CN209056292U - Spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system - Google Patents
Spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system Download PDFInfo
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- CN209056292U CN209056292U CN201821346256.8U CN201821346256U CN209056292U CN 209056292 U CN209056292 U CN 209056292U CN 201821346256 U CN201821346256 U CN 201821346256U CN 209056292 U CN209056292 U CN 209056292U
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- cooling system
- fuel
- spent
- power plant
- air cooler
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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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Abstract
The utility model discloses a kind of spent nuclear fuel in nuclear power plant pond emergency cooling systems, comprising: generating set, circulating cooling pump and the air cooler being set on same mobile carrying platform；Generating set is pumped by service cable with circulating cooling and air cooler is connect, for providing power for circulating cooling pump and air cooler, the entrance of circulating cooling pump is connected by the intake of water pipeline and the former cooling system of Spent Fuel Pool, the outlet of circulating cooling pump is connected by the entrance of connecting pipeline and air cooler, and the outlet of air cooler conveys water after cooling to Spent Fuel Pool by return piping；When the former cooling system of Spent Fuel Pool breaks down, generating set drives circulating cooling pump and air cooler work, the water of the Spent Fuel Pool of introducing is delivered to air cooler by connecting pipeline and cooled down by circulating cooling pump, and air cooler is transmitted back to Spent Fuel Pool after cooling down to water.Compared with the existing technology, the utility model emergency cooling system is cooled down without shower water.
Description
Technical field
The utility model belongs to nuclear power field, and more specifically, the utility model relates to a kind of spent nuclear fuel in nuclear power plant ponds
Emergency cooling system and emergency cooling system.
Background technique
Irradiated fuel assembly in nuclear power plant has certain decay heat in Spent Fuel Pool, needs Spent Fuel Pool cooling system
System cools down it, maintains sump water temperature in certain temperature hereinafter, realize prevents pond temperature excessively high in turn under nominal situation
Equipment is damaged, inhibits Spent Fuel Pool boils, Spent Fuel Pool water is prevented to be evaporated, fuel assembly is exposed to melt under accident conditions
It ruins, prevents that a large amount of radioactive substances is caused to leak.
Spent Fuel Pool cooling system (PTR) stream in existing million kilowatt PWR nuclear power plant, in nuclear auxiliary building
Journey schematic diagram circulating cooling pump and heat exchanger and supporting pipelines as shown in Figure 1, be mainly made of.In nuclear power plant's accidental conditions
And under design basis accident, the operation of PTR system keeps Spent Fuel Pool water temperature to be lower than a certain limit value.
However, in the case where the even full factory of full factory's power loss occurs and loses alternating current beyond design basis accident, existing PTR system electricity
Dynamic equipment will stop transport because running out of steam power supply, and cooling accuse of Spent Fuel Pool is interrupted, and irradiated fuel assembly decay heat will lead to weary
Fuel pit water reaches boiling within a few hours.If Spent Fuel Pool water boils for a long time, steam carries radioactive substance to weary
Fuel pit upper space and neighbouring workshop disperse, deteriorate operator's working environment；On the other hand, boiling leads to spentnuclear fuel water
Water rapid evaporation cannot such as continue to supplement enough water, will lead to pond liquid level and be gradually reduced, and irradiated fuel assembly is exposed concurrent
It is raw to melt down, it causes extensive radioactive substance uncontrollable and is discharged to outside.
Some spent nuclear fuel in nuclear power plant pond emergency cooling systems for being able to solve the above problem are provided in the prior art, but
Cooling equipment is closed cooling tower, needs shower water and persistently supplies the refrigerating function for being just able to achieve Spent Fuel Pool water, makes
At the waste of water resource, and occupied space.
In view of this, carrying out cooling without shower water it is necessory to provide one kind, structure is simple and convenient to operate, can be quickly
The spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system to put into operation.
Utility model content
The purpose of utility model of the utility model is, overcome the deficiencies of the prior art and provide it is a kind of without shower water into
The spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system that row cooling, structure are simple and convenient to operate, can quickly put into operation
System.
