CN110109408B - Irradiation processing facility safety system - Google Patents
Irradiation processing facility safety system Download PDFInfo
- Publication number
- CN110109408B CN110109408B CN201810102567.8A CN201810102567A CN110109408B CN 110109408 B CN110109408 B CN 110109408B CN 201810102567 A CN201810102567 A CN 201810102567A CN 110109408 B CN110109408 B CN 110109408B
- Authority
- CN
- China
- Prior art keywords
- safety
- irradiation
- door
- processing facility
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 title claims abstract description 66
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000007689 inspection Methods 0.000 claims description 45
- 238000005286 illumination Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 241000269400 Sirenidae Species 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005865 ionizing radiation Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002654 heat shrinkable material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Emergency Alarm Devices (AREA)
Abstract
本发明公开了一种辐照加工设施安全系统，该安全系统包括：一级安全装置与PLC控制装置电连接，一级安全装置与电子加速器的开关联锁工作；二级安全装置与电子加速器变频柜的主接触器联锁工作；三级安全装置与电子加速器的总电源开关联锁工作；一级安全装置用于通过PLC控制装置对电子加速器进行控制；二级安全装置用于检测辐照剂量是否超标以及是否有人员经过；三级安全装置用于切断辐照加工设施的总电源，使辐照加工设施断电。上述辐照加工设施安全系统通过设置多级安全装置与电子加速器联锁工作，形成多重级冗余联锁保护，并采用PLC程序控制多级安全装置的运行，确保安全系统及时动作，可以多角度、全方位的保护人员的安全。
The present invention discloses a safety system for irradiation processing facilities, which includes: a first-level safety device is electrically connected to a PLC control device, the first-level safety device is interlocked with the switch of an electron accelerator; a second-level safety device is interlocked with the main contactor of a frequency conversion cabinet of an electron accelerator; a third-level safety device is interlocked with the main power switch of an electron accelerator; the first-level safety device is used to control the electron accelerator through a PLC control device; the second-level safety device is used to detect whether the irradiation dose exceeds the standard and whether there are people passing by; the third-level safety device is used to cut off the main power supply of the irradiation processing facility, so that the irradiation processing facility is powered off. The above-mentioned safety system for irradiation processing facilities interlocks with the electron accelerator by setting a multi-level safety device to form a multi-level redundant interlock protection, and uses a PLC program to control the operation of the multi-level safety device to ensure that the safety system is timely operated, and can protect the safety of personnel from multiple angles and in all directions.
Description
Technical Field
The invention relates to the technical field of radiation safety, in particular to a radiation processing facility safety system.
Background
The electron irradiation accelerator is a high-power industrial accelerator for radiation processing. Can be used for the treatment of radiation crosslinking wires, cables and heat-shrinkable materials, the treatment of special polymer materials and composite materials, the preservation and disinfection of foods, and the like. However, when the electron accelerator irradiates, unfavorable rays to human bodies are generated, so that the electron accelerator needs to be performed in a closed environment, but when the electron accelerator works, accidents of unknowing personnel intrusion can occur, and certain injuries are caused to the personnel, so that serious personal safety accidents occur.
In the conventional electron accelerator irradiation device technology, only a door switch is arranged at the lead door of an irradiation room, a main machine room and a pit to avoid the intrusion of unknowns.
However, the above method is too simple in setting the safety protection measures and poor in safety reliability.
Disclosure of Invention
In view of the above, it is necessary to provide a radiation processing facility safety system with high safety and reliability, in order to solve the problem of poor safety and reliability.
In one embodiment, there is provided an irradiation process facility safety system comprising:
The electronic accelerator frequency conversion cabinet comprises a primary safety device, a secondary safety device, a tertiary safety device and a PLC control device, wherein the primary safety device is electrically connected with the PLC control device and is in interlocking work with a switch of the electronic accelerator;
The primary safety device is used for controlling the electronic accelerator through the PLC control device, the secondary safety device is used for detecting whether the irradiation dose exceeds the standard and whether personnel pass through, and the tertiary safety device is used for cutting off the total power supply of the irradiation processing facility so as to cut off the power of the irradiation processing facility.
In one embodiment, the system further comprises a safety system electric control cabinet, wherein the safety system electric control cabinet is electrically connected with the PLC control device, the safety system electric control cabinet comprises a plurality of buttons, and the buttons are used for controlling the starting of the primary safety device through the PLC control device.
In one embodiment, the primary safety device comprises a patrol safety unit, a correlation photoelectric safety unit, a door safety unit, an alarm unit and a signal display unit, wherein the patrol safety unit, the correlation photoelectric safety unit and the door safety unit are respectively and electrically connected with the PLC control device, the patrol safety unit, the photoelectric safety unit and the door safety unit are connected in parallel, the alarm unit is connected with the patrol safety unit in series, and the signal display unit is used for displaying whether the irradiation processing facility operates;
The secondary safety device comprises a diffuse reflection photoelectric safety unit and an online dosage safety unit, wherein the diffuse reflection photoelectric safety unit and the online dosage safety unit are electrically connected with a main contactor of the electronic accelerator frequency conversion cabinet, and the diffuse reflection photoelectric safety unit is connected with the online dosage safety unit in series;
The three-level safety device comprises a scram safety unit, and the scram safety unit is electrically connected with a main power switch of the electronic accelerator.
