Radiation furnace wall and square heating furnace

Abstract

The utility model discloses a radiation furnace wall and a square heating furnace, the radiation furnace wall comprises stand columns and cross beams, the cross beams are connected between the adjacent stand columns, the radiation furnace wall also comprises fragmented channel steel, the fragmented channel steel comprises a pair of channel steel which is arranged back to back and is connected through bolts, and the fragmented channel steel is parallel to the stand columns and is arranged between the two adjacent stand columns. The crossbeams are vertically connected with the stand columns and the fragmented channel steels; a steel frame structure is composed of a plurality of stand columns, cross beams and fragmented channel steel. And the panel is welded on the surface of the steel frame structure and a connecting seam of the fragmented channel steel is reserved. The manufacturing quality of the radiation furnace wall of the square heating furnace is improved, the conformity of the geometric dimension of the furnace wall is improved by adding the fragmented channel steel in the fragmentation mode, the welding deformation degree is reduced, convenience is provided for subsequent transportation and installation of the furnace wall by adding the fragmented channel steel, the installation speed is improved, and the production cost is reduced. Compared with traditional welding, the split channel steel is connected through bolts, the speed is higher, and efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating furnaces, and more specifically, relates to a radiant furnace wall and a square heating furnace. Background Art

[0002] With the large-scale development of domestic and foreign refining and chemical plants, as an essential non-standard equipment in refining and chemical plants, the scale and capacity of heating furnaces have reached new highs, and their weight and height have been continuously increasing.

[0003] The radiation chamber is the main place for heat exchange in a square heating furnace. It is surrounded by the furnace bottom, furnace wall, and furnace top. A complete furnace wall often spans multiple axes, and its length and width (or height) will be very large. Therefore, a segmented form is proposed for the fabrication of the radiant furnace wall of a square heating furnace. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a radiant furnace wall and a square heating furnace to improve the installation efficiency of the furnace wall.

[0005] To achieve the above object, according to one aspect of the utility model, a radiant furnace wall is provided, which includes columns and crossbeams. The crossbeams are connected between adjacent columns. The radiant furnace wall further includes segmented channel steels. The segmented channel steels include a pair of channel steels arranged back to back and connected by bolts. The segmented channel steels are arranged parallel to the columns between two adjacent columns, and the crossbeams are perpendicularly connected to the columns and the segmented channel steels; a steel frame structure is composed of a plurality of columns, crossbeams, and segmented channel steels.

[0006] Further, mounting holes for installing bolts are correspondingly formed on the webs of the pair of channel steels of the segmented channel steels.

[0007] Further, it includes a panel, and the panel is welded to the surface of the steel frame structure with a connection seam of the segmented channel steels left.

[0008] Further, the crossbeams include top crossbeams arranged near the top ends of the columns and bottom crossbeams arranged near the bottom ends of the columns.

[0009] Further, angle steel reinforcement members are fixedly connected between the top crossbeams and the bottom crossbeams.

[0010] Further, angle steel reinforcement members are fixedly connected between adjacent columns.

[0011] According to another aspect of the utility model, a square heating furnace is provided, which includes end walls and side walls, and both the end walls and the side walls are made of the above-mentioned radiant furnace walls.

[0012] The utility model improves the manufacturing quality of the radiation furnace wall of a square heating furnace. The addition of segmented channel steel in the segmented mode improves the compliance of the geometric dimensions of the furnace wall and reduces the degree of welding deformation. The addition of segmented channel steel also facilitates the subsequent transportation and installation of the furnace wall, improves the installation speed, and the bolt connection of the segmented channel steel is faster and more efficient than the traditional welding. Description of the Drawings

[0013] The drawings herein are used to provide further illustration of the utility model, form a part of this application, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation to the utility model.

[0014] Figure 1 It is a schematic structural diagram of the radiation furnace wall;

[0015] Figure 2 It is a schematic structural diagram of the segmented channel steel, Figure 2 -a is the overall structure of the segmented channel steel, Figure 2 -b is the structural diagram of one of the channel steels, Figure 2 -c is the connection schematic diagram of the two;

[0016] Figure 3 It is a schematic structural diagram of the manufacturing platform;

[0017] Figure 4 It is a schematic structural diagram of the square heating furnace.

[0018] In the figure, 1 - column, 2 - cross beam, 3 - segmented channel steel, 4 - panel, 5 - manufacturing platform, 6 - installation hole, 7 - connecting bolt, 8 - angle steel reinforcement, 9 - first channel steel, 10 - second channel steel, 11 - H300 section steel, 12 - end wall, 13 - side wall, 14 - dividing line. Detailed Embodiments

[0019] In order to enable those skilled in the art to better understand the utility model, the following further clearly and completely describes the utility model with reference to the accompanying drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments in this application can be combined with each other.

[0020] A radiation furnace wall provided by a typical embodiment of the utility model includes columns 1 and cross beams 2, and the cross beams are connected between adjacent columns 1. On this basis, it further includes segmented channel steel 3. The segmented channel steel 3 includes a pair of back-to-back arranged channel steels connected by bolts. The segmented channel steel 3 is arranged parallel to the columns 1 between two adjacent columns 1, and the cross beam 2 is vertically connected to the column 1 and the segmented channel steel 3. A steel frame structure is composed of multiple columns 1, cross beams 2, and segmented channel steel 3.

