Boiler tower with high installation precision and high stability

Abstract

The utility model relates to a boiler tower with high installation precision and strong stability, and belongs to the technical field of thermal power industry construction. The tower comprises eight steel stand columns arranged in a regular octagon shape, annular cross beams and diagonal braces are connected to the steel stand columns, square base anchors are fixed to the bottom ends of the steel stand columns through rib plates, adjustable cushion blocks are supported between the square base anchors and a ground foundation, and shear keys and foundation bolts are connected between the square base anchors and the ground foundation. The tower disclosed by the utility model is scientific in design, reasonable in structure and simple and quick to install, greatly reduces the field installation difficulty, and improves the installation efficiency; meanwhile, the tower further has the advantages of being high in installation precision and stability, the installation quality of the boiler tower is improved fundamentally, and the tower is worthy of being used for reference of installation projects of the same type.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal power industry construction, in particular to the installation of boilers in power plants, and specifically is a boiler tower with high installation accuracy and strong stability. Background Art

[0002] With the continuous development of my country's thermal power industry, the boilers used in power plants at this stage are mainly divided into two types: pulverized coal boilers and circulating fluidized beds. Relevant investigations have found that during the installation of pulverized coal boilers, the installation of the boiler frame is the top priority of the entire project. The existing boiler frames are all shipped from the factory as loose parts and installed on site. They have many components and are large in size. In addition, some construction personnel lack quality control awareness, making on-site installation extremely difficult, making it difficult to control the quality of frame construction. In addition, due to the relatively simple structural design of the existing boiler frame, the installation accuracy and stability during the installation process cannot achieve the ideal effect, which ultimately seriously affects the overall installation quality of the frame. Summary of the invention

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a boiler tower with high installation accuracy and strong stability.

[0004] The utility model is realized through the following technical solutions:

[0005] A boiler tower with high installation accuracy and strong stability, comprising eight steel columns made of I-beams, the eight steel columns are distributed according to the eight corners of a regular octagon, multiple groups of annular beams are fixed on the eight steel columns from top to bottom, eight oblique tie bars with the same inclination direction are evenly fixed between two adjacent groups of annular beams, the two ends of each oblique tie bar are respectively fixed on two adjacent steel columns and the fixing point coincides with the fixing point of the annular beam and the steel column; a horizontally arranged square anchor plate is fixed on the bottom end of each steel column, and the bottom end of each steel column is fixed with a horizontally arranged square anchor plate. Rib plates are fixed between the front wing plate and the square anchor plate, as well as between the rear wing plate and the square anchor plate; shear keys extending downward into the ground foundation are vertically fixed to the bottom surface of the square anchor plate, and the shear keys are located directly below the center of the web of the steel column; a plurality of pads are evenly distributed and supported between the square anchor plate and the ground foundation, and the plurality of pads form a gap for secondary grouting between the square anchor plate and the ground foundation, and a secondary grouting layer is formed in the gap; anchor bolts are fixedly connected between the four plate edges of the square anchor plate and the ground foundation.

[0006] As an optimal technical solution, there are three rib plates fixed between the wing plate and the square anchor plate of the steel column, namely, one in the middle and one on each side; the middle rib plate is a straight plate body, the bottom end plate edge of which is vertically fixed to the square anchor plate, and the side end plate edge is vertically fixed to the wing plate; the rib plates on both sides are T-shaped plate bodies, the bottom end plate edge of the long plate of the T-shaped plate body is vertically fixed to the square anchor plate and the long plate is arranged parallel to the middle rib plate, the bottom end plate edge of the short plate of the T-shaped plate body is vertically fixed to the square anchor plate, the side end plate edge of the short plate is fixed to the plate edge of the wing plate, and the short plate and the wing plate are located in the same plane.

[0007] As a preferred technical solution, four anchor bolts are evenly fixed to the front and rear edges of the square anchor plate, and one anchor bolt is fixed to the middle position of the left and right edges of the square anchor plate.

[0008] As a preferred technical solution, four pads are evenly supported between the square anchor plate and the ground foundation. The four pads are distributed at the four corners of the rectangle, two of which are located directly below the front wing plate at the bottom end of the steel column, and the other two pads are located directly below the rear wing plate at the bottom end of the steel column.

[0009] As a preferred technical solution, the spacer block is overall in the shape of a cuboid, and includes a plurality of spacers stacked in sequence from bottom to top, wherein the two spacers at the top are wedge-shaped spacers that match each other in a wedge shape, and the remaining spacers are identical flat spacers.

