CN102858079A - Harmful gas absorbing device for linear accelerator - Google Patents
Harmful gas absorbing device for linear accelerator Download PDFInfo
- Publication number
- CN102858079A CN102858079A CN2012103258533A CN201210325853A CN102858079A CN 102858079 A CN102858079 A CN 102858079A CN 2012103258533 A CN2012103258533 A CN 2012103258533A CN 201210325853 A CN201210325853 A CN 201210325853A CN 102858079 A CN102858079 A CN 102858079A
- Authority
- CN
- China
- Prior art keywords
- accelerator
- harmful gas
- scanning window
- air sucking
- air
- 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
- 230000005855 radiation Effects 0.000 claims abstract description 17
- 238000010894 electron beam technology Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 29
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 230000000505 pernicious effect Effects 0.000 description 15
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 206010023126 Jaundice Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a harmful gas absorbing device for a linear accelerator. The harmful gas absorbing device comprises an accelerator positioned in a radiation chamber, a moving bed positioned below the accelerator, a centrifugal ventilator positioned at the outdoor roof of the radiation chamber and an air sucking pipeline, wherein the accelerator comprises a scanning window; the air sucking pipeline is of an L shape; an air sucking port is formed at one end of the air sucking pipeline; the air sucking port is just opposite to an electronic beam outlet below the accelerator and is attached to the periphery of the scanning window; and the other end of the air sucking pipeline extends out of the radiation chamber and is connected with the centrifugal ventilator. According to the harmful gas absorbing device disclosed by the invention, the air sucking port is tightly attached to the periphery of the scanning window, and thus harmful gases are directly absorbed from a source head and high absorbing efficiency is obtained; the oxidation for a radiated article by ozone is reduced and the quality of the radiated article is improved; a protecting device is arranged for alarming when no wind exists and is manually operated or linked with the accelerator; and due to the adoption of a telescopic pipeline, a device under the electron beam is convenient to maintain; and in addition, the harmful gas absorbing device has the advantages of small size and occupied space, blowing power and electricity economization, low noise, reduced cost being half of the original cost and increased efficiency by twice.
Description
Technical field
The present invention relates to a kind of servicing unit of accelerator, be specifically related to a kind of harmful gas absorption device of linear accelerator.
Background technology
During linear accelerator work, the ray (electron beam, X ray) that produces owing to irradiation is ionized in air, the ozone of generation and nitrogen dioxide, and the beam power of linear accelerator is larger, and the pernicious gas that produces when irradiation is more, seriously affects health.
At present, the conventional method that absorbs the pernicious gas of linear accelerator generation is to adopt air blast to absorb, on the one hand, because being convenient to accelerator bundle lower device safeguards, air pipe is absorbed gas pipeline put into the radiation chamber corner, away from the source that produces pernicious gas, so can not directly pernicious gas be siphoned away such as ozone, nitrogen dioxide etc., cause pernicious gas to exceed standard, have a strong impact on health; On the other hand, owing to adopting indirect air intake device, during irradiation processing, ozone can not in time be pumped, and causes by the irradiation thing and is ionized oxidation, affects the irradiation quality.Radiation exposed object is packed with plastic packaging bag usually, so cause the plastic packaging bag jaundice, there is the ozone flavor the inside.Photographed object is along with beam power is larger, and the temperature that produces during irradiation is higher, has more accelerated the photographed object oxidation, has a strong impact on product property, the high food of irradiation moisture content especially, and existing irradiation smell, packaging material are easy oxidation discoloration also, and the user is difficult for accepting.Simultaneously, traditional absorption is harmful to gas device, lacks protective device, in case air intake device has fault, the pernicious gas severe overweight has a strong impact on health and product quality; Exist also that volume is large, noise is high, power reaches greatly the shortcomings such as power consumption.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art; position and characteristics that the present invention produces according to pernicious gas; a kind of calm defencive function that has is provided, simple, compact conformation, and can directly absorb the device of its pernicious gas from the pernicious gas source.
