阅读说明：本技术 一种便于遥控维护的平开门式屏蔽容器系统 (Vertical hinged door type shielding container system convenient for remote control maintenance ) 是由 赵崇光 李治多 马静静 殷雯 于 2020-05-19 设计创作，主要内容包括：本发明涉及核工业技术领域,尤指一种用于运输放射性物体的便于遥控维护的平开门式屏蔽容器系统；平开门式屏蔽容器系统包括屏蔽容器与载重运输系统,所述的屏蔽容器与载重运输系统通过插销机械相连；本发明远程控制载重运输系统将屏蔽容器转移,实现对放射性物体的运输转移,不仅避免放射性物体带来的辐射伤害,并且保证了远程操作人员的人身安全,尤其是屏蔽容器和载重运输系统为分体式设计,底部载重运输系统为固定位置,屏蔽容器的外形和结构设置成便于开闭屏蔽门以及便于遥控维护吊装的独立容器,可以很好的储存放射性物体,并且便于独立运输,降低远程操作的难度；屏蔽容器为平开门式,能够最大限度的提供放射性物品的操作空间。(The invention relates to the technical field of nuclear industry, in particular to a vertical hinged door type shielding container system which is used for transporting radioactive objects and is convenient for remote control maintenance; the side hung door type shielding container system comprises a shielding container and a load transportation system, wherein the shielding container is mechanically connected with the load transportation system through a bolt; the remote control load transportation system transfers the shielding container, realizes the transportation transfer of radioactive objects, avoids the radiation injury caused by the radioactive objects, and ensures the personal safety of remote operators, particularly, the shielding container and the load transportation system are designed in a split type, the bottom load transportation system is a fixed position, the appearance and the structure of the shielding container are set into an independent container which is convenient for opening and closing a shielding door and is convenient for remote control maintenance and hoisting, the radioactive objects can be well stored, the independent transportation is convenient, and the difficulty of remote operation is reduced; the shielding container is of a vertical hinged door type, and can provide operation space for radioactive articles to the maximum extent.)

1. The utility model provides a flat-open door formula shielded container system convenient to remote control is maintained, flat-open door formula shielded container system including shielded container and load transportation system, shielded container pass through bolt machinery with load transportation system and link to each other its characterized in that:

the shielding container comprises a shielding door at the top and a lead box at the bottom, and a middle cavity of the lead box is a storage area of radioactive substances; the shielding door is matched with the lead box through an inclined plane, a matching moving route between the shielding door and the lead box at the bottom is arranged to be a labyrinth structure, and the shielding door and the lead box are fixed through a locking mechanism when the shielding door is closed; when the shielding container vertically falls on the load transportation system, the shielding door is lifted upwards and separated from the bottom lead box by a certain gap, so that the shielding door is convenient to open and close;

the load transportation system comprises a moving mechanism and a control system, wherein the moving mechanism comprises a motor, a driving system, a semi-enclosed U-shaped support connecting structure, a bottom plate support structure, a screw rod transmission system and a linear guide rail, and the motor is arranged on a bottom plate of the bottom plate support structure and is connected with the screw rod transmission system through a coupler; a screw rod nut in the screw rod transmission system is rigidly connected with the U-shaped support connecting structure, and the linear motion of the screw rod transmission system is driven by a driving system arranged in the control room to drive the linear motion of the U-shaped support connecting structure; the linear guide rails are arranged on two sides of the bottom plate and are arranged at the corresponding bottoms of two sides of the U-shaped support connecting structure, and sliding chute structures are arranged at the bottoms of two sides of the U-shaped support connecting structure and are in sliding connection with the linear guide rails; the control system is an upper system controlled by the motor and used for controlling the forward and reverse rotation of the motor and judging the opening and closing state of the shielding door.

2. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: the inner layer of the shielding container is a metal lead layer, and the outer layer of the shielding container is a stainless steel layer.

3. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: the both sides of shield door are provided with the journal stirrup, have seted up the through-hole on the journal stirrup, the journal stirrup be convenient for with the cooperation of the U type of load transport system support connection structure's both sides for U type supports connection structure both sides and can support both sides journal stirrup respectively.

4. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: the motor is a servo motor with an encoder.

5. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: two guide connecting pins are respectively arranged at the tops of the supporting plates at the two sides of the U-shaped supporting and connecting structure and are used for being matched and positioned with through holes in supporting lugs at the two sides of the shielding door.

6. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: the U-shaped supporting and connecting structure surrounds the shielding container on the inner side of the shielding container, so that the shielding container not only supports the weight of the shielding door, but also needs to transmit the force of transverse movement, and the shielding door is opened and closed.

7. The swing door type shielding container system facilitating remote maintenance according to claim 1 or 2, wherein: the shielding container is formed by pouring lead into a stainless steel ladle shell, the inside of the shielding container is a lead layer, the outer surface of the shielding container is a stainless steel cladding, and the thickness of the poured lead is determined according to the radioactivity of a source item.

8. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: the load transportation system realizes the linear motion of the U-shaped supporting and connecting structure through the remote control of the motor.

9. The swing door type shielding container system facilitating remote maintenance according to claim 1, wherein: the matching surface of the shielding door and the bottom lead box is designed to be in a labyrinth form, so that direct radiation is avoided.

Technical Field

The invention relates to the technical field of nuclear industry, in particular to a vertical hinged door type shielding container system which is used for transporting mobile radioactive objects and is convenient for remote control maintenance.

Background

Because scientific research needs continuous development and exploration, many times because the existence of special material or special technology for operational environment has very big radiation, and the radiation can bring irreversible injury to environment and staff's health, so research and development staff can set up operational environment into independent space for the injury that reduces or avoids the radiation to bring, can let the staff remote control maintain the object under the radiation environment. In the working process, the storage of radioactive substances is an important link, the main storage containers are lead barrels and lead boxes, and the lead containers made of lead are not convenient to move and transport due to the fact that the lead containers are generally heavy in weight, so that how to facilitate remote control maintenance in the process of needing remote control maintenance is an important factor for designing shielding containers.

For example, in Boron-Neutron Capture Therapy (BNCT), the BNCT chamber is used to make the high-energy proton beam accelerated by the accelerator bombard the heavy metal target and generate high-energy neutrons through spallation effect, the working environment is an independent environment with radioactive characteristics, the radiation intensity during target changing in the BNCT chamber is large, so the environmental isolation and sealing are ensured, and the technical difficulty of the operation of the inside of the environment is greatly increased due to the radioactivity and sealing, while the BNCT chamber is used in the working area for transporting waste materials generated during BNCT operation, the radiation is strong, the BNCT chamber is configured to transport the environment special for the operator, environment or other equipment in order to reduce the radiation damage of the BNCT chamber to the operator, environment or other equipment to the maximum extent, however, the hoisting work in the BNCT chamber must be completed in the area, therefore, the transportation and hoisting work of the shielding container in the BNCT treatment room is a work with poor operation environment and high operation difficulty, and the contradiction of high load capacity and high remote operation difficulty exists.

Disclosure of Invention

In order to solve the problem of storage and transfer of radioactive substances during remote maintenance of objects in a radiation environment, the invention aims to provide a shielding transfer system, in particular to a vertical hinged door type shielding container system which is specially used for transferring radioactive targets and is convenient for remote maintenance.

The utility model provides a vertical hinged door formula shielded container system convenient to remote control is maintained, vertical hinged door formula shielded container system including shielded container and load transportation system, shielded container and load transportation system pass through bolt machinery and link to each other.