In one embodiment, the inspection safety unit comprises a plurality of inspection buttons, each inspection button is respectively connected with an inspection button indicator lamp on the PLC control device, the inspection buttons are arranged at one or more positions of the irradiation room, the host room and the pit, and when each inspection button is pressed and pulled up again, the irradiation processing facility safety system can be built.
In one embodiment, the door safety unit comprises a plurality of door control switches used for controlling the opening and closing of the door, the door control switches are connected with door control switch indication lamps on the PLC control device, the door control switches are provided with anti-short-circuit systems used for preventing short circuit of the door control systems, the door control switches are arranged at the entrance of a lead door, and the lead door comprises at least one of an irradiation room lead door, a main machine room lead door and a pit lead shielding cover.
In one embodiment, the correlation type photoelectric safety unit comprises a plurality of correlation type photoelectric switches, the correlation type photoelectric switches are connected with correlation type photoelectric switch indicating lamps on the PLC control device, and the correlation type photoelectric switches are arranged at the passages of the irradiation room and the host room and used for detecting that if a person passes through, the irradiation processing facility safety system is started.
In one embodiment, the online dose safety unit comprises an online dose instrument and a dose alarm element electrically connected with the online dose instrument, the online dose instrument comprises an irradiation dose display unit for displaying irradiation dose values of surrounding environment, and the online dose instrument and the dose alarm element are arranged at the passages of the irradiation chamber and the host chamber;
the diffuse reflection photoelectric safety unit comprises a plurality of diffuse reflection photoelectric switches and prompt lamps connected with the diffuse reflection photoelectric switches, and the diffuse reflection photoelectric switches and the prompt lamps connected with the diffuse reflection photoelectric switches are arranged at the corridor of the irradiation room and the host room;
And if the online dosimeter detects that the irradiation dose of the surrounding environment exceeds a preset threshold value and the diffuse reflection photoelectric switch detects that a person passes through, starting the irradiation processing facility safety system.
In one embodiment, the emergency stop safety unit comprises a plurality of emergency stop buttons, the emergency stop buttons are connected in parallel, the emergency stop buttons are arranged at least one of the irradiation room and the host room, and the emergency stop buttons are used for cutting off a main power switch of the electronic accelerator.
In one embodiment, the system further comprises a monitoring subsystem, wherein the monitoring subsystem comprises a plurality of imaging units, and the imaging units are respectively arranged at the door of the irradiation room, the door of the host room, the control room and the wire winding and unwinding site and are used for monitoring the access condition of personnel.
In one embodiment, the system further comprises an illumination subsystem, wherein the illumination subsystem comprises at least one of an illumination lamp and a safety exit indicator, the illumination lamp is used for being extinguished when a lead door is closed and an irradiation processing facility safety system is established, and is lightened when the lead door is opened, and the safety exit indicator is arranged in an irradiation room and a host computer room and used for emergency indication when power failure occurs suddenly.
Above-mentioned irradiation processing facility safety system, through setting up multistage safety device, including one-level safety device, second grade safety device and tertiary safety device, with electron accelerator interlocking work, form the redundant interlocking protection of multiple level to adopt the PLC procedure to carry out signal interaction between safety device and electron accelerator, ensure the timely action of irradiation processing facility safety system, make electron accelerator can reliably shut down, avoid the personnel mistake of unknowing to go into irradiation room or host computer room and receive the irradiation. The irradiation processing facility safety system is provided with the multi-stage safety device, can control the starting and stopping of the electron accelerator at multiple angles and in all directions, and can effectively protect the safety of personnel, and the safety and reliability are extremely high.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment of an irradiation processing facility safety system;
FIG. 2 is a schematic diagram of another embodiment of an irradiation processing facility safety system;
FIG. 3 is a schematic diagram of an embodiment of an electrical cabinet of a security system;
FIG. 4 is a block diagram of an embodiment of an irradiation processing facility safety system protection.
Detailed Description
In order to facilitate an understanding of the present invention, a more complete description of the irradiation processing facility safety system will now be provided with reference to the associated figures. Preferred embodiments of the irradiation processing facility safety system are shown in the drawings. The irradiation process facility safety system may be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of these embodiments is to provide a more thorough and complete disclosure of the radiation processing facility safety system.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the radiation processing facility safety system is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to FIG. 1, in one embodiment, an irradiation processing facility safety system is provided that includes a primary safety device 102, a secondary safety device 104, a tertiary safety device 106, and a PLC control device 112. The primary safety device 102 is electrically connected with the PLC control device 112, the primary safety device 102 and a switch of the electronic accelerator are interlocked, the secondary safety device 104 and a main contactor of a frequency conversion cabinet of the electronic accelerator are interlocked, and the tertiary safety device 106 and a main power switch of the electronic accelerator are interlocked. The primary safety device 102 is used for controlling the electron accelerator through the PLC control device 112, the secondary safety device 104 is used for detecting whether the irradiation dose exceeds the standard and whether personnel pass through, and the tertiary safety device 106 is used for cutting off the total power supply of the irradiation processing facility so as to cut off the power supply of the irradiation processing facility.
