CN108974811B - Alpha waste transfer device between hot chamber and overhaul region - Google Patents
Alpha waste transfer device between hot chamber and overhaul region Download PDFInfo
- Publication number
- CN108974811B CN108974811B CN201810790856.1A CN201810790856A CN108974811B CN 108974811 B CN108974811 B CN 108974811B CN 201810790856 A CN201810790856 A CN 201810790856A CN 108974811 B CN108974811 B CN 108974811B
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- sliding bracket
- hot chamber
- channel
- wall
- penetrating pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F7/00—Shielded cells or rooms
- G21F7/005—Shielded passages through walls; Locks; Transferring devices between rooms
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to an alpha waste transfer device between a hot chamber and an overhaul region, which comprises a wall penetrating pipe and a sliding bracket mechanism, wherein two ends of the wall penetrating pipe respectively extend into the hot chamber and the overhaul region, and the sliding bracket mechanism can move in the wall penetrating pipe to transfer waste. The invention has the following beneficial effects: the alpha waste transfer device between the hot chamber and the overhaul region realizes the transfer-out of alpha waste under the condition that the source of the hot chamber is not removed through the wall-penetrating pipe and the sliding bracket mechanism, can realize alpha sealing and gamma shielding in the whole process during operation, and practically ensures the safety of operators and the peripheral environment. Based on the eccentric screw nut transmission principle, the transmission is stable, the structure is simple and ingenious, and the overhaul is convenient.
Description
Technical Field
The invention relates to the field of nuclear fuel post-treatment, in particular to an alpha waste transfer device between a hot chamber and a maintenance interval.
Background
In the nuclear chemical industry field, a plurality of alpha wastes are generated in a hot chamber, in the past engineering, bag sealing technology is mostly adopted when the alpha wastes are transferred out of the hot chamber, however, if the bag sealing technology is adopted, the source item of the hot chamber needs to be firstly withdrawn, the bag sealing operation can be carried out, and under some working conditions, the wastes are not allowed to be transferred out after the source item is removed every time.
In view of the above, the present invention provides a technical solution to comprehensively consider the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an alpha waste transfer device between a hot chamber and a maintenance interval, which can transfer alpha waste out under the condition that the source of the hot chamber is not removed.
The technical scheme of the invention is as follows:
the utility model provides a hot chamber and overhauls interval alpha waste transfer device, includes that both ends stretch into the wall pipe of hot chamber and maintenance district respectively and can be in the slip bracket mechanism that removes in order to transport the waste in the wall pipe.
Further, in the above α waste transfer device between the hot chamber and the overhaul region, the sliding bracket mechanism moves in the through-wall pipe through screw transmission.
Further, in the alpha waste transfer device between the hot chamber and the overhaul region, a motor connected with a lead screw is arranged in the overhaul region outside the hot chamber wall; the lead screw penetrates through the wall penetrating pipe and the sliding bracket mechanism; and the bottom of the sliding bracket mechanism is provided with a nut matched with the lead screw.
Further, in the above α waste transfer device between the hot chamber and the overhaul region, the sliding bracket mechanism includes a sliding bracket, a nut locking ring, and a temporary storage box; the sliding bracket is processed by a round shaft, a through hole is formed in the eccentric position of the lower part of the sliding bracket along the length direction of the sliding bracket, a nut is fixed at one end of the through hole through a nut locking ring, and a lead screw penetrates through the through hole and the nut, keeps a certain gap with the wall of the hole and is matched with the nut; the temporary storage box is arranged at the upper part of the sliding bracket.
Further, above-mentioned alpha waste transfer device between hot chamber and the maintenance interval, the sliding bracket lower part is provided with two at least square grooves, installs ball bearing in the groove.
