Stainless steel sealing expansion joint of rotary air pre-heater

Abstract

The utility model belongs to the technical field of stainless steel sealing expansion joints, in particular to a stainless steel sealing expansion joint of a rotary air pre-heater, which comprises a connecting frame and an expansion joint, a fixed box is fixedly mounted on the inner side of the connecting frame, a plurality of connecting blocks are arranged above the fixed box, and a mounting plate is fixedly mounted at the top of each connecting block. A screw rod is installed on the inner sides of the connecting frame and the fixing box in a threaded mode, limiting rods are installed on the left sides and the right sides of the inner sides of the connecting frame and the fixing box in a sliding mode, the expansion joint is fixedly installed above the installing box through the arranged disassembling and assembling assembly and slides into the inner side of the fixing box through a connecting block below an installing plate, and a control knob drives the screw rod to rotate; the screw rod can slide in a threaded fit mode after rotating, the limiting rod can limit the sliding frame, the screw rod can drive the sliding frame to slide stably, the sliding frame can drive the multiple clamping blocks to slide into the inner side of the connecting block, and the mounting plate and the fixing box can be connected and mounted conveniently and rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel sealing expansion joints, in particular to a stainless steel sealing expansion joint for a rotary air preheater. Background Art

[0002] An air preheater is a device used to heat the air entering the combustion chamber. Its main function is to improve combustion efficiency, reduce energy consumption, and reduce the content of emissions. Air preheaters are usually installed in boiler or burner systems. By heating the cooled air through the preheater before sending it into the combustion chamber, the amount of fuel used can be reduced and the combustion efficiency can be improved. Air preheaters can adopt different working principles and materials, such as plate heat exchangers, spiral heat exchangers, etc. By using air preheaters, energy can be effectively saved, operating costs can be reduced, and it is also beneficial to environmental protection;

[0003] In the existing devices, when in use, the expansion joints are mostly of integrated design, which are difficult to maintain after damage. Most expansion joints are fixed by welding, which makes disassembly and assembly inconvenient. Therefore, we proposed a rotary air preheater stainless steel sealed expansion joint. Utility Model Content

[0004] The utility model aims to provide a rotary air preheater stainless steel sealing expansion joint, which solves the existing problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotary air preheater stainless steel sealed expansion joint comprises a connecting frame and an expansion joint, wherein a fixing box is fixedly installed on the inner side of the connecting frame, a plurality of connecting blocks are arranged above the fixing box, a mounting plate is fixedly installed on the top of the connecting block, a screw rod is threadedly installed on the inner side of the connecting frame and the fixing box, a limiting rod is slidably installed on the left and right sides of the inner side of the connecting frame and the fixing box, a sliding frame is fixedly installed on one side of the limiting rod, the sliding frame is rotatably installed on the outer side of one end of the screw rod, and a mounting box is fixedly installed on the bottom of the expansion joint; a disassembly assembly, wherein the disassembly assembly is installed on the screw rod, the limiting rod and the sliding frame; a buffer assembly, wherein the buffer assembly is installed on the mounting plate and the mounting box.

[0007] As a further improvement of the above scheme, the disassembly and assembly assembly includes a card block, a limit block and a knob, the card block is fixedly installed on the left and right sides of one side of the sliding frame, the limit block is fixedly installed on the outside of one end of the limit rod, and the knob is fixedly installed on the outside of one end of the screw rod.

[0008] As a further improvement of the above scheme, the buffer assembly includes a connecting plate, a fixed plate, a connecting rod, a fixed block, a spring and a rocker arm. The connecting plate is fixedly installed at the four bottom corners of the mounting box, the fixed plate is fixedly installed at the four top corners of the mounting plate, the connecting rod is rotatably installed on the left and right sides of one side of the connecting plate, the fixed block is rotatably installed on the outside of one end of the connecting rod, the spring is fixedly installed between one side of the fixed block, the rocker arm is rotatably installed on the left and right sides of one side of the fixed plate, and the other end of the rocker arm is rotatably installed on one side of the connecting rod.

[0009] As a further improvement of the above solution, threaded holes are provided on the tops of the installation box and the connecting plate, and fixing bolts are threadedly installed on the inner sides of the threaded holes.

[0010] As a further improvement of the above solution, a plurality of connection grooves are provided on the top of the fixing box, and the spacing between the connection blocks is the same as the spacing between the connection grooves.

[0011] As a further improvement of the above solution, a through slot is provided on one side of the connecting block, and the clamping block fits in the through slot.

