CN106531247A - Spraying type condensation device and reactor simulation test device secondary circuit system formed by same - Google Patents
Spraying type condensation device and reactor simulation test device secondary circuit system formed by same Download PDFInfo
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- CN106531247A CN106531247A CN201611204896.0A CN201611204896A CN106531247A CN 106531247 A CN106531247 A CN 106531247A CN 201611204896 A CN201611204896 A CN 201611204896A CN 106531247 A CN106531247 A CN 106531247A
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- pressure vessel
- pressure
- condensation type
- type device
- steam
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/001—Mechanical simulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a spraying type condensation device and a reactor simulation test device secondary circuit system formed by the same. The problem that due to the fact that a steam turbine is high in manufacturing cost, the cost is high if the steam turbine is adopted as a steam consumption device in a reactor simulation test is solved. The spraying type condensation device comprises a pressure container with an inlet connection tube and an outlet connection tube, a spraying connection tube arranged on the top of the pressure container, a nozzle arranged inside the pressure container and communicated with the spraying connection tube. The outlet connection tube is located at the bottom of the pressure container, and the inlet connection tube is located at the upper portion of the pressure container. The spraying type condensation device has the advantages that the reactor secondary circuit steam turbine steam extraction effect is effectively simulated and the simulation cost is lowered.
Description
Technical field
The present invention relates to reactor thermo-hydraulics and security technology area, and in particular to a kind of spraying condensation type device, and
Disclose the reactor simulation test device secondary coolant circuit system constituted using the spraying condensation type device.
Background technology
Nuclear reactor is the complicated therrmodynamic system that nuclear energy is converted into electric energy or mechanical energy.Existing nuclear reactor is mostly pressed
Water-water reactor, presurized water reactor mainly include primary Ioops and secondary coolant circuit system.Wherein, primary Ioops are responsible for for nuclear energy being converted into heat energy, and will obtain
The heat energy for obtaining passes to secondary circuit.Secondary circuit is responsible for for the heat energy obtained from primary Ioops being converted into electric energy or mechanical energy.Actual
In reactor secondary circuit, frequently with steam turbine as energy conversion device, i.e., done work in steam turbine by steam, by steam
Heat energy is converted into mechanical energy, then converts mechanical energy into electric energy by generator.As steam turbine structure is complicated, cost is high,
Thus in reactor simulated test, if using steam turbine as consumption vapour device if cause it is relatively costly.
The content of the invention
The technical problem to be solved is：As the cost of steam turbine is high, cause in reactor simulated test
In if using steam turbine as consumption vapour device if relatively costly problem, it is therefore intended that a kind of spraying condensation type device is provided,
Steam turbine in alternative reaction heap simulated test, is led as consumption vapour device using steam turbine in solving above-mentioned reactor simulated test
The problem for causing experimentation cost higher.
In view of the problem that the cost of steam turbine is high, the present invention devises a kind of spray that can be used for reactor simulated test
Pouring formula condensing unit, the present invention are achieved through the following technical solutions：
A kind of spraying condensation type device, including the pressure vessel with entrance sleeve and discharge connection, is arranged on pressure appearance
Spray adapter at the top of device, the shower nozzle for being arranged on inside pressure vessel and connecting with spray adapter；The discharge connection is located at pressure
The bottom of force container, the entrance sleeve are located at the top of pressure vessel.
In process of the test, entered after spray condensing unit from the steam of steam generator generation by main steam line, with
The a large amount of low temperature droplets mixings sprayed in spray equipment, some vapor are rapidly condensed into water, and it is empty to be settled down to the bottom water of device
Between.After steam condensation, on device top, air space forms low-pressure area, and the steam further aspirated in main steam line enters dress
Put.
In the present invention, a kind of spraying condensation type device can be such that steam condenses in device upper space by spray and produce
The vacuum of raw local, forms low-pressure area, can provide driving force for the flowing of steam in jet chimney, drives steam constantly to enter spray
Shower device, the effect of drawing gas produced by regulation back pressure in effectively simulating steam turbine operation, is realized to reactor secondary circuit
The simulation of extracted steam from turbine effect.Using steam condensation generation parital vacuum, this physical effect produces steam to spray condensing unit
Circulation driving force, effect is obvious and reliability is high.
Also, steam can be condensed into saturation water by a kind of spraying condensation type device again so as to be easier after completing phase transformation
Exchanged heat, and then be easy to the temperature standard of steam generator secondary side feedwater is reached by further heat exchange.The present invention is used
After the device, as long as increasing corresponding heat transmission equipment in the loop, it is possible to the whole secondary circuit thermodynamic cycle process of full simulation,
The cost of simulation system is saved greatly, effect is very notable.
