CN213738243U - Heat exchanger hoist and mount running gear - Google Patents
Heat exchanger hoist and mount running gear Download PDFInfo
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- CN213738243U CN213738243U CN202021830018.1U CN202021830018U CN213738243U CN 213738243 U CN213738243 U CN 213738243U CN 202021830018 U CN202021830018 U CN 202021830018U CN 213738243 U CN213738243 U CN 213738243U
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Abstract
The utility model relates to a nuclear power engineering field especially relates to a heat exchanger hoist and mount running gear. Heat exchanger hoist and mount running gear includes: the bearing frame is of a square frame structure and comprises four long beams which are arranged in parallel, and two ends of the first long beam and two ends of the second long beam are fixedly connected through the first short beam and the second short beam; the two ends of the third long beam and the fourth long beam are fixedly connected by a third short beam and a fourth short beam; the four long beams are connected by two connecting components arranged in parallel; the walking components are respectively arranged at the bottoms of the four short beams; the guide assemblies are respectively arranged at the corners of the bearing frame; hoisting points which are respectively arranged between the first long beam and the second long beam and between the third long beam and the fourth long beam; and the traction hoisting points are respectively and fixedly connected with the side surface of the long beam on the outer side of the bearing frame. The device is stable in hoisting, can help hoisting equipment to separate and complete actions such as lifting and translation and the like so as to ensure the in-place precision and the stable structure, and is low in hoisting risk.
Description
Technical Field
The utility model relates to a nuclear power engineering field especially relates to a heat exchanger hoist and mount running gear.
Background
In nuclear power engineering, a reactor refueling water pool and a spent fuel water pool cooling and treating system (PTR system) has 3 cooling series. Each cooling series is provided with a shell-and-tube heat exchanger for removing the waste heat of the fuel assembly in the spent fuel pool so as to ensure the good operation of the nuclear power unit. The in-place installation of the equipment is very important. However, the hoisting of the heat exchanger equipment is limited by the environment, a civil engineering wall body is obstructed, the crane cannot directly introduce the equipment into place, and the difference between the temporary storage position and the equipment installation position is 800mm along the direction of the basic axis. Therefore, when the hoisting equipment is temporarily in place, the hoisting action of lifting, translating and then placing in place needs to be completed, and meanwhile, the foundation bolts arranged in advance need to smoothly fall into the equipment saddle bolt holes, so that the heat exchanger of the PTR system can be led into the placing operation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the heat exchanger hoisting walking device is stable in hoisting, can help hoisting equipment to separate and complete lifting, translation and other actions so as to guarantee in-place precision and stable structure, and is low in hoisting risk.
The utility model provides a heat exchanger hoist and mount running gear, include: the device comprises a bearing frame, a walking assembly, a guide assembly, a hoisting lifting point and a traction lifting point;
the bearing frame is of a square frame structure and comprises a first long beam, a second long beam, a third long beam and a fourth long beam which are arranged in parallel,
the two ends of the first long beam and the second long beam are fixedly connected by a first short beam and a second short beam respectively;
the two ends of the third long beam and the fourth long beam are fixedly connected by a third short beam and a fourth short beam respectively;
the two parallel connecting components connect the first long beam, the second long beam, the third long beam and the fourth long beam;
the walking components are respectively arranged at the bottoms of the four short beams;
the guide assemblies are respectively arranged at the corners of the bearing frame;
hoisting points which are respectively arranged between the first long beam and the second long beam and between the third long beam and the fourth long beam;
and the traction hoisting points are respectively and fixedly connected with the side surface of the long beam on the outer side of the bearing frame.
Preferably, the walking assembly is 4 ~ 8 tank wheels that set up respectively in the bottom of four short beams.
Preferably, the guide assemblies are 4 universal wheels respectively arranged at the corners of the bearing frame.
Preferably, the connecting assembly is an angle steel or channel steel assembly.
Preferably, the hoisting points comprise square pipes, steel plates, lifting holes and hoisting holes;
a steel plate is welded between the two square pipes, and two ends of each square pipe are fixed on the long beam;
the upper end of steel sheet is provided with 2 and carries the hand-operated hole, and the lower extreme is provided with 1 hole for hoist.
Preferably, the number of the lifting points is 2, the lifting points are respectively a first lifting point and a second lifting point, two ends of a square tube of the first lifting point are fixed between the first long beam and the second long beam, and two ends of a square tube of the second lifting point are fixed between the third long beam and the fourth long beam;
the first hoisting point and the second hoisting point are symmetrically positioned.
