CN110335688A - A kind of tandem heat exchanger Spent Radioactive air cooling system - Google Patents
A kind of tandem heat exchanger Spent Radioactive air cooling system Download PDFInfo
- Publication number
- CN110335688A CN110335688A CN201910568403.9A CN201910568403A CN110335688A CN 110335688 A CN110335688 A CN 110335688A CN 201910568403 A CN201910568403 A CN 201910568403A CN 110335688 A CN110335688 A CN 110335688A
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- water
- air
- heat exchanger
- valve
- cooling
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/24—Promoting flow of the coolant
- G21C15/243—Promoting flow of the coolant for liquids
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a kind of tandem heat exchanger Spent Radioactive air cooling systems of the cooling equipment technical field of exhaust gas, including two groups of air-water heat exchangers, the air inlet of left side air-water heat exchanger is connected with gas inlet pipeline, the gas outlet of left side air-water heat exchanger is connected to the air inlet of right side air-water heat exchanger, the water inlet of two groups of air-water heat exchangers is communicated with cooling water inlet pipeline, and the water outlet of two groups of air-water heat exchangers is communicated with cooling water outlet channel；The present invention passes through the first water pump respectively by the inner cavity of water tank and the second water pump connects cooling water outlet channel and cooling water inlet pipeline, realize recycling for cooling water, heat is converted twice in succession, it realizes efficiently cooling, carries out radiological measuring after reaching temperature, using primary heat exchange cooling if detection radioactivity is not up to standard, it is discharged until radioactivity is up to standard, so that exhaust gas temperature meets system process design requirement, good cooling results improve the high reliablity of system.
Description
Technical field
The present invention relates to the cooling equipment technical fields of exhaust gas, and in particular to a kind of tandem heat exchanger Spent Radioactive air cooling
System.
Background technique
The power resources of nuclear power plant's power generation are that the disintegration energy that nuclear fission generates can produce during fission releases energy
Raw a large amount of fission product and activation products.Although in the safe design of reactor, there is fuel can and primary Ioops boundary and peace
The depth defense shielding measure of full shell, but a small amount of breakage due to fuel can in special circumstances, the normal leakage of primary Ioops
And the small amount of leakage for the heap safety devices and core auxiliary equipment being connected with primary Ioops, maintenance activity of control zone etc. can all generate
Radioactive waste.Fuel can during normal operation due in thermal stress, corrode or corrosiveness under occur it is damaged or due to
There is breakage in the defects of process, and being diffused into the radioactive fission product between pellet will be entered by damaged involucrum
Reactor coolant.Including some inert gases (such as Xe, Kr etc.), halogen gas and aerosol etc., these constitute radioactivity
The basic source of gas.
Radioactive emission refers to containing active gas and aerosol, and radioactive concentration is more than the careful pipe agencies dictate of country
Emission limit gaseous waste products.Radgas accumulates into after everybody body, a part be can be transferred in related organ.
In the intracorporal burden of people nucleic related with the solubility of dust in radgas, different, the organ and ability of accumulation are all
It is different.As patent CN201520972307.8 discloses a kind of tandem heat exchanger Spent Radioactive air cooling system.This is practical new
Type includes upstream air-water heat exchanger, downstream air-water heat exchanger and pipe control equipment: upstream air-water heat exchanger and downstream air water change
Hot device is connected in series；Radioactive emission enters upstream air-water heat exchanger by exhaust gas inlet, and pipe control equipment controls Spent Radioactive
Gas be directly discharged by waste gas outlet after the processing of upstream air-water heat exchanger or radioactive emission successively through upstream air-water heat exchanger and
Downstream air-water heat exchanger is discharged by waste gas outlet again after handling respectively.System solves the problem existing Spent Radioactive air cooling systems to change
The thermal efficiency is lower, is difficult to the technical issues of making technique radioactive emission treatment effect reach design objective value.But the device is only
