CN106193956A - A kind of biological shielding door - Google Patents
A kind of biological shielding door Download PDFInfo
- Publication number
- CN106193956A CN106193956A CN201610757081.9A CN201610757081A CN106193956A CN 106193956 A CN106193956 A CN 106193956A CN 201610757081 A CN201610757081 A CN 201610757081A CN 106193956 A CN106193956 A CN 106193956A
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- China
- Prior art keywords
- door
- biological shielding
- locking
- door leaf
- limit switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention belongs to nuclear power station special door facility technology field, specifically provide a kind of biological shielding door, including electric-control system and be fixed on the doorframe at body of wall door opening, described doorframe includes left-hand door frame, right doorframe and upper door frame, described left-hand door frame, right doorframe side have left-hand door to fan and right door leaf by hinge respectively, also include the mechanism for opening/closing electrically connected with electric-control system respectively, retaining mechanism, unlatching limit switch, close limit switch and locking limit switch;This biological shielding door that the present invention provides, simple in construction, easily manufactured, open and close smooth and easy, improve mechanical stability, safe and reliable, effectively meet nuclear power station and use requirement.
Description
Technical field
The invention belongs to nuclear power station special door facility technology field, be specifically related to a kind of biological shielding door.
Background technology
Country's Eleventh Five-Year Plan proposes in terms of nuclear power autonomy-oriented: realize advanced kilowatt pressurized water reactor nuclear power station
Autonomous Design, autonomous manufacture, autonomous build and independently run, sets up the construction integrated with international most advanced level and runing comprehensively and manage
Reason pattern, is formed than more complete autonomy-oriented Nuclear Power Industry system.In the engineering that early stage domestic nuclear power is built, due to domestic
Nuclear power corollary equipment design and fabrication technology is the most ripe, so supporting nuclear power station biological shielding door is all by abroad entering
Mouthful, its procurement cycle is long, and cost is high, and special door maintenance and the maintenance work after putting into effect to nuclear power station brings very
The most difficult.It is thus desirable to the design of domestic Construction of Nuclear Electricity Corporation R & D special door and the domestic technology of manufacture, meet domestic nuclear power
Stand the autonomy-oriented demand of special door auxiliary products.
Summary of the invention
It is an object of the invention to provide a kind of biological shielding door, door leaf can be automatically controlled and open or lock, it is possible to meet
Nuclear power station special door technology requirement,
To this end, the invention provides a kind of biological shielding door, including electric-control system be fixed on the doorframe at body of wall door opening, described
Doorframe includes left-hand door frame, right doorframe and upper door frame, described left-hand door frame, right doorframe side respectively by hinge have left-hand door fan and
Right door leaf, also includes the mechanism for opening/closing electrically connected with electric-control system respectively, retaining mechanism, unlatching limit switch, cuts out spacing opening
Close and locking limit switch;Described mechanism for opening/closing have two and be respectively arranged on left-hand door fan and right door leaf on, described mechanism for opening/closing by
Reducing motor, drive link, slideway, rotating shaft and rolling bearing composition, one end of described drive link passes with the output shaft of reducing motor
Being dynamically connected, the other end is connected in slideway by rotating shaft, and rotating shaft is provided with rolling bearing, and described reducing motor is fixed on upper door frame
On, described slideway is horizontally placed on left-hand door fan or right door leaf top;
Left-hand door frame, right doorframe and upper door frame use 50mm or 30mm steel plate, and material is Q235-B, and workshop jig is carried out
Welding, welding is carried out with reference to GB50661-2011 welding for steel structure specification, it is ensured that the flatness error of framework is not more than 4mm, right
Linea angulata error is not more than 4mm, and straightness error is not more than 3mm.Firer, machinery rectification, postwelding milling flat is carried out if any overproof.Weldering
Connecing employing butt welding, fillet welding, face of weld polishes.
Door leaf uses 152mm steel plate, and material is Q235-B, and interior outside uses 22mm steel plate, and material is that Q235-B overlays on week
Limit, welds inside and outside skeleton, uses 60*40*2 square tube in the middle of door leaf, material is Q235-B, and surface 2mm Q235-B steel plate covers
Lid, door leaf flatness error is not more than 3mm, and perpendicularity is not more than 3mm.Door leaf can effectively shield ionizing radiation, fire prevention, every
Heat, shock resistance effect are preferable.
Electric-control system uses three-phase current, and rated voltage U=380V, rated frequency is 50Hz.
The reducing motor of mechanism for opening/closing drives drive link motion, and owing to slideway is fixed on door leaf top, drive link is by turning
Axle is fixed on slideway, and the drive link of motion drives door leaf motion, it is achieved the keying of door.Reduce function loss, improve machinery steady
Qualitative and reliability.
