Device for recovering heat of low-temperature flue gas

Abstract

The utility model discloses a device for recovering heat of low-temperature flue gas, which comprises a liquid storage tank, two sides of the liquid storage tank are sequentially provided with a gas inlet and a gas outlet, one end of the gas inlet and one end of the gas outlet extend into the liquid storage tank and are communicated with gas guide boxes, a plurality of heat recovery pipes are uniformly distributed between the two gas guide boxes, and the heat recovery pipes are communicated with the gas guide boxes. Air guide hoses are arranged between the two ends of the heat recovery pipe and the air guide box, and a transmission assembly for reciprocating motion of the heat recovery pipe is arranged in the liquid storage box. The flue gas heat recovery device is provided with the liquid storage tank, the water inlet, the supporting legs, the driving motor, the gas inlet, the water outlet, the gas outlet, the gas guide box, the threaded rod, the first limiting rod, the heat recovery pipe, the first limiting seat, the second limiting seat, the gas guide hose and the second limiting rod, heat in flue gas can be recovered, and the heat utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery devices, in particular to a device for recovering heat from low-temperature flue gas. Background Art

[0002] Flue gas is a mixture of gas and smoke, and is the main cause of air pollution in residential areas. The composition of flue gas is very complex, including water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons and nitrogen oxides, etc. The smoke includes fuel ash, coal particles, oil droplets and high-temperature cracking products. However, the existing flue gas recovery device for baking bag cannot recover the waste heat of flue gas during use, resulting in energy waste. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned problem and to propose a device for recovering heat from low-temperature flue gas.

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

[0005] A device for recovering heat from low-temperature flue gas comprises a liquid storage tank, with an air inlet and an air outlet arranged on both sides of the liquid storage tank in sequence, one end of the air inlet and the air outlet extending into the liquid storage tank and connected to an air guide box, a plurality of heat recovery pipes are evenly distributed between two of the air guide boxes, air guide hoses are arranged between the two ends of the heat recovery pipes and the air guide boxes, and a transmission assembly for reciprocating movement of the heat recovery pipe is arranged in the liquid storage tank.

[0006] Preferably, the transmission assembly includes a threaded rod and a first limit rod arranged between the inner walls of the liquid storage tank, a plurality of first limit seats are evenly distributed on the threaded rod, a plurality of second limit seats are evenly distributed on the first limit rod, the first limit seats and the second limit seats are both fixedly connected to the heat recovery pipe, and a drive motor is arranged on the outside of the liquid storage tank.

[0007] Preferably, the output end of the driving motor is fixedly connected to the threaded rod, the threaded rod passes through the first limit seat and is threadedly connected to the first limit seat, and the first limit rod passes through the second limit seat and is slidably connected to the second limit seat.

[0008] Preferably, a second limiting rod is arranged between the inner walls of the liquid storage tank, and the second limiting rod passes through a plurality of the first limiting seats and is slidably connected to the first limiting seats.

[0009] Preferably, the heat recovery pipe is corrugated.

[0010] Preferably, the bottom of the liquid storage tank is provided with supporting legs, and the side of the liquid storage tank is provided with a water inlet and a water outlet.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] The present application is provided with a liquid storage tank, a water inlet, a supporting leg, a driving motor, an air inlet, a water outlet, an air outlet, an air guide box, a threaded rod, a first limiting rod, a heat recovery pipe, a first limiting seat, a second limiting seat, an air guide hose and a second limiting rod structure. The present application can realize the recovery of heat in the flue gas and improve the heat utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a first viewing angle structure provided according to an embodiment of the utility model is shown;

[0014] Figure 2 A schematic diagram of a second viewing angle structure provided according to an embodiment of the utility model is shown;

[0015] Figure 3 A schematic diagram of the internal structure of a liquid storage tank provided according to an embodiment of the utility model is shown;

[0016] Figure 4 A schematic diagram of the structure of a transmission assembly provided according to an embodiment of the utility model is shown.

[0017] Legend:

[0018] 1. Liquid storage tank; 2. Water inlet; 3. Support leg; 4. Drive motor; 5. Air inlet; 6. Water outlet; 7. Air outlet; 8. Air guide box; 9. Threaded rod; 10. First limit rod; 11. Heat recovery pipe; 12. First limit seat; 13. Second limit seat; 14. Air guide hose; 15. Second limit rod. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 , the utility model provides a technical solution:

