Steel frame lap joint structure for boiler

Abstract

The utility model relates to the technical field of lap joint structures, and discloses a boiler steel frame lap joint structure which comprises a fixing structure and a dismounting structure, the dismounting structure is in threaded connection with the upper inner wall and the lower inner wall of the fixing structure, the fixing structure comprises two fixing frames, and two connecting frames are welded to the faces, close to each other, of the two fixing frames. The four connecting frames are distributed in a staggered mode, and the upper outer wall and the lower outer wall of each connecting frame are each provided with a row of positioning holes. Through the arrangement of the fixing frames and the connecting frames, the bottom of the boiler is clamped and fixed through the two sides of the fixing frames, the fixing frames and the connecting frames are matched to support the bottom of the boiler, the bolts are connected into the movable grooves of the two fixing plates, the bolts penetrate into the positioning holes of the connecting frames, and the two staggered connecting frames are limited and fixed through the two fixing plates; the overlapping degree of the two connecting frames can be adjusted through the size of the boiler, the distance between the two fixing frames is adjusted by adjusting the distance between the two connecting frames, and the flexibility of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lap joint structure equipment, and particularly relates to a steel frame lap joint structure for boilers. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy in fuel and electric energy, and the boiler outputs steam, high-temperature water or organic heat carriers with a certain amount of heat energy. The boiler steel frame is the main supporting component of the boiler and plays an important role. The connection of the boiler steel frame structure can be divided into weld connection and high-strength bolt connection. In the prior art, most of the connection methods of the boiler steel frame structure are weld connections, which are not convenient for lapping or disassembly, and due to the large weight and occupied space of the boiler steel frame, it is not convenient for transportation. Therefore, we propose a steel frame lap joint structure for power station boilers to solve the above problems.

[0003] The application number is CN202220791905.5, which discloses a steel frame lap joint structure for power station boilers. Aiming at the problems that most of the connection methods of the existing boiler steel frame structure are weld connections, which are not convenient for lapping or disassembly, and due to the large weight and occupied space of the boiler steel frame, it is not convenient for transportation, the following scheme is now proposed. It includes a base, and two symmetric mounting blocks are fixedly installed on the top of the base. First chutes are opened on the tops of the two mounting blocks. Columns are slidably installed in the two first chutes. Second chutes are opened on the tops of the two columns. Vertical rods are slidably installed in the two second chutes. Arc-shaped support frames are fixedly installed on the tops of the two vertical rods. Third chutes are opened on one side of the two columns. The utility model can make the boiler steel frame be convenient for lapping or disassembly during use, so as to be convenient for transportation, with a simple structure and convenient use.

[0004] The steel frame lap joint structure for power station boilers disclosed in the above document has the following defects: during the use of the lap joint structure, when the sizes of boilers are different, the lap joint steel frame cannot support boilers of different sizes, reducing the practicability of the lap joint structure.

[0005] It can be seen that the existing steel frame lap joint structure does not have the function of supporting boilers of different sizes, and it is necessary to improve the existing deficiencies to provide a function that can support boilers of different sizes. Content of the Utility Model

[0006] The purpose of the utility model is to provide a steel frame lap joint structure for boilers to solve the problems raised in the above background technique.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model relates to a steel frame lapping structure for a boiler, which comprises a fixing structure and a disassembly and assembly structure. The disassembly and assembly structure is threadedly connected to the upper and lower inner walls of the fixing structure. The fixing structure includes two fixing frames. Two connecting frames are welded on the side where the two fixing frames are close to each other. The four connecting frames are distributed in a staggered manner. A row of positioning holes are formed on the upper and lower outer walls of the four connecting frames. The purpose of such a setting is that during the use of the lapping structure, the boiler is placed between the two connecting frames, and the bottom of the boiler is clamped and fixed by the two sides of the fixing frames. The fixing frames and the connecting frames cooperate to support the bottom of the boiler. Bolts are connected in the live slots of the two fixing plates, and the bolts penetrate into the positioning holes of the connecting frames, so that the two fixing plates limit and fix the two staggered connecting frames. Nuts and sealing blocks are connected to the bolts. The nuts limit the bolts and the fixing plates, and the sealing blocks reinforce the connection between the bolts and the nuts. When the boiler vibrates during use, the vibration drives the structure to shake. The live slots allow the bolts to float within a small range, reducing the fatigue degree of the bolts. The overlapping degree of the two connecting frames can be adjusted according to the size of the boiler. By adjusting the distance between the two connecting frames, the distance between the two fixing frames can be adjusted, improving the flexibility of the structure.

[0009] Further, the planes of every two connecting frames are adjacent to each other, and a small part of every two connecting frames overlaps. The purpose of such a setting is that during the use of the lapping structure, bolts penetrate into the positioning holes of the connecting frames, so that the two fixing plates limit and fix the two staggered connecting frames, and the two fixing frames are fixed together.