Described left-hand door fan, right door leaf are respectively equipped with retaining mechanism away from the side of hinge, and described retaining mechanism includes locking
Motor, upper locking drive link, lower locking drive link, upper bolt, lower bolt, upper bolt shell and lower bolt shell, described locking
The output shaft of motor is connected with upper locking drive link and lower locking drive link by adapter sleeve respectively, described upper locking drive link and
The upper bolt being located in bolt shell connects, and upper door frame is provided with the latch plate of visiting being used in combination with upper bolt, described lower lock
Tight drive link is connected with the lower bolt being located in lower bolt shell, door opening bottom be provided with lower bolt with the use of lower bolt
Plate;
Locking motor start, in promotion bolt, lower bolt respectively in upper bolt shell and lower bolt shell on up or down
Mobile, upper bolt, lower bolt are arranged in respectively at latch plate of visiting, Xiamen latch plate, thus realize the locking of door leaf.
Described mechanism for opening/closing is located at described biological shielding outer side of door, and described retaining mechanism is located in described biological shielding door
Side, described unlatching limit switch has two and is positioned at biological shielding outer side of door, and two unlatching limit switches are respectively arranged on two doors
Fan top and nearly hinge side, described cut out limit switch has two and is positioned at inside biological shielding door, closes spacing opening for two
Pass is respectively arranged on two door leaf tops and nearly upper bolt shell side;Described locking limit switch has two and lays respectively at and visit
On the downside of door bolt shell.
As the improvement in structure, described reducing motor and locking motor are equiped with handwheel respectively.All switch gate actions
Manually controllable, rotate handwheel drive motor action and realize manually.
Anti-as being embedded with respectively at gap in the improvement in structure, described left-hand door fan and the periphery of right door leaf and interface
Fire adhesive tape.Eliminate door leaf and doorframe gap, stop fire, cigarette, heat outwards to be overflowed.
As preferably, described fireproofing glue strip is ammonium sulfide adhesive tape.
As the improvement in structure, described left-hand door fan, right door leaf top are respectively equipped with two hangers.It is easy to the upset of door leaf
With lifting.
As the improvement in structure, inside described left-hand door fan, inside right door leaf respectively and between left-hand door frame, right doorframe between
Gap≤5mm.Door leaf size exceedes hole will effectively reduce the radiation at gap.
As the improvement in structure, in the interface of described left-hand door fan and right door leaf, seam is stepped groove and tognue type.Prevent straight line
The x radiation x of type.
Beneficial effects of the present invention: this biological shielding door that the present invention provides, simple in construction, easily manufactured, open and close suitable
Freely, improve mechanical stability, safe and reliable, effectively meet nuclear power station and use requirement.
Accompanying drawing explanation
Fig. 1 is the outboard structure schematic diagram of biological shielding door provided by the present invention.
Fig. 2 is the top view under biological shielding door closure state provided by the present invention.
Fig. 3 is the top view under biological shielding door open mode provided by the present invention.
Fig. 4 is the inside structure schematic diagram of biological shielding door provided by the present invention.
Fig. 5 is enlarged drawing at A in Fig. 2.
Fig. 6 is the axonometric chart of biological shielding door provided by the present invention.
Fig. 7 is the axonometric chart of another angle of biological shielding door provided by the present invention.
Fig. 8 is the structural representation of mechanism for opening/closing provided by the present invention.
Fig. 9 is the structural representation of retaining mechanism provided by the present invention.
Description of reference numerals: 1, doorframe;1.1, left-hand door frame;1.2, right doorframe;1.3, upper door frame;2, left-hand door fan;3, You Men
Fan;4, limit switch is opened;5, hinge;6, mechanism for opening/closing;6.1, reducing motor;6.2, drive link;6.3, slideway;6.4, roll
Bearing;6.5, rotating shaft;7, retaining mechanism;7.1, locking motor;7.2, adapter sleeve;7.3, upper locking drive link;7.4, upper bolt
Shell;7.5, upper bolt;7.6, lower bolt;7.7, lower locking drive link;7.8, lower bolt shell;8, locking limit switch;9、
Close limit switch;10, hanger;11, visit latch plate;12, Xiamen latch plate.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with the present invention.
