CN216817835U - A transport means for reactor connecting pipe flange protection device - Google Patents
A transport means for reactor connecting pipe flange protection device Download PDFInfo
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- CN216817835U CN216817835U CN202122892051.8U CN202122892051U CN216817835U CN 216817835 U CN216817835 U CN 216817835U CN 202122892051 U CN202122892051 U CN 202122892051U CN 216817835 U CN216817835 U CN 216817835U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model belongs to the technical field of nuclear power station reactor maintenance, and particularly relates to a transport tool for a reactor connecting pipe flange protection device.
Description
Technical Field
The application belongs to the technical field of nuclear power station reactor maintenance, and particularly relates to a transport tool for a reactor connecting pipe flange protection device.
Background
During the unit reloading overhaul and the disassembly overhaul, a special tool is needed to disassemble the protection device of the reactor connecting pipe flange, and the reactor connecting pipe flange is lifted to a reactor hall radiation pollution field to be temporarily stored, so that a precondition is created for decrypting and sealing the subsequent neutron temperature measurement channel connecting pipe flange and the reserved connecting pipe flange of the driving mechanism. However, during overhaul, more overhaul tools and consumables need to be stored in a reactor overhaul radiation pollution site, and workers need to perform various overhaul activities in the site and often touch a protection device. Because the whole gravity center of the protection device is inclined upwards, and the diameter of the part which is in contact with the ground is smaller, the problem of heavy head and light feet exists, and the protection device is easy to topple. Therefore, the disassembled reactor connecting pipe flange protection device needs to be transported to a special storage place in time during each overhaul period for storage.
The reactor-removing connecting pipe flange protection device cannot be lifted to a special storage place by a crane and can only be carried by manpower due to the limitation of field conditions. In the absence of a dedicated transport vehicle, workers typically resort to freehand handling. However, the whole body of the protection device does not have a proper holding position, and the protection device can be carried by a single person only with difficulty, and is easy to get out of hand during carrying, so that the transportation is difficult. Meanwhile, a single protection device is heavy, great burden is caused to transportation personnel, and great industrial safety risk exists. In addition, the equipment such as pipelines, valves and the like are arranged at a plurality of places between a field reactor maintenance radiation pollution site and a special storage site for the protection device along the ground, transportation personnel need to bring the protection device to cross the equipment, and great equipment damage and economic loss risk exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a transport means for reactor flange protection device, it can only take off the hand easily through the manpower transport, the transportation difficulty is great to solve protection device, has the problem of great industrial safety risk.
The technical scheme for realizing the purpose of the application is as follows:
the embodiment of the application provides a transport for reactor flange protection device, the transport includes: a bearing cylinder and a bearing handle;
the outer diameter of the bearing cylinder body is smaller than the inner diameter of the head surrounding cylinder of the protection device and is larger than the distance from the tail end of the hoisting pin on the protection device to the center of the protection device;
an L-shaped key groove is formed in the outer surface of the bearing cylinder, and the width of the L-shaped key groove is larger than the diameter of the hoisting pin;
one side of the L-shaped key groove is provided with an opening at the lower end of the bearing cylinder, and the other side of the L-shaped key groove is perpendicular to one side of the L-shaped key groove, so that the hoisting pin enters from the opening at one side of the L-shaped key groove and slides to the other side of the L-shaped key groove;
the bearing handle is connected with the upper end of the bearing barrel through a bearing rod and used for lifting the bearing barrel.
Alternatively to this, the first and second parts may,
one side opening of the L-shaped key groove is in a horn shape.
Optionally, the number of the bearing rods is two, the lower ends of the two bearing rods are symmetrically fixed on the outer surface of the bearing cylinder, and the upper ends of the two bearing rods are fixed with the bearing handle.
The distance from the lower end of the bearing rod to the L-shaped key groove is larger than the distance from the hoisting pin to the upper end of the protection device.
Alternatively to this, the first and second parts may,
the lower end of the bearing rod is aligned with the tail end of the other side of the L-shaped key groove.
Alternatively to this, the first and second parts may,
the bearing handle is of a long rod structure, and the length of the bearing handle is greater than the distance between the two bearing rods.
Alternatively to this, the first and second parts may,
the bearing rod is of a hollow structure;
and/or the bearing handle is of a hollow structure.
