CN209591543U - A kind of Spent Fuel Pool cooling system - Google Patents
A kind of Spent Fuel Pool cooling system Download PDFInfo
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- CN209591543U CN209591543U CN201920074691.8U CN201920074691U CN209591543U CN 209591543 U CN209591543 U CN 209591543U CN 201920074691 U CN201920074691 U CN 201920074691U CN 209591543 U CN209591543 U CN 209591543U
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- cooling tube
- cooling
- spent fuel
- fuel pool
- heat exchanger
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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 provides a kind of Spent Fuel Pool cooling system, the Spent Fuel Pool cooling system includes: at least the second cooling tube of two first cooling tubes and at least one, the first end of first cooling tube is intake, intake is set on the side wall of Spent Fuel Pool, the second end of first cooling tube is set in Spent Fuel Pool, is disposed with the first isolating valve, the first water pump and first heat exchanger along the direction of the first end from the first cooling tube to second end in the first cooling tube；The first end of second cooling tube is connected to the first position of the first cooling tube, the second end of second cooling tube is connected to the second position of the first cooling tube, is disposed with the second isolating valve, the second water pump and second heat exchanger along the direction of the first end from the second cooling tube to second end in the second cooling tube.In this way, having simplified the structure of Spent Fuel Pool cooling system, system reliability is improved, and reduce use cost.
Description
Technical field
The utility model relates to Spent Fuel Pool technical field, in particular to a kind of Spent Fuel Pool cooling system.
Background technique
Spent Fuel Pool is an important component of nuclear power station, and cooling system can be generally provided in Spent Fuel Pool
System.The cooling system of Spent Fuel Pool is to take the heat that spentnuclear fuel decay generates out of when the generating set of nuclear power station operates normally
Amount, so that the temperature in Spent Fuel Pool is maintained within normal range.In practice, the cooling system of Spent Fuel Pool
In generally comprise more cooling tubes, and individual intake, water intake conduit, cooling water pump and heat are provided in each cooling tube
The components such as exchanger, it is seen then that the structure more redundancy of the cooling system of current Spent Fuel Pool, and higher operating costs.
Utility model content
The utility model embodiment is designed to provide a kind of Spent Fuel Pool cooling system, solves current spentnuclear fuel
The structure of the cooling system in pond more redundancy, and the problem of higher operating costs.
In order to achieve the above object, the utility model embodiment provides a kind of Spent Fuel Pool cooling system, is applied to core
In island, Spent Fuel Pool cooling system includes:
The first end of at least two first cooling tubes, first cooling tube is intake, and the intake is set to weary
On the side wall of fuel pit, the second end of first cooling tube is set in the Spent Fuel Pool, first cooling tube
In along the direction of first end to second end from first cooling tube be disposed with the first isolating valve, the first water pump and
One heat exchanger；
The first position of the second cooling tube of at least one, the first end of second cooling tube and first cooling tube connects
Logical, the second end of second cooling tube is connected to the second position of first cooling tube, and the first position is described the
Position between the first end of one cooling tube and first isolating valve, the second position are the first heat exchanger and institute
State the position between the second end of the first cooling tube, in second cooling tube along the first end from second cooling tube to
The direction of second end is disposed with the second isolating valve, the second water pump and second heat exchanger.
Optionally, set gradually that there are two the first isolating valve, first water pump and described the in first cooling tube
One heat exchanger, on first cooling tube, and the position between described two first isolating valves is provided with the first connection
Mouthful, the first end of second cooling tube is connected to first communication port；
On first cooling tube, and between the first heat exchanger and the second end of first cooling tube
Position is provided with the second communication port, and the second end of second cooling tube is connected to second communication port.
Optionally, the first end of second cooling tube is connected to first communication port by two the second isolating valves,
The second end of second cooling tube is connected to second communication port by second isolating valve.
Optionally, in first cooling tube, and between the first heat exchanger and second communication port
Position is provided with first flowmeter；
In second cooling tube, and between the second heat exchanger and the second end of second cooling tube
Position is provided with second flowmeter.
