CN206564132U - A kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir - Google Patents
A kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir Download PDFInfo
- Publication number
- CN206564132U CN206564132U CN201720063804.5U CN201720063804U CN206564132U CN 206564132 U CN206564132 U CN 206564132U CN 201720063804 U CN201720063804 U CN 201720063804U CN 206564132 U CN206564132 U CN 206564132U
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- China
- Prior art keywords
- heat
- link
- heat pipe
- pond
- nuclear power
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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
Abstract
The utility model discloses a kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir, heat including setting gradually initially exports link and at least one heat finally exports link, the heat initially exports link and heat and finally exports link including the interior pond for setting cooling water, and the heat initially exports in the pond of link and is provided with irradiated fuel assembly；The heat initially exports link and the heat transfer of spentnuclear fuel to heat is finally exported into outside heat release after link by heat transfer unit (HTU).The utility model is based on separate heat pipe principle and antigravity heat pipe principle; with seawater etc. for ultimate heat sink; realize the long-term of spentnuclear fuel decay heat, long range, efficient and passive export; evade Spent Fuel Pool under accident conditions and lose cold risk; the safety of irradiated fuel assembly is protected, the safety of nuclear power station is further protected.
Description
Technical field
The utility model is related to a kind of cooling system, specifically, be related to a kind of nuclear power station spent fuel reservoir multistage it is long away from
From passive heat pipe cooling system.
Background technology
In current pressurized-water reactor nuclear power plant, the water in Spent Fuel Pool is flowed out by pump driving cycle by pipeline, is handed over through overheat
Spent Fuel Pool is flowed back to again after parallel operation cooling, takes the decay heat of Spent Fuel Pool out of.This type of cooling, it is desirable to have power supply ability
Ensure the normal operation of pump.Under accident conditions, full factory's dead electricity, pump can not work, original cooling way failure.Then, weary combustion
Material pond will seethe with excitement, be evaporated, and spentnuclear fuel is exposed, and spentnuclear fuel involucrum burns, and causes escape of radioactivity.
Utility model content
The technical problems to be solved in the utility model is that there is provided a kind of multistage energy non-over long distances of nuclear power station spent fuel reservoir
Dynamic heat pipe cooling system.
The utility model solves the technical scheme that its technical problem used：
A kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir, including at the beginning of the heat set gradually
The export link that begins and at least one heat finally export link, and the heat initially exports link and heat, and finally to export link equal
Including the interior pond for setting cooling water, the heat initially exports in the pond of link and is provided with irradiated fuel assembly；At the beginning of the heat
The heat transfer of spentnuclear fuel to heat is finally exported outside heat release after link by the export link that begins by heat transfer unit (HTU).
Further, the heat transfer unit (HTU) is arranged on that heat initially exports link and each heat is finally exported between link,
Including at least one set of separate heat pipe component for being used to be exchanged heat, described heat finally export link end be provided with to
The antigravity heat pipe tube bank of few one group of outside heat release.
Further, when heat finally exports link for two or more, each heat finally exports link and is arranged in parallel.
Further, the heat initially exports between link and heat finally export link and is also associated with least one heat
Intermediate transfer link is measured, heat intermediate transfer link includes the interior pond for setting cooling water, and the heat initially exports the heat of link
Amount is transferred to each heat intermediate transfer link successively by heat transfer unit (HTU) and heat finally exports outside heat release after link.
Further, the heat transfer unit (HTU) is successively set on heat and initially exports link, heat intermediate transfer link, heat
Between final export link, including at least one set of separate heat pipe component for being used to be exchanged heat between adjacent two link, it is described
Heat finally export the end of link and be provided with the antigravity heat pipe tube bank of at least one set of outwards heat release.
Further, when heat intermediate transfer link is two or more, each heat intermediate transfer link serial or parallel connection
Set.
Further, the separate heat pipe component is including the evaporator section in previous link pond, positioned at latter ring
Condensation segment, tedge, down-comer and cycle fluid in economizing basin, tedge two ends described in the condensation segment be each passed through or across
The top of adjacent basin side wall connection evaporator section and condensation segment is crossed, the down-comer two ends are respectively communicated with through adjacent basin side wall
The bottom of evaporator section and condensation segment；The cycle fluid is in the evaporator section, the tedge, the condensation segment, the decline
Flowed in the circulation canal of pipe formation.
Further, in the vertical direction, the position of the evaporator section of the separate heat pipe component condenses section less than it
Put.
Further, the evaporator section of the antigravity heat pipe tube bank is located in pond, and condensation segment is located at outside pond, including many
Root be arranged in parallel and through the heat pipe in pond, and the heat pipe includes being negative pressure ring in shell, liquid-sucking core and working medium, the heat pipe
Border, the liquid-sucking core is made up of capillary-porous material.