[0021] In this embodiment, the column 1 is an I-beam, such asFigure 1 As shown, multiple columns 1 are arranged in parallel, the section steel channel is added on the midline between adjacent columns 1, the cross beam 2 is divided into left and right sections by the section steel channel 3, and each section is welded to the column 1 and the section steel channel 3 respectively. As Figure 2 shown, the section steel channel includes a first channel steel 9 and a second channel steel 10, which are bolted back to back.

[0022] In a relatively specific embodiment, as Figure 2 shown, mounting holes 6 for installing connection bolts 7 are correspondingly opened on the webs of a pair of channel steels of the section steel channel 3. After the furnace wall is prefabricated, the connection bolts 7 of the section steel channel are removed, and the radiant furnace wall is shipped in sections, which is convenient for transportation.

[0023] In this embodiment, the radiant furnace wall includes a panel 4, and the panel 4 is welded to the surface of the steel frame structure and a connection seam of the section steel channel 3 is left, so as to facilitate the removal of bolts and section the furnace wall.

[0024] As Figure 1 shown, the cross beam 2 includes a top cross beam arranged near the top of the column and a bottom cross beam arranged near the bottom of the column. An angle steel reinforcement 8 is fixedly connected between the top cross beam and the bottom cross beam. Angle steel reinforcements 8 are fixedly connected between adjacent columns 1.

[0025] Another typical embodiment of the present utility model provides a square heating furnace, which includes an end wall 12 and a side wall 13, and both the end wall 12 and the side wall 13 are made of the above-mentioned radiant furnace wall.

[0026] The method for fabricating the radiant furnace wall of the square heating furnace in sections will be described below through a relatively specific embodiment. The fabrication method includes the following steps.

[0027] Step 1, design of the radiant furnace wall in sections;

[0028] Taking each furnace wall column 1 (axis) as a unit, perform segmentation at the midline position between two columns 1 (such as Figure 4 the dividing line 14 in), and add a pair of back-to-back channel steels at the segmentation, which are called section steel channels (such as Figure 1 and Figure 2 ).

[0029] The added section steel channel 3 is cut (or welded) to the designed length. After being spot welded back to back into a whole, drilling of bolt mounting holes is carried out at intervals of 100 mm (such as Figure 2 ).

[0030] Step 2, erection of the furnace wall fabrication platform 5 (such as Figure 3 ).

[0031] The furnace wall production platform is welded in a grid pattern using H300 steel beams 11, and the upper plane of the platform is leveled using flat shims and bevel shims.

[0032] Step 3: Fabrication of the radiant furnace wall steel structure frame;

[0033] Assemble the furnace wall steel structure frame on the production platform 5. The additional segmented channel steels 3 are fixed using bolts, and the remaining parts are welded according to the specification requirements (such as Figure 4 ).

[0034] The outer surface of the radiant furnace wall steel structure frame faces downwards. Diagonal measurements should be taken during the assembly process and after electric welding fixation to ensure that the overall dimensions meet the actual requirements.

[0035] Step 4: Welding of the steel structure frame with plates;

[0036] Weld the panel 4 onto the steel structure frame, leaving a connection seam for the segmented channel 3 during the plate attachment.

[0037] After the plate welding, turn the whole structure over so that the outer surface of the furnace wall faces upwards, and then weld the outer surface welds. Before welding the outer surface welds, use precast cement piers to stack and press the furnace wall columns 1 to prevent welding deformation.

[0038] Step 5: Cutting of reserved holes and factory shipment of the finished product.

[0039] Use a plasma cutting machine to cut the reserved holes such as the viewing door, manhole, and flange opening. Remove the connection bolts of the segmented channel steel, and the radiant furnace wall is shipped in segments.

[0040] In the above manufacturing method, the segmented channel steel 3 is bolt - connected, and the rest are welded.

[0041] The scope of protection required by the present utility model is not limited to the above - mentioned specific embodiments. For those skilled in the art, the present utility model can have various deformations and modifications. Any modification, improvement, and equivalent replacement made within the concept and principle of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A radiation furnace wall, comprising columns and crossbeams, the crossbeams being connected between adjacent columns, characterized in that: It further includes split channel steels, and the split channel steels include a pair of channel steels arranged back to back and connected by bolts. The split channel steels are arranged parallel to the columns between two adjacent columns, and the cross beams are vertically connected to the columns and the split channel steels; a steel frame structure is composed of multiple columns, cross beams and split channel steels.

2. The radiant furnace wall according to claim 1, wherein: Mounting holes for installing bolts are correspondingly formed in the webs of the pair of channel steels of the split channel steels.

3. The radiant furnace wall according to claim 1, characterized in that: It includes a panel, and the panel is welded to the surface of the steel frame structure and a connection seam of the split channel steels is left.

4. The radiant furnace wall according to claim 1, characterized in that: The cross beam includes a top cross beam arranged near the top end of the column and a bottom cross beam arranged near the bottom end of the column.

5. The radiant furnace wall according to claim 3, characterized in that: An angle steel reinforcement is fixedly connected between the top cross beam and the bottom cross beam.

6. The radiant furnace wall according to claim 1 or 5, characterized in that: An angle steel reinforcement is fixedly connected between adjacent columns.

7. A square heating furnace, comprising end walls and side walls, characterized in that: Both the end wall and the side wall are made of the radiant furnace wall according to any one of claims 1-6.

Images