A decay cell device

Abstract

The utility model belongs to radioactive waste liquid processing technical field especially, a kind of decay cell device, to the existing traditional decay cell solid impurities accumulation cleaning difficult, inner wall deposit influence decay and discharge, corrosive liquid pressure deformation difficult monitoring problem, present and propose the following scheme, including decay cell, the top of decay cell is fixedly connected by connecting pipe and is connected through filter tank, filter screen is equipped in the filter tank, the outer wall of the decay cell is equipped with monitoring assembly for monitoring the state of decay cell, solid impurities automatic discharge is realized by deslagging component, reduce manual intervention and reduce radiation risk;Cleaning anti-blocking component linkage drive cleaning frame and screw conveying rod, synchronous completion pool wall flushing and pipeline anti-blocking, improve maintenance efficiency;Monitoring assembly real-time monitoring pool body deformation and crack, form the collaborative protection system of automatic deslagging, high-efficiency cleaning, intelligent monitoring, guarantee processing continuity and operating safety.

Description

Technical Field

[0001] This utility model relates to the field of radioactive waste liquid treatment technology, and in particular to a decay pool device. Background Technology

[0002] In the process of radioactive waste treatment, decay pools are core equipment used to store and treat radioactive waste liquids, decaying them to a safe level before they are discharged.

[0003] However, existing decay pool devices have many problems in actual operation: First, solid impurities in radioactive waste liquid tend to accumulate on the filter device at the top of the decay pool. Traditional manual cleaning methods are not only inefficient, but also expose workers to a high risk of radiation exposure. Second, radioactive deposits easily adhere to the inner wall of the decay pool. Long-term accumulation not only affects the decay effect, but also causes blockages caused by residual solid particles or condensates during discharge, leading to poor discharge or even interruption, seriously affecting the continuity of the treatment process. At the same time, the decay pool is subjected to corrosive liquid pressure for a long time, and it is difficult to monitor the thinning or deformation of the wall in real time, posing a risk of leakage. Therefore, we propose a decay pool device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the difficulty in cleaning solid impurities accumulated in traditional decay pools, the impact of inner wall deposits on decay and discharge, and the difficulty in monitoring deformation caused by corrosive liquid pressure. Therefore, this invention proposes a decay pool device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A decay pool device includes a decay pool, the top of which is fixedly connected to and communicates with a filter pool via a connecting pipe, the filter pool is provided with a filter screen, and the outer wall of the decay pool is provided with a monitoring component for monitoring the state of the decay pool, and also includes;

[0007] The slag discharge assembly includes a first spiral conveyor rod disposed in the filter tank, the first spiral conveyor rod being in contact with the inner wall of the filter screen and driven by a first motor;

[0008] The cleaning and anti-clogging assembly includes a cleaning frame rotatably connected to the decay pool via a rotating shaft. The cleaning frame is connected to a diversion pipe equipped with a nozzle and a second spiral conveying rod. The second spiral conveying rod is driven by a second motor and is connected to the rotating shaft via a gear set. The bottom of the decay pool is connected to a discharge pipe via a connecting pipe, and the discharge pipe contains the second spiral conveying rod.

[0009] In one possible design, the slag discharge assembly includes two fixed cylinders symmetrically arranged on the filter tank. The two ends of the filter screen are fixedly connected to the two fixed cylinders respectively. The first spiral conveying rod extends into the two fixed cylinders. One fixed cylinder is connected to the liquid inlet pipe, and the other fixed cylinder is connected to the solid residue collection box through the slag discharge pipe.

[0010] In one possible design, the slag discharge pipe penetrates the side wall of the slag discharge box and extends into the interior of the solid residue collection box, which is detachably placed inside the slag discharge box.

[0011] In one possible design, the diversion pipe of the cleaning and anti-clogging component is connected to an external cleaning liquid source through an inlet pipe, the nozzle is set at an angle on the outlet pipes on both sides of the cleaning frame, and the surface of the cleaning frame is provided with scrapers and brushes that contact the inner wall of the decay pool.

[0012] In one possible design, the second helical conveyor rod is sealed and rotates through the bottom of the decay pool and extends into the discharge pipe, and the gear set includes two bevel gears respectively fixed on the rotating shaft and the second helical conveyor rod.

[0013] In one possible design, the monitoring component includes two fixed rings fitted onto the outer wall of the decay cell, with three threaded rods symmetrically arranged between the fixed rings and driven by a third motor. Each threaded rod is threadedly connected to a movable ring, and the inner wall of the movable ring is equipped with an ultrasonic sensor and a high-definition visual sensor.

[0014] In one possible design, the ultrasonic sensor and the high-definition vision sensor are alternately arranged and installed along the circumferential direction of the moving ring, and the third motor is connected to the threaded rod via a reduction mechanism.

