CN102708940A - Wet waste drying device for nuclear power plant - Google Patents
Wet waste drying device for nuclear power plant Download PDFInfo
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- CN102708940A CN102708940A CN2012101570658A CN201210157065A CN102708940A CN 102708940 A CN102708940 A CN 102708940A CN 2012101570658 A CN2012101570658 A CN 2012101570658A CN 201210157065 A CN201210157065 A CN 201210157065A CN 102708940 A CN102708940 A CN 102708940A
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Abstract
The invention relates to a wet waste drying device for a nuclear power plant. The wet waste drying device comprises a drying box, a circulation air blower, an air heating device, a circulation pipeline, a condensed liquid recovery assembly and an electric control cabinet; the electric control cabinet is located at one side of the drying box; an air inlet and an air outlet are respectively arranged at the both sides of the top of the drying box; the middle part of the circulation pipeline is communicated and connected with an air supply pipeline; and a left side pipe path of the circulation pipeline is sequentially connected with the circulation air blower and the air heating device, and then is communicated and connected with the air outlet. The wet waste drying device has the advantages as follows: the structure is simple, the technology is feasible, the security and reliability are high, and the manufacturing cost is low; the wet waste drying device has the main functions of placing wet wastes collected by waste treatment facilities and collected in a three-waste area in the drying box, so as to pre-heat, dry and cool the wet wastes; no obvious condensed liquid is separated out within a certain period after the wet wastes are dried; and meanwhile, the wet waste drying device can be used for collecting and using vapor and condensed water, which are separated in a wet waste drying process.
Description
Technical field
The present invention relates to a kind of nuclear power plant waste disposal facilities, particularly a kind of nuclear power plant refuse drying unit that wets.
Background technology
The construction of nuclear power plant operation has brought quite high society and economic benefit, but along with the operation of nuclear power plant, inevitably produces a certain amount of wet refuse, the soft solid refuse of promptly low, middle horizontal radiation property.These wet refuses have very strong radioactivity, physical environment are had strong destruction with biological, so how to handle the key that these nuclear wastes are safe utilization nuclear energy effectively.
Summary of the invention
The object of the invention is exactly the problem in the background technology, and a kind of nuclear power plant refuse drying unit that wets is provided.
For achieving the above object; The present invention adopts following technical scheme: a kind of nuclear power plant refuse drying unit that wets; Comprise baking oven, circulating fan, air heating apparatus, circulating line, condensed fluid reclaim assembly and in establish the electrical control cubicles of electrical control supervisory system, electrical control cubicles is positioned at the outer side of baking oven, both sides, baking oven top are respectively equipped with air intake opening and exhausr port; Said circulating line middle part is connected with supply air line; Be connected with air intake opening after connecting circulating fan and air heating apparatus on the left side pipeline of circulating line successively, its right side pipeline reclaims assembly with condensed fluid and is connected, and its pipeline end, right side is connected with exhausr port.
For a kind of optimization of the present invention; Said baking oven one side is provided with the CO2 fire extinguishing system; Be provided with the laser smog analyser that is used to monitor smokescope in the baking oven, the laser smog analyser is communicated by letter with the electrical control supervisory system and is connected, electrical control supervisory system and CO2 fire extinguishing system control linkage.
For a kind of optimization of the present invention, be provided with the on-line monitoring analyser that is used to monitor CO, CH4 concentration in the baking oven, the on-line monitoring analyser is communicated by letter with the electrical control supervisory system and is connected.
For a kind of optimization of the present invention; Condensed fluid reclaims assembly and is made up of condenser system, Separate System of Water-jet and condensed fluid recovery system; Condenser system comprises condenser and the refrigeration compressor set that is used with condenser; Separate System of Water-jet comprises gas-liquid separator, and the condensed fluid recovery system comprises the condensed fluid storage tank, and circulating line is connected in series with condenser, gas-liquid separator and condensed fluid storage tank through pipeline near exhausr port one side successively.
For a kind of optimization of the present invention, be provided with first operation valve with the circulating line link on the supply air line, the connecting line that circulating line right side pipeline and condensed fluid reclaim assembly is provided with second operation valve.
For a kind of optimization of the present invention, the connecting line between condensed fluid storage tank and the gas-liquid separator is provided with the 3rd operation valve.
For a kind of optimization of the present invention, Separate System of Water-jet also comprises the cooling blower on the outlet pipe that is arranged at gas-liquid separator.
For a kind of optimization of the present invention, said air heating apparatus adopts electric heating system.
For a kind of optimization of the present invention, said baking oven comprises oven body and shell, stuffed heat insulated layer between oven body and the shell.