Preferably, the number of the traction suspension points is 4, 2 of the traction suspension points are fixedly connected to the side surface of the first long beam, 2 of the traction suspension points are fixedly connected to the side surface of the fourth long beam, and the traction suspension points are symmetrically arranged on the long beam.
Preferably, the first long beam, the second long beam, the third long beam and the fourth long beam are all i-steel long beams;
and the first short beam, the second short beam, the third short beam and the fourth short beam are I-shaped steel short beams.
Compared with the prior art, the utility model discloses a heat exchanger hoist and mount running gear has following beneficial effect:
(1) the structure is simple, each component can be independently dispatched and assembled on site, and the limitation of the transportation and installation environment is reduced; the problem that equipment is difficult to hoist and translate under the condition that a conventional crane is not suitable due to environmental and material limitations is solved, and the one-time manufacturing and mounting cost is reduced;
(2) the hoisting is stable, the hoisting equipment can be helped to separate to finish the actions of lifting, translation and the like, so that the in-place precision and the stable structure of the equipment are ensured, and the hoisting risk is low;
(3) the span is large, and bearing weight is big, applicable in the handling of multiple equipment.
Drawings
Fig. 1 shows a front view of the heat exchanger hoisting and traveling device of the present invention;
fig. 2 shows a bottom view of the heat exchanger hoisting and traveling device of the present invention;
FIG. 3 shows a schematic view of the construction of the lifting point;
in the figure:
10 is a bearing frame, 101 is a first long beam, 102 is a second long beam, 103 is a third long beam, 104 is a fourth long beam, 105 is a first short beam, 106 is a second short beam, 107 is a third short beam, 108 is a fourth short beam, 109 is a connecting assembly, 20 is a walking assembly, 30 is a guiding assembly, 40 is a hoisting point, 401 is a square tube, 402 is a steel plate, 403 is a lifting hole, 404 is a hoisting hole, and 50 is a traction hoisting point.
Detailed Description
For further understanding of the present invention, embodiments of the present invention are described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the present invention.
The embodiment of the utility model discloses a heat exchanger hoist and mount running gear, specifically refer to fig. 1 and fig. 2, include: the device comprises a bearing frame 10, a walking component 20, a guide component 30, a hoisting point 40 and a traction point 50;
the bearing frame 10 is a square frame structure, and comprises a first long beam 101, a second long beam 102, a third long beam 103, a fourth long beam 104,
the two ends of the first long beam 101 and the second long beam 102 are respectively fixedly connected by a first short beam 105 and a second short beam 106;
the two ends of the third long beam 103 and the fourth long beam 104 are respectively fixedly connected by a third short beam 107 and a fourth short beam 108;
two parallel connecting assemblies 109 connect the first long beam 101, the second long beam 102, the third long beam 103 and the fourth long beam 104;
the walking components 20 are respectively arranged at the bottoms of the four short beams;
the guide assemblies 30 are respectively arranged at the corners of the bearing frame 10;
hoisting points 40 respectively arranged between the first long beam 101 and the second long beam 102, and between the third long beam 103 and the fourth long beam 104;
and the traction hoisting points 50 are respectively and fixedly connected with the side surface of the long beam on the outer side of the bearing frame 10.
The utility model is suitable for a nuclear power installation job site's heat exchanger introduces the operation of taking one's place. The utility model discloses a heat exchanger hoist and mount running gear has jack-up and removal function, and contains guider, can remove the relevant position according to the construction actual conditions.
Heat exchanger hoist and mount running gear has simplified jack-up mechanical structure, according to the required handling form in scene, divides the structure, includes: bearing frame 10, walking subassembly 20, direction subassembly 30, jack-up hoisting point 40 and pull hoisting point 50. The lifting device can bear heavy objects to finish the actions of translation, lifting and falling, so that the lifting device becomes a simple lifting device which is feasible, safe and stable to be used on site.
The bearing frame 10 is a square frame structure, and comprises a first long beam 101, a second long beam 102, a third long beam 103, a fourth long beam 104,
the two ends of the first long beam 101 and the second long beam 102 are respectively fixedly connected by a first short beam 105 and a second short beam 106;
the two ends of the third long beam 103 and the fourth long beam 104 are respectively fixedly connected by a third short beam 107 and a fourth short beam 108;
two parallel connection assemblies 109 connect the first long beam 101, the second long beam 102, the third long beam 103 and the fourth long beam 104.