[0015] In one possible design, both the connecting pipe and the connecting tube are equipped with electric valves, and the control terminals of the electric valves are connected to a central controller.

[0016] In one possible design, the cleaning frame forms a dual-support rotating structure with the decay cell via two rotating shafts, and a wear-resistant sealing ring is provided at the contact point between the rotating shaft and the decay cell.

[0017] In this application, firstly, radioactive waste liquid enters the filtration tank through the inlet pipe. The filter screen intercepts solid impurities in the waste liquid. Utilizing the sieving effect of the filter screen, solid particles cannot pass through the mesh. During the filtration process, the first motor is started, which drives the first spiral conveyor rod to rotate. The first spiral conveyor rod contacts the inner wall of the filter screen, pushing the solid impurities along the filter screen to one end. Based on the spiral conveying principle, the rotation of the spiral blades pushes the impurities to move and discharges them into the solid residue collection box through the slag discharge pipe, completing the automatic slag discharge process. The filtered wastewater then enters the interior of the decay tank through the connecting pipe for decay treatment.

[0018] When the decay pool needs to be cleaned, the second motor is started, which drives the second spiral conveyor to rotate. At the same time, through the meshing transmission of bevel gears, the rotating shaft under the cleaning frame is driven to rotate, thereby causing the cleaning frame to rotate. The brushes and scrapers on the cleaning frame physically clean the inner wall of the decay pool, scraping off the radioactive deposits attached to the inner wall. Meanwhile, the cleaning liquid enters the diversion pipe through the inlet pipe, and then flows to the nozzles through two outlet pipes. The nozzles spray the cleaning liquid onto the inner wall of the decay pool to enhance the cleaning effect. During the discharge process, the second spiral conveyor continues to rotate, pushing the material in the discharge pipe to prevent solid impurities from accumulating and clogging the discharge pipe.

[0019] During the wastewater decay process within the decay tank, the monitoring components operate intermittently. Specifically, three third motors start synchronously, driving corresponding threaded rods to rotate. These rods, in turn, cause a moving ring threaded to the threaded rods to move up and down circumferentially along the outer wall of the decay tank. Ultrasonic sensors and high-definition vision sensors on the moving ring perform real-time monitoring of the outer wall of the decay tank during this movement. The ultrasonic sensors transmit and receive ultrasonic signals, analyze signal reflection, and detect defects such as cracks and voids within the tank wall. The high-definition vision sensors capture images of the tank wall surface and use image recognition algorithms to detect anomalies such as cracks and deformations, thus achieving comprehensive monitoring of the decay tank's condition.

[0020] Beneficial effects: In this utility model, the decay cell device realizes the automatic collection and discharge of solid impurities through the slag discharge component, reducing manual intervention, reducing the risk of radiation exposure for workers, and improving slag discharge efficiency.

[0021] In this utility model, the decay pool device has a cleaning and anti-clogging component that uses a second motor linkage design to synchronously drive the cleaning frame to rotate, achieving physical flushing and spray cleaning, and driving the spiral conveyor rod to continuously push the discharge, forming a synergistic effect of efficient cleaning of the inner wall and anti-clogging of the pipeline, significantly improving the maintenance efficiency of the decay pool and ensuring the continuity of the processing flow.

[0022] In this utility model, the decay cell device, through the monitoring components, realizes real-time detection of the decay cell from all directions and multiple angles, and can promptly detect potential problems such as minute deformations and cracks in the cell wall, providing a reliable guarantee for the safe operation of the decay cell.

[0023] The slag discharge component enables automatic removal of solid impurities, reducing manual intervention and lowering radiation risks; the cleaning and anti-clogging component drives the cleaning rack and spiral conveyor rod in tandem to simultaneously flush the pool walls and prevent pipe blockage, improving maintenance efficiency; the monitoring component monitors pool deformation and cracks in real time, forming a collaborative protection system of automated slag discharge, efficient cleaning, and intelligent monitoring to ensure continuous processing and operational safety. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a decay cell device proposed in this utility model;

[0025] Figure 2 This is a top-view three-dimensional structural diagram of the filter tank of a decay tank device proposed in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the fixed cylinder and the first spiral conveying rod of a decay pool device proposed in this utility model, which is partially exploded.

[0027] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the decay cell of the decay cell device proposed in this utility model;

[0028] Figure 5 This is a partial cross-sectional three-dimensional structural schematic diagram of the cleaning frame of a decay pool device proposed in this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the fixing ring of a decay cell device proposed in this utility model.

