CN207489487U - A kind of ocean nuclear power flat reaction heap residual heat removal system - Google Patents
A kind of ocean nuclear power flat reaction heap residual heat removal system Download PDFInfo
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- CN207489487U CN207489487U CN201721392051.9U CN201721392051U CN207489487U CN 207489487 U CN207489487 U CN 207489487U CN 201721392051 U CN201721392051 U CN 201721392051U CN 207489487 U CN207489487 U CN 207489487U
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- Prior art keywords
- liquid tank
- cooling
- nuclear power
- residual heat
- heat removal
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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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- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The utility model discloses a kind of ocean nuclear power flat reaction heap residual heat removal systems, are related to nuclear power unit technical field, including cooling liquid tank and cooling back installation.The utility model forms the driving force of cooling agent cycle by equipment potential difference, reduces the use of active equipment, meets under the operating mode for losing all power, and waste heat is derived to be required；Rupture disk explosion when coolant lock pressure power is increased to certain value, makes cooling liquid tank be connected with seawater, and the cooling agent in liquid tank cooling section is cooled down by seawater, and under marine environmental conditions, cooling water source is sufficient, improves the reliability of system.
Description
Technical field
The utility model is related to nuclear power unit technical fields, and in particular to a kind of ocean nuclear power flat reaction heap waste heat
Discharge system.
Background technology
After the reactor of nuclear power unit is closed down, reactor core is since core power caused by nuclear fission rapidly disappears, and to split
Become the dump power based on product decay heat to still have, and slowly reduce over time, after shutdown a few hours, reactor core remains
Complementary work rate still has the 1% of rated power.Therefore, it is necessary to which the decay heat of reactor core is exported reactor core, otherwise fuel element will be caused
Overheat and damage.In addition, if necessary to which reactor coolant loop is cooled to normal temperature state, decay heat is not only removed, also
It needs cooling agent and the removing of the sensible heat of primary Ioops system.So residual heat removal system is an important peace in nuclear power unit
Total correlation system.
The active residual heat removal system of atomic marine plant configuration at present is in the case where losing all power, active portion
Part cannot work, and cause reactor heat that can not export.Therefore, it attempts to form driving by fluid density contrast and equipment potential difference
Power, the passive residual heat removal technology using Natural Circulation export heat are very necessary.
Existing passive residual heat removal system is mainly used in land nuclear power unit, and the system is mainly by passive residual heat
Heat exchanger and corresponding pipeline, valve and attachment composition are exported, heat exchanger assignment is in material-changing water tank.System operation
When, reactor coolant is drawn by main pipe hot leg, passive residual heat export heat exchanger is flowed through, by the water cooling in material-changing water tank
But after, primary side of steam generator is introduced, after passive residual heat export heat exchanger input a period of time, in material-changing water tank
Water evaporation, steam enter in steel containment vessel, by the wall cooling of containment, finally by reactor waste be discharged into ultimate heat sink-
Air.
But reactor waste row can not be met as the extremely inefficient of low-temperature receiver using containment inner water-tank and air
The demand gone out.Meanwhile the complex environment of ocean can lead to the passive residual heat removal system that material-changing water tank or steam generator form
Stability of uniting is poor.
Utility model content
For defect in the prior art, the purpose of this utility model is to provide a kind of ocean nuclear power platform is anti-
Heap residual heat removal system is answered, heat exchanger effectiveness is high, is adapted to marine environment.
To achieve the above objectives, the technical scheme adopted by the utility model is that：More than a kind of ocean nuclear power flat reaction heap
Hot discharge system, including：
Liquid tank is cooled down, the cooling liquid tank is placed under sea level, and higher than the reactor；It is equipped in the cooling liquid tank
Coolant；The cooling tank wall is equipped with cinclides, and the first rupture disk is equipped in the cinclides；
Cooling back installation, the cooling back installation include circulation cooling circuit and are followed in the circulation cooling circuit
The cooling agent that circulation moves；Reactor cooling section, hot loop section, the liquid tank that the circulation cooling circuit includes recycling connection successively are cold
But section and cold loop section；The reactor cooling section passes through the reactor；The liquid tank cooling section is set on the cooling liquid tank
In interior coolant.
Based on the above technical solution, the coolant is deionized water.
Based on the above technical solution, the liquid tank cooling section includes being equipped with coolant entrance and coolant outlet,
The coolant entrance connects the hot loop section, and the coolant outlet connects the cold loop section.
Based on the above technical solution, partition board is equipped in the cooling liquid tank, the partition board is set on liquid tank cooling section
Between cinclides, the cooling liquid tank is separated into the first liquid tank and the second liquid tank by the partition board, and the partition board is equipped with through-hole,
First liquid tank and the second liquid tank are interconnected by the through-hole.
Based on the above technical solution, the cooling tank wall is equipped with two cinclides, is equipped in the cooling liquid tank
Two drainage tubes a, wherein drainage tube connects first liquid tank and a cinclides；Another drainage tube
Connect second liquid tank and another described cinclides.
Based on the above technical solution, the cooling liquid tank connects an exhaust pipe, and the exhaust outlet is opened in
On sea level, the second rupture disk is equipped at the exhaust outlet.
