Waste heat utilization device of biogas generator set
By designing a waste heat utilization device of biogas generator set with a rotating mechanism, the problem of uneven heat exchange in the prior art is solved, uniform heating of water and effective recovery of heat are achieved, and easy to use and high practicality.
Patent Information
- Application Number
- CN202420240823.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-02-01
AI Technical Summary
When the waste heat utilization device of existing biogas generator sets is heated, the heat exchange effect is uneven, resulting in poor heating effect and inconvenient use.
A waste heat utilization device for biogas generator sets including a base plate, a heat exchange cylinder, an intake pipe, an exhaust pipe, a heat exchange mechanism, a rotating mechanism and a support mechanism is designed. The rotating mechanism drives the heat exchange mechanism to rotate, promotes the flow of water and heat exchange, and achieves uniform heating of water.
It achieves uniform heating of water, reduces heat loss, is easy to use and has high practicality.
Smart Images
Figure CN222460391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat energy recovery, in particular to a waste heat utilization device of a biogas generator set. Background Art
[0002] A biogas generator is a device that uses the heat energy generated by the combustion of biogas to heat water to produce water vapor, and then generates electricity through water vapor. A large amount of high-temperature flue gas will be generated during the combustion of biogas. These high-temperature flue gases will be directly discharged into the exhaust gas treatment device, which will not only waste a lot of heat energy, but also easily damage the exhaust gas treatment device. Therefore, a waste heat recovery device is required to recover the waste heat of the flue gas generated during biogas power generation before discharging the flue gas to the outside. In the prior art, the utility model patent with patent application number 202121738613. discloses a waste heat utilization device for a biogas generator set, which mainly includes a water tank and a pipe, and the middle part of the pipe is fixedly installed in the water tank. When the biogas generator is working, the flue gas it produces is discharged to the external waste gas treatment through the pipe. When the flue gas passes through the pipe, the flue gas exchanges heat with the water in the water tank through the outer wall of the pipe, so that the flue gas temperature is reduced and the water in the water tank is heated at the same time. It is found during use that since the pipe is fixedly installed in the water tank and the water in the water tank has poor fluidity, the pipe can only exchange heat with the water close to the pipe in the water tank, and cannot evenly heat the water in various parts of the water tank. The heating effect is not good and it is inconvenient to use. Therefore, a waste heat utilization device that can evenly heat water is needed. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a waste heat utilization device for a biogas generator set which not only reduces heat loss but also can heat water evenly and is easy to use and highly practical.
[0004] The utility model discloses a waste heat utilization device for a biogas power generation unit, comprising a base plate and a heat exchange cylinder, wherein a chamber is arranged in the heat exchange cylinder; the utility model also comprises an air intake pipe, an exhaust pipe, a heat exchange mechanism, a rotating mechanism and a supporting mechanism, wherein the heat exchange cylinder is fixedly mounted on the base plate through the supporting mechanism, the air intake pipe is rotatably mounted on the heat exchange cylinder, the output end of the air intake pipe is connected with the heat exchange mechanism, the output end of the heat exchange mechanism is connected with the exhaust pipe, the exhaust pipe is rotatably mounted on the heat exchange cylinder, the exhaust pipe is coaxial with the heat exchange cylinder, the heat exchange mechanism is located in the chamber of the heat exchange cylinder, the heat exchange mechanism has a heat exchange function, and the rotating mechanism is used to rotate the air intake pipe; the high-temperature smoke generated when the biogas power generation unit generates electricity is The air is passed into the air inlet pipe, and then the flue gas enters the heat exchange mechanism through the air inlet pipe, and then the rotating mechanism is turned on to drive the heat exchange mechanism to rotate through the air inlet pipe, and then the high-temperature flue gas exchanges heat with the water in the heat exchange tube chamber through the heat exchange mechanism to heat the water, and then the flue gas can be discharged through the exhaust pipe; when the flue gas heats the water, the rotation of the heat exchange mechanism by the rotating mechanism promotes the flow of water in the heat exchange tube chamber, which promotes the movement between the water and the heat exchange mechanism, so that the heat exchange mechanism can evenly heat the water in the heat exchange tube chamber, the heating is more uniform, it is easy to use, and it is highly practical.
