CN 201510120713A CN 104658404 B CN104658404 B CN 104658404B
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- tube sheet
- steam generator
- transfer pipe
- supporting plate
- heating elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Business, Economics & Management (AREA)
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- Resistance Heating (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of steam generator heat-transfer pipe beam analogue means, including flow distribution baffle（3）, element tube sheet（5）And multiple U-shaped electrical heating elements（1）, wherein, flow distribution baffle（3）Located at element tube sheet（5）Top, flow distribution baffle（3）Perforated provided with the medium flow field through hole through its upper and lower end face and multiple heating element heaters（301）, U-shaped electrical heating elements（1）Two terminations from top to bottom sequentially pass through heating element heater perforation（301）, element tube sheet（5）After be connected to element tube sheet（5）On.The present invention uses said structure, overall structure is simple, it is easy to implement, cost is low, the present invention can carry out feasible simulation to prototype steam generator heat-transfer pipe beam heating power, geometric structure diamete, and the steam generator analogue body for main research vapor generator secondary side characteristic provides heating surface bank analogue means.
Description
Technical field
The present invention relates to the steam generator analogue body knot of ACP1000 Passive residual heat removal system experimental provisions
Structure, specifically a kind of steam generator heat-transfer pipe beam analogue means.
Background technology
At present, global pressurized water reactor steam generator generally uses Vertical Natural Circulation Steam Generator, steam generation
Device interior media circulation process is：Secondary side feedwater enters to water ring through water supply connecting tube, and is assigned to hydroecium, with steam-water separation
It is downward into the circular fall-off intracavitary between tube bank sleeve and steam generator cylinder after the recycling water mixing that device is separated
Flowing.It is upward through restraining sleeve breach baffling in bottom, absorb the heat of primary side upwards through heating surface bank area and along runner between pipe
Amount, boiling is heated to, produces steam.Steam water interface is introduced into first order steam-water separator after leaving heating surface bank, thus
Most water is isolated, enters back into the second level steam-water separator of herringbone plate composition.The water isolated downwards through drain pipe,
Mixed with other recycling water, into hydroecium, continue next circulation.
Steam generator heat-transfer pipe beam is to take primary Ioops heat out of, and steam generator secondary side feedwater is changed into the energy of steam
Amount transmits the power of Natural Circulation inside medium and steam generator, and heating surface bank is to ensureing that reactor safety operation is extremely heavy
Will.In the design of Vertical Natural Circulation Steam Generator analogue body, the design of heating surface bank analogue means is steam generator mould
Intend one of main action of body design.In steam generator analogue body design process, for the simulation of heating surface bank
It is the non-of simulated object that design, which is generally used with prototype identical pipe Pipe bundle structure, such as U.S.'s AP600 passive safety systems,
Active core cooling system SPES-2 comprehensive simulation experiment devices, the advanced large pressurized water reactor APR1400 developed using South Korea is moulds
ATLAS experimental provisions intended object and built up etc., the heating surface bank of these experimental provisions is identical with prototype, is used for carrying out synthesis
Experiment, experimental provision is complicated, and simulation ratio is typically small, costly.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of simulation of steam generator heat-transfer pipe beam to fill
Put, its is simple in construction, is easy to implement, and cost is low, eliminates primary Ioops simulation system, can realize and prototype steam generator is conducted heat
Restrain heating power, geometric structure diamete carries out feasible simulation, and can provided for steam generator analogue body inner loop resistance
Adjustable space.
The present invention, which solves the above problems, to be achieved through the following technical solutions：A kind of steam generator heat-transfer pipe beam simulation
Device, including flow distribution baffle, element tube sheet and multiple U-shaped electrical heating elements, the flow distribution baffle is located at element tube sheet
Top, flow distribution baffle are provided with through the medium flow field through hole of its upper and lower end face and the perforation of multiple heating element heaters, the U-shaped electrical heating
Two terminations of element are connected on element tube sheet after from top to bottom sequentially passing through heating element heater perforation, element tube sheet.Wherein,
Element tube sheet uses flange arrangement, and diameter, thickness and the flange arrangement selection ground technological requirement of tube sheet determine.