Further, the antigravity heat pipe tube bank in the vertical direction, the position of its evaporator section is higher than condensation fragment position.
Compared with prior art, it is described in the utility model to be used for the multistage heat pipe passive over long distances of nuclear power station spent fuel reservoir
Cooling system, has the advantages that：
The utility model can be realized spentnuclear fuel decay heat is non-over long distances by separate heat pipe, pond and antigravity heat pipe
Active to export in the preferable hot trap such as seawater, river or lake water, the long-term safety for realizing Spent Fuel Pool under accident conditions can
Control, protects the safety of nuclear power station.
In addition, cooling system of the present utility model is without manual intervention, automatic start, reduce personnel irradiation risk and
Maloperation risk, simple in construction, high efficient and reliable realizes the unification of economy and security.
Brief description of the drawings
Fig. 1 is the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir of the utility model embodiment 1
Embodiment schematic front view；
Fig. 2 is the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir of the utility model embodiment 1
Embodiment axonometric schematic diagram.
Shown in figure：1- heats initially export link；The ponds of 10- first；11- irradiated fuel assemblies；The separate types of 12- first heat
Tube assembly；The evaporator sections of 121- first；The down-comers of 122- first；The condensation segments of 123- first；The tedges of 124- first；In the middle of 2- heats
Transmission link；The ponds of 20- second；21- the second separate heat pipe components；The evaporator sections of 211- second；The down-comers of 212- second；213-
Second condensation segment；The tedges of 214- second；3- heats finally export link；The ponds of 30- the 3rd；31- antigravitys heat pipe is restrained；
The evaporator sections of 311- the 3rd；The condensation segments of 312- the 3rd.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1
The multistage heat pipe cooling system passive over long distances of a kind of nuclear power station spent fuel reservoir, including successively as shown in Figure 1-2
The heat of setting initially exports link 1, a heat intermediate transfer link 2 and a heat and finally exports link 3, and heat is initial
Export link 1, a heat intermediate transfer link 2 and a heat finally export the of link 3 respectively including built-in cooling water
Irradiated fuel assembly 11, irradiated fuel assembly are provided with one pond 10, the second pond 20, the 3rd pond 30, first pond 10
11 by the cooling water submerged in the first pond 10,
The heat, which is initially exported, is provided with least one set of first separate type between link 1 and heat intermediate transfer link 2
Heat pipe assembly 12, the quantity of the first separate heat pipe component 12 can be according to field condition, the thermal power of such as spentnuclear fuel, separation
Space in the heat-sinking capability and Spent Fuel Pool of formula heat pipe etc. is rationally set.
The first separate heat pipe component 12 includes the first evaporator section 121, the first tedge 124, the first condensation segment
123rd, the first down-comer 122 and cycle fluid, it is subnormal ambient that it is interior.The two ends of first tedge 124 are respectively communicated with evaporator section
1 and first condensation segment 123 top, the two ends of the first down-comer 122 are respectively communicated with the first evaporator section 121 and the first condensation segment
123 bottom.Cycle fluid is in the first evaporator section 121, the first tedge 124, the first condensation segment 123, the shape of the first down-comer 122
Into circulation canal in flow.In the vertical direction, the position of the first evaporator section 121 of the first separate heat pipe component 12
Less than the position of the first condensation segment 123.
First evaporator section 121 of the first separate heat pipe component 12 is arranged on the first pond 10 close to pool wall and bottom of pond
Position, the first condensation segment 123 of the first separate heat pipe component 12 is arranged on the second pond 20 of heat intermediate transfer link 2
It is interior.First down-comer 122 of the first separate heat pipe component 12 passes through the side wall in the first pond 10 and the second pond 20, and not shadow
Ring its sealing.First tedge 124 of the first separate heat pipe component 12 passes through the first pond 10 and the second pond 20, and not shadow
Ring its sealing.It should be understood that according to actual conditions, the tedge 124 of the first separate heat pipe component 12 can also be not passed through
And it is across the top that the first pond 10 connects evaporator section the 1st and the first condensation segment 123 with the second pond 20.
The heat intermediate transfer link 2 and the heat are finally exported between link 3 at least provided with one group second point
From formula heat pipe assembly 21, particular number can be according to field condition, the space in the heat-sinking capability of such as separate heat pipe and pond
Rationally set.
The structure and connected mode of the second separate heat pipe component 21 and the phase of the first separate heat pipe component 12
Together, including the second evaporator section 211, the second tedge 214, the second condensation segment 213, the second down-comer 212 and cycle fluid, in it
For subnormal ambient.