If the primary safety device 102 fails, the secondary safety device 104 and/or the tertiary safety device 106 can still initiate the protection measures, and if the secondary safety device 104 fails, the tertiary safety device 106 can still initiate the protection measures. The adoption of the multi-level redundancy interlocking system protects personnel safety, and greatly improves the shutdown reliability of the electron accelerator.
Specifically, the output end of the primary safety device 102 is electrically connected to the input end of the PLC control device 112, and the output end of the PLC control device 112 is electrically connected to the input end of the electronic accelerator. After the primary safety device 102, the secondary safety device 104 and the tertiary safety device 106 are started, if the primary safety device 102 meets a preset alarm requirement, an alarm signal is sent to the PLC control device 112, the PLC control device 112 receives the alarm signal, generates a control instruction according to the alarm signal, and sends the control instruction to the electronic accelerator to control the stop of the electronic accelerator. If the secondary safety device 104 and the tertiary safety device 106 meet the respective preset alarm requirements, a control signal is output through the logic circuit to control the electronic accelerator to stop. It should be noted that the preset alarm requirement is that the primary safety device 102, the secondary safety device 104 and the tertiary safety device 106 are based on the detected information, and the information meets the requirement of the alarm state. The electronic accelerator is controlled by the PLC program, the first-stage safety device 102 is high in safety protection reliability and high in anti-interference capability, the PLC program is easy to learn and use, functions are perfect, transformation is easy, and operability of technicians is facilitated.
The PLC control device 112 further includes a display unit corresponding to the primary safety device 102, for displaying whether the primary safety device 102 can work normally. Further, the safety devices can be classified into 3 levels of safety devices according to the level of safety reliability, the safety reliability of the third level safety device 106 is highest, the safety reliability of the first level safety device 102 is lower, and the safety reliability of the second level safety device 104 is located between the two safety devices. The primary safety device 102 and the switch of the electronic accelerator are interlocked, the secondary safety device 104 and the main contactor of the frequency conversion cabinet of the electronic accelerator are interlocked, and the tertiary safety device 106 and the main power switch of the electronic accelerator are interlocked. It can be seen that the higher the safety reliability, the greater the safety protection measure force of the safety device, the better the safety protection effect, and the more effective the personnel safety. The electronic accelerator power supply is divided into a main power supply loop and a control power supply loop, and the electronic accelerator frequency conversion cabinet is the main power supply loop for controlling the electronic accelerator, and when the main power supply loop is powered off, the electronic accelerator is stopped immediately.
It can be understood that if the primary safety device 102 fails, that is, the primary safety device 102 cannot achieve the purpose of protecting personnel safety, the secondary safety device 104 or the tertiary safety device 106 can still start protection measures to protect personnel safety, for example, the primary safety device 102 fails, and at this time, the secondary safety device 104 can also shut down the electronic accelerator by switching off the main contactor of the frequency conversion cabinet of the electronic accelerator or switching off the main power switch of the electronic accelerator by the output of the related logic circuit.
Further, the primary safety device 102 and the switch of the electronic accelerator are interlocked to work, that is, the electronic accelerator can be started only after the primary safety device 102 is started, and once the primary safety device 102 reaches a preset alarm requirement, the electronic accelerator is immediately controlled to stop by a PLC program. The secondary safety device 104 and the main contactor of the frequency conversion cabinet of the electronic accelerator work in an interlocking way, namely when the secondary safety device 104 reaches a preset alarm requirement, the connection between the electronic accelerator and a power supply can be cut off by controlling to cut off the main contactor of the frequency conversion cabinet of the electronic accelerator, so that the electronic accelerator is stopped. The three-stage safety device 106 works in interlocking with the main power switch of the electronic accelerator, namely when the three-stage safety device 106 reaches the preset alarm requirement, the main power of the electronic accelerator can be disconnected, and the electronic accelerator is stopped. The multiple-level safety device is arranged, so that when a certain level of safety device suddenly fails, other safety devices still can achieve the effect of protecting personnel safety, and the safety protection reliability is greatly improved.
Above-mentioned irradiation processing facility safety system, through setting up multistage safety device, including one-level safety device, second grade safety device and tertiary safety device, with electron accelerator interlocking work, form the redundant interlocking protection of multiple level to adopt the operation of PLC program control safety device, ensure the timely action of irradiation processing facility safety system, make electron accelerator can reliably shut down, avoid the personnel mistake of unknowing to go into irradiation room or host computer room and receive the irradiation. The irradiation processing facility safety system is provided with the multi-stage safety device, can control the starting and stopping of the electron accelerator at multiple angles and in all directions, and can effectively protect the safety of personnel, and the safety and reliability are extremely high.