To achieve the goals above, the utility model provides a kind of spent nuclear fuel in nuclear power plant pond emergency cooling system, comprising:
Generating set, circulating cooling pump and the air cooler being set on same mobile carrying platform；The generating set passes through power supply electricity
Cable is pumped with the circulating cooling and the air cooler is connect, for providing power, the circulation for circulating cooling pump and air cooler
The entrance of cooling pump is connected by the intake of water pipeline and the former cooling system of Spent Fuel Pool, the circulating cooling pump
Outlet is connect by connecting pipeline with the entrance of the air cooler, and the outlet of the air cooler passes through return piping to the weary combustion
Expect that pond conveys water after cooling；
When the former cooling system of the Spent Fuel Pool breaks down, the generating set drives the circulating cooling pump
With air cooler work, circulating cooling pump by the water of the Spent Fuel Pool of introducing by connecting pipeline be delivered to air cooler progress it is cold
But, the air cooler is transmitted back to the Spent Fuel Pool after cooling down to the water.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, the generating set is bavin
Oily generating set, and be connected with reserve fuel tank and automatic oil recharging device, by automatic oil recharging device from reserve fuel tank to generator
The automatic repairing of included fuel tank of group.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, the generating set is bavin
Oily generating set, and it is connected with reserve fuel tank, the included fuel tank of the reserve fuel tank and generating set is integrated.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, set in the connecting pipeline
It is equipped with insulating layer.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, the spent nuclear fuel in nuclear power plant
Pond emergency cooling system further includes lighting apparatus, and is powered by the battery that generating set carries.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, the spent nuclear fuel in nuclear power plant
Pond emergency cooling system further includes shielding case body, and the shielding case body is covered on the outer of the generating set and circulating cooling pump
Portion.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, set on the shielding case body
It is equipped with control panel, the air cooler is provided with blower, the control panel and the generating set, circulating cooling pump, air cooler
Blower is connected with lighting apparatus.
As a kind of improvement of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system, set in the connecting pipeline
It is equipped with regulating valve.
To achieve the goals above, the utility model additionally provides a kind of spent nuclear fuel in nuclear power plant pond emergency cooling system,
Including Spent Fuel Pool, spent nuclear fuel in nuclear power plant pond emergency cooling system further includes spent nuclear fuel in nuclear power plant water described above
Pond emergency cooling system.
Compared with the existing technology, the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system tool
There are following advantageous effects:
1) by the way that generating set, circulating cooling pump and air cooler to be integrated on a mobile carrying platform, each equipment room
It is fixedly connected, device integration is higher, and each equipment coordination operation is convenient and the speed that puts into operation is fast；
2) only it need to be not necessarily to shower water, save water resource, while saving mobile fortune using air cooler as cooling equipment
Space on carrying platform improves the availability of device；
3) it by the way that generating set, circulating cooling pump and air cooler to be integrated on a mobile carrying platform, can be used as solely
Vertical refrigerating module carries out strange land storage and puts into operation, and improves the mobility of device, and can guarantee device not by Power Plant Accident
It influences, improves the use scope of device；
4) structure is simple, easy to use.
Detailed description of the invention
With reference to the accompanying drawings and detailed description, to the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system and
Emergency cooling system is described in detail, in which:
Fig. 1 is the structural schematic diagram of existing Spent Fuel Pool cooling system.
Fig. 2 is the structural schematic diagram of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system；
Fig. 3 is the structural schematic diagram of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system.
Appended drawing reference:
10- moves carrying platform；12- generating set；13- service cable；120- reserve fuel tank；14- circulating cooling pump；
15- service cable；16- air cooler；18- control panel；L1- water pipeline；L2- connecting pipeline；L3- return piping；L4- entrance
Pipeline；L5- outlet line；L6- metal hose；L7- metal hose；4- spent nuclear fuel in nuclear power plant pond emergency cooling system；5- is weary
Fuel pit；6- original cooling system；7- spent nuclear fuel in nuclear power plant pond emergency cooling system.
Specific embodiment
In order to be more clear the purpose of this utility model, technical solution and its technical effect, below in conjunction with attached drawing and tool
Body embodiment, the present invention will be further described in detail.It should be understood that specific reality described in this specification
Mode is applied just for the sake of explaining the utility model, is not intended to limit the utility model.