Technical scheme: for solving the problems of the technologies described above, the harmful gas absorption device of linear accelerator of the present invention, comprise the accelerator that is positioned at radiation chamber, be positioned at the moving bed of accelerator below, be positioned at centrifugal fan and the air-suction duct on the outer roof of radiation chamber, described accelerator comprises the scanning window, described air-suction duct be shaped as " L " shape, one end of air-suction duct is the inlet scoop, the inlet scoop face accelerator scanning window below the electron beam outlet place and be close to around the scanning window, the other end of air-suction duct stretches out the outer roof of radiation chamber and is connected with centrifugal fan.
Described air-suction duct comprises vertical section and telescopic horizontal segment, and vertical section is connected bending segment with horizontal segment and is connected, and during described horizontal segment elongation, the inlet scoop is positioned at the scanning window below of accelerator; When described horizontal segment shrank, the position movement scope of inlet scoop was between the scanning window of bending segment and accelerator.
Described centrifugal fan inside is equipped with miniature floating-ball level switch, and the contact of described miniature floating-ball level switch is connected with the remote control terminal of accelerator.When the centrifugal fan air draught, the closing of contact of miniature floating-ball level switch, accelerator normal operation; When centrifugal fan hinders for some reason or has a power failure can not air draught the time, the contact of miniature floating-ball level switch disconnects, and accelerator quits work, and sends caution, reports to the police, thereby improves security performance.
Beneficial effect: the harmful gas absorption device of linear accelerator of the present invention compared with prior art, has the following advantages:
1, the inlet scoop is close to around the scanning window, directly pernicious gas is sponged from the source, absorption efficiency is high;
2, reduce ozone to the oxidation of photographed object product, improve the quality of photographed object;
3, protection device for installing, calm warning, and manual or chain with accelerator;
4, adopt flexible pipeline, be convenient to scan the maintenance of window and moving bed, the bundle lower device is easy to maintenance;
5, volume is little, occupies the space little, saves air blast power, power saving, and noise is little, and cost is half of former cost, and efficient doubles.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 1, the harmful gas absorption device of a kind of linear accelerator of the present invention, comprise accelerator 1, the moving bed 10 that is positioned at accelerator 1 below that is positioned at radiation chamber, centrifugal fan 7 and the air-suction duct 8 that is positioned at the outer roof of radiation chamber, accelerator 1 comprises the scanning window, air-suction duct 8 be shaped as " L " shape, one end of air-suction duct 8 is inlet scoop 9, inlet scoop 9 face accelerator 1 scanning window below the electron beam outlet place and be close to around the scanning window, the other end of air-suction duct 8 stretches out the outer roof of radiation chamber and is connected with centrifugal fan 7.
The centrifugal fan 7 that adopts in the present embodiment has good aeroperformance, and impeller and belt are all through strict dynamic balance calibration, therefore have the characteristics such as smooth running, noise is low, vibration is little, the life-span is long.
In the present embodiment, air-suction duct 8 comprises vertical section 81 and telescopic horizontal segment 83, and vertically section 81 is connected with horizontal segment and is connected by bending segment 82, and during horizontal segment 83 elongation, inlet scoop 9 is positioned at the scanning window below of accelerator 1; When horizontal segment 83 shrank, the position movement scope of inlet scoop 9 was between the scanning window of bending segment 82 and accelerator 1.Owing to adopting contractile horizontal segment 83, so regulate conveniently, when the bundle lower device is safeguarded, horizontal segment 83 is shunk, save the space, avoid causing the obstacle on the space, be more convenient for safeguarding.Vertically section 81 walls that usually can be close to radiation chamber are installed.Centrifugal fan 7 inside are equipped with miniature floating-ball level switch, and the contact of miniature floating-ball level switch is connected with the remote control terminal of accelerator 1.When centrifugal fan 7 air draught, miniature floating-ball level switch is closed, and accelerator 1 normal transmission goes out electron beam; When centrifugal fan 7 hinders for some reason or has a power failure can not air draught the time, miniature floating-ball level switch disconnects, and accelerator 1 quits work, and sends caution, reports to the police, thereby improves security performance.