The shielding container comprises a shielding door at the top and a lead box at the bottom, and a middle cavity of the lead box is a storage area of radioactive substances; the shielding door is matched with the lead box through an inclined plane, a matching moving route between the shielding door and the lead box at the bottom is arranged to be a labyrinth structure, and the shielding door and the lead box are fixed through a locking mechanism when the shielding door is closed; when the shielding container vertically falls on the load transportation system, the shielding door is lifted upwards and separated from the bottom lead box by a certain gap, so that the shielding door is convenient to open and close.

The load transportation system comprises a moving mechanism and a control system, wherein the ground moving mechanism comprises a motor, a driving system, a semi-enclosed U-shaped support connecting structure, a bottom plate support structure, a screw rod transmission system and a linear guide rail, and the motor is arranged on a bottom plate of the bottom plate support structure and is connected with the screw rod transmission system through a coupler; a screw rod nut in the screw rod transmission system is rigidly connected with the U-shaped support connecting structure, and the linear motion of the screw rod transmission system is driven by a driving system arranged in the control room to drive the linear motion of the U-shaped support connecting structure; the linear guide rails are arranged on two sides of the bottom plate and are arranged at the corresponding bottoms of two sides of the U-shaped support connecting structure, and sliding chute structures are arranged at the bottoms of two sides of the U-shaped support connecting structure and are in sliding connection with the linear guide rails; the control system is an upper system controlled by the motor and used for controlling the forward and reverse rotation of the motor and judging the opening and closing state of the shielding door.

The inner layer of the shielding container is a metal lead layer, and the outer layer of the shielding container is a stainless steel layer.

The both sides of shield door are provided with the journal stirrup, have seted up the through-hole on the journal stirrup, the journal stirrup be convenient for with the cooperation of the U type of load transport system support connection structure's both sides for U type supports connection structure both sides and can support both sides journal stirrup respectively.

The motor is a servo motor with an encoder.

Two guide connecting pins are respectively arranged at the tops of the supporting plates at the two sides of the U-shaped supporting and connecting structure and are used for being matched and positioned with through holes in supporting lugs at the two sides of the shielding door.

The U-shaped supporting and connecting structure surrounds the shielding container on the inner side of the shielding container, so that the shielding container not only supports the weight of the shielding door, but also needs to transmit the force of transverse movement, and the shielding door is opened and closed.

The shielding container is formed by pouring lead into a stainless steel ladle shell, the inside of the shielding container is a lead layer, the outer surface of the shielding container is a stainless steel cladding, and the thickness of the poured lead is determined according to the radioactivity of a source item.

The load transportation system realizes the linear motion of the U-shaped supporting and connecting structure through the remote control of the motor.

The matching surface of the shielding door and the bottom lead box is designed to be in a labyrinth form, so that direct radiation is avoided.

The bottom plate supporting structure not only provides bottom supports for the shielding container and the U-shaped supporting and connecting structure, but also is a reference for mounting all motors, linear guide rails and screw thread pairs of the screw rod, and provides a reference for other equipment needing to be positioned with the shielding container.

The invention has the beneficial effects that: according to the invention, radioactive objects, such as target objects in service in a BNCT treatment room environment, are placed in the shielding container, the shielding container is transferred by the remote control load transportation system, so that the transportation and transfer of the radioactive objects are realized, the radiation injury caused by the radioactive objects is avoided, the personal safety of remote operators is ensured, especially, the shielding container and the load transportation system are designed in a split mode, the bottom load transportation system is a fixed position, the appearance and the structure of the shielding container are set into independent containers which are convenient for opening and closing a shielding door and are convenient for remote control maintenance and hoisting, the radioactive objects can be well stored, the hoisting is convenient, and the difficulty of remote operation is reduced; the shielding container is of a side hung door type, and can provide an operation space for radioactive substances to the maximum extent; the invention has simple integral structure and easy realization, and can effectively prevent radioactive objects from radiating and damaging the environment and workers.

Drawings

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

FIG. 2 is a schematic view showing the shield door of the present invention in an open position by movement of the U-shaped support connection structure.

