A volatile nuclear material storage device

Abstract

The present invention relates to a volatile nuclear material storage device, which belongs to the field of nuclear material storage. It comprises a storage tank, a filter plate is arranged above the storage tank, a plurality of holes are arranged at the bottom of the storage tank for airflow to pass through, a detector is arranged at the lower side of the storage tank, a fan is arranged beside the detector, the fan is connected to a ventilation duct, and the other end of the ventilation duct extends out of the storage device and is connected to the outside atmosphere. By arranging the detector, the safety status of the nuclear material can be monitored, and the radioactive substances volatilized from the nuclear material can be discharged into the atmosphere without affecting the overall exhaust of the nuclear material warehouse, which is more convenient for the safe storage of volatile nuclear materials. The volatile nuclear material storage device disclosed by the present invention has the advantages of simple structure, high degree of integration, easy control, and not easy to cause pollution. It can ensure the safe storage of volatile nuclear materials and meet the requirements of warehouse environment monitoring.

Description

Technical Field

[0001] The invention belongs to the field of nuclear material storage, and in particular relates to a volatile nuclear material storage device. Background Art

[0002] Currently, nuclear material storage warehouses are usually built according to the requirements of the "Implementation Rules of the Nuclear Material Control Regulations of the People's Republic of China" (National Nuclear Safety Law No. 129). However, the existing nuclear material storage warehouses only consider the safety precautions of the warehouses, and do not consider the storage of volatile nuclear materials.

[0003] When storing nuclear materials, if there are volatile nuclear materials in the warehouse, it is very easy to cause radioactive contamination in the entire warehouse, threatening the personal safety of the staff and reducing the safety of the entire nuclear material storage warehouse. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a volatile nuclear material storage device. By arranging a detector and an exhaust device in the storage device, the detector and the exhaust device are combined to ensure the safe storage of nuclear materials and the overall environmental safety of the warehouse meets the requirements.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a volatile nuclear material storage device, the storage device includes a storage tank, a filter plate is arranged above the storage tank, a plurality of holes are arranged at the bottom of the storage tank for air flow to pass through, a detector is arranged on the lower side of the storage tank, and a fan is arranged beside the detector, the fan is connected to a ventilation duct, and the other end of the ventilation duct extends out of the storage device and is connected to the outside atmosphere.

[0006] Furthermore, the detector is used to measure the radiation dose rate of the measured airflow.

[0007] Furthermore, when the radiation metering rate data output by the detector exceeds a preset threshold, the fan is controlled to start exhausting air.

[0008] Furthermore, an operation observation window is arranged beside the storage tank.

[0009] Furthermore, the operation observation window can be a visual operation observation window.

[0010] Furthermore, the operation observation window is made of glass.

[0011] Furthermore, the exhaust volume of the fan is greater than the volume of the storage chamber.

[0012] The effect of the present invention is that the volatile nuclear material storage device disclosed in the present invention has the advantages of simple structure, easy control, low pollution, high integration, etc., which can ensure the safe storage of volatile nuclear materials and meet the requirements of warehouse environment monitoring. The overall integration of the device is high, and the safety status of nuclear materials can be monitored by setting detectors. The radioactive substances volatilized by the nuclear materials can be discharged into the atmosphere without affecting the overall exhaust of the nuclear material warehouse, which is more convenient for the safe storage of volatile nuclear materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a volatile nuclear material storage device according to Embodiment 1 of the present invention;

[0014] Among them: 1-detector, 2-fan, 3-filter plate, 4-ventilation duct, 5-operation observation window. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Embodiment 1

[0017] like Figure 1 As shown, an embodiment of the present invention discloses a volatile nuclear material storage device, which includes a detector 1, a fan 2, a filter plate 3, a ventilation duct 4, and an operation observation window 5. The volatile nuclear material is stored in a storage tank, and a filter plate 3 is arranged above the storage tank to filter out large-size dust particles attached to the air to prevent them from being deposited on the nuclear material in the storage tank. A plurality of holes are arranged at the bottom of the storage tank for airflow to pass through, and a detector 1 is arranged at the lower side of the storage tank. The detector 1 is used to measure the radiation dose rate of the measured airflow and take corresponding measures according to the radiation dose rate measurement results.