Further, the flow distribution baffle is annular shape, and the medium flow field through hole includes flow distribution baffle center and formed
Circular media opening, and two through flow distribution baffle upper and lower end face and respectively positioned at circular media opening both sides
First waist type medium flow field through hole, two the first waist type medium flow field through holes are set in the radial direction same.
Further, a kind of steam generator heat-transfer pipe beam analogue means, in addition to supporting plate, the support plate level are set
Put and be distributed in U-shaped electrical heating elements straight section, the supporting plate, which is formed, to be had through the plum blossom hole of its upper and lower end face and three second
Waist type medium flow field through hole, three the second waist type medium flow field through holes are set in the radial direction same, and the U-shaped electrical heating elements are worn
Cross the plum blossom hole of supporting plate.In this way, during present invention application, can be spacing to the progress of U-shaped electrical heating elements by supporting plate, this can be reduced
U-shaped electrical heating elements rocks during invention application.
Further, the quantity of the supporting plate is polylith, and two pieces of supporting plates of arbitrary neighborhood in polylith supporting plate are perpendicular
Nogata is to setting spaced apart.
Further, the quantity of the supporting plate is less equal than 9 pieces.
Further, the quantity of the supporting plate is 6 pieces.
For the ease of being positioned to supporting plate and flow distribution baffle, further, a kind of steam generator heat-transfer pipe beam
Analogue means, in addition to support bar, the support bar is vertically arranged and its lower end is fixed on element tube sheet, the supporting plate and
Flow distribution baffle is each attached on support bar.
Further, a kind of steam generator heat-transfer pipe beam analogue means, in addition to tube sheet backing plate, the tube sheet backing plate structure
Into there is multiple circular perforations through its upper and lower end face, tube sheet backing plate is arranged concentrically and is connected on element tube sheet with element tube sheet
End face, the manhole of the support bar lower end insertion tube sheet backing plate is interior to be connected with tube sheet backing plate, the U-shaped electrical heating elements
Two terminations both pass through the circular perforations of tube sheet backing plate.In this way, during present invention application, punched on tube sheet backing plate so that tube sheet
Backing plate is directly connected to support bar, can efficiently reduce the number of openings on element tube sheet, is advantageous to improve element tube sheet
Intensity.
Further, the sheathing material of the U-shaped electrical heating elements is stainless steel.
In summary, the invention has the advantages that：（1）Overall structure of the present invention is simple, is easy to implement, cost
Low, the present invention uses U-shaped electrical heating elements, can exactly realize and be transmitted to secondary side power to prototype heating surface bank primary side
Simulation, feasible simulation can be carried out to prototype steam generator heat-transfer pipe beam heating power, geometric structure diamete, be steam generator
Analogue body inner loop resistance provides adjustable space, meets that on the premise of requirement of experiment primary Ioops system can be eliminated（Reactor
The simulation of reactor core, main pump and cooling agent）, therefore, the present invention is the main steam generator for studying vapor generator secondary side characteristic
Analogue body provides heating surface bank analogue means.
（2）The flow distribution baffle of the present invention is provided with medium flow field through hole and multiple heating element heaters are perforated, wherein, medium flow field through hole
Include the circular media opening of flow distribution baffle center composition, and two run through flow distribution baffle upper and lower end face and respectively position
The first waist type medium flow field through hole in circular media opening both sides, the present invention pass through the perforate of reasonable disposition different zones, energy
Electric heating element heating surface bank area assignment of traffic is uneven in reduction steam generator analogue body.
（2）The present invention includes supporting plate, wherein, supporting plate uses the structure type less than prototype supporting plate quantity, effectively
Ground reduces the droop loss that secondary side medium flows through heating surface bank analogue means.