[0012] As a further improvement of the above solution, fixing grooves are provided at the connection points between the connecting rod and the rocker and the connecting plate, the fixing plate and the fixing block, and fixing pins are provided inside the fixing grooves.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model relates to a rotary air preheater stainless steel sealing expansion joint. The expansion joint is fixedly installed on the top of the installation box through the disassembly and assembly components provided, and is slid into the inner side of the fixed box through the connection block under the installation plate. The control knob drives the screw rod to rotate, so that the screw rod can slide through the threaded fit after rotation. The limit rod can limit the sliding frame, so that the screw rod drives the sliding frame to slide more stably, so that the sliding frame can drive multiple blocks to slide into the inner side of the connection block, so that the installation plate and the fixed box are connected and installed more conveniently and quickly;

[0015] (2) The utility model provides a rotary air preheater stainless steel sealed expansion joint, which is provided with a buffer component. During use of the device, after the expansion joint is subjected to force, the installation box can drive the connecting plate to be subjected to force. The force exerted on the connecting plate can be transmitted to the top of the connecting rod. The connecting rod is connected to the fixed block, so that the spring between the fixed blocks can move, so that the expansion joint above the installation box has a certain buffer space, and can return to the initial position after the buffering is completed, so that the expansion joint is not easily damaged during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the stainless steel sealing expansion joint of the rotary air preheater proposed by the utility model;

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the stainless steel sealing expansion joint of the rotary air preheater proposed by the utility model;

[0019] Figure 3 It is a partial three-dimensional structural schematic diagram of the stainless steel sealing expansion joint of the rotary air preheater proposed by the utility model;

[0020] Figure 4 This is a partial three-dimensional structural schematic diagram of the stainless steel sealing expansion joint of the rotary air preheater proposed by the utility model.

[0021] In the figure: 1, connecting frame; 2, expansion joint; 3, fixing box; 4, connecting block; 5, mounting plate; 6, screw rod; 7, limit rod; 8, sliding frame; 9, clamping block; 10, limit block; 11, knob; 12, connecting plate; 13, fixing plate; 14, connecting rod; 15, fixing block; 16, spring; 17, rocker; 18, mounting box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] refer to Figure 1-4The rotary air preheater stainless steel sealed expansion joint comprises a connecting frame 1 and an expansion joint 2. A fixed box 3 is fixedly installed on the inner side of the connecting frame 1. The fixed box 3 is convenient for rotating a plurality of screw rods 6 and a limit rod 7. A plurality of connecting blocks 4 are arranged above the fixed box 3. The connecting block 4 is convenient for connecting a mounting plate 5 and a fixed box 3, so that the upper expansion joint 2 can be disassembled more conveniently after being fixed. A mounting plate 5 is fixedly installed on the top of the connecting block 4. A screw rod 6 is threadedly installed on the inner side of the connecting frame 1 and the fixed box 3. The screw rod 6 can drive a sliding frame 8 to slide down after rotation. A limit rod 7 is slidably installed on the left and right sides of the inner side of the connecting frame 1 and the fixed box 3. A sliding frame 8 is fixedly installed on one side of the limit rod 7. The sliding frame 8 can drive The block 9 moves so that the block 9 can slide into the inner side of the connecting block 4 so that it is fixed more tightly. The sliding frame 8 is rotatably installed on the outside of one end of the screw rod 6, and the bottom of the expansion joint 2 is fixedly installed with a mounting box 18; a disassembly assembly, the disassembly assembly is installed on the screw rod 6, the limit rod 7 and the sliding frame 8; a buffer assembly, the buffer assembly is installed on the mounting plate 5 and the mounting box 18; the disassembly assembly includes a block 9, a limit block 10 and a knob 11, the block 9 is fixedly installed on the left and right sides of one side of the sliding frame 8, the limit block 10 is fixedly installed on the outside of one end of the limit rod 7, the limit block 10 makes it easy for the limit rod 7 to be difficult to disengage during the sliding process, so that the limit rod 7 is more stable during the sliding process; the knob 11 is fixedly installed on the outside of one end of the screw rod 6.

[0024] The buffer assembly includes a connecting plate 12, a fixing plate 13, a connecting rod 14, a fixing block 15, a spring 16 and a rocker 17. The connecting plate 12 is fixedly installed at the four bottom corners of the installation box 18, the fixing plate 13 is fixedly installed at the four top corners of the installation plate 5, the connecting rod 14 is rotatably installed on the left and right sides of one side of the connecting plate 12, and the connecting rod 14 is convenient for the connecting plate 12 to drive the connecting rod 14 to move after being subjected to force, the fixing block 15 is rotatably installed on the outer side of one end of the connecting rod 14, and the spring 16 is fixedly installed between one side of the fixing block 15, and the spring 16 is convenient for the device to have a certain buffering effect, so that the expansion joint 2 is not easily damaged. The rocker 17 is rotatably installed on the left and right sides of one side of the fixing plate 13, and the other end of the rocker 17 is rotatably installed on one side of the connecting rod 14; threaded holes are provided on the tops of the installation box 18 and the connecting plate 12, and fixing bolts are threadedly installed on the inner sides of the threaded holes; the threaded holes facilitate the installation box 18 to be installed above the connecting plate 12.