Embodiment 1:
A kind of biological shielding door as shown in Fig. 1,2,3,4,6 and 7, including electric-control system and be fixed on the doorframe at body of wall door opening
1, described doorframe 1 includes left-hand door frame 1.1, right doorframe 1.2 and upper door frame 1.3, and described left-hand door frame 1.1, right doorframe 1.2 side are respectively
It is hinged with left-hand door fan 2 and right door leaf 3 by hinge 5, also includes mechanism for opening/closing 6, the locking machine electrically connected with electric-control system respectively
Structure 7, unlatching limit switch 4, closedown limit switch 9 and locking limit switch 8;Described mechanism for opening/closing 6 has two and is respectively arranged on
Left-hand door fan 2 and right door leaf 3 on, as shown in Figure 8, described mechanism for opening/closing 6 by reducing motor 6.1, drive link 6.2, slideway 6.3, turn
Axle 6.5 and rolling bearing 6.4 form, and one end of described drive link 6.2 is in transmission connection with the output shaft of reducing motor 6.1, another
End is connected in slideway 6.3 by rotating shaft 6.5, and rotating shaft 6.5 is provided with rolling bearing 6.4, and described reducing motor 6.1 is fixed on
On doorframe 1.3, described slideway 6.3 is horizontally placed on left-hand door fan 2 or right door leaf 3 tops;
Left-hand door frame 1.1, right doorframe 1.2 and upper door frame 1.3 use 50mm or 30mm steel plate, and material is Q235-B, and workshop is welded
Welding on platform, welding is carried out with reference to GB50661-2011 welding for steel structure specification, it is ensured that the flatness error of framework is not
More than 4mm, diagonal error is not more than 4mm, and straightness error is not more than 3mm.Firer, machinery rectification, weldering is carried out if any overproof
Rear milling flat.Welding uses butt welding, fillet welding, and face of weld polishes.
Door leaf uses 152mm steel plate, and material is Q235-B, and interior outside uses 22mm steel plate, and material is that Q235-B overlays on week
Limit, welds inside and outside skeleton, uses 60*40*2 square tube in the middle of door leaf, material is Q235-B, and surface 2mm Q235-B steel plate covers
Lid, door leaf flatness error is not more than 3mm, and perpendicularity is not more than 3mm.Door leaf can effectively shield ionizing radiation, fire prevention, every
Heat, shock resistance effect are preferable.
Electric-control system uses three-phase current, and rated voltage U=380V, rated frequency is 50Hz.
The reducing motor 6.1 of mechanism for opening/closing 6 drives drive link 6.2 to move, and owing to slideway 6.3 is fixed on door leaf top, passes
Lever 6.2 is fixed on slideway 6.3 by rotating shaft 6.5, and the drive link 6.2 of motion drives door leaf motion, it is achieved the keying of door.Reduce
Function is lost, and improves mechanical stability and reliability.
Described left-hand door fan 2, right door leaf 3 are respectively equipped with retaining mechanism 7 away from the side of hinge, as it is shown in figure 9, described locking
Mechanism 7 includes locking motor 7.1, upper locking drive link 7.3, lower locking drive link 7.7, upper bolt 7.5, lower bolt 7.6, visits
Door bolt shell 7.4 and lower bolt shell 7.8, the output shaft of described locking motor 7.1 is respectively by adapter sleeve 7.2 and upper locking transmission
Bar 7.3 and lower locking drive link 7.7 connect, described upper locking drive link 7.3 and the upper bolt being located in upper bolt shell 7.4
7.5 connect, and upper door frame 1.3 is provided with the latch plate 11 of visiting being used in combination with upper bolt 7.5, described lower locking drive link 7.7 with
The lower bolt 7.6 being located in lower bolt shell 7.8 connects, door opening bottom be provided with lower bolt 7.6 with the use of Xiamen latch plate
12;
Locking motor 7.1 starts, and in promotion, bolt 7.5, lower bolt 7.6 are respectively at upper bolt shell 7.4 and lower bolt shell 7.8
Inside move up or down, divide 7.6 not to be arranged at latch plate 11 of visiting, Xiamen latch plate 12 upper bolt 7.5, lower bolt, thus
Realize the locking of door leaf.
Described mechanism for opening/closing 6 is located at described biological shielding outer side of door, and described retaining mechanism 7 is located in described biological shielding door
Side, described unlatching limit switch 4 has two and is positioned at biological shielding outer side of door, and two unlatching limit switches 4 are respectively arranged on two
Door leaf top and nearly hinge 5 side, described cut out limit switch 9 has two and is positioned at inside biological shielding door, closes limit for two
Bit switch 9 is respectively arranged on two door leaf tops and nearly upper bolt shell 7.4 side;Described locking limit switch 8 has two and divides
It is not positioned on the downside of bolt shell 7.4.
