CN102903410B - Heavy-water spent fuel dry type storage screen transportation container - Google Patents
Heavy-water spent fuel dry type storage screen transportation container Download PDFInfo
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- CN102903410B CN102903410B CN201110214867.3A CN201110214867A CN102903410B CN 102903410 B CN102903410 B CN 102903410B CN 201110214867 A CN201110214867 A CN 201110214867A CN 102903410 B CN102903410 B CN 102903410B
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Abstract
The invention belongs to heavy water reactor spent fuel dry-type storage technical field, be specifically related to a kind of heavy-water spent fuel dry type storage screen transportation container.The two ends that this equipment hangs yoke assembly connect with the relative both sides of shielding cylinder respectively; Electric Chain Blocks is arranged on the lower end, middle part of hanging yoke assembly, and its loop chain is connected with one end of gripping apparatus head adapter, and the other end of gripping apparatus head adapter is connected with gripping apparatus head, and gripping apparatus head adapter and gripping apparatus head are positioned at shielding cylinder; The side of shielding cylinder bottom has the translation gate slot of rectangle, the left and right sides of translation gate slot is provided with track, track extended structure is had in the outside of shielding cylinder, article two, track is from shielding cylinder laid inside to track extended structure, translation door is arranged between two tracks, translation door driving mechanism is arranged on the rear end of track extended structure, and under its effect, translation door can move between two tracks, and can enter in the translation gate slot of shielding cylinder.The safety and reliability that this equipment runs is all stronger.
Description
Technical field
The invention belongs to heavy water reactor spent fuel dry-type storage technical field, be specifically related to a kind of heavy-water spent fuel dry type storage screen transportation container.
Background technology
Along with the operation of heavy water reactor, a large amount of spentnuclear fuels can be produced.The spentnuclear fuel that heavy water reactor produces, leaves in spentnuclear fuel pond after discharging.But spentnuclear fuel pond can be filled eventually, therefore must solve the problem of outlet of spentnuclear fuel, otherwise the normal operation of nuclear power plant can be badly influenced.
At present, the way solving spentnuclear fuel outlet is in the world the method adopting heavy water reactor spentnuclear fuel interim dry storage in nuclear power plant, namely builds dry storage module for heavy water reactor irradiated fuel.This reservoir module outside is the reinforced concrete structure of rectangle, is provided with 40 storage tubes in each module, and arrange arrangement by 4 row 10, each storage tube can deposit 10 spentnuclear fuel baskets, and each spentnuclear fuel basket is equipped with 60 spentnuclear fuel clusters.At spentnuclear fuel basket from shielding work box to the In transit of module storage area, shielded coffin is for providing the shielding to spentnuclear fuel basket.
Mainly there is following shortcoming in existing shielded coffin: the less stable of (1) translation door driving mechanism; (2) centering of gripping apparatus head is poor; (3) security of equipment operation is poor; (4) equipment reliability of operation is poor.
Summary of the invention
The object of the present invention is to provide a kind of heavy-water spent fuel dry type storage screen transportation container, to guarantee under the prerequisite meeting its function of shielding, overcome the above-mentioned shortcoming that existing equipment exists.
For achieving the above object, the technical solution used in the present invention is as follows: a kind of heavy-water spent fuel dry type storage screen transportation container, and this device comprises shielding cylinder, hangs yoke assembly, Electric Chain Blocks, translation door driving mechanism and translation door; The described yoke assembly that hangs is connected to form by the upper end of the crossbeam of the level joint pin vertical with two that are positioned at crossbeam two ends, and the lower end of two joint pins connects with the relative both sides of shielding cylinder respectively; Electric Chain Blocks is arranged on the lower end, middle part of crossbeam, and its loop chain is connected with one end of gripping apparatus head adapter, and the other end of gripping apparatus head adapter is connected with gripping apparatus head, and gripping apparatus head adapter and gripping apparatus head are positioned at shielding cylinder; The side of shielding cylinder bottom has the translation gate slot of rectangle, the left and right sides of translation gate slot is provided with track, track extended structure is had in the outside of shielding cylinder, article two, track is from shielding cylinder laid inside to track extended structure, translation door is arranged between two tracks, translation door driving mechanism is arranged on the rear end of track extended structure, and under its effect, translation door can move between two tracks, and can enter in the translation gate slot of shielding cylinder.
The lower end of described shielding cylinder is foursquare base, above connects a columniform cylindrical shell, its entirety by inside and outside two-layered steel plates and in the middle of fill with lead and form, it is inner forms the cylindrical cavity that can hold a spentnuclear fuel basket; The neutron shield plate of Boron-containing-PE is housed at the outside surface of shielding cylinder; The upper end of cylindrical shell is provided with flat columniform top cover, top cover has through hole, the loop chain on the gripping apparatus head adapter top be connected with gripping apparatus head extend in shielding cylinder by this through hole; Top cover is provided with proximity switch A, as the signaling switch that puts in place of spentnuclear fuel basket; In top cover, frizzen is installed, to coordinate with gripping apparatus head adapter, realizes the limit function of cable to this shielded coffin and tracheae; Be separately installed with two pieces in the relative both sides of cylindrical shell and vertically relative hang yoke web joint, the lower end of hanging two joint pins of yoke assembly is connected to that two pieces of the relative both sides of cylindrical shell are vertical relative to be hung between yoke web joint; Cylindrical shell is evenly equipped with several shackles; Cylindrical shell is also provided with some angle steel.
