Nuclear power station hazardous waste temporary repository

Abstract

The utility model relates to the technical field of temporary storage of hazardous wastes in nuclear power stations, and particularly discloses a temporary storage warehouse for hazardous wastes in nuclear power stations, which comprises a storage warehouse, first sliding block movable frames are mounted on two sides of the top of the storage warehouse, first sliding grooves are formed in the first sliding block movable frames, and first driving devices are mounted at one ends of the first sliding grooves. According to the storage warehouse, a forklift does not need to enter the storage warehouse, workers are prevented from entering the storage warehouse to operate, equipment in the storage warehouse can be operated without opening a door, after the door is opened, only a packaging bag on the forklift needs to be hung on a hook, then the packaging bag is moved away through the equipment in the storage warehouse, and then the door is closed, so that the risk of radiation irradiation is avoided; the whole operation process is short in time and rapid and convenient to operate, a worker can control the waste packaging bags in the storage warehouse to move and store outside the storage warehouse, the waste packaging bags in the storage warehouse can also be moved out, and flexibility and safety are high.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary storage of hazardous wastes in nuclear power plants, in particular to a temporary storage warehouse for hazardous wastes in nuclear power plants. Background Art

[0002] Unlike radioactive hazardous waste (LDW), non-radioactive hazardous waste, although generated during nuclear power plant operations, is non-radioactive and can be collected, stored, transported, and disposed of like general hazardous waste. Nuclear power plant operations generate large quantities of hazardous waste, and if not promptly removed, these wastes pose a risk to the stable operation of the power plant. Hazardous waste is continuously generated during power plant operations, and the frequent entry and exit procedures for evidence and the storage of hazardous waste are time-consuming and laborious. Therefore, most hazardous waste generated on-site is often stored on-site. If pollutants are improperly stored and leak, they pose a threat to the safety of workers and seriously pollute the environment. Nuclear power plants need to control the safety of hazardous waste from the source, so corresponding temporary storage devices for hazardous waste need to be set up at the hazardous waste generation site or the nuclear power plant control area. However, existing temporary storage devices have many defects: 1: Workers are required to enter the temporary storage device to transport the hazardous waste to a designated location, or use a forklift to move the hazardous waste to a designated location. Regardless of the operation, workers need to enter the temporary storage device, which increases safety risks; 2: Existing temporary storage devices cannot automatically weigh hazardous waste, cannot store liquids flowing out of hazardous waste, cannot monitor radiation doses and detect air quality; 3: Existing temporary storage devices cannot perform ventilation and air purification, which easily causes toxic and harmful gases to escape. For this purpose, a temporary storage facility for hazardous waste in nuclear power plants is provided. Utility Model Content

[0003] The purpose of the utility model is to provide a temporary storage for hazardous wastes in nuclear power plants in view of the defects of the prior art, so as to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temporary storage warehouse for hazardous wastes in a nuclear power plant, comprising a storage warehouse, wherein first slider movable frames are installed on both sides of the top of the storage warehouse, a first slide groove is provided on the first slider movable frame, a first driving device is installed at one end of the first slide groove, a first screw rod is connected to the first driving device, a first slider is threadedly connected to the first screw rod, a second slider movable frame is installed at the top of the first slider, a second slide groove is provided on the second slider movable frame, a second driving device is installed at one end of the second slide groove, a second screw rod is connected to the second driving device, a second slider is threadedly connected to the second screw rod, a rectangular groove is provided at the bottom of the second slide groove for allowing an electric telescopic rod to move, the top of the electric telescopic rod is installed on the bottom of the second slider, and a hook is installed at the bottom of the telescopic rod of the electric telescopic rod;

[0005] An electric door track groove is installed on the front of the storage, an electric door is installed on the electric door track groove, a control box is installed on the electric door, a top cover is installed on the top of the storage, a lighting lamp is installed on the bottom of the top cover, and an alarm is installed on the top of the top cover;

[0006] A hazardous waste placement plate is installed at the bottom of the interior of the storage tank, and mutually intersecting guide grooves are provided on the hazardous waste placement plate. An air purification device is installed on the back of the storage tank, and ventilation ducts are installed on both sides of the storage tank.

