Waste gas heat recovery device

Abstract

The utility model discloses a waste heat recovery and utilization device for waste gas, which belongs to the field of waste heat recovery technology. It solves the defects of cumbersome installation and poor waste heat recovery effect of traditional waste heat recovery devices in the prior art. Its main structure includes a main box body, an exhaust hood is fixedly installed on one side of the main box body, an air intake hood is fixedly installed on the other side, a rotating mounting plate is movably installed at the front end, a plurality of heat exchange copper tubes are inserted into the interior of the rotating mounting plate, a rotating water guide plate is movably installed at the rear end of the main box body, a partition plate is integrally formed inside the rotating water guide plate, a rotating joint is fixedly installed at the rear end of the rotating water guide plate, a water pipe joint is fixedly installed at the rear end of the rotating joint, a belt mounting ring is fixedly installed at the rear end of the rotating water guide plate on the outside of the rotating joint, a connecting mounting plate is fixedly installed at the rear end of the main box body on one side of the rotating water guide plate, and a driving pulley is movably installed at the front end of the connecting mounting plate. The utility model is mainly used for waste heat recovery of waste gas.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste heat recovery, and in particular relates to a waste gas waste heat recovery and utilization device. Background Art

[0002] The waste heat recovery and utilization device for exhaust gas is a device for recovering the waste heat of exhaust gas. It is mainly used in various high-temperature exhaust gas discharge occasions. It can heat water with the high temperature of the exhaust gas to recover the waste heat. The recovered heat can reduce production costs and achieve more environmentally friendly production and use. The existing waste heat recovery and utilization device for exhaust gas generally uses multiple copper tubes for heat exchange when in use. However, too many copper tubes also lead to too many water pipes being installed, so the installation is cumbersome and inconvenient to use. Moreover, when the copper tube contacts the exhaust gas, the copper tube that contacts the exhaust gas first absorbs high heat, and the copper tube that contacts the exhaust gas later absorbs low heat. The copper tube cannot perform uniform contact heat exchange, and thus cannot fully recover and utilize the waste heat, reducing the effect of waste heat recovery.

[0003] For example, a Chinese utility model patent with authorization announcement number CN214950683 U discloses a waste heat recovery device for exhaust gas from a combustion furnace. By arranging a waste heat utilization component at the left end of the furnace body, the waste gas generated by the furnace body can be utilized for waste heat. By arranging a partitioning and guiding component located below the combustion chamber inside the furnace body, the burned object can be quickly discharged after the combustion of the combustible material is completed. However, the above-mentioned shortcomings are: the serpentine tube 502 that first contacts the exhaust gas absorbs a high amount of heat, while the serpentine tube 502 that later contacts the exhaust gas absorbs a low amount of heat. The serpentine tube 502 cannot perform uniform contact heat exchange, thereby reducing the effect of waste heat recovery. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an exhaust gas waste heat recovery and utilization device.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] A waste heat recovery and utilization device comprises a main box body, an exhaust hood is fixedly installed on one side of the main box body, an air intake hood is fixedly installed on the other side of the main box body, a rotating mounting plate is movably installed on the front end of the main box body, a plurality of heat exchange copper tubes are inserted into the interior of the rotating mounting plate, a rotating water guide plate is movably installed on the rear end of the main box body, a partition plate is integrally formed inside the rotating water guide plate, a rotating joint is fixedly installed on the rear end of the rotating water guide plate, a water pipe joint is fixedly installed on the rear end of the rotating joint, a belt mounting ring is fixedly installed on the outer side of the rotating joint at the rear end of the rotating water guide plate, a connecting mounting plate is fixedly installed on one side of the rotating water guide plate at the rear end of the main box body, a driving pulley is movably installed on the front end of the connecting mounting plate, and a transmission belt is sleeved on the outer sides of the belt mounting ring and the driving pulley.

[0007] Preferably, the exhaust hood and the air intake hood are both connected to the interior of the main box body, and an air pipe joint is fixedly installed on one end of the exhaust hood and the air intake hood away from the main box body.

[0008] Preferably, support legs are fixedly mounted on both sides of the lower end of the main box body, and the two support legs are arranged in parallel.

[0009] Preferably, the rotating mounting plate and the rotating water guide plate are both embedded in the main housing, the heat exchange copper tube passes through the rotating mounting plate and the interior of the main housing, and the end of the heat exchange copper tube away from the rotating mounting plate is inserted into the rotating water guide plate.

