CN109405152A - A kind of nuclear power station exhaust system - Google Patents
A kind of nuclear power station exhaust system Download PDFInfo
- Publication number
- CN109405152A CN109405152A CN201811086461.XA CN201811086461A CN109405152A CN 109405152 A CN109405152 A CN 109405152A CN 201811086461 A CN201811086461 A CN 201811086461A CN 109405152 A CN109405152 A CN 109405152A
- Authority
- CN
- China
- Prior art keywords
- filtering device
- air duct
- inceptive filtering
- filter
- nuclear power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Radiation (AREA)
- Ventilation (AREA)
Abstract
The present invention provides a kind of nuclear power station exhaust system comprising: inceptive filtering device, radioactive material filtration device and exhaust blower；It is connected respectively by air duct between inceptive filtering device and radioactive material filtration device and exhaust blower, inceptive filtering device includes primary filter and/or medium effeciency filter, it is used to be filtered to the gas that nuclear power station is discharged, and filtered gas is sent to radioactive material filtration device or exhaust blower；It is connected between the output end of radioactive material filtration device and the input terminal of exhaust blower by air duct；Air duct between inceptive filtering device and radioactive material filtration device is equipped with the first isolating valve, and the air duct between inceptive filtering device and exhaust blower is equipped with the second isolating valve；The output end of inceptive filtering device is equipped with the Radioactive Materials Inspection System for detecting radioactive substance concentration.The present invention had not only been able to achieve the function to specific radgas high-efficient purification, but also can save equipment and space, decreased construction cost.
Description
Technical field
The present invention relates to technical field of nuclear power more particularly to a kind of nuclear power station exhaust systems.
Background technique
The existing exhaust system structure in nuclear power station radioactivity control zone is arranged as shown in Figure 1, being divided into normal air draft column with iodine is removed
Wind column.The equipment of normal air draft column and the equipment of iodine air draft column are completely independent operation.When radioiodine concentration is less than in air draft
When given threshold, air draft arranges (including primary filter 4 ', exhaust blower 7 ') through normal air draft and handles heel row to external environment.Work as row
When radioiodine concentration is more than given threshold in wind, air draft is passed through except iodine air draft column (including primary filter 4 ', high efficiency particulate air filter
5 ', iodine filter 6 ', exhaust blower 7 ') heel row is to external environment.
Existing exhaust system structure has the drawback that a) equipment, pipeline, valve are more, increase construction cost.b)
Because equipment, pipeline, valve are more, area needed for leading to equipment arrangement is big, especially (generally single in some Small nuclear power plants
Machine capacity is in 300,000 kilowatts of nuclear power stations below) in.C) when switchover operation, two exhaust blowers are required to start or be stopped transport, control
System operation is not convenient enough.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of nuclear power station exhaust system, both it had been able to achieve to specific radioactivity
The function of gas high-efficient purification, and can save equipment and space, decrease construction cost, and but also nuclear power station air draft
It is more convenient to control.
A kind of nuclear power station exhaust system provided by the invention, comprising: inceptive filtering device, radioactive material filtration device with
And exhaust blower；
Pass through wind respectively between the inceptive filtering device and the radioactive material filtration device and the exhaust blower
Road connection, the gas that the inceptive filtering device is used to be discharged to nuclear power station is filtered, and filtered gas is sent to institute
State radioactive material filtration device or the exhaust blower；The output end and the exhaust blower of the radioactive material filtration device
Input terminal between pass through air duct connect；
Air duct between the inceptive filtering device and the radioactive material filtration device is equipped with the first isolating valve, and
Air duct between the inceptive filtering device and the exhaust blower is equipped with the second isolating valve；
The output end of the inceptive filtering device is equipped with the radioactive material quality detection for detecting radioactive substance concentration and fills
It sets；
The inceptive filtering device includes primary filter and/or medium effeciency filter；When the inceptive filtering device packet
Containing primary filter and when medium effeciency filter, the input terminal of the output end of the primary filter and the medium effeciency filter it
Between pass through air duct connect.
Preferably, the Radioactive Materials Inspection System is used to detect the concentration of radioiodine.
Preferably, the Radioactive Materials Inspection System is also used to judge putting in the inceptive filtering device output gas
The concentration of penetrating property iodine, when the concentration of the radioiodine in the inceptive filtering device output gas is greater than preset concentration threshold value
When, then it controls first isolating valve and opens, and control second isolating valve and close, when the inceptive filtering device exports gas
When the concentration of radioiodine in body is not more than preset concentration threshold value, then controls first isolating valve and close, and described in control
Second isolating valve is opened.
