Tool for replacing main transformer cooler

Abstract

The utility model discloses a tool for replacing a main transformer cooler, and relates to the technical field of transformer substation equipment replacing tools. The device structurally comprises a portal frame, the portal frame comprises a cross beam and supporting legs fixedly connected to the two ends of the cross beam, the supporting legs are connected to a track sliding plate on a track, two pulley trolleys are assembled on the cross beam, and a chain block is hung on each pulley trolley; a first clamp is hung on a lower hook of one chain block; and a second clamp is hung on a lower hook of the other chain block. The first clamp and the second clamp are respectively arranged at the upper end and the lower end of the cooler, and the two chain blocks are used for lifting, so that the requirement on the height of the portal frame is obviously reduced; by means of the design, operation can be conveniently carried out in a power generation room with the limited height. According to the scheme, the two chain blocks are hung on the pulley vehicles correspondingly, and the side pulling assemblies are combined for use, so that the position and the angle of the cooler can be flexibly adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to substation equipment replacement frock technical field, especially relate to a kind of for main transformer cooler replacement frock. BACKGROUND

[0002] Because main transformer room indoor equipment has been installed, now main transformer room indoor environment is complex, hoisting area has part of equipment obstruction and leans towards main transformer side for cobblestone ground, conventional hoisting support cannot enter equipment area to operate.Present stage, main transformer cooler replacement needs to break open enough width of main transformer room wall surface with aerial work platform to pass through main transformer room top lifting point with lifting belt and carry out lifting operation, easy to collide with adjacent equipment, make equipment damaged, operation difficulty is greater.Currently, the cooler replacement frock that already has usually includes portal frame, chain hoist and the like component, the lifting and movement of cooler are realized by the cooperation of portal frame and chain hoist.However, these traditional frocks have some significant deficiencies in the process of use.Height limit: the existing main transformer cooler replacement frock often needs higher portal frame to adapt to the height of cooler, but this is particularly difficult in the space-limited power generation room, leading to unable to effectively carry out cooler replacement operation.There is an urgent need for a main transformer cooler replacement frock with simple structure, easy operation and less space occupation to improve work efficiency and safety and meet the needs of modern power system maintenance.Therefore, it is particularly important to develop a new type of main transformer cooler replacement frock, SUMMARY

[0003] The utility model aims at providing a kind of for main transformer cooler replacement frock, by, solve the existing problem in the upper end and lower end of cooler respectively install first clamp and second clamp, and utilize two chain hoists to lift, significantly reduce the requirement of portal frame height.

[0004] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a kind of for main transformer cooler replacement frock, including portal frame, the portal frame includes crossbeam and the leg of fixed connection in the both ends of crossbeam, the leg is connected on the track slide of track, two pulley cars are assembled on the crossbeam, one chain hoist is respectively hung on two pulley cars;First clamp is hung on the lower hook of one chain hoist;Second clamp is hung on the lower hook of another chain hoist;The first clamp is clamped and installed in the upper end of cooler outer wall;Second clamp is clamped and installed in the lower end of cooler outer wall.

[0006] As a preferred technical scheme of the utility model, two side pull components are installed on the portal frame and two pulley cars.

[0007] As a preferred technical scheme of the utility model, the side pull assembly comprises an iron chain, a reversing wheel and an iron hook fixed on the side surface of the supporting leg, two reversing wheels are respectively installed on the top surface of the two end portions of the cross beam, one end of the iron chain is fixed on the top surface of the trolley, and the iron chain is hung on the iron hook on the same side after passing through the reversing wheel on the same side.

[0008] As a preferred technical scheme of the utility model, the first clamp comprises a first hoop installed on the outer wall of the upper end of the cooler, one portal is fixed on two wing plates of the same hoop plate of the first hoop, and a first lifting ring is fixed on the top surface of the portal.

[0009] As a preferred technical scheme of the utility model, the second clamp comprises a second hoop installed on the outer wall of the lower end of the cooler, and two second lifting rings are fixed on the outer walls of two hoop plates of the second hoop in an axisymmetric manner.

[0010] As a preferred technical scheme of the utility model, rubber pads are arranged between the first hoop and the cooler and between the second hoop and the cooler.

[0011] The utility model has the following beneficial effects:

[0012] The utility model installs a first clamp and a second clamp on the upper end and the lower end of the cooler respectively, and uses two hand-operated hoists to lift, so that the requirement for the height of the portal is reduced. This design enables the operation to be conveniently performed in a power generation room with limited height.

[0013] The utility model uses two hand-operated hoists to be respectively hung on the trolley, and in combination with the use of the side pull assembly, the position and the angle of the cooler can be flexibly adjusted. This not only improves the convenience of operation, but also ensures that the cooler can be smoothly disassembled and assembled under different space conditions.

[0014] The operation steps of the utility model are relatively simple, the clamp is installed first, then the cooler is lifted, and finally the cooler is horizontally moved out. The whole process can be completed by a small number of personnel without the need for complex equipment or tools, so that the operation difficulty and the labor cost are reduced.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The structure schematic view of the main transformer cooler replacement tooling gantry installation state.

[0018] Figure 2 The structure schematic view of the main transformer cooler replacement tooling single hand hoist vertical lifting installation first clamp cooler.

[0019] Figure 3 The structure schematic view of the main transformer cooler replacement tooling two hand hoists horizontal lifting installation first clamp and second clamp cooler.

[0020] Figure 4 The structure schematic view of the first clamp, second clamp and cooler.

