Radioactive source release and recovery device

Abstract

The invention discloses a radioactive source release and recovery device, which relates to the technical field of radioactive substance emission and is simple and reasonable in structure, small in overall size and convenient to carry and use. A shielding shell is designed by adopting a steel lead material, so that the radioactive source is independently stored, and the possibility of damaging the radioactive source is reduced; the radioactive source is controlled to be opened and closed in an electric control mode, and the irradiation dose borne by laying personnel is reduced. And a built-in RTK module realizes real-time positioning of the radioactive source and prevents the radioactive source from being lost.

Description

Technical Field

[0001] The invention relates to the technical field of radioactive material emission, and in particular to a radioactive source release and recovery device capable of realizing remote opening and closing of a radioactive source. Background Art

[0002] A radioactive source is a general term for a radiation source made of radioactive materials. The strength of a radioactive source is generally marked by the activity of the radioactive nuclides it produces, or by the radiation emission rate or the fluence rate. It is customary to refer to a high-activity or high-radiation emission rate radioactive source used in non-destructive testing, radiotherapy, and radiation treatment as a radiation source. Radiation application technology based on radioactive sources is widely used in the fields of industry, agriculture, medicine, resources, environment, military, scientific research, etc.

[0003] As a signal source, radioactive sources are used in many fields. However, in the prior art, radioactive sources need to be manually deployed during transportation and use. During the manual deployment process, operators are easily exposed to large doses of radiation.

[0004] At the same time, after the radioactive source is deployed, its position cannot be located in real time. When the radioactive source is lost, it is very difficult to find it.

[0005] In addition, radioactive sources stored exposedly are prone to damage during use. Summary of the invention

[0006] In view of the above problems, the present invention provides a radioactive source release and recovery device for overcoming the above problems or at least partially solving the above problems.

[0007] The present invention provides the following scheme:

[0008] A radioactive source release and recovery device, comprising:

[0009] A housing, wherein a first inlet and outlet are arranged on the top of the housing;

[0010] A radiation source unit, the radiation source unit comprising a radiation source chamber, a rotation drive assembly and a radiation source assembly; the radiation source chamber is surrounded by a plurality of lead plates and is located inside the housing, a second inlet and outlet are provided on the top of the radiation source chamber; the rotation drive assembly is cooperatively connected with the radiation source assembly;

[0011] Among them, the radiation source assembly includes a radiation source fixing block, a radiation source body and a lead shielding cover plate; the radiation source body and the lead shielding cover plate are both connected to the radiation source fixing block and are located on different surfaces of the radiation source fixing block, and the driving assembly is used to drive the radiation source fixing block to rotate to achieve switching between a working state and a storage state; in the working state, the radiation source body extends to the outside of the outer shell through the second inlet and the first inlet; in the storage state, the radiation source body enters the interior of the radiation source bin and the lead shielding cover plate blocks the first inlet and outlet.

[0012] Preferably, in the working state, the radiation emitted by the radiation source body covers a solid angle of 2πsr.

[0013] Preferably, the thickness of the lead plate and the lead shielding cover plate is not less than 4.5 cm, so that the dose on the outer surface of the shell in the stored state is not greater than 10 μsv / h.

[0014] Preferably: the driving assembly includes a rotating motor, a driving gear and a driven gear; the rotating motor is located in the radiation source compartment, the driving shaft of the rotating motor passes through the radiation source compartment and is connected to the driving gear, the radiation source fixing block is connected to the driven gear via a connecting shaft passing through the radiation source compartment, and the driven gear is meshedly connected to the driving gear.

[0015] Preferably: an electrical compartment is further provided inside the housing, and a battery module and a motor control board are provided inside the electrical compartment; the battery module is connected to the motor control board, and the motor control board is connected to the rotating motor.

[0016] Preferably: the electrical appliance compartment also includes a main control module, a positioning module and a self-organizing network module;

[0017] The positioning module, the self-organizing network module and the main control module are all connected to the battery module; the positioning module and the self-organizing network module are all connected to the main control module; the main control module is used to collect the longitude and latitude information received by the positioning module, and transmit the longitude and latitude information to the environment generation vehicle through the self-organizing network module.

[0018] Preferably: the positioning module includes an RTK positioning module, and the ad hoc network module includes a LoRa ad hoc network module; the main control module is used to transmit the longitude and latitude information to the environment generation vehicle through the LoRa ad hoc network module at a frequency of 5 minutes.

[0019] Preferably: it also includes a battery charging management module; the battery charging management module is connected to the main control module; the main control module is also used to collect the power of the battery module through a built-in analog-to-digital converter through voltage division.

