A gas heat exchanger

Abstract

The utility model provides a gas heat exchanger, which includes a frame, a heat exchange tube, a first flange, a second flange and a fastening assembly. The gas heat exchanger provided by the utility model is provided with a plurality of frames, which are arranged adjacent to each other and form a heat exchange channel for gas heat exchange. A first flange and a second flange are respectively arranged on both sides of the frame, and a slot is recessed on the inner wall of the first flange, and a plug plate is fixedly connected to the inner wall of the second flange. When two adjacent frames are connected, the plug plate located on one side of the frame can slide into the slot located on the adjacent frame. The first flange and the second flange are then connected together by a fastening assembly. When the heat exchange efficiency needs to be increased or decreased in the later stage, the length of the heat exchange channel can be changed by increasing or decreasing the number of frames. The frame can be added or reduced according to the needs of the on-site working conditions, and the operation is convenient. There is no need to replace the heat exchanger as a whole to reduce the production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchanger equipment, and in particular relates to a gas heat exchanger. Background Art

[0002] A large amount of greenhouse gases are generated during industrial production. Especially during the rapid development of my country's coal chemical industry, a large amount of coal combustion causes the emission of toxic gases, which aggravates the pollution of the atmospheric environment. Therefore, greenhouse gases need to be treated before they are discharged to the outside world. However, some gases generated during industrial production have high temperatures and need to be cooled before treatment. In order to rationally utilize the heat in the gas, heat exchangers are usually used for heat exchange and cooling. However, the specifications of heat exchangers are mostly fixed at present, and they cannot be changed or replaced according to the requirements of on-site working conditions. In order to ensure effective heat exchange efficiency, it is necessary to design and replace the original heat exchanger separately, which increases the on-site use cost. Utility Model Content

[0003] The embodiment of the utility model provides a gas heat exchanger, aiming to solve the problem of high replacement cost caused by changes in on-site requirements during use of the gas heat exchanger in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a gas heat exchanger, comprising:

[0005] There are multiple frames, and the multiple frames are adjacently arranged to form a heat exchange channel, and the arrangement direction of the multiple frames is defined as a first direction;

[0006] A heat exchange tube is installed on the frame, wherein the air inlet and air outlet of the heat exchange tube are both located outside the frame, and the middle of the heat exchange tube is located inside the frame;

[0007] A first flange is installed on one side of the frame, and a slot is provided on an inner wall of the first flange;

[0008] A second flange is arranged on the other side of the frame opposite to the first flange and is arranged parallel to the first flange along the first direction, and a plug plate is protruded from the outer side of the second flange and is used to slide into the slot;

[0009] A fastening assembly is arranged between the first flange and the second flange, and is used to connect and fix the second flange to the first flange.

[0010] In a possible implementation manner, a guide plate is installed on the inner side of the first flange, and the guide plate and the first flange form the slot.

[0011] In a possible implementation manner, the guide plate and the inner wall of the first flange are arranged at an angle, and the distance between the guide plate and the inner wall of the first flange gradually increases in a direction away from the frame.

[0012] In a possible implementation manner, a sealing strip is installed inside the slot, and when the second flange is connected to the first flange, the plug plate abuts against the sealing strip.

[0013] In a possible implementation manner, a sealing ring is provided around the outer side of the plug plate, and the sealing ring abuts against the side wall of the second flange.

[0014] In a possible implementation, the fastening assembly includes:

[0015] A connecting rod, which passes through the first flange and the second flange, and one end of the connecting rod is provided with a limiting portion for abutting against the first flange or the second flange;

[0016] A tightening member is threadedly connected to the connecting rod and is used to fasten the first flange and the second flange together.

[0017] In a possible implementation, the connecting rod passes through the first flanges and the second flanges on a plurality of the heat exchangers, and the limiting portion and the tightening member on the connecting rod are respectively located at two ends of the heat exchange channel.

[0018] In a possible implementation, a threaded sleeve is fixedly installed on the top of the frame to facilitate hoisting the frame.