Alternatively to this, the first and second parts may,
the interior of the bearing cylinder body is of a hollow structure.
Optionally, the transportation vehicle further includes: an anti-drop component; the anti-falling component comprises a vertical sliding chute arranged in the bearing cylinder body, and the lower end of the sliding chute is communicated with the L-shaped key groove;
the anticreep subassembly still includes: a stopper;
the sliding groove is internally provided with the stop block, and when the stop block is positioned at the lower end of the sliding groove, the stop block protrudes out of the L-shaped key groove; when the stop block is positioned at the upper end of the sliding groove, the stop block is hidden at the inner side of the bearing cylinder body.
Alternatively to this, the first and second parts may,
the height of the stop block is larger than the width of the L-shaped key groove.
Optionally, the anti-dropping assembly further includes: a lifting bar;
the lifting rod is used for lifting and lowering the stop block.
Optionally, the number of the sliding grooves is two, the two sliding grooves are symmetrically arranged, and one stop block is arranged in each sliding groove; the lifting bar comprising: a connecting rod, a transmission rod and a lifting handle;
the connecting rod is fixedly connected with the two stop blocks;
one end of the transmission rod is fixed on the connecting rod, and the other end of the transmission rod extends out of the interior of the bearing cylinder;
the lifting handle is arranged at the other end of the transmission rod.
Alternatively to this, the first and second parts may,
the bearing handle is provided with a through hole for penetrating the other end of the transmission rod.
Optionally, the transmission rod is divided into a lower half section, a middle section and an upper half section;
the lower half section is positioned at the lower side of the bearing handle and is fixed with the connecting rod;
the upper half section extends out of the bearing handle; a spring is sleeved outside the middle section and is positioned on the lower side of the bearing handle;
the diameter of the spring is smaller than that of the lower half section, and the diameter of the through hole is smaller than that of the spring and that of the upper half section;
the lifting handle is mounted on the upper half.
Alternatively to this, the first and second parts may,
the distance from the lower end of the upper half section to the lower end of the stop block is greater than the distance from the lower end of the upper half section to the L-shaped key groove;
the compression amount of the spring is not less than the distance of the stop block protruding out of the L-shaped key groove.
Optionally, the upper half section is provided with a diameter-reducing section with a reduced diameter;
the lifting handle is provided with a mounting through hole, the diameter of the mounting through hole is larger than that of the diameter-changing section and smaller than that of the first section, so that the lifting handle is rotatably sleeved on the diameter-changing section.
The beneficial technical effect of this application lies in:
(1) according to the structural characteristics of the connecting pipe flange protection device, aiming at the problem of difficult transportation of the protection device, the connecting pipe flange protection device transportation tool is developed and developed, a cavity which is lack of a special tool is filled in the work, the protection device is transported by two workers in a cooperation mode, the labor intensity of the workers is reduced, and the safety and the working efficiency of the transportation work of the protection device are improved;
(2) the embodiment of the application provides a transport tool for a reactor connecting pipe flange protection device, which is designed to adopt a large number of structures such as hollow cylinders, hollow pipe fittings and the like, so that the overall weight of the transport tool for the protection device is greatly reduced on the basis of ensuring that the mechanical strength meets the requirement, and the transport tool is convenient for workers to operate;
(3) the embodiment of the application provides a transport tool for a reactor connecting pipe flange protection device, wherein the butt joint part of the transport tool and a hoisting pin adopts a bell mouth design, so that the connection efficiency of the transport tool and the protection device is improved; the position of the bearing rod is ingeniously arranged, so that a worker can quickly and visually judge that the protective device transport tool is installed in place.
(4) The embodiment of the application provides a transport tool for a reactor connecting pipe flange protection device, wherein an anti-falling assembly comprising a chute and a stop block is skillfully designed in a limited space, so that the protection device is prevented from largely swinging and falling off from the transport tool in the transport process; the lifting handle is designed to rotate freely relative to the transmission rod, so that the lifting handle can be separated from the transportation tool without synchronous rotation, and the lifting handle is convenient for workers to operate.
Drawings
FIG. 1 is a schematic structural diagram of a protection device in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a transport vehicle for a reactor pipe flange protection device according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of another transportation vehicle for a reactor pipe flange protection device according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a transport vehicle for a reactor pipe flange protection device according to an embodiment of the present disclosure;
fig. 5 is a schematic view of a use state of a transport vehicle for a reactor pipe flange protection device according to an embodiment of the present application;
fig. 6 is a schematic view of another use state of a transport vehicle for a reactor pipe flange protection device according to an embodiment of the present disclosure.