The translation gate slot of rectangle is had in the side of described base; On base, and the top being positioned at translation gate slot is provided with proximity switch B, as the signaling switch that puts in place that translation door is closed; On base, and the side being positioned at translation gate slot is provided with translation door lock, for being locked when translation door opens or closes.
The bottom of described gripping apparatus head adapter is cylindrical, and columniform top is disk, and disk diameter is greater than columniform diameter, disk has three vertical through holes, passes for two tracheaes and a cable; One end of gripping apparatus head adapter disk is connected with the loop chain of Electric Chain Blocks, and columniform one end is connected with gripping apparatus head; When gripping apparatus head adapter and gripping apparatus head move upward, trigger the frizzen installed in the top cover of shielding cylinder, frizzen is by jack-up, the proximity switch A be arranged on the top cover of shielding cylinder is triggered, Electric Chain Blocks stops action, thus realizes the cable of this shielded coffin and the limit function of tracheae.
The described crossbeam hanging yoke assembly consists of pinned connection two blocks of vertical steel plates, two block plates are welded with respectively at the middle part of crossbeam two block plate, lifting is sold between two block plates, the top of lifting pin is provided with a hand-rail type screw drive mechanism, by this driving mechanism, the position of lifting pin can be moved, so that the suspension hook of crane puts down and centering, and then make lifting pin homing by this driving mechanism; Two center of gravity regulating blocks are had respectively by being bolted on two block plates between two block plates, and adjustment pad is provided with between center of gravity regulating block and steel plate, for adjusting the position of center of gravity regulating block, when making the suspension hook lifting of crane, equipment can keep balance.
In described one end of hanging the crossbeam of yoke assembly, and between its two block plate, tracheae angle sheave I is installed; At the other end of crossbeam, and between its two block plate, cable angle sheave I is installed; Two joint pin inside have rectangular channel along axis, in the upper end of the joint pin being provided with tracheae angle sheave I side, tracheae fixed pulley group is installed, be provided with tracheae running block in the rectangular channel of this joint pin inside, the inside middle portion of this joint pin outside surface is provided with tracheae angle sheave II; In the upper end of the joint pin being provided with cable angle sheave I side, cable fixed pulley group is installed, cable running block is installed in the rectangular channel of this joint pin inside, the inside middle portion of this joint pin outside surface is provided with cable angle sheave II, and in the side relative with cable angle sheave II, electric control box being installed, the various cable needed for shielded coffin runs and the interface of tracheae, power supply and source of the gas and shielded coffin are all installed in electric control box.
Described tracheae and the arrangement of cable as follows: two tracheaes are drawn from electric control box, successively through tracheae running block, tracheae fixed pulley group, tracheae angle sheave I and tracheae angle sheave II, then pass from gripping apparatus head adapter; A cable is drawn from electric control box, successively through cable running block, cable fixed pulley group, cable angle sheave I and cable angle sheave II, then passes from gripping apparatus head adapter; After two tracheaes and a cable pass from gripping apparatus head adapter, be all connected with gripping apparatus head.
Described Electric Chain Blocks is provided with and highly indicates control module, control module is highly indicated to comprise flip flop equipment and Displaying Meter, wherein flip flop equipment is arranged on Electric Chain Blocks, for gathering the altitude signal of spentnuclear fuel basket, Displaying Meter is arranged in electric control box, for showing the height of spentnuclear fuel basket; Load transducer and overweight protecting control module are also installed above Electric Chain Blocks; load transducer gathers the weight signal of spentnuclear fuel basket lifting process; judge after overweight protecting control module obtains this weight signal; if weight signal is abnormal, then controls Electric Chain Blocks and stop action.
Described translation door is that outer steel intralamellar part filling lead is made, and its left and right sides is provided with rail wheel; Described translation door driving mechanism comprises motor, bearing and leading screw, and bearing is arranged on the rear end of track extended structure, and motor is arranged on bearing, driven by motor guide screw movement, and leading screw drives translation door motion; In the rear end of track extended structure, proximity switch C is also installed, as the signal that puts in place that translation door is opened.
Above described track extended structure, be provided with the crane span structure of steel, the main body of crane span structure is by a platform and be positioned at the guardrail that two rows above platform be arranged in parallel and form; One end of platform is connected on shielding cylinder, between two row's guardrails, be provided with protective door; People's Bank of China's ladder is respectively arranged with in the both sides of platform lower end; The Bolted angle connection of crane span structure and shielding cylinder supports; Track extended structure is also provided with some connecting links, and its other end and shielding cylinder are bolted.