[0005] Preferably, the supporting mechanism includes a bracket, a supporting tube, a support rod, an air outlet pipe, a water inlet pipe and a drain pipe, the supporting tube is fixedly mounted on the bottom plate by the bracket, a cavity is arranged in the supporting tube, the heat exchange tube is fixedly mounted in the cavity of the supporting tube by the support rod, the air inlet pipe is rotatably connected to the supporting tube, the output end of the exhaust pipe is located in the cavity of the supporting tube, the output end of the exhaust pipe is located on the outside of the heat exchange tube, the input end of the air outlet pipe is connected with the cavity of the supporting tube, the water inlet pipe and the drain pipe are respectively mounted on the upper and lower parts of the heat exchange tube, and valves are arranged on the water inlet pipe and the drain pipe; when the water in the chamber of the heat exchange tube is heated, the smoke is discharged through the air inlet pipe, the heat exchange mechanism and the exhaust pipe, the smoke enters the cavity of the supporting tube, and then the smoke is discharged through the air outlet pipe. Since the cavity of the supporting tube is filled with smoke, the thermal insulation effect of the heat exchange tube is improved by the smoke, the heat loss on the heat exchange tube is reduced, and the thermal insulation effect of the heat exchange tube is improved.
[0006] Preferably, the heat exchange mechanism includes a heat exchange tube and a branch tube, the input end of the heat exchange tube is connected to the air intake pipe, the output end of the heat exchange tube is connected to the exhaust pipe, the branch tube is fixedly installed on the heat exchange tube, and the left and right ends of the branch tube are connected to the heat exchange tube; the flue gas enters the heat exchange tube and the branch tube through the air intake pipe, and then the flue gas is discharged into the exhaust pipe through the heat exchange tube, and the flue gas exchanges heat with the water in the heat exchange cylinder through the side walls of the heat exchange tube and the branch tube. At the same time, the air intake pipe drives the heat exchange tube and the branch tube to rotate, which promotes the movement of water in the heat exchange cylinder chamber, improves the fluidity of the water, and can heat the water evenly.
[0007] Preferably, the rotating mechanism includes a support plate, a rotating joint, an air pipe and a driving mechanism. The support plate is fixedly mounted on the bottom plate, the rotating joint is fixedly mounted on the support plate, the output end of the air pipe is connected with the rotating joint, the air intake pipe is rotatably mounted on the air intake pipe, the input end of the air intake pipe is connected with the rotating joint, and the driving mechanism is used to rotate the air intake pipe; the flue gas generated during biogas power generation is passed into the air pipe, and then the flue gas enters the heat exchange pipe and the branch pipe through the rotating joint and the air intake pipe in turn, and then the flue gas exchanges heat with the water in the heat exchange cylinder chamber through the side walls of the heat exchange pipe and the branch pipe, and at the same time, the air intake pipe is rotated by the driving mechanism, and the air intake pipe drives the heat exchange pipe and the branch pipe to rotate, which is convenient for recovering heat in the flue gas.
[0008] Preferably, the driving mechanism includes sprocket A, chain, sprocket B, driving shaft and driving motor, sprocket A is fixedly mounted on the intake pipe, sprocket A is transmission connected to sprocket B through the chain, sprocket B is fixedly mounted on the driving shaft, the driving shaft is rotatably mounted on the support plate, and the input end of the driving shaft is connected to the driving motor; when the intake pipe is rotated, the driving motor is turned on, the driving motor drives the driving shaft to rotate, and the driving shaft drives the sprocket A to rotate through the sprocket B, thereby rotating the intake pipe; the rotation of the intake pipe is convenient.
[0009] Preferably, the outer layer of the support tube is provided with a thermal insulation coating; through the above arrangement, the thermal insulation effect of the support tube is improved.
