Waste gas heat energy recovery and heat exchange device

Abstract

The utility model provides a waste gas heat energy recovery heat exchange device, which relates to the technical field of heat exchangers, and comprises a box body, a box door arranged on the surface of the box body, two hinges arranged on one side of the box door, the hinges are in key connection with the box body and the box door, a handle is arranged on the surface of the box door, a partition plate is arranged in the box body, and a ventilation opening and a filter screen are arranged at the top end of the partition plate. The filter screen is mounted on the ventilation opening, three mounting frames are arranged on one side of the partition plate, dust intercepting nets are mounted on the top surfaces of the mounting frames, high-temperature flue gas enters the box body from the air inlet and rises upwards during use, the high-temperature flue gas passes through the three dust intercepting nets in the rising process, and dust particles in the high-temperature flue gas can be effectively filtered out by the dust intercepting nets; after passing through the dust intercepting net, high-temperature flue gas enters the area of the finned tube from the ventilation opening and is further filtered by the filter screen when passing through the ventilation opening, and the defect that the waste heat recovery efficiency is reduced due to the fact that dust covers the waste heat recovery device is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and in particular to an exhaust gas heat energy recovery heat exchange device. Background Art

[0002] According to a waste gas heat recovery heat exchange device disclosed in Chinese patent number CN105698551A, it includes an outer wall and an inner cavity, and an air channel and a waste gas channel are arranged inside the inner cavity. The air channel includes an injection chamber, a distribution chamber, a conduction chamber, a convergence structure, a convection chamber and a discharge chamber; the distribution chamber is formed by connecting a number of change-over bricks with inner holes in a funnel-shaped longitudinal section in the horizontal direction, and a gap is arranged between each distribution chamber; the conduction chamber is connected to the top of the distribution chamber through a single joint brick; the conduction chamber is formed by overlapping a group of four cylinder bricks; the top of the conduction chamber is connected to the convection chamber through a convergence structure, and the convergence structure includes a single joint brick and a change-over brick with a large inner hole facing downward, and the convection chamber is formed by overlapping a group of two cylinder bricks; the discharge chamber is arranged at the top of the convection chamber; the waste gas channel includes a waste gas inlet chamber, a waste gas distribution chamber and a waste gas collection chamber. The present invention makes full use of three forms of heat transfer for heat exchange, greatly improving the heat recovery efficiency; and the height of the cylinder body is reduced, and the construction and maintenance costs are significantly reduced.

[0003] The above-mentioned comparative documents and prior art have the following technical problems:

[0004] 1. Flue gas often contains a large amount of ash and dust. For example, in coal-fired and biomass boilers, a large amount of dust enters the flue gas waste heat recovery device along with the flue gas. After the dust covers our waste heat recovery device, our waste heat recovery efficiency is reduced and the resistance to flue gas discharge is increased. Utility Model Content

[0005] The utility model aims to solve the shortcoming in the prior art that the waste heat recovery device is covered by dust, resulting in reduced waste heat recovery efficiency, and proposes a waste gas heat energy recovery and heat exchange device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waste gas heat energy recovery and heat exchange device, comprising a box body, a box door is provided on the surface of the box body, two hinges are provided on one side of the box door, and the hinges are keyed to the box body and the box door, a handle is provided on the surface of the box door, a partition is provided inside the box body, and the partition is set at one end close to the box door, three mounting frames are provided on one side of the partition, and the mounting frames are in a vertical state, the top mounting frame and the bottom mounting frame are installed on the inner wall of the box body, and the middle mounting frame is set on the partition, and a dust interception net is installed on the top surface of the mounting frame.

[0007] Preferably, a vent is provided on the surface of the partition, and the vent is set at the top of the partition, and a filter is provided inside the vent.

[0008] Preferably, an air inlet is provided on the surface of the box body, and the air inlet is set on a side close to the box door, and an air outlet is provided on the surface of the box body, and the air outlet is set on a side away from the air inlet.

[0009] Preferably, a water inlet is provided on the surface of the box body, and the water inlet is set at one end close to the box door, and a water outlet is provided on one side of the water inlet, and the water outlet is set at one end close to the air outlet.

[0010] Preferably, two water pipes are provided inside the box, and the two water pipes are connected to the water inlet and the water outlet.

[0011] Preferably, six fin tubes are provided inside the box body, the six fin tubes are in a vertical state, and both ends of the fin tubes are installed on two water pipes.

[0012] Preferably, a condensate drain port is provided on the bottom surface of the box body, and the condensate drain port is set at one end close to the air outlet, partitions are provided on both sides of the condensate drain port, and four bases are provided on the bottom surface of the box body, and the bases are evenly set at each corner of the box body.