[0010] Preferably, the rotary joint is inserted into the rotary water guide plate, and the water pipe joint is connected with the interior of the rotary water guide plate through the rotary joint.

[0011] Preferably, the belt mounting ring and the driving pulley rotate synchronously via a transmission belt, and a spline hole is provided at the front end of the driving pulley.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When water is inletting and outletting, the partition plate divides the rotating water guide plate into two spaces, the water inlet end of the heat exchange copper tube and the water inlet of the water pipe joint are in the front inner layer of the rotating water guide plate, while the water outlet end of the heat exchange copper tube and the water outlet of the water pipe joint are in the rear inner layer of the rotating water guide plate. Therefore, the water inlet and the water outlet are integrated together, the water pipe installation is more convenient and simple, and the installation of too many water pipes is omitted, which is more convenient for the use of the utility model;

[0014] 2. When the heat exchange copper tube contacts the exhaust gas, it is rotated to contact the exhaust gas, so the exhaust gas contacts and exchanges heat with each heat exchange copper tube evenly, preventing the heat exchange copper tube on one side from failing to absorb heat, and recovering the waste heat more comprehensively, thereby improving the effect of waste heat recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0017] Figure 3 This is a sectional view of the main box in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the rotating water guide plate in the utility model.

[0019] In the figure: 1. Main box body; 2. Exhaust hood; 3. Intake hood; 4. Air pipe joint; 5. Support bracket; 6. Rotating mounting plate; 7. Heat exchange copper tube; 8. Rotating water guide plate; 9. Partition plate; 10. Rotating joint; 11. Water pipe joint; 12. Belt mounting ring; 13. Connecting mounting plate; 14. Driving pulley; 15. Transmission belt. DETAILED DESCRIPTION

[0020] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] like Figure 1-Figure 4 As shown, a waste heat recovery and utilization device for exhaust gas comprises a main box body 1, an exhaust hood 2 is fixedly installed on one side of the main box body 1, an air intake hood 3 is fixedly installed on the other side of the main box body 1, a rotating mounting disk 6 is movably installed at the front end of the main box body 1, a plurality of heat exchange copper tubes 7 are inserted into the interior of the rotating mounting disk 6, a rotating water guide plate 8 is movably installed at the rear end of the main box body 1, a partition plate 9 is integrally formed inside the rotating water guide plate 8, a rotating joint 10 is fixedly installed at the rear end of the rotating water guide plate 8, a water pipe joint 11 is fixedly installed at the rear end of the rotating water guide plate 8, a belt mounting ring 12 is fixedly installed on the outer side of the rotating joint 10 at the rear end of the rotating water guide plate 8, a connecting mounting plate 13 is fixedly installed on one side of the rotating water guide plate 8 at the rear end of the main box body 1, a driving pulley 14 is movably installed at the front end of the connecting mounting plate 13, and a transmission belt 15 is sleeved on the outer sides of the belt mounting ring 12 and the driving pulley 14.

[0023] In this embodiment, the exhaust hood 2 and the air intake hood 3 are both connected to the interior of the main box body 1, and the ends of the exhaust hood 2 and the air intake hood 3 away from the main box body 1 are fixedly installed with an air pipe joint 4, which serves the effect of installing the air pipe.

[0024] In this embodiment, support legs 5 are fixedly installed on both sides of the lower end of the main box body 1, and the two support legs 5 are arranged in parallel, and the support legs 5 play a supporting role.

[0025] In this embodiment, the rotating mounting plate 6 and the rotating water guide plate 8 are both embedded in the main box body 1, the heat exchange copper tube 7 passes through the rotating mounting plate 6 and through the interior of the main box body 1, and the end of the heat exchange copper tube 7 away from the rotating mounting plate 6 is inserted into the rotating water guide plate 8, and the rotating water guide plate 8 is used to transport water into the heat exchange copper tube 7.

[0026] In this embodiment, the rotary joint 10 is inserted into the rotary water guide plate 8, and the water pipe joint 11 is connected to the interior of the rotary water guide plate 8 through the rotary joint 10. The water pipe joint 11 has two interfaces, which respectively supply water to the rotary water guide plate 8 and drain water.

[0027] In this embodiment, the belt mounting ring 12 and the driving pulley 14 rotate synchronously through a transmission belt 15. A spline hole is provided at the front end of the driving pulley 14, and the driving pulley 14 is connected to a motor or a handle through the spline hole.