In the figure:
1-a bearing cylinder body; 11-L-shaped key groove, 12-opening;
2-a load-bearing handle; 21-a bearing bar; 22-a through hole;
3-a protection device; 31-hoisting pins;
4-an anti-drop component; 41-a chute; 42-a stop block; 43-a lifting bar; 44-a connecting rod; 45-transmission rod, 451-lower half section, 452-middle section, 453-upper half section, 454-spring, 455-reducing section; 46-lifting the handle.
Detailed Description
In order to make the technical solutions in the embodiments of the present application more comprehensible to those skilled in the art, the following description will be made in detail and completely with reference to the accompanying drawings in the embodiments of the present application. It should be apparent that the embodiments described below are only some of the embodiments of the present application, and not all of them. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present application.
To facilitate understanding of a transport vehicle for a reactor pipe flange protection device provided in an embodiment of the present application, a lower reactor pipe flange protection device will be first described below.
The upper assembly is used as an important part of the reactor and is mainly used for sealing a main sealing surface of the reactor to form a compact internal space of the reactor, and a certain pressure is established to prevent the reactor internals from floating upwards under the action of core water flow. Meanwhile, the upper assembly plays a role in fixing the control rod driving mechanism and electrical equipment thereof, and fixing the line terminal and the sealing member of the reactor core instrument sensor. 141 connecting pipes are arranged on the top cover of the upper component, wherein 18 neutron temperature measuring channel connecting pipes and 18 driving mechanisms are reserved in the connecting pipes, and lower flanges for sealing are arranged at the tops of the connecting pipes. 54 neutron temperature measurement channels distributed in the reactor core are combined into 18 groups of neutron temperature measurement tube bundles, each group of 3 measurement channels are distributed in 18 neutron temperature measurement channel connecting tubes on the top cover of the upper assembly, and the neutron temperature measurement channel connecting tubes are matched with the lower flange through the upper flange to realize the sealing with the connecting tubes, wherein the sealing belongs to a loop pressure boundary. The drive mechanism reserved connecting pipe is used as a control rod drive mechanism maximum installation capacity reserved hole, an upper flange and a lower flange are also arranged to realize sealing, and the drive mechanism reserved connecting pipe also belongs to a loop pressure boundary.
According to the classification of reactor equipment of the nuclear power plant safety rule, the connecting pipe sealing device belongs to the safety level 2 (2H) of the normal operation system of the nuclear power plant. The upper assembly belongs to class 1 earthquake-resistant according to the equipment classification provisions of the earthquake-resistant design specifications of the nuclear power plant. It can be seen that the nuclear safety and seismic requirements for the upper assembly top cap adapter flange are both very high. When the unit is designed, if a pipe connecting flange bolt sudden fracture event occurs during operation, in order to prevent the pipe connecting flange from bouncing off and causing a large amount of primary loop media to overflow, protective devices are designed and installed on the pipe connecting flange of the neutron temperature measurement channel and the reserved pipe connecting flange of the driving mechanism.
At present, the protection device is a hollow cylindrical structure made of carbon steel, the single weight is in the range of 58.83Kg to 65.13Kg, and the structure is shown in figure 1. The lower cylinder of the protection device is located on the upper end face of the pipe connecting flange, and the whole weight presses the upper flange. 6 steel balls are evenly distributed on the circumference of the upper portion of the protection device, when the protection device is located at the working position, the steel balls protrude out of the protection device barrel and are blocked by the edge of the steel structure hole of the upper portion assembly, the protection device is effectively prevented from bouncing, and then the protection pipe connecting flange is always located at the working position.
In view of the limitation of field conditions at present, the protection device is hung to a special storage place and can only carry various risks existing through manpower, and in order to fill up the void lacking in the reactor connecting pipe flange protection device transportation tool, improve the safety and the working efficiency of the transportation work of the protection device, reduce the burden of workers, reduce the industrial safety risk of the work and simultaneously avoid the occurrence of unnecessary equipment damage and economic loss events, the embodiment of the application provides the transportation tool for the reactor connecting pipe flange protection device.