[0010] Further, fixing plates are arranged on the upper and lower surfaces of every two connecting frames. Four live slots are formed on the outer walls of the four fixing plates, and every two live slots are staggered. The purpose of such a setting is that during the use of the lapping structure, when the boiler vibrates during use, the vibration drives the structure to shake. The live slots allow the bolts to float within a small range, reducing the fatigue degree of the bolts. Bolts are connected in the live slots of the two fixing plates, and the bolts penetrate into the positioning holes of the connecting frames, so that the two fixing plates limit and fix the two staggered connecting frames.

[0011] Further, bolts are inserted into two positioning holes where the two connecting frames are close to each other. The bolts are slidably connected to the inner walls of the fixing plates through the live slots. The purpose of such a setting is that during the use of the lapping structure, bolts are connected in the live slots of the two fixing plates, and the bolts penetrate into the positioning holes of the connecting frames, so that the two fixing plates limit and fix the two staggered connecting frames.

[0012] Further, one end of the bolt extends outwards to the outside of the fixing plate, and a nut is threadedly connected to the outer wall of the bolt. The nut is located on the outer wall of the fixing plate. The purpose of such a setting is that during the use of the lapping structure, the nut limits the bolts and the fixing plates.

[0013] Furthermore, a sealing block is sleeved on the outer wall of the bolt, and the sealing block is located between the bolt and the connecting frame. The purpose of this setting is that during the use of this lap joint structure, the sealing block strengthens the connection between the bolt and the nut.

[0014] The utility model has the following beneficial effects:

[0015] (1) Through the arrangement of the fixing frame and the connecting frame, the bottom of the boiler is clamped and fixed by both sides of the fixing frame, and the fixing frame and the connecting frame cooperate to support the bottom of the boiler. Bolts are connected in the movable grooves of the two fixing plates, and the bolts penetrate into the positioning holes of the connecting frame, so that the two fixing plates limit and fix the two staggered connecting frames. The overlapping degree of the two connecting frames can be adjusted according to the size of the boiler, and the distance between the two connecting frames is adjusted to adjust the distance between the two fixing frames, improving the flexibility of the structure.

[0016] (2) Through the arrangement of the movable grooves and the bolts, during the use of this lap joint structure, when the boiler vibrates during use, the vibration drives the structure to shake. The movable grooves allow the bolts to float within a small range, reducing the fatigue degree of the bolts. Bolts are connected in the movable grooves of the two fixing plates, and the bolts penetrate into the positioning holes of the connecting frame, so that the two fixing plates limit and fix the two staggered connecting frames.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the main structure of the fixing structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the split structure of a part of the utility model;

[0022] Figure 4 It is a schematic diagram of the split structure of the disassembly and assembly structure of the utility model;

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] In the figure: 1. Fixed structure; 101. Fixing bracket; 102. Connecting bracket; 103. Positioning hole; 2. Disassembly and assembly structure; 201. Fixed plate; 202. Movable groove; 203. Bolt; 204. Nut; 205. Sealing block. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1 - Figure 4 As shown, the present invention is a steel frame lapping structure for a boiler, including a fixed structure 1 and a disassembly and assembly structure 2. The disassembly and assembly structure 2 is threadedly connected to the upper and lower inner walls of the fixed structure 1. The fixed structure 1 includes two fixing brackets 101. Two connecting brackets 102 are welded to the side where the two fixing brackets 101 are close to each other. The four connecting brackets 102 are distributed alternately. A row of positioning holes 103 are formed on the upper and lower outer walls of the four connecting brackets 102. The purpose of such a setting is that during the use of the lapping structure, the boiler is placed between the two connecting brackets 102, and the bottom of the boiler is clamped and fixed by the two sides of the fixing bracket 101. The fixing bracket 101 and the connecting bracket 102 cooperate to support the bottom of the boiler. The bolts 203 are connected in the movable grooves 202 of the two fixed plates 201, and the bolts 203 pass through the positioning holes 103 of the connecting brackets 102, so that the two fixed plates 201 limit and fix the two staggered connecting brackets 102. Nuts 204 and sealing blocks 205 are connected to the bolts 203. The nuts 204 limit the bolts 203 at the fixed plates 201, and the sealing blocks 205 reinforce the connection between the bolts 203 and the nuts 204. When the boiler vibrates during use, the vibration drives the structure to shake. The movable grooves 202 allow the bolts 203 to float within a small range, reducing the fatigue degree of the bolts 203. The overlapping degree of the two connecting brackets 102 can be adjusted according to the size of the boiler. By adjusting the distance between the two connecting brackets 102, the distance between the two fixing brackets 101 is adjusted, improving the flexibility of the structure.