Fig. 3 is a schematic structural view of the moving mechanism in the off position in the present invention.

Fig. 4 is a schematic diagram of the moving mechanism of the present invention in an open position.

Fig. 5 is a schematic view of the structure of the shield container of the present invention.

Fig. 6 is a schematic top view of the shielding container of the present invention.

Reference is made to the accompanying drawings in which: 1-shielding container, 11-shielding door, 111-lug, 112-through hole, 12-lead box, 2-load transportation system, 21-U-shaped supporting and connecting structure, 211-connecting pin, 22-bottom plate supporting structure, 221-bottom plate, 23-screw rod transmission system, 24-guide rail and 3-motor.

Detailed Description

The radioactive target body under the deep well of the transportation transfer is taken as a specific embodiment, and the specific embodiment of the invention is described in detail by combining the attached drawings of the specification:

as shown in fig. 1-6, a vertical hinged door type shielding container 1 system convenient for remote control maintenance is used for remotely operating, transporting and transferring radioactive targets in a deep well environment, and comprises a shielding container 1 and a load transportation system 2, wherein the shielding container 1 and the load transportation system 2 are mechanically connected through a latch; an isolated maintenance operation room is arranged in a deep well environment with radiation, a worker carries out remote control maintenance on the vertical hinged door type shielding container 1 system in the operation room, a target body is transported and transferred, and the final purpose is to move out of the deep well environment.

The shielding container 1 comprises a shielding door 11 at the top and a lead box 12 at the bottom, wherein a cavity in the middle of the lead box 12 is a storage area for radioactive substances, namely, a target body is placed in the lead box 12, and radiation brought by the target body is isolated through the shielding door 11; the shielding door 11 and the lead box 12 are matched through an inclined plane, a matching moving route between the shielding door 11 and the lead box 12 at the bottom is set to be a labyrinth structure, the design ensures that the shielding door 11 is smoothly opened and closed, and the sealing performance of the shielding door 11 and the lead box 12 can be ensured after a target body is put in. When the shielding door 11 is closed, the shielding door and the shielding door are fixed through a locking mechanism; when the shielding container 1 vertically falls on the load transportation system 2, the shielding door 11 is lifted upwards and separated from the bottom lead box 12 by a certain gap, so that the shielding door 11 is convenient to open and close.

The load transportation system 2 comprises a moving mechanism and a control system, wherein the moving mechanism is integrally fixed on the ground to ensure stability, and comprises a motor 3, a driving system, a semi-surrounding U-shaped support connecting structure 21, a bottom plate support structure 22, a screw rod transmission system 23 and a linear guide rail 24, wherein the motor 3 is arranged on a bottom plate 221 of the bottom plate support structure 22 and is connected with the screw rod transmission system through a coupler; a screw nut in the screw transmission system is rigidly connected with the U-shaped support connecting structure 21, and the linear motion of the screw transmission system is driven by a driving system arranged in the control room to drive the linear motion of the U-shaped support connecting structure 21; the linear guide rails 24 are arranged on two sides of the bottom plate 221 and are arranged at the corresponding bottoms of two sides of the U-shaped support connecting structure 21, and sliding groove structures are arranged at the bottoms of two sides of the U-shaped support connecting structure 21 and are in sliding connection with the linear guide rails 24; the control system is an upper system controlled by the motor 3 and used for controlling the forward and reverse rotation of the motor 3 and judging the opening and closing state of the shielding door 11; the motor 3 is a servo motor 3 with an encoder.