The inventor of the application discovers that the following technical problems exist in the transportation of the protection device by analyzing the structure and various parameters of the protection device and considering the influence factors of other field equipment: (1) the single protection device is heavy, two workers need to be considered for cooperative transportation, and the labor intensity is reduced; (2) searching a proper pin shaft or hole on the protection device body to be used as a part which is connected with a special transportation tool and bears the force; (3) the special transport means should be able to be connected to the protection device quickly and efficiently and ensure the reliability of the connection.
Therefore, the embodiment of the application provides a transportation tool for a reactor connecting pipe flange protection device, which is provided with a long rod-shaped bearing handle, so that two persons can cooperatively transport the reactor connecting pipe flange protection device; referring to the design of a protective device disassembling tool, selecting a hoisting pin at the head of the protective device as a part which is connected with the transportation tool and bears the force; the butt joint part of the transport tool and the hoisting pin adopts a bell mouth design; the ingenious spare part position that arranges is convenient for the staff to judge this transport means installation fast and targets in place to set up the anticreep subassembly, guarantee the connection reliability.
Based on the above, in order to clearly and specifically explain the above advantages of the present application, the following description of the embodiments of the present application will be made with reference to the accompanying drawings.
Referring to fig. 2, the figure is a schematic structural diagram of a transport vehicle for a reactor pipe flange protection device according to an embodiment of the present application.
The utility model provides a transport means for reactor flange protection device, includes: a bearing cylinder body 1 and a bearing handle 2;
the outer diameter of the bearing cylinder body 1 is smaller than the inner diameter of a head surrounding cylinder of the protection device 3 and is larger than the distance from the tail end of a hoisting pin 31 on the protection device 3 to the center of the protection device 3;
the outer surface of the bearing cylinder body 1 is provided with an L-shaped key groove 11, and the width of the L-shaped key groove 11 is larger than the diameter of the hoisting pin 31;
one side of the L-shaped key groove 11 is provided with an opening 12 at the lower end of the bearing cylinder 1, and the other side of the L-shaped key groove 11 is arranged vertical to one side of the L-shaped key groove 11, so that the hoisting pin 31 enters from the opening 12 at one side of the L-shaped key groove 11 and slides to the other side of the L-shaped key groove 11;
the bearing handle 2 is connected with the upper end of the bearing cylinder 1 through a bearing rod 21 and used for lifting the bearing cylinder 1.
In this application embodiment, bearing barrel 1 is wholly cylindric, and its external diameter is less than the internal diameter of 3 head surrounding cylinders of protection device and is greater than the distance to 3 centers at protection device 3 of the tail end of hoisting pin 31 on the protection device 3, and the width of L type keyway 11 is greater than the diameter of hoisting pin 31, guarantees that bearing barrel 1 can insert 3 head surrounding cylinders of protection device, and hoisting pin 31 can fix on L type keyway 11. Two hoisting pins 31 of L type keyway 11 and 3 heads of protection device cooperate and use, realize transport means and 3 high-speed joint of protection device, this type connection structure space utilization is high, connects conveniently.
In practical application, the hoisting pin 31 enters from the opening 12 on one side of the L-shaped key groove 11 and slides to the other side of the L-shaped key groove 11, and then the bearing barrel 1 is lifted by the bearing handle 2 to drive the protection device 3 to be lifted, so that the protection device 3 can be transported.
In some possible implementation manners of the embodiment of the application, the opening of one side 12 of the L-shaped key groove 11 is in a horn shape, so that the L-shaped key groove 11 can be quickly butted to the hoisting pin 31, and the transportation tool can be quickly and efficiently connected with the protection device 3.
In some possible implementation manners of the embodiment of the present application, the number of the two bearing rods 21 is two, the lower ends of the two bearing rods 21 are symmetrically fixed on the outer surface of the bearing cylinder 1, and the upper ends of the two bearing rods 21 are fixed to the bearing handle 2.
The distance from the lower end of the bearing bar 21 to the L-shaped key groove 11 is greater than the distance from the lifting pin 31 to the upper end of the protection device 3, so that the L-shaped key groove 11 is butted against the lifting pin 31.
In some possible implementations of the embodiment of the present application, the lower end of the bearing rod 21 is aligned with the end of the other side of the L-shaped key slot 11, and when the transportation vehicle is connected to the protection device 3 in place, the worker can quickly determine that the transportation vehicle is installed in place through an observation that the head lifting pin 31 of the protection device 3 and the bearing rod 21 are in the same line.