Further, electrical heating elements, the number of the electrical heating elements are provided with the bottom position in the pressure vessel
Measure as four groups, the input of every group of electrical heating elements or excision can independent controls.It is additionally provided with the pressure vessel for detecting pressure
The device for pressure measurement of the internal pressure of force container, the quantity of the device for pressure measurement is two, is separately positioned on pressure vessel
Top and bottom.Spray branch road regulating valve is additionally provided with the spray adapter.
Further provided with electrical heating elements, spray branch road regulating valve and pressure to survey in a kind of spraying condensation type device of the present invention
Amount device, by the start and stop state for adjusting spray flow and heating, can be with effective control condensing unit and the pressure of secondary circuit
Power, thus the voltage-stablizer that a kind of spraying condensation type device of the present invention is also used as secondary circuit is used, and is realized to secondary circuit pressure
The control of power, further reduces the equipment of secondary circuit, significantly reduces setting for reactor simulation test device secondary coolant circuit system
Standby input cost.Thus, a kind of spraying condensation type device of the present invention can replace loop voltage-stablizer, make the loop in pilot system
Equipment reduces, and not only contributes to reduce experimentation cost, is also beneficial to the compact Layout of circuit system.
The spray flow of the present invention can carry out real-time regulation by spraying branch road regulating valve, can meet steam production different
Stable state and transient condition demand.Spray branch road regulating valve is preferably pneumatic control valve.
Further, the pressure vessel top is additionally provided with exhaust steam valve, and the pressure vessel bottom is additionally provided with row
Water valve.The present invention is equipped with relief valve at the top of container, is easy in superpressure by discharging decompressing, blowoff valve is housed in bottom,
Effluent sewerage when being easy to clean container.
In order to reach the purpose of more uniform water spray, by the supervisor through pressure vessel, one end is fixed on master to the shower nozzle
The arm arranged on pipe and with supervisor's central axis upright, and the spout composition being arranged on arm.The quantity of the arm
For four, supervisor is evenly distributed on one week, the spout is located at below arm.
Reactor simulation test device secondary coolant circuit system, including a kind of above-mentioned spraying condensation type device, with a kind of spray
The steam generator of the entrance sleeve connection of formula condensing unit, the heat exchange connected with a kind of discharge connection of spraying condensation type device
Device, connects the feed pump at the secondary side feedwater end of heat exchanger water side and steam generator.
Further, the pump bypass with feedwater parallel connection of pumps is additionally provided with the feed pump position, is provided with the pump bypass
Pump bypass valve；The feed pump water side is also connected with a kind of spray adapter of spraying condensation type device by pipeline.
The present invention compared with prior art, has the following advantages and advantages：
1st, a kind of spraying condensation type device of the invention realizes the simulation to the effect of reactor secondary circuit extracted steam from turbine；
2nd, the present invention is equipped with the electrical heating elements of power adjustable in the bottom hydrospace of condensing unit, with top spray system
Coordinate, can control secondary coolant circuit system pressure, realize the basic function of steam pressurizer, thus the condensing unit of the present invention can replace
Loop voltage-stablizer, makes the circuit units reduction in pilot system, not only contributes to reduce experimentation cost, be also beneficial to circuit system
Compact Layout；
3rd, condensing unit of the invention is condensed to steam by the way of carbonated drink directly mixes, and effectively overcomes indirect type
In condensing plant, heat transfer resistance exchanges the impact of thermal effect, makes heat transfer process more efficiently and rapid.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is a kind of structural representation of spraying condensation type device in the present invention.
Fig. 2 is the structural representation of reactor simulation test device secondary coolant circuit system in the present invention.
Mark and corresponding parts title in accompanying drawing：
1- pressure vessels, 2- entrance sleeves, 3- draining valves, 4- discharge connections, 5- electrical heating elements, 6- shower nozzles, 7- steam discharges
Valve, 8- spray adapters, 9- device for pressure measurement, 10- steam generators, 11- heat exchangers, 12- feed pumps, 13- spray branch roads are adjusted
Section valve, 14- pump bypass valves.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figure 1, a kind of spraying condensation type device of the invention, including the pressure with entrance sleeve 2 and discharge connection 4
Container 1, the spray adapter 8 being arranged at the top of pressure vessel 1, the spray for being arranged on inside pressure vessel 1 and connecting with spray adapter 8
6；The discharge connection 4 is located at the bottom of pressure vessel 1, and the entrance sleeve 2 is located at the top of pressure vessel 1.
Shower water from after the entrance pressure vessel 1 of spray equipment, respectively from a large amount of Small Inclined Holes of four groups of nozzle surfaces
Spray at a high speed, and rapidly atomized into drop.Drop is sufficiently mixed with the steam entered from entrance sleeve, condenses some vapor
For drop, it is settled down in the bottom hydrospace of pressure vessel 1.Due to the condensation of steam, low-pressure area is formed at 1 top of pressure vessel,
The steam that further can be aspirated in main steam line is entered in pressure vessel 1.
