CN215408821U

CN215408821U - Waste heat utilization device of biogas generator set

Info

Publication number: CN215408821U
Application number: CN202121738613.7U
Authority: CN
Inventors: 江孝为; 潘恒明
Original assignee: SHENZHEN VERYPOWER NEW ENERGY CO Ltd
Current assignee: SHENZHEN VERYPOWER NEW ENERGY CO Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-04
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to the technical field of tail gas collection and utilization of biogas generators, in particular to a waste heat utilization device of a biogas generator set, which comprises a shell, an impeller, a waterproof box, a T-shaped rod and a water pressing box, wherein the shell is provided with a water inlet pipe and a water outlet pipe; a partition plate is arranged in the shell, a filter is arranged on the side surface of the shell, a coiled pipe is arranged in the shell, and the filter is respectively connected with the flue gas pipeline and the coiled pipe; the impeller is arranged inside the coiled pipe, the waterproof box is rotatably provided with a rotating shaft B inside, and the rotating shaft B is in transmission connection with the rotating shaft A; a rotating shaft C is rotatably arranged in the waterproof box and is in transmission connection with the rotating shaft B; a fixed plate is arranged on the rotating shaft C, the T-shaped rod is arranged in the shell in a sliding mode, and the fixed column is connected with the transverse end of the T-shaped rod in a rotating and sliding mode; the vertical end of the T-shaped rod is inserted into the shell downwards, and a movable plate is arranged at the bottom of the T-shaped rod; the pressure water tank is arranged in the shell, and the movable plate is inserted into the pressure water tank in a sliding mode. The utility model enables warm water to form circulation in the shell of the methane tank in a mechanical transmission mode, thereby saving energy and protecting environment.

Description

Waste heat utilization device of biogas generator set

Technical Field

The utility model relates to the technical field of tail gas collection and utilization of biogas generators, in particular to a waste heat utilization device of a biogas generator set.

Background

The methane combustion power generation is a methane utilization technology which appears along with the continuous development of large-scale methane tank construction and methane comprehensive utilization, and the methane generated by anaerobic fermentation treatment is used on an engine and is provided with a comprehensive power generation device to generate electric energy and heat energy. The biogas power generation has the characteristics of efficiency creation, energy conservation, safety, environmental protection and the like, and is a distributed energy source with wide distribution and low price.

The existing biogas generator can generate smoke in the combustion process, the smoke contains a large amount of heat, and the heat is discharged along with the smoke to cause waste of energy. The existing flue gas heat recovery design structure usually utilizes flue gas to heat water, and then utilizes a liquid pump to inject warm water into a shell circulation water tank of a methane tank, so that certain temperature is provided for raw materials in the methane tank, and further the generation of methane is accelerated.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background art, the utility model provides a waste heat utilization device of a biogas generator set, which can complete warm water circulation in a cavity of a tank body of a biogas tank without consuming electric energy, and is energy-saving and environment-friendly; in addition, the utility model can also detect the temperature of the flue gas finally discharged into the air, thereby adjusting the circulation time of the flue gas in the coiled pipe in time.

The technical scheme of the utility model is as follows: a waste heat utilization device of a biogas generator set comprises a shell, an impeller, a waterproof box, a T-shaped rod and a water pressing box;

a partition board is arranged in the shell, the partition board divides the interior of the shell into a heating box and a water storage tank, the heating box is positioned above the water storage tank, a water return pipe is arranged on the shell, and the water return pipe is inserted into the heating box; the side surface of the shell is provided with a filter, a coiled pipe is arranged in the shell, the input end of the filter is connected with the flue gas pipeline, and the output end of the filter is connected with one end of the coiled pipe;

the impeller is arranged in the coiled pipe, a rotating shaft A is arranged on the impeller, and the rotating shaft A is rotationally connected with the shell of the coiled pipe; the waterproof box is arranged on the shell, and the other end of the rotating shaft A penetrates through the shell to be inserted into the waterproof box; a rotating shaft B is rotatably arranged in the waterproof box, conical gears A are arranged on the rotating shaft B and the rotating shaft A, and the two conical gears A are vertically meshed; a rotating shaft C is rotatably arranged in the waterproof box, conical gears B are arranged on the rotating shaft C and the rotating shaft B, and the two conical gears B are vertically meshed; a fixed plate is arranged on the rotating shaft C, and a fixed column is arranged on the fixed plate;