The shielding container 1 is surrounded by the U-shaped supporting connection structure 21, and besides the weight of the shielding door 11, the shielding container also needs to transmit the force of transverse movement, so that the shielding door 11 can be opened and closed; more specifically, when the shielding door 11 is to be opened or closed, the two sides of the U-shaped supporting connection structure 21 respectively drag the two side support lugs 111 of the shielding door 11 to drive the shielding door 11 to move, so as to realize opening and closing; and two guide connecting pins 211 are respectively arranged at the tops of the supporting plates at two sides of the U-shaped supporting and connecting structure 21 and are used for being matched and positioned with the through holes 112 on the supporting lugs 111 at two sides of the shielding door 11, so that the situation of displacement and dislocation of the shielding door 11 in the opening or closing process can be effectively avoided, and in the actual working process, the load transportation system 2 remotely controls the motor 3 through a control system, so that the linear motion of the U-shaped supporting and connecting structure 21 is realized.

The inner layer of the shielding container 1 is a metal lead layer, and the outer layer is a stainless steel layer; the shielding container 1 is formed by pouring lead into a stainless steel ladle shell, a lead layer is arranged in the shielding container 1, a stainless steel cladding is arranged on the outer surface of the shielding container, the thickness of the poured lead is determined according to the activity of the source, the lead layer has strong radiation shielding capacity, radioactive rays are difficult to penetrate through the lead layer, but the lead is heavy, so that the whole weight of the whole shielding container 1 is heavy, a target body is safely transported out of a deep well, the target body is transported out of the deep well together with the shielding container 1, the matching surface of the shielding door 11 and the bottom lead box 12 is designed to be in a labyrinth form, and direct radiation can be avoided.

The bottom plate supporting structure 22 is used as a radioactive substance storage system which has strong load capacity, can be remotely controlled and is convenient for remote control maintenance and transportation, is specially used for BNCT remote control maintenance, and when the radioactive substance storage system works, a target body is placed in the shielding container 1, the shielding container 1 is placed on the load transportation system 2 through a vertical hoisting device, and is connected through an inverted bolt, the load transportation system 2 is electrically driven, so that the opening and closing of the shielding door 11 of the shielding container 1 are realized; when the shielding container 1 needs to be transported, the shielding door 11 of the motor 3 is remotely driven to be closed through the control system, and then the shielding container 1 is integrally lifted out through the crown block; the invention realizes the remote control operation and the aim of bearing large load capacity, not only meets the maintenance requirement, but also can block the radiation between the operator and the radioactive source.

In the invention, the bottom plate supporting structure 22 not only realizes the installation and positioning of the guide rail 24, the motor 3 and the lead screw transmission system, but also has the functions of supporting the shielding container 1, and fixing and leveling the shielding container and the ground; the load transportation system 2 bears the weight of the shielding door 11 and the U-shaped supporting and connecting structure 21 through the linear guide rail 24; the load transportation system 2 converts the rotation torque of the motor 3 into linear motion of a screw nut through a screw pair of the screw rod; in the technical scheme, the bottom of the load transportation system 2 is a bottom plate supporting system, and the load transportation system needs to be connected with the ground and can be leveled.

According to the invention, radioactive objects, such as target objects in service in a BNCT treatment room environment, are placed in the shielding container 1, the shielding container 1 is transferred by the remote control load transportation system 2, the transportation and transfer of the radioactive objects are realized, the radiation injury caused by the radioactive objects is avoided, the personal safety of remote operators is ensured, particularly, the shielding container 1 and the load transportation system 2 are designed in a split mode, the bottom load transportation system 2 is a fixed position, the appearance and the structure of the shielding container 1 are set into independent containers which are convenient for opening and closing the shielding door 11 and convenient for remote control maintenance and hoisting, the radioactive objects can be well stored, the radioactive objects can be hoisted from a deep well environment, and the difficulty of remote operation is reduced; the shielding container 1 is of a side hung door type, and can provide an operation space for radioactive materials to the maximum extent; the invention has simple integral structure and easy realization, and can effectively prevent radioactive objects from radiating and damaging the environment and workers.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, and those skilled in the art may make modifications and variations within the spirit of the present invention, and all modifications, equivalents and modifications of the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.