[0020] Preferably: the main control module is also connected to a communication interface, and the communication interface is used to control the device in the radiation source cabinet to be in a dormant state or in a working state.

[0021] Preferably: it also includes a trigger button located on the shell, the trigger button is connected to the main control module, and the main control module is also used to control the working state of the rotating motor through the motor control board according to the trigger state of the trigger button, so as to realize the control of switching the radiation source fixing block between the working state and the storage state.

[0022] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0023] The embodiment of the present application provides a radioactive source release and recovery device, which has a simple and reasonable structure, a small overall size, and is easy to carry and use. The shielding shell is designed with steel and lead materials to achieve the separate storage of the radioactive source and reduce the possibility of damage to the radioactive source; the opening and closing of the radioactive source is controlled by electric control to reduce the radiation dose received by the deployment personnel. The built-in RTK module realizes the real-time positioning of the radioactive source and prevents the loss of the radioactive source.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of a radioactive source release and recovery device provided by an embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a radioactive source release and recovery device in working state provided by an embodiment of the present invention;

[0028] Figure 3 It is a structural schematic diagram of a radioactive source release and recovery device in a storage state provided by an embodiment of the present invention;

[0029] Figure 4It is an electrical system diagram of a radioactive source release and recovery device provided in an embodiment of the present invention.

[0030] In the figure: housing 1, radiation source unit 2, radiation source compartment 21, rotation drive assembly 22, driving gear 221, driven gear 222, radiation source fixing block 23, radiation source body 24, lead shielding cover 25, electrical compartment 3, battery module 31, main control module 32, positioning module 33, ad hoc network module 34, battery charging management module 35, communication interface 36, trigger button 4. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , a radioactive source release and recovery device provided by an embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the device may include:

[0033] A housing 1, wherein a first inlet and outlet are provided at the top of the housing 1;

[0034] A radiation source unit 2, the radiation source unit 2 comprising a radiation source compartment 21, a rotation drive assembly 22 and a radiation source assembly; the radiation source compartment 21 is surrounded by a plurality of lead plates and is located inside the housing 1, and a second inlet and outlet are provided on the top of the radiation source compartment 21; the rotation drive assembly 22 is cooperatively connected with the radiation source assembly;

[0035] Among them, the radiation source assembly includes a radiation source fixing block 23, a radiation source body 24 and a lead shielding cover 25; the radiation source body 24 and the lead shielding cover 25 are both connected to the radiation source fixing block 23 and are located on different surfaces of the radiation source fixing block 23, and the driving assembly is used to drive the radiation source fixing block 23 to rotate to achieve switching between a working state and a storage state; in the working state, the radiation source body 24 extends to the outside of the outer shell 1 through the second inlet and outlet and the first inlet and outlet; in the storage state, the radiation source body 24 enters the interior of the radiation source bin 21 and the lead shielding cover 25 blocks the first inlet and outlet.

[0036] The radiation source release and recovery device provided in the embodiment of the present application uses shielding materials to completely wrap the radiation source, thereby reducing the radiation dose received by the operator; and uses a special mechanical structure to achieve rapid opening and closing of the radiation source.

[0037] In specific implementation, the embodiment of the present application can provide that the radiation emitted by the radiation source body 24 in the working state covers a solid angle of 2πsr. The thickness of the lead plate and the lead shielding cover plate 25 is not less than 4.5 cm, so that the outer surface dose of the housing 1 in the storage state is not greater than 10μsv / h.

[0038] In order to drive the radiation source fixing block 23, the embodiment of the present application may provide that the driving assembly includes a rotating motor, a driving gear 221 and a driven gear 222; the rotating motor is located in the radiation source compartment 21, the driving shaft of the rotating motor passes through the radiation source compartment 21 and is connected to the driving gear 221, the radiation source fixing block 23 is connected to the driven gear 222 via a connecting shaft passing through the radiation source compartment 21, and the driven gear 222 is meshedly connected to the driving gear 221.

[0039] In order to further realize remote control and achieve real-time positioning of the device, the embodiment of the present application can also provide that the interior of the shell 1 is also provided with an electrical compartment 3, and the electrical compartment 3 is provided with a battery module 31 and a motor control board; the battery module 31 is connected to the motor control board, and the motor control board is connected to the rotating motor.

[0040] The electrical appliance compartment 3 also includes a main control module 32, a positioning module 33 and a self-organizing network module 34;

[0041] The positioning module 33, the self-organizing network module 34 and the main control module 32 are all connected to the battery module 31; the positioning module 33 and the self-organizing network module 34 are all connected to the main control module 32; the main control module 32 is used to collect the longitude and latitude information received by the positioning module 33, and transmit the longitude and latitude information to the environment generation vehicle through the self-organizing network module 34.