Solves the problems, such as heat exchange efficiency.Based on this, the present invention devises a kind of tandem heat exchanger Spent Radioactive air cooling system, with
It solves the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of tandem heat exchanger Spent Radioactive air cooling systems, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of tandem heat exchanger Spent Radioactive air cooling
System, including two groups of air-water heat exchangers, the air inlet of the left side air-water heat exchanger are connected with gas inlet pipeline, described in left side
The gas outlet of air-water heat exchanger is connected to the air inlet of the right side air-water heat exchanger, the water inlet of air-water heat exchanger described in two groups
It is communicated with cooling water inlet pipeline, the water outlet of air-water heat exchanger described in two groups is communicated with cooling water outlet channel, single group
It is communicated with water tank between the water inlet of cooling water inlet pipeline and the water outlet in cooling water outlet channel on the air-water heat exchanger,
The center of top of the water tank is connected with condenser, is connected between the import of the condensate outlet and water tank of the condenser unidirectional
Valve, the gas outlet of the right side air-water heat exchanger are communicated with exhaust gas outlet pipe road, are connected on the left of the exhaust gas outlet pipe road
Temperature detector, the right side of the temperature detector are equipped with the first valve, and the right side of first valve is equipped with gas cooler,
The outlet of the gas cooler is equipped with radiation detection devices, is communicated with branch between the temperature detector and the first valve
Pipeline, the lateral are equipped with the second valve, the exit of the lateral and the inlet of radiation detection devices
Connection, the right side of the radiation detection devices are equipped with third valve, and the exit of the radiation detection devices is equipped with reflux
The exit of pipeline, the reflux line is connected to the air inlet of the right side air-water heat exchanger, and the reflux line is equipped with
4th valve.
Preferably, it is overlapped with the first water pump and the second water pump at left and right sides of the intracavity bottom of the water tank respectively, described the
The water inlet of one water pump and the water outlet in cooling water outlet channel are socketed, and the water outlet of second water pump and cooling water inlet are managed
The water inlet in road is socketed, and the water outlet of first water pump and the water inlet of the second water pump are plugged with water pipe, and water pipe is located at
The inside of water tank.
Preferably, the temperature detector, the first valve, gas cooler, radiation detection devices and third valve are equal
On exhaust gas outlet pipe road.
Preferably, first valve and the second valve are thermostat valve.
Preferably, the third valve and the 4th valve are hand-operated valve.
Preferably, first water pump and the second water pump and condenser pass through control button parallel connection alternating current respectively.
Compared with prior art, the beneficial effects of the present invention are: the present invention is discharged by radioactive emission from gas inlet
Pipeline enters in first group of air-water heat exchanger, and the inner cavity of water tank passes through the first water pump respectively and the second water pump connection cooling water goes out
Mouth channel and cooling water inlet pipeline, realize recycling for cooling water, the heat in exhaust gas are exchanged in cooling water, two groups
Air-water heat exchanger series connection, heat is converted twice in succession, realizes efficiently cooling, detects temperature by temperature detector, if cooling
Temperature is not up to standard, then carries out heat exchange cooling again, reaches standard and then directly carries out radioactivity by radiation detection devices
Detection is discharged into second group of air-water heat exchanger if detection radioactivity is not up to standard from reflux line cold using once exchanging heat
But, cooling temperature and radioactivity are detected again, are discharged until radioactivity is up to standard, so that exhaust gas temperature meets system process and sets
Meter requires, and good cooling results improve the high reliablity of system.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is cisten mechanism schematic diagram of the present invention.