The harmful gas absorption device of linear accelerator of the present invention in use, the ray (electron beam, X ray) that linear accelerator irradiation produces aloft ionizes, produce the pernicious gases such as ozone and nitrogen dioxide, the beam power of linear accelerator is larger, the pernicious gas that produces when irradiation is more, seriously affects health and photographed object product quality.In the time of linear accelerator work, open centrifugal fan 7, and inlet scoop 9 is faced the electron beam outlet place of accelerator 1 below, can effectively absorb the pernicious gas that produces because of ionization.Accelerator 1 below is moving bed 10, the width of moving bed 10 is generally about 60 ~ 100 ㎝, the upper surface of moving bed 10 is generally about 60 ㎝ apart from the distance of the lower surface of accelerator 1, moving bed 10 is provided with need to be by the article of radiation, for example need by medical articles for use food or other article of sterilization, moving bed 10 can move in orbit, and moving bed 10 passes in moving process below the accelerator 1, and the electron beam of accelerator 1 carries out irradiation to the article on it.After adopting the harmful gas absorption device of linear accelerator of the present invention, can directly pernicious gas be siphoned away, can improve by the quality of irradiation products, especially the high food of irradiation moisture content, can avoid producing irradiation smell, avoid the packaging material oxidation stain, improve article quality, satisfy user's demand.
The above only is preferred implementation of the present invention; be noted that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. the harmful gas absorption device of a linear accelerator, it is characterized in that: comprise the accelerator (1) that is positioned at radiation chamber, be positioned at the moving bed (10) of accelerator (1) below, be positioned at centrifugal fan (7) and the air-suction duct (8) on the outer roof of radiation chamber, described accelerator (1) comprises the scanning window, described air-suction duct (8) be shaped as " L " shape, one end of air-suction duct (8) is inlet scoop (9), inlet scoop (9) face accelerator (1) scanning window below the electron beam outlet place and be close to around the scanning window, the other end of air-suction duct (8) stretches out the outer roof of radiation chamber and is connected with centrifugal fan (7).
2. the harmful gas absorption device of linear accelerator according to claim 1, it is characterized in that: described air-suction duct (8) comprises vertical section (81) and telescopic horizontal segment (83), vertically section (81) is connected 83 with horizontal segment) connect by bending segment (82), during described horizontal segment (83) elongation, inlet scoop (9) are positioned at the scanning window below of accelerator (1); When described horizontal segment (83) shrank, the position movement scope of inlet scoop (9) was between the scanning window of bending segment (82) and accelerator (1).
3. the harmful gas absorption device of linear accelerator according to claim 1 and 2, it is characterized in that: described centrifugal fan (7) inside is equipped with miniature floating-ball level switch, and the contact of described miniature floating-ball level switch is connected with the remote control terminal of accelerator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103258533A CN102858079A (en) | 2012-09-05 | 2012-09-05 | Harmful gas absorbing device for linear accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103258533A CN102858079A (en) | 2012-09-05 | 2012-09-05 | Harmful gas absorbing device for linear accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102858079A true CN102858079A (en) | 2013-01-02 |
Family
ID=47404169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103258533A Pending CN102858079A (en) | 2012-09-05 | 2012-09-05 | Harmful gas absorbing device for linear accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102858079A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878670A2 (en) * | 1997-05-15 | 1998-11-18 | Bähren & Rosenkranz KG (Bäro) | Working device, in particular safety workbench |