[0042] Furthermore, the positioning module 33 includes an RTK positioning module, and the ad hoc network module 34 includes a LoRa ad hoc network module; the main control module 32 is used to transmit the longitude and latitude information to the environment generation vehicle through the LoRa ad hoc network module at a frequency of 5 minutes.

[0043] In order to facilitate the collection of battery power, the embodiment of the present application may also provide a battery charging management module 35; the battery charging management module 35 is connected to the main control module 32; the main control module 32 is also used to collect the power of the battery module 31 through a built-in analog-to-digital converter by voltage division.

[0044] Furthermore, the main control module 32 is also connected to a communication interface 36, and the communication interface 36 is used to control the device in the radiation source cabinet to be in a dormant state or in a working state.

[0045] In order to facilitate the control of the working state of the device, the embodiment of the present application may also provide a trigger button 4 located on the shell 1, and the trigger button 4 is connected to the main control module 32. The main control module 32 is also used to control the working state of the rotating motor through the motor control board according to the trigger state of the trigger button 4, so as to realize the control of switching the radiation source fixing block 23 between the working state and the storage state.

[0046] The device provided by this application is introduced in detail below.

[0047] The radioactive source automatic release and recovery device provided in the embodiment of the present application uses a one-way ratchet gear set to rotate the radioactive source to the outside, and can cover a solid angle of 2πsr in the open state. At the same time, it is built-in with an RTK positioning module 33 and a LoRa self-organizing network module 34 to realize real-time positioning and self-organizing network. When the signal transmission time interval is 5 minutes by default, the continuous working time is more than 6 hours.

[0048] The automatic release and recovery device for radioactive sources provided in the embodiment of the present application is mainly composed of an outer shell 1, a radioactive source compartment 21, and an electrical compartment. The upper part is the radioactive source compartment 21 made of lead, which is mainly used to store radioactive sources and realize the recovery and release of radioactive sources; a trigger button 4, a radioactive source, a rotating mechanism, a rotating gear and other components are also provided; the lower part is the electrical compartment, which is mainly used to place electrical components and nuclear batteries, realize self-organizing networking and upload positioning information to an external control platform, and the lower part mainly includes a control panel, a battery and other components.

[0049] The radiation source fixing position, ratchet gear set and other equipment are installed in the radiation source warehouse 21. The exterior of the radiation source warehouse 21 uses high-strength steel as the main frame. At the same time, the ratchet gear set is designed to be shielded with a thickness of 4.5 cm of lead. When the radiation source is in the recovery state, the external surface dose of the entire device can reach 10μsv / h. When the radiation source is turned on, the radiation emitted can cover a solid angle of 2πsr. The electrical warehouse is mainly composed of a power supply, an RTK control board, a self-organizing network communication board, a motor control board, etc., which realizes the automatic opening and closing of the radiation source, and transmits the real-time position information of the radiation source to the back-end monitoring platform through the self-organizing network module 34; a magnetic charging device is set at the bottom of the device to facilitate charging of the device.

[0050] When the radioactive source is not in use, the rotating mechanism is in a retrieving state. When the radioactive source is to be used, the "trigger button 4" is lightly pressed, and the rotating mechanism automatically rotates to eject the radioactive source.

[0051] like Figure 4 As shown, the control core of the automatic release and recovery device for radioactive sources is a domestically produced MCU (main control module 32), the main function of which is to regularly collect the positioning information collected by the positioning module 33, and transmit the positioning information to the environment generation vehicle through the self-organizing network LoRa module at a frequency of 5 minutes. At the same time, the built-in analog-to-digital converter (ADC) in the MCU realizes the collection of battery power through voltage division.

[0052] The positioning module 33 is mainly used to receive the latitude and longitude information of the location of the device. The self-organizing network module 34 is mainly used to realize data interaction with the environment generation vehicle. The battery module 31 is mainly used to provide normal power supply for the MCU, the positioning module 33 and the self-organizing network module 34.

[0053] The battery charging management module 35 is embedded in the battery panel module and is used to monitor whether the battery is fully charged.

[0054] The main function of the communication interface 36 is to control whether the radiation source container is in a dormant state or in a working state when the radiation source container is placed in the radiation source cabinet.

[0055] The working principle of the automatic release and recovery device for radioactive sources provided in the embodiment of the present application is as follows:

[0056] A. The installation personnel place the device at the corresponding position and then turn on the power of the device.

[0057] B. After power-on, the device will automatically perform system self-check and parameter configuration. At this time, the installation personnel can check the operating status of the equipment through the indicator light on the device. When the equipment fails, the red indicator light on the device lights up, and when there is no fault, the green light lights up.

[0058] C. When the device is operating normally, it will automatically communicate with the back-end monitoring platform.