Referring to fig. 2 and 3, in one embodiment, the safety system of the irradiation processing facility further includes a safety system electric control cabinet 122, the safety system electric control cabinet 122 is electrically connected to the PLC control device 112, and the safety system electric control cabinet 122 includes a plurality of buttons for controlling the activation of the primary safety device 102 by the PLC control device 112.
Specifically, the output end of the safety system electric control cabinet 122 is electrically connected to the input end of the PLC control device 112, and the output end of the PLC control device 112 is electrically connected to the input end of the primary safety device 102. The safety system electric control cabinet 122 comprises buttons of three areas of a first floor irradiation room, a second floor main machine room and a pit, and is used for respectively controlling the starting operation of the first floor safety system, the second floor safety system and the pit safety system. The security system of each building includes buttons for a plurality of security elements in the primary security device 102.
Referring to fig. 4, in one embodiment, the primary safety device 102 includes a patrol safety unit, a correlation photoelectric safety unit, a door safety unit, an alarm unit and a signal display unit, wherein the patrol safety unit, the correlation photoelectric safety unit and the door safety unit are respectively electrically connected with the PLC control device 112, and the patrol safety unit, the photoelectric safety unit and the door safety unit are connected in parallel, the alarm unit is connected in series with the patrol safety unit, and the signal display unit is used for displaying whether the irradiation processing facility is running. The secondary safety device 104 comprises a diffuse reflection photoelectric safety unit and an online dose safety unit, wherein the diffuse reflection photoelectric safety unit and the online dose safety unit are electrically connected with a main contactor of the frequency conversion cabinet of the electronic accelerator, and the diffuse reflection photoelectric safety unit is connected with the online dose safety unit in series. The three-stage safety device 106 includes a scram safety unit electrically connected to a main power switch of the electronic accelerator.
Specifically, the output ends of the inspection safety unit, the correlation photoelectric safety unit and the door safety unit are connected with the input end of the PLC control device 112, and the inspection safety unit, the correlation photoelectric safety unit and the door safety unit are connected in parallel, so that the operations of the inspection safety unit, the correlation photoelectric safety unit and the door safety unit do not influence each other. The flute safety unit is connected in series with the inspection safety unit, and alarms when the inspection safety unit is inspected. The signal display unit comprises a plurality of warning lamps and is electrically connected with the electronic accelerator and used for reminding people whether the irradiation processing facility operates or not. Further, after the electronic accelerator is started, the warning lamp which is turned on and is forbidden to enter is turned on, and after the electronic accelerator is stopped, the warning lamp which is turned off and allowed to enter is turned on. The diffuse reflection photoelectric safety unit and the online dose safety unit are connected with a relay together, when the diffuse reflection photoelectric safety unit detects that a person passes through and the online dose safety unit detects that the irradiation dose is larger than a preset value, the irradiation processing facility safety system starts a protection measure, and the diffuse reflection photoelectric safety unit and the online dose safety unit send an alarm signal to control the main contactor of the frequency conversion cabinet of the electronic accelerator to be disconnected, so that the electronic accelerator is stopped. The emergency stop safety unit is electrically connected with a main power switch of the electronic accelerator, and a power cabinet of the electronic accelerator can be powered off after the emergency stop safety unit is started.
In one embodiment, the inspection safety unit comprises a plurality of inspection buttons, each inspection button is respectively connected with an inspection button indicator light on the PLC control device 112, the inspection buttons are arranged at one or more positions of the irradiation room, the host room and the pit, and when each inspection button is pressed and pulled up again, the irradiation processing facility safety system can be established.
Specifically, the inspection operation includes inspecting one or more of the three areas of the first floor irradiation room, the second floor main room and the pit. The first-floor irradiation room is a product cross-linking area, the second-floor main room is an electron accelerator main machine installation area, and the pit is an irradiated product in-out winding area. The inspection buttons are arranged in different directions in the first floor irradiation room, the second floor main machine room and the pit, and the inspection action of each inspection button is calculated only when the two actions of respectively pressing and pulling up the inspection buttons are finished together according to the set sequence, such as the sequence from indoor to outdoor. After the inspection action of each inspection button is finished, an inspection signal is sent to the irradiation processing facility, and when the irradiation processing facility receives the inspection signal, the irradiation processing facility safety interlocking system can be established. When the patrol button is pressed or lifted up, the patrol button indication lamp on the PLC control device 112 is turned on and off.
Further, the first floor irradiation room is divided into an irradiation room lead door inner area and an irradiation room lead door outer area, wherein a plurality of inspection buttons, for example, 3, 5 or 7 inspection buttons, can be arranged in the irradiation room lead door inner area, and one or more inspection buttons are arranged in the irradiation room lead door outer area. Similarly, the second-floor main machine room is also divided into a main machine room lead door outer area and a main machine room lead door inner area, and one or more inspection buttons are respectively arranged. One or more inspection buttons are arranged in the pit area.