Second evaporator section 211 of the second separate heat pipe component 21 is arranged in the second pond 20, the second separate type
Second condensation segment 213 of heat pipe assembly 21 is arranged on the heat and finally exported in the 3rd pond 30 of link 3.Second separate type
Second down-comer 212 of heat pipe assembly 21 passes through the second pond 20 and the 3rd pond 30, and does not influence it to seal.Described second point
The second tedge 214 from formula heat pipe assembly 21 passes through the second pond 20 and the 3rd pond 30, and does not influence it to seal.It can manage
Solution, according to actual conditions, the second tedge 214 of the second separate heat pipe component 21 can also be not passed through and be across second
The pond 30 of pond 20 and the 3rd.
The end that described heat finally exports link 3 is provided with the antigravity heat pipe tube bank of at least one set of outwards heat release
31.3rd evaporator section 311 of antigravity heat pipe tube bank 31 is arranged in the 3rd pond 30, and the of antigravity heat pipe tube bank 31
Three condensation segments 312 are set in the seawater.The quantity of antigravity heat pipe tube bank 31 can be set according to actual needs.
The antigravity heat pipe tube bank 31 includes many and be arranged in parallel and through the heat pipe in the 3rd pond 30, and heat pipe includes pipe
It is subnormal ambient in shell, liquid-sucking core and working medium, heat pipe, liquid-sucking core is made up of capillary-porous material.Antigravity heat pipe tube bank 31 exists
On vertical direction, the position of the 3rd evaporator section 311 is higher than the position of the 3rd condensation segment 312.
The operation principle and process of the present embodiment are specific as follows：
In original cooling system normal work, the temperature in the first pond 10 is less than the startup temperature of the first separate heat pipe 12
Degree, the working medium in the first separate heat pipe 12 is not undergone phase transition, without heat transfer, nuclear power station spent fuel reservoir multistage it is long away from
Do not worked from passive heat pipe cooling system.
Under accident conditions, cold, water temperature rise, when temperature reaches the startup of the first separate heat pipe 12 is lost in the first pond 10
During temperature, the first evaporator section 121 of the first separate heat pipe 12 absorbs heat, and its internal working medium boiling vaporization, steam passes through first
Tedge 124 enters the first condensation segment 123, to the heat release of the second pond 20, steam condensation, and the is returned to by the first down-comer 122
One evaporator section 121, so circulation are more than, complete the lasting export of heat.Due to vapour density is small and condensate liquid density is big, and the
Circulating for working medium can be achieved higher than the first evaporation fragment position in one condensation fragment position in the presence of density contrast and potential difference, real
Existing lasting export of the heat from the 10 to the second pond of the first pond 20.
Water in second pond 20 is heated, temperature rise, when temperature reaches the start-up temperature of the second separate heat pipe 21
When, the second evaporator section 211 of the second separate heat pipe 21 absorbs heat, and its internal working medium boiling vaporization, steam rises by second
Pipe 214 enters the second condensation segment 213, and to the heat release of the 3rd pond 30, steam condensation returns to the second steaming by the second down-comer 212
Section 211 is sent out, so circulation is more than, completes the lasting export of heat.
Water now in the 3rd pond 30 is heated, temperature rise, when temperature reaches the start-up temperature of antigravity heat pipe 31
When, the 3rd evaporator section 311 of antigravity heat pipe 31 absorbs heat, its internal working medium boiling vaporization, and steam enters the by vapor chamber
Three condensation segments 312, to seawater heat release, steam condensation returns to the 3rd evaporator section 311, so by the capillary force effect of liquid-sucking core
Circulation is more than, completes the lasting export of heat.In addition to seawater, river, lake water etc. can the water source of Natural Circulation or flowing also make
For low-temperature receiver.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：The heat of the present embodiment initially exports link 1 and heat is finally exported
Do not have heat intermediate transfer link 2 between link 3, the heat that the heat initially exports link 1 passes through the first separate type heat
Tube assembly 12 is transferred directly to heat and finally exports the heat release into seawater after link 3, and simple in construction, cost is low.
Embodiment 3
The present embodiment and the difference of embodiment 1 are：The quantity that the heat finally exports link 3 is two or more, respectively
Individual heat finally exports link 3 and is set up in parallel, and each heat is finally exported between link 3 and heat intermediate transfer link 2 respectively
Conducted heat by some second separate heat pipe components 21, link 3, Ke Yiqi is finally exported by being set up in parallel multiple heats
To the purpose for accelerating heat exchange efficiency.