Optionally, in first cooling tube, and the position between the first flowmeter and second communication port
It installs and is equipped with first flow regulating device；
In second cooling tube, and the position between the second flowmeter and the second end of second cooling tube
It installs and is equipped with second flow regulating device.
Optionally, the first isolating valve, the first water pump and the first flowmeter in first cooling tube respectively with it is described
Safety level power supply column electrical connection in nuclear island；And/or
The second isolating valve, the second water pump and second flowmeter in second cooling tube is respectively and in the nuclear island
One non-security grade power supply column electrical connection.
Optionally, the Spent Fuel Pool cooling system further includes backup power source, first in first cooling tube every
It is electrically connected respectively with the backup power source from valve, the first water pump and first flowmeter.
Optionally, switching power supply column switching device, the power supply column switching device are additionally provided in second cooling tube
For the second isolating valve, the second water pump and the second flowmeter in second cooling tube to be supplied by the non-security grade power supply column
Cutting shifts to the safety level power supply column power supply.
Optionally, the safety level cooling water being connected in each first heat exchanger in the nuclear island；Second heat
Exchanger is connected with one non-security grade of cooling water in the nuclear island.
Optionally, it in first cooling tube, and is handed in each side position of first water pump and first heat
Each side position of parallel operation is provided with the first control valve；
In second cooling tube, and in each side position of second water pump and the second heat exchanger
Each side position is provided with the second control valve.
Optionally, the second end of first cooling tube is connected with siphon destructive device and check-valves.
Optionally, the Spent Fuel Pool cooling system further includes branch pipe, the branch pipe respectively with first cooling tube
It is connected to second cooling tube.
Optionally, setting height of the intake of any two first cooling tubes on the side wall of the Spent Fuel Pool be not
Together.
A technical solution in above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
A kind of Spent Fuel Pool cooling system provided by the embodiment of the utility model, comprising: at least two first cooling tubes
First end with the second cooling tube of at least one, the first cooling tube is intake, and intake is set to the side wall of Spent Fuel Pool
On, the second end of the first cooling tube is set in Spent Fuel Pool, along the first end from the first cooling tube in the first cooling tube
The first isolating valve, the first water pump and first heat exchanger are disposed with to the direction of second end；The first end of second cooling tube
It being connected to the first position of the first cooling tube, the second end of the second cooling tube is connected to the second position of the first cooling tube, and first
Position is the position between the first end and the first isolating valve of the first cooling tube, and the second position is that first heat exchanger and first are cold
But the position between the second end of pipe, in the second cooling tube successively along the direction of the first end from the second cooling tube to second end
It is provided with the second isolating valve, the second water pump and second heat exchanger.It is taken in this way, the second cooling tube can be shared with the first cooling tube
The second end of the mouth of a river and the first cooling tube being set in Spent Fuel Pool, to simplify Spent Fuel Pool cooling system
Structure improves system reliability, while reducing use cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Spent Fuel Pool cooling system provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of Spent Fuel Pool cooling system, it is applied in nuclear island, it is weary
Fuel pit cooling system includes:
At least two first cooling tubes 1, the first end of first cooling tube 1 are intake 101, the intake 101
It is set on the side wall of Spent Fuel Pool 2, the second end of first cooling tube 1 is set in the Spent Fuel Pool 2, described
The first isolating valve is disposed with along the direction of first end to second end from first cooling tube 1 in first cooling tube 1
102, the first water pump 103 and first heat exchanger 104；
First of the second cooling tube of at least one 3, the first end of second cooling tube 3 and first cooling tube 1
Connection is set, the second end of second cooling tube 3 is connected to the second position of first cooling tube 1, and the first position is
Position between the first end of first cooling tube 1 and first isolating valve 102, the second position are first heat
Position between exchanger 104 and the second end of first cooling tube 1, along from described second in second cooling tube 3
The direction of the first end of cooling tube 3 to second end is disposed with the second isolating valve 301, the second water pump 302 and the second heat exchange
Device 303.
