CN117451400A - Sealed radioactive dry resin remote sampling device - Google Patents
Sealed radioactive dry resin remote sampling device Download PDFInfo
- Publication number
- CN117451400A CN117451400A CN202311544904.6A CN202311544904A CN117451400A CN 117451400 A CN117451400 A CN 117451400A CN 202311544904 A CN202311544904 A CN 202311544904A CN 117451400 A CN117451400 A CN 117451400A
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- CN
- China
- Prior art keywords
- sampling
- dry resin
- pipe
- horizontal
- blanking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 122
- 239000011347 resin Substances 0.000 title claims abstract description 35
- 229920005989 resin Polymers 0.000 title claims abstract description 35
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 17
- 210000001503 joint Anatomy 0.000 claims description 20
- 210000004907 gland Anatomy 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000000443 aerosol Substances 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 239000002901 radioactive waste Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a sealed radioactive dry resin remote sampling device, and belongs to the technical field of radioactive waste resin sampling. The horizontal transfer channel of the device is provided with a rack, and the inner end of the horizontal transfer channel is connected with the lower end of the sampler; the horizontal sleeve of the sampler is externally provided with an indexing gear, the middle section of the horizontal sleeve is provided with a blanking hole, and the pipe body is internally provided with a sampling shaft which forms a moving pair with the horizontal sleeve; the upper surface of the guide bottom plate of the translation trolley is provided with a guide groove, and a roller for supporting the shielding block is embedded in the guide groove; a driving gear driven by a vertical motor at one side of the guide bottom plate is meshed with the rack; the middle of the upper part of the shielding block is embedded into the sampling bottle, and one side of the bottom is fixedly connected with a blind rivet. The invention realizes the material transfer under unmanned state, does not generate secondary waste, avoids the diffusion of aerosol and has good safety.
Description
Technical Field
The invention relates to a sampling device, in particular to a sealed radioactive dry resin remote sampling device, and belongs to the technical field of radioactive waste resin sampling.
Background
In the operation process of the third generation pressurized water reactor nuclear power plant, the loop cooling water, the spent fuel pool water and the process wastewater are purified by adopting ion exchange resins. When the resin fails, replacement is required. Therefore, the nuclear power station generates a considerable amount of waste resin to be properly treated, and the sampling analysis is one of the indispensable process links. Since the waste resin sampling device operates in a high radiation environment for a long period of time, the requirements on stability, sealability, accuracy, reliability and automation degree of the sampling device are high.
As can be seen from the search, the chinese patent document with application number 202222495477 discloses a full-automatic dry resin sampling device, which comprises a resin blanking tank filled with dry resin, a sampling pipeline, a sample feeding pipeline, a sample collecting pipeline and a gas treatment pipeline; the sampling pipe is provided with a resin sampler and a temporary storage bottle, the feeding pipe is provided with a fan and a cyclone separator, the sampling pipe is provided with a sampling pipe and a shielding tank, and the gas treatment pipe is provided with a turbine high-pressure fan, a dryer and the like. The technical scheme can replace manual operation, and is capable of automatically sampling, sending and receiving samples and performing gas treatment, but has the problems of generating secondary waste gas and needing to circularly enter other systems for treatment, and in addition, the equipment linkage requirement is high, and the stable sampling effect is not beneficial to being ensured.
Disclosure of Invention
The invention aims at: aiming at the problems in the prior art, the sealed radioactive dry resin remote sampling device which operates independently and generates no secondary waste is provided.
In order to achieve the above purpose, the basic technical scheme of the sealed radioactive dry resin remote sampling device of the invention is as follows: the device comprises a horizontal transfer channel penetrating through a shielding wall on a bracket, wherein a rack covered in a sealing cover extending along the length direction is arranged on the transfer channel, the inner end of the transfer channel is connected with the lower end of a sampler, and a docking station for switching the transfer trolley with the transfer trolley through a translation trolley is arranged outside the transfer channel;
the sampler comprises a rotatable horizontal sleeve arranged at the upper end of a hollow upright post, an indexing gear connected with a horizontal motor in a transmission way is arranged outside the horizontal sleeve, a blanking hole communicated with a blanking pipe supported in the hollow upright post is arranged in the middle section of the horizontal sleeve, a sampling shaft forming a movable pair with the blanking pipe is arranged in a pipe body, the outer end of the sampling shaft is provided with a sampling recess, the inner end of the sampling shaft is connected with the telescopic end of a sampling cylinder, and the sampling shaft is provided with a sampling position at which the sampling recess extends into a butt joint pipe and a position to be shifted of the blanking hole in a retracting alignment manner;
the upper surface of a guide bottom plate provided with casters at the lower part of the translation trolley is provided with guide grooves axially parallel to the casters, and idler wheels for supporting shielding blocks are embedded in the guide grooves; a driving gear driven by a vertical motor is arranged on one side of the guide bottom plate, and the driving gear is meshed with the rack; the upper center of the shielding block is embedded into the sampling bottle.