Beneficial effect acquired by the present invention is as follows: this heavy-water spent fuel dry type storage screen transportation container is being guaranteed under the prerequisite meeting its function of shielding, simplify design proposal, reduce manufacture difficulty and manufacturing cost, decrease the radiation dose suffered by operating personnel, the stability that the equipment that simultaneously improves runs, reliability and security.Specifically comprise following several aspect:
(1) for the shortcoming of the translation door driving mechanism less stable of former shielded coffin, this shielded coffin has done following improvement:
The translation door driving mechanism of this shielded coffin all has supporting at two ends, effectively ensure that and the stability that equipment runs simplify the design of its internal mechanism simultaneously, make compact conformation effective, reduce difficulty and the cost of manufacture, improve the safety and reliability that equipment runs;
(2) for the shortcoming that the gripping apparatus head centering of former shielded coffin is poor, this shielded coffin has done following improvement:
The mechanism that this shielded coffin adopts fixed pulley group and running block to coordinate, its power applied cable and tracheae is constant force, the length can not released because of cable and tracheae and changing, the Tensity size that cable and tracheae are subject to simultaneously adjusts balance by counterweight, thus substantially increase the accuracy of alignment of gripping apparatus head, ensure that shielded coffin can return in storage tube and get spentnuclear fuel basket; Meanwhile, due to the multiple proportion that the displacement of running block becomes to fix with the displacement of gripping apparatus head, this mechanism has the function of mechanical type gripping apparatus grease head highness instruction concurrently, for operating personnel provide reliable operating basis, improves the security that equipment runs;
The gripping apparatus head adapter of this shielded coffin adds the limit function to tracheae and cable, the cable between gripping apparatus head adapter and gripping apparatus head and tracheae is made to keep relaxed state, thus ensure gripping apparatus head not by the External Force Acting of the gentle pipe of cable, only keep plumbness under gravity, ensure that the centering of gripping apparatus head, improve the reliability of equipment; And gripping apparatus head adapter has the function of spentnuclear fuel basket upper limit position switch trigger concurrently, spentnuclear fuel basket then can be avoided to rush to summit the generation of accident;
(3) for the shortcoming that the equipment safety in operation of former shielded coffin is poor, this shielded coffin has done following improvement:
The yoke assembly that hangs of this shielded coffin adopts the position of adjustment pad counterweight heart regulating block to adjust, and when making the suspension hook lifting of crane, equipment can keep balance; Add a hand-rail type screw drive mechanism at the lifting pin top of hanging yoke assembly simultaneously, by this driving mechanism, the position of mobile lifting pin, so that suspension hook puts down and centering, and then make lifting pin homing by this driving mechanism, improve the security in suspension hook installation process, alleviate the labour intensity of operating personnel, reduce the radiation dose suffered by operating personnel simultaneously;
This shielded coffin adds the height instruction control module in spentnuclear fuel basket lifting process, can be judged the run location of spentnuclear fuel basket, to operate by this control module; This control module avoids the risk that former shielded coffin exists, and improves equipment reliability of operation and security largely;
This shielded coffin adds overweight protecting control module, and it coordinates jointly with load transducer, to prevent Electric Chain Blocks from transshipping the generation of the spentnuclear fuel basket fallen accident caused, improves the security that equipment runs;
(4) for the shortcoming that the equipment operational reliability of former shielded coffin is poor, this shielded coffin has done following improvement:
The translation door limit switch of this shielded coffin adopts induction type proximity switch, and its precision and reliability improve a lot, and simplify design, reduce manufacturing cost while improve equipment reliability of operation;
(5) this shielded coffin has made simplified design to neutron barricade on the basis meeting radiation shielding requirements, reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is heavy-water spent fuel dry type storage screen transportation container structural drawing of the present invention;
Fig. 2 is the shielding cylinder structural drawing of heavy-water spent fuel dry type storage screen transportation container of the present invention;
Fig. 3 be heavy-water spent fuel dry type storage screen transportation container of the present invention hang yoke assembly structural drawing;
Fig. 4 is translation door and the translation door driving mechanism structure figure of heavy-water spent fuel dry type storage screen transportation container of the present invention;
Fig. 5 is the portal structure figure of heavy-water spent fuel dry type storage screen transportation container of the present invention.