Fig. 3 is air-water heat exchanger of the present invention and water tank attachment structure schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
Air-water heat exchanger 1, gas inlet pipeline 2, cooling water inlet pipeline 3, cooling water outlet channel 4, water tank 5, condensation
Device 6, check valve 7, exhaust gas outlet pipe road 8, temperature detector 9, the first valve 10, gas cooler 11, radiation detection devices
12, lateral 13, the second valve 14, third valve 15, reflux line 16, the 4th valve 17, the first water pump 51, the second water pump
52, water pipe 53.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of tandem heat exchanger radioactive emission cooling system
System, including two groups of air-water heat exchangers 1, the air inlet of left side air-water heat exchanger 1 are connected with gas inlet pipeline 2, and left side air water changes
The gas outlet of hot device 1 is connected to the air inlet of right side air-water heat exchanger 1, and the water inlet of two groups of air-water heat exchangers 1 is communicated with cold
But water inlet pipeline 3, the water outlet of two groups of air-water heat exchangers 1 are communicated with cooling water outlet channel 4, single group air-water heat exchanger 1
Water tank 5, the top of water tank 5 are communicated between the water inlet of upper cooling water inlet pipeline 3 and the water outlet in cooling water outlet channel 4
Center is connected with condenser 6, is connected with check valve 7 between the import of the condensate outlet and water tank 5 of condenser 6, right side air water changes
The gas outlet of hot device 1 is communicated with exhaust gas outlet pipe road 8, and the left side in exhaust gas outlet pipe road 8 is connected with temperature detector 9, temperature inspection
The right side for surveying device 9 is equipped with the first valve 10, and the right side of the first valve 10 is equipped with gas cooler 11, the outlet of gas cooler 11
Equipped with radiation detection devices 12, it is communicated with lateral 13 between temperature detector 9 and the first valve 10, on lateral 13
Equipped with the second valve 14, the exit of lateral 13 is connected to the inlet of radiation detection devices 12, radiological measuring dress
The right side for setting 12 is equipped with third valve 15, and the exit of radiation detection devices 12 is equipped with reflux line 16, reflux line 16
Exit is connected to the air inlet of right side air-water heat exchanger 1, and reflux line 16 is equipped with the 4th valve 17.
Wherein, it is overlapped with the first water pump 51 and the second water pump 52, the first water pump respectively at left and right sides of the intracavity bottom of water tank 5
51 water inlet and the water outlet in cooling water outlet channel 4 are socketed, water outlet and the cooling water inlet pipeline 3 of the second water pump 52
The water inlet of water inlet socket, the water outlet of the first water pump 51 and the second water pump 52 is plugged with water pipe 53, and water pipe 53 is located at
The inside of water tank 5.
Temperature detector 9, the first valve 10, gas cooler 11, radiation detection devices 12 and the equal position of third valve 15
In on exhaust gas outlet pipe road 8.
First valve 10 and the second valve 14 are thermostat valve, the first valve 10 and the second valve 14 by controller with
Temperature detector 9 is electrically connected, and is opened according to the different temperatures threshold value control being arranged in controller, the control circuit of controller is logical
Crossing those skilled in the art's simple programming can be realized.
Third valve 15 and the 4th valve 17 are hand-operated valve.
First water pump 51 and the second water pump 52 and condenser 6 are respectively by control button parallel connection alternating current, due to control button
Matched equipment is commonly used equipment, belongs to existing mature technology, details are not described herein its electrical connection and specific electricity
Line structure.
One concrete application of the present embodiment are as follows: radioactive emission discharge enters first group of gas from gas inlet pipeline 2
In water- to-water heat exchanger 1, the intake-outlet of air-water heat exchanger 1 passes through cooling water inlet pipeline 3 respectively and cooling water outlet channel 4 connects
There is water tank 5, water tank 5 freezes to liquid in case by condenser 6, and the inner cavity of water tank 5 passes through the first water pump 51 and respectively
Two water pumps 52 connect cooling water outlet channel 4 and cooling water inlet pipeline 3, realize recycling for cooling water, will be in exhaust gas
Heat exchanges in cooling water, and two groups of air-water heat exchangers 1 are connected, and the exhaust gas being discharged after heat conversion twice in succession is examined by temperature
It surveys device 9 and detects cooling temperature, if cooling temperature is not up to standard, then closes the second valve 14 and open the first valve 10, so that
Exhaust gas carries out radiological measuring after gas cooler 11 is cooling, reaches standard and then closes the first valve 10 the second valve of opening
14 make the exhaust gas outlet pipe road 8 for being directly discharged into connection radiation detection devices 12 from lateral 13 through overcooled exhaust gas
