CN219778539U - On-line decontamination device for radioactive pipeline - Google Patents
On-line decontamination device for radioactive pipeline Download PDFInfo
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- CN219778539U CN219778539U CN202320939006.XU CN202320939006U CN219778539U CN 219778539 U CN219778539 U CN 219778539U CN 202320939006 U CN202320939006 U CN 202320939006U CN 219778539 U CN219778539 U CN 219778539U
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- 238000005202 decontamination Methods 0.000 title claims abstract description 76
- 230000003588 decontaminative effect Effects 0.000 title claims abstract description 75
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 68
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 69
- 238000001179 sorption measurement Methods 0.000 claims abstract description 60
- 238000001914 filtration Methods 0.000 claims abstract description 42
- 238000002360 preparation method Methods 0.000 claims abstract description 32
- 238000011049 filling Methods 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000008676 import Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 229920001410 Microfiber Polymers 0.000 description 4
- 239000003658 microfiber Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000009390 chemical decontamination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000003471 anti-radiation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
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Abstract
The utility model provides an online decontamination device for a radioactive pipeline, which comprises a reagent preparation module, a power circulation filling module and a filtering adsorption module which are sequentially connected in a pipeline along the direction of the reagent, wherein one end of the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline, and one end of the filtering adsorption module, which is far away from the power circulation filling module, is detachably connected to the outlet side of the radioactive pipeline. According to the utility model, the on-line decontamination device jointly designed by the reagent preparation module, the power circulation filling module and the filtering and adsorbing module can realize chemical reagent preparation, filling, circulation decontamination and post-treatment of the decontaminated chemical reagent, and the on-line decontamination of the pipeline is realized without dismantling and transferring the pipeline.
Description
Technical Field
The utility model belongs to the technical field of on-line decontamination of radioactive equipment and pipelines in a nuclear power plant, and relates to an on-line decontamination device for radioactive pipelines.
Background
The method for decontaminating the nuclear facility comprises decontamination of the nuclear facility during the service period and decontamination of the nuclear facility after the retirement. The main purpose of decontamination is to reduce the radioactivity level of the operation site, reduce the release amount of potential radioactive substances and reduce the irradiation dose to be applied to operators; the requirements of shielding and long-distance operation are reduced, and equipment and facilities are convenient to overhaul; reducing the radioactivity of materials, equipment and facilities which are partially polluted by the radionuclide, so as to restore the materials, equipment and facilities to a usable state; reducing radionuclide waste levels of retired nuclear facilities, equipment, materials to reduce difficulty and expense of storage, transportation and disposal; loose radioactive contaminants are removed and the radioactive contaminants are prevented from diffusing.
With the rapid development of the civil nuclear industry, the current decontamination technology mainly comprises physical and chemical methods such as an ultrasonic cleaning method, a dry ice cleaning method, an abrasive jet decontamination method, a chemical decontamination method and the like, and the current decontamination technology has the following limitations: the decontamination technology adopts an off-line decontamination mode, and a target object is required to be placed in a container, so that a large-volume object is difficult to process; the abrasive material can cause a certain degree of abrasion to the target object in the process of spraying and decontaminating, and a large amount of radioactive dust can be generated in the process of cleaning, so that the operation place is subjected to secondary pollution; the process equipment is complex, and the decontamination efficiency is low. Therefore, there is a need to design and develop an online decontamination device for radioactive pipelines, which overcomes the defects of the prior art so as to meet the practical application requirements.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide an online decontamination device for a radioactive pipeline.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an online decontamination device for a radioactive pipeline, which comprises a reagent preparation module, a power circulation filling module and a filtering adsorption module which are sequentially connected in a pipeline along the direction of the reagent, wherein one end of the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline, and one end of the filtering adsorption module, which is far away from the power circulation filling module, is detachably connected to the outlet side of the radioactive pipeline.
According to the utility model, the on-line decontamination device jointly designed by the reagent preparation module, the power circulation filling module and the filtering and adsorbing module can realize chemical reagent preparation, filling, circulation decontamination and post-treatment of the decontaminated chemical reagent, and the on-line decontamination of the pipeline is realized without dismantling and transferring the pipeline.
It should be noted that the inlet side of the radioactive tube in the present utility model may be on any side near the inlet of the radioactive tube, and the outlet side of the radioactive tube may be on any side near the outlet of the radioactive tube, and the online decontamination device in the present utility model may be position-adjusted according to the place where decontamination of the radioactive tube is required.