Brief description of the drawings
Fig. 1 is the structural representation of a specific embodiment of the invention；
Fig. 2 is the structural representation of flow distribution baffle in a specific embodiment of the invention；
Fig. 3 is the structural representation of supporting plate in a specific embodiment of the invention；
Fig. 4 is the structural representation of tube sheet backing plate in a specific embodiment of the invention；
Fig. 5 is the attachment structure schematic diagram of U-shaped electrical heating elements and element tube sheet in a specific embodiment of the invention；
Fig. 6 is the attachment structure schematic diagram of support bar and tube sheet backing plate in a specific embodiment of the invention.
It is entitled corresponding to reference in accompanying drawing：1st, U-shaped electrical heating elements, 2, supporting plate, 201, plum blossom hole, 202,
Second waist type medium flow field through hole, 3, flow distribution baffle, 301, heating element heater perforation, 302, circular media opening, 303, first
Waist type medium flow field through hole, 4, tube sheet backing plate, 5, element tube sheet, 6, support bar.
Embodiment
With reference to embodiment and accompanying drawing, detailed description further, but embodiments of the present invention are done to the present invention
Not limited to this.
Embodiment 1：
As shown in figure 1, a kind of steam generator heat-transfer pipe beam analogue means, including U-shaped electrical heating elements 1, assignment of traffic
Plate 3 and element tube sheet 5, wherein, the quantity of U-shaped electrical heating elements 1 is multiple, and U-shaped electrical heating elements 1 are U-tube form, is used
Indirectly uniformly heating, the structure of both-end outlet, U-shaped electrical heating elements 1 use 0 ~ 220V of voltage range, operating power range be 0 ~
3000kW, and continuously adjustabe.The sheathing material of U-shaped electrical heating elements 1 uses stainless steel material, and U-shaped electrical heating elements 1 can be born
Highest external pressure is 20MPa, can bear maximum temperature as 300 DEG C.Flow distribution baffle 3 is located at the top of element tube sheet 5, assignment of traffic
Plate 3 be provided with through its upper and lower end face medium flow field through hole and multiple heating element heaters perforation 301, the two of each U-shaped electrical heating elements 1
Individual termination is connected on element tube sheet 5 after from top to bottom sequentially passing through heating element heater perforation 301, element tube sheet 5.The present embodiment
The quantity of middle heating element heater perforation 301 is identical with all termination quantity sums of U-shaped electrical heating elements 1, a heating element heater perforation
301 is corresponding through a termination.As shown in figure 5, the present embodiment, in specific set, U-shaped electrical heating elements 1 use argon arc welding
Or silver brazing connects mode and is connected with element tube sheet 5, the protruded length of U-shaped electrical heating elements 1 is 25mm, and welding process should prevent to U
The destruction of the insulating barrier of shape electrical heating elements 1.
When the present embodiment is applied, using U-shaped electrical heating elements, it can exactly realize and prototype heating surface bank primary side is passed
To the simulation of secondary side power, primary Ioops can be omitted on the premise of requirement of experiment is met.The present embodiment uses when applying
RELAP5 programs are analyzed the accident of secondary side passive operation phase, and analysis result shows directly using given power
Method to carry out model steam generator primary side to be transmitted to the heat of secondary side be reasonable.
Embodiment 2：
Limited further below as shown in Fig. 2 the present embodiment is made that on the basis of embodiment 1：The stream of the present embodiment
Distribution plate 3 is measured as annular shape, medium flow field through hole includes the circular media opening 302 that the center of flow distribution baffle 3 is formed, and two
Individual the first waist type medium flow field through hole for running through the upper and lower end face of flow distribution baffle 3 and being located at the both sides of circular media opening 302 respectively
303, two the first waist type medium flow field through holes 303 are set in the radial direction same.