[0019] Compared with the prior art, the scheme shown in the embodiment of the present application is provided with a plurality of frames, which are arranged adjacent to each other and form a heat exchange channel for gas heat exchange. A first flange and a second flange are respectively arranged on both sides of the frame, and a slot is recessed on the inner wall of the first flange, and the depth of the slot is arranged along the first direction. A plug plate is fixedly connected to the inner wall of the second flange, and the plug plate protrudes from the second flange. When two adjacent frames are connected, the plug plate on one side of the frame can slide into the slot on the adjacent frame. It plays a role in positioning between the two frames. At the same time, the first flange and the second flange are connected together by a fastening assembly, thereby realizing the connection between the multiple frames. When the heat exchange efficiency needs to be increased or decreased in the later stage, the length of the heat exchange channel can be changed by increasing or decreasing the number of frames, thereby changing the heat exchange effect. The frame can be added or reduced according to the needs of the on-site working conditions, which is easy to operate and does not require the overall replacement of the heat exchanger to reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the structure of a gas heat exchanger provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the connection structure between two adjacent frames provided in an embodiment of the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0023] Description of reference numerals:

[0024] 1. Frame; 2. Heat exchange tube; 3. First flange; 4. Second flange; 5. Fastening assembly; 51. Connecting rod; 52. Tightening piece; 6. Guide plate; 7. Sealing strip; 8. Sealing ring; 9. Threaded sleeve. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Please also read Figures 1 to 3 , the gas heat exchanger provided by the utility model is now described. The gas heat exchanger includes a frame 1, a heat exchange tube 2, a first flange 3, a second flange 4 and a fastening assembly 5. There are multiple frames 1, and multiple frames 1 are arranged adjacent to each other to form a heat exchange channel, and the arrangement direction of the multiple frames 1 is defined as a first direction; the heat exchange tube 2 is installed on the frame 1, and the air inlet and air outlet ends of the heat exchange tube 2 are both located on the outside of the frame 1, and the middle of the heat exchange tube 2 is located inside the frame 1; the first flange 3 is installed on one side of the frame 1, and a slot is provided on the inner wall of the first flange 3; the second flange 4 is arranged on the other side of the frame 1 opposite to the first flange 3, and is arranged in parallel with the first flange 3 along the first direction, and a plug plate for sliding into the slot is protruding from the outer side of the second flange 4; the fastening assembly 5 is arranged between the first flange 3 and the second flange 4, and is used to connect and fix the second flange 4 to the first flange 3.

[0027] Compared with the prior art, the gas heat exchanger provided in this embodiment is provided with a plurality of frames 1, which are arranged adjacent to each other and form a heat exchange channel for gas heat exchange. A first flange 3 and a second flange 4 are respectively arranged on both sides of the frame 1, and a slot is recessed on the inner wall of the first flange 3, and the depth of the slot is arranged along the first direction. A plug plate is fixedly connected to the inner wall of the second flange 4, and the plug plate protrudes from the second flange 4. When two adjacent frames 1 are connected, the plug plate located on one side of the frame 1 can slide into the slot located on the adjacent frame 1. It plays a role in positioning between the two frames 1. At the same time, the first flange 3 and the second flange 4 are connected together by the fastening assembly 5, thereby realizing the connection between the multiple frames 1. When the heat exchange efficiency needs to be increased or decreased in the later stage, the length of the heat exchange channel can be changed by increasing or decreasing the number of frames 1, thereby changing the heat exchange effect. The frame 1 can be added or reduced according to the needs of the on-site working conditions, which is convenient to operate and does not require the overall replacement of the heat exchanger to reduce production costs.

[0028] Specifically, in this embodiment, the frames 1 at both ends are respectively connected with an air inlet bin and an air outlet bin, and the air inlet bin and the air outlet bin are both connected to the heat exchange channel.

[0029] Specifically, in this embodiment, the heat exchange tubes 2 on the multiple frames 1 are used to circulate the high-temperature gas generated in the industrial production process. The heat is exchanged inside the heat exchange channel. The air circulating inside the heat exchange channel absorbs heat and is discharged after passing through the heat exchange tubes 2, so that the heat is fully utilized.