Preferably, the radioactive material filtration device includes high efficiency particulate air filter, electric heater and iodine filter；
It is connected between the input terminal of the electric heater and the output end of the inceptive filtering device by air duct, the electricity
It is connected between the output end of heater and the input terminal of the high efficiency particulate air filter by air duct, the output end of the high efficiency particulate air filter
It is connect between the input terminal of the iodine filter by air duct, the input of the output end and the exhaust blower of the iodine filter
It is connected between end by air duct.
Preferably, it is also set on the air duct between the input terminal of the electric heater and the output end of the inceptive filtering device
There is the first fire resisting damper, the air duct between the output end of the iodine filter and the input terminal of the exhaust blower is equipped with the second fire prevention
Valve.
Preferably, on the air duct between the input terminal of the electric heater and the output end of the inceptive filtering device,
First isolating valve is located at close to the inceptive filtering device side, and first fire resisting damper is located remotely from the inceptive filtering dress
Set side.
Preferably, the air duct in the nuclear power station exhaust system is the air duct that air hose is constituted, or is constituted for building enclosure
Air duct.
The invention has the following beneficial effects: nuclear power station exhaust system provided by the invention, relative to existing core
For the exhaust system of power station, reduce relevant equipment, such as reduce at least one primary filter and an exhaust blower,
Therefore area needed for the equipment arrangement of nuclear power station exhaust system can also be reduced saves space, and saves energy consumption, also reduces
Construction cost.In addition, the present invention, which only passes through isolating valve, can be achieved with normal air draft and the switching except iodine air draft, run cleverer
It is living.Therefore, the present invention had not only been able to achieve the function to specific radgas high-efficient purification, but also can save equipment and space.Meanwhile
By the first isolating valve of control and the second isolating valve, can select to do the gas that inceptive filtering device is discharged further again
Filtering, or be directly discharged by exhaust blower, so that the control of nuclear power station air draft is more convenient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is nuclear power station exhaust system structural schematic diagram in background technique.
Fig. 2 is nuclear power station exhaust system structural schematic diagram provided by the invention.
Specific embodiment
The present invention provides a kind of nuclear power station exhaust system, as shown in Fig. 2, the nuclear power station exhaust system includes: inceptive filtering
Device 1, radioactive material filtration device 2 and exhaust blower 3.
Inceptive filtering device 1 includes primary filter and/or medium effeciency filter；When initial filter device 1 includes just
When imitating filter and medium effeciency filter, connected between the output end of primary filter and the input terminal of medium effeciency filter by air duct
It connecing, in Fig. 2, inceptive filtering device 1 be can wrap containing primary filter 11 and medium effeciency filter 12, certainly, inceptive filtering device 1
It can also only include primary filter 11 or medium effeciency filter 12.
It is connected respectively by air duct between inceptive filtering device 1 and radioactive material filtration device 2 and exhaust blower 3, just
The gas that beginning filter device 1 is used to be discharged to nuclear power station is filtered, and filtered gas is sent to radioactive material filtration
Device 2 or exhaust blower 3；Connected between the output end of radioactive material filtration device 2 and the input terminal of exhaust blower 3 by air duct
It connects.
Air duct between inceptive filtering device 1 and radioactive material filtration device 2 is equipped with the first isolating valve 4, and initial
Air duct between filter device 1 and exhaust blower 3 is equipped with the second isolating valve 5.
The output end of inceptive filtering device 1 is equipped with the Radioactive Materials Inspection System for detecting radioactive substance concentration
(not shown).Radioactive Materials Inspection System is used to detect the concentration of radioiodine.
Radioactive Materials Inspection System can also be used in the concentration for judging the radioiodine in 1 output gas of inceptive filtering device
Size, when the concentration of the radioiodine in initial 1 output gas of filter device be greater than preset concentration threshold value when, then control first every
It is opened from valve 4, and controls the second isolating valve 5 and close, when the concentration of the radioiodine in initial 1 output gas of filter device is little
When preset concentration threshold value, then the closing of the first isolating valve 4 is controlled, and controls the second isolating valve 5 and open.