The reactor simulated test dress of the present invention is constituted when being applied in secondary test device using above-mentioned condensing unit
Put secondary coolant circuit system, specifically include be sequentially connected with a kind of spraying condensation type device, heat exchanger 11, feed pump 12, steam generation
Device 10, the secondary side outlet side of steam generator 10 are connected with a kind of entrance sleeve 2 of spraying condensation type device, as shown in Figure 2.
When being installed in secondary test device using condensing unit in the present invention, what steam generator secondary side was produced
Steam is entered in entrance sleeve 2 from the top of steam generator, is subject to pressure differential in the duct in steam, into pressure vessel
Inside 1.In pressure vessel 1, steam is condensed into saturation water, and saturation water carries out heat exchange cooling in sending into heat exchanger 11, becomes
Secondary side feeds water, and by the effect of feed pump 12, flows into 10 secondary side of steam generator feedwater end via water-supply line, complete
Circulation.
Embodiment 2
The present embodiment is that electrical heating elements 5, device for pressure measurement are increased in the present embodiment with the difference of embodiment 1
9th, the structures such as branch road regulating valve 13 are sprayed, it is concrete to arrange as follows：
The pressure vessel is provided with electrical heating elements 5 at 1 inner bottom part position, and the inside of the pressure vessel 1 is additionally provided with
For detecting the device for pressure measurement 9 of 1 internal pressure of pressure vessel；Spray branch road regulating valve is additionally provided with the spray adapter 8
13.In the present embodiment, the electrical heating elements 5 are set to four groups, and the input or excision per set of pieces can independent control.The pressure is surveyed
The quantity of amount device 9 is two, is separately positioned on the top and bottom of pressure vessel 1.
In the present embodiment, exhaust steam valve 7 at the top of the pressure vessel 1, is additionally provided with, 1 bottom of the pressure vessel is additionally provided with
Draining valve 3.By the supervisor through pressure vessel 1, one end is fixed on supervisor above and is set with supervisor's central axis upright the shower nozzle 6
The arm put, and the spout composition being arranged on arm；The quantity of the arm is four, is evenly distributed on supervisor one week,
The spout is located at below arm, as shown in Figure 1.
Embodiment 3
The present embodiment is that reactor simulation test device secondary circuit is optimized in the present embodiment with the difference of embodiment 2
The concrete structure of system, as shown in Fig. 2 arranging as follows：
The pump bypass in parallel with feed pump 12 is additionally provided with 12 position of the feed pump, is provided with by pump in the pump bypass
Road regulating valve 14.12 water side of the feed pump is also connected with a kind of spray adapter 8 of spraying condensation type device by pipeline.
The specific work process of the present invention is as follows：
1) preparation before starter.
First, working medium of the loading with certain liquid level in pressure vessel 1.Liquid level passes through the pressure measxurement of top and bottom
The pressure reduction that device 9 is obtained is calculated.Start electrical heating elements 5, make the working medium intensification in pressure vessel 1, when water temperature rises to 100
DEG C when, open top exhaust steam valve 7, discharge air and other incoagulable gas.Continue to heat up, until water temperature reaches secondary circuit and makes a reservation for
After saturation temperature under pressure, electrical heating elements 5 are closed.Now, 1 upper space of pressure vessel is full of saturated vapor.
2) life's work.
In test, after steam generator 10 starts to produce steam, spray branch road regulating valve 13 is opened, starts feed pump
12, make shower water that pressure vessel 1 is entered under the driving of feed pump 12.Shower water is entered from the spray adapter 8 of pressure vessel 1
Afterwards, spray from a large amount of Small Inclined Holes high speeds on four groups of 6 surfaces of shower nozzle respectively, and rapidly atomized into drop.Drop with from entering
The steam that mouth adapter 2 is entered is sufficiently mixed, and makes some vapor be condensed into drop, is settled down to 1 bottom hydrospace of pressure vessel.Due to
The condensation of steam, 1 top of pressure vessel form low-pressure area, and the steam that further can be aspirated in main steam line enters pressure vessel
1.In order to realize the voltage stabilizing function of device, the pressure value measured according to the device for pressure measurement 9 at top in test adjusts spray stream
The start and stop state of amount and electrical heating elements 5, it is ensured that secondary circuit pressure.Concrete grammar is：
(1) when measured pressure value is less than setting pressure, reduce 13 aperture of spray branch road regulating valve, reduce spray flow,
Electrical heating elements 5 being opened simultaneously, increasing by 1 upper steam amount of pressure vessel, pressure gos up.