The PLC control device 112 may include a PLC master controller, a first extension module of the PLC, and a second extension module of the PLC. The output end of the inspection button in the irradiation room lead door inner area is connected with the input end of the main controller of the PLC, optionally, the main controller of the PLC can be a CPU222, the output end of the inspection button in the irradiation room lead door outer area is connected with the input end of the first expansion module of the PLC, optionally, the first expansion module of the PLC can be an EM223DC. The output end of the inspection button in the area outside the lead door of the host computer room is connected with the input end of the second expansion module of the PLC, the output end of the inspection button in the area inside the lead door of the host computer room is connected with the input end of the second expansion module of the PLC, and the output ends of other inspection buttons are connected with the input end of the first expansion module of the PLC.
Still further, the alarm unit includes a plurality of alarm sirens, when the inspection is started, the alarm sirens start to alarm, when the inspection is completed, the alarm sound disappears, the indication lamps of the first floor system, the second floor system and the pit system of the security system electric control cabinet 122 are turned on, and the security system operation lamps at the tops of the first floor irradiation room and the second floor main machine room lead door are also turned on. When the electronic accelerator is started, the alarm whistle can give a starting sound alarm.
In one embodiment, the door safety unit comprises a plurality of door switches for controlling the opening and closing of the door, the door switches are connected with door switch indicator lights on the PLC control device 112, the door switches are provided with a short-circuit prevention system for preventing the short circuit of the door system line, the door switches are arranged at the entrance of the lead door, the lead door comprises at least one of a lead door of an irradiation room, a lead door of a host room and a pit lead shielding cover, and if the lead door is not closed, the irradiation processing facility safety system cannot be established.
Specifically, when someone pulls the door switch or opens and closes the lead door, the corresponding entrance guard switch indicator light on the PLC control device 112 goes off and flashes, or the entrance guard indicator light on the panel of the security system electric control cabinet 122 flashes. An entrance guard switch is arranged at the entrance of the lead door, when the lead door is not closed, the irradiation processing facility safety system cannot be established, and the electron accelerator cannot be started. The lead door comprises a lead door of a first-floor irradiation room and a lead shielding cover of a pit manhole, wherein the lead door of a second-floor main machine room is respectively provided with one lead door.
Further, the first floor irradiation room is connected with the Door1, the second floor main machine room is connected with the Door2, and the pit is connected with the Door3. When The electronic accelerator is started, the alarm whistle has a starting sound alarm, a red alarm board at The top of The lead door is turned on and is forbidden to enter, at The moment, if one opens at least one of The lead door of The irradiation room, the lead door of The host room and The lead shielding cover of The pit, the computer main screen of The electronic accelerator correspondingly displays The door1 is open,The door2 is open or The door3 is open, and meanwhile, the PLC control device 112 controls The electronic accelerator to stop. When The safety system running lights at The tops of The first-floor and second-floor lead doors are on, the electronic accelerator main computer screen does not display alarm information such as The door1 is open,The door2 is open,The door3 is open. Alternatively, a "care ionizing radiation" warning board is installed at each lead door opening and at a necessary position, which may be an electron accelerator, at least 3 "care ionizing radiation" warning boards are installed at the electron accelerator.
Preferably, when each inspection button is pressed and pulled up again from the indoor to the outdoor according to the set sequence, and the lead door is closed, the irradiation processing facility safety system can be established.
In one embodiment, the correlation type photoelectric safety unit comprises a plurality of correlation type photoelectric switches, the correlation type photoelectric switches are connected with correlation type photoelectric switch indication lamps on the PLC control device 112, and the correlation type photoelectric switches are arranged at the passages of the irradiation room and the host computer room and used for detecting that if a person passes through, the irradiation processing facility safety system is started.
Specifically, the output end of the correlation type photoelectric switch of the first floor irradiation room is connected with one input pin of the input end of the main controller of the PLC, and meanwhile, one output pin of the output end of the main controller of the PLC is connected with the correlation type photoelectric switch indicator lamp. When a person approaches the correlation type photoelectric switch, the correlation type photoelectric switch sends a signal of detecting the person to the PLC control device 112, the PLC control device 112 receives the signal and controls the electronic accelerator to stop, meanwhile, the photoelectric switch indicator lamp is lightened, and otherwise, the photoelectric switch indicator lamp is extinguished. In addition, the safety system electric control cabinet 122 also includes an opposite-type photoelectric switch indicator lamp, and when the opposite-type photoelectric switch detects that a person is present, the opposite-type photoelectric switch indicator lamp on the safety system electric control cabinet 122 also becomes bright.
Further, the labyrinth passages of the first-floor irradiation room and the second-floor main machine room are respectively provided with correlation photoelectric switches, the number of the photoelectric switches is 4, two different brands are divided into two groups, one group is respectively one from top to bottom, the upper mounting distance is 1 meter high from the ground, the lower mounting distance is 0.5 meter high from the ground, the difference between the heights is 0.5 meter, and the distance between the front and back of the two groups is 0.5 meter. If personnel pass, the irradiation processing facility safety system starts a protection measure, the electron accelerator cannot be started, or the started electron accelerator is immediately stopped. The corridor refers to a labyrinth corridor of an irradiation room or a main machine room after the lead door enters, and the labyrinth corridor comprises a first-floor irradiation room corridor and a second-floor main machine room corridor.
