Gas dust removal and heat exchange integrated heat recoverer

Abstract

The utility model relates to the technical field of heat recoverers, and discloses a gas dust removal and heat exchange integrated heat recoverer which comprises heat exchanger single boxes arranged side by side, the surfaces of the heat exchanger single boxes are fixedly connected with a middle connection air channel, the surface of the heat exchanger single box located on the leftmost side is connected with a cold air inlet, and the surface of the heat exchanger single box located on the leftmost side is connected with a cold air outlet. The surface of the heat exchanger single box located on the rightmost side is connected with a preheated air outlet, the top of the middle air duct located on the rightmost side is connected with a high-temperature tail gas inlet, and the top of the middle air duct located on the leftmost side is connected with a low-temperature tail gas outlet. High-temperature tail gas passes through a communicating single tube and passes through a tube pass, cold air passes through a heat exchanger single box and passes through a shell pass, the flow directions of the tail gas and the air are conducted oppositely, the exchange efficiency of heat in the tail gas can be improved, the baffle plates are arranged, and the cold air is folded back for multiple times in the equipment through blocking and guiding of the baffle plates, so that the heat exchange efficiency is improved. Therefore, the conveying time of the cold air in the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery devices, in particular to a gas dust removal and heat exchange integrated heat recovery device. Background Art

[0002] The existing gas dust removal heat exchanger adopts gas-to-gas heat exchange, where turbid gas passes through the tube side inside the heat exchanger and clean gas is introduced into the shell side of the heat exchanger. When the heat energy of the turbid gas is high and the dust content is heavy, it is easy to cause blockage inside the tube side. The reason for the easy blockage is that the heat exchange residence time of the hot gas in the gas-to-gas heat exchanger is short, and all heat exchange surfaces are in a high dust concentration area. When there is condensation, a good passage cannot be formed for anti-blocking treatment. When blocked, the heat recovery rate of the gas-to-gas heat exchanger cannot be guaranteed. Therefore, those skilled in the art provide a gas dust removal and heat exchange integrated heat recovery device to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a gas dust removal and heat exchange integrated heat recovery device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A gas dust removal and heat exchange integrated heat recovery device comprises heat exchanger monomer boxes, the heat exchanger monomer boxes are arranged in parallel, and two adjacent heat exchanger monomer boxes are connected to each other, the two adjacent heat exchanger monomer boxes are staggered, and the surface of the heat exchanger monomer boxes is fixedly connected with a central air duct, and the central air duct is located on the front surface or the rear surface of the heat exchanger monomer box, and the width of the central air duct is equal to the staggered width of the two adjacent heat exchanger monomer boxes, the surface of the heat exchanger monomer box located on the far left is connected with a cold air inlet, the surface of the heat exchanger monomer box located on the far right is connected with a preheated air outlet, the top of the central air duct located on the far right is connected with a high-temperature exhaust gas inlet, and the top of the central air duct located on the far left is connected with a low-temperature exhaust gas outlet.

[0006] As a further solution of the utility model: the lower sides of the heat exchanger single box and the central air duct are commonly connected with a dust separation box, and the lower end of the dust separation box is provided with a dust collecting cage.

[0007] As a further solution of the utility model: baffles are fixedly connected inside the middle heat exchanger single box, and the baffles inside two adjacent heat exchanger single boxes are staggered with each other.

[0008] As a further solution of the utility model: a collection area is provided in the upper part of the chamber of the heat exchanger single box, and a connecting single tube is provided in the lower part of the chamber of the heat exchanger single box. The connecting single tube is vertically arranged, and the upper end of the connecting single tube is connected to the collection area, and the lower end of the connecting single tube is connected to the dust separation box.

[0009] As a further solution of the utility model: the lower end of the central air duct is connected to the dust separation box, the upper end of the central air duct is provided with a connecting pipe, and the other end of the connecting pipe is connected to the collection area in the adjacent heat exchanger monomer box chamber.