As a preferable technical scheme of the utility model, the reagent preparation module comprises a dosing box and a stirring device, wherein a stirring paddle is inserted into the top of the stirring device; one end pipeline of the dosing box is connected to the inlet side of the radioactive pipeline, the other end pipeline is connected to the inlet end of the stirring device, and the bottom of the stirring device and the dosing box are respectively and independently connected to the power circulation filling module through pipelines.
As a preferable technical scheme of the utility model, one side of the dosing tank is provided with an interface, and the interface is used for a demineralized water interface.
The size, shape, etc. of the interface are not particularly limited, and can be adaptively adjusted according to practical situations by those skilled in the art. Wherein the shape of the interface may be circular, rectangular, etc.
As a preferable technical scheme of the utility model, the top of the stirring device is also provided with a liquid level meter in a penetrating way, and the liquid level meter is used for measuring the height of the reagent.
The utility model is not limited in particular to the type, material, shape and the like of the liquid level meter, and can be adjusted adaptively according to actual conditions by a person skilled in the art.
In the utility model, chemical and desalted water are added through a dosing port and an interface at the top of the dosing box, and chemical reagents are mixed and homogenized by using a built-in stirring paddle to carry out the next reaction, wherein the chemical reagents can be hydrogen peroxide or potassium permanganate, and the chemical reagents can be adaptively adjusted according to actual conditions by a person skilled in the art.
As a preferable technical scheme of the utility model, one end of the reagent preparation module is provided with an inlet pipeline, and one end of the inlet pipeline far away from the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline through a first quick connector; the one end of filtration adsorption module is provided with the export pipeline, the one end that the filtration adsorption module was kept away from to the export pipeline is connected to the export side of radioactive pipeline through the second quick-operation joint can be dismantled.
The utility model is not limited in particular to the specific structure and dimensions of the first and second quick connectors, which may be the same or different, and is mainly used for connecting the inlet and outlet of the online decontamination device with the pipeline and equipment to be decontaminated, and those skilled in the art can adaptively adjust according to actual conditions.
As a preferable technical scheme of the utility model, the power circulation filling module comprises a circulating pump, a circulating pipeline and a waste liquid treatment pipeline; one end of the circulating pump is connected to the outlet end of the dosing tank and the outlet end of the stirring device through pipelines respectively, and the other end of the circulating pump is detachably connected with the circulating pipeline and the waste liquid treatment pipeline respectively.
The circulating pump of the utility model fills chemical into the pipeline and equipment to be decontaminated through the outlet pipeline of the dosing tank, the circulating pipeline and the waste liquid treatment pipeline, so as to carry out circulating flushing, wherein the chemical in the dosing tank is filled into the pipeline and equipment to be decontaminated through the circulating pipeline by using the circulating pump, thereby realizing reagent circulating decontamination, and the pipeline heating function can be put into operation according to decontamination requirements and effects, and the flushing process is controlled as follows: (1) Chemical reagents with proper volumes and concentrations are prepared through a dosing box, an operator sets dosing amount and dosing speed in a control cabinet according to requirements, dosing is carried out through dosing and a circulating path, and a circulating pump is automatically stopped after dosing is completed. During the process, an operator can manually and emergently stop the circulating pump through the control cabinet, meanwhile, the circulating pump can be automatically stopped when the liquid level of the dosing tank is low, and the control cabinet can display the adding amount of the medicament in the dosing process; (2) After the dosing is finished, the inlet pipeline of the pump is switched from being connected to the dosing box to be connected to the pipeline to be decontaminated; (3) Setting the circulation time by an operator through a control cabinet, starting a circulation pump and a pipeline dosing device through the control cabinet, and automatically stopping the circulation pump after the set circulation time is finished; (4) Periodically sampling and measuring chemical reagent components in the pipeline during circulation, and performing spectrum measurement on the pipeline to determine the decontamination effect; (5) Repeating the operations of the step 3 and the step 4 according to the test and the measurement results; (6) After decontamination is completed, the pump outlet is switched to a chemical waste liquid treatment path, chemical reagents in the pipeline are treated and discharged out of the pipeline, and the pipeline is washed by desalted water.