Embodiment 3：
Such as Fig. 3 institutes, the present embodiment is made that on the basis of embodiment 1 or embodiment 2 and limited further below：This reality
Applying example also includes supporting plate 2, and supporting plate 2 is horizontally disposed and is distributed in the straight section of U-shaped electrical heating elements 1, and supporting plate 2, which forms to have, to be run through
The plum blossom hole 201 of its upper and lower end face and three the second waist type medium flow field through holes 202, three the second waist type medium flow field through holes 202 exist
Same to set in the radial direction, U-shaped electrical heating elements 1 pass through the plum blossom hole 201 of supporting plate 2.The plum blossom hole 201 of the present embodiment is adopted
With six leaf plum blossom holes, when the present embodiment is applied, plum blossom hole 201 diametrically prevents U-shaped electrical heating elements 1 from rocking, while can also
Ensure the flow velocity between U-shaped electrical heating elements 1 and the hole of plum blossom hole 201, it is ensured that safe heat transfer.
Embodiment 4：
In order to lift the steadiness of the present embodiment, the present embodiment is made that on the basis of embodiment 3 to be limited further below
It is fixed：The quantity of supporting plate 2 is less equal than 9 pieces, when the quantity of supporting plate 2 is polylith, two pieces of arbitrary neighborhood in the present embodiment
Supporting plate 2 is in vertical direction setting spaced apart.The present embodiment is directed to ACP1000 Passive residual heat removal systems
The specific works parameter of steam generator analogue body structure and the flow velocity of flow media of experimental provision, pass through theoretical calculation point
Analysis, using 6 pieces of supporting plates 2, can meet requirement, and can effectively reduce resistance.
Embodiment 5：
For the ease of the positioning of supporting plate 2 and flow distribution baffle 3, the present embodiment is on the basis of embodiment 2 or embodiment 3
It is made that and limits further below：The present embodiment also includes support bar 6, wherein, support bar 6 is vertically arranged and its lower end is fixed on
On element tube sheet 5, supporting plate 2 and flow distribution baffle 3 are each attached on support bar 6.The present embodiment passes through branch in specific set
Strut 6 passes through supporting plate 2 and flow distribution baffle 3, then supporting plate 2 and flow distribution baffle 3 are fixed.
Embodiment 6：
Limited further below as shown in figure 4, the present embodiment is made that on the basis of embodiment 5：The present embodiment also wraps
Tube sheet backing plate 4 is included, wherein, tube sheet backing plate 4, which is formed, multiple circular perforations through its upper and lower end face, tube sheet backing plate 4 and element
Tube sheet 5 is arranged concentrically and is connected to the upper surface of element tube sheet 5, with managing in the manhole of the lower end of support bar 6 insertion tube sheet backing plate 4
Plate backing plate 4 connects, and two terminations of U-shaped electrical heating elements 1 both pass through the circular perforations of tube sheet backing plate 4.Tube sheet in the present embodiment
Backing plate 4 is attached with element tube sheet 5 by the way of circumferential spot welding.As shown in fig. 6, support bar 6 and tube sheet in the present embodiment
Backing plate 4 directly welds.
As described above, it can preferably realize the present invention.
Claims (7)
1. a kind of steam generator heat-transfer pipe beam analogue means, it is characterised in that including flow distribution baffle（3）, element tube sheet（5）
And multiple U-shaped electrical heating elements（1）, the flow distribution baffle（3）Located at element tube sheet（5）Top, flow distribution baffle（3）If
Have through the medium flow field through hole of its upper and lower end face and the perforation of multiple heating element heaters（301）, the U-shaped electrical heating elements（1）Two
Individual termination from top to bottom sequentially passes through heating element heater perforation（301）, element tube sheet（5）After be connected to element tube sheet（5）On；
The flow distribution baffle（3）For annular shape, the medium flow field through hole includes flow distribution baffle（3）Circular Jie that center is formed
Mass flow through hole（302）, and two run through flow distribution baffle（3）Upper and lower end face and it is located at circular media opening respectively（302）
First waist type medium flow field through hole of both sides（303）, two the first waist type medium flow field through holes（303）Set in the radial direction same
Put；Also include supporting plate（2）, the supporting plate（2）It is horizontally disposed with and in U-shaped electrical heating elements（1）Straight section is distributed, the support
Plate（2）Form the plum blossom hole having through its upper and lower end face（201）With three the second waist type medium flow field through holes（202）, three second
Waist type medium flow field through hole（202）Set in the radial direction same, the U-shaped electrical heating elements（1）Through supporting plate（2）Plum
Hua Kong（201）.