The long beam and the short beam comprise a first long beam, a second long beam, a third long beam, a fourth long beam, a first short beam, a second short beam, a third short beam and a fourth short beam which are main bearing parts; preferably, the long and short beams are made of i-steel, that is: the first long beam 101, the second long beam 102, the third long beam 103 and the fourth long beam 104 are all I-steel long beams; because the long beam is stressed more rigorously, only the stress analysis of the long beam is carried out, and the I-steel with the proper type is selected according to the stress analysis result.
The first short beam 105, the second short beam 106, the third short beam 107 and the fourth short beam 108 are all i-steel short beams.
The first long beam 101 is close to the second long beam 102, and the third long beam 103 is close to the fourth long beam 104, so that a structure matched with double long beams is formed; the double long beams are matched to use, namely a supporting and translating track is provided for the hoisting point, the whole device has the potential energy of large bearing capacity, and the overall stability is ensured.
The connecting assembly 109 is only subjected to reaction force formed by rolling friction force between the walking assembly and the ground under the weight of the equipment, the reaction force is small, the material selection is not required to be too harsh, and the connecting assembly is preferably a connecting assembly of channel steel or angle steel.
The walking components 20 are used for the movement of the whole device and are respectively arranged at the bottoms of the four short beams. Preferably, 4-8 tank wheels are respectively arranged at the bottoms of the four short beams; more preferably, the bottom of four short beams is selected to set 1 ~ 2 tank wheels according to equipment weight class tank wheel bearing. The tank wheel has large ground contact, low and stable gravity center and large bearing capacity, and the whole stability and large load of the tank wheel are ensured by selecting the tank wheel as a walking component of a tool.
The guide members 30 are respectively disposed at corners of the carrier 10, such as outer ends of short beams. The guide assembly is used for preventing the heat exchanger hoisting travelling device from being stuck under a narrow travelling condition, and can limit the heat exchanger hoisting travelling device and ensure the heat exchanger hoisting travelling device to stably and linearly move on the travelling rail.
Preferably, the guiding assemblies 30 are 4 universal wheels respectively disposed at the corners of the bearing frame.
The lifting points 40 are respectively disposed between the first long beam 101 and the second long beam 102, and between the third long beam 103 and the fourth long beam 104.
Preferably, the number of the lifting points 40 is 2, which are a first lifting point and a second lifting point, respectively, two ends of the square tube 401 of the first lifting point are fixed between the first long beam 101 and the second long beam 102, and two ends of the square tube 401 of the second lifting point are fixed between the third long beam 103 and the fourth long beam 104;
the first hoisting point and the second hoisting point are symmetrically positioned.
Preferably, referring to fig. 3, the lifting point 40 includes a square pipe 401, a steel plate 402, a lifting hole 403 and a lifting hole 404;
a steel plate 402 is welded between two square pipes 401, and two ends of each square pipe 401 are fixed on the long beam;
the upper end of the steel plate 402 is provided with 2 lifting holes 403, and the lower end is provided with 1 hoisting hole 404.
The traction hoisting points 50 are respectively and fixedly connected to the side surfaces of the long beams on the outer side of the bearing frame 10.
The number of the traction hanging points 50 is 4, 2 of the traction hanging points are fixedly connected to the side surface of the first long beam 101, 2 of the traction hanging points are fixedly connected to the side surface of the fourth long beam 104, and the traction hanging points 50 are symmetrically arranged on the long beams.
The maximum static friction force of the walking assembly is used as the rated load capacity of the traction hoisting point.
When the hoisting device is used in concrete application, the winch is used for connecting the traction hoisting point, the heat exchanger hoisting walking device can be driven by the walking component and the guide component to move in a matched mode, the hoisting point and the hoisting equipment, namely the heat exchanger, are connected by the hoist, and the bearing frame and the hoisting point of the heat exchanger hoisting walking device can bear the hoisting equipment to finish hoisting and falling actions when the hoist is pulled.
The utility model discloses a heat exchanger hoist and mount running gear's each subassembly can handling alone, is assembled by lower supreme on-the-spot welding again, has reduced the risk of environmental restriction frock installation.
The utility model discloses a heat exchanger hoist and mount running gear easy operation is stable. A proper chain block or a winch can be used for connecting the front and rear traction hoisting points of the tool, so that the device can perform front and rear translation motion; the hoisting point can position the in-place central line of hoisting equipment or materials, and then is fixed by spot welding, so that the integral hoisting stability of the heat exchanger hoisting device is ensured; the hoisting point is connected with a proper hoist so that the hoisting equipment can finish hoisting and descending actions; each action is separated, the in-place precision and the stable structure of the hoisting equipment are ensured, and the hoisting safety risk is reduced.