The utility model is not limited in particular to the type, material and size of the circulating pump, and the person skilled in the art can adjust adaptively according to the actual situation.
As a preferable technical scheme of the utility model, the filtering and adsorbing module comprises a filtering system and a dosing circulating system; one end of the filtering system is connected with the outlet end of the waste liquid treatment pipeline, and the other end of the filtering system is connected to one end of the outlet pipeline away from the outlet side of the radioactive pipeline; one end of the dosing circulation system is connected with the outlet end of the circulation pipeline, and the other end of the dosing circulation system is connected to one end, far away from the outlet side of the radioactive pipeline, of the outlet pipeline.
As a preferred technical scheme of the utility model, the filtering system comprises a first filter, an adsorption device and a second filter which are sequentially connected in a pipeline along the direction of the reagent; an end of the second filter remote from the adsorption device is connected to the outlet side of the outlet pipe remote from the radioactive pipe.
As a preferable embodiment of the present utility model, the first filter and the second filter are identical.
The first filter in the utility model can be a radiation-resistant water filter core made of micro-fiber cotton, the precision of the filter core is 20 micrometers, the second filter can be a radiation-resistant water filter core made of micro-fiber cotton, the precision of the filter core is 1 micrometer, and the filter core can be adaptively adjusted according to actual conditions by a person skilled in the art.
As a preferable technical scheme of the utility model, the adsorption device comprises an activated carbon adsorption bed and a resin adsorption bed, wherein one end pipeline of the activated carbon adsorption bed is connected with the first filter, the other end pipeline of the activated carbon adsorption bed is connected with the resin adsorption bed, and one end pipeline of the resin adsorption bed far away from the activated carbon adsorption bed is connected with the second filter.
The specific structure of the activated carbon adsorption bed is not particularly limited, the function of accommodating and supporting activated carbon can be met, the specific structure of the resin adsorption bed is not limited, the function of accommodating and supporting resin particles can be met, and the resin used in the resin adsorption bed can be gel type cationic resin, large-aperture anionic resin and mixed resin, so that the resin adsorption bed can be adaptively adjusted according to actual conditions by a person skilled in the art.
It should be noted that the detachable connection in the present utility model may be a snap connection or a clamping connection, and the specific connection mode is not particularly limited in the present utility model, and those skilled in the art may adapt according to the actual situation.
In summary, the utility model designs a set of mobile device for operating the on-line chemical decontamination of the pipelines and the equipment of the nuclear power plant, and the on-line decontamination requirement of the pipelines and the equipment of the nuclear power plant is met to a great extent; the connection mode of the quick connector designed by the on-line decontamination device has strong applicability as compared with the conventional quick connector designed by a power plant, can be applied to on-line decontamination work of different areas and different system pipelines of the power plant, and effectively solves the problems of limitation of the size of the pipeline due to off-line decontamination and radiation receiving of personnel during the dismantling of the pipeline; the online decontamination device is of an integrated design, integrates a reagent preparation module, a power circulation filling module and a filtering and adsorbing module, can realize multiple operation modes of chemical reagent filling, pipeline circulation decontamination, decontamination reagent post-treatment and the like, and realizes the functions of online chemical reagent decontamination and decontamination reagent post-treatment of pipelines.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the on-line decontamination device jointly designed by the reagent preparation module, the power circulation filling module and the filtering and adsorbing module can realize chemical reagent preparation, filling, circulation decontamination and post-treatment of the decontaminated chemical reagent, and the on-line decontamination of the pipeline is realized without dismantling and transferring the pipeline.
Drawings
FIG. 1 is a schematic view of an overall structure of an online decontamination device according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of the connection of an on-line decontamination device to a radioactive tube in accordance with one embodiment of the present utility model;
wherein, 1-a medicine adding box; 2-stirring paddles; 3-a liquid level gauge; 4-a circulation pump; 5-a first filter; 6-an activated carbon adsorption bed; 7-a resin adsorption bed; 8-a second filter; 9-a circulation pipeline.
Detailed Description
It is to be understood that in the description of the present utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
It should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
In one embodiment, the utility model provides an on-line decontamination device for a radioactive pipeline, as shown in fig. 1 and 2, wherein the on-line decontamination device comprises a reagent preparation module, a power circulation filling module and a filtering adsorption module which are sequentially connected in a pipeline along the direction of reagent, one end of the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline, and one end of the filtering adsorption module, which is far away from the power circulation filling module, is detachably connected to the outlet side of the radioactive pipeline.