A kind of 2. steam generator heat-transfer pipe beam analogue means according to claim 1, it is characterised in that the supporting plate
（2）Quantity be polylith, polylith supporting plate（2）In two pieces of supporting plates of arbitrary neighborhood（2）It is spaced apart in vertical direction
Set.
A kind of 3. steam generator heat-transfer pipe beam analogue means according to claim 2, it is characterised in that the supporting plate
（2）Quantity be less equal than 9 pieces.
A kind of 4. steam generator heat-transfer pipe beam analogue means according to claim 3, it is characterised in that the supporting plate
（2）Quantity be 6 pieces.
5. a kind of steam generator heat-transfer pipe beam analogue means according to claim 1, it is characterised in that also include support
Bar（6）, the support bar（6）It is vertically arranged and its lower end is fixed on element tube sheet（5）On, the supporting plate（2）With flow point
Matching board（3）It is each attached to support bar（6）On.
6. a kind of steam generator heat-transfer pipe beam analogue means according to claim 5, it is characterised in that also including tube sheet
Backing plate（4）, the tube sheet backing plate（4）Composition has multiple circular perforations through its upper and lower end face, tube sheet backing plate（4）With element tube
Plate（5）It is arranged concentrically and is connected to element tube sheet（5）Upper surface, the support bar（6）Lower end is embedded in tube sheet backing plate（4）Circle
In through hole with tube sheet backing plate（4）Connection, the U-shaped electrical heating elements（1）Two terminations both pass through tube sheet backing plate（4）Circle
Perforation.
7. a kind of steam generator heat-transfer pipe beam analogue means according to any one in claim 1~6, its feature exist
In the U-shaped electrical heating elements（1）Sheathing material be stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120713.6A CN104658404B (en) | 2015-03-19 | 2015-03-19 | A kind of steam generator heat-transfer pipe beam analogue means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120713.6A CN104658404B (en) | 2015-03-19 | 2015-03-19 | A kind of steam generator heat-transfer pipe beam analogue means |
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| CN104658404A CN104658404A (en) | 2015-05-27 |
| CN104658404B true CN104658404B (en) | 2018-03-30 |
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| CN201510120713.6A Active CN104658404B (en) | 2015-03-19 | 2015-03-19 | A kind of steam generator heat-transfer pipe beam analogue means |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023498A (en) * | 2015-06-17 | 2015-11-04 | 中科华核电技术研究院有限公司 | Steam generator test system |
| CN107175228A (en) * | 2016-03-10 | 2017-09-19 | 核动力运行研究所 | Steam generator secondary side the first supporting plate lower surface hydrodynamic cleaning guider |
| CN105758630B (en) * | 2016-03-30 | 2018-03-16 | 西安交通大学 | A kind of experimental provision and method of steam generator elbow region |
| CN109540565B (en) * | 2018-12-28 | 2024-04-09 | 核动力运行研究所 | Steam generator thermal hydraulic performance test simulator |
| CN110057865B (en) * | 2019-05-14 | 2022-09-27 | 哈尔滨工程大学 | Secondary side boiling heat transfer analysis device of marine steam generator |
| CN110578915B (en) * | 2019-09-11 | 2020-12-11 | 常州大学 | Steam generator with preheater and superheater |
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