[0030] In some embodiments, the frame 1 may be used as follows: Figure 2 , Figure 3 See also Figure 2 , Figure 3 A guide plate 6 is installed on the inner side of the first flange 3, and the guide plate 6 and the first flange 3 form a slot. A guide plate 6 is fixedly installed inside the frame 1 by welding, and the guide plate 6 is located on the inner side of the first flange 3. The first flange 3 is fixedly installed at the end of one side of the frame 1, so that the guide plate 6 and the inner wall of the frame 1 form a slot.

[0031] Preferably, in this embodiment, the cross section of the frame 1 is a directional structure, and guide plates 6 are fixedly mounted on the four inner walls of the frame 1, and the guide plates 6 are sealed and connected to the inner walls of the frame 1. Two adjacent guide plates 6 are connected end to end and sealed and connected to each other.

[0032] In some embodiments, the guide plate 6 may be Figure 2 , Figure 3 See also Figure 2 , Figure 3, the guide plate 6 is set at an angle to the inner wall of the first flange 3, and the distance between the guide plate 6 and the inner wall of the first flange 3 gradually increases in the direction away from the frame 1. The first flange 3 is fixedly installed at the end of the frame 1, and one side of the guide plate 6 is fixedly installed on the inner wall of the frame 1 by welding, and the guide plate 6 is set at an angle to the inner wall of the frame 1. As a result, the width of the slot gradually decreases in the direction approaching the inside of the frame 1. When connecting between two frames 1, the plug-in plates on the adjacent frames 1 can be easily slid into the inside of the slot, and at the same time, the plug-in plates can be easily attached to the inner wall of the frame 1 through the guidance of the guide plate 6. This facilitates the connection and alignment between the two frames 1.

[0033] In some embodiments, the frame 1 may be used as follows: Figure 2 , Figure 3 See also Figure 2 , Figure 3 A sealing strip 7 is installed inside the slot, and when the second flange 4 is connected to the first flange 3, the plug board abuts against the sealing strip 7. A sealing strip 7 is clamped at the bottom of the slot, and the frame 1 is a directional structure. A sealing strip 7 is installed on each inner wall of the frame 1, and the sealing strips 7 on two adjacent inner walls are connected end to end. When the plug board slides into the slot, one side of the plug board abuts against the sealing strip 7, so that the two adjacent frames 1 can achieve a sealing effect after being connected.

[0034] Preferably, in this embodiment, the second flange 4 is sleeved on the outside of the frame 1, and the second flange 4 is located in the middle of the frame 1, and the plugboard located in the second flange 4 is an integrally formed structure with the frame 1, thereby ensuring the sealing between the plugboard and the frame 1.

[0035] In some embodiments, the above-mentioned plug board can be used as follows Figure 3 See the structure shown. Figure 3 , a sealing ring 8 is arranged around the outer side of the plug plate, and the sealing ring 8 abuts against the side wall of the second flange 4. The sealing ring 8 fits against the side wall of the second flange 4. When two adjacent frames 1 are connected together, the sealing ring 8 is located between the first flange 3 and the second flange 4. After the first flange 3 and the second flange 4 on the two frames 1 are fastened together by the fastening assembly 5, multiple sealing can be achieved in combination with the sealing strip 7, thereby improving the sealing effect during the connection between the two frames 1.

[0036] In some embodiments, the fastening assembly 5 may be configured as follows: Figure 2 , Figure 3 See also Figure 2 , Figure 3The fastening assembly 5 includes a connecting rod 51 and a tightening member 52. The connecting rod 51 is arranged to penetrate the first flange 3 and the second flange 4, and one end of the connecting rod 51 is provided with a limit portion for abutting against the first flange 3 or the second flange 4; the tightening member 52 is threadedly connected to the connecting rod 51, and is used to fasten the first flange 3 and the second flange 4 together. The connecting rod 51 is a bolt, and the tightening member 52 is a nut. A plurality of through holes for installing the connecting rod 51 are correspondingly arranged on the first flange 3 and the second flange 4, and the plurality of through holes are evenly spaced along the circumference of the first flange 3 or the second flange 4. Thus, the circumferences of two adjacent frames 1 are connected and fixed.