In the present embodiment, the part first from intake 101 to the junction of the first end with the second cooling tube 3 is cooling
Pipe can be referred to as intake pipe, then the first cooling tube 1 and the second cooling tube 3 can share above-mentioned intake pipe, intake 101 and
It is placed in the second end of the first cooling tube 1 in Spent Fuel Pool 2, to reduce the equipment in entire Spent Fuel Pool system
The maintenance cost of quantity and plant maintenance.
In addition, if only with an intake, when above-mentioned intake breaks down, then entire Spent Fuel Pool cooling system
System cannot extract hot water from Spent Fuel Pool 2, to cannot achieve the refrigerating function to Spent Fuel Pool 2.
Compared with only with the embodiment with an intake, by every one first cooling tube 1 in this present embodiment
It can be fetched water from Spent Fuel Pool 2 by intake 101, and above-mentioned water is made successively to pass through in the first cooling tube 1
One isolating valve 102, the first water pump 103 and first heat exchanger 104, to complete to the heat exchange of above-mentioned water and then will be complete
It is back in Spent Fuel Pool 2 at the water after heat exchange by the second end of the first cooling tube 1, so that Spent Fuel Pool
The temperature of water in 2 may remain in normal range (NR) and (be generally not more than 50 degrees Celsius).It should be noted that due to this implementation
Spent Fuel Pool cooling system in example includes at least two first cooling tubes 1, in this way, when event occurs in first cooling tube 1
When barrier, another first cooling tube 1 still be can work normally, to improve the stability of Spent Fuel Pool cooling system.
Wherein, the first isolating valve 102 and the second isolating valve 301 can be motor-operated isolation valve, in this way, to control respectively
First isolating valve 102 and the second isolating valve 301 it is more convenient when being turned on or off.
Wherein, it can connect component cooling water system 1041 in first heat exchanger 104, and component cooling water system
1041 may include having water intaking pipeline and return piping, wherein water intaking pipeline can from cooling water system by cold water extract to
In first heat exchanger 104, to carry out heat exchange with the hot water extracted from Spent Fuel Pool 2 by the first cooling tube 1, and
Return piping is then used to for the cold water carried out after heat exchange being delivered in cooling water system.And pass through in the first cooling tube 1
Hot water after heat exchange is cooling, then can continue on the first cooling tube 1 and return in Spent Fuel Pool 2.
It should be noted that safety level cooling water of the first heat exchanger 104 using component cooling water system 1041
It arranges (safety level cooling water can also be referred to as), is the secured user of component cooling water system 1041.Second heat exchanger 303 connects
The component cooling water system connect is non-security grade cooling water (can also be referred to as non-security grade cooling water), is component cooling water system
The common user of system.And second heat exchanger 303 may also connect to the component cooling water system in first heat exchanger 104
On 1041, when an accident occurs, non-security grade cooling water is unavailable, and the second cooling tube can be using in first heat exchanger 104
Component cooling water system 1041 carries out the hot water in cooling Spent Fuel Pool.It is cooling to further simplify Spent Fuel Pool
The structure of system improves system reliability, and further reduces use cost.
In addition, the first isolating valve 102, the first water pump 103 and first heat exchanger 104 in every one first cooling tube 1 are equal
It can be electrically connected with an independent power supply line, the second isolating valve 301, the second water pump 302 in every one second cooling tube 3 and
Two heat exchangers 303 can also be electrically connected with an independent power supply line, in this way, when a certain power supply line breaks down,
Spent Fuel Pool cooling system also can be achieved on the refrigerating function to Spent Fuel Pool 2, improve Spent Fuel Pool cooling system
The stability of system.