[0010] As a further solution of the utility model: a partition is provided inside the dust separation box, and the partition is respectively located at the lower side of the connection between two adjacent heat exchanger monomer boxes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The high-temperature exhaust gas passes through the connected single tube for the tube side, and the cold air passes through the heat exchanger single box for the shell side. The flow directions of the exhaust gas and the air are relative, which can improve the heat exchange efficiency in the exhaust gas. By setting a baffle and utilizing the blocking and guiding of the baffle, the cold air can be turned back many times inside the equipment, thereby extending the transportation time of the cold air inside the equipment. The connected single tube through which the exhaust gas passes is vertically arranged, which can prevent the smoke and dust in the exhaust gas from being blocked inside the connected single tube and facilitate the passage of the exhaust gas. Under the force of gravity, some of the smoke and dust particles in the exhaust gas will fall into the dust separation box below, and the smoke and dust particles will be collected by the dust separation box. Finally, the smoke and dust particles can be discharged through the dust collecting cage to achieve dust removal of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of a gas dust removal and heat exchange integrated heat recovery device;

[0014] Figure 2 A top view of a gas dust removal and heat exchange integrated heat recovery device;

[0015] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0016] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure in the BB direction with the vertical single tube omitted.

[0017] In the figure: 1. Cold air inlet; 2. Preheated air outlet; 3. High-temperature exhaust gas inlet; 4. Low-temperature exhaust gas outlet; 5. Dust collection cage; 6. Heat exchanger unit box; 61. Collection area; 62. Connecting single pipe; 7. Central air duct; 71. Connecting pipe; 8. Baffle; 9. Dust separation box. DETAILED DESCRIPTION

[0018] See also Figures 1 to 4 In an embodiment of the utility model, a gas dust removal and heat exchange integrated heat recovery device includes a heat exchanger monomer box 6, the heat exchanger monomer boxes 6 are arranged in parallel, and two adjacent heat exchanger monomer boxes 6 are connected to each other, the two adjacent heat exchanger monomer boxes 6 are staggered, and the surface of the heat exchanger monomer box 6 is fixedly connected with a central air duct 7, and the central air duct 7 is located on the front surface or the rear surface of the heat exchanger monomer box 6, and the width of the central air duct 7 is equal to the staggered width of the two adjacent heat exchanger monomer boxes 6, which can make the front surface and the rear surface of the equipment both in a flat state and more beautiful. The surface of the heat exchanger monomer box 6 located on the far left is connected to a cold air inlet 1, and the surface of the heat exchanger monomer box 6 located on the far right is connected to a preheated air outlet 2, the top of the central air duct 7 located on the far right is connected to a high-temperature exhaust gas inlet 3, and the top of the central air duct 7 located on the far left is connected to a low-temperature exhaust gas outlet 4.

[0019] Preferably, the lower sides of the heat exchanger single box 6 and the central air duct 7 are commonly connected to a dust separation box 9, and a dust collecting cage 5 is provided at the lower end of the dust separation box 9, so that smoke particles in the exhaust gas can be collected through the dust separation box 9 and finally discharged through the dust collecting cage 5.

[0020] Preferably, the baffles 8 are fixed inside the middle heat exchanger single box 6, and the baffles 8 inside two adjacent heat exchanger single boxes 6 are staggered with each other, which can block the air inside the equipment and extend the time for air to pass through the heat exchanger single box 6.

[0021] Preferably, a collection area 61 is provided at the upper part of the chamber of the heat exchanger monomer box 6, and a connecting single tube 62 is provided at the lower part of the chamber of the heat exchanger monomer box 6. The connecting single tube 62 is vertically arranged, and the upper end of the connecting single tube 62 is connected to the collection area 61, and the lower end of the connecting single tube 62 is connected to the dust separation box 9.

[0022] Preferably, the lower end of the central air duct 7 is connected to the dust separation box 9 , a connecting pipe 71 is provided at the upper end of the central air duct 7 , and the other end of the connecting pipe 71 is connected to the collecting area 61 in the chamber of the adjacent heat exchanger monomer box 6 .

[0023] Preferably, a partition is provided inside the dust separation box 9, and the partition is respectively located at the lower side of the connection between two adjacent heat exchanger monomer boxes 6.