[0007] As an optimal technical solution of the present invention, the control box is equipped with control buttons, a display screen and a camera A; the electric door track groove is installed on the storage warehouse by bolts, and two third slide grooves are provided inside the electric door track groove, and a third driving device is installed at one end of the third slide groove, and a third screw rod is connected to the third driving device, and a third slider is threadedly connected to the third screw rod. The top and bottom of the electric door are both provided with a third slider connecting groove for inserting the third slider, and the third driving device drives the third screw rod to rotate to realize the movement of the electric door in the electric door track groove.

[0008] As an optimal technical solution of the present invention, a radiation dose detection sensor, a gas monitoring sensor, and a camera B are installed on the inner wall of the storage warehouse. The radiation dose detection sensor and the gas monitoring sensor are electrically connected to the alarm and the display screen on the control box through the controller, and the camera B is electrically connected to the display screen through the controller.

[0009] As a preferred technical solution of the present invention, a fire hydrant is installed on the side of the storage tank, and the bottom of the diversion trough is connected to the waste liquid recovery tank through a liquid infusion pipeline.

[0010] As a preferred technical solution of the present invention, a pressure sensor is installed at the bottom of the hazardous waste placement plate, and the pressure sensor is electrically connected to the display screen on the control box through a controller.

[0011] As a preferred technical solution of the present utility model, the first drive device, the second drive device and the third drive device are all composed of a motor and a reduction gearbox, the motor is mounted on the reduction gearbox by bolts, the reduction gearbox on the first drive device is connected to the first screw rod, one end of the first screw rod is connected to the bearing at the end of the first slide groove, the reduction gearbox on the second drive device is connected to the second screw rod, one end of the second screw rod is connected to the bearing at the end of the second slide groove, the reduction gearbox on the third drive device is connected to the third screw rod, one end of the third screw rod is connected to the bearing at the end of the third slide groove.

[0012] As a preferred technical solution of the present invention, the materials of the storage warehouse and the electric door are both radiation-proof materials.

[0013] As a preferred technical solution of the present invention, the control box is electrically connected to the first drive device, the second drive device, the third drive device, the electric telescopic rod, the lighting lamp and the air purification device respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the storage does not require a forklift to enter, avoiding the need for staff to enter the storage to operate, and the internal equipment of the storage can be operated without opening the door. After opening the door, it is only necessary to hang the packaging bag on the forklift on the hook, and then remove the packaging bag through the internal equipment of the storage, and then close the door, thereby avoiding the risk of radiation exposure. The entire operation process is short and the operation is fast and convenient. Moreover, the staff can control the movement and storage of waste packaging bags inside the storage from outside the storage, and can also remove each waste packaging bag in the storage. It has strong flexibility and safety, and does not require staff to enter the storage to operate. Moreover, the storage can automatically weigh the temporarily stored waste, and can also perform radiation dose monitoring and air quality detection; it effectively reduces the pollution risk of hazardous waste.

[0015] The storage warehouse is also equipped with a ventilation system and an air purification system to make the air inside the storage warehouse cleaner. The liquid flowing out of the waste can also be collected and stored, making it very convenient to use overall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the first slider movable frame and the second slider movable frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the bottom structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the disassembled structure of the top cover of the utility model;

[0021] Figure 6 This is a schematic diagram of the end face structure of the utility model;

[0022] Figure 7 This is one of the disassembled structural diagrams of the electric door and the electric door track groove of the utility model;

[0023] Figure 8 This is the second schematic diagram of the disassembled structure of the electric door and the electric door track groove of the present utility model;

[0024] Figure 9 This is the third schematic diagram of the disassembled structure of the electric door and the electric door track groove of the present utility model.