Based on the above technical solution, isolating valve is equipped between the liquid tank cooling section and cold loop section.
Based on the above technical solution, the isolating valve is is pneumatically isolated valve.
Based on the above technical solution, the liquid tank cooling section uses titanium.
Based on the above technical solution, the liquid tank cooling section outer surface and the cooling liquid tank inner wall are coated with resisting
Marine growth coating.
Compared with prior art, the utility model has the advantage of：
The utility model forms the driving force of cooling agent cycle by equipment potential difference, reduces the use of active equipment, full
Foot is lost under the operating mode of all power, and waste heat is derived to be required；Rupture disk explosion when coolant lock pressure power is increased to certain value, makes
Cooling liquid tank is connected with seawater, and the cooling agent in liquid tank cooling section, under marine environmental conditions, cooling water source are cooled down by seawater
Abundance improves the reliability of system.
Description of the drawings
Fig. 1 is the structure diagram of ocean nuclear power flat reaction heap residual heat removal system in the utility model embodiment；
Fig. 2 is the side schematic view of ocean nuclear power flat reaction heap residual heat removal system in the utility model embodiment.
In figure：1- cooling liquid tanks, 11- cinclides, the first rupture disks of 12-, 13- partition boards, 14- drainage tubes, 2- reactors, 3- are followed
Ring cooling device, 31- circulation cooling circuits, 311- reactor cooling sections, 312- hot loop sections, 313- liquid tank cooling sections, 313a-
Coolant entrance, 313b- coolant outlets, 314- cold loop sections, 315- isolating valves.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
Shown in Figure 1, the utility model embodiment provides a kind of ocean nuclear power flat reaction heap residual heat removal system,
Including：
Liquid tank is cooled down, cooling liquid tank is placed under sea level, and higher than reactor；It cools down and coolant is housed in liquid tank；Cooling
Tank wall is equipped with cinclides, and the first rupture disk is equipped in cinclides；
Cooling back installation, cooling back installation include circulation cooling circuit and circulate in circulation cooling circuit
Cooling agent；Circulation cooling circuit includes the reactor cooling section, hot loop section, liquid tank cooling section and the cold loop that recycle connection successively
Section；Reactor cooling section passes through reactor；Liquid tank cooling section is set in the coolant in cooling liquid tank.Liquid tank cooling section includes setting
There are coolant entrance and coolant outlet, coolant entrance connection hot loop section, coolant outlet connection cold loop section.
The utility model forms the driving force of cooling agent cycle by equipment potential difference, reduces the use of active equipment, full
Foot is lost under the operating mode of all power, and waste heat is derived to be required；Rupture disk explosion when coolant lock pressure power is increased to certain value, makes
Cooling liquid tank is connected with seawater, and the cooling agent in liquid tank cooling section, under marine environmental conditions, cooling water source are cooled down by seawater
Abundance improves the reliability of system.
It cools down and partition board is equipped in liquid tank, partition board is set between liquid tank cooling section and cinclides, and partition board is separated into liquid tank is cooled down
First liquid tank and the second liquid tank, partition board are equipped with through-hole, and the first liquid tank and the second liquid tank are interconnected by through-hole.Partition board can be kept away
Exempt from impact and the external impact for the seawater that liquid tank cooling section directly enters by outside.
Shown in Figure 2, cooling tank wall is equipped with two cinclides；It cools down and two drainage tubes is equipped in liquid tank, wherein one
Drainage tube connects the first liquid tank and a cinclides；Another drainage tube connects the second liquid tank and another cinclides.Drainage tube is used for
Seawater circulation flow passage is formed, strengthens circulating cooling effect.
It cools down liquid tank and connects an exhaust pipe, exhaust outlet is opened on sea level, and it is quick-fried that second is equipped at exhaust outlet
Fragmentation.It cools down liquid tank seawater to evaporate by the coolant heating in liquid tank cooling section, water vapour is drawn out to by exhaust pipe in air.
Isolating valve is equipped between liquid tank cooling section and cold loop section.Isolating valve is is pneumatically isolated valve.It is initial to be pneumatically isolated valve
It is in off state under state, when needing ocean nuclear power flat reaction heap residual heat removal system, is pneumatically isolated valve opening, liquid tank
Cooling section is connected with cold loop section, and ocean nuclear power flat reaction heap residual heat removal system brings into operation.
Coolant is deionized water.It is impregnated in deionized water under liquid tank cooling section original state, reduces seawater pair and set
Standby corrosion.Liquid tank cooling section uses titanium, and liquid tank cooling section outer surface and cooling liquid tank inner wall are coated with anti-marine growth coating,
Corrosion of the seawater to equipment is prevented, while prevents marine growth from entering cooling liquid tank.
The utility model is not limited to the above embodiment, for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can also be made, these improvements and modifications are also considered as this reality
Within novel protection domain.The content not being described in detail in this specification belongs to well known to professional and technical personnel in the field
The prior art.