The invention is further perfected that the lower end of the blanking pipe is provided with the gland mechanism, the gland mechanism comprises the gland cylinder which is arranged beside the blanking pipe through the support frame fixedly connected with the blanking pipe, the downward telescopic end of the gland cylinder is fixedly connected with the gland pipe which is movably sleeved at the lower end of the blanking pipe through the connecting plate, and the lower end of the gland pipe is provided with the gland edge, so that the sample receiving of the sampling bottle in a sealed state can be further ensured.
The invention is further perfected that the upper end and the lower end of the sampling pipeline of the butt joint pipe are respectively provided with an interface flange for being connected with a radioactive dry resin conveying pipeline, the sampling pipeline is provided with a sampling socket corresponding to the extending position of the sampling shaft, and a baffle plate and a water baffle plate which can automatically close the sampling socket are hinged in the sampling pipeline. Therefore, the large-area aerosol in the pipeline can be effectively prevented from entering the gap of the sampler by the pipeline cleaning water.
The invention is further perfected that one side of the bottom of the shielding block is fixedly connected with a blind rivet; the body of the transfer trolley is provided with a push-pull lock hook which forms a horizontal moving pair with the transfer trolley, and the push-pull lock hook is formed by a rod body and a hook head which is matched with the blind rivet; the vehicle body is also provided with a guide rail which can be in butt joint with a guide groove on the guide bottom plate of the translation trolley, so that the sampling bottle can be smoothly transferred out.
The invention is further perfected that the sampling recess is opposite to the feed opening when the position to be shifted of the sampling shaft rotates 180 degrees along with the horizontal sleeve.
The invention is further perfected that the lower part of the blanking pipe is provided with a vibrator. The pipeline blanking can be promoted through vibration, materials are prevented from accumulating on the inner wall of the pipeline, and the residual rate is reduced.
The invention is still further perfected in that the feed opening of the horizontal sleeve is communicated with the feed-down pipe through a funnel opening.
The invention can quantitatively sample, waterproof and dustproof, and realizes the material transfer under the unmanned state by means of the automatic walking function of the translation trolley. No secondary waste is generated in the whole dry resin sampling process, and the aerosol diffusion is avoided, so that the method has good safety.
Drawings
FIG. 1 is a schematic general structure of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of the sampler of FIG. 1;
FIG. 4 is an enlarged schematic view of the docking station of the embodiment of FIG. 1;
FIG. 5 is a schematic diagram of the butt joint structure of the sampler and the sampling bottle in the embodiment of FIG. 1;
FIG. 6 is a schematic view of the automated transfer mechanism of the embodiment of FIG. 1;
fig. 7 is a schematic view of the structure of the transfer cart for removing the shielding block in the embodiment of fig. 1.
In the figure: 1. a butt joint pipe; 2. a sampler; 3. sampling bottle; 4. a shielding container; 5. a translation trolley; 6. a transfer channel; 7. a transfer trolley; 8. an interface flange; 9. a sampling pipe; 10. a water baffle; 11. a striker plate; 12. sampling socket; 13. a sampling shaft; 14. a sleeve; 15. a sampling cylinder; 16. an indexing gear; 17. a horizontal motor; 18. a blanking pipe; 19. a vibrator; 20. a capping mechanism; 21. a shielding block; 22. pulling nails; 23. a stop block; 24. a roller; 25. a vertical motor; 26. a baffle column; 27. a drive gear; 28. casters; 29. a proximity switch; 30. a guide bottom plate; 31. a proximity switch; 32. a sealing cover; 33. a rack; 34. a positioning mechanism; 35. a bracket; 36. sealing the cover plate; 37. a guide rail; 38. push-pull latch hook; 39. and a universal wheel.