[0010] Preferably, it also includes a temperature meter, which is fixedly mounted on the support tube; through the above arrangement, it is convenient to monitor the smoke temperature in the cavity of the support tube, thereby improving convenience.
[0011] Compared with the prior art, the utility model has the beneficial effects of not only reducing heat loss but also being able to heat water evenly, being easy to use and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the structure of heat exchange tubes, branch pipes and exhaust pipes;
[0014] Figure 3 It is a main structural schematic diagram of the utility model;
[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the support tube, support rod and heat exchange tube;
[0016] Figure 5 It is a cross-sectional structural schematic diagram of the utility model;
[0017] Markings in the attached figure: 1. bottom plate; 2. heat exchange tube; 3. air inlet pipe; 4. exhaust pipe; 5. bracket; 6. support tube; 7. support rod; 8. air outlet pipe; 9. water inlet pipe; 10. drain pipe; 11. heat exchange tube; 12. branch pipe; 13. support plate; 14. rotary joint; 15. air supply pipe; 16. sprocket A; 17. chain; 18. sprocket B; 19. drive shaft; 20. drive motor; 21. thermometer. DETAILED DESCRIPTION
[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example
[0019] like Figures 1 to 5 The waste heat utilization device of a biogas generator set of the utility model comprises a bottom plate 1, a heat exchange cylinder 2, an air intake pipe 3, an exhaust pipe 4, a heat exchange mechanism, a rotating mechanism and a supporting mechanism. A chamber is arranged in the heat exchange cylinder 2. The heat exchange cylinder 2 is fixedly mounted on the bottom plate 1 through a supporting mechanism. The air intake pipe 3 is rotatably mounted on the heat exchange cylinder 2. The output end of the air intake pipe 3 is communicated with the heat exchange mechanism. The output end of the heat exchange mechanism is communicated with the exhaust pipe 4. The exhaust pipe 4 is rotatably mounted on the heat exchange cylinder 2. The exhaust pipe 4 is coaxial with the heat exchange cylinder 2. The heat exchange mechanism is located in the chamber of the heat exchange cylinder 2. The heat exchange mechanism has a heat exchange function. The rotating mechanism is used to rotate the air intake pipe 3; the heat generated when the biogas generator set generates electricity is The high-temperature flue gas is introduced into the air intake pipe 3, and then the flue gas enters the heat exchange mechanism through the air intake pipe 3. Then the rotating mechanism is turned on to drive the heat exchange mechanism to rotate through the air intake pipe 3. Then the high-temperature flue gas exchanges heat with the water in the chamber of the heat exchange tube 2 through the heat exchange mechanism to heat up the water, and then the flue gas is discharged through the exhaust pipe 4. When the flue gas heats the water, the rotation of the heat exchange mechanism by the rotating mechanism promotes the flow of water in the chamber of the heat exchange tube 2, and promotes the movement between the water and the heat exchange mechanism, so that the heat exchange mechanism can evenly heat the water in the chamber of the heat exchange tube 2, and the heating is more uniform, easy to use, and highly practical.
[0020] like Figure 1 , Figure 4 and Figure 5The supporting mechanism includes a bracket 5, a supporting tube 6, a support rod 7, an air outlet pipe 8, a water inlet pipe 9 and a drain pipe 10. The outer layer of the supporting tube 6 is provided with a thermal insulation coating. The supporting tube 6 is fixedly mounted on the bottom plate 1 through the bracket 5. A cavity is provided in the supporting tube 6. The heat exchange tube 2 is fixedly mounted in the cavity of the supporting tube 6 through the support rod 7. The air inlet pipe 3 is rotatably connected to the supporting tube 6. The output end of the exhaust pipe 4 is located in the cavity of the supporting tube 6. The output end of the exhaust pipe 4 is located on the outside of the heat exchange tube 2. The input end of the air outlet pipe 8 is connected to the cavity of the supporting tube 6. The water inlet pipe 9 and the drain pipe 10 are respectively installed at the upper and lower parts of the heat exchange tube 2, and valves are arranged on the water inlet pipe 9 and the drain pipe 10; when the water in the chamber of the heat exchange tube 2 is heated, the smoke is discharged through the air inlet pipe 3, the heat exchange mechanism and the exhaust pipe 4, and then the smoke enters the cavity of the support tube 6, and then the smoke is discharged through the air outlet pipe 8. Since the cavity of the support tube 6 is filled with smoke, the heat preservation effect of the heat exchange tube 2 is improved by the smoke, the heat loss of the heat exchange tube 2 is reduced, and the heat preservation effect of the heat exchange tube 2 is improved.