For a kind of optimization of the present invention, the condensed fluid storage tank is provided with the liquid level display that is used to detect the evaporation rate of baking oven and judges wet refuse drying effect.
The present invention has simple in structure; Technical feasibility, safe and reliable; Cost of manufacture is low; Its major function is that the wet refuse of waste disposal facilities and the collection of three wastes district is inserted in the baking oven, thereby wet refuse is realized processes such as preheating, oven dry, cooling, and oven dry back no obvious condensed fluid in the certain hour section is separated out; Simultaneously steam, the condensate water of separating out in the wet refuse drying course are collected utilization.
Description of drawings
Fig. 1 is the principle schematic of the wet refuse drying unit of nuclear power plant.
Embodiment
Embodiment 1: with reference to Fig. 1.A kind of nuclear power plant refuse drying unit that wets; Comprise baking oven 1, circulating fan 7, air heating apparatus 6, circulating line 9, condensed fluid reclaim assembly A and in establish the electrical control cubicles 2 of electrical control supervisory system; Electrical control cubicles 2 is positioned at baking oven 1 an outer side; Both sides, baking oven 1 top are respectively equipped with air intake opening 1a and exhausr port 1b, and said circulating line 9 middle parts are connected with supply air line, connect circulating fan 7 on the left side pipeline of circulating line 9 successively and are connected with air intake opening 1a with air heating apparatus 6 backs; Its right side pipeline reclaims assembly A with condensed fluid and is connected, and its pipeline end, right side is connected with exhausr port 1b.Said baking oven 1 one sides are provided with CO2 fire extinguishing system 3, are provided with the laser smog analyser 4 that is used to monitor smokescope in the baking oven 1, and laser smog analyser 4 is communicated by letter with the electrical control supervisory system and is connected, electrical control supervisory system and CO2 fire extinguishing system 3 control linkages.Be provided with the on-line monitoring analyser 5 that is used to monitor CO, CH4 concentration in the baking oven 1, on-line monitoring analyser 5 is communicated by letter with the electrical control supervisory system and is connected.Condensed fluid reclaims assembly A and is made up of condenser system, Separate System of Water-jet and condensed fluid recovery system; Condenser system comprises condenser 11 and the refrigeration compressor set 12 that is used with condenser 11; Separate System of Water-jet comprises gas-liquid separator 14; The condensed fluid recovery system comprises condensed fluid storage tank 16, and circulating line 9 is connected in series with condenser 11, gas-liquid separator 14 and condensed fluid storage tank 16 through pipeline near exhausr port 1b one side successively.Be provided with first operation valve 8 with circulating line 9 links on the supply air line, the connecting line that circulating line 9 right side pipelines and condensed fluid reclaim assembly A is provided with second operation valve 10.Connecting line between condensed fluid storage tank 16 and the gas-liquid separator 14 is provided with the 3rd operation valve 15.Separate System of Water-jet also comprises the cooling blower 13 on the outlet pipe that is arranged at gas-liquid separator 14.Said air heating apparatus 6 adopts electric heating system.Said baking oven 1 comprises baking oven 1 body and shell, stuffed heat insulated layer between baking oven 1 body and the shell.Condensed fluid storage tank 16 is provided with the liquid level display that is used to detect the evaporation rate of baking oven 1 and judges wet refuse drying effect.
Embodiment 2: with reference to Fig. 1.The main composition and the function of the wet refuse drying unit of a kind of nuclear power plant:
1) baking oven 1: baking oven 1 body of baking oven 1 and shell all adopt stainless steel to make, and stuffed heat insulated layer makes the box outer surface temperature be lower than 45 ℃ between baking oven 1 body and the shell, and baking oven 1 top is provided with inlet and outlet mouth 1b.
2) air heating apparatus 6: this device is positioned at baking oven 1 top, adopts the finned W type of explosion-proof type heating tube.Heating tube is set at temperature in the baking oven 1 and controls the startup of heating tube and the startup quantity of heating tube, and the temperature uniformity of permission is franchise ± 3 ℃ in the baking oven 1.
3) circulating line 9 and circulating fan 7: the two ends of circulating line 9 are connected with the inlet and outlet mouth 1b at baking oven 1 top respectively, and circulating line 9 left sides are provided with variable valve with the pipeline that air intake opening 1a is connected, and this variable valve is used for regulating system pressure reduction.The negative pressure setting value of baking oven 1 is the entry condition of circulating fan 7, and circulating fan 7 starts automatically when reaching the negative pressure setting value.