[0025] A plurality of connecting grooves are provided on the top of the fixed box 3, and the spacing of the connecting blocks 4 is the same as that of the connecting grooves; the positioning groove facilitates the convenient and quick positioning of the connecting block 4 and the fixed box 3; a through groove is provided on one side of the connecting block 4, and the clamping block 9 fits in the through groove; fixing grooves are provided at the connection between the connecting rod 14 and the rocker arm 17 and the connecting plate 12, the fixing plate 13 and the fixing block 15, and fixing pins are provided on the inner side of the fixing grooves; the connecting rod 14 and the rocker arm 17 are relatively stable during the rotation process, so that they are not easily separated.

[0026] The implementation principle of the rotary air preheater stainless steel sealed expansion joint in the embodiment of the present application is as follows: the expansion joint 2 is fixedly installed on the top of the installation box 18, and slides into the inner side of the fixed box 3 through the connecting block 4 under the installation plate 5, and the control knob 11 drives the screw rod 6 to rotate, so that the screw rod 6 can slide through the threaded fit after rotation, and the limit rod 7 can limit the sliding frame 8, so that the screw rod 6 drives the sliding frame 8 to slide more stably, so that the sliding frame 8 can drive multiple card blocks 9 to slide into the inner side of the connecting block 4, so that the installation plate 5 and the fixed box 3 are connected and installed more conveniently and quickly; during the use of the device, after the expansion joint 2 is subjected to force, the connecting plate 12 can be subjected to force through the installation box 18, and the force exerted on the connecting plate 12 can be transmitted to the top of the connecting rod 14, and the connecting rod 14 is connected to the fixed block 15, so that the spring 16 between the fixed block 15 can move, so that the expansion joint 2 above the installation box 18 has a certain buffer space, and can return to the initial position after the buffering is completed, so that the expansion joint 2 is not easily damaged during use.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The above is a detailed introduction to the rotary air preheater stainless steel sealing expansion joint provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. Rotary air preheater stainless steel sealing expansion joint, characterized by: include: A connecting frame (1) and an expansion joint (2), wherein a fixing box (3) is fixedly installed on the inner side of the connecting frame (1), a plurality of connecting blocks (4) are arranged above the fixing box (3), a mounting plate (5) is fixedly installed on the top of the connecting block (4), a screw rod (6) is threadedly installed on the inner side of the connecting frame (1) and the fixing box (3), a limiting rod (7) is slidably installed on the left and right sides of the inner side of the connecting frame (1) and the fixing box (3), a sliding frame (8) is fixedly installed on one side of the limiting rod (7), and the sliding frame (8) is rotatably installed on the outer side of one end of the screw rod (6), and a mounting box (18) is fixedly installed on the bottom of the expansion joint (2); A disassembly assembly component, wherein the disassembly assembly component is mounted on the screw rod (6), the limit rod (7) and the sliding frame (8); A buffer assembly is installed on a mounting plate (5) and a mounting box (18).

2. The rotary air preheater stainless steel sealing expansion joint according to claim 1 is characterized in that: The disassembly and assembly assembly comprises a clamping block (9), a limiting block (10) and a knob (11); the clamping block (9) is fixedly mounted on the left and right sides of one side of the sliding frame (8); the limiting block (10) is fixedly mounted on the outside of one end of the limiting rod (7); and the knob (11) is fixedly mounted on the outside of one end of the screw rod (6).

3. The rotary air preheater stainless steel sealing expansion joint according to claim 1, characterized in that: The buffer assembly comprises a connecting plate (12), a fixing plate (13), a connecting rod (14), a fixing block (15), a spring (16) and a rocker (17); the connecting plate (12) is fixedly mounted on the four bottom corners of the mounting box (18); the fixing plate (13) is fixedly mounted on the four top corners of the mounting plate (5); the connecting rod (14) is rotatably mounted on the left and right sides of one side of the connecting plate (12); the fixing block (15) is rotatably mounted on the outside of one end of the connecting rod (14); the spring (16) is fixedly mounted between one side of the fixing block (15); the rocker (17) is rotatably mounted on the left and right sides of one side of the fixing plate (13); and the other end of the rocker (17) is rotatably mounted on one side of the connecting rod (14).

4. The rotary air preheater stainless steel sealing expansion joint according to claim 1, characterized in that: The tops of the installation box (18) and the connecting plate (12) are provided with threaded holes, and fixing bolts are threadedly installed inside the threaded holes.

5. The rotary air preheater stainless steel sealing expansion joint according to claim 1, characterized in that: The top of the fixing box (3) is provided with a plurality of connection grooves, and the spacing between the connection blocks (4) is the same as the spacing between the connection grooves.

6. The rotary air preheater stainless steel sealing expansion joint according to claim 2, characterized in that: A through slot is provided on one side of the connection block (4), and the clamping block (9) fits in the through slot.

7. The rotary air preheater stainless steel sealing expansion joint according to claim 3, characterized in that: A fixing groove is provided at the connection between the connecting rod (14) and the rocker (17) and the connecting plate (12), the fixing plate (13) and the fixing block (15), and a fixing pin is provided inside the fixing groove.

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