[0010] The tower of the utility model is scientifically designed and reasonably structured, and is simple and quick to install, which greatly reduces the difficulty of on-site installation and improves installation efficiency. At the same time, the tower also has the advantages of high installation precision and strong stability, which fundamentally improves the installation quality of the boiler tower and is worthy of reference and use in similar installation projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings herein are used to provide further description of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0012] Figure 1 It is a schematic diagram of the overall structure of the tower of the utility model.

[0013] Figure 2 for Figure 1 AA section view in.

[0014] Figure 3 for Figure 1 An enlarged schematic diagram of part B in FIG.

[0015] Figure 4 for Figure 3 Top view of the .

[0016] Figure 5 The utility model is a schematic diagram of the structure of the cushion block in the tower.

[0017] In the figure: 1-steel column, 2-annular beam, 3-diagonal tie bar, 4-square anchor plate, 5-front wing plate, 6-rear wing plate, 7-straight plate body, 8-T-type plate body, 9-shear key, 10-web plate, 11-pad, 12-ground foundation, 13-secondary grouting layer, 14-wedge-shaped washer, 15-flat washer, 16-anchor bolt. DETAILED DESCRIPTION

[0018] In order to make those skilled in the art better understand the present invention, the present invention is further explained in detail below with reference to the accompanying drawings and embodiments. It should be noted that the features in the embodiments and embodiments of the present application can be combined with each other without conflict.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "front", "back" and the like indicate directions or positional relationships based on the attached Figure 1-3 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] like Figure 1 and Figure 2 As shown, a boiler tower with high installation accuracy and strong stability comprises eight steel columns 1 made of I-beams, the eight steel columns 1 are distributed according to the eight corners of a regular octagon, a plurality of groups of annular beams 2 are fixed on the eight steel columns 1 from top to bottom, a circle of inclined braces 3 is evenly fixed between two adjacent groups of annular beams 2, a circle of inclined braces 3 comprises eight inclined braces 3 with the same inclination direction, both ends of each inclined brace 3 are respectively fixed on two adjacent steel columns 1 and the fixing point coincides with the fixing point of the annular beam 2 and the steel column 1; the inclined directions of the two adjacent circles of inclined braces 3 are opposite, so that the multiple inclined braces 3 between the two adjacent steel columns 1 are connected in sequence from top to bottom to form a complete serrated structure, so that the integrity of the frame is better, the connection is more firm, and the stability is stronger.

[0022] like Figure 3 and Figure 4 As shown, a horizontally arranged square anchor plate 4 is fixed to the bottom end of each steel column 1, and rib plates are fixed between the front wing plate 5 and the square anchor plate 4 and between the rear wing plate 6 and the square anchor plate 4 at the bottom end of each steel column 1; there are three rib plates fixed between the wing plate and the square anchor plate 4 of the steel column 1, one in the middle and one on each side; the middle rib plate is a straight panel body 7, the bottom end plate edge of which is vertically fixed to the square anchor plate 4, and the side end plate edge of which is vertically fixed to the wing plate; the rib plates on both sides are T-shaped plate bodies 8, and the T-shaped plate body 8 includes a vertically fixed long plate and a short plate, the bottom end plate edge of the long plate of the T-shaped plate body 8 is vertically fixed to the square anchor plate 4 and the long plate is arranged parallel to the middle straight plate body 7, the bottom end plate edge of the short plate of the T-shaped plate body 8 is vertically fixed to the square anchor plate 4, the side end plate edge of the short plate is fixed to the plate edge of the wing plate, and the short plate and the wing plate are located in the same plane.

[0023] like Figure 3 and Figure 4 As shown, a shear key 9 extending downward into the ground foundation is vertically fixed to the bottom surface of the square anchor plate 4. The shear key 9 is located just below the center of the web 10 of the steel column 1 and is made of I-beam.

[0024] like Figure 3 and Figure 4 As shown, a plurality of pads 11 are evenly distributed between the square anchor plate 4 and the ground foundation, and the plurality of pads 11 form a gap for secondary grouting between the square anchor plate 4 and the ground foundation 12, and a secondary grouting layer 13 is grouted in the gap; specifically, four pads 11 are evenly distributed between the square anchor plate 4 and the ground foundation 12, and the four pads 11 are distributed at the four corners of the rectangle, of which two pads 11 are located directly below the front wing plate 5 at the bottom end of the steel column 1, and the other two pads 11 are located directly below the rear wing plate at the bottom end of the steel column 1. Figure 5 As shown, the spacer block 11 is in the shape of a vertical rectangular block as a whole, and includes a plurality of spacers stacked in sequence from bottom to top, wherein the two spacers at the top are wedge-shaped spacers 14 with wedge-shaped matching, and the remaining plurality of spacers are identical flat spacers 15. The height can be preliminarily adjusted by adding or reducing the flat spacers 15, and the height can be precisely adjusted by moving the relative positions of the two wedge-shaped spacers 14.