In figure: 1, shielding cylinder; 2, yoke assembly is hung; 3, Electric Chain Blocks; 4, crane span structure; 5, translation door driving mechanism; 6, translation door; 11, proximity switch A; 12, top cover; 13, neutron shield plate; 14, cylindrical shell; 15, proximity switch B; 16, yoke web joint is hung; 17, translation door lock; 18, base; 19, angle steel; 110, translation gate slot; 111, shackle; 21, tracheae angle sheave I; 22, tracheae fixed pulley group; 23, tracheae running block; 24, tracheae angle sheave II; 25, gripping apparatus head adapter; 26, hand-rail type screw drive mechanism; 27, cable angle sheave I; 28, cable fixed pulley group; 29, load transducer; 210, electric control box; 211, highly control module is indicated; 212, cable angle sheave II; 213, crossbeam; 214, joint pin; 215, overweight protecting control module; 216, steel plate; 31, rail wheel; 32, track; 33, motor; 34, bearing; 35, proximity switch C; 36, track extended structure; 41, platform; 42, guardrail; 43, protective door; 44, People's Bank of China's ladder; 45, connecting link.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, heavy-water spent fuel dry type storage screen transportation container of the present invention comprise shielding cylinder 1, hang yoke assembly 2, Electric Chain Blocks 3, crane span structure 4, translation door driving mechanism 5 and translation door 6; The described yoke assembly 2 that hangs is connected to form by the upper end of the bearing pin joint pin 214 vertical with two that are positioned at crossbeam two ends by the crossbeam 213 of a level, and the lower end of two joint pins 214 connects with the relative both sides of shielding cylinder 1 respectively; Electric Chain Blocks 3 is arranged on the lower end, middle part of the crossbeam 213 hanging yoke assembly 2; The side of shielding cylinder 1 bottom has the translation gate slot 110 of rectangle, the left and right sides of translation gate slot 110 is provided with track 32, track extended structure 36 is had in the outside of shielding cylinder 1, article two, track 32 is from shielding cylinder 1 laid inside to track extended structure 36, translation door 6 is arranged between two tracks, translation door driving mechanism 5 is arranged on the rear end of track extended structure 36, and under its effect, translation door 6 can move between two tracks, and can enter in the translation gate slot 1 10 of shielding cylinder 1; Crane span structure 4 is provided with above track extended structure 36.
As shown in Figure 2, the lower end of described shielding cylinder 1 is foursquare base 18, above connects a columniform cylindrical shell 14, its entirety by inside and outside two-layered steel plates and in the middle of fill with lead and form, it is inner forms the cylindrical cavity that can hold a spentnuclear fuel basket; The outside surface of shielding cylinder 1 is equipped with the neutron shield plate 13 of Boron-containing-PE, to provide neutron shield; The upper end of cylindrical shell 14 is provided with flat columniform top cover 12, and its interior shape and gripping apparatus head match, and top cover 12 has through hole, and the loop chain on gripping apparatus head adapter 25 top be connected with gripping apparatus head extend into the inside of shielding cylinder 1 by this through hole; In top cover 12, frizzen is installed, to coordinate with gripping apparatus head adapter 25, realizes the limit function to cable and tracheae; Top cover 12 is also provided with proximity switch A11, as the signaling switch that puts in place of spentnuclear fuel basket; Cylindrical shell 14 is evenly equipped with several shackles 111, for this shielded coffin being fixed on trailer in transportation; Cylindrical shell 14 is also provided with some angle steel 19, realizes the support to crane span structure 4; Be separately installed with two pieces in the relative both sides of cylindrical shell 14 and vertically relative hang yoke web joint 16, the lower end of hanging two joint pins 214 of yoke assembly 2 is connected to that two pieces of the relative both sides of cylindrical shell 14 are vertical relative to be hung between yoke web joint 16; Have the translation gate slot 110 of rectangle in the side of base 18, the left and right sides of translation gate slot 110 is provided with track 32, and on base 18, and the top being positioned at translation gate slot 110 is provided with proximity switch B15, as the signaling switch that puts in place that translation door 6 is closed; On base 18, and the side being positioned at translation gate slot 110 is provided with translation door lock 17, and for entering in translation gate slot 1 10 when translation door 6, namely translation door 6 is closed or when translation door 6 leaves translation gate slot 1 10, is locked when namely translation door 6 is opened.
