8 results about "Radiation risk" patented technology

The utility model relates to engineering detection technical field, discloses a kind of quick detection device of dry density specifically, to solve the problems such as traditional detection method operation cumbersome, low efficiency, existing radiation risk. Device core includes standard container, weighing sensor, signal conditioning circuit, single-chip microcontroller, hardware proportioning calculator, stable judging module, display screen and ventilation / heating module. Through RFID, container volume V is automatically read, weighing sensor measures soil sample mass m, proportioning calculator calculates dry density ρ=m / V in real time, and the result is output through display screen;Ventilation / heating module accelerates moisture evaporation, shortens detection time. The device has the advantages of real-time display, simple operation, avoids artificial error, no radiation risk, and is suitable for fine-grained soil, coarse-grained soil and frozen soil detection dry density requirements, etc., and is suitable for water conservancy engineering, such as earth dam filling and embankment engineering, building engineering and other fields of soil compaction quality rapid detection.

The application provides a radiation work risk grade determination method and system based on quantitative analysis. The method comprises the following steps: obtaining a radiation risk grade corresponding to each risk value and each item that has an influence on the radiation risk; determining each radiation risk quantitative analysis item and a weight corresponding to each radiation risk quantitative analysis item according to each item that has an influence on the radiation risk; establishing a radiation risk analysis model based on each radiation risk quantitative analysis item, the weight corresponding to each radiation risk quantitative analysis item, and the radiation risk grade corresponding to each risk value; obtaining each work parameter data corresponding to radiation work, and determining a risk grade corresponding to the radiation work based on the radiation risk analysis model. The technical scheme provided by the application can quantitatively, scientifically and accurately determine the risk grade of the radiation work of a nuclear power plant.

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.

The application relates to a fuel assembly unloading shielding tank, which comprises a tank body, an accommodating cavity for accommodating a fuel assembly is formed in the tank body, and a through opening and an open end communicated with the accommodating cavity are formed in opposite ends of the tank body along the axial direction; a tank cover is movably connected to the tank body and used for opening or closing the open end; a trigger block is movable relative to the tank body and can be filled in or separated from the through opening; the tank cover opens the open end when the trigger block is separated from the through opening and closes the open end when the trigger block is filled in the through opening. The fuel assembly unloading shielding tank can reduce the radiation risk of workers during fuel assembly unloading, improve operation safety and be beneficial to nuclear safety control.

This invention relates to the technical field of radioactive waste treatment, and discloses a combined packaging container for radioactive waste in a hot chamber, a shielding system, and a method for shielding radioactive waste. The combined packaging container for radioactive waste in a hot chamber includes a transfer container, a sealing container, and a fixing mechanism. The transfer container has a gripping part on its periphery for a robotic arm to grip and empty the container. The sealing container includes a sealing cap and a sealing body. The sealing cap is closably connected to the sealing body, and the sealing body defines a sealing cavity for storing radioactive waste. The sealing cap has a first clamping position for connection to the robotic arm, and the sealing body has a second clamping position. The fixing mechanism has a clamping part and a movable part connected to each other. The clamping part is driven by the movable part to switch between a first position and a second position. The combined packaging container for radioactive waste in a hot chamber of this invention can improve the sealing performance of the sealing container and reduce the radiation risk of radioactive waste.

The present application belongs to the technical field of particle accelerators, and discloses a solid target low-gas automatic target changing system based on target material loss real-time monitoring, which comprises a target chamber, a fixed water-cooled back plate, a target library, a modular target assembly, a target material loss monitoring module, an automatic target changing execution mechanism, an ultrahigh vacuum pumping system, a vacuum isolation valve and a central control system. The target material loss monitoring module is used to realize real-time monitoring of target material depletion. The modular target assembly and the automatic target changing execution mechanism are used to realize fully automatic target changing. The fixed water-cooled back plate is fixed and sealed without disassembly throughout the whole process. The whole system adopts low-gas materials and full-metal sealing. The vacuum is not damaged, the cooling is not interrupted, and there is no radiation exposure during target changing. The present application realizes online monitoring of target material loss, fully automatic target changing, fixed cooling, low-gas and ultrahigh vacuum stable operation, and solves problems such as high radiation risk, low target changing efficiency, easy damage of vacuum and easy failure of cooling structure.

This invention relates to the field of data health monitoring and imaging technology, providing a foot arch data acquisition device based on non-contact thermal infrared imaging. The device includes an infrared thermal information acquisition pad, an infrared sensor, and a mobile device. The infrared thermal information acquisition pad has positioning marks on the human foot. The mobile device is placed on one side of the infrared thermal information acquisition pad, and the infrared sensor is slidably mounted on the mobile device. Utilizing non-contact thermal infrared imaging technology, the subject only needs to stand on the acquisition pad, without wearing complex equipment or direct contact with the device. Operation is simple and convenient, reducing tedious preparation work and improving acquisition efficiency. Furthermore, thermal infrared imaging technology acquires temperature information by detecting the infrared radiation emitted by objects, without generating radiation, posing no harm to the subject's body, avoiding the radiation risks that may exist with traditional data acquisition technologies, and ensuring the health and safety of the subject.