[0059] D. The deployment personnel click on the radiation source opening icon or click on the trigger button 4 on the remote monitoring platform. After receiving the command, the device will automatically turn on or off the radiation source.

[0060] E. The device transmits the location information, power information and status information of the radiation source to the back-end monitoring platform according to the set feedback time.

[0061] F. The battery charging management module 35 inside the device will automatically monitor the remaining power of the device. When the remaining power is less than 5%, the radioactive source will be automatically recovered and the relevant information will be transmitted to the back-end monitoring platform.

[0062] In summary, the radioactive source release and recovery device provided by the present application has a simple and reasonable structure, a small overall size, and is easy to carry and use. The shielding shell is designed with steel and lead materials to achieve the separate storage of the radioactive source and reduce the possibility of damage to the radioactive source; the opening and closing of the radioactive source is controlled by electric control to reduce the radiation dose received by the deployment personnel. The built-in RTK module realizes the real-time positioning of the radioactive source and prevents the loss of the radioactive source.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0064] It can be known from the description of the above implementation methods that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application or certain parts of the embodiments.

[0065] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A radioactive source release and recovery device, characterized in that: include: A housing, wherein a first inlet and outlet are arranged on the top of the housing; A radiation source unit, the radiation source unit comprising a radiation source chamber, a rotation drive assembly and a radiation source assembly; the radiation source chamber is surrounded by a plurality of lead plates and is located inside the housing, a second inlet and outlet are provided on the top of the radiation source chamber; the rotation drive assembly is cooperatively connected with the radiation source assembly; Among them, the radiation source assembly includes a radiation source fixing block, a radiation source body and a lead shielding cover plate; the radiation source body and the lead shielding cover plate are both connected to the radiation source fixing block and are located on different surfaces of the radiation source fixing block, and the driving assembly is used to drive the radiation source fixing block to rotate to achieve switching between a working state and a storage state; in the working state, the radiation source body extends to the outside of the outer shell through the second inlet and the first inlet; in the storage state, the radiation source body enters the interior of the radiation source bin and the lead shielding cover plate blocks the first inlet and outlet.

2. The radioactive source release and recovery device according to claim 1, characterized in that: In the working state, the radiation emitted by the radiation source body covers a solid angle of 2πsr.

3. The radioactive source release and recovery device according to claim 1, characterized in that: The thickness of the lead plate and the lead shielding cover plate is not less than 4.5 cm, so that the dose on the outer surface of the shell in the storage state is not greater than 10 μsv / h.

4. The radioactive source release and recovery device according to claim 1, characterized in that: The driving assembly includes a rotating motor, a driving gear and a driven gear; the rotating motor is located in the radiation source compartment, the driving shaft of the rotating motor passes through the radiation source compartment and is connected to the driving gear, the radiation source fixing block is connected to the driven gear via a connecting shaft passing through the radiation source compartment, and the driven gear is meshedly connected to the driving gear.

5. The radioactive source release and recovery device according to claim 4, characterized in that: An electrical compartment is also provided inside the housing, and a battery module and a motor control board are provided inside the electrical compartment; the battery module is connected to the motor control board, and the motor control board is connected to the rotating motor.

6. The radioactive source release and recovery device according to claim 5, characterized in that: The electrical appliance warehouse also includes a main control module, a positioning module and an ad hoc network module; The positioning module, the self-organizing network module and the main control module are all connected to the battery module; the positioning module and the self-organizing network module are all connected to the main control module; the main control module is used to collect the longitude and latitude information received by the positioning module, and transmit the longitude and latitude information to the environment generation vehicle through the self-organizing network module.

7. The radioactive source release and recovery device according to claim 6, characterized in that: The positioning module includes an RTK positioning module, and the ad hoc network module includes a LoRa ad hoc network module; the main control module is used to transmit the longitude and latitude information to the environment generation vehicle through the LoRa ad hoc network module at a frequency of 5 minutes.

8. The radioactive source release and recovery device according to claim 6, characterized in that: It also includes a battery charging management module; the battery charging management module is connected to the main control module; the main control module is also used to collect the power of the battery module through a built-in analog-to-digital converter by voltage division.

9. The radioactive source release and recovery device according to claim 6, characterized in that: The main control module is also connected to a communication interface, and the communication interface is used to control the device in the radiation source cabinet to be in a dormant state or in a working state.

10. The radioactive source release and recovery device according to claim 6, characterized in that: It also includes a trigger button located on the shell, which is connected to the main control module. The main control module is also used to control the working state of the rotating motor through the motor control board according to the trigger state of the trigger button, so as to achieve control of switching the radiation source fixing block between the working state and the storage state.

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