According to the utility model, the on-line decontamination device jointly designed by the reagent preparation module, the power circulation filling module and the filtering and adsorbing module can realize chemical reagent preparation, filling, circulation decontamination and post-treatment of the decontaminated chemical reagent, and the on-line decontamination of the pipeline is realized without dismantling and transferring the pipeline.
It should be noted that the inlet side of the radioactive tube in the present utility model may be on any side near the inlet of the radioactive tube, and the outlet side of the radioactive tube may be on any side near the outlet of the radioactive tube, and the online decontamination device in the present utility model may be position-adjusted according to the place where decontamination of the radioactive tube is required.
The reagent preparation module comprises a dosing box 1 and a stirring device, wherein a stirring paddle 2 is arranged at the top of the stirring device in a penetrating way; one end pipeline of the dosing tank 1 is connected to the inlet side of the radioactive pipeline, the other end pipeline is connected with the inlet end of the stirring device, and the bottom of the stirring device and the dosing tank 1 are respectively and independently connected to the power circulation filling module through pipelines. One side of the dosing tank 1 is provided with an interface which is used for a demineralized water interface. The size, shape, etc. of the interface are not particularly limited, and can be adaptively adjusted according to practical situations by those skilled in the art. Wherein the shape of the interface may be circular, rectangular, etc.
The top of agitating unit still alternates and is provided with level gauge 3, and level gauge 3 is used for measuring the height of reagent. The type, material, shape, etc. of the liquid level meter 3 are not particularly limited, and can be adaptively adjusted according to practical situations by those skilled in the art.
In the utility model, chemical and desalted water are added through a dosing port and an interface at the top of the dosing tank 1, and chemical reagents are mixed and homogenized by using the built-in stirring paddles 2 to carry out the next reaction, wherein the chemical reagents can be hydrogen peroxide or potassium permanganate, and the chemical reagents can be adaptively adjusted according to actual conditions by a person skilled in the art.
One end of the reagent preparation module is provided with an inlet pipeline, and one end of the inlet pipeline far away from the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline through a first quick connector; one end of the filtering and adsorbing module is provided with an outlet pipeline, and one end of the outlet pipeline far away from the filtering and adsorbing module is detachably connected to the outlet side of the radioactive pipeline through a second quick connector.
The utility model is not limited in particular to the specific structure and dimensions of the first and second quick connectors, which may be the same or different, and is mainly used for connecting the inlet and outlet of the online decontamination device with the pipeline and equipment to be decontaminated, and those skilled in the art can adaptively adjust according to actual conditions.
The power circulation filling module comprises a circulating pump 4, a circulating pipeline 9 and a waste liquid treatment pipeline; one end of the circulating pump 4 is connected to the outlet end of the dosing tank 1 and the outlet end of the stirring device through pipelines respectively, and the other end of the circulating pump 4 is detachably connected with a circulating pipeline 9 and a waste liquid treatment pipeline respectively.
The circulating pump 4 of the utility model fills chemical into the pipeline and equipment to be decontaminated through the outlet pipeline of the dosing tank 1, the circulating pipeline 9 and the waste liquid treatment pipeline, so as to carry out circulating flushing, wherein the chemical reagent in the dosing tank 1 is filled into the pipeline and equipment to be decontaminated through the circulating pipeline 9 by using the circulating pump 4, thereby realizing reagent circulating decontamination and enabling the pipeline heating function to be put into operation according to decontamination requirements and effects. The type, material and size of the circulation pump 4 are not particularly limited, and those skilled in the art can adapt to the actual situation.
The filtering and adsorbing module comprises a filtering system and a dosing circulating system; one end of the filtering system is connected with the outlet end of the waste liquid treatment pipeline, and the other end of the filtering system is connected to one end of the outlet pipeline away from the outlet side of the radioactive pipeline; one end of the dosing circulation system is connected to the outlet end of the circulation duct 9 and the other end is connected to the end of the outlet duct remote from the outlet side of the radioactive duct.
The filtering system comprises a first filter 5, an adsorption device and a second filter 8 which are sequentially connected in a pipeline along the direction of the reagent; the end of the second filter 8 remote from the adsorption means is connected in line to the outlet side of the outlet line remote from the radioactive tubing.