the T-shaped rod is arranged in the shell in a sliding mode, the transverse end of the T-shaped rod is located in the waterproof box, and the fixing column is connected with the transverse end of the T-shaped rod in a rotating and sliding mode; the vertical end of the T-shaped rod is inserted into the shell downwards, and two movable plates which are matched with each other are rotatably arranged at the bottom of the vertical end of the T-shaped rod; the water pressing tank is arranged in the shell, the output end of the water pressing tank is positioned above the partition plate, the movable plate is inserted into the water pressing tank in a sliding mode, and the output end of the water pressing tank is further provided with a water outlet pipe; a lower water opening communicated with the heating box and the water storage tank is arranged on the partition plate, and a temperature control valve is arranged in the lower water opening; the shell is also provided with a drain pipe which is inserted into the water storage tank.

Preferably, a plurality of baffles are symmetrically arranged on the inner wall of the pipeline of the coiled pipe, the baffles are rotationally connected with the inner wall of the coiled pipe, and the baffles are rotationally connected through a connecting rod A; two baffles close to the exhaust port are both provided with sliding blocks in a sliding manner, and the sliding blocks are rotatably provided with connecting rods B; the screen plate is arranged in the coiled pipe in a sliding mode, the other end of the connecting rod B is fixedly connected with the screen plate, the hydraulic cylinder is further arranged in the coiled pipe, and the output end of the hydraulic cylinder is connected with the screen plate.

Preferably, a plurality of fixing blocks are fixedly arranged inside the coiled pipe and located between the baffles on the two sides.

Preferably, the inner wall of the shell is provided with an insulating layer.

Preferably, the device further comprises a controller; the inner side of the exhaust port of the coiled pipe is provided with a temperature sensor which is in communication connection with a controller, and the controller is in control connection with the hydraulic cylinder.

Preferably, the inboard spout that sets up of the horizontal end of T type pole, the fixed column inserts inside the spout perpendicularly.

Preferably, the shell is provided with a water adding pipe, the lower end of the water adding pipe is inserted into the heating box, and the water adding pipe is provided with a valve.

Preferably, the shell is provided with a pressure release valve, and the two pressure release valves are respectively communicated with the heating box and the water storage tank.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

by arranging the filter, the high-temperature flue gas entering the serpentine pipe is filtered in advance by the filter, solid impurities mixed in the high-temperature flue gas are filtered, and the high-temperature flue gas is prevented from scaling inside the serpentine pipe after entering the serpentine pipe; through the arrangement of the T-shaped rod and the movable plates, the two movable plates are turned downwards in the process of moving the T-shaped rod upwards, so that warm water in the heating box automatically enters the water pressing box, and when the T-shaped rod moves downwards, the movable plates automatically open and automatically press the warm water in the water pressing box into the water outlet pipe; the time for the smoke to circulate in the serpentine pipe can be prolonged by arranging a matching structure of the baffle and the fixed block and adjusting the gap between the baffle and the fixed block; by arranging the temperature control valve, when the temperature of water in the heating box reaches a certain value, the temperature control valve is automatically opened, hot water enters the water storage box through the water outlet, and the hot water can be used for daily life of a family; meanwhile, the utility model has the advantages of stable structure, simple installation and disassembly and high practicability.

Drawings

Fig. 1 is a schematic structural diagram of a waste heat utilization device of a biogas generator set provided by the utility model.

Fig. 2 is a schematic diagram of the internal structure of a waterproof box in the waste heat utilization device of the biogas generator set.

Fig. 3 is an enlarged view of a part a of the waste heat utilization device of the biogas generator set provided by the utility model.