It please refers to shown in Fig. 2 and Fig. 3, the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system includes: to be set to
Generating set 12, circulating cooling pump 14 and air cooler 16 on same mobile carrying platform 10；Generating set 12 passes through power supply electricity
Cable 13 is connect with circulating cooling pump 14, and generating set 12 is connect by service cable 15 with air cooler 16, for being circulating cooling
Pump 14 and air cooler 16 provide power, and the entrance of circulating cooling pump 14 is cooling by the original of water intaking pipeline L1 and Spent Fuel Pool 5
The intake of system 6 connects, and the outlet of circulating cooling pump 14 is connect by connecting pipeline L2 with the entrance of air cooler 16, air cooler
16 outlet conveys water after cooling to Spent Fuel Pool 5 by return piping L3；
When the former cooling system 6 of Spent Fuel Pool 5 breaks down, generating set 12 drives circulating cooling pump 14 and sky
Cooler 16 works, and the water of the Spent Fuel Pool 5 of introducing is delivered to air cooler 16 by connecting pipeline L2 by circulating cooling pump 14
It is cooled down, air cooler 16 is transmitted back to Spent Fuel Pool 5 after cooling down to water.
Specifically, when the even full factory of full factory's power loss, which occurs, for nuclear power plant loses alternating current and/or lose ultimate heat sink, weary combustion
Expect that 6 refrigerating function of former cooling system in pond 5 is lost, the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system 4 can be thrown
Enter to use, at this point, temperature is up to the water in 100 DEG C of Spent Fuel Pool 5, draw from the inlet duct L4 of circulating cooling pump 14
Enter, pumps 14 power transmissions by circulating cooling, cooled down into air cooler 16, after temperature is reduced to suitable temperature, from air-cooled
The outlet line L5 of device 16 returns to Spent Fuel Pool 5, fast implements the cooling to water in Spent Fuel Pool 5.
Mobile carrying platform 10 using can movable independently device realize that such as semi-trailer meets road conditions,
Strange land storage can be achieved and support, improve the mobility of device.
Generating set 12 is diesel generating set, is connected with reserve fuel tank 120 and automatic oil recharging device (not shown go out), from
Dynamic recharging oil device is the oil pump automatically controlled, and when the included fuel level in tank of diesel-driven generator is low, automatic oil recharging device is (not shown
Out) can from reserve fuel tank 120 (oil reserve for run 16 hours under diesel-driven generator rated power) to diesel-driven generator from
The band automatic repairing of fuel tank.
As the another embodiment of the utility model, reserve fuel tank 120 can also be with the included fuel tank of generating set 12
Integrated, when becoming one, no setting is required automatic oil recharging device is easy to carry.
Air cooler 16 is conventional air cooler, is provided with blower and tube bank, and the high temperature water in Spent Fuel Pool 5 is by pipe
Shu Shi is constantly rotated by blower, and the vortex of generation is constantly drawn air into, and cold air transmits heat after contacting with tube bank, will
Hot water in tube bank is constantly cooling, and the hot water in restrain passes through the outlet line of air cooler 16 after being cooled to suitable temperature
L5 and return piping L3 are transmitted back to Spent Fuel Pool 5 again, are realized with this to the water under accident conditions in Spent Fuel Pool 5
Cooling.Connecting pipeline L2 between circulating cooling pump 14 and air cooler 16 is usually that stainless steel is fixedly connected with pipeline, air-cooled
16 hot side entrance of device, temperature is higher when due to operation, to scald operator when preventing operation, to this part connecting pipeline
L2 wraps up insulating layer (not shown go out), can also wrap up insulating layer, connecting pipeline as needed in the other positions of connecting pipeline L2
Regulating valve (figure is unlabeled), the flow of the hot water for being adjusted into air cooler 16 are provided on L2.
Further, the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system further includes that lighting apparatus is (not shown
Out), lighting apparatus setting is carried out on the ceiling of shielding case body (not shown go out) inside by the battery that diesel generating set carries
Power supply, facilitates operator's night work.
The utility model spent nuclear fuel in nuclear power plant pond emergency cooling system further includes shielding case body (not shown go out), shielded box
Body (not shown go out) is covered on the outside of generating set 12 and circulating cooling pump 14, for protecting generating set 12 and circulating cooling
Pump 14 prevents corrosion of the external environment to generating set 12 and circulating cooling pump 14.