[0024] The working principle of the utility model is as follows: when the gas is subjected to dust removal and heat exchange, the high-temperature exhaust gas is introduced into the interior of the equipment from the high-temperature exhaust gas inlet 3, passes through the collecting area 61, and then passes through the connecting single tube 62, the high-temperature exhaust gas enters the dust separation box 9 below, and then passes through the central air duct 7, so that the exhaust gas moves upward, and then the exhaust gas enters the collecting area 61 of the next heat exchanger monomer box 6 through the connecting pipe 71, and then continues to pass through the connecting single tube 62 in the next heat exchanger monomer box 6, and finally the exhaust gas is discharged from the low-temperature exhaust gas outlet 4 after passing through multiple heat exchanger monomer boxes 6. When the exhaust gas is introduced into the interior of the equipment, it is necessary to introduce the cold air into the interior of the equipment from the cold air inlet 1, and after being blocked and guided by the baffle 8, the cold air is turned back many times inside the equipment, thereby extending the transportation time of the cold air inside the equipment, and because the high-temperature exhaust gas passes through the connecting single tube 62, and the cold air enters the equipment, By passing through the outside of the connecting single tube 62, the high-temperature exhaust gas can transfer its heat to the cold air, thereby heating the cold air, and finally the heated air is discharged from the preheated air outlet 2, thereby realizing the heat exchange between the exhaust gas and the cold air, and because the connecting single tube 62 is vertically arranged, the smoke in the exhaust gas can be prevented from being blocked in the inside of the connecting single tube 62, and a small amount of smoke particles attached to the inner wall of the connecting single tube 62 will also fall into the dust separation box 9 on the lower side under the influence of gravity and the subsequent exhaust gas introduction process. When the exhaust gas enters the central air duct 7 from the dust separation box 9, the exhaust gas flows upward, and some of the smoke particles in the exhaust gas will also fall into the dust separation box 9 below under the influence of gravity. The smoke particles are collected by the dust separation box 9, and finally the smoke particles can be discharged through the dust collecting cage 5, thereby realizing the dust removal of the exhaust gas, and the flow directions of the exhaust gas and the air are relatively carried out, thereby ensuring the heat exchange efficiency in the exhaust gas.

[0025] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A gas dust removal and heat exchange integrated heat recovery device, comprising a heat exchanger monomer box (6), characterized in that: The heat exchanger monomer boxes (6) are arranged in parallel, and two adjacent heat exchanger monomer boxes (6) are interconnected, and the two adjacent heat exchanger monomer boxes (6) are staggered, and the surface of the heat exchanger monomer box (6) is fixedly connected with a central air duct (7), and the central air duct (7) is located on the front surface or the rear surface of the heat exchanger monomer box (6), and the width of the central air duct (7) is equal to the width of the staggered two adjacent heat exchanger monomer boxes (6), the surface of the heat exchanger monomer box (6) located on the far left is connected with a cold air inlet (1), the surface of the heat exchanger monomer box (6) located on the far right is connected with a preheated air outlet (2), the top of the central air duct (7) located on the far right is connected with a high-temperature exhaust gas inlet (3), and the top of the central air duct (7) located on the far left is connected with a low-temperature exhaust gas outlet (4).

2. The gas dust removal and heat exchange integrated heat recovery device according to claim 1, characterized in that: The lower sides of the heat exchanger single box (6) and the central air duct (7) are commonly connected to a dust separation box (9), and a dust collection cage (5) is provided at the lower end of the dust separation box (9).

3. The gas dust removal and heat exchange integrated heat recovery device according to claim 1, characterized in that: The heat exchanger single box (6) located in the middle is fixedly provided with a baffle plate (8) inside, and the baffle plates (8) inside two adjacent heat exchanger single boxes (6) are arranged in a staggered manner with respect to each other.

4. The gas dust removal and heat exchange integrated heat recovery device according to claim 2, characterized in that: The upper part of the chamber of the heat exchanger monomer box (6) is provided with a collecting area (61), and the lower part of the chamber of the heat exchanger monomer box (6) is provided with a connecting single pipe (62), the connecting single pipe (62) is arranged vertically, the upper end of the connecting single pipe (62) is connected to the collecting area (61), and the lower end of the connecting single pipe (62) is connected to the dust separation box (9).

5. The gas dust removal and heat exchange integrated heat recovery device according to claim 4, characterized in that: The lower end of the central air duct (7) and the dust separation box (9) are in communication with each other, and a connecting pipe (71) is provided at the upper end of the central air duct (7), and the other end of the connecting pipe (71) is in communication with the collecting area (61) in the chamber of the adjacent heat exchanger monomer box (6).

6. The gas dust removal and heat exchange integrated heat recovery device according to claim 4, characterized in that: The dust separation box (9) is provided with partitions inside, and the partitions are respectively located at the lower side of the connection between two adjacent heat exchanger monomer boxes (6).

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