In some possible implementation manners of the embodiment of the application, the bearing handle 21 is a long rod structure, the length of the bearing handle 21 is greater than the distance between the two bearing rods 2, and the two ends of the bearing handle 21 protruding out of the two bearing rods 2 can be used as the grasping parts of two workers to realize the cooperative transportation protection device for the two workers.
In some possible implementations of the embodiment of the present application, the bearing bar 2 has a hollow structure; and/or the bearing handle 21 is a hollow structure.
It can be understood that the bearing rod 2 and the bearing handle 21 are both hollow structures, so that the whole weight of the transportation tool is reduced on the basis that the requirement on mechanical strength is met, and the burden of workers is reduced as much as possible.
In some possible implementations of the embodiment of the present application, the interior of the load-bearing cylinder 1 is a hollow structure. In a similar way, the interior of the bearing cylinder body 1 is of a hollow structure, so that the whole weight of the protective device transportation tool is greatly reduced on the basis of ensuring that the mechanical strength meets the requirements, and the operation of workers is convenient.
In addition, in some possible implementation manners of the embodiment of the application, the anti-falling component 4 may be further disposed inside the bearing cylinder 1 to prevent the hoisting pin 31 from sliding out of the L-shaped key slot 11 in transportation, so that the protection device 3 falls off.
Specifically, referring to fig. 2, 3 and 4, the transportation vehicle may further include: the anti-drop component 4; the anti-falling component 4 comprises a sliding chute 41 vertically arranged in the bearing cylinder body 1, and the lower end of the sliding chute 41 is communicated with the L-shaped key groove 11;
anticreep subassembly 4 still includes: a stopper 42;
a stop 42 is arranged in the sliding chute 41, and when the stop 42 is positioned at the lower end of the sliding chute 41, the stop 42 protrudes out of the L-shaped key groove 11; when the stopper 42 is positioned at the upper end of the sliding groove 41, the stopper 42 is hidden inside the bearing cylinder 1.
It can be understood that the stopper 42 can move up and down in the sliding groove 41, but cannot rotate circumferentially, so that the lifting pin 31 can enter the L-shaped key groove 11 in the forward direction and cannot be reversely separated from the L-shaped key groove 11, and the anti-falling function is achieved.
As an example, the height of the chute 41 is twice the height of the stop 42, ensuring that the stop 42 can be completely hidden inside the load-bearing cylinder 1.
In some possible implementations of the embodiment of the present application, the height of the stopper 42 is greater than the width of the L-shaped key slot 11, so as to ensure that the falling-off prevention is realized.
In some possible implementation manners of the embodiment of the present application, the anti-dropping assembly 4 further includes: a lift lever 43; and a lifting rod 43 for lifting and lowering the stopper 42 to perform a trip prevention function.
In some possible implementation manners of the embodiment of the present application, the number of the sliding grooves 41 is two, the two sliding grooves 41 are symmetrically arranged, and a stop block 42 is arranged in each sliding groove 41; a lift lever 43 including: a connecting rod 44, a transmission rod 45 and a lifting handle 46;
the connecting rod 44 is fixedly connected with the two stoppers 42;
one end of the transmission rod 45 is fixed on the connecting rod 44, and the other end of the transmission rod 44 extends out of the interior of the bearing cylinder 1;
a lift handle 46 is mounted at the other end of the drive link 45.
It will be appreciated that lifting of the stop 42 can be achieved by lifting the lifting handle 46, the lifting pin 31 can enter the L-shaped keyway 11 in a forward direction, and the stop 42 can fall down by lowering the lifting handle 46, and the lifting pin 31 cannot fall out of the L-shaped keyway 11 in a reverse direction.
In one example, the carrying handle 2 is provided with a through hole 22 for passing the other end of the transmission rod 45.
In some possible implementations of the embodiments of the present application, the transmission rod 45 is divided into a lower half section 451, a middle section 452, and an upper half section 453;
the lower half section 451 is positioned at the lower side of the bearing handle 2 and is fixed with the connecting rod 44;
the upper half 453 extends out of the load-bearing handle 2; the middle section 452 is sleeved with a spring 454, and the spring 454 is positioned at the lower side of the bearing handle 2;
the diameter of spring 454 is smaller than the diameter of lower half 451, and the diameter of through hole 22 is smaller than the diameter of spring 454 and the diameter of upper half 453;
the lift handle mount 46 is mounted to the upper half 453.