The opening-closing process of the provided biological shielding door of the present embodiment is as follows:
Open the door: starting the start button of power driven system, retaining mechanism 7 works, touching locking limit switch 8, retaining mechanism 7 upper
Bolt 7.5, lower bolt 7.6 slip away latch plate 11, the Xiamen latch plate 12 of visiting, and release the locking to door leaf;The mechanism for opening/closing of right door leaf 3
6 work, drive link 6.2 moves, and opens right door leaf 3, and opening angle is about 95 °, until stopping after touching unlatching limit switch;
The mechanism for opening/closing 6 of left-hand door fan 2 works, and drive link 6.2 moves, and opens left-hand door fan 2, and opening angle is about 95 °, until touching out
Stopping after opening limit switch 4, now door leaf fully opens.
Closing the door: the X button of operation electric-control system, the mechanism for opening/closing 6 of left-hand door fan 2 works, the drive link of mechanism for opening/closing 6
6.2 pull left-hand door fan 2 closedown, until touching closedown limit switch 9, mechanism for opening/closing 6 quits work;Opening of the rightest door leaf 3
Closing mechanism 6 to work, drive link 6.2 pulls right door leaf 3 to close, until touching closedown limit switch 9, mechanism for opening/closing 6 stops work
Make;Retaining mechanism 7 works, and touching locking limit switch 8, upper bolt 7.5 moves up and snaps in latch plate 11 of visiting, lower bolt 7.5
Move down and snap in Xiamen latch plate 12, door leaf is locked, it is achieved action of closing the door.
Embodiment 2:
On the basis of embodiment 1, described reducing motor 6.1 and locking motor 7.1 are equiped with handwheel respectively.All switch gates move
Make manually controllable, rotate handwheel drive motor action and realize manually.
In order to eliminate door leaf and doorframe gap, fire, cigarette, heat is stoped outwards to be overflowed, described left-hand door fan 2 and the week of right door leaf 3
Limit and interface are embedded with at gap fireproofing glue strip respectively.Described fireproofing glue strip is ammonium sulfide adhesive tape.
For the ease of upset and the lifting of door leaf, described left-hand door fan 2, right door leaf 3 top are respectively equipped with two hangers 10.
Described left-hand door fans the gap≤5mm inside 2, inside right door leaf 3 respectively and between left-hand door frame 1.1, right doorframe 1.2.
Door leaf size exceedes hole will effectively reduce the radiation at gap.
It addition, in order to prevent linear x radiation x, as it is shown in figure 5, in the interface of left-hand door fan 2 and right door leaf 3, seam is
Stepped groove and tognue type.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, all
It is within design same or analogous with the present invention belongs to protection scope of the present invention.
Claims (7)
1. a biological shielding door, including electric-control system and be fixed on the doorframe at body of wall door opening, described doorframe include left-hand door frame,
Right doorframe and upper door frame, described left-hand door frame, right doorframe side respectively by hinge have left-hand door fan and right door leaf, its feature exists
In: the mechanism for opening/closing, retaining mechanism, the unlatching limit switch that also include electrically connecting with electric-control system respectively, close limit switch and
Locking limit switch;Described mechanism for opening/closing has two and is respectively arranged on left-hand door fan and right door leaf, and described mechanism for opening/closing is by slowing down
Motor, drive link, slideway, rotating shaft and rolling bearing composition, one end of described drive link connects with the output shaft transmission of reducing motor
Connecing, the other end is connected in slideway by rotating shaft, and rotating shaft is provided with rolling bearing, and described reducing motor is fixed on upper door frame,
Described slideway is horizontally placed on left-hand door fan or right door leaf top;
Described left-hand door fan, right door leaf be respectively equipped with retaining mechanism away from the side of hinge, described retaining mechanism include locking motor,
Upper locking drive link, lower locking drive link, upper bolt, lower bolt, upper bolt shell and lower bolt shell, described locking motor
Output shaft is connected with upper locking drive link and lower locking drive link by adapter sleeve respectively, described upper locking drive link be located at
Upper bolt in bolt shell connects, and upper door frame is provided with the latch plate of visiting being used in combination with upper bolt, described lower locking transmission
Bar is connected with the lower bolt being located in lower bolt shell, door opening bottom be provided with lower bolt with the use of Xiamen latch plate;
Described mechanism for opening/closing is located at described biological shielding outer side of door, and described retaining mechanism is located at inside described biological shielding door, institute
Stating unlatching limit switch have two and be positioned at biological shielding outer side of door, two unlatching limit switches are respectively arranged on two door leaf tops
And nearly hinge side, described cut out limit switch has two and is positioned at inside biological shielding door, and two cut out limit switches are respectively
It is located at two door leaf tops and nearly upper bolt shell side;Described locking limit switch has two and lays respectively at bolt shell
Downside.