[0021] A device for recovering heat from low-temperature flue gas comprises a liquid storage tank 1, and air inlets 5 and air outlets 7 are sequentially arranged on both sides of the liquid storage tank 1, one end of the air inlet 5 and the air outlet 7 extends into the liquid storage tank 1 and is connected with an air guide box 8, a plurality of heat recovery pipes 11 are evenly distributed between the two air guide boxes 8, an air guide hose 14 is arranged between the two ends of the heat recovery pipe 11 and the air guide box 8, and a transmission assembly for reciprocating movement of the heat recovery pipe 11 is arranged in the liquid storage tank 1. The transmission assembly comprises a threaded rod 9 and a first limiting rod 10 arranged between the inner walls of the liquid storage tank 1, a plurality of first limiting seats 12 are evenly distributed on the threaded rod 9, a plurality of second limiting seats 13 are evenly distributed on the first limiting rod 10, the first limiting seat 12 and the second limiting seat 13 are both fixedly connected to the heat recovery pipe 11, and a driving motor 4 is arranged on the outside of the liquid storage tank 1. The output end of the driving motor 4 is fixedly connected to the threaded rod 9, the threaded rod 9 passes through the first limit seat 12 and is threadedly connected to the first limit seat 12, and the first limit rod 10 passes through the second limit seat 13 and is slidably connected to the second limit seat 13. A second limit rod 15 is arranged between the inner walls of the liquid storage tank 1, and the second limit rod 15 passes through a plurality of first limit seats 12 and is slidably connected to the first limit seats 12. The heat recovery pipe 11 is corrugated. A support leg 3 is arranged at the bottom of the liquid storage tank 1, and a water inlet 2 and a water outlet 6 are arranged on the side of the liquid storage tank 1.

[0022] Specifically, as shown in the figure, the transmission assembly includes a threaded rod 9 and a first limit rod 10 arranged between the inner walls of the liquid storage tank 1, a plurality of first limit seats 12 are evenly distributed on the threaded rod 9, a plurality of second limit seats 13 are evenly distributed on the first limit rod 10, the first limit seat 12 and the second limit seat 13 are both fixedly connected to the heat recovery pipe 11, a drive motor 4 is arranged on the outside of the liquid storage tank 1, the output end of the drive motor 4 is fixedly connected to the threaded rod 9, the threaded rod 9 passes through the first limit seat 12 and is threadedly connected to the first limit seat 12, the first limit rod 10 passes through the second limit seat 13 and is slidably connected to the second limit seat 13.

[0023] Specifically, as shown in the figure, a second limit rod 15 is arranged between the inner walls of the liquid storage tank 1. The second limit rod 15 passes through multiple first limit seats 12 and is slidably connected to the first limit seats 12. The second limit rod 15 can prevent the first limit seats 12 from deflecting, thereby preventing the heat recovery pipe 11 from deforming.

[0024] Specifically, as shown in the figure, the heat recovery pipe 11 is corrugated, and the corrugated heat recovery pipe 11 can increase the contact area with water, so that the water can absorb the gas in the flue gas. The bottom of the liquid storage tank 1 is provided with supporting legs 3, and the side of the liquid storage tank 1 is provided with a water inlet 2 and a water outlet 6.

[0025] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for recovering heat from low-temperature flue gas, comprising a liquid storage tank (1), characterized in that: An air inlet (5) and an air outlet (7) are sequentially arranged on both sides of the liquid storage tank (1); one end of the air inlet (5) and the air outlet (7) extend into the liquid storage tank (1) and are connected to an air guide box (8); a plurality of heat recovery pipes (11) are evenly distributed between the two air guide boxes (8); air guide hoses (14) are arranged between the two ends of the heat recovery pipe (11) and the air guide boxes (8); and a transmission assembly for reciprocating the heat recovery pipe (11) is arranged in the liquid storage tank (1).

2. The device for recovering heat from low-temperature flue gas according to claim 1, characterized in that: The transmission assembly comprises a threaded rod (9) and a first limiting rod (10) arranged between the inner walls of the liquid storage tank (1); a plurality of first limiting seats (12) are evenly distributed on the threaded rod (9); a plurality of second limiting seats (13) are evenly distributed on the first limiting rod (10); the first limiting seats (12) and the second limiting seats (13) are both fixedly connected to the heat recovery pipe (11); and a driving motor (4) is arranged on the outer side of the liquid storage tank (1).

3. The device for recovering heat from low-temperature flue gas according to claim 2, characterized in that: The output end of the driving motor (4) is fixedly connected to the threaded rod (9), the threaded rod (9) passes through the first limiting seat (12) and is threadedly connected to the first limiting seat (12), and the first limiting rod (10) passes through the second limiting seat (13) and is slidably connected to the second limiting seat (13).

4. The device for recovering heat from low-temperature flue gas according to claim 3, characterized in that: A second limiting rod (15) is arranged between the inner walls of the liquid storage box (1), and the second limiting rod (15) passes through a plurality of the first limiting seats (12) and is slidably connected to the first limiting seats (12).

5. A device for recovering heat from low-temperature flue gas according to any one of claims 1 to 4, characterized in that: The heat recovery pipe (11) is corrugated.

6. The device for recovering heat from low-temperature flue gas according to claim 5, characterized in that: The bottom of the liquid storage tank (1) is provided with supporting legs (3), and the side of the liquid storage tank (1) is provided with a water inlet (2) and a water outlet (6).

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