Referring to Fig. 1, Spent Fuel Pool cooling system includes the first cooling tube of A and the first cooling tube of C and B second cooling
Pipe, under different operating conditions, the first cooling tube of A, the first cooling tube of C and the second cooling tube of B can be respectively combined use.Such as:
When nuclear power station is in Power operation to when repairing cold shutdown, the first cooling tube of A or the second cooling tube of B can work, and C first is cold
But it manages and does not work, to take away the thermic load in Spent Fuel Pool 2；When nuclear power station is in generating set refuelling outage operating condition, A
One cooling tube and the second cooling tube of B work, and the first cooling tube of C does not work, to take away the thermic load in Spent Fuel Pool 2；When
When first cooling tube (such as the first cooling tube of A) for nuclear power station is in maintenance operating condition, then the second cooling tube of B and C first are cooling
Pipe may be at working condition, to take away the thermic load in Spent Fuel Pool 2.
In addition, when such as A the first cooling tube failure, then the first cooling tube of C can be normal when nuclear power station is in accident conditions
Operation.It should be noted that when only first cooling tube in the first cooling tube of the first cooling tube of A and C being capable of normal use
When, the temperature of Spent Fuel Pool 2 is generally not more than 80 degrees Celsius, when the first cooling tube of A and the first cooling tube of C can normal uses
When, the temperature of Spent Fuel Pool 2 is generally not more than 50 degrees Celsius.
It should be noted that staff can detect the temperature of the water in Spent Fuel Pool 2 by sensor.
Optionally, referring to Fig. 1, set gradually that there are two the first isolating valves 102, described first in first cooling tube 1
Water pump 103 and the first heat exchanger 104, on first cooling tube 1, and be located at described two first isolating valves 102 it
Between position be provided with the first communication port, the first end of second cooling tube 3 is connected to first communication port；
On first cooling tube 1, and it is located at the second end of the first heat exchanger 104 and first cooling tube 1
Between position be provided with the second communication port, the second end of second cooling tube 3 is connected to second communication port.
Wherein, the first end of the second cooling tube 3 can connect a plurality of branching pipe, and each branching pipe can be with one
First communication port of the first cooling tube 1 is connected to.Similarly, the second end of the second cooling tube 3 also can connect a plurality of branching pipe, often
One branching pipe is connected to the second communication port of first cooling tube 1.
In the utility model embodiment, due to being arranged in the first cooling tube, there are two the first isolating valves, and the second cooling tube
First end be connected to the first communication port being set between two the first isolating valves, in this way, when the second cooling tube first end
When connection with first communication port is broken down, by closing the first isolating valve, so as to avoid from Spent Fuel Pool
The hot water of middle extraction is revealed, and then guarantees the normal work of other first cooling tubes.Improve entire spentnuclear fuel cooling system
Stability.
Optionally, the first end of second cooling tube 3 and first communication port are connected by two the second isolating valves 301
Logical, the second end of second cooling tube 3 is connected to second communication port by second isolating valve 301.
Wherein, second isolating valve 301 can be set on the second cooling tube 3, and the first end of the second cooling tube 3 connects
Second isolating valve 301 is also provided on each branching pipe connect.
It is of course also possible to for be provided on each branching pipe for connecting of first end of the second cooling tube 3 one or two the
Two isolating valves 301, concrete mode is it is not limited here.
In the utility model embodiment, when a certain branching pipe, or a certain first cooling tube being connected to a certain branching pipe
On when there is cut, the second isolating valve on the branching pipe can be closed, to guarantee that the second cooling tube can be through other branch water
Pipe extracts hot water from the first cooling tube, improves the stability of Spent Fuel Pool cooling system.
Optionally, referring to Fig. 1, in first cooling tube 1, and it is located at the first heat exchanger 104 and described second
Position between communication port is provided with first flowmeter 105；
In second cooling tube 3, and it is located at the second end of the second heat exchanger 303 and second cooling tube 3
Between position be provided with second flowmeter 304.
In the utility model embodiment, it is provided with first flowmeter in the first cooling tube, is provided in the second cooling tube
Two flowmeters, in this way, the flow by the hot water in the first cooling tube and the second cooling tube can accurately be counted, so that work
Personnel facilitate subsequent adjustment by the flow of the first cooling tube and the hot water in the second cooling tube, avoid a certain first cooling tube and
The generation of the even phenomenon of the mass flow discrepancy of the hot water passed through in second cooling tube.