[0025] like Figure 3 and Figure 4 As shown, four plate edges of the square anchor plate 4 are fixedly connected to the ground foundation 12 with anchor bolts 16; four anchor bolts 16 are evenly fixed to the front plate edge and the rear plate edge of the square anchor plate 4, and one anchor bolt 17 is fixed to the middle position of the left plate edge and the right plate edge of the square anchor plate 4.

[0026] The main structure of the tower frame of the utility model is composed of steel columns 1 distributed in a regular octagon. The regular octagonal support has more support points and is more stable. The steel columns 1 are connected and fixed by multiple groups of annular beams 2 and inclined braces 3, which ensures the rigidity and stability of the frame as a whole. The bottom end of the steel column 1 is fixed with a square anchor plate 4 through a rib plate. The rib plate adopts a straight surface and T-shaped combined rib plate, and a special fixed connection method with the I-beam (steel column 1) is added, which finally makes the fixation between the steel column 1 and the square anchor plate 4 more firm and more stable. The square anchor plate 4 A shear key 9 extending into the ground foundation 12 is fixed on the top, and the shear key 9 can resist the shear force at the bottom of the column to prevent slippage between the square anchor plate 4 and the concrete top surface of the ground foundation 12; a plurality of adjustable pads 11 are supported between the square anchor plate 4 and the ground foundation 12, and the pads 11 can adjust the horizontality of the frame, and can evenly transfer the weight of the frame, the working load and the preload force generated by tightening the anchor bolts to the bottom foundation, so that the elevation and levelness of the equipment meet the specified requirements, and can also provide sufficient operating space for the secondary grouting of the ground foundation 12.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A boiler tower with high installation accuracy and strong stability, characterized by: It includes eight steel columns made of I-beams, which are distributed according to the eight corners of a regular octagon. Multiple groups of annular beams are fixed on the eight steel columns from top to bottom. Eight oblique tie bars with the same inclination direction are evenly distributed and fixed between two adjacent groups of annular beams. The two ends of each oblique tie bar are respectively fixed on two adjacent steel columns, and the fixing points coincide with the fixing points of the annular beams and the steel columns. A horizontally arranged square anchor plate is fixed at the bottom end of each steel column, and the front wing plate at the bottom of each steel column is connected to the square anchor plate. Rib plates are fixed between the square anchor plates and between the rear wing plates and the square anchor plates; shear keys extending downward into the ground foundation are vertically fixed to the bottom surface of the square anchor plates, and the shear keys are located just below the center of the steel column web; a plurality of pads are evenly distributed and supported between the square anchor plates and the ground foundation, and a gap for secondary grouting is formed between the square anchor plates and the ground foundation by the plurality of pads, and a secondary grouting layer is formed by grouting in the gap; anchor bolts are fixedly connected between the four plate edges of the square anchor plate and the ground foundation.

2. The boiler tower with high installation accuracy and strong stability according to claim 1 is characterized in that: There are three rib plates fixed between the wing plate and the square anchor plate of the steel column, one in the middle and one on each side; the middle rib plate is a straight plate body, the bottom end plate edge of which is vertically fixed to the square anchor plate, and the side end plate edge is vertically fixed to the wing plate; the rib plates on both sides are T-shaped plate bodies, the bottom end plate edge of the long plate of the T-shaped plate body is vertically fixed to the square anchor plate and the long plate is arranged parallel to the middle rib plate, the bottom end plate edge of the short plate of the T-shaped plate body is vertically fixed to the square anchor plate, the side end plate edge of the short plate is fixed to the plate edge of the wing plate, and the short plate and the wing plate are located in the same plane.

3. The boiler tower with high installation accuracy and strong stability according to claim 1 is characterized in that: Four anchor bolts are evenly fixed to the front plate edge and the rear plate edge of the square anchor plate, and one anchor bolt is fixed to the middle position of the left plate edge and the right plate edge of the square anchor plate.

4. The boiler tower with high installation accuracy and strong stability according to any one of claims 1 to 3, characterized in that: There are four pads evenly supported between the square anchor plate and the ground foundation. The four pads are distributed at the four corners of the rectangle. Two of the pads are located just below the front wing plate at the bottom end of the steel column, and the other two pads are located just below the rear wing plate at the bottom end of the steel column.

5. The boiler tower with high installation accuracy and strong stability according to claim 4 is characterized in that: The pad block is in the shape of a cuboid as a whole, and comprises a plurality of pads stacked in sequence from bottom to top, wherein the two pads at the top are wedge-shaped pads matched with each other, and the remaining plurality of pads are identical flat pads.

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