(2) when measured pressure value is higher than setting pressure, increase by 13 aperture of spray branch road regulating valve, improve spray flow,
Decline the quantity of steam on 1 top of pressure vessel, reduced pressure.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, the be should be understood that specific embodiment that the foregoing is only the present invention is not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (9)
1. a kind of spraying condensation type device, it is characterised in that include that the pressure with entrance sleeve (2) and discharge connection (4) holds
Device (1), spray adapter (8) being arranged at the top of pressure vessel (1) are arranged on pressure vessel (1) inside and take over (8) with spray
The shower nozzle (6) of connection；The discharge connection (4) is held positioned at pressure positioned at the bottom of pressure vessel (1), the entrance sleeve (2)
The top of device (1).
2. a kind of spraying condensation type device according to claim 1, it is characterised in that pressure vessel (1) inner bottom part
Electrical heating elements (5) are provided with position, the inside of the pressure vessel (1) is additionally provided with for detecting that pressure vessel (1) is internal
The device for pressure measurement (9) of pressure；Spray branch road regulating valve (13) is additionally provided with spray adapter (8).
3. a kind of spraying condensation type device according to claim 2, it is characterised in that the device for pressure measurement (9)
Quantity is two, is separately positioned on the top and bottom of pressure vessel (1).
4. a kind of spraying condensation type device according to claim 1, it is characterised in that at the top of the pressure vessel (1) also
Exhaust steam valve (7) is provided with, pressure vessel (1) bottom is additionally provided with draining valve (3).
5. a kind of spraying condensation type device according to claim 1, it is characterised in that the shower nozzle (6) is by through pressure
The supervisor of container (1), the arm that one end is fixed on supervisor above and is arranged with supervisor's central axis upright, and be arranged on arm
Spout composition.
6. a kind of spraying condensation type device according to claim 5, it is characterised in that the quantity of the arm is four,
It is evenly distributed on supervisor one week, the spout is located at below arm.
7. reactor simulation test device secondary coolant circuit system, it is characterised in that include as described in any one of claim 1～6
A kind of spraying condensation type device, the steam connected with a kind of entrance sleeve (2) of spraying condensation type device by main steam pipe
Generator (10), the heat exchanger (11) connected with a kind of discharge connection (4) of spraying condensation type device, connection heat exchanger (11) are gone out
The feed pump (12) at the secondary side feedwater end of water end (W.E.) and steam generator (10).
8. reactor simulation test device secondary coolant circuit system according to claim 7, it is characterised in that the feed pump
(12) the pump bypass in parallel with feed pump (12) is additionally provided with position, in the pump bypass, pump bypass valve (14) is provided with.
9. reactor simulation test device secondary coolant circuit system according to claim 7, it is characterised in that the feed pump
(12) water side is also connected with a kind of spray adapter (8) of spraying condensation type device by pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611204896.0A CN106531247B (en) | 2016-12-23 | 2016-12-23 | The reactor simulation test device secondary coolant circuit system of spraying condensation type device and composition |
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| CN201611204896.0A CN106531247B (en) | 2016-12-23 | 2016-12-23 | The reactor simulation test device secondary coolant circuit system of spraying condensation type device and composition |
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| CN106531247B CN106531247B (en) | 2017-08-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515189A (en) * | 2017-07-31 | 2017-12-26 | 中国核动力研究设计院 | A kind of nuclear power plant containment shell spray system verification experimental verification method and experimental rig |
| CN109477403A (en) * | 2016-06-20 | 2019-03-15 | Ifp新能源公司 | For detecting and extracting the method for the gaseous fluid for including in the closed circuit operated according to Rankine cycle and using the device of this method |
| CN111290443A (en) * | 2020-04-02 | 2020-06-16 | 广西防城港核电有限公司 | Continuous spraying flow control system of nuclear power station voltage stabilizer |
| CN114200974A (en) * | 2021-12-03 | 2022-03-18 | 上海交通大学 | Fine pressure regulation and control experiment system of IVR-ERVC experiment device |
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| CN114200974A (en) * | 2021-12-03 | 2022-03-18 | 上海交通大学 | Fine pressure regulation and control experiment system of IVR-ERVC experiment device |
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|---|---|
| CN106531247B (en) | 2017-08-08 |
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Inventor after: Tang Yu Inventor after: Chen Bingde Inventor after: Xu Jianjun Inventor after: Xie Tianzhou Inventor after: Huang Yanping Inventor after: Peng Jinfeng Inventor after: Zhou Huihui Inventor before: Tang Yu Inventor before: Xu Jianjun Inventor before: Xie Tianzhou Inventor before: Huang Yanping Inventor before: Peng Jinfeng Inventor before: Zhou Huihui |