[0021] like Figure 2 The heat exchange mechanism includes a heat exchange tube 11 and a branch tube 12. The input end of the heat exchange tube 11 is connected to the air intake pipe 3, and the output end of the heat exchange tube 11 is connected to the exhaust pipe 4. The branch tube 12 is fixedly installed on the heat exchange tube 11, and the left and right ends of the branch tube 12 are both connected to the heat exchange tube 11; the flue gas enters the heat exchange tube 11 and the branch tube 12 through the air intake pipe 3, and then the flue gas is discharged into the exhaust pipe 4 through the heat exchange tube 11. The flue gas exchanges heat with the water in the heat exchange tube 2 through the side walls of the heat exchange tube 11 and the branch tube 12. At the same time, the air intake pipe 3 drives the heat exchange tube 11 and the branch tube 12 to rotate, which promotes the movement of water in the chamber of the heat exchange tube 2, improves the fluidity of the water, and can heat the water evenly.
[0022] like Figure 2 and Figure 3 The rotating mechanism includes a support plate 13, a rotating joint 14, an air pipe 15 and a driving mechanism. The support plate 13 is fixedly mounted on the bottom plate 1, the rotating joint 14 is fixedly mounted on the support plate 13, the output end of the air pipe 15 is connected with the rotating joint 14, the air inlet pipe 3 is rotatably mounted on the air inlet pipe 3, the input end of the air inlet pipe 3 is connected with the rotating joint 14, and the driving mechanism is used to rotate the air inlet pipe 3; the flue gas generated during biogas power generation is introduced into the air pipe 15, and then the flue gas enters the heat exchange pipe 11 and the branch pipe 12 through the rotating joint 14 and the air inlet pipe 3 in turn, and then the flue gas exchanges heat with the water in the chamber of the heat exchange cylinder 2 through the side walls of the heat exchange pipe 11 and the branch pipe 12, and at the same time, the air inlet pipe 3 is rotated by the driving mechanism, and the air inlet pipe 3 drives the heat exchange pipe 11 and the branch pipe 12 to rotate, which facilitates the recovery of heat in the flue gas.
[0023] like Figure 3The driving mechanism includes a sprocket A16, a chain 17, a sprocket B18, a driving shaft 19 and a driving motor 20. The sprocket A16 is fixedly mounted on the intake pipe 3. The sprocket A16 is transmission-connected to the sprocket B18 through the chain 17. The sprocket B18 is fixedly mounted on the driving shaft 19. The driving shaft 19 is rotatably mounted on the support plate 13. The input end of the driving shaft 19 is connected to the driving motor 20. When the intake pipe 3 is rotated, the driving motor 20 is turned on, and the driving motor 20 drives the driving shaft 19 to rotate. The driving shaft 19 drives the chain 17 to drive the sprocket A16 to rotate through the sprocket B18, thereby rotating the intake pipe 3. The rotation of the intake pipe 3 is convenient. Example
[0024] On the basis of Example 1, sprocket A16, chain 17 and sprocket B18 are replaced by two sets of gears, one set of gears is fixedly mounted on the intake pipe 3, and the other set of gears is installed on the drive shaft 19. The two sets of gears are meshed, and the drive shaft 19 can realize the rotation of the intake pipe 3 through the two sets of gears, thereby improving convenience.
