Modularized combined mounting tool for heating surface of thermal power plant

Abstract

The utility model discloses a modular combination and installation tool for a heating surface of a thermal power plant, and mainly relates to the field of modular hoisting of the heating surface of a coal-fired power plant. Comprising a tool frame and a track laid at the bottom of the tool frame, the tool frame is in sliding connection with the track, and a supporting face at the top of the tool frame is an inclined face; according to the utility model, the modular hoisting efficiency of the on-site heating surface can be improved, the high-altitude operation quantity and operation time are reduced, and the construction risk is reduced.

Description

Technical Field

[0001] The utility model relates to the field of modular hoisting of heating surfaces in coal-fired power plants, and specifically to a modular combined installation tool for heating surfaces in thermal power plants. Background Technique

[0002] For the hoisting of heating surfaces in existing thermal power plants, restricted by the distance between boiler steel frames, the modular hoisting method cannot be adopted. Generally, the scattered hoisting and high-altitude combined welding methods are used for installation, resulting in the following problems: First, the hoisting task is heavy, the hoisting efficiency is relatively low, a large amount of labor and mechanical costs are consumed, and the construction period is relatively long; Second, a large number of scattered parts are combined and welded at high altitude, the high-altitude operation time is long, and a safe and reliable operation platform needs to be erected, and the operation risk is relatively high, which is not conducive to on-site safety management. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems existing in the prior art, and to provide a modular combined installation tool for heating surfaces in thermal power plants, which can improve the modular hoisting efficiency of on-site heating surfaces, reduce the amount and time of high-altitude operations, and reduce construction risks.

[0004] In order to achieve the above object, the utility model is realized through the following technical solutions:

[0005] A modular combined installation tool for heating surfaces in thermal power plants includes a tooling frame and tracks laid at the bottom of the tooling frame. The tooling frame is slidably connected to the tracks, and the support surface at the top of the tooling frame is an inclined surface.

[0006] Preferably, the tracks are channel steels, tracks are provided at both the left and right ends of the bottom of the tooling frame, and pulleys adapted to the tracks are provided at the bottom of the tooling frame.

[0007] Preferably, the tooling frame includes a bottom frame, a middle frame, a top inclined support and a number of columns. The bottom frame, the middle frame and the top inclined support are all welded to the columns.

[0008] Preferably, diagonal braces are provided between adjacent columns.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The support surface at the top of the tooling frame of the utility model is an inclined surface. The ultra-wide heating surface assembly is placed obliquely on the top of the tooling frame, which can solve the problem that the ultra-wide heating surface assembly cannot be transported to the boiler furnace due to insufficient distance between steel frames, can realize modular hoisting, improve hoisting efficiency, shorten the construction period, and reduce cost investment; a large number of scattered parts are combined and welded on the ground, reducing the amount of high-altitude combined welding and reducing construction risks. Description of the Drawings

[0011] Figure 1 is a structural schematic diagram of the present utility model;

[0012] Figure 2 is a schematic diagram of the use state of the present utility model.

[0013] Reference numerals in the drawings: 1, tooling frame; 11, bottom frame; 12, middle frame; 13, top inclined bracket; 14, column; 15, diagonal brace; 2, track; 3, ultra-wide heating surface assembly; 4, boiler steel frame. Specific embodiments

[0014] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0015] Embodiment: As shown in the attached Figure 1-2 figure, the present utility model relates to a modular combined installation tooling for the heating surface of a thermal power plant, including a tooling frame 1 and a track 2 laid at the bottom of the tooling frame 1. The tooling frame 1 is slidably connected to the track 2. The support surface at the top of the tooling frame 1 is an inclined surface, and the support surface at the top of the tooling frame 1 is used to carry the ultra-wide heating surface assembly 3. The ultra-wide heating surface assembly 3 includes a secondary superheater assembly, a primary reheater assembly, a secondary reheater assembly, etc.