Further, in the alpha waste transfer device between the hot chamber and the overhaul region, the wall penetrating pipe is provided with a feeding channel on one side of the hot chamber; the feeding channel comprises a first channel, a first sealing ring, a first handle and a first end cover; one end of the first channel is welded at an opening of the wall penetrating pipe in the hot chamber, and the other end of the first channel is bonded with a first sealing ring; the first end cap is rotatable to open/close the first passage; the first handle can press the first end cover on the first sealing ring.
Further, in the alpha waste transfer device between the hot chamber and the overhaul region, the through-wall pipe is provided with a discharge channel at one side of the overhaul region; the discharge channel comprises a second channel, a second sealing ring, a second handle, a second end cover and a bag sealing disc; one end of the second channel is welded at the opening of the through-wall pipe in the overhaul area, and the other end of the second channel is bonded with a second sealing ring; the second end cap is rotatable to open/close the second passage; the second handle can press the second end cover on the second sealing ring; and a bag sealing disc is welded on one circle of the outer side of the second channel.
Furthermore, in the alpha waste transfer device between the hot chamber and the overhaul region, the end face of the wall penetrating pipe on one side of the hot chamber and the wall body close to the inside of the hot chamber are internally provided with compensation shielding structures.
The invention has the following beneficial effects:
the alpha waste transfer device between the hot chamber and the overhaul region realizes the transfer-out of alpha waste under the condition that the source of the hot chamber is not removed through the wall-penetrating pipe and the sliding bracket mechanism, can realize alpha sealing and gamma shielding in the whole process during operation, and practically ensures the safety of operators and the peripheral environment. Based on the eccentric screw nut transmission principle, the transmission is stable, the structure is simple and ingenious, and the overhaul is convenient.
Drawings
Fig. 1 is a schematic structural view of an alpha waste transporter for hot rooms and service areas according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a sliding bracket mechanism according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view along direction AA in fig. 2.
Fig. 4 is a cross-sectional view in the BB direction in fig. 3.
Fig. 5 is a schematic view of the structure of the feed channel of the present invention (closed state).
Fig. 6 is a schematic structural view (open state) of the discharge passage of the present invention.
In the above drawings, 1, a through-wall pipe; 2. a motor; 3. a lead screw; 4. a bearing; 5. a bearing; 6. a sliding bracket mechanism; 7. a discharge channel; 8. a feed channel; 9. a compensation shielding structure; 61. a sliding bracket; 62. a nut; 63. a nut locking ring; 64. a ball bearing; 65. a temporary storage box; 71. a second channel; 72. a second seal ring; 73. a second handle; 74. a second end cap; 75. a bag sealing device; 81. a first channel; 82. a first seal ring; 83. a first handle; 84. a first end cap.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in figure 1, the invention provides an alpha waste transfer device between a hot chamber and a maintenance area, which comprises a through-wall pipe 1 with two ends respectively extending into the hot chamber and the maintenance area and a sliding bracket mechanism 6 capable of moving in the through-wall pipe 1 to transfer waste. The sliding bracket mechanism 6 moves in the wall penetrating pipe 1 through the transmission of the lead screw 3. A motor connected with the screw rod 3 is arranged in the overhaul area outside the hot chamber wall; the lead screw 3 penetrates through the wall penetrating pipe and the sliding bracket mechanism 6; and a nut 62 matched with the screw rod 3 is arranged at the bottom of the sliding bracket mechanism 6. The wall penetrating pipe 1 penetrates through a wall body of the hot chamber, a square hole is formed in the position, below the feeding channel 8 and the discharging channel 7, of the wall penetrating pipe 1, the motor 2 is located on one side of an overhaul area outside the hot chamber wall and is connected with the screw rod 3, the screw rod 3 penetrates through the wall penetrating pipe 1 and the sliding bracket mechanism 6, and two ends of the screw rod are respectively fixed to two ends of the wall penetrating pipe 1 and are installed on bearings (4 and 5) of corresponding bearing seats. And a compensation shielding structure 9 is arranged on the end surface of the wall penetrating pipe 1 at one side of the hot chamber and in the hot chamber close to the wall body.