[0025] The heat exchange cylinder 2, heat exchange tube 11, rotary joint 14, sprocket B18 and temperature gauge 21 of the waste heat utilization device of the biogas generator set of the utility model are all purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative efforts.
[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A waste heat utilization device for a biogas generator set, comprising a bottom plate (1) and a heat exchange tube (2), wherein a chamber is arranged in the heat exchange tube (2); characterized in that: The heat exchange tube (2) is fixedly mounted on the bottom plate (1) via the support mechanism, the air intake tube (3) is rotatably mounted on the heat exchange tube (2), the output end of the air intake tube (3) is connected to the heat exchange mechanism, the output end of the heat exchange mechanism is connected to the exhaust tube (4), the exhaust tube (4) is rotatably mounted on the heat exchange tube (2), the exhaust tube (4) is coaxial with the heat exchange tube (2), the heat exchange mechanism is located in the chamber of the heat exchange tube (2), the heat exchange mechanism has a heat exchange function, and the rotation mechanism is used to rotate the air intake tube (3).
2. A waste heat utilization device for a biogas generator set as claimed in claim 1, characterized in that: The support mechanism comprises a bracket (5), a support tube (6), a support rod (7), an air outlet pipe (8), a water inlet pipe (9) and a drain pipe (10); the support tube (6) is fixedly mounted on the bottom plate (1) via the bracket (5); a cavity is arranged inside the support tube (6); the heat exchange tube (2) is fixedly mounted in the cavity of the support tube (6) via the support rod (7); the air inlet pipe (3) is rotatably connected to the support tube (6); the output end of the exhaust pipe (4) is located in the cavity of the support tube (6); the output end of the exhaust pipe (4) is located outside the heat exchange tube (2); the input end of the air outlet pipe (8) is connected to the cavity of the support tube (6); the water inlet pipe (9) and the drain pipe (10) are respectively mounted on the upper and lower parts of the heat exchange tube (2); and valves are arranged on the water inlet pipe (9) and the drain pipe (10).
3. A waste heat utilization device for a biogas generator set as claimed in claim 1, characterized in that: The heat exchange mechanism comprises a heat exchange tube (11) and a branch tube (12); the input end of the heat exchange tube (11) is connected to the air intake tube (3); the output end of the heat exchange tube (11) is connected to the exhaust tube (4); the branch tube (12) is fixedly mounted on the heat exchange tube (11); and both left and right ends of the branch tube (12) are in communication with the heat exchange tube (11).
4. The waste heat utilization device of a biogas generator set according to claim 1, characterized in that: The rotating mechanism comprises a support plate (13), a rotating joint (14), an air supply pipe (15) and a driving mechanism, wherein the support plate (13) is fixedly mounted on the base plate (1), the rotating joint (14) is fixedly mounted on the support plate (13), the output end of the air supply pipe (15) is connected to the rotating joint (14), the air intake pipe (3) is rotatably mounted on the air intake pipe (3), the input end of the air intake pipe (3) is connected to the rotating joint (14), and the driving mechanism is used to rotate the air intake pipe (3).
5. A waste heat utilization device for a biogas generator set as claimed in claim 4, characterized in that: The driving mechanism comprises a sprocket A (16), a chain (17), a sprocket B (18), a driving shaft (19) and a driving motor (20); the sprocket A (16) is fixedly mounted on the air intake pipe (3); the sprocket A (16) is transmission-connected to the sprocket B (18) via the chain (17); the sprocket B (18) is fixedly mounted on the driving shaft (19); the driving shaft (19) is rotatably mounted on the support plate (13); and the input end of the driving shaft (19) is connected to the driving motor (20).
6. A waste heat utilization device for a biogas generator set as claimed in claim 2, characterized in that: The outer layer of the support tube (6) is provided with a thermal insulation coating.
7. A waste heat utilization device for a biogas generator set as claimed in claim 2, characterized in that: It also includes a temperature gauge (21), which is fixedly mounted on the support tube (6).