| US6170444B1 (en) * | 1996-04-12 | 2001-01-09 | Hans-Armin Ohlmann | Air and exhaust gas management system for a two-cycle internal combustion engine |
| JP2002001131A (en) * | 2000-06-26 | 2002-01-08 | Mitsubishi Heavy Ind Ltd | Apparatus for regenerating ozone catalyst in electron beam irradiation equipment |
| JP2003156598A (en) * | 2001-11-20 | 2003-05-30 | Mitsubishi Heavy Ind Ltd | Method and system for preventing ozone from flowing out in electron beam irradiator |
| CN1988794A (en) * | 2006-12-23 | 2007-06-27 | 张祥华 | Semi underground debugging test pit for electronic accelerator |
| CN201353577Y (en) * | 2008-12-25 | 2009-12-02 | 周煌 | Movable plasma welding fume purifier |
| CN201408468Y (en) * | 2009-05-19 | 2010-02-17 | 深圳市金鹏源辐照技术有限公司 | Smoke alarm installation structure and irradiation system |
| CN201820467U (en) * | 2010-10-21 | 2011-05-04 | 浙江银都辐照技术有限公司 | Irradiation system for conveniently and quickly removing ozone |
| CN202750326U (en) * | 2012-09-05 | 2013-02-20 | 南京大学 | Harmful gas absorption apparatus of linear accelerator |
-
2012
- 2012-09-05 CN CN2012103258533A patent/CN102858079A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170444B1 (en) * | 1996-04-12 | 2001-01-09 | Hans-Armin Ohlmann | Air and exhaust gas management system for a two-cycle internal combustion engine |
| EP0878670A2 (en) * | 1997-05-15 | 1998-11-18 | Bähren & Rosenkranz KG (Bäro) | Working device, in particular safety workbench |
| JP2002001131A (en) * | 2000-06-26 | 2002-01-08 | Mitsubishi Heavy Ind Ltd | Apparatus for regenerating ozone catalyst in electron beam irradiation equipment |
| JP2003156598A (en) * | 2001-11-20 | 2003-05-30 | Mitsubishi Heavy Ind Ltd | Method and system for preventing ozone from flowing out in electron beam irradiator |
| CN1988794A (en) * | 2006-12-23 | 2007-06-27 | 张祥华 | Semi underground debugging test pit for electronic accelerator |
| CN201353577Y (en) * | 2008-12-25 | 2009-12-02 | 周煌 | Movable plasma welding fume purifier |
| CN201408468Y (en) * | 2009-05-19 | 2010-02-17 | 深圳市金鹏源辐照技术有限公司 | Smoke alarm installation structure and irradiation system |
| CN201820467U (en) * | 2010-10-21 | 2011-05-04 | 浙江银都辐照技术有限公司 | Irradiation system for conveniently and quickly removing ozone |
| CN202750326U (en) * | 2012-09-05 | 2013-02-20 | 南京大学 | Harmful gas absorption apparatus of linear accelerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202750326U (en) | Harmful gas absorption apparatus of linear accelerator | |
| CN201501920U (en) | Blowing-sucking waster gas collecting device above batch hot-dip galvanizing bath | |
| CN206081137U (en) | Ozone air sterilizing apparatus | |
| CN203408961U (en) | Experimental ventilation cabinet | |
| CN102858079A (en) | Harmful gas absorbing device for linear accelerator | |
| CN206484613U (en) | A kind of airduct processes cutting machine dedusting mechanism | |
| CN202561866U (en) | Integrated smoke-exhausting purification device | |
| CN209095123U (en) | A kind of numerical control cutting machine safety guard with circulating cooling function | |
| CN101545664A (en) | Ultrasonic humidifier | |
| CN214619962U (en) | Elevator with disinfection function | |
| CN211981210U (en) | Intelligent power distribution cabinet | |
| CN111677678B (en) | Low-noise fire-fighting and ventilation dual-purpose cabinet type centrifugal fan | |
| CN205811356U (en) | A kind of electrical control gear | |
| CN202087555U (en) | Intelligently-controlled air shower pass window | |
| CN206563365U (en) | Air purifier with environment monitoring function | |
| CN206828357U (en) | Quick kettle | |
| CN205002193U (en) | A novel powerful smoke extractor that is used for kitchen fried dish oil absorption cigarette | |
| CN206785590U (en) | A kind of heat sinking permanent-magnetic variable-frequency air compressor | |
| CN219656364U (en) | Drainage steam buffer of pulsation vacuum sterilizer | |
| CN211317958U (en) | Soil sample drying and heat-insulating device for soil detection | |
| CN206041247U (en) | Electric power cabinet | |
| CN207815438U (en) | A kind of liftable range hood | |
| CN201269597Y (en) | Air purifier with vertical air intake | |
| CN206145835U (en) | Multi -functional medical cabinet of airing exhaust | |
| CN205172346U (en) | Circulation of air regulation type door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130102 |