[0027] The planes of every two connecting brackets 102 are next to each other, and a small part of every two connecting brackets 102 overlaps. The purpose of such a setting is that during the use of the lapping structure, the bolts 203 pass through the positioning holes 103 of the connecting brackets 102, so that the two fixed plates 201 limit and fix the two staggered connecting brackets 102, and the two fixing brackets 101 are fixed together.

[0028] On the upper and lower surfaces of every two connecting frames 102, fixing plates 201 are provided. Four live slots 202 are formed on the outer walls of the four fixing plates 201, and every two live slots 202 are staggered with each other. The purpose of such a setting is that during the use of this lapping structure, when the boiler generates vibrations during use, the vibrations drive the structure to shake, and the live slots 202 allow the bolts 203 to float within a small range, reducing the fatigue degree of the bolts 203. The bolts 203 are connected within the live slots 202 of the two fixing plates 201, and the bolts 203 pass through the positioning holes 103 of the connecting frames 102, so that the two fixing plates 201 limit and fix the two staggered connecting frames 102.

[0029] Bolts 203 are inserted into the two positioning holes 103 close to the two connecting frames 102, and the bolts 203 are slidably connected to the inner walls of the fixing plates 201 through the live slots 202. The purpose of such a setting is that during the use of this lapping structure, the bolts 203 are connected within the live slots 202 of the two fixing plates 201, and the bolts 203 pass through the positioning holes 103 of the connecting frames 102, so that the two fixing plates 201 limit and fix the two staggered connecting frames 102.

[0030] One end of the bolt 203 extends outwards to the outside of the fixing plate 201, and a nut 204 is threadedly connected to the outer wall of the bolt 203. The nut 204 is located on the outer wall of the fixing plate 201. The purpose of such a setting is that during the use of this lapping structure, the nut 204 limits the bolt 203 and the fixing plate 201.

[0031] A sealing block 205 is sleeved on the outer wall of the bolt 203, and the sealing block 205 is located between the bolt 203 and the connecting frame 102. The purpose of such a setting is that during the use of this lapping structure, the sealing block 205 strengthens the connection between the bolt 203 and the nut 204.

[0032] During use, during the use of this lapping structure, the boiler is placed between the two connecting frames 102, and the bottom of the boiler is clamped and fixed through both sides of the fixing frame 101. The fixing frame 101 and the connecting frame 102 cooperate to support the bottom of the boiler. The bolts 203 are connected within the live slots 202 of the two fixing plates 201, and the bolts 203 pass through the positioning holes 103 of the connecting frames 102, so that the two fixing plates 201 limit and fix the two staggered connecting frames 102. A nut 204 and a sealing block 205 are connected to the bolts 203. The nut 204 limits the bolt 203 and the fixing plate 201, and the sealing block 205 strengthens the connection between the bolt 203 and the nut 204. When the boiler generates vibrations during use, the vibrations drive the structure to shake, and the live slots 202 allow the bolts 203 to float within a small range, reducing the fatigue degree of the bolts 203. The overlapping degree of the two connecting frames 102 can be adjusted according to the size of the boiler, and the distance between the two fixing frames 101 can be adjusted by adjusting the distance between the two connecting frames 102, improving the flexibility of this structure.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A steel frame lapping structure for a boiler, comprising a fixing structure (1) and a disassembly and assembly structure (2), characterized in that: The disassembly and assembly structure (2) is screwed to the upper and lower inner walls of the fixed structure (1). The fixed structure (1) includes two fixing brackets (101). On the side where the two fixing brackets (101) are close to each other, two connecting brackets (102) are welded. The four connecting brackets (102) are distributed in an interlaced manner. On the upper and lower outer walls of the four connecting brackets (102), a row of positioning holes (103) are respectively opened.

2. The lap joint structure of the steel frame for a boiler according to claim 1, wherein: At the plane of every two connecting brackets (102), they are adjacent to each other, and a small part of every two connecting brackets (102) overlaps.

3. A steel frame lap joint structure for a boiler according to claim 1, characterized in that: On the upper and lower surfaces of every two connecting brackets (102), fixing plates (201) are provided. On the outer walls of the four fixing plates (201), four movable slots (202) are opened. Every two of the movable slots (202) are interlaced with each other.

4. A steel frame lap joint structure for a boiler according to claim 3, characterized in that: Bolts (203) are inserted into two positioning holes (103) where the two connecting brackets (102) are close to each other. The bolts (203) are slidably connected to the inner walls of the fixing plates (201) through the movable slots (202).

5. A steel frame lap joint structure for a boiler according to claim 4, characterized in that: One end of the bolt (203) extends outwards to the outside of the fixing plate (201). A nut (204) is screwed on the outer wall of the bolt (203), and the nut (204) is located on the outer wall of the fixing plate (201).

6. The lap joint structure of a boiler steel frame according to claim 5, characterized in that: A sealing block (205) is sleeved on the outer wall of the bolt (203), and the sealing block (205) is located between the bolt (203) and the connecting bracket (102).

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