Turnover tool for vertical high-pressure heater

Abstract

The utility model discloses a vertical type high-pressure heater turning tool which comprises two bases arranged in parallel, the two bases are connected through at least one connecting assembly, supporting pieces are installed on the two bases, brackets for bearing heater lifting lugs are installed on the two supporting pieces, openings are formed in the brackets, and the openings are formed in the bases. A turning-over auxiliary layer is laid on the bearing face in the opening, and the heights of the two ends of the bracket are different. The overturning tool is simple in structure, the vertical high-pressure heater is slowly erected by taking the semicircular structure of the lifting lug bracket as a fulcrum through the design of the overturning tool, so that the overturning of the high-pressure heater is realized, the overturning tool is simple in structure, reasonable in design and low in cost, and compared with the prior art, one auxiliary hoisting machine is omitted, the mechanical cost is saved, and the production efficiency is improved. Meanwhile, the occupied area of a site is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turning over a vertical high-voltage heater, in particular to a turning tool for a vertical high-voltage heater. Background Art

[0002] Currently, thermal power plant construction is becoming increasingly mature, and construction schedules are becoming increasingly tight, requiring construction units to work safely and efficiently. High-pressure heaters are crucial equipment in thermal power plants. These hybrid heaters, connected after the high-pressure feedwater pump, heat the boiler feedwater and use steam extraction from the steam turbine to raise the boiler feedwater temperature, thereby improving the thermal efficiency of the power plant and saving fuel. High-pressure heaters can be arranged in either a vertical or horizontal configuration. Their operating performance and reliability are essentially the same, with no clear advantages or disadvantages. However, vertical high-pressure heaters facilitate centralized placement, reducing plant floor space. Therefore, vertical arrangements are becoming increasingly popular for optimizing plant layout.

[0003] Vertical high-pressure heaters are usually transported to the site horizontally. Because they have many pipe connectors, the existing technology usually uses one large lifting equipment as the main hoist and one large lifting equipment as the auxiliary hoist. Two lifting machines are needed to turn them over to a vertical state. Since large lifting machines are used, there are problems such as high machinery costs, large site occupation area, and low lifting machine utilization efficiency. Therefore, a vertical high-pressure heater turning tool is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a turning tool for a vertical high-voltage heater to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical high-pressure heater turning tool, comprising two parallel bases, the two bases being connected by at least one connecting component, and both bases being equipped with support members, both support members being equipped with brackets for supporting the heater hanging ears, the brackets being provided with an opening, the supporting surface in the opening being covered with a turning auxiliary layer, and the heights of the two ends of the brackets being different.

[0006] As a further solution of the present invention: an anti-dumping assembly is provided between the base and the support member, the anti-dumping assembly includes a horizontal support connected to the base, and the support member and the horizontal support are provided with diagonal supports.

[0007] As a further solution of the present invention: the connecting assembly includes two outer sleeves, which are respectively arranged on opposite sides of the two bases. The two outer sleeves are connected by an inner sleeve inserted into the interior of the two outer sleeves, and the surface of the outer sleeve is provided with a pin shaft passing through the outer sleeve and the inner sleeve.

[0008] As a further solution of the present invention: a plurality of limiting holes for pins to be inserted are designed through the surface of the inner sleeve.

[0009] As a further solution of the present invention: universal wheels are detachably mounted on the bottom of the base to assist its movement.

[0010] As a further solution of the present invention: a universal wheel removal auxiliary piece is further installed on the base, and the position of the universal wheel removal auxiliary piece corresponds to the position of the universal wheel.

[0011] As a further solution of the present invention: the turning-over auxiliary layer is a polytetrafluoroethylene layer pad.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The present application adopts the design of a flipping tool, in which the vertical high-voltage heater is unloaded from the truck by a crane, the lower lifting lug is placed on the bracket of the tool, the head of the vertical high-voltage heater is lifted by the crane and a steel wire rope, and the vertical high-voltage heater is slowly lifted up with the semicircular structure of the lifting lug bracket as a fulcrum by moving the hook and contracting the steel wire rope, thereby realizing the turning over of the high-voltage heater. The application has a simple structure, a reasonable design and a low cost. Compared with the existing technology, the application reduces the use of an auxiliary lifting machine, saves machinery costs, and at the same time reduces the site occupation area and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the turning tool of the present utility model;

[0015] In the figure: 1. Base; 2. Support member; 3. Bracket; 4. Horizontal support; 5. Diagonal support; 6. Turnover auxiliary layer; 7. Outer sleeve; 8. Inner sleeve; 9. Pin; 10. Universal wheel; 11. Universal wheel removal auxiliary member. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1In an embodiment of the present invention, a vertical high-pressure heater turning tool comprises two parallel bases 1, and a plurality of bolt holes are opened on both sides of the base 1. The base 1 can be fixed to the ground by using expansion screws, which improves stability and is also convenient for disassembly. The two bases 1 are connected by at least one connecting component. In this embodiment, preferably, the number of connecting components is two, which can effectively connect the two bases 1 together and ensure the stability between the base 1 and the support 2. The two bases 1 are both equipped with support members 2, and the two support members 2 are both equipped with brackets 3 for supporting the heater ear. The bracket 3 is provided with an opening, and the supporting surface in the opening is paved with a turning auxiliary layer 6, which is a polytetrafluoroethylene layer pad. The setting of the polytetrafluoroethylene layer pad can reduce the friction when the heater is turned over. The heights of the two ends of the bracket 3 are different, wherein the height of one end of the bracket 3 is lower than the height of the other end. This can prevent the heater from sliding backward when turning over, and on the other hand, the raised end can play a certain limiting role, which can facilitate the ear to enter the opening of the bracket 3 more quickly.