4) condensed fluid reclaims assembly A: be made up of condenser system, Separate System of Water-jet and condensed fluid recovery system; Under the swabbing action of cooling blower 13, damp-heat air is carried out heat interchange through condenser 11; Make the damp-heat air temperature reduce the gas liquid mixture of 20 ℃ of state of saturation of condensation written treaty.Again through Separate System of Water-jet, with condensed fluid and air separation, gas-liquid separator 14 adopts is separated into centrifuging; Condensed fluid finally is collected in the condensed fluid storage tank 16, and through liquid level control, when reaching certain reserves, condensed fluid is through in the hydrophobic blowdown vessel that flow to the special sewerage of SRTF certainly; In condensed fluid storage tank 16, liquid level display is set, is used to detect the evaporation rate of baking oven 1, judge wet refuse drying effect.Cooling blower 13 disposes converter plant, and it enters room ventilation systems with condensed gas when oven dry, keep certain negative pressure in the baking oven 1 simultaneously, is less than about the about 100Pa of room room pressure.
5) the on-line monitoring analyser 5: owing to possibly contained alcohol, detergent, acetone, kerosene etc. in the dry material; Alcohol, acetone can not produce cracking in heating process; Detergent and kerosene are because complicated component; Might produce the CO and the CH4 of trace in the heating process, after CO or CH4 reach finite concentration, will blast, therefore must carry out CO and the on-line monitoring of CH4 concentration whole drying system.On-line monitoring analyser 5 adopts fiber optics and infrared diode laser technology, need not sampling, measurement gas component and temperature, and built-in calibration system can be realized Long-distance Control and diagnosis.
6) the CO2 fire extinguishing system 3: through the laser smog analyser 4 in the baking oven 1; Smokescope in the online detection baking oven 1 when smokescope reaches setting value, is sent signal and is given CO2 fire extinguishing system 3; Thereby CO2 is injected baking oven 1; Reduce airborne oxygen content, reduce the temperature of comburant, realize that fire extinguishing is to stop the generation of fire.
What need understand is: though present embodiment is to the present invention's detailed explanation of contrasting; But these explanations, just to simple declaration of the present invention, rather than limitation of the present invention; Any innovation and creation that do not exceed in the connotation of the present invention all fall into protection scope of the present invention.
Claims (10)
1. the wet refuse drying unit of a nuclear power plant; It is characterized in that: it comprise baking oven, circulating fan, air heating apparatus, circulating line, condensed fluid reclaim assembly and in establish the electrical control cubicles of electrical control supervisory system; Electrical control cubicles is positioned at the outer side of baking oven; Both sides, baking oven top are respectively equipped with air intake opening and exhausr port, and said circulating line middle part is connected with supply air line, are connected with air intake opening after connecting circulating fan and air heating apparatus on the left side pipeline of circulating line successively; Its right side pipeline reclaims assembly with condensed fluid and is connected, and its pipeline end, right side is connected with exhausr port.
2. the nuclear power plant according to claim 1 refuse drying unit that wets; It is characterized in that: said baking oven one side is provided with the CO2 fire extinguishing system; Be provided with the laser smog analyser that is used to monitor smokescope in the baking oven; The laser smog analyser is communicated by letter with the electrical control supervisory system and is connected, electrical control supervisory system and CO2 fire extinguishing system control linkage.
3. the nuclear power plant according to claim 1 refuse drying unit that wets, it is characterized in that: be provided with the on-line monitoring analyser that is used to monitor CO, CH4 concentration in the baking oven, the on-line monitoring analyser is communicated by letter with the electrical control supervisory system and is connected.
4. the nuclear power plant according to claim 1 refuse drying unit that wets; It is characterized in that: condensed fluid reclaims assembly and is made up of condenser system, Separate System of Water-jet and condensed fluid recovery system; Condenser system comprises condenser and the refrigeration compressor set that is used with condenser; Separate System of Water-jet comprises gas-liquid separator, and the condensed fluid recovery system comprises the condensed fluid storage tank, and circulating line is connected in series with condenser, gas-liquid separator and condensed fluid storage tank through pipeline near exhausr port one side successively.
5. the nuclear power plant according to claim 1 refuse drying unit that wets is characterized in that: be provided with first operation valve with the circulating line link on the supply air line, the connecting line that circulating line right side pipeline and condensed fluid reclaim assembly is provided with second operation valve.
6. the nuclear power plant according to claim 4 refuse drying unit that wets, it is characterized in that: the connecting line between condensed fluid storage tank and the gas-liquid separator is provided with the 3rd operation valve.
7. the nuclear power plant according to claim 4 refuse drying unit that wets, it is characterized in that: Separate System of Water-jet also comprises the cooling blower on the outlet pipe that is arranged at gas-liquid separator.
8. the nuclear power plant according to claim 1 refuse drying unit that wets is characterized in that: said air heating apparatus adopts electric heating system.