[0021] In the drawings, the component list represented by each reference numeral is as follows:

[0022] 1-crossbeam, 2-leg, 3-rail, 4-rail slide plate, 5-pulley car, 6-hand hoist, 7-first clamp, 8-second clamp, 9-cooler, 10-side pull assembly, 101-iron chain, 102-reversing wheel, 103-iron hook, 71-first hoop, 72-gantry, 73-first lifting ring, 81-second hoop, 82-second lifting ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Embodiment one:

[0025] Please refer to Figures 1-4 The utility model discloses a kind of main transformer cooler replacement tooling, including gantry, gantry includes crossbeam 1 and fixedly connected in the both ends of crossbeam 1 leg 2, leg 2 is connected on the rail slide plate 4 of rail 3, two pulley cars 5 are assembled on crossbeam 1, one hand hoist 6 is respectively hung on two pulley cars 5. The lower hook of one hand hoist 6 is hung with first clamp 7. The lower hook of another hand hoist 6 is hung with second clamp 8. First clamp 7 is clamped and installed in the upper end portion outer wall of cooler 9. Second clamp 8 is clamped and installed in the lower end portion outer wall of cooler 9.

[0026] Among them, as shown in Figure 4As shown, the first clamp 7 includes a first hoop 71 mounted on the outer wall of the upper end of the cooler 9. The first hoop 71 is fixed with a portal frame 72 on the same hoop plate and two wing plates. The top surface of the portal frame 72 is fixed with a first lifting ring 73 in the middle. The second clamp 8 includes a second hoop 81 mounted on the outer wall of the lower end of the cooler 9. The two hoop plates of the second hoop 81 are fixed with two second lifting rings 82 on the outer wall in axial symmetry.

[0027] The process of disassembling the main transformer cooler 9 is as follows Figures 1-3 As shown, first lay the track 3 on the cobblestone ground, then install the first clamp 7 on the outer wall of the upper end of the cooler 9, move the portal frame above the cooler 9, use the hook of the first hand-operated hoist 6 to hang on the first lifting ring 73 to vertically lift the cooler 9, then install the second clamp 8 on the outer wall of the lower end of the cooler 9, use the hook of the other hand-operated hoist 6 to hang on the second lifting ring 82 to pull up the lower end of the cooler 9, and the two hand-operated hoists 6 simultaneously lift the cooler 9 horizontally upward. The cooler 9 can be moved horizontally out, reducing the requirement for the height of the portal frame, and facilitating operation in the power generation room with limited height. The process of lowering the disassembled main transformer cooler 9 to the ground and replacing the new cooler 9 will not be repeated.

[0028] Rubber pads are provided between the first hoop 71 and the cooler 9, and between the second hoop 81 and the cooler 9, to avoid damage to the cooler 9 by the clamp. These designs enhance the stability and safety of the entire system and reduce the risk of operation.

[0029] The portal frame and the two pulley cars 5 are provided with two side pulling assemblies 10. The side pulling assembly 10 includes an iron chain 101, a reversing wheel 102, and an iron hook 103 fixed on the side of the support leg 2. The two reversing wheels 102 are respectively installed on the top surface of the two ends of the cross beam 1. One end of the iron chain 101 is fixed on the top surface of the pulley car 5, and the iron chain 101 is hung on the same side iron hook 103 after passing through the same side reversing wheel 102.

[0030] The two side pulling assemblies 10 can adjust the relative distance of the two pulley cars 5 on the cross beam 1, which can be the distance between the suspension points between the first hoop 71 and the second clamp 8 to ensure the horizontal suspension of the cooler 9, and secondly, the position of the two pulley cars 5 relative to one end of the cross beam 1 can be adjusted to avoid the overheight components of the entire generator set.

[0031] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A fixture for replacing a main transformer cooler, comprising a gantry frame, the gantry frame including a crossbeam (1) and legs (2) fixedly connected to both ends of the crossbeam (1), the legs (2) being connected to a track slide (4) on a track (3), characterized in that: Two pulley carts (5) are mounted on the crossbeam (1), and a hand chain hoist (6) is suspended on each of the two pulley carts (5). One of the hand chain hoists (6) has a first clamp (7) attached to its lower hook; Another hand chain hoist (6) has a second clamp (8) attached to its lower hook; The first clamp (7) is clamped and installed on the upper outer wall of the cooler (9); the second clamp (8) is clamped and installed on the lower outer wall of the cooler (9).

2. The tooling for replacing the main transformer cooler according to claim 1, characterized in that, Two side pulley assemblies (10) are installed on the gantry and the two pulley carts (5).

3. The tooling for replacing the main transformer cooler according to claim 2, characterized in that, The side pull assembly (10) includes an iron chain (101), a reversing wheel (102), and an iron hook (103) fixed to the side of the outrigger (2); the two reversing wheels (102) are respectively installed on the top surface of the two ends of the crossbeam (1); one end of the iron chain (101) is fixed to the top surface of the pulley cart (5), and the iron chain (101) passes around the reversing wheel (102) on the same side and is hung on the iron hook (103) on the same side.

4. The tooling for replacing the main transformer cooler according to claim 1, characterized in that, The first clamp (7) includes a first clamp (71) installed on the upper outer wall of the cooler (9); a gantry (72) is fixed on two wing plates on the same clamp plate of the first clamp (71); a first lifting ring (73) is fixed in the middle of the top surface of the gantry (72).

5. The tooling for replacing the main transformer cooler according to claim 4, characterized in that, The second clamp (8) includes a second clamp (81) installed on the outer wall of the lower end of the cooler (9); the outer walls of the two clamp plates of the second clamp (81) are axially symmetrically fixed with two second lifting rings (82).

6. The tooling for replacing the main transformer cooler according to claim 5, characterized in that, Rubber pads are provided between the first clamp (71) and the cooler (9), and between the second clamp (81) and the cooler (9).

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