In nuclear power station exhaust system provided by the invention, first the gas (air draft shown in Fig. 2) by nuclear power station discharge is passed through
After crossing the filtering of inceptive filtering device 1, put in the gas using the Radioactive Materials Inspection System detection output of inceptive filtering device 1
The concentration of penetrating property substance, when the concentration of radioactive substance in initial 1 output gas of filter device is more than preset concentration threshold value, then
First isolating valve 4 can be opened, the second isolating valve 5 is closed, the gas that inceptive filtering device 1 exports passes through radioactive substance
After filter device 2 is further filtered, the external world is drained into using exhaust blower 3, to reduce the pollution of air draft.
Further, radioactive material filtration device 2 includes high efficiency particulate air filter 22, electric heater 21 and iodine filter
23。
It is connected between the input terminal of electric heater 21 and the output end of inceptive filtering device 1 by air duct, electric heater 21
Output end and high efficiency particulate air filter 22 input terminal between pass through air duct and connect, the output end of high efficiency particulate air filter 22 and iodine filter
It is connected between 23 input terminal by air duct, is connected between the output end of iodine filter 23 and the input terminal of exhaust blower 3 by air duct
It connects.
Further, it is additionally provided on the air duct between the input terminal of electric heater 21 and the output end of inceptive filtering device 1
First fire resisting damper 6, the air duct between the output end of iodine filter 23 and the input terminal of exhaust blower 3 are equipped with the second fire resisting damper 7.The
One fire resisting damper 6 and the second fire resisting damper 7 can cause fire to avoid being heated to the gas that nuclear power station is discharged.
Further, on the air duct between the input terminal of electric heater 21 and the output end of inceptive filtering device 1, first
Isolating valve 4 is located at close to 1 side of inceptive filtering device, and the first fire resisting damper 6 is located remotely from 1 side of inceptive filtering device.
Further, the air duct in nuclear power station exhaust system is the air duct that air hose is constituted, or constituted for building enclosure
Air duct.Here, the building enclosure that building enclosure can be the building enclosure of wall composition or four wall of equipment is constituted.
In conclusion the present invention had both been able to achieve normal air draft and the switching except iodine air draft, run more flexible, moreover it is possible to realize
To the function of specific radgas high-efficient purification, and equipment and space can be saved.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
1. a kind of nuclear power station exhaust system characterized by comprising inceptive filtering device, radioactive material filtration device and
Exhaust blower；
Connected respectively by air duct between the inceptive filtering device and the radioactive material filtration device and the exhaust blower
It connects, the gas that the inceptive filtering device is used to be discharged to nuclear power station is filtered, and filtered gas is sent to described and is put
Penetrating property substance filter device or the exhaust blower；The output end of the radioactive material filtration device is defeated with the exhaust blower
Enter and is connected between end by air duct；
Air duct between the inceptive filtering device and the radioactive material filtration device is equipped with the first isolating valve, and described
Air duct between inceptive filtering device and the exhaust blower is equipped with the second isolating valve；
The output end of the inceptive filtering device is equipped with the Radioactive Materials Inspection System for detecting radioactive substance concentration；
The inceptive filtering device includes primary filter and/or medium effeciency filter；When the inceptive filtering device includes
When primary filter and medium effeciency filter, lead between the output end of the primary filter and the input terminal of the medium effeciency filter
Cross air duct connection.
2. nuclear power station exhaust system according to claim 1, which is characterized in that the Radioactive Materials Inspection System is used for
Detect the concentration of radioiodine.
3. nuclear power station exhaust system according to claim 2, which is characterized in that the Radioactive Materials Inspection System is also used
In the concentration for judging the radioiodine in the inceptive filtering device output gas, when the inceptive filtering device exports gas
It when the concentration of radioiodine in body is greater than preset concentration threshold value, then controls first isolating valve and opens, and control described the
Two isolating valves are closed, when the concentration of the radioiodine in the inceptive filtering device output gas is not more than preset concentration threshold value
When, then it controls first isolating valve and closes, and control second isolating valve and open.
4. nuclear power station exhaust system according to claim 2, which is characterized in that the radioactive material filtration device includes
There are high efficiency particulate air filter, electric heater and iodine filter；
It is connected between the input terminal of the electric heater and the output end of the inceptive filtering device by air duct, the electric heating
It is connected between the output end of device and the input terminal of the high efficiency particulate air filter by air duct, the output end of the high efficiency particulate air filter and institute
State and connected between the input terminal of iodine filter by air duct, the input terminal of the output end of the iodine filter and the exhaust blower it
Between pass through air duct connect.