As shown in Figure 3, hang yoke assembly 2 described in be connected to form by the upper end of the bearing pin joint pin 214 vertical with two that are positioned at crossbeam two ends by the crossbeam 213 of a level; The lower end of two joint pins 214 is connected to that two pieces of the relative both sides of cylindrical shell 14 are vertical relative to be hung between yoke web joint 16; Crossbeam 213 consists of pinned connection two blocks of vertical steel plates, two block plates 216 are welded with respectively at the middle part of crossbeam 213 liang of block plates, lifting is sold between two block plates 216, the top of lifting pin is provided with a hand-rail type screw drive mechanism 26, by this driving mechanism, the position of lifting pin can be moved, so that the suspension hook of crane puts down and centering, and then make lifting pin homing by this driving mechanism; Two center of gravity regulating blocks are had respectively by being bolted on two block plates 216 between two block plates 216, and adjustment pad is provided with between center of gravity regulating block and steel plate 216, for adjusting the position of center of gravity regulating block, when making the suspension hook lifting of crane, equipment can keep balance; In one end of crossbeam 213, and between its two block plate, tracheae angle sheave I21 is installed; At the other end of crossbeam 213, and between its two block plate, cable angle sheave I27 is installed; Two joint pin 214 inside have rectangular channel along axis, by bearing pin, tracheae fixed pulley group 22 is installed in the upper end of the joint pin 214 being provided with tracheae angle sheave I21 side, be provided with tracheae running block 23 in the rectangular channel of this joint pin 214 inside, the inside middle portion of this joint pin 214 outside surface is provided with tracheae angle sheave II24; By bearing pin, cable fixed pulley group 28 is installed in the upper end of the joint pin 214 being provided with cable angle sheave I27 side, in the rectangular channel of this joint pin 214 inside, cable running block is installed, the inside middle portion of this joint pin 214 outside surface is provided with cable angle sheave II212, and in the side relative with cable angle sheave II212, electric control box 210 being installed, the various cable needed for shielded coffin runs and the interface etc. of tracheae, power supply and source of the gas and shielded coffin are all installed in electric control box 210; And tracheae angle sheave II24 is relative with cable angle sheave II212; Electric Chain Blocks 3 is arranged on the lower end, middle part of crossbeam 213, it is provided with and highly indicates control module 211, control module 211 is highly indicated to comprise flip flop equipment and Displaying Meter, wherein flip flop equipment is arranged on Electric Chain Blocks 3, for gathering the altitude signal of spentnuclear fuel basket, Displaying Meter is arranged in electric control box 210, for showing the height of spentnuclear fuel basket; Load transducer 29 and overweight protecting control module 215 are also installed above Electric Chain Blocks 3, load transducer 29 gathers the weight signal of spentnuclear fuel basket lifting process, judge after overweight protecting control module 215 obtains this weight signal, if weight signal is abnormal, then controls Electric Chain Blocks 3 and stop action; The bottom of gripping apparatus head adapter 25 is cylindrical, columniform top is disk, and disk diameter is greater than columniform diameter, disk has three vertical through holes, pass for two tracheaes (draft tube and escape pipe) and a cable, one end of gripping apparatus head adapter 25 disk is connected with the loop chain of Electric Chain Blocks 3, and columniform one end and gripping apparatus head are by pinned connection, and gripping apparatus head adapter 25 and gripping apparatus head extend in shielding cylinder 1 from the through hole the top cover 12 of shielding cylinder 1; Wherein the arrangement of two tracheaes and a cable is as follows: two tracheaes are drawn from electric control box 210, successively through tracheae running block 23, tracheae fixed pulley group 22, tracheae angle sheave I21 and tracheae angle sheave II24, then pass from two vertical through holes gripping apparatus head adapter 25 disk; A cable is drawn from electric control box 210, successively through cable running block, cable fixed pulley group 28, cable angle sheave I27 and cable angle sheave II212, then passes from another the vertical through hole gripping apparatus head adapter 25 disk; After two tracheaes and a cable pass from gripping apparatus head adapter 25, be all connected with gripping apparatus head; When gripping apparatus head adapter 25 moves upward with gripping apparatus head, trigger the frizzen installed in the top cover 12 of shielding cylinder 1, frizzen is by jack-up, the proximity switch A11 be arranged on the top cover 12 of shielding cylinder 1 is triggered, Electric Chain Blocks 3 stops action, thus realizes the limit function to tracheae and cable.
As shown in Figure 4, described translation door 6 is filled with lead for outer steel intralamellar part and is made, its left and right sides is provided with rail wheel 31, translation door driving mechanism 5 is arranged on the rear end of track extended structure 36, the track 32 that translation door 6 can be installed along translation gate slot 110 both sides of shielding cylinder 1 under its effect moves on track extended structure 36, and can enter in the translation gate slot 110 of shielding cylinder 1; Translation door driving mechanism 5 comprises motor 33, bearing 34 and leading screw, and bearing 34 is arranged on the rear end of track extended structure 36, and motor 33 is arranged on bearing 34, and motor 33 drives guide screw movement, and leading screw drives translation door 6 to move; In the rear end of track extended structure 36, proximity switch C35 is also installed, as the signal that puts in place that translation door 6 is opened.
As shown in Figure 5, the crane span structure 4 of described steel is positioned at the top of track extended structure 36, by a platform 41 be positioned at the guardrail 42 that two rows above platform 41 be arranged in parallel and form, one end of platform 41 is connected on the cylindrical shell 14 of shielding cylinder 1, between two row's guardrails 42, protective door 43 is installed, is respectively arranged with People's Bank of China's ladder 44 in the both sides of platform 41 lower end; Crane span structure 4 is connected with the angle steel 19 of shielding cylinder 1 and supports; Track extended structure 36 is also provided with some connecting links 45, and its other end and shielding cylinder 1 are bolted; Crane span structure 4 to provide from pond workbench to the passage of another side for operating personnel.