Description of the embodiments
Examples
The remote sampling device for the sealed radioactive dry resin of the present embodiment is shown in fig. 1 and 2, wherein a horizontal transfer passage 6 supported on a bracket 35 passes through a shielding wall, and a rack 33 covered in a seal cover 32 extending in the length direction is installed at the upper middle. The inner end of the transfer channel 6 is connected with the lower end of the sampler 2, and the outside is provided with a docking station which is switched with the transfer trolley 7 through the translation trolley 5. The upper end of the sampler 2 is connected with a vertical butt joint pipe 1, and the butt joint pipe 1 is connected with a radioactive dry resin conveying pipeline.
The specific construction of the sampler 2 is shown in fig. 3, and comprises a rotatable horizontal sleeve 14 mounted on the upper end of the hollow upright 2-1, the middle part of which has a discharge opening 14-1 which can communicate with a discharge pipe 18 supported in the hollow upright 2-1 through a funnel opening 18-1. The horizontal sleeve 14 is externally provided with an indexing gear 16 which is in transmission connection with a horizontal motor 17 arranged at the upper part of the hollow upright post 2-1, and the tube body is internally provided with a sampling shaft 13 which forms a moving pair with the indexing gear, the outer end of the sampling shaft 13 is provided with a sampling recess 13-1, and the inner end of the sampling shaft is connected with the telescopic end of a sampling cylinder 15. The sampling shaft 13 thus has a sampling position in which the sampling recess protrudes into the docking tube 1 and a position to be displaced in which the sampling recess is aligned with the discharge opening under the action of the sampling cylinder 15. When the sampling recess 13-1 extends into the butt joint pipe 1, a dry resin sample flowing through is taken; then the sample is retracted into the horizontal sleeve 14, and when the motor drives the horizontal sleeve 14 to rotate 180 degrees, the sampling recess 13-1 is opposite to the feed opening 14-1, and the retrieved dry resin sample is poured into the feed down pipe 18. A vibrator 19 is arranged at the lower part of the blanking pipe 18 so as to effectively blanking by means of vibration; the lower end of the blanking pipe 18 is provided with a gland mechanism 20.
The specific structure of the butt joint pipe 1 is shown in fig. 4, and comprises a sampling pipeline 9 with an interface flange 8 at the upper end and the lower end respectively, a sampling socket 12 is arranged at the extending position of the sampling pipeline 9 corresponding to a sampling shaft 13, and a baffle plate 11 and a baffle plate 10 which can automatically close the sampling socket 12 by means of gravity are hinged in the sampling pipeline 9.
The translation trolley 5 has a specific structure shown in fig. 5 and 6, and the upper surface of a guide bottom plate 30 provided with casters 28 at the lower part is provided with two guide grooves axially parallel to the casters 28, and the rollers 24 for supporting the shielding block 21 are embedded in the grooves. One side of the guide bottom plate 30 is provided with a driving gear 27 driven by a vertical motor 25, the driving gear is meshed with a rack 33 fixed on a bracket 35, the upper center of the shielding block 21 is embedded into a sampling bottle, and one side of the bottom is fixedly connected with a blind rivet 22. Therefore, the vertical motor 25 can drive the guide bottom plate 30, the shielding block 21 and the sampling bottle to shift along the length direction of the bracket 35 between the lower end position of the sampler 2 and the butt joint station after penetrating out of the shielding wall, and the pulling rivet 22 can be hooked and pulled by the hook head of the push-pull latch hook 38, so that the shielding block 21 and the sampling bottle can be moved out of the bracket 35 at the butt joint station. The gland mechanism 20 comprises gland cylinders 20-1 which are respectively arranged at two sides of the blanking pipe 18 through support frames 20-2 fixedly connected to the blanking pipe 18, and the downward telescopic ends of the gland cylinders 20-1 are fixedly connected with gland pipes 20-4 which are movably sleeved at the lower end of the blanking pipe 18 through connecting plates 20-3. Thus, the capping tube 20-4 can be lifted and lowered as required by the driving of the capping cylinder 20-1, and the edge of the mouth of the sampling bottle is closed by the capping rim 20-5 at the lower end (see fig. 5). After the transfer trolley is in place, the positioning mechanism 34 is matched with the translation trolley 5 through a cylinder jacking positioning pin shaft, and the position of the translation trolley is fixed. The secondary structure of the stop 23, the post 26, the proximity switch 31, etc. for defining the translation carriage in place are readily understood and will not be described in detail.