[0025] In the figure: 1. Storage warehouse; 2. Electric door; 201. Third slider connecting groove; 3. Control box; 31. Operation button; 32. Display screen; 33. Camera A; 4. Electric door track groove; 401. Third screw rod; 402. Third slider; 403. Third drive device; 404. Third slide; 5. Hazardous waste placement plate; 51. Diversion trough; 52. Waste liquid recovery box; 6. Fire hydrant; 7. Alarm; 8. Ventilation duct; 9. Top cover; 901. Lighting; 10. Air purification device; 11. First slider movable frame; 1101. First drive device; 1102. First slider; 1103. First screw rod; 12. Second slider movable frame; 1201. Second drive device; 1202. Second screw rod; 1203. Second slider; 13. Electric telescopic rod; 14. Hook; 15. Camera B; 16. Radiation dose detection sensor; 17. Gas monitoring sensor. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0027] Example: See Figure 1-9The utility model provides a technical solution: a temporary storage warehouse for hazardous wastes in a nuclear power plant, comprising a storage warehouse 1, wherein first slider movable frames 11 are installed on both sides of the top of the storage warehouse 1, a first slide groove is provided on the first slider movable frame 11, a first driving device 1101 is installed at one end of the first slide groove, a first screw rod 1103 is connected to the first driving device 1101, a first slider 1102 is threadedly connected to the first screw rod 1103, a second slider movable frame 12 is installed at the top of the first slider 1102, a second slider movable frame 12 is provided with a second slide groove, a second driving device 1201 is installed at one end of the second slide groove, a second screw rod 1202 is connected to the second driving device 1201, a second slider 1203 is threadedly connected to the second screw rod 1202, a rectangular groove is provided at the bottom of the second slide groove for allowing an electric telescopic rod 13 to move, the top of the electric telescopic rod 13 is installed on the bottom of the second slider 1203, and a hook 14 is installed at the bottom of the telescopic rod of the electric telescopic rod 13 for conveniently hanging a waste packaging bag;

[0028] like Figure 1-2 As shown, an electric door track groove 4 is installed on the front of the storage warehouse 1, an electric door 2 is installed on the electric door track groove 4, a control box 3 is installed on the electric door 2, a top cover 9 is installed on the top of the storage warehouse 1, a lighting lamp 901 is installed at the bottom of the top cover 9 to facilitate viewing by the camera, and an alarm 7 is installed on the top of the top cover 9 to sound an alarm to remind the staff;

[0029] like Figure 1 and 3 As shown, a hazardous waste placement plate 5 is installed at the bottom end of the interior of the storage reservoir 1, and the hazardous waste placement plate 5 is provided with mutually intersecting guide grooves 51. An air purification device 10 is installed on the back of the storage reservoir 1, and ventilation ducts 8 are installed on both sides of the storage reservoir 1. A fan is installed in the ventilation duct 8 to achieve ventilation.

[0030] like Figure 1 、 Figure 8-9 As shown, the control box 3 is equipped with a control button 31, a display screen 32 and a camera A33; the electric door track groove 4 is installed on the storage warehouse 1 by bolts, and two third slide grooves 404 are provided inside the electric door track groove 4, and a third driving device 403 is installed at one end of the third slide groove 404, and a third screw rod 401 is connected to the third driving device 403, and a third slider 402 is threadedly connected to the third screw rod 401. The top and bottom of the electric door 2 are provided with a third slider connecting groove 201 for inserting the third slider 402, and the third driving device 403 drives the third screw rod 401 to rotate to realize the movement of the electric door 2 in the electric door track groove 4, thereby realizing the opening or closing of the electric door 2. The electric door 2 opens when the motor rotates forward, and closes when the motor reverses.

[0031] like Figure 2As shown, a radiation dose detection sensor 16, a gas monitoring sensor 17, and a camera B15 are installed on the inner wall of the storage warehouse 1. The radiation dose detection sensor 16 and the gas monitoring sensor 17 are electrically connected to the alarm 7 and the display screen 32 on the control box 3 through the controller. The camera B15 is electrically connected to the display screen 32 through the controller. The use of the camera B15 allows the staff to stand outside the storage warehouse 1 and can intuitively see the internal situation of the storage warehouse 1 through the display screen 32, which is also convenient for the staff to operate the equipment inside the storage warehouse 1. The radiation dose detection sensor 16 and the gas monitoring sensor 17 detect the environment inside the storage warehouse 1 and can transmit the information to the alarm 7 and the display screen 32.

[0032] like Figure 1 and 4 As shown, a fire hydrant 6 is installed on the side of the storage tank 1, and the bottom of the diversion trough 51 is connected to the waste liquid recovery tank 52 through the liquid infusion pipe 53. The diversion trough 51 is used to guide the liquid flowing out of the waste into the waste liquid recovery tank 52 for storage.

[0033] A pressure sensor is installed at the bottom of the hazardous waste placement plate 5. The pressure sensor is electrically connected to the display screen 32 on the control box 3 through the controller. The pressure sensor can detect the pressure values ​​before and after the hazardous waste is placed, which facilitates the calculation of the weight of the hazardous waste.