[0037] In some embodiments, the connecting rod 51 may be Figure 2 , Figure 3 See also Figure 2 , Figure 3 The connecting rod 51 is arranged through the first flange 3 and the second flange 4 on the multiple heat exchangers, and the limit part and the tightening member 52 on the connecting rod 51 are respectively located at the two ends of the heat exchange channel. A single connecting rod 51 is arranged through the first flange 3 and the second flange 4 on multiple frames 1, and when the connecting rod 51 and the tightening member 52 are disassembled, multiple frames 1 can be disassembled at the same time. This is convenient for later maintenance and reduces unnecessary grooves for disassembling the connecting rod 51.

[0038] In some embodiments, the frame 1 may be used as follows: Figure 1 , Figure 2 See also Figure 1 , Figure 2 The top of the frame 1 is fixedly installed with a threaded sleeve 9 for facilitating the lifting of the frame 1. The top of the frame 1 is fixedly installed with a threaded sleeve 9 by welding, and the threaded sleeve 9 is used to install a lifting ring, and the number of the threaded sleeves 9 is at least two, which is convenient for lifting when the frame 1 is installed on site.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas heat exchanger, characterized in that: include: A plurality of frames (1), wherein the plurality of frames (1) are adjacently arranged to form a heat exchange channel, and an arrangement direction of the plurality of frames (1) is defined as a first direction; A heat exchange tube (2) is installed on the frame (1), the air inlet end and the air outlet end of the heat exchange tube (2) are both located outside the frame (1), and the middle part of the heat exchange tube (2) is located inside the frame (1); A first flange (3) is mounted on one side of the frame (1), and a slot is provided on the inner wall of the first flange (3); A second flange (4) is arranged on the other side of the frame (1) opposite to the first flange (3), and is arranged parallel to the first flange (3) along the first direction, and a plug plate is protruding from the outer side of the second flange (4) and is used to slide into the interior of the slot; A fastening assembly (5) is arranged between the first flange (3) and the second flange (4) and is used to connect and fix the second flange (4) to the first flange (3).

2. The gas heat exchanger according to claim 1, characterized in that: A guide plate (6) is installed on the inner side of the first flange (3), and the guide plate (6) and the first flange (3) form the slot.

3. The gas heat exchanger according to claim 2, characterized in that: The guide plate (6) is arranged at an angle with the inner wall of the first flange (3), and the distance between the guide plate (6) and the inner wall of the first flange (3) gradually increases in a direction away from the frame (1).

4. The gas heat exchanger according to claim 1, characterized in that: A sealing strip (7) is installed inside the slot, and when the second flange (4) is connected to the first flange (3), the plug plate abuts against the sealing strip (7).

5. The gas heat exchanger according to claim 1 or 4, characterized in that: A sealing ring (8) is provided around the outer side of the plug plate, and the sealing ring (8) abuts against the side wall of the second flange (4).

6. The gas heat exchanger according to claim 1, characterized in that: The fastening assembly (5) comprises: a connecting rod (51) passing through the first flange (3) and the second flange (4); one end of the connecting rod (51) is provided with a limiting portion for abutting against the first flange (3) or the second flange (4); A tightening member (52) is threadedly connected to the connecting rod (51) and is used to fasten the first flange (3) and the second flange (4) together.

7. The gas heat exchanger according to claim 6, characterized in that: The connecting rod (51) is arranged to penetrate the first flanges (3) and the second flanges (4) on a plurality of the heat exchangers, and the limiting portion and the tightening member (52) on the connecting rod (51) are respectively located at two ends of the heat exchange channel.

8. The gas heat exchanger according to claim 1, characterized in that: A threaded sleeve (9) is fixedly mounted on the top of the frame (1) to facilitate hoisting of the frame (1).

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