[0018] See also Figure 1 In one embodiment, in this embodiment, preferably, an anti-dumping component is provided between the base 1 and the support member 2, and the anti-dumping component includes a horizontal support 4 connected to the base 1, and the support member 2 and the horizontal support 4 are provided with a diagonal support 5, wherein the horizontal support 4 can be specifically an H-shaped steel, the material of which is Q355B, and the diagonal support 5 can be specifically a seamless steel pipe, the material of which is No. 20 steel. By welding the horizontal support 4 to the side of the base 1 and welding the diagonal support 5 between the horizontal support 4 and the ear bracket 3, a stable triangular structure is constructed between the support member 2, the horizontal support 4 and the diagonal support 5, the main function of which is to prevent the ear bracket 3 from overturning, thereby enhancing its anti-overturning performance.

[0019] See also Figure 1 In one embodiment, in this embodiment, preferably, the connecting component includes two outer sleeves 7, which are respectively arranged on opposite sides of the two bases 1, and the two outer sleeves 7 are connected by an inner sleeve 8 inserted into the interior thereof. The surface of the outer sleeve 7 is provided with a pin 9 passing through the outer sleeve 7 and the inner sleeve 8. Specifically, the axial center lines of the inner sleeve 8 and the two outer sleeves 7 are on the same horizontal line, and the inner diameter of the outer sleeve 7 is about 5 mm larger than the outer diameter of the inner sleeve 8, so that the inner sleeve 8 can penetrate into the outer sleeve 7. The surface of the inner sleeve 8 is designed with a plurality of limiting holes for the pin 9 to be inserted. By adjusting the length of the inner sleeve 8 inserted into the outer sleeve 7, the pin 9 penetrates the limiting holes at different positions to achieve adjustment of the distance between the two bases 1, so as to adapt to the turning over of vertical high-pressure heaters of different diameters. At the same time, the pin 9 is installed in a cross shape to increase the stability of the connection between the outer sleeve 7 and the inner sleeve 8.

[0020] See also Figure 1In one embodiment, in this embodiment, preferably, the bottom of the base 1 is detachably installed with a universal wheel 10 to assist its movement, and each base 1 is installed with two universal wheels 10 at the bottom, and the bottoms of multiple universal wheels 10 are all in the same horizontal plane. A universal wheel removal auxiliary part 11 is also installed on the base 1, and the position of the universal wheel removal auxiliary part 11 corresponds one to one to the position of the universal wheel 10. The existence of the universal wheel removal auxiliary part 11 makes it convenient for the operator to use a jack to move the base 1.

[0021] The working principle and usage process of the present invention are as follows: first, after the turning tool is moved to the designated position with the assistance of the universal wheel 10, the operator supports the jack and connects it to the universal wheel removal auxiliary part 11, so that the force of the turning tool is transferred from the universal wheel 10 to the jack. Then, after the operator removes the universal wheel 10, the jack retracts. At this time, the position of the turning tool is fixed. Then, the vertical high-pressure heater is transported horizontally to the site by a transport vehicle, and the vertical high-pressure heater is unloaded by a crane. The lower lifting lug is placed on the bracket 3 of the tool, and the head of the vertical high-pressure heater is lifted by the crane and the wire rope. By moving the hook and contracting the wire rope, the vertical high-pressure heater is slowly erected with the semicircular structure of the bracket 3 as the fulcrum, thereby realizing the turning of the high-pressure heater.

[0022] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0023] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. A vertical high-voltage heater turning tool, comprising two parallel bases (1), characterized in that: The two bases (1) are connected via at least one connecting assembly, and a support member (2) is mounted on each of the two bases (1), and a bracket (3) for supporting the heater lug is mounted on each of the two support members (2), wherein the bracket (3) is provided with an opening, and a turning auxiliary layer (6) is laid on the supporting surface within the opening, and the heights of the two ends of the bracket (3) are different.

2. The vertical high-voltage heater turning tool according to claim 1, characterized in that: An anti-dumping assembly is provided between the base (1) and the support member (2), the anti-dumping assembly comprising a horizontal support (4) connected to the base (1), and an oblique support (5) is provided on the support member (2) and the horizontal support (4).

3. The vertical high-voltage heater turning tool according to claim 1, characterized in that: The connecting assembly comprises two outer sleeves (7), the two outer sleeves (7) being respectively arranged on opposite sides of the two bases (1), the two outer sleeves (7) being connected via an inner sleeve (8) inserted into the interior thereof, and a pin shaft (9) passing through the outer sleeve (7) and the inner sleeve (8) is provided on the surface of the outer sleeve (7).

4. The vertical high-pressure heater turning tool according to claim 3, characterized in that: The surface of the inner sleeve (8) is designed with a plurality of limiting holes for the pin shaft (9) to be inserted.

5. The vertical high-voltage heater turning tool according to claim 1, characterized in that: The bottom of the base (1) is detachably mounted with universal wheels (10) to assist its movement.

6. The vertical high-voltage heater turning tool according to claim 5, characterized in that: A universal wheel removal auxiliary component (11) is also installed on the base (1), and the position of the universal wheel removal auxiliary component (11) corresponds one-to-one to the position of the universal wheel (10).

7. The vertical high-voltage heater turning tool according to claim 1, characterized in that: The turning-over auxiliary layer (6) is a polytetrafluoroethylene layer pad.

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