[0034] The first drive device 1101, the second drive device 1201 and the third drive device 403 are all composed of a motor and a reduction gearbox. The motor is installed on the reduction gearbox by bolts. The reduction gearbox on the first drive device 1101 is connected to the first screw rod 1103, and one end of the first screw rod 1103 is connected to the bearing at the end of the first slide groove. The reduction gearbox on the second drive device 1201 is connected to the second screw rod 1202, and one end of the second screw rod 1202 is connected to the bearing at the end of the second slide groove. The reduction gearbox on the third drive device 403 is connected to the third screw rod 401, and one end of the third screw rod 401 is connected to the bearing at the end of the third slide groove 404.

[0035] The materials of the storage warehouse 1 and the electric door 2 are all radiation-proof materials with high radiation-proof performance.

[0036] The control box 3 is electrically connected to the first drive device 1101, the second drive device 1201, the third drive device 403, the electric telescopic rod 13, the lighting lamp 901 and the air purification device 10 respectively. The control box 3 controls the operation of the motors on the first drive device 1101, the second drive device 1201 and the third drive device 403. At the same time, it can also control the electric telescopic rod 13, the lighting lamp 901 and the fan in the air purification device 10 to be powered on.

[0037] Working principle: A temporary storage warehouse for hazardous waste from a nuclear power plant. When in use, the staff uses a forklift to fork the hazardous waste from the nuclear power plant to the door of the storage warehouse, and then uses the camera A33 to perform face recognition. When the recognition is successful, the controller in the control box 3 controls the motor on the third drive device 403 to energize, thereby driving the third screw rod 401 to rotate, realizing the automatic opening of the electric door 2, and then the control button 31 on the control box 3 controls the motors on the first drive device 1101 and the second drive device 1201 and the electric telescopic rod 13 to work respectively. The first The motor on the driving device 1101 drives the first screw rod 1103 to rotate around the bearing, so that the first slider 1102 on the first screw rod 1103 moves in the first slide groove, thereby driving the second slider movable frame 12 to move in the Y direction on the top of the first slider movable frame 11, and the motor on the second driving device 1201 drives the second screw rod 1202 to rotate around the bearing, so that the second slider 1203 on the second screw rod 1202 moves in the second slide groove, thereby driving the electric telescopic rod 13 to move on the X axis, and the electric telescopic rod 13 drives The hook 14 moves up and down, thereby driving the hook 14 to move on the Y axis, thereby moving the hook 14 at the bottom of the electric telescopic rod 13 to the door. The entire operation can be performed before the electric door 2 is opened. The camera B15 and the display screen 32 can be connected to see the entire interior of the storage warehouse 1. When the hook 14 reaches the designated position, the electric door 2 is also opened. Then the forklift forks the nuclear power plant hazardous waste into the storage warehouse 1, and then hangs the hook 14 on the nuclear power plant hazardous waste packaging bag. The electric telescopic rod 13 is retracted upward to lift the nuclear power plant hazardous waste to a suitable position. Height, then the forklift moves out of the storage warehouse 1, closes the electric door 2, and observes the vacant position in the storage warehouse 1 through the display screen 32. Then, the control button 31 is used to control the hook 14 to realize the movement of the X, Y and Z axes, so as to place the nuclear power plant hazardous waste into the appropriate position of the hazardous waste placement plate 5. The bottom of the hazardous waste placement plate 5 uses a pressure sensor to detect the gravity after the nuclear power plant hazardous waste is placed, so as to calculate the weight of the nuclear power plant hazardous waste and display it on the display screen 32. The display screen 32 shows the gravity before and after the placement, so the weight of the stored waste can be obtained by subtracting the two numbers;

[0038] After the hazardous waste from the nuclear power plant is stored, the remaining liquid is diverted through the diversion trough 51 and then transported to the waste liquid recovery tank 52 for storage through the liquid delivery pipe 53; the radiation dose detection sensor 16 is used to monitor the radiation dose in the warehouse, and an alarm signal is issued when the dose exceeds the threshold; the gas monitoring sensor 17 is used to monitor the changes in the air in the temporary storage warehouse in real time, and monitor and alarm for sudden changes in the concentration of toxic and harmful gases; all alarms are realized through the alarm 7, and the display screen 32 also displays the specific detection value;

[0039] The storage warehouse 1 is provided with a ventilation duct 8, and a fan is provided in the ventilation duct 8 to realize the circulation of air in the storage warehouse 1. An air purification device 10 is also installed, and a dust collector is provided inside the air purification device 10 to adsorb and remove dust from the gas generated in the warehouse when the air is updated to prevent the escape of toxic and harmful gases.