As shown in fig. 2 to 4, the slide bracket mechanism 6 includes a slide bracket 61, a nut 62, a nut locking ring 63, a ball bearing 64, and a temporary storage box 65; the sliding bracket 61 is formed by processing a round shaft, a through hole is formed in the eccentric position of the lower part of the sliding bracket 61 along the length direction of the sliding bracket 61, a nut 62 is fixed at one end of the through hole through a nut locking ring 63, and the screw rod 3 passes through the through hole and the nut 62, keeps a certain gap with the hole wall and is matched with the nut 62; the temporary storage box 65 is provided at the upper portion of the slide bracket 61. The lower part of the sliding bracket 61 is provided with at least two square grooves, and ball bearings 64 are arranged in the grooves. In this embodiment, two square grooves are symmetrically arranged on the left and right sides of the through hole at the lower part of the sliding bracket 61, and 4 ball bearings 64 are fixed in the grooves. The temporary storage box 65 is opened on the side of the central maintenance area of the upper part of the sliding bracket 61.
As shown in fig. 5, the wall penetrating pipe 1 is provided with a feeding channel 8 at one side of the hot chamber; the feed channel 8 comprises a first channel 81, a first sealing ring 82, a first handle 83 and a first end cap 84; one end of the first channel 81 is welded at an opening of the wall penetrating pipe 1 in the hot chamber, and the other end is bonded with a first sealing ring 82; the first end cap 84 is rotatable (rotatable by a robot) to open/close the first passage 81; the first handle 83 is capable of pressing the first end cap 84 against the first sealing ring 82.
As shown in fig. 6, the through-wall pipe 1 is provided with a discharging channel 7 at one side of the overhaul region; the discharge channel 7 comprises a second channel 71, a second sealing ring 72, a second handle 73, a second end cap 74 and a bag sealing disc 75; one end of the second channel 71 is welded at the opening of the through-wall pipe 1 in the overhaul region, and the other end is bonded with a second sealing ring 72; the second end cap 74 is rotatable to open/close the second passage 71; the second handle 73 can press the second end cap 74 against the second seal ring 72; a bag sealing plate 75 is welded on one circle of the outer side of the second channel 71, and when the articles are turned out, the isolation of the atmosphere inside and outside the hot chamber is ensured by the bag sealing principle in the prior art.
In this embodiment, the first passage 81 and the second passage 71 are each formed by machining a steel pipe.
During operation, the screw rod 3 is driven by the motor 2 to rotate, so as to drive the nut 62, the sliding bracket mechanism 6 fixedly connected with the nut and the temporary storage box 65 to reciprocate on the screw rod 3. The nut locking ring 63 in the sliding bracket mechanism 6 prevents the nut 62 from rotating. When the nut 62 reciprocates on the lead screw 3, 4 ball bearings 64 in the sliding bracket mechanism 6 roll on the inner wall of the through-wall pipe 1, and the 4 ball bearings 64 have 3 functions of supporting the sliding bracket 61, balancing the torque of the eccentric lead screw nut motion, and reducing the friction force of the sliding bracket 61 along with the nut 62 during the reciprocating motion in the through-wall pipe 1. In the non-transfer state, the end covers of the feed channel 8 and the discharge channel 7 are kept in a closed state to ensure the isolation of the atmosphere inside and outside the hot chamber.
The operation process is as follows:
1. the slide tray temporary storage box 65 is located below the feeding channel 8, the manipulator in the hot chamber rotates the first handle 83 to open the first end cover 84 of the feeding channel 8, the article to be transported is placed in the temporary storage box 65, then the manipulator closes the first end cover 84, the first handle 83 is operated, and the feeding channel 8 is closed.