Embodiment 4
The present embodiment and the difference of embodiment 1 are：The quantity of the heat intermediate transfer link 2 is two or more, respectively
Individual heat intermediate transfer link 2 is set up in parallel, and each heat intermediate transfer link 2 passes through at least the first separate heat pipe component 11
At least the second separate heat pipe component 21 initially exports link 1 and heat with heat and finally exports link 3 respectively to be exchanged heat,
By being set up in parallel multiple heat intermediate transfer links 2, the purpose for accelerating heat exchange efficiency can be played.
Embodiment 5
The present embodiment and the difference of embodiment 4 are：Each heat intermediate transfer link 2 is arranged in series, in each heat
Between exchanged heat successively by least one set of separate heat pipe component between transmission link 2, the mesh of heat exchange over long distances can be played
's.
Above example only to illustrate technical concept of the present utility model and feature, can not limit guarantor of the present utility model
Protect scope.All equivalent changes and modifications done with the utility model right, all should belong to the utility model right
It is required that covering scope.
Claims (10)
1. the multistage heat pipe cooling system passive over long distances of a kind of nuclear power station spent fuel reservoir, it is characterised in that including setting successively
The heat put initially exports link (1) and at least one heat finally exports link (3), and the heat initially exports link (1)
Link (3) is finally exported with heat includes the interior pond for setting cooling water, and the heat is initially exported to be set in the pond of link (1)
It is equipped with irradiated fuel assembly (11)；The heat initially exports link (1) by heat transfer unit (HTU) by the heat transfer of spentnuclear fuel to heat
Final export link (3) the outside heat release afterwards of amount.
2. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 1, its feature
It is：The heat transfer unit (HTU) is arranged on that heat initially exports link (1) and each heat is finally exported between link (3), including extremely
Lack one group of separate heat pipe component for being used to be exchanged heat, the end that described heat finally exports link (3) is provided with least
The antigravity heat pipe tube bank (31) of one group of outside heat release.
3. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 1, its feature
It is：When heat finally exports link (3) for two or more, each heat finally exports link (3) and is arranged in parallel.
4. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 1, its feature
It is：The heat initially export link (1) and heat finally export link (3) between be also associated with the middle of at least one heat
Transmission link (2), heat intermediate transfer link (2) includes the interior pond for setting cooling water, and the heat initially exports link (1)
Heat is transferred to each heat intermediate transfer link (2) by heat transfer unit (HTU) successively and heat finally exports link (3) and outwards put afterwards
Heat.
5. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 4, its feature
It is：The heat transfer unit (HTU), which is successively set on heat and initially exports link (1), heat intermediate transfer link (2), heat, finally leads
Go out between link (3), including at least one set of separate heat pipe component for being used to be exchanged heat between adjacent two link, described heat
The end of the final export link (3) of amount is provided with the antigravity heat pipe tube bank (31) of at least one set of outwards heat release.
6. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 4, its feature
It is：When heat intermediate transfer link (2) is two or more, each heat intermediate transfer link (2) serial or parallel connection is set.
7. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 2 or 5, it is special
Levy and be：The separate heat pipe component is including the evaporator section in previous link pond, in latter link pond
Condensation segment, tedge, down-comer and cycle fluid, tedge two ends described in the condensation segment are each passed through or across adjacent pond
The top of side wall connection evaporator section and condensation segment, the down-comer two ends are respectively communicated with evaporator section and cold through adjacent basin side wall
The bottom of solidifying section；The cycle fluid is in following that the evaporator section, the tedge, the condensation segment, the down-comer are formed
Flowed in ring passage.
8. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 7, its feature
It is：In the vertical direction, the position of the evaporator section of the separate heat pipe component condenses fragment position less than it.
9. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 2 or 5, it is special
Levy and be：The evaporator section of the antigravity heat pipe tube bank (31) is located in pond, and condensation segment is located at outside pond, including many parallel
Set and through the heat pipe in pond, the heat pipe includes being subnormal ambient in shell, liquid-sucking core and working medium, the heat pipe, described
Liquid-sucking core is made up of capillary-porous material.
10. the multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir according to claim 9, its feature
It is：The antigravity heat pipe restrains (31) in the vertical direction, and the position of its evaporator section is higher than condensation fragment position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720063804.5U CN206564132U (en) | 2017-01-19 | 2017-01-19 | A kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720063804.5U CN206564132U (en) | 2017-01-19 | 2017-01-19 | A kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564132U true CN206564132U (en) | 2017-10-17 |
Family
ID=60028968
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720063804.5U Expired - Fee Related CN206564132U (en) | 2017-01-19 | 2017-01-19 | A kind of multistage heat pipe cooling system passive over long distances of nuclear power station spent fuel reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564132U (en) |
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2017
- 2017-01-19 CN CN201720063804.5U patent/CN206564132U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20210119 |