The workflow of this shielded coffin is as follows:
Before spentnuclear fuel cluster is transported from spentnuclear fuel pond, spentnuclear fuel cluster first shifts out from tumbler, and put into spentnuclear fuel basket, spentnuclear fuel basket is directly hung in shielding work box by the skewed slot of shielding, and shielded coffin is positioned on the opening at shielding work box top.When after the oven dry of spentnuclear fuel basket also seal welding, the translation door 6 of shielded coffin is opened completely, and stays open state until spentnuclear fuel basket hangs in the shielding cylinder 1 of shielded coffin by hanging yoke assembly 2 dress.
Once spentnuclear fuel basket is promoted in the shielding cylinder 1 of shielded coffin completely, the translation door 6 of shielded coffin is closed and is pinned by translation door lock 17, and then spentnuclear fuel basket is lowered and is shelved on translation door 6.In this operating process, the gripping apparatus head hanging yoke assembly 2 remains the connection with spentnuclear fuel basket.Shielded coffin is hung oneself away from shielding work box, and is put on trailer fixing by the crane then extended in factory building, is then transported to module storage area.
At module storage area, guide piece is in place at dry storage module for heavy water reactor irradiated fuel top; Trailer is positioned by the module of needs operation; Shielded coffin is winched to module top from trailer by trestle crane main hook, and moves in guide piece by shielded coffin, and plug is loaded in secondary hook of crane lifting, and 2 suspension hooks move simultaneously.When shielded coffin moves in place, load plug and be moved to another side; Then shielded coffin declines and enters on the guide piece that is fixed on storage tube.
Spentnuclear fuel basket is removed the lock-out state of translation door lock 17, then being opened translation door 6 and relock translation door lock 17, then being hung at leisure in storage tube by spentnuclear fuel basket by hanging yoke assembly 2 after promoting and leaving the translation door 6 of shielded coffin; When spentnuclear fuel basket is in place, the gripping apparatus head hanging yoke assembly 2 unclamps spentnuclear fuel basket, and turns back in shielded coffin; Now remove the lock-out state of translation door lock 17, then open translation door 6 and relock translation door lock 17; Shielded coffin is transported back the process of shielding work box just in time in contrast.Repeat above operating process each spentnuclear fuel basket to be loaded in the storage tube of dry storage module for heavy water reactor irradiated fuel, till storage tube is filled.
Claims (10)
1. a heavy-water spent fuel dry type storage screen transportation container, is characterized in that: this device comprises shielding cylinder (1), hangs yoke assembly (2), Electric Chain Blocks (3), translation door driving mechanism (5) and translation door (6), the described yoke assembly (2) that hangs is connected to form by the upper end of the crossbeam (213) of the level joint pin (214) vertical with two that are positioned at crossbeam (213) two ends, and the lower end of two joint pins (214) connects with the relative both sides of shielding cylinder (1) respectively, Electric Chain Blocks (3) is arranged on the lower end, middle part of crossbeam (213), its loop chain is connected with the one end of gripping apparatus head adapter (25), the other end of gripping apparatus head adapter (25) is connected with gripping apparatus head, and gripping apparatus head adapter (25) and gripping apparatus head are positioned at shielding cylinder (1), the side of shielding cylinder (1) bottom has the translation gate slot (110) of rectangle, the left and right sides of translation gate slot (110) is provided with track (32), track extended structure (36) is had in the outside of shielding cylinder (1), track (32) is from shielding cylinder (1) laid inside to track extended structure (36), translation door (6) is arranged between track (32) and track extended structure (36), translation door driving mechanism (5) is arranged on the rear end of track extended structure (36), under its effect, translation door (6) can move between track (32) and track extended structure (36), and can enter in the translation gate slot (110) of shielding cylinder (1).
2. heavy-water spent fuel dry type storage screen transportation container according to claim 1, it is characterized in that: the lower end of described shielding cylinder (1) is foursquare base (18), on connect a columniform cylindrical shell (14), its entirety by inside and outside two-layered steel plates and in the middle of fill with lead and form, it is inner forms the cylindrical cavity that can hold a spentnuclear fuel basket; The neutron shield plate (13) of Boron-containing-PE is housed at the outside surface of shielding cylinder (1); The upper end of cylindrical shell (14) is provided with flat columniform top cover (12), (12) have through hole to top cover, and the loop chain on gripping apparatus head adapter (25) top be connected with gripping apparatus head extend in shielding cylinder (1) by this through hole; Top cover (12) is provided with proximity switch A (11), as the signaling switch that puts in place of spentnuclear fuel basket; In top cover (12), frizzen is installed, to coordinate with gripping apparatus head adapter (25), realizes the limit function of cable to this shielded coffin and tracheae; Be separately installed with two pieces in the relative both sides of cylindrical shell (14) and vertically relative hang yoke web joint (16), the lower end of hanging two joint pins (214) of yoke assembly (2) is connected to that two pieces of the relative both sides of cylindrical shell (14) are vertical relative to be hung between yoke web joint (16); Cylindrical shell (14) is evenly equipped with several shackles (111); Cylindrical shell (14) is also provided with some angle steel (19).