2. The motor 2 is started to drive the screw 3 to rotate, the sliding bracket 61 and the temporary storage box 65 thereof move linearly on the screw 3 along with the nut 62, and the movement is stopped when the temporary storage box 65 is positioned below the discharging channel 7.
3. The operator opens the second end cap 74 outside the outlet channel 7, removes the article to be transported by means of the bag seal 75 and then closes the outlet channel 7.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (4)
1. The utility model provides a hot chamber and between overhauing alpha waste transfer device which characterized in that: the waste heat recovery device comprises a wall penetrating pipe and a sliding bracket mechanism, wherein two ends of the wall penetrating pipe respectively extend into a hot chamber and a maintenance area, and the sliding bracket mechanism can move in the wall penetrating pipe to transfer waste;
the sliding bracket mechanism comprises a sliding bracket, a nut locking ring and a temporary storage box; the sliding bracket is processed by a round shaft, a through hole is formed in the eccentric position of the lower part of the sliding bracket along the length direction of the sliding bracket, a nut is fixed at one end of the through hole through a nut locking ring, and a lead screw penetrates through the through hole and the nut, keeps a certain gap with the wall of the hole and is matched with the nut; the temporary storage box is arranged at the upper part of the sliding bracket;
the wall penetrating pipe is provided with a feeding channel at one side of the hot chamber; the feeding channel comprises a first channel, a first sealing ring, a first handle and a first end cover; one end of the first channel is welded at an opening of the wall penetrating pipe in the hot chamber, and the other end of the first channel is bonded with a first sealing ring; the first end cap is rotatable to open/close the first passage; the first handle can press the first end cover on the first sealing ring;
a discharge channel is arranged on one side of the overhaul area of the wall penetrating pipe; the discharge channel comprises a second channel, a second sealing ring, a second handle, a second end cover and a bag sealing disc; one end of the second channel is welded at the opening of the through-wall pipe in the overhaul area, and the other end of the second channel is bonded with a second sealing ring; the second end cap is rotatable to open/close the second passage; the second handle can press the second end cover on the second sealing ring; a bag sealing disc is welded on one circle of the outer side of the second channel;
and compensation shielding structures are arranged on the end face of one side of the hot chamber of the wall penetrating pipe and in the hot chamber close to the wall body.
2. The hot cell and service bay alpha waste transfer device of claim 1, wherein: the sliding bracket mechanism moves in the through-wall pipe through screw transmission.
3. The hot cell and service bay alpha waste transfer device of claim 2, wherein: a motor connected with a lead screw is arranged in the overhaul area outside the hot chamber wall; the lead screw penetrates through the wall penetrating pipe and the sliding bracket mechanism; and the bottom of the sliding bracket mechanism is provided with a nut matched with the lead screw.
4. The hot cell and service bay alpha waste transfer device of claim 1, wherein: the lower part of the sliding bracket is provided with at least two square grooves, and ball bearings are installed in the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790856.1A CN108974811B (en) | 2018-07-18 | 2018-07-18 | Alpha waste transfer device between hot chamber and overhaul region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790856.1A CN108974811B (en) | 2018-07-18 | 2018-07-18 | Alpha waste transfer device between hot chamber and overhaul region |
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| Publication Number | Publication Date |
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| CN108974811A CN108974811A (en) | 2018-12-11 |
| CN108974811B true CN108974811B (en) | 2022-03-04 |
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| CN201810790856.1A Active CN108974811B (en) | 2018-07-18 | 2018-07-18 | Alpha waste transfer device between hot chamber and overhaul region |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114620501B (en) * | 2020-12-10 | 2023-10-13 | 中核建中核燃料元件有限公司 | Self-cleaning feeding system for nuclear fuel pellet production line |
| RU204791U1 (en) * | 2021-03-05 | 2021-06-11 | Акционерное общество "Тяжмаш" | LOCALIZING SECURITY SYSTEM TRANSPORT GATE OF A NUCLEAR POWER PLANT WITH A BAYONET LATCH |
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