Reference numerals: 1. a housing; 101. a partition plate; 2. a heating box; 3. a water storage tank; 4. a filter; 5. a flue gas duct; 6. a serpentine tube; 7. a water return pipe; 8. an impeller; 9. a rotating shaft A; 10. a waterproof box; 11. a rotating shaft B; 12. a bevel gear A; 13. a rotating shaft C; 14. a bevel gear B; 15. a fixing plate; 16. fixing a column; 17. a T-shaped rod; 18. pressing the water tank; 19. a movable plate; 20. a water outlet pipe; 21. a baffle plate; 22. a connecting rod A; 23. a fixed block; 24. a slider; 25. a connecting rod B; 26. a screen plate; 27. a hydraulic cylinder; 28. a temperature control valve; 29. a drain pipe; 30. and (4) adding a water pipe.

Detailed Description

Example one

As shown in fig. 1-3, the waste heat utilization device for the biogas generator set provided by the utility model comprises a shell 1, an impeller 8, a waterproof box 10, a T-shaped rod 17 and a pressurized water tank 18;

a partition plate 101 is arranged in the shell 1, the partition plate 101 divides the interior of the shell 1 into a heating box 2 and a water storage box 3, the heating box 2 is positioned above the water storage box 3, a water return pipe 7 is arranged on the shell 1, and the water return pipe 7 is inserted into the heating box 2; a filter 4 is arranged on the side surface of the shell 1, a coiled pipe 6 is arranged in the shell 1, the input end of the filter 4 is connected with a flue gas pipeline 5, and the output end of the filter 4 is connected with one end of the coiled pipe 6;

the impeller 8 is arranged inside the coiled pipe 6, a rotating shaft A9 is arranged on the impeller 8, and the rotating shaft A9 is rotationally connected with the shell of the coiled pipe 6; the waterproof box 10 is arranged on the shell 1, and the other end of the rotating shaft A9 penetrates through the shell 1 and is inserted into the waterproof box 10; a rotating shaft B11 is rotatably arranged in the waterproof box 10, conical gears A12 are arranged on the rotating shaft B11 and the rotating shaft A9, and the two conical gears A12 are vertically meshed; a rotating shaft C13 is rotatably arranged in the waterproof box 10, a conical gear B14 is arranged on each of the rotating shaft C13 and the rotating shaft B11, and the two conical gears B14 are vertically meshed; a fixed plate 15 is arranged on the rotating shaft C13, and a fixed column 16 is arranged on the fixed plate 15;

the T-shaped rod 17 is arranged in the shell 1 in a sliding mode, the transverse end of the T-shaped rod 17 is located inside the waterproof box 10, and the fixing column 16 is connected with the transverse end of the T-shaped rod 17 in a rotating mode in a sliding mode; the vertical end of the T-shaped rod 17 is inserted into the shell 1 downwards, and two movable plates 19 which are matched with each other are rotatably arranged at the bottom of the vertical end of the T-shaped rod 17; the pressurized water tank 18 is arranged in the shell 1, the output end of the pressurized water tank 18 is positioned above the partition plate 101, the movable plate 19 is inserted into the pressurized water tank 18 in a sliding manner, and the output end of the pressurized water tank 18 is also provided with a water outlet pipe 20; a lower water opening for communicating the heating box 2 with the water storage box 3 is arranged on the partition plate 101, and a temperature control valve 28 is arranged in the lower water opening; the housing 1 is further provided with a drain pipe 29, and the drain pipe 29 is inserted into the interior of the water storage tank 3.

In the utility model, a flue gas pipeline 5 of a biogas generator is connected with a filter 4, a water return pipe 7 is connected with the output end of a constant temperature box in a biogas tank, and a water outlet pipe 20 is connected with the input end of the constant temperature box in the biogas tank; when the biogas generator is used for combustion and power generation, high-temperature flue gas enters the filter 4 through the flue gas pipeline 5, impurities contained in the flue gas are removed under the filtering of the filter 4, and the high-temperature flue gas enters the inside of the coiled pipe 6;