In one embodiment, the online dose safety unit comprises an online dosimeter and a dose alarm element electrically connected with the online dosimeter, the online dosimeter comprises an irradiation dose display unit for displaying irradiation dose values of surrounding environment, and the online dosimeter and the dose alarm element are arranged at the aisle of the irradiation room and the host room. The diffuse reflection photoelectric safety unit comprises a plurality of diffuse reflection photoelectric switches and a prompting lamp connected with the diffuse reflection photoelectric switches, and the diffuse reflection photoelectric switches and the prompting lamp connected with the diffuse reflection photoelectric switches are arranged at the corridor of the irradiation room and the host room. And if the online dosimeter detects that the irradiation dose of the surrounding environment exceeds a preset threshold value and the diffuse reflection photoelectric switch detects that a person passes through, starting an irradiation processing facility safety system.
Specifically, the diffuse reflection photoelectric switches are connected in parallel, each diffuse reflection photoelectric switch is in a normally open state, and when a person passes through the diffuse reflection photoelectric switch, the diffuse reflection photoelectric switch is closed. The diffuse reflection photoelectric switch is electrically connected with the dosage alarm element, and the dosage alarm element is electrically connected with a relay. Firstly, if someone moves nearby the diffuse reflection photoelectric switch, the diffuse reflection photoelectric switch prompts the lamp to flash, and meanwhile, when the indoor irradiation dose measured by the online dosimeter is higher than a preset threshold value, the dose alarm element is in an alarm state, the irradiation processing facility safety system starts protection measures, and the main contactor of the frequency conversion cabinet of the electronic accelerator is cut off, so that the electronic accelerator is stopped. When the dose alarm is not on, the electron accelerator cannot be started. Optionally, the preset threshold of the dose alarm element is 2.0usv/h to 2.5usv/h.
Further, when the electronic accelerator is not started, whether the display value of the online dosimeter is an indoor environment background value or not is observed, the display value of the online dosimeter is about 0.15 usv/h-0.23/usv/h, and when the electronic accelerator is started, the display value of the online dosimeter is far greater than the environment background value, so that the online dosimeter is proved to work normally.
In one embodiment, the emergency stop safety unit comprises a plurality of emergency stop buttons, the emergency stop buttons are connected in parallel, the emergency stop buttons are arranged at least one of the irradiation room and the main machine room, and the emergency stop buttons are used for cutting off a main power switch of the electronic accelerator.
Specifically, the emergency stop button is electrically connected with a main power switch of the electronic accelerator, and when the emergency stop buttons of the first-floor irradiation room and the second-floor main machine room are pressed, the irradiation processing facility safety system starts protection measures to enable a power cabinet of the electronic accelerator to be powered off. By arranging the emergency stop buttons in different directions in the irradiation room hall and the host computer room, when the emergency stop buttons are pressed, the whole irradiation processing facility system is immediately stopped, and the safety of personnel is extremely efficiently protected.
In one embodiment, the system further comprises a monitoring subsystem, wherein the monitoring subsystem comprises a plurality of imaging units, and the imaging units are respectively arranged at the door of the irradiation room, the door of the host computer room, the control room and the wire winding and unwinding site and are used for monitoring the access condition of personnel.
Specifically, imaging units are installed at the gate and the periphery of each electron accelerator and used for monitoring the personnel access condition. Each electronic accelerator is provided with a video host of a monitoring subsystem, and the imaging unit has four paths and has a video function. Alternatively, the imaging unit may be one or more cameras. The control room is a room where an operator operates equipment, and the safety system electronic control cabinet 122 and the electronic accelerator operation computer are placed in the room, and the pay-off and take-up machine is an under-beam process control equipment and is placed in a process operation area. These two areas are where the device is often operated.
In one embodiment, the system further comprises an illumination subsystem, wherein the illumination subsystem comprises at least one of an illumination lamp and a safety exit indicator, the illumination lamp is used for being extinguished when the lead door is closed and the safety system of the irradiation processing facility is established, the lead door is on when the lead door is opened, and the safety exit indicator is arranged in the irradiation room and the host computer room and used for emergency indication when power failure occurs suddenly.