Optionally, referring to Fig. 1, in first cooling tube 1, and it is located at the first flowmeter 105 and connects with described second
Position between port is provided with first flow regulating device 106；
In second cooling tube 3, and be located at the second flowmeter 304 and second cooling tube 3 second end it
Between position be provided with second flow regulating device 305.
Wherein, first flow regulating device 106 and second flow regulating device 305 can be flow control valve, specifically
Type is it is not limited here.
In the utility model embodiment, it is provided with first flow regulating device in the first cooling tube, is set in the second cooling tube
It is equipped with second flow regulating device, so that staff is adjusted through the first cooling tube and the hot water in the second cooling tube
Flow is more convenient.
Optionally, the first isolating valve 102 in first cooling tube 1, the first water pump 103 and first flowmeter 105 are equal
It is electrically connected respectively with a safe power supply of nuclear island column；And/or
The second isolating valve 301, the second water pump 302 and second flowmeter 304 in second cooling tube respectively with institute
State a non-security power supply column electrical connection of nuclear island.
Wherein, the power supply grade of the first cooling tube 1 (may also be referred to as safety level power supply by the safe level power supply of nuclear island
Column) power supply, and the power supply of the second cooling tube 3 can be by the safety level power supply power supply of any first cooling tube 1, certainly, second is cooling
The power supply of pipe 3 can also be powered by the non-security grade of nuclear island, and column are independent to power.In addition, the first isolating valve in the first cooling tube 1
102, the electrical equipments such as the first water pump 103 and first flowmeter 105 can also be electrically connected with backup power source respectively, such as: it is spare
Power supply can be diesel-driven generator or mobile power source.
It should be noted that the safety classification method of structures, system and component in nuclear island is International Atomic Energy Agency
(IAEA) " classification of nuclear power plant's items " announced in 2014, i.e., " Safety Classification of Structures,
Systems and Components in Nuclear Power Plants " method specified in (NO.SSG-30-2014).
Safety level power supply column refer to rule in satisfaction " design of pressurized-water reactor nuclear power plant nuclear island electrical equipment and construction rule " (RCC-E-2005)
The power supply system of fixed safety level power reguirements, non-security grade power supply arrange non-security grade specified in the above-mentioned file then referred to and supply
The power supply system that electricity requires.Refer to satisfaction " design of presurized water reactor nuclear islands equipment and rule " (RCC- about safety level cooling water
M-2007) the cooling water system of security-level requirements, non-security grade cooling water then refer to satisfaction " presurized water reactor nuclear islands equipment design
And rule " the desired cooling water system of (RCC-M-2007) non-security grade.
It should be noted that safety level power supply column can be with normal power supply, Er Feian when nuclear island is in design basis accident
Full grade power supply column are then unable to normal power supply, and similarly, when nuclear island is in design basis accident, safety level cooling water can also be normal
Cooling water supply, rather than safety level cooling water is then unable to regular supply cooling water.
In the utility model embodiment, the first isolating valve, the first water pump and first flowmeter in the first cooling tube are divided equally
It is not electrically connected with a safe power supply of nuclear island column, since safe power supply column can be in normal power supply under accident conditions, in this way, in thing
Therefore under operating condition, the first isolating valve, the first water pump and first flowmeter in the first cooling tube still be can work normally, to mention
The high reliability of entire Spent Fuel Pool cooling system.
Optionally, the Spent Fuel Pool cooling system further includes backup power source, first in first cooling tube 1 every
It is electrically connected respectively with the backup power source from valve 102, the first water pump 103 and first flowmeter 105.
Wherein, backup power source may include at least one in generator and mobile power source.And generator can be diesel oil
Generator, in addition, need to be provided with an electrical connection interface in the first cooling tube 1 when backup power source is mobile power source, for
Mobile power source electrical connection, thus under accident conditions, it can be by mobile power source to the first isolating valve in the first cooling tube 1
102, the first water pump 103 and first flowmeter 105 are powered, so that further enhance entire Spent Fuel Pool cooling system can
By property.