when high-temperature flue gas flows through the coiled pipe 6, the impeller 8 is driven to rotate, the impeller drives the rotating shaft A9, the rotating shaft B11 and the rotating shaft C13 to synchronously rotate, at the moment, a crankshaft structure formed by the fixed plate 15 and the fixed column drives the T-shaped rod 17 to move, the T-shaped rod 17 slides up and down to drive the movable plate 19 to slide up and down, the movable plate 19 turns downwards in the process that the T-shaped rod 17 moves upwards, warm water in the heating box 2 automatically enters the pressure water box 18, when the T-shaped rod 17 moves downwards, the movable plate 19 automatically opens and automatically presses warm water in the pressure water box 18 into the water outlet pipe 20, the warm water is pressed into the constant temperature box in the methane tank along the water outlet pipe 20, the heat of the warm water heats the interior of the methane tank to accelerate fermentation of raw materials in the methane tank, and the warm water flows back into the heating box 2 again through the water return pipe 7;

when the temperature of water in the heating box 2 is too high, the temperature control valve 28 is automatically opened, hot water enters the water storage box 3 along the drain port, meanwhile, cold water is added into the water adding pipe 30 and the heating box 2, when the temperature of the water in the heating box 2 is reduced to a certain value, water adding is stopped, and meanwhile, the temperature control valve 28 is automatically closed.

Example two

As shown in fig. 1, compared with the first embodiment, the waste heat utilization device of the biogas generator set provided by the present invention further includes a baffle 21 and a fixing block 23; a plurality of baffles 21 are symmetrically arranged on the inner wall of the pipe of the coiled pipe 6, the baffles 21 are rotationally connected with the inner wall of the coiled pipe 6, and the baffles 21 are rotationally connected through a connecting rod A22; the two baffles 21 close to the exhaust port are both provided with a sliding block 24 in a sliding way, and the sliding block 24 is provided with a connecting rod B25 in a rotating way; the screen plate 26 is arranged in the coiled pipe 6 in a sliding mode, the other end of the connecting rod B25 is fixedly connected with the screen plate 26, the hydraulic cylinder 27 is further arranged in the coiled pipe 6, and the output end of the hydraulic cylinder 27 is connected with the screen plate 26;

a plurality of fixing blocks 23 are fixedly arranged inside the coiled pipe 6, and the fixing blocks 23 are positioned between the baffle plates 21 on the two sides.

In this embodiment, the hydraulic cylinder 27 pushes the mesh plate 26 to slide, so that the baffles 21 on both sides rotate, the gap between the baffles 21 on both sides is gradually reduced, and the circulation time of the flue gas in the serpentine pipe 6 is correspondingly prolonged, so that the heat exchange time between the flue gas and the water in the heating tank is prolonged.

EXAMPLE III

As shown in fig. 2 and 3, compared with the first embodiment, the waste heat utilization device of the biogas generator set provided by the utility model further comprises a controller; the inner side of the exhaust port of the coiled pipe 6 is provided with a temperature sensor which is in communication connection with a controller, and the controller is in control connection with a hydraulic cylinder 27.

In this embodiment, the temperature of the flue gas at the exhaust port of the serpentine tube 6 is detected by the temperature sensor, and when the temperature of the flue gas discharged from the serpentine tube 6 is high, the controller controls the hydraulic cylinder 27 to extend, so that the gap between the baffles 21 on both sides is further reduced, and the time for the flue gas to flow through the interior of the serpentine tube is further prolonged.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The waste heat utilization device of the biogas generator set is characterized by comprising a shell (1), an impeller (8), a waterproof box (10), a T-shaped rod (17) and a water pressing box (18);

a partition plate (101) is arranged in the shell (1), the partition plate (101) divides the interior of the shell (1) into a heating box (2) and a water storage box (3), the heating box (2) is positioned above the water storage box (3), a water return pipe (7) is arranged on the shell (1), and the water return pipe (7) is inserted into the heating box (2); a filter (4) is arranged on the side surface of the shell (1), a coiled pipe (6) is arranged in the shell (1), the input end of the filter (4) is connected with a flue gas pipeline (5), and the output end of the filter (4) is connected with one end of the coiled pipe (6);