2. a kind of biological shielding door as claimed in claim 1, it is characterised in that: described reducing motor and locking motor fill respectively
It is provided with handwheel.
3. biological shielding door as claimed in claim 1 a kind of, it is characterised in that: described left-hand door fan and the periphery of right door leaf and
Interface is embedded with at gap fireproofing glue strip respectively.
4. a kind of biological shielding door as claimed in claim 3, it is characterised in that: described fireproofing glue strip is ammonium sulfide adhesive tape.
5. a kind of biological shielding door as claimed in claim 1, it is characterised in that: described left-hand door fan, right door leaf top set respectively
There are two hangers.
6. a kind of biological shielding door as claimed in claim 1, it is characterised in that: inside described left-hand door fan, divide inside right door leaf
Gap≤5mm not and between left-hand door frame, right doorframe.
7. a kind of biological shielding door as claimed in claim 6, it is characterised in that: the interface of described left-hand door fan and right door leaf stitches
For stepped groove and tognue type.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610757081.9A CN106193956A (en) | 2016-08-30 | 2016-08-30 | A kind of biological shielding door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610757081.9A CN106193956A (en) | 2016-08-30 | 2016-08-30 | A kind of biological shielding door |
Publications (1)
Publication Number | Publication Date |
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CN106193956A true CN106193956A (en) | 2016-12-07 |
Family
ID=58088775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610757081.9A Pending CN106193956A (en) | 2016-08-30 | 2016-08-30 | A kind of biological shielding door |
Country Status (1)
Country | Link |
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CN (1) | CN106193956A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106639818A (en) * | 2016-12-16 | 2017-05-10 | 江苏金秋竹集团有限公司 | Biological shielded gate |
CN113671884A (en) * | 2021-08-25 | 2021-11-19 | 杭州德泰人防设备有限公司 | Electric control system for controlling special door body to be opened and closed stably |
CN116034892A (en) * | 2023-04-03 | 2023-05-02 | 北京先通国际医药科技股份有限公司 | Radiation-proof living animal storage cabinet and application thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2996322A (en) * | 1958-03-06 | 1961-08-15 | Meilink Steel Safe Company | Cabinet door bolt locking device |
CN2313905Y (en) * | 1997-07-14 | 1999-04-14 | 万玉龙 | Vertically middle-opening automatic door of elevator for goods |
CN202596506U (en) * | 2012-04-24 | 2012-12-12 | 中国核工业华兴建设有限公司 | Fire-proof biological shield door |
US8407937B2 (en) * | 2009-10-22 | 2013-04-02 | Yale Security Inc. | Door operator |
CN103510816A (en) * | 2013-10-11 | 2014-01-15 | 宜兴市万向防火门有限公司 | Nuclear power door |
CN206000407U (en) * | 2016-08-30 | 2017-03-08 | 江苏金秋竹集团有限公司 | A kind of biological shielding door |
-
2016
- 2016-08-30 CN CN201610757081.9A patent/CN106193956A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2996322A (en) * | 1958-03-06 | 1961-08-15 | Meilink Steel Safe Company | Cabinet door bolt locking device |
CN2313905Y (en) * | 1997-07-14 | 1999-04-14 | 万玉龙 | Vertically middle-opening automatic door of elevator for goods |
US8407937B2 (en) * | 2009-10-22 | 2013-04-02 | Yale Security Inc. | Door operator |
CN202596506U (en) * | 2012-04-24 | 2012-12-12 | 中国核工业华兴建设有限公司 | Fire-proof biological shield door |
CN103510816A (en) * | 2013-10-11 | 2014-01-15 | 宜兴市万向防火门有限公司 | Nuclear power door |
CN206000407U (en) * | 2016-08-30 | 2017-03-08 | 江苏金秋竹集团有限公司 | A kind of biological shielding door |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106639818A (en) * | 2016-12-16 | 2017-05-10 | 江苏金秋竹集团有限公司 | Biological shielded gate |
CN106639818B (en) * | 2016-12-16 | 2018-06-26 | 江苏金秋竹集团有限公司 | Biological shielding door |
CN113671884A (en) * | 2021-08-25 | 2021-11-19 | 杭州德泰人防设备有限公司 | Electric control system for controlling special door body to be opened and closed stably |
CN116034892A (en) * | 2023-04-03 | 2023-05-02 | 北京先通国际医药科技股份有限公司 | Radiation-proof living animal storage cabinet and application thereof |
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Application publication date: 20161207 |
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