CN216388783U

CN216388783U - Radioactive waste liquid treatment system

Info

Publication number: CN216388783U
Application number: CN202122830281.1U
Authority: CN
Inventors: 李永辉; 吴雪莲
Original assignee: Shanghai Hengxi Construction Technology Co ltd
Current assignee: Shanghai Hengxi Construction Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-26
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a radioactive waste liquid treatment system, which comprises a biodegradation tank, a first decay tank, a second decay tank, a third decay tank and related pipelines, wherein the first decay tank, the second decay tank and the third decay tank respectively comprise a tank body, two fixing frame plates are fixedly connected to the top end of the tank body, driving mechanisms are arranged on the inner sides of the two fixing frame plates, an outer cylinder body is arranged on the inner wall of each decay tank, a sampling unit which is settled in the tank body for layered sampling is arranged on the inner side of the outer cylinder body, a screw rod is driven to rotate by starting a motor to work, the inner cylinder body can move downwards in the outer cylinder body under the sliding limit of the outer cylinder body and the inner cylinder body, each sampling unit is sequentially settled downwards along the outer cylinder body, and the radioactivity degree of different liquid layers in each decay tank can be analyzed, and the authenticity of the collected data is improved.

Description

Radioactive waste liquid treatment system

Technical Field

The utility model belongs to the technical field related to radioactive waste liquid treatment, and particularly relates to a radioactive waste liquid treatment system.

Background

The hazardous property of radioactive waste liquid is the most important in all kinds of waste liquid, and the radioactive waste liquid is mainly from sewage discharge in nuclear industry, nuclear medicine and the like at present. Radioactive waste is a substance that contains or is contaminated with radionuclides, whose concentration or specific activity is greater than the level of cleanliness regulations prescribed by the state department of administration, and is expected to be no longer utilized.

Application number is CN201520454660.7 discloses a radioactive liquid waste treatment system, including biodegradable tank, a plurality of decay case and sample groove, the feed liquor end of each decay case is parallelly connected and is connected with the low level flowing back end in biodegradable tank, the flowing back end of each decay case is parallelly connected and links to each other with the high-order flowing back end in biodegradable tank, sample groove is all connected to each decay case, has solved the technical problem of the harm that the radioactive liquid waste of accurate control caused.

The prior radioactive waste liquid treatment system technology has the following problems: concentrate the sampling to each decay case respectively through setting up the sample cell, the mode of sampling only takes a sample through the direct discharge of pipeline, and sampling efficiency reduces, and the radioactivity degree of each decay incasement different liquid layers can't be analyzed for the authenticity of data collection is not enough, and is comparatively chaotic during the collection of sample, is unfavorable for in order gathering and record, influences detection efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a radioactive waste liquid treatment system to solve the problems that the radioactive degree of different liquid layers in each decay tank cannot be analyzed and the collection is disordered in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a radioactive waste liquid treatment system, includes biodegradable tank, first decay case, second decay case, third decay case and relevant pipeline, first decay case, second decay case and third decay case all include the box, two fixed frame plates of top fixedly connected with of box, two the inboard of fixed frame plate is provided with actuating mechanism, the outer barrel of fixedly connected with on the top inner wall of box, the inboard of outer barrel is provided with a plurality of sampling units that are used for ordering about down the equipartition at actuating mechanism and subsides and carry out the layering sampling in the box, and is a plurality of through spring elastic connection between the sampling unit.

Preferably, actuating mechanism includes the fixed plate, fixed plate and both sides fixed frame board fixed connection, fixed mounting has the motor on the fixed plate, the output fixedly connected with lead screw of motor, be equipped with the screw thread section on the lower extreme outer wall of lead screw.

Preferably, the sampling unit comprises an inner cylinder body, the inner cylinder body is slidably connected with an outer cylinder body, an inner pipe body is fixedly connected to the inner side of the inner cylinder body, a threaded sleeve is fixedly connected to the top end of the inner pipe body, the threaded sleeve is fixedly connected with the inner cylinder body, and the threaded sleeve is in threaded connection with a threaded section on a lead screw.

Preferably, a plurality of first through holes distributed at equal intervals are formed in the outer wall of one side of the outer barrel, a first electromagnetic valve is arranged at the position of the first through hole, a second through hole corresponding to the first through hole is formed in the outer wall of one side of the inner barrel, and a second electromagnetic valve is arranged in the second through hole.

