CN103204333B - Liquid storage box for realizing internal fluid driving by utilizing temperature difference power source - Google Patents
Liquid storage box for realizing internal fluid driving by utilizing temperature difference power source Download PDFInfo
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- CN103204333B CN103204333B CN201310104597.XA CN201310104597A CN103204333B CN 103204333 B CN103204333 B CN 103204333B CN 201310104597 A CN201310104597 A CN 201310104597A CN 103204333 B CN103204333 B CN 103204333B
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Abstract
The storage of a liquid is usually static in a nuclear power plant; and a storage box only needs to satisfy leak tightness, homoiothermy and accessibility. If stirring and mixing of the stored liquid can be realized in a certain special application occasions, and especially under an accident condition, the preset function of the stored liquid can be strengthened greatly; but the power needed by the stirring and mixing function is usually difficult to obtain in time. The invention belongs to a liquid storage box design, and particularly relates to a liquid storage box for realizing internal fluid driving by utilizing a temperature difference power source. Multiple groups of temperature difference power sources are arranged on a wall body, a top cover and a bottom plate of the storage box; and under the accident condition of the nuclear power plant, the temperature difference power sources enable a reactor to release heat abnormally and change the heat into an electric energy so as to drive a shielding pump and a draught fan both integrated in the storage box to stir and mix the stored liquid.
Description
Technical field
The invention belongs to the design of liquid storage case, be specifically related to a kind of temperature difference power supply that utilizes and realize the liquid storage case that internal flow drives.
Background technology
In nuclear plant, the storage of liquid is normally static, and storage bin only need meet leak tightness, temperature uniformity and accessibility.But in some special application scenario, especially, under accident conditions, if can realize mixing of storing liquid, the preset function of storing liquid can greatly be strengthened, but thisly mix that the required power of merit is normally difficult to obtain in time.
The AP1000 of generation Ⅲ nuclear power factory designing taking US Westinghouse company is as example, and its main advantage and typical characteristics are its safety systems with non-energy dynamic characteristic.The built-in material-changing water tank of containment (IRWST) of AP1000 is intermediate heat trap in important containment while having an accident in nuclear power plant, because water body is huge, within a period of time, in meeting and containment, environment keeps the larger temperature difference, if can manage, this temperature difference is used, with the driven by power equipment promotion IRWST internal flow convective heat exchange producing, its function will obtain considerable lifting.For another example there is the ACP1000 of generation Ⅲ nuclear power factory of China's independent intellectual property right, 201210090809.9) and invention " heat exchanger tube of the non-active heat guiding system heat exchanger of containment " (application number: 201120551527.5) non-active heat guiding system design is important means of its reply major accident, can be referring to invention " the non-active heat guiding system strengthened heat exchange method of double layer concrete containment and device " (application number:.The non-active coolant storage tank that this system is placed in containment top is the ultimate heat sink of nuclear power plant.At the accident initial stage, the water in non-active coolant storage tank is normal temperature, and in containment, the temperature of steam is higher than 100 degree, and the available temperature difference can maintain and exceed more than 72 hours; In post incident, the water in non-active coolant storage tank is in fluidized state, and water body and environment can form again the available temperature difference, if can manage two above-mentioned temperature difference to be used, the overall security of nuclear power plant will obtain considerable lifting.
Thermo-electric generation technology is found in 1821 by Germany scientist Seebeck the earliest, also referred to as seebeck effect.Had significant development in this technology of 20 beginnings of the century, the research of thermoelectric material breaks through metal and finds semi-conducting material.Semi-conductive good thermoelectric conversion characteristic has determined that it is the irreplaceable role of thermo-electric generation performer.The semiconductor temperature differential generating technical development initial stage, due to it Cost Problems and technology incomplete make application not extensive, till now, the application in many aspects of thermo-electric generation technology has had very large progress.Along with thermoelectric material research obtains the development of continuous progress, particularly nanometer and low-dimensional, the thermoelectric figure of merit of material increases significantly.And be accompanied by the cost of continually developing of thermo-electric generation material, cause people's great attention, therefore at some western developed countries, pyroelectric technology also from military space industry to industry and civilian future development popularize.
The present invention seeks to build a kind of temperature difference power supply that utilizes and realizes the liquid storage case that internal flow drives, to under nuclear power plant's accident conditions, improper reactor heat release is converted into electric energy, and drives the canned motor pump and the blower fan that are integrated in storage bin to realize mixing storing liquid.
Summary of the invention
The present invention seeks to build a kind of temperature difference power supply that utilizes and realizes the liquid storage case that internal flow drives, to under nuclear power plant's accident conditions, improper reactor heat release is converted into electric energy, and drives the canned motor pump and the blower fan that are integrated in storage bin to realize mixing storing liquid.
Technical scheme of the present invention is as described below.
A kind of temperature difference power supply that utilizes is realized the cabinet space of liquid storage case that internal flow drives by casing peripheral sidewall, top cover of box, in box bottom and casing, ring-side wall surrounds and forms, in casing, air one gusset of ring-side wall becomes vent passages, it is characterized in that being provided with temperature difference power supply by following one or several mode on described storage bin relevant position:
(1) body of wall of casing peripheral sidewall is provided with one or more temperature difference power supplys, and the hot side of temperature difference power supply is positioned at cabinet wall, contacts with liquid in casing, and cold side is positioned at cabinet exterior, directly contacts with air;
(2) in casing, the body of wall of ring-side wall is provided with one or more temperature difference power supplys, and the hot side of temperature difference power supply is positioned at endocyclic outer wall, contacts with liquid in casing, and cold side is positioned at ring inwall, contacts with the air in vent passages;
(3) top cover of box is provided with one or more temperature difference power supplys, and the hot side of temperature difference power supply is positioned at top cover inwall, contacts with air space in casing, and cold side is positioned at top cover outer wall, directly contacts with air;
(4) box bottom is provided with one or more temperature difference power supplys, and the hot side of temperature difference power supply is positioned at the fluid conduit of plate outer side, contacts with fluid conduit liquid, and cold side is positioned at cabinet wall, directly contacts with liquid in casing;
And described casing also comprises following at least one structure:
(A) casing peripheral sidewall is provided with one or more steam (vapor) outlets, more than steam (vapor) outlet is positioned at casing liquid levels, exhaust fan for adding forced ventilation is housed near steam (vapor) outlet, in the process that liquid 17 temperature raise gradually and come to life in casing, gather a large amount of steam in the interior meeting of casing air space 16, exhaust fan can promote the discharge of these steam.
(B) in box bottom casing, the connected corner of ring-side wall is provided with one or more canned motor pumps, and canned motor pump sucks water accelerate upwards to discharge, thereby promotes natural circulation;
Described exhaust fan and/or canned motor pump are connected and are obtained power supply by cable with described temperature difference power supply.
The present invention can effectively utilize the heal differential about position in liquid storage case, realizes the generating of temperature difference power supply, and powers to exhaust fan and/or canned motor pump by temperature difference power supply, thereby is conducive to the mixing of liquid in storage bin.
Further, liquid storage case is provided with one or more temperature difference power supplys, fluid conduit by hydrothermal solution house steward,
Hydrothermal solution extended channel and some casing hydrothermal solution source lines.This structure is more conducive to realize temperature difference power supply and contacts more fully with hydrothermal solution with hot side.
Further, the cold liquid of one or more casing on liquid storage case flows out pipeline, this pipeline is than the more close casing peripheral sidewall of casing hydrothermal solution source line, such layout is more conducive to improve mixing of the interior liquid of casing, make hot water accelerate upwards to flow, cold water accelerates to flow downward, thereby promotes natural circulation.
Brief description of the drawings
Fig. 1 embodiment structural representation (box steam outlet axis absolute altitude cross sectional plan view)
Fig. 2 embodiment structural representation (on casing peripheral sidewall temperature difference power supply along absolute altitude cross sectional plan view)
Fig. 3 casing peripheral sidewall temperature difference power supply schematic diagram (part)
Fig. 4 embodiment structural representation (50% sectional elevation front elevation)
Fig. 5 embodiment structural representation (33% width sectional elevation front elevation)
Fig. 6 embodiment structural representation (upward view)
Fig. 7 hydrothermal solution extended channel general illustration
Fig. 8 hydrothermal solution extended channel schematic cross-sectional view
Fig. 9 temperature difference power supply schematic diagram
In figure, 1. casing peripheral sidewall, 2. top cover of box, 3. box bottom, 4. ring-side wall in casing, 5. the cold liquid of casing flows out pipeline, 6. box steam outlet, 7. casing hydrothermal solution source line, 8. hydrothermal solution house steward, 9. temperature difference power supply, 10. temperature difference power supply, 11. temperature difference power supplys, 12. temperature difference power supplys, 13. hydrothermal solution extended channels, 14. canned motor pumps, 15. vent passages, air space in 16. casings, liquid in 17. casings, 18. hydrothermal solution extended channel liquid.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail.
As shown in Figure 1, the invention provides a kind of temperature difference power supply that utilizes and realize the liquid storage case that internal flow drives, the cabinet space of this liquid storage case is by casing peripheral sidewall 1, top cover of box 2, and in box bottom 3 and casing, ring-side wall 4 surrounds and forms; Ring-type polygon, annular arrangement, polygon or the circle of symmetry centered by cabinet space horizontal section; In casing, ring-side wall 4 surrounds and forms vent passages 15 beyond casing.
As shown in Figures 1 to 4, the wall segment of casing peripheral sidewall 1 is one or more casing peripheral sidewall temperature difference power supplys 9, the wall segment of top cover of box 2 is one or more top cover temperature difference power supplys 11, the wall segment of box bottom 3 is one or more box bottom temperature difference power supplys 10, and in casing, the wall segment of ring-side wall 4 is ring-side wall temperature difference power supplys 12 in one or more casings.
As shown in Fig. 3, Fig. 5, Fig. 7 and Fig. 8, the hot side 9H of casing peripheral sidewall temperature difference power supply 9 is positioned at cabinet wall, contacts with liquid in casing 17, and cold side 9C is positioned at cabinet exterior, directly contacts with air; The hot side 11H of top cover temperature difference power supply 11 is positioned at cabinet wall, contacts with air space in casing 16, and cold side 11C is positioned at cabinet exterior, directly contacts with air; The hot side 10H of box bottom temperature difference power supply 10 is positioned at hydrothermal solution extended channel 13, directly contacts with hydrothermal solution extended channel liquid 18, and cold side 10C is positioned at cabinet wall, directly contacts with liquid in casing 17; In casing, the hot side (12H) of ring-side wall temperature difference power supply 12 is positioned at cabinet wall, contacts with liquid in casing 17, and cold side 12H is positioned at cabinet exterior, contacts with the air in vent passages 15.
As shown in Fig. 6, Fig. 7 and Fig. 8, hydrothermal solution flows into hydrothermal solution extended channel 13 by hydrothermal solution house steward 8, and the hot side 10H of hydrothermal solution and box bottom temperature difference power supply 10 fully contacts hydrothermal solution extended channel 13 is interior, and flows into casing by casing hydrothermal solution source line 7.
As shown in Figures 1 and 2, casing peripheral sidewall 1 is provided with one or more box steam outlets 6, more than box steam outlet 6 is positioned at casing liquid 17 liquid levels, is communicated with the outer atmosphere of casing air space 16 and casing.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, in box steam outlet 6, the exhaust fan for adding forced ventilation is housed, this exhaust fan can be by casing peripheral sidewall temperature difference power supply 9, and in top cover temperature difference power supply 11 or casing, ring-side wall temperature difference power supply 12 is powered.In the process that liquid 17 temperature raise gradually and come to life in casing, gather a large amount of steam in the interior meeting of casing air space 16, exhaust fan can promote the discharge of these steam.
As shown in Figure 1, Figure 2 and shown in Fig. 4 to Fig. 8, on box bottom 3, the corner being connected with ring-side wall in casing 4, be provided with one or more canned motor pumps 14, this canned motor pump can be by box bottom temperature difference power supply 10, casing peripheral sidewall temperature difference power supply 9, in top cover temperature difference power supply 11 or casing, ring-side wall temperature difference power supply 12 is powered.Canned motor pump sucks water accelerate upwards to discharge, thereby promotes natural circulation.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, have the cold liquid of one or more casing and flow out pipeline 5 on box bottom 3, this pipeline is than the more close casing peripheral sidewall of casing hydrothermal solution source line (7) (1).Such layout is more conducive to improve mixing of the interior liquid 17 of casing, makes hot water accelerate upwards to flow, and cold water accelerates to flow downward, thereby promotes natural circulation.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technology thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (3)
1. one kind is utilized temperature difference power supply to realize the liquid storage case that internal flow drives, the cabinet space of this liquid storage case is by casing peripheral sidewall (1), top cover of box (2), in box bottom (3) and casing, ring-side wall (4) surrounds and forms, in casing, air one gusset of ring-side wall (4) becomes vent passages (15), it is characterized in that being provided with temperature difference power supply by following one or several mode on described storage bin relevant position:
(1) body of wall of casing peripheral sidewall (1) is provided with one or more temperature difference power supplys (9), the hot side of temperature difference power supply (9H) is positioned at cabinet wall, contact with liquid in casing (17), cold side (9C) is positioned at cabinet exterior, directly contacts with air;
(2) in casing, the body of wall of ring-side wall (4) is provided with one or more temperature difference power supplys (12), the hot side (12H) of temperature difference power supply (12) is positioned at endocyclic outer wall, contact with liquid in casing (17), cold side (12C) is positioned at ring inwall, contacts with the air in vent passages (15);
(3) top cover of box (2) is provided with one or more temperature difference power supplys (11), the hot side (11H) of temperature difference power supply (11) is positioned at top cover inwall, contact with air space in casing (16), cold side (11C) is positioned at top cover outer wall, directly contacts with air;
(4) box bottom (3) is provided with one or more temperature difference power supplys (10), the hot side (10H) of temperature difference power supply (10) is positioned at the hydrothermal solution extended channel of plate outer side, contact with hydrothermal solution extended channel liquid (18), cold side (10C) is positioned at cabinet wall, directly contacts with liquid in casing (17);
And described casing also comprises following at least one structure:
(A) casing peripheral sidewall (1) is provided with one or more steam (vapor) outlets (6), steam (vapor) outlet (6) is positioned at casing liquid (17) more than liquid level, and steam (vapor) outlet is equipped with the exhaust fan for adding forced ventilation near (6);
(B) in box bottom (3) casing, the connected corner of ring-side wall (4) is provided with one or more canned motor pumps (14);
Described exhaust fan and/or canned motor pump are connected and are obtained power supply by cable with described temperature difference power supply.
2. a kind of temperature difference power supply that utilizes as claimed in claim 1 is realized the liquid storage case that internal flow drives, it is characterized in that: on box bottom (3), be provided with one or more temperature difference power supplys (10), described fluid conduit is by hydrothermal solution house steward (8), hydrothermal solution extended channel (13) and some casing hydrothermal solution source lines (7).
3. a kind of temperature difference power supply that utilizes as claimed in claim 1 or 2 is realized the liquid storage case that internal flow drives, it is characterized in that: on box bottom (3), have the cold liquid of one or more casing and flow out pipeline (5), this pipeline is than the more close casing peripheral sidewall of casing hydrothermal solution source line (7) (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310104597.XA CN103204333B (en) | 2013-03-28 | 2013-03-28 | Liquid storage box for realizing internal fluid driving by utilizing temperature difference power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310104597.XA CN103204333B (en) | 2013-03-28 | 2013-03-28 | Liquid storage box for realizing internal fluid driving by utilizing temperature difference power source |
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| CN103204333A CN103204333A (en) | 2013-07-17 |
| CN103204333B true CN103204333B (en) | 2014-12-10 |
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| WO2017152393A1 (en) * | 2016-03-09 | 2017-09-14 | Chengdu Science And Technology Development Center Of Caep | Thermoelectric generator based residual heat removal system and method of the same |
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| US5158741A (en) * | 1991-08-16 | 1992-10-27 | General Electric Company | Passive cooling system for top entry liquid metal cooled nuclear reactors |
| CN2777846Y (en) * | 2005-02-05 | 2006-05-03 | 厦门大学 | Temp difference power supply |
| CN2814797Y (en) * | 2005-02-25 | 2006-09-06 | 华南理工大学 | High-density thermoelectric generator |
| CN201656818U (en) * | 2010-01-07 | 2010-11-24 | 上海电力学院 | DC refrigerator driven by solar photovoltaic power and temperature-difference power |
| CN102709374B (en) * | 2012-05-25 | 2015-01-07 | 中海阳能源集团股份有限公司 | Efficient and natural cyclic back radiator for photovoltaic battery panel |
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