In the utility model embodiment, Spent Fuel Pool cooling system further includes backup power source, and in the first cooling tube
First isolating valve, the first water pump and first flowmeter are electrically connected with backup power source respectively, entire so as to further enhance
The reliability of Spent Fuel Pool cooling system.
Optionally, switching power supply column switching device, the power supply column switching device are additionally provided in second cooling tube 3
For by the second isolating valve 301, the second water pump 302 and the second flowmeter 304 in second cooling tube 3 by non-security power supply
Column power switching is arranged to safe power supply and is powered.
Wherein, one end of switching power supply column switching device can be electrically connected with non-security power supply column and safe power supply column respectively
Connect, and switch power supply column switching device the other end can respectively with the second isolating valve 301, the second water in the second cooling tube 3
Pump the electrical connection of the electrical equipments such as 302 and second flowmeter 304.
In the utility model embodiment, be additionally provided in the second cooling tube switching power supply column switching device, so as into
The power supply flexibility of the second isolating valve, the second water pump and second flowmeter in the second cooling tube of enhancing of one step.
Optionally, referring to Fig. 1, in first cooling tube 1, and in each side position of first water pump 103, and
Each side position of the first heat exchanger 104 is provided with the first control valve 107；
In second cooling tube 3, and in each side position of second water pump 302 and second heat exchange
The each side position in the 303 of device is provided with the second control valve 306.
It should be noted that one second can be passed through between the second end of the second cooling tube 3 and every one first cooling tube 1
Control valve 306 is connected to.
In the utility model embodiment, when the first control valve of the first water pump or first heat exchanger two sides is in pass
When closing, then can prevent hot water flow through first water pump perhaps first heat exchanger thus convenient to first water pump or should
First heat exchanger is overhauled or is replaced.Similarly, the second water pump or the second control valve of second heat exchanger two sides close
When closing, staff can also overhaul or replace to second water pump or the second heat exchanger.
Optionally, referring to Fig. 1, the second end of first cooling tube 1 is connected with siphon destructive device 4 and check-valves.
Wherein, siphon destructive device 4 and check-valves setting sequence it is not limited here, such as: can be siphon destructive device 4
Close to the second end port of the first cooling tube 1, or check-valves is close to the second end port of the first cooling tube 1.
In the utility model embodiment, the second end of the first cooling tube is connected with siphon destructive device and check-valves, so as to
To prevent the hot water in Spent Fuel Pool from flowing back into the first cooling tube through second end.
Optionally, referring to Fig. 1, the Spent Fuel Pool cooling system further includes branch pipe 5, the branch pipe 5 respectively with it is described
First cooling tube 1 is connected to second cooling tube 3.
It should be noted that multiple third control valves also can be set on branch pipe 5, wherein third control valve and the first control
Valve 107 processed and the second control valve 306 it is structurally and functionally all the same.
In the utility model embodiment, branch pipe can be connected to every one first cooling tube and every one second cooling tube, in this way, can
Water pump (such as the first water pump) to be applied in combination in a certain first cooling tube and the heat exchanger in another first cooling tube
(such as first heat exchanger), so that the stability of Spent Fuel Pool cooling system is more preferable.
Optionally, setting of the intake 101 of any two first cooling tubes 1 on the side wall of the Spent Fuel Pool 2
Height is different.
In the utility model embodiment, intake the setting on the side wall of Spent Fuel Pool of any two first cooling tubes
It is different to set height, in this way, the intake for avoiding the first cooling tube is excessively concentrated.The first cooling tube can be made from spentnuclear fuel water
It fetches water in pond more convenient.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be wanted with right
Subject to the protection scope asked.