5. nuclear power station exhaust system according to claim 4, which is characterized in that the input terminal of the electric heater with it is described
The first fire resisting damper, the output end of the iodine filter and the row are additionally provided on air duct between the output end of inceptive filtering device
Air duct between the input terminal of blower is equipped with the second fire resisting damper.
6. nuclear power station exhaust system according to claim 4, which is characterized in that input terminal and institute in the electric heater
It states on the air duct between the output end of inceptive filtering device, first isolating valve is located at close to the inceptive filtering device side,
First fire resisting damper is located remotely from the inceptive filtering device side.
7. nuclear power station exhaust system according to claim 1, which is characterized in that the air duct in the nuclear power station exhaust system
For the air duct that air hose is constituted, or the air duct constituted for building enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086461.XA CN109405152A (en) | 2018-09-18 | 2018-09-18 | A kind of nuclear power station exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086461.XA CN109405152A (en) | 2018-09-18 | 2018-09-18 | A kind of nuclear power station exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109405152A true CN109405152A (en) | 2019-03-01 |
Family
ID=65465831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086461.XA Pending CN109405152A (en) | 2018-09-18 | 2018-09-18 | A kind of nuclear power station exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109405152A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917758A (en) * | 2019-12-20 | 2020-03-27 | 陕西同力智慧能源服务有限公司 | Real-time health monitoring system based on machine learning |
| CN111720938A (en) * | 2020-05-20 | 2020-09-29 | 岭东核电有限公司 | Control method and control system for ventilation system of nuclear auxiliary plant |
| CN112325415A (en) * | 2020-11-11 | 2021-02-05 | 四川华腾国盛科技有限公司 | Underground parking lot ventilation intelligent detection system |
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| JPS5950398A (en) * | 1982-09-16 | 1984-03-23 | 株式会社東芝 | Emergency gas processing device |
| JPH09133788A (en) * | 1995-11-08 | 1997-05-20 | Toshiba Corp | Ventilator and air conditioner for central control room of nuclear power plant |
| CN1195419A (en) * | 1995-09-01 | 1998-10-07 | 西门子公司 | Device and method for inerting and venting atmosphere in containment vessel of nuclear-power station |
| CN104517658A (en) * | 2014-12-24 | 2015-04-15 | 长江勘测规划设计研究有限责任公司 | Airborne radioactivity diffusion prevention method for underground nuclear power plant |
| CN107152991A (en) * | 2016-03-04 | 2017-09-12 | 中国辐射防护研究院 | The pilot system and test method detected for iodine adsorber slip in nuclear power station ventilating system |
-
2018
- 2018-09-18 CN CN201811086461.XA patent/CN109405152A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950398A (en) * | 1982-09-16 | 1984-03-23 | 株式会社東芝 | Emergency gas processing device |
| CN1195419A (en) * | 1995-09-01 | 1998-10-07 | 西门子公司 | Device and method for inerting and venting atmosphere in containment vessel of nuclear-power station |
| JPH09133788A (en) * | 1995-11-08 | 1997-05-20 | Toshiba Corp | Ventilator and air conditioner for central control room of nuclear power plant |
| CN104517658A (en) * | 2014-12-24 | 2015-04-15 | 长江勘测规划设计研究有限责任公司 | Airborne radioactivity diffusion prevention method for underground nuclear power plant |
| CN107152991A (en) * | 2016-03-04 | 2017-09-12 | 中国辐射防护研究院 | The pilot system and test method detected for iodine adsorber slip in nuclear power station ventilating system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917758A (en) * | 2019-12-20 | 2020-03-27 | 陕西同力智慧能源服务有限公司 | Real-time health monitoring system based on machine learning |
| CN111720938A (en) * | 2020-05-20 | 2020-09-29 | 岭东核电有限公司 | Control method and control system for ventilation system of nuclear auxiliary plant |
| CN111720938B (en) * | 2020-05-20 | 2022-01-25 | 岭东核电有限公司 | Control method and control system for ventilation system of nuclear auxiliary plant |
| CN112325415A (en) * | 2020-11-11 | 2021-02-05 | 四川华腾国盛科技有限公司 | Underground parking lot ventilation intelligent detection system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |
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| RJ01 | Rejection of invention patent application after publication |