Preferably, the upper side and the lower side of the second through hole are provided with sealing rings fixedly sleeved outside the inner cylinder.

Preferably, the top of box is seted up and is used for the opening that the sample cell came in and go out, and the left side seted up on the fixed frame plate and be convenient for carry out the sample to the sample cell sample thief-proofer.

Preferably, a pressure sensor is fixedly mounted on the inner wall of the bottom of the outer cylinder body and is in signal connection with the motor.

Compared with the prior radioactive liquid waste treatment system technology, the utility model provides a radioactive liquid waste treatment system, which has the following beneficial effects:

1. according to the utility model, the inner wall of each decay box is provided with the outer cylinder, the inner side of the outer cylinder is provided with the sampling units which are settled in the box body and used for layered sampling, the screw rod is driven to rotate by starting the motor to work, and the inner cylinder can move downwards in the outer cylinder under the sliding limit of the outer cylinder and the inner cylinder, so that each sampling unit is settled downwards along the outer cylinder in sequence, the radioactivity degree of different liquid layers in each decay box can be analyzed, and the authenticity of collected data is improved;

2. according to the utility model, the pressure sensor is arranged on the inner side of the bottom of the inner cylinder body, when each sampling unit is settled on the bottom of the inner cylinder body, the sampling unit on the bottommost layer just touches the pressure sensor, the pressure sensor feeds back a signal to the motor, so that the motor stops working, each sampling unit is kept at a fixed position, a second through hole on each inner cylinder body is just aligned with a first through hole, a first electromagnetic valve and a second electromagnetic valve are conveniently opened, and a solution stored in each box body can permeate into the inner cylinder body through the first through hole and the second through hole, so that a sample is sampled;

3. according to the utility model, the sealing rings fixedly sleeved outside the inner cylinder body are arranged on the upper side and the lower side of the second through hole, so that the solution partition when the upper layer and the lower layer collect samples can be ensured, and the authenticity of the radioactive data of each layer of liquid in the collection box can be ensured;

4. after the sampling of the samples is finished, the first electromagnetic valve and the second electromagnetic valve are closed, the motor is started to rotate reversely, the uppermost sampling unit is lifted upwards through the thread relation between the thread sleeve on the uppermost sampling unit and the thread section of the screw rod, when the uppermost sampling unit is staggered from the thread section, the uppermost sampling unit does not move and reaches the position of the sampling port, the second electromagnetic valve on the sampling unit is opened for sampling operation, the thread sleeve on the next sampling unit just reaches the thread section of the screw rod, and further, when the screw rod rotates continuously, the sampling unit can continuously ascend to replace the position of the uppermost sampling unit.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

FIG. 1 is a schematic view of a radioactive waste liquid treatment system according to the present invention;

FIG. 2 is a schematic cross-sectional view of the box according to the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of a portion of the structure shown at B in FIG. 2 according to the present invention;

fig. 5 is a schematic diagram of a partial enlarged structure at C in fig. 2 according to the present invention.

In the figure: 1. a biodegradation tank; 2. a first decay tank; 3. a second decay tank; 4. a third decay tank; 5. a box body; 6. a drive mechanism; 7. fixing the frame plate; 8. an outer cylinder; 9. a spring; 10. a sampling unit; 11. a pressure sensor; 51. an opening; 61. a motor; 62. a fixing plate; 63. a lead screw; 64. a threaded segment; 71. a sampling port; 81. a first through hole; 82. a first solenoid valve; 101. an inner cylinder; 102. a seal ring; 103. a threaded sleeve; 104. a second through hole; 105. a second solenoid valve; 106. an inner tube body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a radioactive waste liquid treatment system, includes biodegradable tank 1, first decay case 2, second decay case 3, third decay case 4 and relevant pipeline, the radioactive sewage of relevant administrative or technical offices such as hospital nuclear medicine branch of academic or vocational study, PET gets into in the biodegradable tank 1, later emits into first decay case 2, second decay case 3, in the third decay case 4 in proper order respectively, decay case water is full to begin timing, radioactivity has attenuated to harmless degree when timing 90 days (10 half-lives of the radionuclide that decay time is the longest), discharges.