The specific structure of the transfer trolley 7 is shown in fig. 7, the upper surface of the vehicle body is provided with a push-pull lock hook 38 which forms a horizontal moving pair with the transfer trolley, and the push-pull lock hook 38 is composed of a rod body and a hook head which is matched with the blind rivet 22. The upper surface of the vehicle body also has guide rails which can be in butt joint with guide grooves on the guide bottom plate 30 of the translation trolley 5, so that the transfer trolley 7 to which the shielding block 21 embedded with the sampling bottle on the translation trolley 5 is pulled can be carried away by means of the push-pull latch hook 38. Other structures such as the sealing cover plate 36 with the guide rail 37 of the transfer trolley 7 are basically consistent with those of the transfer trolley disclosed in the Chinese patent document of application number 202310128302.6, and are not repeated.
The specific sampling steps of this embodiment are as follows:
s1, pipeline butt joint, wherein the upper side of a butt joint pipe 1 is connected with an external dry resin blanking pipeline through an interface flange 8, a sampling socket 12 is arranged on the side face to be in butt joint with a sampler 2, a water baffle 10 is fixedly arranged on the side wall of a sampling pipeline 9, a material baffle 11 is arranged on the side wall of the sampling pipeline through a shaft, and the lower edge of the water baffle 10 covers the upper edge of the material baffle 11.
S2, resin sampling, namely, a sampling groove with a fixed volume is formed in the front end of a sampling shaft 13 of the sampler 2, so that materials with the fixed volume can be reserved. After the sampling bottle is installed in place, the air cylinder 20 descends, the blanking pipe is in butt joint with the sampling bottle, and the sampling bottle cap is tightly pressed to ensure sealing; then the sampling shaft 13 stretches into the butt joint pipe 1 to sample under the driving of the cylinder piston rod 15, and when in sampling, the sampling shaft pushes the baffle plate 11 open and stretches into the sampling pipeline 9 to receive materials, and the sampling shaft is retracted after 5-10S; after the sleeve 14 is connected with a motor 17 through an indexing gear 16 and is in place, the sampling shaft 13 and the sleeve 14 are turned over and blanked under the action of the motor 17, and a resin sample enters the lower sampling bottle 3 through a blanking pipe 18; the blanking tube 18 is vibrated by the vibrator 19 during blanking to ensure that the resin sample can completely enter the sample bottle 3.
S3, transporting the sampling bottle, namely after the sampling bottle takes the sample, lifting the air cylinder 20, and separating the blanking pipe from the sampling bottle; the sampling bottle 3 is tightly placed in the shielding container 4, the shielding container 4 is placed on the translation trolley 5, a signal for positioning the shielding container 4 is triggered through the proximity switch 29, and the stop block 23 is mechanically limited through the stop post 26. The translation trolley 5 is placed in the sealed transfer channel 6; the driving motor 25 drives the gear 27 to run along the rack 33, drives the translation trolley 5 to move to a specified sampling point along a guide path in the transfer channel, the proximity switch is triggered, and the positioning mechanism 34 is matched with the translation trolley 5 through a cylinder jacking positioning pin shaft, so that positioning is realized, and the transportation process is finished.
S4, the sampling bottle enters the transfer trolley to be received, the transfer trolley 7 is pushed to enter a fixed receiving point, the positioning switch 31 is triggered, and the receiving function of the sampling bottle is released. Push-pull locking mechanism 38 is pushed to connect with shielding container blind rivet 22, transfer shielding container 4 to transfer trolley 7, cover plate 36 is pushed to move along direction of guide rail 37 until the opening of shielding container is completely covered, at this time, the receiving work is finished, the sample is manually sent to laboratory for analysis, and transfer trolley 7 moves through universal wheel 39.
Compared with the prior art, the embodiment has the following remarkable advantages:
1. no secondary waste is generated in the whole dry resin sampling process, and the equipment can independently and independently operate without depending on other equipment.
2. Inside waterproof baffle and dustproof baffle have been set up at the sample takeover, can open automatically during the sample, automatic shutdown prevents that the sampler from intaking or advancing the dirt when not sampling.