3. heavy-water spent fuel dry type storage screen transportation container according to claim 2, is characterized in that: the translation gate slot (110) of described rectangle is arranged on the side of described base (18); On base (18), and the top being positioned at translation gate slot (110) is provided with proximity switch B (15), as the signaling switch that puts in place that translation door (6) is closed; On base (18), and the side being positioned at translation gate slot (110) is provided with translation door lock (17), for being locked when translation door (6) opens or closes.
4. heavy-water spent fuel dry type storage screen transportation container according to claim 2, it is characterized in that: the bottom of described gripping apparatus head adapter (25) is cylindrical, columniform top is disk, and disk diameter is greater than columniform diameter, disk has three vertical through holes, pass for two tracheaes and a cable; One end of gripping apparatus head adapter (25) disk is connected with the loop chain of Electric Chain Blocks (3), and columniform one end is connected with gripping apparatus head; When gripping apparatus head adapter (25) moves upward with gripping apparatus head, trigger the frizzen installed in the top cover (12) of shielding cylinder (1), frizzen is by jack-up, the proximity switch A (11) be arranged on the top cover (12) of shielding cylinder (1) is triggered, Electric Chain Blocks (3) stops action, thus realizes the cable of this shielded coffin and the limit function of tracheae.
5. heavy-water spent fuel dry type storage screen transportation container according to claim 1, it is characterized in that: the described crossbeam (213) hanging yoke assembly (2) consists of pinned connection two blocks of vertical steel plates, two block plates (216) are welded with respectively at the middle part of crossbeam (213) two block plate, lifting pin is through between the steel plate (216) of two block weldings on crossbeam (213), the top of lifting pin is provided with a hand-rail type screw drive mechanism (26), by this driving mechanism, the position of lifting pin can be moved, so that the suspension hook of crane puts down and centering, and then make lifting pin homing by this driving mechanism, two center of gravity regulating blocks are had respectively by being bolted on the steel plate (216) of two block weldings on crossbeam (213) between the steel plate (216) of two block weldings on crossbeam (213), and adjustment pad is provided with between center of gravity regulating block and the steel plate (216) being welded on crossbeam (213), for adjusting the position of center of gravity regulating block, when making the suspension hook lifting of crane, equipment can keep balance.
6. heavy-water spent fuel dry type storage screen transportation container according to claim 5, it is characterized in that: in one end of the described crossbeam (213) hanging yoke assembly (2), and between two block plates of crossbeam (213), tracheae angle sheave I (21) is installed, at the other end of crossbeam (213), and between two block plates of crossbeam (213), cable angle sheave I (27) is installed, two joint pin (214) inside have rectangular channel along axis, in the upper end of the joint pin (214) being provided with tracheae angle sheave I (21) side, tracheae fixed pulley group (22) is installed, be provided with tracheae running block (23) in the rectangular channel that this joint pin (214) is inner, the inside middle portion of this joint pin (214) outside surface is provided with tracheae angle sheave II (24), in the upper end of the joint pin (214) being provided with cable angle sheave I (27) side, cable fixed pulley group (28) is installed, in the rectangular channel that this joint pin (214) is inner, cable running block is installed, the inside middle portion of this joint pin (214) outside surface is provided with cable angle sheave II (212), and in the side relative with cable angle sheave II (212), electric control box (210) is installed, various cable needed for shielded coffin runs and tracheae, the interface of power supply and source of the gas and shielded coffin is all installed in electric control box (210).
7. heavy-water spent fuel dry type storage screen transportation container according to claim 6, it is characterized in that: described tracheae and the arrangement of cable as follows: two tracheaes are drawn from electric control box (210), successively through tracheae running block (23), tracheae fixed pulley group (22), tracheae angle sheave I (21) and tracheae angle sheave II (24), then pass from gripping apparatus head adapter (25); A cable is drawn from electric control box (210), successively through cable running block, cable fixed pulley group (28), cable angle sheave I (27) and cable angle sheave II (212), then pass from gripping apparatus head adapter (25); After two tracheaes and a cable pass from gripping apparatus head adapter (25), be all connected with gripping apparatus head.
8. heavy-water spent fuel dry type storage screen transportation container according to claim 1, it is characterized in that: be provided with on described Electric Chain Blocks (3) and highly indicate control module (211), control module (211) is highly indicated to comprise flip flop equipment and Displaying Meter, wherein flip flop equipment is arranged on Electric Chain Blocks (3), for gathering the altitude signal of spentnuclear fuel basket, Displaying Meter is arranged in electric control box (210), for showing the height of spentnuclear fuel basket; In Electric Chain Blocks (3) top, load transducer (29) and overweight protecting control module (215) are also installed; load transducer (29) gathers the weight signal of spentnuclear fuel basket lifting process; judge after overweight protecting control module (215) obtains this weight signal; if weight signal is abnormal, then controls Electric Chain Blocks (3) and stop action.