It should be noted that, first decay case 2, second decay case 3 and third decay case 4 all include box 5, two fixed frame plate 7 of top fixedly connected with of box 5, the opening 51 that is used for the sampling unit 10 to come in and go out is offered at the top of box 5, offer the sample connection 71 that is convenient for gather the sample to sampling unit 10 on the fixed frame plate 7 of left side and carry out the sample, sampling unit 10 rises out of the case by the opening 51 at box 5 top after gathering the sample, then take out the sample by the sample connection 71 of the fixed frame plate 7 of left side and carry out the radioactivity and detect.

It is worth understanding that, the inboard of two fixed frame plates 7 is provided with actuating mechanism 6, and actuating mechanism 6 includes fixed plate 62, fixed plate 62 and both sides fixed frame plate 7 fixed connection, and fixed mounting has motor 61 on the fixed plate 62, and the output fixedly connected with lead screw 63 of motor 61 is equipped with screw thread section 64 on the lower extreme outer wall of lead screw 63, and motor 61 during operation can drive lead screw 63 and rotate.

It should be noted that, the outer cylinder 8 is fixedly connected to the inner wall of the top of the box 5, a plurality of sampling units 10 for uniformly depositing in the box 5 under the driving of the driving mechanism 6 to perform layered sampling are arranged on the inner side of the outer cylinder 8, each sampling unit 10 includes an inner cylinder 101, the inner cylinder 101 is slidably connected to the outer cylinder 8, an inner cylinder 106 is fixedly connected to the inner side of the inner cylinder 101, a threaded sleeve 103 is fixedly connected to the top end of the inner cylinder 106, the threaded sleeve 103 is fixedly connected to the inner cylinder 101, the threaded sleeve 103 is in threaded connection with a threaded section 64 on the lead screw 63, when the threaded sleeve 103 on the inner cylinder 101 is located in the threaded section 64 of the lead screw 63, the inner cylinder 101 can move up and down in the outer cylinder 8 through the threaded relation between the threaded sleeve 103 and the threaded section 64 on the lead screw 63, and the sliding limitation on the inner cylinder 101 by the outer cylinder 8 is performed.

It is worth noting that a plurality of first through holes 81 distributed at equal intervals are formed in the outer wall of one side of the outer cylinder 8, a first electromagnetic valve 82 is arranged at the position of the first through hole 81, a second through hole 104 corresponding to the first through hole 81 is formed in the outer wall of one side of the inner cylinder 101, a second electromagnetic valve 105 is arranged in the second through hole 104, when each sampling unit 10 is settled to the position shown in fig. 1, the second through hole 104 in each inner cylinder 101 is just aligned with the first through hole 81, when sampling is needed, the first electromagnetic valve 82 and the second electromagnetic valve 105 can be opened, so that a solution stored in each box body 5 can permeate into the inner cylinder 101 through the first through hole 81 and the second through hole 104, and then a sample is taken.

Furthermore, the upper side and the lower side of the second through hole 104 are provided with the sealing rings 102 fixedly sleeved outside the inner cylinder 101, so that the solution separation when the upper layer and the lower layer collect samples can be ensured, and the authenticity of the radioactive data of each layer of liquid in the collection box 5 can be ensured.

More specifically, a plurality of sampling units 10 are elastically connected through springs 9, a pressure sensor 11 is fixedly mounted on the inner wall of the bottom of the outer cylinder 8, the pressure sensor 11 is in signal connection with a motor 61, when each sampling unit 10 is sunk to the position shown in fig. 1, the sampling unit 10 at the bottommost layer just touches the pressure sensor 11, the pressure sensor 11 feeds back a signal to the motor 61, and then the motor 61 stops working, so that each sampling unit 10 is kept at a fixed position.

The working principle and the using process of the utility model are as follows: when the radioactive waste liquid treatment system works, radioactive waste water of relevant departments such as hospital nuclear medicine department, PET and the like can enter the biodegradation tank 1 and then is discharged into the first decay tank 2, the second decay tank 3 and the third decay tank 4 in sequence, the decay tanks are full of water and begin to time, and the radioactivity is attenuated to harmless degree when the time is 90 days (10 half-lives of radionuclides with the longest decay time), and then the radioactive waste liquid is discharged;

when the radioactive dilution degree of the liquid in the first decay box 2, the second decay box 3 and the third decay box 4 needs to be detected, the motor 61 is started to work to drive the screw rod 63 to rotate, and the inner cylinder body 101 can move downwards in the outer cylinder body 8 under the sliding limit of the outer cylinder body 8 to the inner cylinder body 101 through the thread relation between the thread sleeve 103 and the thread section 64 of the screw rod 63, so that each sampling unit 10 sequentially sinks downwards along the outer cylinder body 8;