The first filter 5 is identical to said second filter 8. It should be noted that, the first filter 5 in the present utility model may be an anti-irradiation water filter element made of micro-fiber cotton, and the precision of the filter element is 20 micrometers; the second filter 8 can be an anti-radiation water filter core made of micro-fiber cotton, the precision of the filter core is 1 micrometer, and the filter core can be adaptively adjusted according to practical conditions by a person skilled in the art.
The adsorption device comprises an activated carbon adsorption bed 6 and a resin adsorption bed 7, wherein one end of the activated carbon adsorption bed 6 is connected with the first filter 5 through a pipeline, the other end of the activated carbon adsorption bed is connected with the resin adsorption bed 7 through a pipeline, and one end of the resin adsorption bed 7, far away from the activated carbon adsorption bed 6, is connected with the second filter 8 through a pipeline.
Example 1
The embodiment provides an online decontamination device for a radioactive pipeline, wherein:
the on-line decontamination device comprises a reagent preparation module, a power circulation filling module and a filtering adsorption module which are sequentially connected in a pipeline along the trend of the reagent, wherein one end of the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline, and one end of the filtering adsorption module, which is far away from the power circulation filling module, is detachably connected to the outlet side of the radioactive pipeline.
The reagent preparation module comprises a dosing box 1 and a stirring device, wherein a stirring paddle 2 is arranged at the top of the stirring device in a penetrating way; one end pipeline of the dosing tank 1 is connected to the inlet side of the radioactive pipeline, the other end pipeline is connected with the inlet end of the stirring device, and the bottom of the stirring device and the dosing tank 1 are respectively and independently connected to the power circulation filling module through pipelines. One side of the dosing tank 1 is provided with an interface which is used for a demineralized water interface. The top of agitating unit still alternates and is provided with level gauge 3, and level gauge 3 is used for measuring the height of reagent.
One end of the reagent preparation module is provided with an inlet pipeline, and one end of the inlet pipeline far away from the reagent preparation module is detachably connected to the inlet side of the radioactive pipeline through a first quick connector; one end of the filtering and adsorbing module is provided with an outlet pipeline, and one end of the outlet pipeline far away from the filtering and adsorbing module is detachably connected to the outlet side of the radioactive pipeline through a second quick connector.
The power circulation filling module comprises a circulating pump 4, a circulating pipeline 9 and a waste liquid treatment pipeline; one end of the circulating pump 4 is connected to the outlet end of the dosing tank 1 and the outlet end of the stirring device through pipelines respectively, and the other end of the circulating pump 4 is detachably connected with a circulating pipeline 9 and a waste liquid treatment pipeline respectively.
The filtering and adsorbing module comprises a filtering system and a dosing circulating system; one end of the filtering system is connected with the outlet end of the waste liquid treatment pipeline, and the other end of the filtering system is connected to one end of the outlet pipeline away from the outlet side of the radioactive pipeline; one end of the dosing circulation system is connected to the outlet end of the circulation duct 9 and the other end is connected to the end of the outlet duct remote from the outlet side of the radioactive duct. The filtering system comprises a first filter 5, an adsorption device and a second filter 8 which are sequentially connected in a pipeline along the direction of the reagent; the end of the second filter 8 remote from the adsorption means is connected in line to the outlet side of the outlet line remote from the radioactive tubing. The first filter 5 is identical to said second filter 8. The adsorption device comprises an activated carbon adsorption bed 6 and a resin adsorption bed 7, wherein one end of the activated carbon adsorption bed 6 is connected with the first filter 5 through a pipeline, the other end of the activated carbon adsorption bed is connected with the resin adsorption bed 7 through a pipeline, and one end of the resin adsorption bed 7, far away from the activated carbon adsorption bed 6, is connected with the second filter 8 through a pipeline.
In summary, the utility model designs a set of mobile device for operating the on-line chemical decontamination of the pipelines and the equipment of the nuclear power plant, and the on-line decontamination requirement of the pipelines and the equipment of the nuclear power plant is met to a great extent; the connection mode of the quick connector designed by the on-line decontamination device has strong applicability as compared with the conventional quick connector designed by a power plant, can be applied to on-line decontamination work of different areas and different system pipelines of the power plant, and effectively solves the problems of limitation of the size of the pipeline due to off-line decontamination and radiation receiving of personnel during the dismantling of the pipeline; the online decontamination device is of an integrated design, integrates a reagent preparation module, a power circulation filling module and a filtering and adsorbing module, can realize multiple operation modes of chemical reagent filling, pipeline circulation decontamination, decontamination reagent post-treatment and the like, and realizes the functions of online chemical reagent decontamination and decontamination reagent post-treatment of pipelines.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that fall within the technical scope of the present utility model disclosed herein are within the scope of the present utility model.