In particular, the lighting fixture may comprise a chang-bang lamp, the first floor irradiation room being provided with one or more chang-bang lamps, which are lit when the lighting power supply is on. The illumination lamps are arranged at different positions of the irradiation room and the main machine room and are electrically connected with the lead door, and the illumination lamps are turned off when the lead door is closed and the safety system of the irradiation processing facility is built, and are turned on when the lead door is opened. The lighting lamp is installed by using a 304 stainless steel installation box (120 mm is equal to 50mm, and the thickness of a stainless steel plate is 1 mm), a lamp cap of the lighting lamp is fixed on the 304 stainless steel installation box so as to be installed on a wall body, and optionally, the lighting lamp adopts a 150W self-ballasted high-pressure mercury lamp. One or more safety exit indication boards are respectively arranged in the first floor irradiation room and the second floor main machine room, and the emergency exit indication boards are used for emergency indication when sudden power failure occurs.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. An irradiation process facility safety system, the irradiation process facility safety system comprising:
The electronic accelerator frequency conversion cabinet comprises a primary safety device (102), a secondary safety device (104), a tertiary safety device (106) and a PLC (programmable logic controller) control device (112), wherein the primary safety device (102) is electrically connected with the PLC control device (112), the primary safety device (102) and a switch of the electronic accelerator are interlocked, the secondary safety device (104) and a main contactor of the electronic accelerator frequency conversion cabinet are interlocked, and the tertiary safety device (106) and a main power switch of the electronic accelerator are interlocked;
The primary safety device (102) is used for controlling the electron accelerator through the PLC control device (112), the secondary safety device (104) is used for detecting whether the irradiation dose exceeds the standard and whether personnel pass through, and the tertiary safety device (106) is used for cutting off the total power supply of the irradiation processing facility to cut off the power of the irradiation processing facility;
the primary safety device (102) comprises a patrol safety unit, an opposite-type photoelectric safety unit, a door safety unit, an alarm unit and a signal display unit, wherein the patrol safety unit, the opposite-type photoelectric safety unit and the door safety unit are respectively and electrically connected with the PLC control device (112), the patrol safety unit, the photoelectric safety unit and the door safety unit are connected in parallel, the alarm unit is connected with the patrol safety unit in series, and the signal display unit is used for displaying whether an irradiation processing facility operates;
The secondary safety device (104) comprises a diffuse reflection photoelectric safety unit and an online dosage safety unit, wherein the diffuse reflection photoelectric safety unit and the online dosage safety unit are electrically connected with a main contactor of an electronic accelerator frequency conversion cabinet, and the diffuse reflection photoelectric safety unit is connected with the online dosage safety unit in series;
The three-level safety device (106) comprises a scram safety unit, and the scram safety unit is electrically connected with a main power switch of the electronic accelerator;
the system further comprises a safety system electric control cabinet (122), wherein the safety system electric control cabinet (122) is electrically connected with the PLC control device (112), the safety system electric control cabinet (122) comprises a plurality of buttons, and the buttons are used for controlling the starting of the primary safety device (102) through the PLC control device (112).
2. The irradiation processing facility safety system according to claim 1, wherein the inspection safety unit comprises a plurality of inspection buttons, each inspection button is respectively connected with an inspection button indicator lamp on the PLC control device (112), the inspection buttons are arranged at one or more positions of the irradiation room, the host room and the pit, and the irradiation processing facility safety system can be established when each inspection button is pressed and pulled up again.
3. The irradiation processing facility safety system according to claim 1, wherein the door safety unit comprises a plurality of door switches for controlling the opening and closing of the door, the door switches are connected with door switch indication lamps on the PLC control device (112), the door switches are provided with a short-circuit prevention system for preventing short-circuit of a circuit of the door control system, the door switches are arranged at the entrance of a lead door, and the lead door comprises at least one of a lead door of an irradiation room, a lead door of a main room and a lead shielding cover of a pit.
4. The irradiation processing facility safety system according to claim 1, wherein the correlation photoelectric safety unit comprises a plurality of correlation photoelectric switches, the correlation photoelectric switches are connected with correlation photoelectric switch indication lamps on a PLC control device (112), and the correlation photoelectric switches are arranged at passages of an irradiation room and a host room and used for detecting that if a person passes through, the irradiation processing facility safety system is started.
5. The irradiation processing facility safety system according to claim 1, wherein the online dose safety unit comprises an online dosimeter and a dose alarm element electrically connected to the online dosimeter, the online dosimeter comprising an irradiation dose display unit for displaying irradiation dose values of the surrounding environment, the online dosimeter and the dose alarm element being arranged at an aisle of an irradiation chamber, a mainframe chamber;
the diffuse reflection photoelectric safety unit comprises a plurality of diffuse reflection photoelectric switches and prompt lamps connected with the diffuse reflection photoelectric switches, and the diffuse reflection photoelectric switches and the prompt lamps connected with the diffuse reflection photoelectric switches are arranged at the corridor of the irradiation room and the host room;
And if the online dosimeter detects that the irradiation dose of the surrounding environment exceeds a preset threshold value and the diffuse reflection photoelectric switch detects that a person passes through, starting the irradiation processing facility safety system.
6. The irradiation processing facility safety system according to claim 1, wherein the emergency stop safety unit comprises a plurality of emergency stop buttons connected in parallel, the emergency stop buttons being provided at least one of the irradiation room and the main machine room, the emergency stop buttons being used for turning off a total power switch of the electron accelerator.
7. The irradiation processing facility safety system of claim 1, further comprising a monitoring subsystem comprising a plurality of imaging units disposed at the irradiation booth door, the mainframe room door, the control room, and the take-up and pay-off site, respectively, for monitoring personnel access.