Control panel 18 is additionally provided on shielding case body (not shown go out), control panel 18 and generating set 12, circulating cooling pump
14, the blower (not shown go out) of air cooler 16 and lighting apparatus (not shown go out) connection, and pass through switch control generating set 12,
The operation of circulating cooling pump 14, the blower of air cooler 16 (not shown go out) and lighting apparatus (not shown out).It is controlled by setting
Disk 18 can rapidly operate whole device, can open relevant device without walking about between all parts, save behaviour
Make the time, improves work efficiency.
Please continue to refer to shown in Fig. 2 and Fig. 3, the circulation of the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system 4
The inlet duct L4 of cooling pump 14 is connected by metal hose L6 with water pipeline L1, and the outlet line L5 of air cooler 16 passes through gold
Belong to hose L7 to connect with return piping L3, metal hose L7 can be replaced with rubber hose.
The utility model spent nuclear fuel in nuclear power plant pond emergency cooling system 4 is independent cooling die block, independent one cooling mould
Block puts into operation, and heat extraction effect, the power source provided compared with the existing technology and cooling equipment point can be generated to Spent Fuel Pool 5
It is not mounted on different vehicle-carried mobile platforms, for the emergency cooling system that field joint is needed when putting into operation, independence is stronger, mentions
The availability of high emergency cooling system.Meanwhile the utility model spent nuclear fuel in nuclear power plant pond 4 need of emergency cooling system pass through sky
Cooler 16 is cooled down, and without shower water, improves the availability of device.
Based on the application advantage of above-mentioned spent nuclear fuel in nuclear power plant pond emergency cooling system 4, the utility model additionally provides one
Kind includes that the spent nuclear fuel in nuclear power plant pond emergency cooling system 7 of above-mentioned spent nuclear fuel in nuclear power plant pond emergency cooling system 4 (please refers to
Fig. 3).
As shown in figure 3, the spent nuclear fuel in nuclear power plant pond cooling system 7 of the utility model includes Spent Fuel Pool 5, weary combustion
The 6 part pipeline of former cooling system and spent nuclear fuel in nuclear power plant pond provided by the embodiment of the utility model for expecting pond 5 answer chilling
But device 4, wherein spent nuclear fuel in nuclear power plant pond emergency cooling system 4 is arranged in parallel with former cooling system 6, is both used for
Spent Fuel Pool 5 is cooled down, unlike, emergency cooling in spent nuclear fuel in nuclear power plant pond provided by the embodiment of the utility model
Device 4 occurs beyond design basis accident in nuclear power plant and causes work when former cooling system 6 breaks down.
It should be noted that spent nuclear fuel in nuclear power plant pond cooling system 7 may include one in the utility model embodiment
Or multiple spent nuclear fuel in nuclear power plant ponds emergency cooling system 4, when the spent nuclear fuel in nuclear power plant pond cooling system 7 includes multiple nuclear powers
When factory's Spent Fuel Pool emergency cooling system 4, it is arranged in parallel between multiple spent nuclear fuel in nuclear power plant ponds emergency cooling system 4, and
And since the spent nuclear fuel in nuclear power plant pond emergency cooling system 4 of the utility model is independent cooling die block, according to spentnuclear fuel
4 isolated operation of spent nuclear fuel in nuclear power plant pond emergency cooling system or two, even may be selected in the thermal load demands in pond 5
4 paired running of multiple spent nuclear fuel in nuclear power plant ponds emergency cooling system.
Compared with the existing technology, the utility model spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system tool
There are following advantageous effects:
1) by the way that generating set 12, circulating cooling pump 14 and air cooler 16 to be integrated on a mobile carrying platform 10,
Each equipment room is fixedly connected, and device integration is higher, and each equipment coordination operation is convenient and the speed that puts into operation is fast；
2) only it need to be not necessarily to shower water, save water resource, while saving movement using air cooler 16 as cooling equipment
Space on carrying platform 10 improves the availability of device；
3) by the way that generating set 12, circulating cooling pump 14 and air cooler 16 to be integrated on a mobile carrying platform 10,
It can be used as independent refrigerating module to carry out strange land storage and put into operation, improve the mobility of device, and can guarantee device not by electricity
The influence of factory's accident improves the use scope of device；
4) structure is simple, easy to use.