the impeller (8) is arranged inside the coiled pipe (6), a rotating shaft A (9) is arranged on the impeller (8), and the rotating shaft A (9) is rotationally connected with the shell of the coiled pipe (6); the waterproof box (10) is arranged on the shell (1), and the other end of the rotating shaft A (9) penetrates through the shell (1) and is inserted into the waterproof box (10); a rotating shaft B (11) is rotatably arranged in the waterproof box (10), conical gears A (12) are arranged on the rotating shaft B (11) and the rotating shaft A (9), and the two conical gears A (12) are vertically meshed; a rotating shaft C (13) is rotatably arranged in the waterproof box (10), conical gears B (14) are arranged on the rotating shaft C (13) and the rotating shaft B (11), and the two conical gears B (14) are vertically meshed; a fixed plate (15) is arranged on the rotating shaft C (13), and a fixed column (16) is arranged on the fixed plate (15);

the T-shaped rod (17) is arranged in the shell (1) in a sliding mode, the transverse end of the T-shaped rod (17) is located inside the waterproof box (10), and the fixing column (16) is connected with the transverse end of the T-shaped rod (17) in a rotating mode in a sliding mode; the vertical end of the T-shaped rod (17) is inserted into the shell (1) downwards, and two movable plates (19) which are matched with each other are rotatably arranged at the bottom of the vertical end of the T-shaped rod (17); the water pressing tank (18) is arranged in the shell (1), the output end of the water pressing tank (18) is positioned above the partition plate (101), the movable plate (19) is inserted into the water pressing tank (18) in a sliding manner, and the output end of the water pressing tank (18) is also provided with a water outlet pipe (20); a lower water gap communicated with the heating box (2) and the water storage box (3) is arranged on the partition plate (101), and a temperature control valve (28) is arranged in the lower water gap; the shell (1) is also provided with a drain pipe (29), and the drain pipe (29) is inserted into the water storage tank (3).

2. The waste heat utilization device of the biogas generator set according to claim 1, wherein a plurality of baffles (21) are symmetrically arranged on the inner wall of the pipe of the coiled pipe (6), the baffles (21) are rotatably connected with the inner wall of the coiled pipe (6), and the baffles (21) are rotatably connected through a connecting rod A (22); two baffles (21) close to the exhaust port are both provided with a sliding block (24) in a sliding way, and the sliding block (24) is provided with a connecting rod B (25) in a rotating way; the inside slip of coiled pipe (6) sets up otter board (26), and the other end and otter board (26) fixed connection of connecting rod B (25), and the inside of coiled pipe (6) still is equipped with pneumatic cylinder (27), and the output and the otter board (26) of pneumatic cylinder (27) are connected.

3. The waste heat utilization device of the biogas generator set according to claim 2, wherein a plurality of fixing blocks (23) are fixedly arranged inside the serpentine pipe (6), and the fixing blocks (23) are positioned between the baffles (21) at the two sides.

4. The waste heat utilization device of the biogas generator set according to claim 1, characterized in that the inner wall of the shell (1) is provided with an insulating layer.

5. The waste heat utilization device of the biogas generator set according to claim 1, further comprising a controller; the inner side of the exhaust port of the coiled pipe (6) is provided with a temperature sensor which is in communication connection with a controller, and the controller is in control connection with a hydraulic cylinder (27).

6. The waste heat utilization device of the biogas generator set according to claim 1, wherein a sliding groove is arranged on the inner side of the transverse end of the T-shaped rod (17), and the fixing column (16) is vertically inserted into the sliding groove.

7. The waste heat utilization device of the biogas generator set according to claim 1, wherein the shell (1) is provided with a water feeding pipe (30), the lower end of the water feeding pipe (30) is inserted into the heating box (2), and the water feeding pipe (30) is provided with a valve.

8. The waste heat utilization device of the biogas generator set according to claim 1, wherein the shell (1) is provided with pressure relief valves, and the two pressure relief valves are respectively communicated with the heating tank (2) and the water storage tank (3).