Claims (10)
1. The utility model provides an online decontamination plant of radioactive pipeline, its characterized in that, online decontamination plant includes along reagent trend pipeline connection's reagent preparation module, power circulation filling module and filtration adsorption module in proper order, the import side of radioactive pipeline can be dismantled to be connected to reagent preparation module's one end, filtration adsorption module is kept away from the one end of power circulation filling module can be dismantled and be connected to the export side of radioactive pipeline.
2. The on-line decontamination device of a radioactive pipeline according to claim 1, wherein the reagent preparation module comprises a dosing tank and a stirring device, and a stirring paddle is inserted into the top of the stirring device;
one end pipeline of the dosing box is connected to the inlet side of the radioactive pipeline, the other end pipeline is connected to the inlet end of the stirring device, and the bottom of the stirring device and the dosing box are respectively and independently connected to the power circulation filling module through pipelines.
3. The on-line decontamination device of a radioactive tube of claim 2, wherein one side of the dosing tank is provided with an interface for a demineralized water interface.
4. The on-line decontamination device of a radioactive tube of claim 2, wherein the top of the stirring device is further threaded with a level gauge for measuring the height of the reagent.
5. The on-line decontamination apparatus of a radioactive tubing of claim 2, wherein an end of the reagent preparation module is provided with an inlet line, and an end of the inlet line remote from the reagent preparation module is detachably connected to an inlet side of the radioactive tubing by a first quick connector;
the one end of filtration adsorption module is provided with the export pipeline, the one end that the filtration adsorption module was kept away from to the export pipeline is connected to the export side of radioactive pipeline through the second quick-operation joint can be dismantled.
6. The on-line decontamination apparatus of a radioactive conduit of claim 5, wherein the power cycle fill module comprises a circulation pump, a circulation conduit, and a waste treatment conduit;
one end of the circulating pump is connected to the outlet end of the dosing tank and the outlet end of the stirring device through pipelines respectively, and the other end of the circulating pump is detachably connected with the circulating pipeline and the waste liquid treatment pipeline respectively.
7. The on-line decontamination apparatus of a radioactive tube of claim 6, wherein the filter adsorption module comprises a filter system and a dosing circulation system;
one end of the filtering system is connected with the outlet end of the waste liquid treatment pipeline, and the other end of the filtering system is connected to one end of the outlet pipeline away from the outlet side of the radioactive pipeline;
one end of the dosing circulation system is connected with the outlet end of the circulation pipeline, and the other end of the dosing circulation system is connected to one end, far away from the outlet side of the radioactive pipeline, of the outlet pipeline.
8. The on-line decontamination apparatus of a radioactive tube of claim 7, wherein the filtration system comprises a first filter, an adsorption device, and a second filter in sequential piping along the direction of the reagent;
an end of the second filter remote from the adsorption device is connected to the outlet side of the outlet pipe remote from the radioactive pipe.
9. The on-line decontamination device of a radioactive tube of claim 8, wherein the first filter and the second filter are the same.
10. The on-line decontamination apparatus of a radioactive tunnel of claim 9, wherein the adsorption apparatus comprises an activated carbon adsorption bed and a resin adsorption bed, wherein one end of the activated carbon adsorption bed is connected to the first filter by a pipeline, the other end is connected to the resin adsorption bed, and wherein an end of the resin adsorption bed remote from the activated carbon adsorption bed is connected to the second filter by a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320939006.XU CN219778539U (en) | 2023-04-24 | 2023-04-24 | On-line decontamination device for radioactive pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320939006.XU CN219778539U (en) | 2023-04-24 | 2023-04-24 | On-line decontamination device for radioactive pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219778539U true CN219778539U (en) | 2023-09-29 |
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| CN202320939006.XU Active CN219778539U (en) | 2023-04-24 | 2023-04-24 | On-line decontamination device for radioactive pipeline |
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| CN (1) | CN219778539U (en) |
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