RU2714857C2 - Apparatus for centralized control and measurement of radioactivity of process equipment, contamination of articles of use and dosimetry of maintenance personnel - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention relates to means of ensuring radiation safety. Summary: device comprises stationary units (1) of radiation measurements, equipment (2) for collecting, processing and recording information, industrial computer (3) with specialized software, information output unit (4), mobile apparatus (5) for controlling radioactive contamination of items and personnel equipment, modules (11) for controlling devices for restricting passage to premises of an object with high radioactivity and contamination, video cameras (12), identifiers (13) for personnel presence in rooms, specialized sensors (14) for radiation monitoring of environment and communication module (15). Mobile plant (5) consists of sensors (6) of personnel presence in rooms, set of phoswich detectors (7), local alarm module (8), worker identifier (9) and video camera (10). Communication module (15), information collection, processing and recording equipment (2), industrial computer (3), information output unit (4) are built into centralized control and control panel (16). At that, data collection, processing and recording equipment (2) has additional input (17) for signals from personal radio communication devices, radiometry and dosimetry.

EFFECT: technical result is expansion of functional capabilities.

1 cl, 1 dwg

Description

The invention relates to the field of radiation safety, technologies for radiation monitoring of equipment, the environment, dosimetry and pollution control of items used by personnel during maintenance of industrial facilities. The ultimate goal of the use of such devices is to protect maintenance personnel of hazardous facilities, as well as ensuring environmental safety for the public and the environment. The claimed device can be used in the process of servicing hazardous facilities, which may include offshore production platforms, during repairs, as well as when performing decontamination of equipment with radiation levels exceeding the permissible level.

It is known "Device for monitoring radioactive contamination" [RF patent for utility model No. 127484, publ. 04/27/2013], which includes a set of detectors (fosvich detectors) for combined registration of beta and gamma radiation, a module for presence sensors, an alarm module, a module for controlling devices for restricting access, a data input / output module and a computer, and for small In addition, a fosvich detector for combined registration of beta and gamma radiation connected to the information bus of the set of detectors, as well as an identification module for personal personnel cards and a video camera connected to a computer, is additionally installed.

The disadvantages of this device are the lack of specialized equipment for technological radiation monitoring of pipelines, equipment and the environment, means of personnel communication with the operator of the central monitoring and control panel.

The well-known "Mobile radio device with a dosimeter-radiometer" [RF patent for utility model No. 109625, publ. October 20, 2011], in which a transceiver device and a processor are connected electrically connected to each other, to which a monitor, keyboard, memory unit, power supply and sound signaling devices are connected, equipped with a semiconductor radiation detector, an amplifier and an interface unit connected in series, the output of which connected to a processor configured to generate sound and visual signals of the dosimeter and radiometer using the aforementioned sound alarm and monitor.

The disadvantages of this device are the lack of a control module for passage restriction devices, stationary specialized equipment for technological radiation monitoring of pipelines, equipment and the environment for the constant transmission of information to a centralized monitoring and control panel of an application and personnel presence sensors (cameras) in specific rooms.

The closest is the "Automated system of technological radiation monitoring of pipelines and equipment of offshore platforms and terminals" [RF patent for utility model No. 115080, publ. April 20, 2012], consisting of radiation monitoring units based on gamma-spectrometric scintillation sensors in an airtight capsule, a power and communications unit and / or switching radiation monitoring units, equipment for collecting, processing and recording information on the assessment of scaling parameters, entered into the system with a hardware-software complex including an industrial computer and software, as well as an information output device associated with an industrial computer.

The disadvantages of this device is the lack of:

- a device control module for restricting access to the premises of an object,

- special equipment for dosimetric monitoring and control of radioactive contamination of objects and equipment of maintenance personnel when performing work on decontamination of equipment or replacement of its components,

- special presence sensors,

- video cameras,

- personnel identifiers,

- as well as radiation monitoring of the environment and personnel communications with the operator of the central monitoring and control panel.