9. the nuclear power plant according to claim 1 refuse drying unit that wets, it is characterized in that: said baking oven comprises oven body and shell, stuffed heat insulated layer between oven body and the shell.
10. the nuclear power plant according to claim 1 refuse drying unit that wets is characterized in that: the condensed fluid storage tank is provided with the liquid level display that is used to detect the evaporation rate of baking oven and judges wet refuse drying effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210157065.8A CN102708940B (en) | 2012-05-21 | 2012-05-21 | Wet waste drying device for nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210157065.8A CN102708940B (en) | 2012-05-21 | 2012-05-21 | Wet waste drying device for nuclear power plant |
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| CN102708940A true CN102708940A (en) | 2012-10-03 |
| CN102708940B CN102708940B (en) | 2017-07-21 |
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| CN201210157065.8A Active CN102708940B (en) | 2012-05-21 | 2012-05-21 | Wet waste drying device for nuclear power plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930913A (en) * | 2012-11-22 | 2013-02-13 | 中电投远达环保工程有限公司 | Radioactive wet waste drying system |
| CN107830698A (en) * | 2017-12-07 | 2018-03-23 | 航天晨光股份有限公司 | Drying system and drying means in a kind of radioactive solid waste stove |
| CN112927832A (en) * | 2019-12-05 | 2021-06-08 | 中核四0四有限公司 | Device and method for preventing series connection of factory exhaust and process exhaust |
Citations (6)
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| GB2096389A (en) * | 1981-03-03 | 1982-10-13 | Nat Nuclear Corp Ltd | A dry store for irradiated nuclear fuel or highly active waste having a drying system for the fuel or waste |
| US4626414A (en) * | 1982-01-08 | 1986-12-02 | GNS Gesellschaft fur Nuklear-Service mbH | Apparatus for the packaging of radioactive wastes in storage containers |
| CN1043286A (en) * | 1989-03-25 | 1990-06-27 | 辛益群 | Desicator |
| JPH09218295A (en) * | 1996-02-09 | 1997-08-19 | Kobe Steel Ltd | Drying apparatus for radioactive solid waste and processing method thereof |
| CN202141290U (en) * | 2011-06-21 | 2012-02-08 | 邢东辉 | An intelligent oven |
| CN202615809U (en) * | 2012-05-21 | 2012-12-19 | 浙江博凡动力装备有限公司 | Drying device for wet waste of nuclear power plant |
-
2012
- 2012-05-21 CN CN201210157065.8A patent/CN102708940B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2096389A (en) * | 1981-03-03 | 1982-10-13 | Nat Nuclear Corp Ltd | A dry store for irradiated nuclear fuel or highly active waste having a drying system for the fuel or waste |
| US4626414A (en) * | 1982-01-08 | 1986-12-02 | GNS Gesellschaft fur Nuklear-Service mbH | Apparatus for the packaging of radioactive wastes in storage containers |
| CN1043286A (en) * | 1989-03-25 | 1990-06-27 | 辛益群 | Desicator |
| JPH09218295A (en) * | 1996-02-09 | 1997-08-19 | Kobe Steel Ltd | Drying apparatus for radioactive solid waste and processing method thereof |
| CN202141290U (en) * | 2011-06-21 | 2012-02-08 | 邢东辉 | An intelligent oven |
| CN202615809U (en) * | 2012-05-21 | 2012-12-19 | 浙江博凡动力装备有限公司 | Drying device for wet waste of nuclear power plant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930913A (en) * | 2012-11-22 | 2013-02-13 | 中电投远达环保工程有限公司 | Radioactive wet waste drying system |
| CN107830698A (en) * | 2017-12-07 | 2018-03-23 | 航天晨光股份有限公司 | Drying system and drying means in a kind of radioactive solid waste stove |
| CN112927832A (en) * | 2019-12-05 | 2021-06-08 | 中核四0四有限公司 | Device and method for preventing series connection of factory exhaust and process exhaust |
| CN112927832B (en) * | 2019-12-05 | 2024-05-14 | 中核四0四有限公司 | Device and method for avoiding cross connection of factory exhaust and process exhaust |
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| Publication number | Publication date |
|---|---|
| CN102708940B (en) | 2017-07-21 |
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Address after: Qingfeng South Qin Town Industrial Zone Jiaxing Haiyan County in Zhejiang province 314300 City Road Applicant after: ZHEJIANG BOFINE POWER EQUIPMENT LIMITED BY SHARE LTD. Address before: Qingfeng South Qin Town Industrial Zone Jiaxing Haiyan County in Zhejiang province 314300 City Road Applicant before: Zhejiang Bofan Power Equipment Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG BOFINE POWER EQUIPMENT CO., LTD. TO: ZHEJIANG BOFAN POWER EQUIPMENT CO., LTD. |
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