[0016] Preferably, the track 2 is a channel steel. The left and right ends of the bottom of the tooling frame 1 are both provided with the track 2. The bottom of the tooling frame 1 is provided with pulleys adapted to the track 2. The track 2 is used for the tooling frame 1 to slide horizontally, and the tooling frame 1 can be moved to a suitable hoisting position.

[0017] The distance between column BG and column BH of the boiler steel frame 4 is relatively small, which affects the entry of the ultra-wide heating surface assembly 3 into the hoisting position in the furnace. For this reason, the present utility model provides an inclined support for the ultra-wide heating surface assembly 3, so that the ultra-wide heating surface assembly 3 enters obliquely between column BG and column BH of the boiler steel frame 4.

[0018] Preferably, the tooling frame 1 includes a bottom frame 11, a middle frame 12, a top inclined bracket 13 and a plurality of columns 14. The bottom frame 11, the middle frame 12 and the top inclined bracket 13 are all welded to the columns 14. The bottom frame 11, the middle frame 12, the top inclined bracket 13 and the plurality of columns 14 can all be made of I-beams. Multiple columns can increase the load-bearing capacity of the tooling frame 1. The bottom frame 11 and the middle frame 12 are both horizontally arranged, and the middle frame 12 can increase the bearing capacity of the top inclined bracket 13.

[0019] Preferably, a diagonal brace 15 is welded between two adjacent columns 14. The diagonal brace 15 plays a role in fixed support to ensure the overall stability of the tooling framework 1.

[0020] When the utility model is in use:

[0021] 1. According to the size of the ultra-wide heating surface component 3, select a suitable inclination angle of the support surface, use I-beams to fabricate the tooling framework 1, and timely detect and inspect the welds after welding to ensure the stability of the special tool.

[0022] 2. Combine and weld the heating surface scattered pipes in the assembly yard, clean the garbage, mud stains, etc. on the surface of the component, select appropriate lifting points according to the lifting position, and set temporary lifting lugs. After the inspection and acceptance and preparation work are completed, transport the modular component to the left side of the boiler furnace by a transport vehicle, and fix the heating surface component on the support surface at the top of the tooling framework 1.

[0023] 3. Lay tracks 2 under the tooling framework 1, and use a winch to tow the ultra-wide heating surface component 3 to the appropriate lifting position in the furnace.

[0024] 4. Use 2 winches on the same side to lower the ropes to lift the pipe row at 4 points, and use an 80t truck crane to cooperate in lifting and turning over. After standing upright, cooperate with the mechanical hook removal; after the pipe row enters the installation position, use 4 10t hoists to connect the hooks.

[0025] 5. When the first heating surface component is lifted in place and the hook is connected, the construction personnel enter the furnace interior through the water-cooled wall manhole door. After the 2nd and 3rd row pipe rows are hung in place, use the width of the pipe row itself as the operation platform for the staff to continue lifting the remaining pipe rows.

[0026] 6. After the lifting task of the ultra-wide heating surface component 3 is completed, remove the tooling framework 1, the tracks 2 and the towing winch, and recycle the I-beams.

Claims

1. A modular combined installation tool for heating surfaces in a thermal power plant, characterized in that: It includes a tooling frame (1) and a track (2) laid at the bottom of the tooling frame (1). The tooling frame (1) is slidably connected to the track (2), and the support surface at the top of the tooling frame (1) is an inclined surface.

2. The modular combined installation tooling for the heating surface of a thermal power plant according to claim 1, characterized in that: The track (2) is a channel steel. Tracks (2) are provided at both the left and right ends of the bottom of the tooling frame (1), and pulleys adapted to the tracks (2) are provided at the bottom of the tooling frame (1).

3. The modular combined installation tooling for the heating surface of a thermal power plant according to claim 1, wherein: The tooling frame (1) includes a bottom frame (11), a middle frame (12), a top inclined bracket (13) and a number of columns (14). The bottom frame (11), the middle frame (12) and the top inclined bracket (13) are all welded to the columns (14).

4. A modular combined installation tool for the heating surface of a thermal power plant according to claim 3, characterized in that: A diagonal brace (15) is provided between two adjacent columns (14).

Images