According to above-mentioned principle, the utility model can also be made appropriate changes and modifications to the above embodiments.Therefore,
The utility model is not limited to specific embodiment disclosed and described above, to some modifications and changes of the utility model
It should also be as falling into the protection scope of the claims of the present utility model.In addition, although having been used in this specification some specific
Term, these terms are merely for convenience of description, not to the utility model constitute any restrictions.
Claims (9)
1. a kind of spent nuclear fuel in nuclear power plant pond emergency cooling system characterized by comprising be set to same mobile carrying platform
On generating set, circulating cooling pump and air cooler；The generating set is by service cable and the circulating cooling pumps and institute
Air cooler connection is stated, for providing power for circulating cooling pump and air cooler, the entrance of the circulating cooling pump passes through aqueduct
The intake of the former cooling system of line and Spent Fuel Pool connects, the outlet of the circulating cooling pump by connecting pipeline with it is described
The entrance of air cooler connects, and the outlet of the air cooler conveys pond after cooling to the Spent Fuel Pool by return piping
Water；
When the former cooling system of the Spent Fuel Pool breaks down, the generating set drives the circulating cooling pump and sky
The water of the Spent Fuel Pool of introducing is delivered to air cooler by connecting pipeline and cooled down by cooler work, circulating cooling pump,
The air cooler is transmitted back to the Spent Fuel Pool after cooling down to the water.
2. spent nuclear fuel in nuclear power plant pond according to claim 1 emergency cooling system, which is characterized in that the generating set
For diesel generating set, and it is connected with reserve fuel tank and automatic oil recharging device, by automatic oil recharging device from reserve fuel tank to hair
The automatic repairing of included fuel tank of motor group.
3. spent nuclear fuel in nuclear power plant pond according to claim 1 emergency cooling system, which is characterized in that the generating set
For diesel generating set, and it is connected with reserve fuel tank, the included fuel tank of the reserve fuel tank and generating set is integrated.
4. spent nuclear fuel in nuclear power plant pond according to claim 1 emergency cooling system, which is characterized in that the connecting pipeline
On be provided with insulating layer.
5. spent nuclear fuel in nuclear power plant pond according to claim 1 emergency cooling system, which is characterized in that the nuclear power plant is weary
Fuel pit emergency cooling system further includes lighting apparatus, and is powered by the battery that generating set carries.
6. spent nuclear fuel in nuclear power plant pond according to claim 5 emergency cooling system, which is characterized in that the nuclear power plant is weary
Fuel pit emergency cooling system further includes shielding case body, and the shielding case body is covered on the generating set and circulating cooling pump
Outside.
7. spent nuclear fuel in nuclear power plant pond according to claim 6 emergency cooling system, which is characterized in that the shielding case body
On be provided with control panel, the air cooler is provided with blower, the control panel and the generating set, circulating cooling pump, air-cooled
The blower of device is connected with lighting apparatus.
8. spent nuclear fuel in nuclear power plant pond according to claim 1 emergency cooling system, which is characterized in that the connecting pipeline
On be provided with regulating valve.
9. a kind of spent nuclear fuel in nuclear power plant pond emergency cooling system, including Spent Fuel Pool, which is characterized in that the nuclear power plant is weary
Fuel pit emergency cooling system further includes at least one spent nuclear fuel in nuclear power plant pond as claimed in any one of claims 1 to 8
Emergency cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346256.8U CN209056292U (en) | 2018-08-20 | 2018-08-20 | Spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346256.8U CN209056292U (en) | 2018-08-20 | 2018-08-20 | Spent nuclear fuel in nuclear power plant pond emergency cooling system and emergency cooling system |
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| CN209056292U true CN209056292U (en) | 2019-07-02 |
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ID=67047674
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063462A (en) * | 2018-10-25 | 2020-04-24 | 中广核研究院有限公司 | Self-generating cooling system after spent fuel pool accident |
-
2018
- 2018-08-20 CN CN201821346256.8U patent/CN209056292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063462A (en) * | 2018-10-25 | 2020-04-24 | 中广核研究院有限公司 | Self-generating cooling system after spent fuel pool accident |
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