It will be appreciated that spring 454 ensures that stop 42 automatically falls and locks in place. The lower half 451 and the carrying handle 2 limit the maximum extension of the spring 454.
In some possible implementations of embodiments of the present application, the distance from the lower end of upper half 453 to the lower end of stop 42 is greater than the distance from the lower end of upper half 453 to L-shaped keyway 11;
In order to facilitate the handling of the lifting handle 46 in the lifted state without the rotation of the carrying cylinder 1 and the carrying handle 2 when the carrying cylinder 1 and the carrying handle 2 are rotated during the process of releasing the transport means from the protection device 3. In some possible implementations of embodiments of the present disclosure, the upper half 453 is provided with a reducing section 455 with a decreasing diameter;
the lifting handle 46 is provided with a mounting through hole, and the diameter of the mounting through hole is larger than the diameter of the reducing section 455 and smaller than the diameter of the upper half section 453, so that the lifting handle 46 can be rotatably sleeved on the reducing section 455.
The following describes in detail an installation and use method of a transport vehicle for a reactor connecting pipe flange protection device provided by an embodiment of the present application with reference to a specific example.
Referring to fig. 5 and fig. 6, an installation and use method of a transport vehicle for a reactor connecting pipe flange protection device according to an embodiment of the present application is as follows:
in the initial state of the transport tool for the reactor connecting pipe flange protection device provided by the embodiment of the application, the stopper 42 is tightly attached to the lower end face of the chute 41 under the action of the spring 454, so as to block the opening 12 of the L-shaped key groove 11. The transportation tool is taken up, the opening 12 is aligned with the head lifting pin 31 of the protection device 3 and inserted downwards, and the lifting pin 31 quickly enters the L-shaped key groove 11 under the guiding action of the opening 12. The hoisting pin 31 contacts the stop block 42 and continues to be inserted downwards, and the stop block 42 is jacked up to expose the horizontal section channel of the L-shaped key groove 11.
The vehicle is then rotated to the end and the load bearing bar 21 is brought into alignment with the lifting pin 31 to positively engage the vehicle. At this time, the stopper 42 is restored to the initial position by the spring 454, blocking the passage of the L-shaped key groove 11, and preventing the lifting pin 31 from being reversely removed from the L-shaped key groove 11.
Thereafter, two workers cooperate to lift the carrying handle 2 to transport the protection device 3 to a designated site. The lifting handle 46 is lifted upwards to the top, the stop 42 moves upwards to the upper end of the sliding groove 41, and the passage of the L-shaped key groove 11 is opened. And then the transportation tool is rotated to the bottom and lifted up, so that the transportation tool can be separated from the protection device 3, and the transportation work of the protection device 3 is completed.
The utility model provides a transport means for reactor flange protection device has solved protection device transportation difficulty problem, improves the security and the work efficiency of protection device transportation work, alleviates the staff burden, reduces the industrial safety risk of this work, avoids the emergence of unnecessary equipment damage and economic loss incident simultaneously. The transport means for reactor connecting pipe flange protection device that this application embodiment provided can popularize and apply in the relevant work of the unit of the same type.
The transport means for reactor connecting pipe flange protection device provided by the embodiment of the application can be popularized to the transport work of other similar equipment in a power station.
The transport means for reactor flange protection device that this application embodiment provided also has good reference meaning to the transport work of other similar equipment in the same trade.
The present application has been described in detail with reference to the drawings and examples, but the present application is not limited to the above examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. The prior art can be used for all the matters not described in detail in this application.
Claims (15)
1. A transport vehicle for a reactor flange protector, the transport vehicle comprising: a bearing cylinder and a bearing handle;
the outer diameter of the bearing cylinder body is smaller than the inner diameter of the head surrounding cylinder of the protection device and is larger than the distance from the tail end of the hoisting pin on the protection device to the center of the protection device;
an L-shaped key groove is formed in the outer surface of the bearing cylinder, and the width of the L-shaped key groove is larger than the diameter of the hoisting pin;
one side of the L-shaped key groove is provided with an opening at the lower end of the bearing cylinder, and the other side of the L-shaped key groove is perpendicular to one side of the L-shaped key groove, so that the hoisting pin enters from the opening at one side of the L-shaped key groove and slides to the other side of the L-shaped key groove;
the bearing handle is connected with the upper end of the bearing barrel through a bearing rod and used for lifting the bearing barrel.