In, it will be discharged through overcooled exhaust gas by turning off the 4th valve 17 of opening of third valve 15 after radioactivity detection up to standard, if
It detects radioactivity the 4th valve 17 not up to standard of then closing and opens third valve 15, so that exhaust gas is discharged into the from reflux line 16
Using primary heat exchange cooling in two groups of air-water heat exchangers 1, cooling temperature and radioactivity are detected again, is given until radioactivity is up to standard
With discharge, so that exhaust gas temperature meets system process design requirement, good cooling results improve the high reliablity of system.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of tandem heat exchanger Spent Radioactive air cooling system, including two groups of air-water heat exchangers (1), it is characterised in that: left
The air inlet of air-water heat exchanger described in side (1) is connected with gas inlet pipeline (2), the outlet of the left side air-water heat exchanger (1)
Mouth is connected to the air inlet of the right side air-water heat exchanger (1), and the water inlet of air-water heat exchanger described in two groups (1) is communicated with cold
But water inlet pipeline (3), the water outlet of air-water heat exchanger described in two groups (1) are communicated with cooling water outlet channel (4), single group institute
It states and is connected between the water inlet of cooling water inlet pipeline (3) and the water outlet of cooling water outlet channel (4) on air-water heat exchanger (1)
Have water tank (5), the center of top of the water tank (5) is connected with condenser (6), the condensate outlet and water tank of the condenser (6)
(5) it is connected between import check valve (7), the gas outlet of the right side air-water heat exchanger (1) is communicated with exhaust gas outlet pipe road
(8), it is connected with temperature detector (9) on the left of the exhaust gas outlet pipe road (8), the right side of the temperature detector (9) is equipped with
The right side of first valve (10), first valve (10) is equipped with gas cooler (11), and the gas cooler (11) goes out
Mouth is equipped with radiation detection devices (12), is communicated with lateral between the temperature detector (9) and the first valve (10)
(13), the lateral (13) is equipped with the second valve (14), the exit of the lateral (13) and radiological measuring
The inlet of device (12) is connected to, and the right side of the radiation detection devices (12) is equipped with third valve (15), the radioactivity
The exit of detection device (12) is equipped with reflux line (16), and exit and the right side air water of the reflux line (16) change
The air inlet of hot device (1) is connected to, and the reflux line (16) is equipped with the 4th valve (17).
2. a kind of tandem heat exchanger Spent Radioactive air cooling system according to claim 1, it is characterised in that: the water
It is overlapped with the first water pump (51) and the second water pump (52), first water pump (51) respectively at left and right sides of the intracavity bottom of case (5)
Water inlet and the water outlet of cooling water outlet channel (4) be socketed, the water outlet of second water pump (52) and cooling water inlet
The water inlet of pipeline (3) is socketed, and the water outlet of first water pump (51) and the water inlet of the second water pump (52) are plugged with water
It manages (53), and water pipe (53) is located at the inside of water tank (5).
3. a kind of tandem heat exchanger Spent Radioactive air cooling system according to claim 1, it is characterised in that: the temperature
Spend detector (9), the first valve (10), gas cooler (11), radiation detection devices (12) and third valve (15) equal position
In on exhaust gas outlet pipe road (8).
4. a kind of tandem heat exchanger Spent Radioactive air cooling system according to claim 1, it is characterised in that: described
One valve (10) and the second valve (14) are thermostat valve.
5. a kind of tandem heat exchanger Spent Radioactive air cooling system according to claim 1, it is characterised in that: described
Three valves (15) and the 4th valve (17) are hand-operated valve.
6. a kind of tandem heat exchanger Spent Radioactive air cooling system according to claim 2, it is characterised in that: described
One water pump (51) and the second water pump (52) and condenser (6) pass through control button parallel connection alternating current respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568403.9A CN110335688A (en) | 2019-06-27 | 2019-06-27 | A kind of tandem heat exchanger Spent Radioactive air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568403.9A CN110335688A (en) | 2019-06-27 | 2019-06-27 | A kind of tandem heat exchanger Spent Radioactive air cooling system |
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| Publication Number | Publication Date |
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| CN110335688A true CN110335688A (en) | 2019-10-15 |
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|---|---|---|---|
| CN201910568403.9A Pending CN110335688A (en) | 2019-06-27 | 2019-06-27 | A kind of tandem heat exchanger Spent Radioactive air cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057819A (en) * | 2019-12-30 | 2020-04-24 | 湖南金炉科技股份有限公司 | Circulating cooling device, heat treatment kiln and cooling method thereof |
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Application publication date: 20191015 |