[0030] In the diagram: 1. Decay tank; 2. Filter tank; 3. Slag discharge box; 4. Solid residue collection box; 5. Fixed cylinder; 6. Filter screen; 7. First spiral conveyor rod; 8. First motor; 9. Cleaning frame; 10. Diverter pipe; 11. Water outlet pipe; 12. Nozzle; 13. Water inlet pipe; 14. Discharge pipe; 15. Second spiral conveyor rod; 16. Bevel gear; 17. Second motor; 18. Fixed ring; 19. Threaded rod; 20. Moving ring; 21. Ultrasonic sensor; 22. High-definition vision sensor; 23. Third motor; 24. Electric valve. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example 1: Refer to Figure 1-6 A decay tank includes a decay tank 1, the top of which is fixedly connected and communicates with a filter tank 2 via a connecting pipe. The filter tank 2 is equipped with a filter screen 6, which can perform preliminary filtration of the liquid flowing into the decay tank 1, separating solid impurities. A monitoring component is installed on the outer wall of the decay tank 1 to monitor its status in real time, ensuring the safe and stable operation of the device.

[0033] The slag discharge assembly includes a first spiral conveyor 7 disposed within the filter tank 2. This spiral conveyor 7 contacts the inner wall of the filter screen 6 and is driven by a first motor 8. Two fixed cylinders 5 are symmetrically arranged on the filter tank 2, with both ends of the filter screen 6 fixedly connected to the two fixed cylinders 5 respectively, forming a stable support structure. The first spiral conveyor 7 extends into the two fixed cylinders 5. One fixed cylinder 5 is connected to an inlet pipe for introducing the liquid to be treated, and the other fixed cylinder 5 is connected to a solid residue collection box 4 via a slag discharge pipe. The slag discharge pipe penetrates the side wall of the slag discharge box 3 and extends into the solid residue collection box 4, which is detachably placed inside the slag discharge box 3. When the first motor 8 drives the first spiral conveyor 7 to rotate, solid impurities on the filter screen are conveyed along the inclined filter screen 6 to the slag discharge pipe, and then discharged into the solid residue collection box 4. Because the solid residue collection box 4 is detachable, it facilitates regular cleaning of the collected solid residue, reduces manual labor intensity, and improves the practicality of the device.

[0034] The cleaning and anti-clogging assembly includes a cleaning frame 9 rotatably connected to the decay tank 1 via a rotating shaft. The cleaning frame 9 forms a double-fulcrum rotational support structure with the decay tank 1 via two rotating shafts, upper and lower. Wear-resistant sealing rings are provided at the contact points between the rotating shafts and the decay tank 1, ensuring the stability of the cleaning frame 9's rotation and effectively preventing liquid leakage. The cleaning frame 9 is connected to a diversion pipe 10 with nozzles 12 and a second spiral conveying rod 15. The diversion pipe 10 is connected to an external cleaning liquid source via an inlet pipe 13. The nozzles 12 are angled and positioned on the outlet pipes 11 on both sides of the cleaning frame 9, enabling multi-angle spraying of cleaning liquid for comprehensive cleaning of the inner wall of the decay tank 1. The surface of the cleaning frame 9 is also equipped with scrapers and brushes that contact the inner wall of the decay tank 1. When the cleaning frame 9 rotates, the scrapers and brushes effectively remove dirt and impurities adhering to the inner wall.

[0035] The second spiral conveyor rod 15 is connected to the rotating shaft via a gear set, which includes two bevel gears 16 fixed to the rotating shaft and the second spiral conveyor rod 15, respectively. The second spiral conveyor rod 15 is driven by a second motor 17 and rotates through the bottom of the decay tank 1, extending into the discharge pipe 14. The bottom of the decay tank 1 is connected to the discharge pipe 14 via a connecting pipe, and the second spiral conveyor rod 15 is located inside the discharge pipe 14. When the second motor 17 operates, it drives the rotating shaft to rotate via the gear set, causing the cleaning frame 9 to rotate. Simultaneously, the second spiral conveyor rod 15 rotates, conveying the treated liquid and cleaned impurities from the decay tank 1 to the discharge pipe 14 for discharge. This design achieves coordinated cleaning and conveying, effectively preventing blockage at the bottom of the decay tank 1 and the discharge pipe 14, thus improving the operating efficiency and reliability of the device.

[0036] The monitoring component includes two fixed rings 18 fitted onto the outer wall of the decay pool 1. Three threaded rods 19, driven by a third motor 23, are symmetrically arranged between the two fixed rings 18. Moving rings 20 are threadedly connected to the threaded rods 19. Ultrasonic sensors 21 and high-definition vision sensors 22 are installed on the inner wall of the moving rings 20, and these sensors are alternately arranged along the circumference of the moving rings 20. The third motor 23 is connected to the threaded rods 19 via a reduction mechanism. When the third motor 23 rotates, it drives the threaded rods 19 to rotate, causing the moving rings 20 to move up and down along the threaded rods 19. During this movement, the ultrasonic sensors and high-definition vision sensors on the moving rings perform real-time monitoring of the outer wall of the decay pool 1. The ultrasonic sensor 21 transmits and receives ultrasonic signals, analyzes the signal reflection, and detects whether there are defects such as cracks or voids inside the pool wall; the high-definition vision sensor 22 captures images of the pool wall surface and uses image recognition algorithms to detect whether there are abnormalities such as cracks or deformations on the surface, thereby achieving comprehensive monitoring of the state of the decay pool 1.