[0028] When the utility model is in use, the exhaust hood 2 and the air intake hood 3 are connected to the exhaust gas inlet pipe and the exhaust pipe through the air pipe joint 4, and the water pipe joint 11 is installed with the water inlet pipe and the water outlet pipe. The water enters the rotating water guide plate 8 through the water pipe joint 11 and the rotary joint 10, and then enters into the multiple heat exchange copper tubes 7. The exhaust gas enters the main box 1 through the air intake hood 3 and contacts the heat exchange copper tube 7, so the heat in the exhaust gas is transferred to the heat exchange copper tube 7, and then the water in the heat exchange copper tube 7 is heated. The heated water is discharged from the rotary joint 10 and the water pipe joint 11 through the rotating water guide plate 8 to extract the recovered heat, and this cycle is used to realize the waste heat recovery and utilization of the exhaust gas.

[0029] When water is flowing in and out, the partition plate 9 divides the rotating water guide plate 8 into two spaces, the water inlet end of the heat exchange copper tube 7 and the water inlet of the water pipe joint 11 are in the front inner layer of the rotating water guide plate 8, while the water outlet end of the heat exchange copper tube 7 and the water outlet of the water pipe joint 11 are in the inner inner layer of the rotating water guide plate 8, so that the water inlet and the water outlet are integrated together;

[0030] When the heat exchange copper tube 7 contacts the exhaust gas, the driving pulley 14 is rotated by an external motor or manually. The rotation of the driving pulley 14 drives the belt mounting ring 12 and the rotating water guide plate 8 to rotate through the transmission belt 15. When the rotating water guide plate 8 rotates, it also drives the connected heat exchange copper tube 7 and the rotating mounting plate 6 to rotate, so that the heat exchange copper tube 7 rotates and contacts the exhaust gas. Therefore, the exhaust gas is in uniform contact and heat exchange with each heat exchange copper tube 7, preventing the heat exchange copper tube 7 on one side from failing to absorb heat.

Claims

1. A waste gas waste heat recovery and utilization device, characterized in that: The invention comprises a main box body (1), an exhaust hood (2) is fixedly mounted on one side of the main box body (1), an air intake hood (3) is fixedly mounted on the other side of the main box body (1), a rotating mounting plate (6) is movably mounted on the front end of the main box body (1), a plurality of heat exchange copper tubes (7) are inserted into the interior of the rotating mounting plate (6), a rotating water guide plate (8) is movably mounted on the rear end of the main box body (1), a partition plate (9) is integrally formed inside the rotating water guide plate (8), and a rotating connection plate (9) is fixedly mounted on the rear end of the rotating water guide plate (8). The rotary joint (10) is provided with a water pipe joint (11) fixedly mounted at the rear end of the rotary joint (10); a belt mounting ring (12) is fixedly mounted on the rear end of the rotary water guide plate (8) and located outside the rotary joint (10); a connecting mounting plate (13) is fixedly mounted on the rear end of the main housing (1) and located on one side of the rotary water guide plate (8); a driving pulley (14) is movably mounted on the front end of the connecting mounting plate (13); and a transmission belt (15) is sleeved on the outer sides of the belt mounting ring (12) and the driving pulley (14).

2. The exhaust gas waste heat recovery and utilization device according to claim 1 is characterized in that: The exhaust hood (2) and the air intake hood (3) are both connected to the interior of the main box body (1), and an air pipe joint (4) is fixedly installed on one end of the exhaust hood (2) and the air intake hood (3) away from the main box body (1).

3. The exhaust gas waste heat recovery and utilization device according to claim 2 is characterized in that: Support legs (5) are fixedly mounted on both sides of the lower end of the main box body (1), and the two support legs (5) are arranged in parallel.

4. The exhaust gas waste heat recovery and utilization device according to claim 3 is characterized in that: The rotating mounting plate (6) and the rotating water guide plate (8) are both embedded in the main housing (1); the heat exchange copper tube (7) passes through the rotating mounting plate (6) and the interior of the main housing (1); and one end of the heat exchange copper tube (7) away from the rotating mounting plate (6) is inserted into the rotating water guide plate (8).

5. The exhaust gas waste heat recovery and utilization device according to claim 4 is characterized in that: The rotary joint (10) is inserted into the rotary water guide plate (8), and the water pipe joint (11) is connected to the interior of the rotary water guide plate (8) through the rotary joint (10).

6. The exhaust gas waste heat recovery device according to any one of claims 1 to 5, characterized in that: The belt mounting ring (12) and the driving pulley (14) rotate synchronously via a transmission belt (15), and a spline hole is provided at the front end of the driving pulley (14).

Images