Claims (12)
1. a kind of Spent Fuel Pool cooling system is applied in nuclear island characterized by comprising
The first end of at least two first cooling tubes, first cooling tube is intake, and the intake is set to spentnuclear fuel
On the side wall in pond, the second end of first cooling tube is set in the Spent Fuel Pool, edge in first cooling tube
From the direction of first end to the second end of first cooling tube be disposed with the first isolating valve, the first water pump and first heat
Exchanger；
The second cooling tube of at least one, the first end of second cooling tube are connected to the first position of first cooling tube,
The second end of second cooling tube is connected to the second position of first cooling tube, and the first position is described first cold
But the position between the first end of pipe and first isolating valve, the second position are the first heat exchanger and described the
Position between the second end of one cooling tube, along from the first end of second cooling tube to second in second cooling tube
The direction at end is disposed with the second isolating valve, the second water pump and second heat exchanger.
2. Spent Fuel Pool cooling system according to claim 1, which is characterized in that successively set in first cooling tube
It sets there are two the first isolating valve, first water pump and the first heat exchanger, on first cooling tube, and is located at described
Position between two the first isolating valves is provided with the first communication port, and the first end of second cooling tube is connected to described first
Mouth connection；
On first cooling tube, and the position between the first heat exchanger and the second end of first cooling tube
It is provided with the second communication port, the second end of second cooling tube is connected to second communication port.
3. Spent Fuel Pool cooling system according to claim 2, which is characterized in that the first end of second cooling tube
It is connected to first communication port by two the second isolating valves, the second end of second cooling tube and second communication port
It is connected to by second isolating valve.
4. Spent Fuel Pool cooling system according to claim 2, which is characterized in that in first cooling tube, and position
Position between the first heat exchanger and second communication port is provided with first flowmeter；
In second cooling tube, and the position between the second heat exchanger and the second end of second cooling tube
It is provided with second flowmeter.
5. Spent Fuel Pool cooling system according to claim 4, which is characterized in that in first cooling tube, and position
Position between the first flowmeter and second communication port is provided with first flow regulating device；
In second cooling tube, and the position between the second flowmeter and the second end of second cooling tube is set
It is equipped with second flow regulating device.
6. Spent Fuel Pool cooling system according to claim 4, which is characterized in that first in first cooling tube
Isolating valve, the first water pump and first flowmeter are electrically connected with the safety level power supply column in the nuclear island respectively；And/or
The second isolating valve, the second water pump and second flowmeter in second cooling tube is non-with one in the nuclear island respectively
Safety level power supply column electrical connection.
7. Spent Fuel Pool cooling system according to claim 6, which is characterized in that the Spent Fuel Pool cooling system
Further include backup power source, the first isolating valve, the first water pump and first flowmeter in first cooling tube respectively with it is described
Backup power source electrical connection.
8. Spent Fuel Pool cooling system according to claim 6, which is characterized in that also set up in second cooling tube
Have a switching power supply column switching device, the power supply column switching device be used for by second cooling tube the second isolating valve, the
Two water pumps and second flowmeter, which are powered by the non-security grade power supply column power switching to the safety level, arranges power supply.
9. Spent Fuel Pool cooling system according to claim 1, which is characterized in that connected in each first heat exchanger
There is the safety level cooling water in the nuclear island；The non-security grade that the second heat exchanger is connected in the nuclear island is cooling
Water.
10. Spent Fuel Pool cooling system according to claim 1, which is characterized in that in first cooling tube, and
Each side position of first water pump and each side position of the first heat exchanger are provided with the first control valve；
In second cooling tube, and in each of each side position of second water pump and the second heat exchanger
Side position is provided with the second control valve.
11. Spent Fuel Pool cooling system according to claim 1, which is characterized in that the Spent Fuel Pool cooling system
System further includes branch pipe, and the branch pipe is connected to first cooling tube and second cooling tube respectively.
12. -11 described in any item Spent Fuel Pool cooling systems according to claim 1, which is characterized in that any two first
Setting height of the intake of cooling tube on the side wall of the Spent Fuel Pool is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920074691.8U CN209591543U (en) | 2019-01-16 | 2019-01-16 | A kind of Spent Fuel Pool cooling system |
Applications Claiming Priority (1)
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