2. The transport vehicle for a reactor flange protector of claim 1,
one side opening of the L-shaped key groove is in a horn shape.
3. The transportation tool for the reactor pipe flange protection device according to claim 1, wherein the number of the bearing rods is two, the lower ends of the two bearing rods are symmetrically fixed on the outer surface of the bearing cylinder body, the upper ends of the two bearing rods are fixed with the bearing handle,
the distance from the lower end of the bearing rod to the L-shaped key groove is larger than the distance from the hoisting pin to the upper end of the protection device.
4. The transport vehicle for a reactor flange protector of claim 3,
the lower end of the bearing rod is aligned with the tail end of the other side of the L-shaped key groove.
5. The transport vehicle for a reactor flange protector of claim 3,
the bearing handle is of a long rod structure, and the length of the bearing handle is greater than the distance between the two bearing rods.
6. A transport vehicle for a reactor flange protector according to claim 3,
the bearing rod is of a hollow structure;
and/or the bearing handle is of a hollow structure.
7. The transport vehicle for a reactor flange protector of claim 1,
the interior of the bearing cylinder body is of a hollow structure.
8. The transport vehicle for a reactor flange protector of claim 7, further comprising: an anti-drop component; the anti-falling component comprises a sliding chute which is vertically arranged in the bearing cylinder body, and the lower end of the sliding chute is communicated with the L-shaped key groove;
the anticreep subassembly still includes: a stopper;
the sliding groove is internally provided with the stop block, and when the stop block is positioned at the lower end of the sliding groove, the stop block protrudes out of the L-shaped key groove; when the stop block is positioned at the upper end of the sliding groove, the stop block is hidden at the inner side of the bearing cylinder body.
9. The transport vehicle for a reactor flange protector of claim 8,
the height of the stop block is larger than the width of the L-shaped key groove.
10. The transport vehicle for a reactor flange protector of claim 8, wherein the trip prevention assembly further comprises: a lifting bar;
the lifting rod is used for lifting and lowering the stop block.
11. The transport vehicle for the reactor connecting pipe flange protection device according to claim 10, wherein the number of the sliding grooves is two, the two sliding grooves are symmetrically arranged, and one stop block is arranged in each sliding groove; the lifting bar comprising: a connecting rod, a transmission rod and a lifting handle;
the connecting rod is fixedly connected with the two stop blocks;
one end of the transmission rod is fixed on the connecting rod, and the other end of the transmission rod extends out of the interior of the bearing cylinder;
the lifting handle is arranged at the other end of the transmission rod.
12. The transport vehicle for a reactor flange protector of claim 11,
the bearing handle is provided with a through hole for penetrating the other end of the transmission rod.
13. The vessel for a reactor flange protector of claim 12 wherein the drive link is divided into a lower half, a middle half, and an upper half;
the lower half section is positioned at the lower side of the bearing handle and is fixed with the connecting rod;
the upper half section extends out of the bearing handle; a spring is sleeved outside the middle section and is positioned on the lower side of the bearing handle;
the diameter of the spring is smaller than that of the lower half section, and the diameter of the through hole is smaller than that of the spring and that of the upper half section;
the lifting handle is mounted on the upper half.
14. The transport vehicle for a reactor flange protector of claim 13,
the distance from the lower end of the upper half section to the lower end of the stop block is greater than the distance from the lower end of the upper half section to the L-shaped key groove;
the compression amount of the spring is not less than the distance of the stop block protruding out of the L-shaped key groove.
15. The transport vehicle for a reactor flange protector of claim 13, wherein the upper half is provided with a reducing section with a decreasing diameter;
the lifting handle is provided with a mounting through hole, the diameter of the mounting through hole is larger than that of the diameter-changing section and smaller than that of the first section, so that the lifting handle is rotatably sleeved on the diameter-changing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122892051.8U CN216817835U (en) | 2021-11-19 | 2021-11-19 | A transport means for reactor connecting pipe flange protection device |
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| CN202122892051.8U CN216817835U (en) | 2021-11-19 | 2021-11-19 | A transport means for reactor connecting pipe flange protection device |
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