[0013] Beneficial Effects

[0014] In the utility model, a partition is provided inside the box, a vent and a filter are provided at the top of the partition, the filter is installed on the vent, three mounting frames are provided on one side of the partition, and dust interception nets are installed on the top surfaces of the mounting frames. When in use, the high-temperature flue gas will enter the inside of the box from the air inlet and rise upward. During the rising process, it will pass through the three dust interception nets. The dust interception nets will effectively filter out the dust particles in the high-temperature flue gas. After the high-temperature flue gas passes through the dust interception nets, it will enter the area of ​​the fin tube from the vent. When passing through the vent, it will be further filtered by the filter, thereby solving the problem that the waste heat recovery efficiency is reduced due to dust covering the waste heat recovery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an isometric view of the utility model;

[0016] Figure 2 It is a rear view of the utility model;

[0017] Figure 3 For the utility model Figure 2 A longitudinal section view of

[0018] Figure 4 For the utility model Figure 2 Cross-sectional view of .

[0019] Legend:

[0020] 1. Water inlet; 2. Box body; 3. Water outlet; 4. Air outlet; 5. Handle; 6. Base; 7. Air inlet; 8. Hinge; 9. Box door; 10. Mounting frame; 11. Ventilation port; 12. Filter; 13. Condensate drain outlet; 14. Fin tube; 15. Dust interception net; 16. Partition; 17. Water pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0022] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0024] Reference Figure 1-4 A waste gas heat energy recovery and heat exchange device comprises a box body 2, a box door 9 is arranged on the surface of the box body 2, two hinges 8 are arranged on one side of the box door 9, and the hinges 8 are connected to the box body 2 and the box door 9, a handle 5 is arranged on the surface of the box door 9, a partition 16 is arranged inside the box body 2, and the partition 16 is set at one end close to the box door 9, three mounting racks 10 are arranged on one side of the partition 16, and the mounting racks 10 are in a vertical state, the top mounting rack 10 and the bottom mounting rack 10 are installed on the inner wall of the box body 2, and the middle mounting rack 10 is set on the partition 16, a dust interception net 15 is installed on the top surface of the mounting rack 10, a vent 11 is arranged on the surface of the partition 16, and the vent 11 is set at the top of the partition 16, a filter net 12 is arranged inside the vent 11, an air inlet 7 is arranged on the surface of the box body 2, and the air inlet 7 is set at one end close to the box door 9 On the side, an air outlet 4 is provided on the surface of the box body 2, and the air outlet 4 is set on the side away from the air inlet 7, a water inlet 1 is provided on the surface of the box body 2, and the water inlet 1 is set at one end close to the box door 9, a water outlet 3 is provided on one side of the water inlet 1, and the water outlet 3 is set at one end close to the air outlet 4, two water pipes 17 are provided inside the box body 2, and the two water pipes 17 are connected with the water inlet 1 and the water outlet 3, six fin tubes 14 are provided inside the box body 2, the six fin tubes 14 are in a vertical state, and both ends of the fin tubes 14 are installed on the two water pipes 17, a condensate drain port 13 is provided on the bottom surface of the box body 2, and the condensate drain port 13 is set at one end close to the air outlet 4, partitions 16 are provided on both sides of the condensate drain port 13, and four bases 6 are provided on the bottom surface of the box body 2, and the bases 6 are evenly set at each corner of the box body 2.

[0025] An air inlet 7 and an air outlet 4 are provided on the surface of the box body 2. The air outlet 4 is set on a side away from the air inlet 7. A water inlet 1 is provided on the right surface of the air inlet 7. A water outlet 3 is provided on one side of the water inlet 1. Six fin tubes 14 and two water pipes 17 are provided inside the box body 2. The two water pipes 17 are connected to the water inlet 1 and the water outlet 3. The two fin tubes 14 are vertically installed on the water pipes 17. A condensate discharge port 13 is provided on the bottom surface of the box body 2. Both sides of the condensate discharge port 13 are provided with partitions 16. Four bases 6 are also provided on the bottom surface of the box body 2. The bases 6 are set at The base 6 supports the entire box 2 at each corner of the box 2. A partition 16 is provided inside the box 2. A vent 11 and a filter 12 are provided at the top of the partition 16. The filter 12 is installed on the vent 11. Three mounting racks 10 are provided on one side of the partition 16. The top surfaces of the mounting racks 10 are all installed with dust interception nets 15. A door 9 is provided on the surface of the box 2. The door 9 is installed on the box 2 with hinges 8. A handle 5 is provided on the surface of the door 9. When in use, high-temperature smoke will enter the interior of the box 2 from the air inlet 7 and rise upward. During the rising process, it will pass through the three dust interception nets 15. The dust interception net 15 can effectively filter out the dust particles in the high-temperature flue gas. When the high-temperature flue gas passes through the dust interception net 15, it will enter the area of ​​the fin tube 14 from the vent 11. When passing through the vent 11, it will be further filtered by the filter 12. When the high-temperature flue gas enters the area of ​​the fin tube 14, the fin tube 14 will be heated. When the dust interception net 15 is used for a certain period of time, it is necessary to open the box door 9 through the handle 5 and replace the dust interception net 15 with a new dust interception net 15 to prevent affecting the heat exchange. The heated liquid will be discharged from the water inlet. 1 enters the water pipe 17 of the box body 2, and then the water pipe 17 evenly transports the liquid into the fin tube 14. When the fin tube 14 is heated, the fin tube 14 will transfer heat to the liquid inside, so that the liquid is also heated. When the heated liquid enters the water pipe 17 at the end of the fin tube 14, it is discharged from the box body 2 from the water outlet 3 connected to the water pipe 17 to complete the liquid heating. When the high-temperature flue gas heat exchange is completed, it will cool and be discharged from the box body 2 from the air outlet 4. The condensed water generated in the heat exchange process will also drip on the bottom of the box body 2 and be discharged from the box body 2 from the condensed water discharge port 13. Specific embodiment 2:

[0027] Reference Figure 1-4 The mounting frame 10 can be replaced with a slide groove. Three slide grooves are provided on the surface of the partition 16 near the air inlet 7 and the inner wall of the box body 2. The dust interception net 15 is evenly installed inside the box body 2 through the slide grooves. During installation, you only need to align the dust interception net 15 with the slide grooves and push the dust interception net 15 to complete the installation of the dust interception net 15.

[0028] In summary:

[0029] 1. A partition 16 is provided inside the box body 2, and a vent 11 and a filter 12 are provided at the top of the partition 16. The filter 12 is installed on the vent 11. Three mounting frames 10 are provided on one side of the partition 16. The top surfaces of the mounting frames 10 are all installed with dust interception nets 15. When in use, the high-temperature flue gas will enter the box body 2 from the air inlet 7 and rise upward. During the rising process, it will pass through the three dust interception nets 15. The dust interception nets 15 will effectively filter out the dust particles in the high-temperature flue gas. After the high-temperature flue gas passes through the dust interception nets 15, it will enter the area of ​​the fin tube 14 from the vent 11. When passing through the vent 11, it will be further filtered by the filter 12, thereby solving the problem that the waste heat recovery efficiency is reduced due to dust covering the waste heat recovery device.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas heat recovery and heat exchange device, comprising a housing (2), characterized in that: The surface of the box body (2) is provided with a box door (9), one side of the box door (9) is provided with two hinges (8), and the hinges (8) are key-connected to the box body (2) and the box door (9), the surface of the box door (9) is provided with a handle (5), the interior of the box body (2) is provided with a partition (16), and the partition (16) is set at one end close to the box door (9), one side of the partition (16) is provided with three mounting frames (10), and the mounting frames (10) are in a vertical state, the top mounting frame (10) and the bottom mounting frame (10) are installed on the inner wall of the box body (2), and the middle mounting frame (10) is set on the partition (16), and the top surface of the mounting frame (10) is installed with a dust interception net (15).

2. The exhaust gas heat recovery and heat exchange device according to claim 1, characterized in that: A vent (11) is provided on the surface of the partition (16), and the vent (11) is located at the top of the partition (16). A filter screen (12) is provided inside the vent (11).

3. The exhaust gas heat recovery and heat exchange device according to claim 1, characterized in that: An air inlet (7) is provided on the surface of the box body (2), and the air inlet (7) is arranged on a side close to the box door (9); an air outlet (4) is provided on the surface of the box body (2), and the air outlet (4) is arranged on a side away from the air inlet (7).

4. The exhaust gas heat recovery and heat exchange device according to claim 3, characterized in that: A water inlet (1) is provided on the surface of the box body (2), and the water inlet (1) is located at one end close to the box door (9); a water outlet (3) is provided on one side of the water inlet (1), and the water outlet (3) is located at one end close to the air outlet (4).

5. The exhaust gas heat recovery and heat exchange device according to claim 4, characterized in that: Two water pipes (17) are arranged inside the box body (2), and the two water pipes (17) are connected to the water inlet (1) and the water outlet (3).

6. The exhaust gas heat recovery and heat exchange device according to claim 5, characterized in that: Six fin tubes (14) are arranged inside the box body (2), the six fin tubes (14) are in a vertical state, and both ends of the fin tubes (14) are installed on two water pipes (17).

7. The exhaust gas heat recovery and heat exchange device according to claim 3 is characterized in that: The bottom surface of the box body (2) is provided with a condensate discharge port (13), and the condensate discharge port (13) is set at one end close to the air outlet (4), and partitions (16) are provided on both sides of the condensate discharge port (13), and the bottom surface of the box body (2) is provided with four bases (6), and the bases (6) are evenly set at each corner of the box body (2).

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