The problem to be solved by the invention is the comprehensive protection of personnel and the environment by providing centralized radiation and dosimetric monitoring to carry out the process of evacuating personnel from hazardous areas if excess doses are exceeded or when conditions are unacceptable for personnel to be in controlled areas, as well as when radioactive contamination is detected in the area performing repair work, for timely decontamination of equipment, clothing and items used by personnel; providing processing of information coming from various groups of object sensors, generating control actions automatically and by one operator using specialized software and equipment of a central monitoring and control panel.

Achievable technical result - expanding the functionality of the device, by ensuring the detection of radioactive equipment items with the control of changes in the level of radiation over time, environmental pollution, repair areas, items used by repairmen and their timely decontamination, with a combination of functions for simultaneous individual control of doses received, the state of the attendant personnel in the radiation hazard zone.

The claimed device for centralized monitoring and measuring the radioactivity of technological equipment and the environment, contamination of items of use and dosimetry of maintenance personnel contains stationary units of radiation measurements, equipment for collecting, processing and recording information connected to an industrial computer with specialized software, as well as an information output unit associated with with the mentioned computer. Additionally, the device contains a newly introduced mobile installation for monitoring radioactive contamination of objects and staff equipment, consisting of presence sensors, a set of detectors (fosvich detectors), a local alarm module, an identifier and a video camera that are directly connected to equipment for collecting, processing and recording information. The equipment for collecting, processing and recording information is directly connected with the introduced control modules for devices restricting access to the premises of the facility with increased radioactivity and pollution, video cameras, identifiers for the presence of personnel in the premises and specialized sensors for radiation monitoring of the environment, as well as with the communication module. The communication module, together with the mentioned equipment for collecting, processing and recording information, an industrial computer, an information output unit, is built into the centralized control and management panel. The equipment for collecting, processing and recording information has an additional input for signals from personal radio communication devices, radiometry and dosimetry.

The device for centralized monitoring and measuring the radioactivity of technological equipment and the environment, contamination of items of use and dosimetry of service personnel, presented in the Figure, contains stationary units 1 of radiation measurements, equipment 2 for collecting, processing and recording information connected to an industrial computer 3 with specialized software, as well as an information output unit 4 associated with said computer 3. Additionally, the device comprises a newly introduced a mobile installation 5 for monitoring radioactive contamination of objects and personnel equipment during repair work and equipment decontamination, consisting of presence sensors 6, a set of detectors (fosvich detectors) 7, a local alarm module 8, identifier 9, and video camera 10, which are directly connected to the equipment 2 collection, processing and registration of information. The equipment 2 for collecting, processing and recording information is directly connected with the introduced modules 11 for controlling devices for restricting access to the premises of the facility with increased radioactivity and pollution, video cameras 12, identifiers 13 for the presence of personnel in the premises and specialized sensors 14 for radiation monitoring of the environment, as well as with the module 15 communications. The communication module 15, together with the mentioned equipment 2 for collecting, processing and recording information, an industrial computer 3, an information output unit 4, is integrated in the centralized monitoring and control panel 16. The equipment 2 for collecting, processing and recording information has an additional input 17 for signals from personal radio communication devices, radiometry and dosimetry.

The claimed device operates as follows.

At the initial stage of the facility’s functioning, the environment, equipment and its elements are examined using personal radio communication, radiometry and dosimetry devices. The information from the radio devices, received at input 17, through the equipment 2, to the computer 3 is systematized, linked to a three-dimensional model of the object (for example, using the GLONASS system) and is constantly updated when staff moves. The operator of the remote control 16 of the centralized control and management, through the output unit 4, receives information, both in a separate form with selection at a given level, and in the form of a three-dimensional model of an object with reflection of the radioactivity levels of the equipment.

Stationary units 1 of radiation measurements are installed at selected points on pipelines and equipment with a pronounced tendency to increase radiation.

Specialized sensors 14 of environmental radiation monitoring measure the background radiation in the area of the facility, in the areas of likely radioactive contamination by industrial emissions. For offshore drilling and production platforms, this is the air and water environment, where the most likely places for radioactive contamination are areas near associated gas flares, associated water separation units, storage tanks, places for discharge of treated industrial and domestic water, and the water area near the platform.

The premises where the radiation hazardous equipment and its elements are located have limited access, provided by devices for restricting access, automatically controlled by computer 3 or the operator of the console 16, through equipment 2 and modules 11. Access to the premises is carried out after identification of the employee through personal identifier 13, during verification personalities through video cameras 12 installed at the entrance and inside the premises of the facility, as well as if the employee has a personal radio communication device, radiometry and dosimetry and. Thus, the personnel authorized to work is under personalized, visual, dosimetric control in the conditions of constant measurement of radio emission levels of stationary units 1, specialized sensors 14 and portable personal radio communication devices, radiometry and dosimetry in the mode of centralized automatic control and processing of information by equipment 2 and computer 3 with specialized software.

The role of the operator of the centralized monitoring and control panel 16 is to coordinate the maintenance of the facility with visual monitoring of the status and actions of the performers according to the work plan, and if there is a threat of exceeding the permissible doses or when conditions are unacceptable for the personnel to be in the controlled areas, they will organize the evacuation of people. If there is a threat of environmental pollution, take urgent measures to prevent it. To carry out these activities, the remote control 16 is equipped with a communication module 15 and an information output unit 4, including from video cameras 12, and each employee is equipped with a portable personal radio device for communication, radiometry and dosimetry.

The duration of operation of equipment is inextricably linked with the implementation of repair operations, expressed in restoring the operability of equipment or its elements. Increasing the level of radiation during salt deposits requires the dismantling of individual parts, followed by decontamination and installation for further operation of the equipment. These technological operations necessitate the use of specialized equipment - a mobile unit 5 for monitoring radioactive contamination of objects and personnel equipment.

Installation 5, made in the form of a box, incorporates presence sensors 6, a set of detectors (phoswich detectors) 7, a local alarm module 8, identifier 9 and a video camera 10, which are directly connected to the equipment 2 for collecting, processing and recording information from the console 16 centralized control and management. Installation 5 can be moved to various rooms with repaired equipment, the repairmen are admitted to them according to the algorithm described above, and the technology for performing repair operations is controlled by the operator from the console 16.

Repair personnel are also equipped with portable personal radio communications, radiometry and dosimetry devices. Upon completion of work or, if necessary, to leave the room where repairs are carried out related to the possibility of the spread of contaminants, at the command of the operator, the worker is located in a space controlled by sensors 6 of the installation 5, identified by identifier 9 and a video camera 10. The local alarm module 8 sequentially gives commands changes in the position of the legs, arms, torso, head, clothes and other accessories of the employee in relation to the fixed position of the detectors 7. At the same time, The results of measurements of radioactivity are recorded and the degree of contamination of the employee’s equipment is assessed. In the event of an unacceptable level of pollution, the operator can be released from the premises by the operator only when changing clothes and shoes, and contaminated items must be evacuated in a special container. The contaminated site for repair work is deactivated with the subsequent measurement of the level of residual radiation, and the workers who performed the decontamination pass the control of contamination of objects and equipment at Unit 5, in accordance with the procedure described above.

Information from the detectors 7, video cameras 10 and 12, personal radio communication devices, radiometry and dosimetry is recorded in the memory of computer 3. Personal data and previously received doses of workers are also stored there, which allows ensuring access to the work of personnel taking into account previously received radiation doses.

Claims (1)

A device for centralized control and measurement of the radioactivity of technological equipment and the environment, contamination of items of use and dosimetry of maintenance personnel, containing stationary units of radiation measurements, equipment for collecting, processing and recording information connected to an industrial computer with specialized software, as well as an information output unit associated with with said computer, characterized in that it comprises a newly introduced mobile monitoring installation Ioactive contamination of objects and personnel equipment, consisting of presence sensors, a set of detectors, a local alarm module, an identifier and a video camera, which are directly connected to equipment for collecting, processing and recording information that is also directly related to the introduced control modules for devices restricting access to the premises of an object with increased radioactivity and pollution, video cameras, identifiers of the presence of personnel in the premises and specialized sensors environmental radiation monitoring, as well as with a communication module, which, together with the mentioned equipment for collecting, processing and recording information, an industrial computer, an information output unit, is integrated into the centralized control and control panel, and the equipment for collecting, processing and recording information has an additional input for signals from personal radio communication devices, radiometry and dosimetry.

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