when each sampling unit 10 is sunk to the position shown in fig. 1, the sampling unit 10 at the bottommost layer just touches the pressure sensor 11, the pressure sensor 11 feeds back a signal to the motor 61, and then the motor 61 stops working, so that each sampling unit 10 is kept at a fixed position;

at the moment, the second through holes 104 on the inner cylinders 101 are just aligned with the first through holes 81, and when sampling is needed, the first electromagnetic valves 82 and the second electromagnetic valves 105 can be opened, so that the solution stored in each box body 5 can permeate into the inner cylinders 101 through the first through holes 81 and the second through holes 104, and then samples are taken;

after the sampling is completed, the first electromagnetic valve 82 and the second electromagnetic valve 105 are closed, the motor 61 is started to reversely rotate, the uppermost sampling unit 10 is lifted upwards through the thread relation between the thread sleeve 103 on the uppermost sampling unit 10 and the thread section 64 of the lead screw 63, when the uppermost sampling unit 10 is staggered from the thread section 64, the uppermost sampling unit 10 does not move and reaches the position of the sampling opening 71, the second electromagnetic valve 105 on the sampling unit 10 is opened, the sampling operation is performed, at this time, the thread sleeve 103 on the next sampling unit 10 just reaches the thread section 64 of the lead screw 63, and further, when the lead screw 63 continues to rotate, the sampling unit 10 can continue to ascend to replace the position of the uppermost sampling unit 10, and similarly, the sampling units 10 inside the inner cylinder 101 are all lifted to perform the sampling operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a radioactive liquid waste treatment system, includes biodegradable tank (1), first decay case (2), second decay case (3), third decay case (4) and relevant pipeline, its characterized in that: first decay case (2), second decay case (3) and third decay case (4) all include box (5), two fixed frame plate (7) of top fixedly connected with of box (5), two the inboard of fixed frame plate (7) is provided with actuating mechanism (6), the outer barrel of fixedly connected with (8) on the top inner wall of box (5), the inboard of outer barrel (8) is provided with a plurality of sampling unit (10) that are used for driving about down the equipartition subsides in box (5) and carry out the layering sampling at actuating mechanism (6), and is a plurality of pass through spring (9) elastic connection between sampling unit (10).

2. The radioactive liquid waste treatment system according to claim 1, wherein: actuating mechanism (6) are including fixed plate (62), fixed plate (62) and both sides fixed frame plate (7) fixed connection, fixed mounting has motor (61) on fixed plate (62), the output fixedly connected with lead screw (63) of motor (61), be equipped with screw thread section (64) on the lower extreme outer wall of lead screw (63).

3. A radioactive liquid waste treatment system according to claim 2, wherein: the sampling unit (10) comprises an inner cylinder body (101), the inner cylinder body (101) is connected with an outer cylinder body (8) in a sliding mode, an inner cylinder body (106) is fixedly connected to the inner side of the inner cylinder body (101), a threaded sleeve (103) is fixedly connected to the top end of the inner cylinder body (106), the threaded sleeve (103) is fixedly connected with the inner cylinder body (101), and the threaded sleeve (103) is in threaded connection with a threaded section (64) on a lead screw (63).

4. A radioactive liquid waste treatment system according to claim 3, wherein: set up first through-hole (81) that a plurality of equidistance distribute on one side outer wall of outer barrel (8), first through-hole (81) department is provided with first solenoid valve (82), set up on one side outer wall of interior barrel (101) with first through-hole (81) corresponding second through-hole (104), second through-hole (104) are provided with second solenoid valve (105).

5. The radioactive liquid waste treatment system according to claim 4, wherein: and the upper side and the lower side of the second through hole (104) are provided with sealing rings (102) fixedly sleeved outside the inner cylinder body (101).

6. The radioactive liquid waste treatment system according to claim 1, wherein: an opening (51) for the sampling unit (10) to come in and go out is formed in the top of the box body (5), and a sampling opening (71) convenient for sampling the sampling unit (10) to collect samples is formed in the fixing frame plate (7) on the left side.

7. A radioactive liquid waste treatment system according to claim 2, wherein: the bottom inner wall of the outer cylinder body (8) is fixedly provided with a pressure sensor (11), and the pressure sensor (11) is in signal connection with a motor (61).