9. heavy-water spent fuel dry type storage screen transportation container according to claim 1, is characterized in that: described translation door (6) is filled with lead for outer steel intralamellar part and made, and its left and right sides is provided with rail wheel (31); Described translation door driving mechanism (5) comprises motor (33), bearing (34) and leading screw, bearing (34) is arranged on the rear end of track extended structure (36), motor (33) is arranged on bearing (34), motor (33) drives guide screw movement, and leading screw drives translation door (6) motion; In the rear end of track extended structure (36), proximity switch C (35) is also installed, as the signal that puts in place that translation door (6) is opened.
10. heavy-water spent fuel dry type storage screen transportation container according to claim 1, it is characterized in that: the crane span structure (4) being provided with steel in the top of described track extended structure (36), the guardrail (42) that the main body of crane span structure (4) is be arranged in parallel by a platform (41) and two rows that are positioned at platform (41) top forms; One end of platform (41) is connected on shielding cylinder (1), between two rows' guardrail (42), be provided with protective door (43); People's Bank of China's ladder (44) is respectively arranged with in the both sides of platform (41) lower end; Crane span structure (4) is connected with the angle steel (19) of shielding cylinder (1) and supports; Track extended structure (36) is also provided with some connecting links (45), and its other end and shielding cylinder (1) are bolted.
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| CN201110214867.3A CN102903410B (en) | 2011-07-29 | 2011-07-29 | Heavy-water spent fuel dry type storage screen transportation container |
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| CN201110214867.3A CN102903410B (en) | 2011-07-29 | 2011-07-29 | Heavy-water spent fuel dry type storage screen transportation container |
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| CN102903410B true CN102903410B (en) | 2015-08-26 |
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| CN104485144A (en) * | 2014-12-08 | 2015-04-01 | 中广核工程有限公司 | Shielding device for transferring radioactive waste bins of nuclear power plants |
| CN106504806B (en) * | 2016-12-29 | 2018-08-10 | 中广核研究院有限公司 | A kind of flexible drive and emergency trip device |
| CN108899105B (en) * | 2018-06-22 | 2021-12-17 | 中核核电运行管理有限公司 | Production method for heavy water reactor spent fuel dry storage |
| CN113118669B (en) * | 2019-12-30 | 2023-05-12 | 中核北方核燃料元件有限公司 | Rod bundle carrying clamp for picking up integrated end plate |
| CN111653374B (en) * | 2020-05-25 | 2024-08-09 | 中核核电运行管理有限公司 | Dry-type storage emergency grabbing tool for heavy water reactor spent fuel |
| CN112271009B (en) * | 2020-10-14 | 2023-07-07 | 中广核工程有限公司 | Protective base of dry spent fuel storage and transportation container |
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| CN1734682A (en) * | 2004-03-18 | 2006-02-15 | 霍尔泰克国际股份有限公司 | Systems and methods for storing high level radioactive waste |
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| CN202178075U (en) * | 2011-07-29 | 2012-03-28 | 上海核工程研究设计院 | Heavy-water spent fuel dry type storage screen transportation container |
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| JP3854417B2 (en) * | 1998-12-25 | 2006-12-06 | 株式会社神戸製鋼所 | Container for transport and storage of radioactive materials |
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| CN1734682A (en) * | 2004-03-18 | 2006-02-15 | 霍尔泰克国际股份有限公司 | Systems and methods for storing high level radioactive waste |
| CN101740147A (en) * | 2009-12-17 | 2010-06-16 | 清华大学 | Dry vertical shaft storage system for spent fuel of nuclear power station and storage method thereof |
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Inventor after: Min Peng Inventor after: Liu Gang Inventor after: Shao Jie Inventor after: Chen Yufan Inventor after: Yang Hongming Inventor after: Wang Zhonghui Inventor after: Song Dianzi Inventor after: Jiang Junjian Inventor after: Zhao Jun Inventor before: Min Peng Inventor before: Liu Gang Inventor before: Shao Jie Inventor before: Chen Yufan Inventor before: Yang Hongming Inventor before: Wang Zhonghui |
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Free format text: CORRECT: INVENTOR; FROM: MIN PENG LIU GANG SHAO JIE CHEN YUFAN YANG HONGMING WANG ZHONGHUI TO: MIN PENG LIU GANG SHAO JIE CHEN YUFAN YANG HONGMING WANG ZHONGHUI SONG DIANZI JIANG JUNJIAN ZHAO JUN |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Patentee after: THIRD QINSHAN NUCLEAR POWER Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Patentee before: THIRD QINSHAN NUCLEAR POWER Co.,Ltd. |