8. The irradiation processing facility safety system of claim 1, further comprising an illumination subsystem including at least one of an illumination light fixture for extinguishing when the lead door is closed and the irradiation processing facility safety system is established and a safety exit sign for lighting when the lead door is opened, the safety exit sign being disposed in the irradiation room and the host room for emergency indication in the event of a sudden power outage.
9. The irradiation processing facility safety system of claim 1, wherein the PLC control device comprises a PLC master controller, a first expansion module of the PLC, and a second expansion module of the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102567.8A CN110109408B (en) | 2018-02-01 | 2018-02-01 | Irradiation processing facility safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102567.8A CN110109408B (en) | 2018-02-01 | 2018-02-01 | Irradiation processing facility safety system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110109408A CN110109408A (en) | 2019-08-09 |
| CN110109408B true CN110109408B (en) | 2024-11-29 |
Family
ID=67483633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102567.8A Active CN110109408B (en) | 2018-02-01 | 2018-02-01 | Irradiation processing facility safety system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110109408B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276274B (en) * | 2020-04-03 | 2021-08-24 | 西南科技大学 | A high-efficiency automatic irradiation device |
| CN111290009A (en) * | 2020-04-16 | 2020-06-16 | 安徽省辐射环境监督站 | Multipath interlocking control system of gamma irradiation chamber |
| CN114532475A (en) * | 2020-11-19 | 2022-05-27 | 广州迪克医疗器械有限公司 | New coronavirus sterilizing and disinfecting device and sterilizing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207742555U (en) * | 2018-02-01 | 2018-08-17 | 山西壹泰科电工设备有限公司 | Irradiation processing installation security system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007032827A1 (en) * | 2006-01-12 | 2009-01-15 | Phoenix Contact Gmbh & Co. Kg | Safety device for multi-channel control of a safety device |
| CN201259624Y (en) * | 2008-03-31 | 2009-06-17 | 德阳市同佳环保科技有限责任公司 | PLC controlled ray chamber safety interlocking system |
| CN101571711B (en) * | 2008-04-28 | 2010-12-15 | 同方威视技术股份有限公司 | Monitoring system used in open radiation place |
| DE202011109688U1 (en) * | 2011-12-31 | 2012-03-01 | Raik Stiebert | Safety-related design and activation of photovoltaic systems and safety-related grounding of extinguishing equipment |
| CN204406586U (en) * | 2015-03-03 | 2015-06-17 | 威胜电气有限公司 | Indicator automatic detecting table high-voltage safety protection control system |
| CN206039759U (en) * | 2016-09-26 | 2017-03-22 | 国网四川省电力公司天府新区供电公司 | A high-voltage test personal safety protection system |
| CN106597972B (en) * | 2017-01-19 | 2019-05-17 | 东软医疗系统股份有限公司 | Tele-control system |
-
2018
- 2018-02-01 CN CN201810102567.8A patent/CN110109408B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207742555U (en) * | 2018-02-01 | 2018-08-17 | 山西壹泰科电工设备有限公司 | Irradiation processing installation security system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110109408A (en) | 2019-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101064867B1 (en) | Water / distribution panel, MCC, distribution panel equipped with safety management and artificial intelligence voice alarm device and two-dimensional temperature sensing device | |
| KR100964544B1 (en) | Switchgear with safety device | |
| CN110109408B (en) | Irradiation processing facility safety system | |
| US7471195B2 (en) | Emergency power shutdown management system | |
| CN103010889B (en) | Detection alarm device and implementation method that hoistway door is opened extremely | |
| KR101817940B1 (en) | Abnormality monitering system using dual image camera and method thereof | |
| CN106223775B (en) | One kind crosses over fire prevention zone method, apparatus and system | |
| CN116643519A (en) | Open type ray device operation safety monitoring system | |
| CN216855561U (en) | Intelligent fire-fighting system of electric power shelter | |
| CN206235864U (en) | A kind of substation monitoring system | |
| CN207612125U (en) | Intelligent auxiliary system for traction power supply of electrified railway | |
| CN106600889A (en) | Indoor safety protection system and safety protection method thereof | |
| CN207742555U (en) | Irradiation processing installation security system | |
| CN104574810A (en) | Infrared safety monitoring device and device for safety protection during high-voltage test | |
| CN111290009A (en) | Multipath interlocking control system of gamma irradiation chamber | |
| CN207503403U (en) | A kind of public place fire alarm system | |
| CN213875998U (en) | Panoramic visualization mutual inductor laboratory safety early warning system | |
| CN209946698U (en) | Safety interlocking device of cyclotron | |
| KR200268301Y1 (en) | Opening and closing control unit of door | |
| KR100549210B1 (en) | Emergency exit automatic switchgear and method | |
| CN115483614B (en) | Intelligent control device for preventing electric shock of electrified armored switch cabinet from being wrongly entered and control method thereof | |
| CN213679336U (en) | Elevator waiting hall emergency passage safety door opening and closing real-time monitoring voice alarm system | |
| KR200484606Y1 (en) | Key box for emergency | |
| KR200241032Y1 (en) | Apparatus for opening and shutting automatically an emergency exit | |
| CN211555014U (en) | Escape gate circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |