CN211528947U

CN211528947U - Intelligent safety monitoring and interlocking control system for accelerator

Info

Publication number: CN211528947U
Application number: CN201922107069.5U
Authority: CN
Inventors: 李岩; 赵弘韬; 赵孝文; 李钢; 杨斌; 杨仲秋; 王强
Original assignee: Technical Physics Institute Heilongjiang Academy Of Sciences
Current assignee: Technical Physics Institute Heilongjiang Academy Of Sciences
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-09-18
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses an intelligent safety monitoring of accelerator and interlocking control system, include: the system comprises a radiation field monitor and an intelligent system management platform, wherein the radiation field monitor is mainly arranged in an accelerator hot chamber and is used for monitoring and covering the accelerator hot chamber in an all-dimensional and dead-angle-free manner; an accelerator is arranged in the accelerator hot chamber; the intelligent system management platform is arranged in a control room at one side of the accelerator hot chamber, is electrically connected with the radiation field detector and is used for processing data collected by the radiation field detector; interlocking devices are installed at the door opening of the accelerator hot chamber and the door opening of the control chamber, and the interlocking devices are electrically connected with the radiation field monitor. The utility model discloses can carry out real-time supervision to the state of accelerator hot chamber, actively cut off accelerator generating device when detecting someone stagnates in accelerator hot chamber, prevent that the personnel from receiving radiation injury.

Description

Intelligent safety monitoring and interlocking control system for accelerator

Technical Field

The utility model belongs to the technical field of the accelerator, more specifically the utility model relates to an intelligent safety monitoring of accelerator and interlocking control system that says so.

Background

In recent years, with the rapid development of electron accelerator technology, the application of accelerators has been far beyond the fields of nuclear physics and particle physics, and has important application in other scientific and technological fields such as material science, surface physics, molecular biology, photochemistry, and the like. The accelerator is widely applied to the aspects of isotope production, tumor diagnosis and treatment, ray disinfection, nondestructive inspection, high-molecular irradiation polymerization, material irradiation modification, ion implantation, ion beam microanalysis, space radiation simulation, nuclear explosion simulation and the like in the fields of industry, agriculture and medicine.

However, the accelerator is widely applied, the problem of safe use of the accelerator always puzzles people, the existing accelerator is only provided with the traditional access control interlocking device, the internal inspection of an irradiation hot chamber before starting is finished manually, and although the accelerator is provided with the corresponding safety interlocking device, the irradiation safety accidents of the accelerator still happen occasionally.

Therefore, how to provide an intelligent accelerator safety monitoring and interlock control system becomes a problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an intelligent safety monitoring of accelerator and interlocking control system can carry out real-time supervision to the state of accelerator hot chamber, cuts off accelerator generating device voluntarily when detecting that someone stagnates in accelerator hot chamber, prevents that the personnel from receiving radiation injury.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intelligent safety monitoring and interlocking control system for an accelerator comprises: the system comprises a radiation field monitor and an intelligent system management platform, wherein the radiation field monitor is arranged in an accelerator hot chamber and is used for monitoring and covering the accelerator hot chamber in an all-dimensional and dead-angle-free manner; an accelerator is arranged in the accelerator hot chamber; the intelligent system management platform is arranged in a control room at one side of the accelerator hot chamber, is electrically connected with the radiation field detector and is used for processing data acquired by the radiation field detector; the accelerator hot chamber door opening and the control chamber door opening are provided with interlocking devices, and the interlocking devices are electrically connected with the radiation field monitor.

Preferably, the accelerator hot chamber door opening and the control chamber door opening are also provided with the radiation field monitor.

Preferably, a plurality of radiation field monitors are arranged in the accelerator hot chamber, and the radiation field monitors are arranged on the peripheral walls of the accelerator hot chamber and above the accelerator.

Preferably, the housing of the radiation field monitor is lined with a lead plate.

Preferably, the radiation field monitor comprises a microprocessor, a detection component, a monitoring and early warning terminal, a machine interlock controller and a display component, wherein the detection component, the monitoring and early warning terminal, the machine interlock controller and the display component are all electrically connected with the microprocessor; the microprocessor carries out scheduling and control on system operation; the detection assembly is used for detecting radiation dose, sensing temperature and detecting human body; the monitoring and early warning terminal performs data display, alarm output and emergency response according to the monitoring data of the system; the machine interlocking controller is electrically connected with the interlocking device to control the interlocking device; the display assembly controls the access control device and displays monitoring data.

Preferably, the detection assembly comprises a dose monitor, an electron beam temperature monitor and a human body detector.

Preferably, the monitoring and early warning terminal comprises an alarm lamp and an alarm bell, an electronic door opener and an emergency stop device.

Preferably, the display module includes main control system, LED display device and access controller, LED display device with access controller all with main control system electric connection.

Preferably, the intelligent system management platform controls the access control device and the accelerator switch according to the data uploaded by the radiation field monitor, stores and analyzes the radiation monitoring data, pushes the time, the position and the accelerator radiation field data to the LED display device for display, and meanwhile, can inquire historical data.

The utility model has the advantages that:

the utility model discloses a radiation field monitor can carry out real-time supervision to the state of accelerator hot chamber, when detecting someone and detaining in the accelerator hot chamber, initiatively cuts off accelerator generating device, prevents that the personnel from receiving radiation injury.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of the installation structure of the present invention.

Fig. 2 is a block diagram of the radiation field monitor according to the present invention.

Wherein, in the figure,

1-a radiation field monitor; 2-an intelligent system management platform; 3-a heater hot chamber; 4-an accelerator; 5-a control room; 6-interlocking device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the embodiment of the utility model discloses an intelligent safety monitoring of accelerator and interlocking control system, include: radiation field monitor 1 and intelligent system management platform 2, radiation field monitor 1 installs in accelerator hot chamber 3 for to the control that carries out all-round no dead angle in the accelerator hot chamber 3 cover, the monitoring content includes: monitoring the change conditions of the radiation dose field and the temperature around the accelerator 4 during operation and detecting whether personnel are detained in the monitoring range. An accelerator 4 is arranged in the accelerator hot chamber 3; the intelligent system management platform 2 is arranged in a control room 5 at one side of the accelerator hot chamber 3, is electrically connected with the radiation field detector 1 and is used for processing data acquired by the radiation field detector 1; interlocking devices 6 are installed at the 3 doorways of the accelerator hot chamber and the 5 doorways of the control chamber, and the interlocking devices 6 are electrically connected with the radiation field monitor 1. The utility model discloses a radiation field monitor 1 can carry out real-time supervision to accelerator hot chamber 3's state, when detecting someone and detain in accelerator hot chamber 3, initiatively cuts off accelerator generating device, prevents that the personnel from receiving radiation injury. The intelligent system management platform 2 is a control core of the system and is designed to be developed by adopting a B/S distributed structure, and the main functions of the platform are access management, parameter setting, operation user management, monitoring data storage and statistical analysis, alarm event recording and processing and the like of the radiation field monitor 1.

In another embodiment, the radiation field monitor 1 is also arranged at the door opening of the accelerator hot chamber 3 and the door opening of the control chamber 5. A plurality of radiation field monitors 1 are arranged in the accelerator hot chamber 3, and the radiation field monitors 1 are arranged on the peripheral walls of the accelerator hot chamber 3 and above the accelerator 4. A plurality of radiation field monitors 1 can be installed according to the size of the accelerator 4 and the radiation environment, and dead-angle-free monitoring is achieved.

In another embodiment, the housing of radiation field monitor 1 is lined with a lead plate.

The radiation field monitor comprises a microprocessor, a detection assembly, a monitoring and early warning terminal, a machine interlocking controller and a display assembly, wherein the detection assembly, the monitoring and early warning terminal, the machine interlocking controller and the display assembly are all electrically connected with the microprocessor; the microprocessor carries out scheduling and control of system operation; the detection component is used for detecting radiation dose, sensing temperature and detecting human body; the monitoring and early warning terminal performs data display, alarm output and emergency response according to the monitoring data of the system; the machine interlocking controller is electrically connected with the interlocking device to control the interlocking device; the display component controls the access control device and displays monitoring data.

The detection assembly comprises a dose monitor, an electron beam temperature monitor and a human body detector. The utility model discloses a redundant design that dose monitor, electron beam temperature monitor and human detection instrument combined together carries out real-time supervision to the state of accelerator hot chamber, and radiation field monitor initiative cuts off accelerator generating device when detecting someone stays in accelerator hot chamber, prevents that the personnel from receiving radiation injury.

The dose monitor adopts a small silicon PN photoelectric detector, has the characteristic of small volume and high detection effect, can be installed in a low radiation field environment, and avoids damaging electronic elements by large dose irradiation.

The electron beam temperature monitor adopts a nanometer rare-silicon superconducting temperature sensor to monitor the temperature of an energy gathering part of an electron beam emitting end, the temperature sensor has the characteristics of high-intensity radiation resistance, small volume, flexible and convenient installation and the like, can be used as a redundant design of a radiation field monitor, and can achieve an alarm function by monitoring the temperature change of the electron beam when dosage monitoring fails.

The human body detector adopts a redundant design combining a microwave detector and an ultrasonic detector, the microwave detector can detect a moving object within a range of 7 meters at 360 degrees, is not influenced by temperature, humidity, light and the like, and has strong radio frequency interference resistance; the ultrasonic detector can directionally detect the moving objects within the range of 10 meters, and the sensor of the ultrasonic detector is made of ceramic composite materials and has the characteristic of strong radiation resistance. The microwave detector is provided with a shutter device, when the dosage reaches a set upper limit, the shutter is opened, the microwave detector is started, and when abnormality is found, the power supply of the accelerator is automatically cut off by sound and light alarm; when no abnormal condition is detected, the shutter is automatically closed, so that the microwave detector is prevented from being damaged by long-term large-dose irradiation; the detection function can be started periodically and circularly by setting.

The monitoring and early warning terminal comprises an alarm lamp alarm bell, an electronic door opener and an emergency stop device, and can perform alarm output, emergency response and the like according to the monitoring data of the system. The emergency shutdown device can switch off the most initial operational functions of the accelerator (e.g., electron gun triggering, high voltage of the ion source, etc.) and only then terminate the serious radiation hazard that may occur anywhere. Such as: if someone mistakenly enters a laboratory due to the fault of an access control system in the running process of the accelerator, the function of directly stopping the accelerator is necessary to detect that someone is about to enter the area before stepping into the high-radiation area. Meanwhile, A, B two threshold values are set for the radiation field monitor, the A threshold value is that the accelerator is started but the radiation dose does not form serious threat to the health of the short-time staying personnel, and the B threshold value is the disabling or lethal radiation dose limit value. When the threshold value A is exceeded, safety early warning is carried out, but the accelerator can not be cut off temporarily; and when the radiation dose exceeds the B threshold value, the alarm is given and the accelerator is switched off.

The display assembly comprises a control host, an LED display device and an access controller, and the LED display device and the access controller are both electrically connected with the control host. The data can be displayed in real time according to the monitoring data of the system.

In another embodiment, a Zigbee Internet of things communication module is embedded in the radiation field monitor, so that wireless connection with an intelligent system management platform, an interlocking device, an access control device and an accelerator is realized. The intelligent system management platform controls the access control device and the accelerator switch according to data uploaded by the radiation field monitor, stores and analyzes radiation monitoring data by using a professional database, pushes data such as time, position and accelerator radiation field to the monitoring and early warning terminal for displaying, and meanwhile, can inquire historical data. The utility model discloses very much still can support wireless intelligent terminal to carry out remote access to adopt RBAC authority management strategy to carry out the authorization of function and data access authority to the operating user of system.

The utility model discloses a work flow as follows:

(1) the radiation field monitor collects the radiation dose value and the temperature around the accelerator generating device when the accelerator runs, and simultaneously monitors whether movable objects exist in each area of the laboratory or not.

(2) When the collected radiation dose exceeds a set threshold or people are detected to be detained in a monitoring area, an alarm signal can be sent to the intelligent system management platform through the wireless network, the intelligent system management platform judges according to the danger degree of the situation and takes corresponding treatment measures, such as: and sending a command for cutting off the accelerator generating device or sending a safety early warning command to the monitoring and early warning terminal.

(3) And if the radiation field monitor receives a shutdown instruction of the intelligent system management platform, starting an emergency shutdown device to perform shutdown processing on the accelerator.

(4) If the monitoring and early warning terminal receives the early warning instruction of the intelligent system management platform, sound and light alarm is sent on site, and alarm information is sent to a safety management responsible person of an accelerator set by the system.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent safety monitoring and interlocking control system for an accelerator is characterized by comprising: the system comprises a radiation field monitor and an intelligent system management platform, wherein the radiation field monitor is arranged in an accelerator hot chamber and is used for monitoring and covering the accelerator hot chamber in an all-dimensional and dead-angle-free manner; an accelerator is arranged in the accelerator hot chamber; the intelligent system management platform is arranged in a control room at one side of the accelerator hot chamber, is electrically connected with the radiation field detector and is used for processing data acquired by the radiation field detector; the accelerator hot chamber door opening and the control chamber door opening are provided with interlocking devices, and the interlocking devices are electrically connected with the radiation field monitor.

2. The intelligent accelerator safety monitoring and interlocking control system according to claim 1, wherein the radiation field monitor is further arranged at the accelerator hot chamber door opening and the control chamber door opening.

3. The intelligent accelerator safety monitoring and interlock control system according to claim 1, wherein a plurality of radiation field monitors are disposed in the accelerator hot chamber, and the radiation field monitors are mounted on the peripheral walls of the accelerator hot chamber and above the accelerator.

4. The intelligent accelerator safety monitoring and interlock control system according to claim 2 or 3, wherein the housing of the radiation field monitor is lined with lead plates.

5. The intelligent accelerator safety monitoring and interlocking control system according to claim 2 or 3, wherein the radiation field monitor comprises a microprocessor, a detection component, a monitoring and early warning terminal, a machine interlocking controller and a display component, and the detection component, the monitoring and early warning terminal, the machine interlocking controller and the display component are all electrically connected with the microprocessor; the microprocessor carries out scheduling and control on system operation; the detection assembly is used for detecting radiation dose, sensing temperature and detecting human body; the monitoring and early warning terminal performs data display, alarm output and emergency response according to the monitoring data of the system; the machine interlocking controller is electrically connected with the interlocking device to control the interlocking device; the display assembly controls the access control device and displays monitoring data.

6. The intelligent accelerator safety monitoring and interlock control system of claim 5, wherein the detection assembly comprises a dose monitor, an electron beam temperature monitor, and a human body detector.

7. The intelligent accelerator safety monitoring and interlocking control system according to claim 5, wherein the monitoring and early warning terminal comprises an alarm lamp alarm bell, an electronic door opener and an emergency shutdown device.

8. The intelligent accelerator safety monitoring and interlocking control system according to claim 5, wherein the display assembly comprises a control host, an LED display device and an entrance guard controller, and the LED display device and the entrance guard controller are both electrically connected with the control host.