[0018] A fan 2 is arranged beside the detector 1, and the fan 2 is connected to a ventilation duct 4, and the other end of the ventilation duct 4 extends out of the storage device and is connected to the outside atmosphere.

[0019] When the radiation dosage rate data output by the detector 1 exceeds a preset threshold, the fan 2 is controlled to start and begin to extract air to discharge the volatilized radioactive nuclear materials into the atmosphere, thereby reducing the radioactive gas concentration in the storage room, reducing the exposure risk of the staff, and improving the overall environmental safety of the warehouse.

[0020] Workers can also take appropriate safety precautions when performing operations based on the detector's measurement results.

[0021] The operation observation window 5 is made of glass. By providing a visual operation observation window, it is convenient to observe the state changes of the nuclear materials inside the storage tank, so as to facilitate the overall control of the nuclear materials in the storage device such as inventory.

[0022] In this embodiment, a volatile nuclear material storage device is 1200 mm wide and 2400 mm high, but this is not limited.

[0023] In this embodiment, the air supply volume of fan 2 is>1100m 3 / h, exhaust volume>1300m 3 / h, the diameter of the exhaust pipe is 250mm, the wind speed is 0.3-0.8m / s, and the measuring range of the detector 1 is 50nGy / h-100μGy / h, but this is not limited.

[0024] After turning on the power, the lights on the circuit control panel of a volatile nuclear material storage device light up and flash, the equipment performs self-test, and the equipment can operate continuously for 24 hours.

[0025] The exhaust volume of fan 2 is much larger than the storage space volume of volatile nuclear materials, that is, the exhaust volume of fan 2 is much larger than the volume of the storage room, and the radioactive substances volatilized by volatile nuclear materials can be discharged into the atmosphere in time to meet the protection requirements of the warehouse.

[0026] It can be seen from the above embodiments that the volatile nuclear material storage device disclosed in the present invention has the advantages of simple structure, easy control, low pollution, high integration, etc., which can ensure the safe storage of volatile nuclear materials and meet the requirements of warehouse environment monitoring. The overall integration of the device is high, and the safety status of nuclear materials can be monitored by setting detectors. The radioactive substances volatilized by the nuclear materials can be discharged into the atmosphere without affecting the overall exhaust of the nuclear material warehouse, which is more convenient for the safe storage of volatile nuclear materials.

[0027] The device described in the present invention is not limited to the embodiments described in the specific implementation manner. Those skilled in the art may derive other implementation manners based on the technical solution of the present invention, which also fall within the technical innovation scope of the present invention.

Claims

1. A volatile nuclear material storage device, characterized in that: The storage device includes a storage tank, a filter plate is arranged above the storage tank, a plurality of holes are arranged at the bottom of the storage tank for air flow to pass through, a detector is arranged at the lower side of the storage tank, a fan is arranged beside the detector, the fan is connected to a ventilation duct, the ventilation duct is L-shaped as a whole, and extends from the lower side of the storage tank to the side of the storage tank, the inlet of the ventilation duct is arranged at the lower side of the storage tank, the air inlet direction of the ventilation duct is perpendicular to the air flow direction of the storage tank, the other end of the ventilation duct extends out of the storage device and is connected to the outside atmosphere, the air outlet direction of the ventilation duct is opposite to the air flow direction of the storage tank, and when the radiation metering rate data output by the detector exceeds a preset threshold, the fan is controlled to start exhausting air, and the exhaust volume of the fan is greater than the volume of the storage tank.

2. A volatile nuclear material storage device according to claim 1, characterized in that: The detector is used to measure the radiation dose rate of the measured airflow.

3. A volatile nuclear material storage device according to claim 1, characterized in that: An operation observation window is arranged beside the storage tank.

4. A volatile nuclear material storage device according to claim 3, characterized in that: The operation observation window can be a visual operation observation window.

5. A volatile nuclear material storage device according to claim 4, characterized in that: The operation observation window is made of glass.

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