3. According to the invention, the sampler is driven to stretch by the air cylinder, the pressure is controllable and adjustable, and the sampler is prevented from being blocked by resin; the auxiliary vibrator is arranged to assist in pipeline blanking, so that blanking effect is enhanced.
4. The self-walking transfer trolley is configured, and the automation level of the equipment is improved.
5. And a transportation channel is configured, so that the aerosol is effectively prevented from being diffused in the transportation process, and the protection level of equipment is improved.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (7)
1. A sealed radioactive dry resin remote sampling device is characterized in that: the device comprises a horizontal transfer channel penetrating through a shielding wall on a bracket, wherein a rack covered in a sealing cover extending along the length direction is arranged on the transfer channel, the inner end of the transfer channel is connected with the lower end of a sampler, and a docking station for switching the transfer trolley with the transfer trolley through a translation trolley is arranged outside the transfer channel;
the sampler comprises a rotatable horizontal sleeve arranged at the upper end of the hollow upright post, an indexing gear in transmission connection with a horizontal motor is arranged outside the horizontal sleeve, a blanking port communicated with a blanking pipe supported in the hollow upright post is arranged in the middle section of the horizontal sleeve, and a sampling shaft forming a movable pair with the horizontal sleeve is arranged in the pipe body; the outer end of the sampling shaft is provided with a sampling recess, the inner end of the sampling shaft is connected with the telescopic end of the sampling cylinder, and the sampling shaft is provided with a sampling position where the sampling recess extends into the butt joint pipe and a position to be shifted where the sampling recess is retracted to align with the blanking opening;
the upper surface of a guide bottom plate provided with casters at the lower part of the translation trolley is provided with guide grooves axially parallel to the casters, and idler wheels for supporting shielding blocks are embedded in the guide grooves; a driving gear driven by a vertical motor is arranged on one side of the guide bottom plate, and the driving gear is meshed with the rack; the upper center of the shielding block is embedded into the sampling bottle.
2. The sealed radioactive dry resin remote sampling device according to claim 1, wherein: the gland mechanism is installed to the blanking pipe lower extreme, gland mechanism contains the gland cylinder of installing in the blanking pipe side through the support frame that links firmly in the blanking pipe, gland cylinder's flexible end down links firmly through the connecting plate with the gland pipe that the loop is in the blanking pipe lower extreme, the lower extreme of gland pipe has the gland reason.
3. The sealed radioactive dry resin remote sampling device according to claim 2, wherein: the upper end and the lower end of the sampling pipeline of the butt joint pipe are respectively provided with an interface flange for being connected with a radioactive dry resin conveying pipeline, the sampling pipeline is provided with a sampling socket corresponding to the extending position of the sampling shaft, and a baffle plate capable of automatically closing the sampling socket is hinged in the sampling pipeline.
4. A sealed radioactive dry resin remote sampling device according to claim 3, characterized in that: one side of the bottom of the shielding block is fixedly connected with a blind rivet; the body of the transfer trolley is provided with a push-pull lock hook which forms a horizontal moving pair with the transfer trolley, and the push-pull lock hook is formed by a rod body and a hook head which is matched with the blind rivet; the car body is also provided with a guide rail which can be in butt joint with a guide groove on the guide bottom plate of the translation trolley.
5. The sealed radioactive dry resin remote sampling device according to claim 4, wherein: when the sampling shaft is positioned at the position to be shifted and rotates 180 degrees along with the horizontal sleeve, the sampling recess is opposite to the feed opening.
6. The sealed radioactive dry resin remote sampling device according to claim 5, wherein: and a vibrator is arranged at the lower part of the blanking pipe.
7. The sealed radioactive dry resin remote sampling device according to claim 6, wherein: the blanking port of the horizontal sleeve is communicated with the blanking pipe through a hopper port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311544904.6A CN117451400A (en) | 2023-11-20 | 2023-11-20 | Sealed radioactive dry resin remote sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311544904.6A CN117451400A (en) | 2023-11-20 | 2023-11-20 | Sealed radioactive dry resin remote sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117451400A true CN117451400A (en) | 2024-01-26 |
Family
ID=89596700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311544904.6A Pending CN117451400A (en) | 2023-11-20 | 2023-11-20 | Sealed radioactive dry resin remote sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117451400A (en) |
-
2023
- 2023-11-20 CN CN202311544904.6A patent/CN117451400A/en active Pending
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