Claims (10)
1. a kind of ocean nuclear power flat reaction heap residual heat removal system, which is characterized in that including：
Liquid tank (1) is cooled down, the cooling liquid tank (1) is placed under sea level, and higher than the reactor (2)；The cooling liquid tank
(1) coolant is housed in；Described cooling liquid tank (1) wall is equipped with cinclides (11), and the first rupture disk is equipped in the cinclides (11)
(12)；
Cooling back installation (3), the cooling back installation (3) are returned including circulation cooling circuit (31) and in the circulating cooling
The cooling agent circulated in road (31)；Reactor cooling section of the circulation cooling circuit (31) including recycling connection successively
(311), hot loop section (312), liquid tank cooling section (313) and cold loop section (314)；The reactor cooling section (311) passes through
The reactor (2)；The liquid tank cooling section (313) is in the coolant in the cooling liquid tank (1).
2. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：It is described cold
But liquid is deionized water.
3. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：The liquid
Cabin cooling section (313) is including being equipped with coolant entrance (313a) and coolant outlet (313b), the coolant entrance (313a)
The hot loop section (312) is connected, the coolant outlet (313b) connects the cold loop section (314).
4. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：It is described cold
But partition board (13) is equipped in liquid tank (1), the partition board (13) between liquid tank cooling section (313) and cinclides (11), it is described every
The cooling liquid tank (1) is separated into the first liquid tank (1a) and the second liquid tank (1b) by plate (13), and the partition board (13) is equipped with logical
Hole (131), first liquid tank (1a) and the second liquid tank (1b) are interconnected by the through-hole (131).
5. a kind of ocean nuclear power flat reaction heap residual heat removal system as claimed in claim 4, it is characterised in that：It is described cold
But liquid tank (1) wall is equipped with two cinclides (11), two drainage tubes (14) is equipped in the cooling liquid tank (1), wherein described in one
Drainage tube (14) connects first liquid tank (1a) and a cinclides (11)；Described in another drainage tube (14) connection
Second liquid tank (1b) and another described cinclides (11).
6. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：It is described cold
But liquid tank (1) connects an exhaust pipe (15), and exhaust pipe (15) outlet is opened on sea level, exhaust pipe (15) outlet
Place is equipped with the second rupture disk (16).
7. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：The liquid
Isolating valve (315) is equipped between cabin cooling section (313) and cold loop section (314).
8. a kind of ocean nuclear power flat reaction heap residual heat removal system as claimed in claim 7, it is characterised in that：It is described every
From valve (315) to be pneumatically isolated valve.
9. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：The liquid
Cabin cooling section (313) is using titanium.
10. a kind of ocean nuclear power flat reaction heap residual heat removal system as described in claim 1, it is characterised in that：It is described
Liquid tank cooling section (313) outer surface and described cooling liquid tank (1) inner wall are coated with anti-marine growth coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392051.9U CN207489487U (en) | 2017-10-25 | 2017-10-25 | A kind of ocean nuclear power flat reaction heap residual heat removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392051.9U CN207489487U (en) | 2017-10-25 | 2017-10-25 | A kind of ocean nuclear power flat reaction heap residual heat removal system |
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| CN207489487U true CN207489487U (en) | 2018-06-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273115A (en) * | 2018-10-31 | 2019-01-25 | 中国船舶重工集团公司第七〇九研究所 | A kind of the containment heat derivation device and its heat derives method of nuclear power unit |
| CN109712726A (en) * | 2017-10-25 | 2019-05-03 | 中国船舶重工集团公司第七一九研究所 | A kind of ocean nuclear power flat reaction heap residual heat removal system |
| CN111028971A (en) * | 2019-11-26 | 2020-04-17 | 中国船舶重工集团公司第七一九研究所 | Shielding structure capable of maintaining internal and external pressure difference under accident condition |
| CN113345610A (en) * | 2021-05-08 | 2021-09-03 | 中国舰船研究设计中心 | Passive residual heat removal system of heat pipe reactor and control method thereof |
-
2017
- 2017-10-25 CN CN201721392051.9U patent/CN207489487U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712726A (en) * | 2017-10-25 | 2019-05-03 | 中国船舶重工集团公司第七一九研究所 | A kind of ocean nuclear power flat reaction heap residual heat removal system |
| CN109712726B (en) * | 2017-10-25 | 2024-03-26 | 中国船舶重工集团公司第七一九研究所 | Ocean nuclear power platform reactor waste heat discharge system |
| CN109273115A (en) * | 2018-10-31 | 2019-01-25 | 中国船舶重工集团公司第七〇九研究所 | A kind of the containment heat derivation device and its heat derives method of nuclear power unit |
| CN109273115B (en) * | 2018-10-31 | 2023-08-15 | 中国船舶重工集团公司第七一九研究所 | Containment heat-conducting device and heat-conducting method for nuclear power plant |
| CN111028971A (en) * | 2019-11-26 | 2020-04-17 | 中国船舶重工集团公司第七一九研究所 | Shielding structure capable of maintaining internal and external pressure difference under accident condition |
| CN113345610A (en) * | 2021-05-08 | 2021-09-03 | 中国舰船研究设计中心 | Passive residual heat removal system of heat pipe reactor and control method thereof |
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