[0040] The above embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A temporary storage facility for hazardous wastes from a nuclear power plant, comprising a storage facility (1), characterized in that: A first slider movable frame (11) is installed on both sides of the top of the storage tank (1), a first slide groove is provided on the first slider movable frame (11), a first driving device (1101) is installed at one end of the first slide groove, a first screw rod (1103) is connected to the first driving device (1101), a first slider (1102) is threadedly connected to the first screw rod (1103), a second slider movable frame (12) is installed on the top of the first slider (1102), and a first slider movable frame (12) is installed on the second slider movable frame (12). A second chute is provided, a second driving device (1201) is installed at one end of the second chute, a second screw rod (1202) is connected to the second driving device (1201), a second slider (1203) is threadedly connected to the second screw rod (1202), a rectangular groove for allowing the electric telescopic rod (13) to move is provided at the bottom of the second chute, the top of the electric telescopic rod (13) is installed on the bottom of the second slider (1203), and a hook (14) is installed at the bottom of the telescopic rod of the electric telescopic rod (13); An electric door track groove (4) is installed on the front of the storage warehouse (1), an electric door (2) is installed on the electric door track groove (4), a control box (3) is installed on the electric door (2), a top cover (9) is installed on the top of the storage warehouse (1), a lighting lamp (901) is installed on the bottom of the top cover (9), and an alarm (7) is installed on the top of the top cover (9); A hazardous waste placement plate (5) is installed at the bottom of the interior of the storage reservoir (1), and mutually intersecting guide grooves (51) are provided on the hazardous waste placement plate (5). An air purification device (10) is installed on the back of the storage reservoir (1), and ventilation ducts (8) are installed on both sides of the storage reservoir (1).

2. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 1, characterized in that: The control box (3) is equipped with a control button (31), a display screen (32) and a camera A (33); the electric door track groove (4) is installed on the storage warehouse (1) by means of bolts; two third slide grooves (404) are provided inside the electric door track groove (4); one end of the third slide groove (404) is equipped with a third driving device (403); the third driving device (403) is connected with a third screw rod (401); the third screw rod (401) is threadedly connected with a third slider (402); the top and bottom of the electric door (2) are both equipped with third slider connection grooves (201) for inserting the third slider (402); the third driving device (403) drives the third screw rod (401) to rotate to realize the movement of the electric door (2) in the electric door track groove (4).

3. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 2, characterized in that: A radiation dose detection sensor (16), a gas monitoring sensor (17), and a camera B (15) are installed on the inner wall of the storage warehouse (1). The radiation dose detection sensor (16) and the gas monitoring sensor (17) are electrically connected to the alarm (7) and the display screen (32) on the control box (3) through the controller, and the camera B (15) is electrically connected to the display screen (32) through the controller.

4. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 3, characterized in that: A fire hydrant (6) is installed on the side of the storage tank (1), and the bottom of the diversion trough (51) is connected to the waste liquid recovery tank (52) through a liquid delivery pipeline (53).

5. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 4, characterized in that: A pressure sensor is installed at the bottom of the hazardous waste placement plate (5), and the pressure sensor is electrically connected to the display screen (32) on the control box (3) through a controller.

6. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 5, characterized in that: The first drive device (1101), the second drive device (1201) and the third drive device (403) are all composed of a motor and a reduction gearbox. The motor is mounted on the reduction gearbox by bolts. The reduction gearbox on the first drive device (1101) is connected to the first screw rod (1103), one end of the first screw rod (1103) is connected to the bearing at the end of the first slide groove. The reduction gearbox on the second drive device (1201) is connected to the second screw rod (1202), one end of the second screw rod (1202) is connected to the bearing at the end of the second slide groove. The reduction gearbox on the third drive device (403) is connected to the third screw rod (401), one end of the third screw rod (401) is connected to the bearing at the end of the third slide groove (404).

7. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 1, characterized in that: The materials of the storage warehouse (1) and the electric door (2) are both radiation-proof materials.

8. The temporary storage facility for hazardous waste from a nuclear power plant according to claim 6, characterized in that: The control box (3) is electrically connected to the first drive device (1101), the second drive device (1201), the third drive device (403), the electric telescopic rod (13), the lighting lamp (901) and the air purification device (10), respectively.

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