The utility model discloses a heat exchanger hoist and mount running gear simple structure, bearing weight is big, can reach 40t rated load under less than or equal to 2820 mm's span, still can be according to actual demand reselection bearing frame, running gear, jack-up hoisting point, goes to adapt to the equipment handling of any load.
In order to further understand the utility model discloses, it is right to combine the embodiment below the utility model provides a heat exchanger hoist and mount running gear carries out the detailed description, the utility model discloses a scope of protection does not receive the restriction of following embodiment.
Example 1
1.1 aiming at the situation that the lifting environment of a PTR heat exchanger (the external dimension is 2000 multiplied by 1770 multiplied by 9800mm, the weight is 31800kg, and the device is positioned at-4.9 m) is limited, the device cannot be directly positioned after being introduced, and the distance between the temporary storage position and the device positioning position is 800mm along the direction of a basic axis, the actions of lifting and translating the device are realized above a lifting hole (11000 multiplied by 3400mm) by using a lifting walking device, so that the device anchor bolt hole is smoothly matched with a fallen anchor bolt, and the problem that the positioning cannot be completed by a conventional crane is solved.
1.2 the material of the hoisting walking device comprises:
the tank wheel: 4 rated 10t tank wheels;
universal wheel: 4 rated load 1t movable universal wheels;
long beam, short beam: h250 section steel of Q235, a long beam 3380mm and a short beam 1100mm are adopted;
connecting components: 2 channel steel (14) with the length of 4500 mm;
hoisting and hoisting points: cutting 2Q 235 square tubes with the thickness of 100 multiplied by 6mm and Q345 steel plates with the thickness delta of 40mm, and performing combination fillet welding;
traction hoisting point: 4 self-control traction lifting lugs with the bearing capacity of 1 t.
Preparing a main bearing structure component according to required materials, performing a 1.25-time rated load test after the manufacturing, purchasing standard parts such as a guide wheel, a tank theory and the like in advance, manufacturing a lifting lug meeting the bearing requirement in advance, and performing a load test.
1.3 hoist and mount running gear's structure includes:
the device comprises a bearing frame 10, a walking assembly 20, a tank wheel, a guide assembly 30, a universal wheel, a hoisting point 40 and a traction point 50;
the bearing frame 10 is a square frame structure, and comprises a first long beam 101, a second long beam 102, a third long beam 103, a fourth long beam 104,
the two ends of the first long beam 101 and the second long beam 102 are respectively fixedly connected by a first short beam 105 and a second short beam 106;
the two ends of the third long beam 103 and the fourth long beam 104 are respectively fixedly connected by a third short beam 107 and a fourth short beam 108;
two parallel connecting assemblies 109 connect the first long beam 101, the second long beam 102, the third long beam 103 and the fourth long beam 104;
the bottoms of the four short beams are respectively provided with a tank wheel;
the guide assemblies 30-universal wheels are respectively arranged at four corners of the bearing frame 10; the wheel surface of the guide wheel can be positioned between the outer contour line of the main bearing part and the rabbet boundary line of the hoisting hole, and the guide function is successfully achieved.
The number of the lifting points 40 is 2, the lifting points are respectively a first lifting point and a second lifting point, and the lifting points 40 comprise square pipes 401, steel plates 402, lifting holes 403 and lifting holes 404; a steel plate 402 is welded between two square pipes 401, and two ends of each square pipe 401 are fixed on the long beam; the upper end of the steel plate 402 is provided with 2 lifting holes 403, and the lower end is provided with 1 hoisting hole 404.
The two ends of the square tube 401 of the first lifting point are fixed between the first long beam 101 and the second long beam 102, and the two ends of the square tube 401 of the second lifting point are fixed between the third long beam 103 and the fourth long beam 104.
The number of the traction hanging points 50 is 4, 2 of the traction hanging points are fixedly connected to the side surface of the first long beam 101, 2 of the traction hanging points are fixedly connected to the side surface of the fourth long beam 104, and the traction hanging points 50 are symmetrically arranged on the long beams.
1.4 operative use
And 2, connecting the hoisting point with the equipment by using 20t chain blocks, and hoisting the equipment to separate from the temporary in-place position by pulling the chain blocks. And connecting a tool with a winch to draw a hoisting point, pulling the hoisting travelling device to translate for 800mm, and then operating the chain block to enable the equipment to fall into the mounting position.