[0037] This application can be used in the field of radioactive waste treatment technology, or in other fields applicable to this application.

[0038] Example 2: Reference Figure 1-3 An improvement upon Embodiment 1 is provided: a decay cell device applied to the field of radioactive waste treatment technology. Electric valves 24 are installed on both the connecting pipe and the link pipe, with the control terminals of the electric valves 24 connected to a central controller. The central controller can automatically control the opening and closing of the electric valves 24 based on signals from the monitoring components, regulating the inflow and outflow of liquid to achieve automated operation of the device. For example, when a large amount of solid impurities is detected in the filter tank 2, the central controller can control the first motor 8 to start for sludge removal; when a large amount of fouling is detected on the inner wall of the decay tank 1, it controls the second motor 17 and the external cleaning liquid source to start for cleaning. This automated control method improves the intelligence level of the device, reduces manual intervention, and lowers operating costs.

[0039] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 8, the second motor 17 and the third motor 23 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A decay cell device, comprising a decay cell (1), characterized in that: The top of the decay pool (1) is fixedly connected to and connected to the filter pool (2) through a connecting pipe. The filter pool (2) is equipped with a filter screen (6). The outer wall of the decay pool (1) is equipped with a monitoring component for monitoring the state of the decay pool (1). The slag discharge assembly includes a first spiral conveying rod (7) disposed in the filter tank (2), the first spiral conveying rod (7) being in contact with the inner wall of the filter screen (6) and driven by a first motor (8); The cleaning and anti-clogging assembly includes a cleaning frame (9) rotatably connected to the decay pool (1) via a rotating shaft. The cleaning frame (9) is connected to a diversion pipe (10) with a nozzle (12) and a second spiral conveying rod (15). The second spiral conveying rod (15) is connected to the rotating shaft via a gear set and driven by a second motor (17). The bottom of the decay pool (1) is connected to a discharge pipe (14) via a connecting pipe. The discharge pipe (14) contains the second spiral conveying rod (15). The slag discharge assembly includes two fixed cylinders (5) symmetrically arranged on the filter pool (2). The filter screen (6) is fixedly connected to the two fixed cylinders (5) at both ends. The first spiral conveying rod (7) extends into the two fixed cylinders (5). One fixed cylinder (5) is connected to the liquid inlet pipe, and the other fixed cylinder (5) is connected to the solid residue collection box (4) via the slag discharge pipe.

2. The decay cell device according to claim 1, characterized in that: The slag discharge pipe penetrates the side wall of the slag discharge box (3) and extends into the solid residue collection box (4), which is detachably placed inside the slag discharge box (3).

3. The decay cell device according to claim 1, characterized in that: The diversion pipe (10) of the cleaning and anti-clogging component is connected to the external cleaning liquid source through the water inlet pipe (13). The nozzle (12) is set at an angle on the water outlet pipe (11) on both sides of the cleaning rack (9). The surface of the cleaning rack (9) is provided with scrapers and brushes that contact the inner wall of the decay pool (1).

4. The decay cell device according to claim 3, characterized in that: The second spiral conveyor rod (15) is sealed and rotates through the bottom of the decay pool (1) and extends into the discharge pipe (14). The gear set includes two bevel gears (16) respectively fixed on the rotating shaft and the second spiral conveyor rod (15).

5. The decay cell device according to claim 1, characterized in that: The monitoring component includes two fixed rings (18) fitted on the outer wall of the decay pool (1). Three threaded rods (19) driven by a third motor (23) are symmetrically arranged between the fixed rings (18). A movable ring (20) is threadedly connected to the threaded rod (19). An ultrasonic sensor (21) and a high-definition vision sensor (22) are provided on the inner wall of the movable ring (20).

6. The decay cell device according to claim 5, characterized in that: The ultrasonic sensor (21) and the high-definition vision sensor (22) are arranged alternately along the circumference of the moving ring (20), and the third motor (23) is connected to the threaded rod (19) through a reduction mechanism.

7. The decay cell device according to claim 1, characterized in that: Both the connecting pipe and the connecting tube are equipped with electric valves (24), and the control end of the electric valves (24) is connected to the central controller.

8. The decay cell device according to any one of claims 1-7, characterized in that: The cleaning frame (9) forms a double-support rotating structure with the decay cell (1) through two upper and lower rotating shafts. A wear-resistant sealing ring is provided at the contact point between the rotating shaft and the decay cell (1).

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