1.5 benefit, time limit analysis
The hoisting travelling device can accurately translate and lift equipment, and is beneficial to the alignment of bolt holes; the walking component composed of the tank wheels has stable translation and simple operation; the span of the hoisting point is large, so that the structural shaking caused by inertia when the equipment walks is reduced; the guide wheel is arranged, so that the risk of dead translation and clamping can be successfully avoided; the steel wire rope is simple to manufacture, easy to obtain materials and low in cost, and can be used for multiple times in a hoisting environment with the bearing capacity of less than or equal to 40t and the hole diameter of less than or equal to 2820 mm.
1.6 example effects
In the 3 rd month of 2020, the heat exchanger is used for hoisting the traveling device in the in-place process of the second-stage 3# island fuel plant PTR1251EX of the urban defense harbor, the tool runs smoothly, the hoisting effect is good, and the equipment installation meets the technical requirements.
The above description of the embodiments is only intended to help understand the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a heat exchanger hoist and mount running gear which characterized in that includes: the device comprises a bearing frame (10), a walking component (20), a guide component (30), a hoisting point (40) and a traction point (50);
the bearing frame (10) is of a square frame structure and comprises a first long beam (101), a second long beam (102), a third long beam (103) and a fourth long beam (104) which are arranged in parallel,
two ends of the first long beam (101) and the second long beam (102) are respectively fixedly connected by a first short beam (105) and a second short beam (106);
the two ends of the third long beam (103) and the fourth long beam (104) are respectively fixedly connected by a third short beam (107) and a fourth short beam (108);
the two parallel connecting assemblies (109) connect the first long beam (101), the second long beam (102), the third long beam (103) and the fourth long beam (104);
the walking assemblies (20) are respectively arranged at the bottoms of the four short beams;
the guide assemblies (30) are respectively arranged at the corners of the bearing frame (10);
hoisting points (40) respectively arranged between the first long beam (101) and the second long beam (102) and between the third long beam (103) and the fourth long beam (104);
and the traction hoisting points (50) are respectively and fixedly connected with the side surface of the long beam on the outer side of the bearing frame (10).
2. The heat exchanger hoisting walking device as recited in claim 1, wherein the walking assembly (20) comprises 4-8 tank wheels respectively arranged at the bottom of the four short beams.
3. The heat exchanger hoisting travelling device according to claim 1, wherein the guide assemblies (30) are 4 universal wheels respectively arranged at the corners of the bearing frame.
4. The heat exchanger hoisting running gear according to claim 1, wherein the connecting assembly (109) is an angle steel or channel steel assembly.
5. The heat exchanger hoisting running gear according to claim 1, wherein the hoisting point (40) comprises a square pipe (401), a steel plate (402), a lifting hole (403) and a hoisting hole (404);
a steel plate (402) is welded between the two square pipes (401), and two ends of each square pipe (401) are fixed on the long beam;
the upper end of the steel plate (402) is provided with 2 lifting holes (403), and the lower end of the steel plate is provided with 1 hoisting hole (404).
6. The heat exchanger hoisting travelling device according to claim 5, wherein the number of the hoisting points (40) is 2, and the hoisting points are respectively a first hoisting point and a second hoisting point, both ends of a square pipe (401) of the first hoisting point are fixed between the first long beam (101) and the second long beam (102), and both ends of a square pipe (401) of the second hoisting point are fixed between the third long beam (103) and the fourth long beam (104);
the first hoisting point and the second hoisting point are symmetrically positioned.
7. The heat exchanger hoisting travelling device according to claim 1, wherein the number of the traction hoisting points (50) is 4, 2 of the traction hoisting points are fixedly connected to the side surface of the first long beam (101), 2 of the traction hoisting points are fixedly connected to the side surface of the fourth long beam (104), and the traction hoisting points (50) are symmetrically arranged on the long beam.
8. The heat exchanger hoisting travelling device according to claim 1, wherein the first long beam (101), the second long beam (102), the third long beam (103) and the fourth long beam (104) are all I-steel long beams;
the first short beam (105), the second short beam (106), the third short beam (107) and the fourth short beam (108) are all I-steel short beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830018.1U CN213738243U (en) | 2020-08-28 | 2020-08-28 | Heat exchanger hoist and mount running gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830018.1U CN213738243U (en) | 2020-08-28 | 2020-08-28 | Heat exchanger hoist and mount running gear |
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| Publication Number | Publication Date |
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| CN213738243U true CN213738243U (en) | 2021-07-20 |
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| CN202021830018.1U Active CN213738243U (en) | 2020-08-28 | 2020-08-28 | Heat exchanger hoist and mount running gear |
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| CN (1) | CN213738243U (en) |
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