Thermal efficiency optimizing device for biogas power generation system

Abstract

The utility model discloses a biogas power generation system heat efficiency optimizing device which comprises a heat energy recycling mechanism, one side of the heat energy recycling mechanism is fixedly connected with a dust collecting mechanism, the heat energy recycling mechanism comprises a heat energy recycling box, and one side of the heat energy recycling box is fixedly provided with a first smoke inlet. One side of the heat energy recycling box is fixedly connected with a first smoke outlet, one side of the heat energy recycling box is fixedly provided with a liquid inlet pipe, one end of the liquid inlet pipe is fixedly connected with a circulating pipe, the other end of the circulating pipe is fixedly connected with a liquid outlet pipe, and filtered smoke enters the heat energy recycling box through the first smoke inlet and is discharged from the first smoke outlet. The heat exchange medium enters the circulating pipe from the liquid inlet pipe and is discharged from the liquid outlet pipe, and in the process, high-temperature flue gas exchanges heat with the heat exchange medium, so that most heat energy in the flue gas can be recycled, the energy utilization efficiency is improved, and the problem of resource waste caused by low heat efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy utilization and energy saving, in particular to a thermal efficiency optimization device for a biogas power generation system. Background Art

[0002] Biogas combustion power generation is a biogas utilization technology that has emerged with the continuous development of large-scale biogas pool construction and comprehensive biogas utilization. It uses the biogas produced by anaerobic fermentation treatment on the engine and is equipped with a comprehensive power generation device to generate electricity and heat. Biogas power generation has the characteristics of high efficiency, energy saving, safety and environmental protection. It is a widely distributed and inexpensive distributed energy source.

[0003] In the existing biogas generator set, the efficiency of engine power generation is generally 30%-40%, while the remaining 60%-70% of the energy is lost in the form of high-temperature flue gas, etc., resulting in a problem of low thermal efficiency and waste of resources. Utility Model Content

[0004] The utility model aims to provide a device for optimizing the thermal efficiency of a biogas power generation system, which has the advantage of recovering the heat of flue gas discharged by a biogas power generation unit and solves the problem of waste of resources caused by low thermal efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for optimizing thermal efficiency of a biogas power generation system, comprising a heat recovery mechanism, one side of which is fixedly connected with a dust collection mechanism;

[0006] The heat recovery mechanism comprises a heat recovery box, a first smoke inlet is fixedly installed on one side of the heat recovery box, a first smoke outlet is fixedly connected to one side of the heat recovery box, a liquid inlet pipe is fixedly installed on one side of the heat recovery box, one end of the liquid inlet pipe is fixedly connected to a circulation pipe, and the other end of the circulation pipe is fixedly connected to a liquid outlet pipe;

[0007] The dust collecting mechanism includes a dust collecting box and a cable. A second smoke inlet is fixedly installed on one side of the dust collecting box, a second smoke outlet is fixedly installed on one side of the dust collecting box, a transformer box is fixedly installed on the top of the dust collecting box, a plurality of dust collecting electrode plates are movably installed inside the dust collecting box, a plurality of discharge electrodes are fixedly installed inside the dust collecting box, and the dust collecting electrode plates and the discharge electrodes are fixedly connected to the bottom of the transformer box through cables.

[0008] As a preferred thermal efficiency optimization device for a biogas power generation system of the utility model, a plurality of fins are installed on the surface of the circulation pipe, and the circulation pipe and the fins are made of aluminum alloy.

[0009] As a preferred thermal efficiency optimization device for a biogas power generation system of the utility model, one end of the first smoke outlet is fixedly connected to a vortex generator.

[0010] As a preferred thermal efficiency optimization device for a biogas power generation system of the utility model, a cleaning motor is fixedly installed on one side of the dust collecting box, the output shaft of the cleaning motor is fixedly connected to a transmission rod through a coupling, a plurality of swing arms are fixedly installed on the outer wall of the transmission rod, connecting rods are rotatably installed on both sides of the swing arms, and a hammer is rotatably installed between the two groups of connecting rods, and an impact plate is fixedly installed on the bottom of the dust collecting electrode plate, and the impact plate is arranged on one side of the hammer.

[0011] As a preferred embodiment of the thermal efficiency optimization device for a biogas power generation system of the utility model, a dust hopper is fixedly installed at the bottom of the dust collecting box.

[0012] As a preferred thermal efficiency optimization device for a biogas power generation system of the utility model, a mounting plate is fixedly installed on the top of the dust collecting electrode plate, two groups of mounting blocks are fixedly installed on the top of the mounting plate, connecting ropes are fixedly installed inside the mounting blocks, a fixing frame is fixedly installed inside the dust collecting box, and the discharge electrode is fixedly installed on the top of the fixing frame.

[0013] As a preferred thermal efficiency optimization device for a biogas power generation system of the utility model, a filter box is fixedly installed between the dust collecting box and the second smoke inlet, and the heat recovery mechanism also includes a mounting frame, which is fixedly installed at the bottom of the heat recovery box.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model transformer box uses cables to make the discharge electrode have negative charge and the dust collecting electrode plate have positive charge, and a strong electric field is generated inside the heat recovery box. The negatively charged particles in the flue gas will be affected by the electric field force when passing through the electric field, and will be adsorbed onto the positively charged dust collecting electrode plate, so as to filter and collect the particles in the flue gas to prevent dust accumulation in the flue gas inside the heat recovery mechanism. The filtered flue gas enters the heat recovery box through the first smoke inlet and is discharged from the first smoke outlet. The heat exchange medium enters the circulation pipe from the liquid inlet pipe and is discharged from the liquid outlet pipe. In this process, the high-temperature flue gas exchanges heat with the heat exchange medium, which can recover most of the heat energy in the flue gas, improve energy utilization efficiency, and solve the problem of resource waste caused by low thermal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the heat energy recovery mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the circulation pipe of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the dust collecting mechanism of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the dust collecting mechanism of the utility model.

[0021] In the figure: 1. heat recovery mechanism; 101. mounting frame; 102. heat recovery box; 103. first smoke inlet; 104. first smoke outlet; 105. liquid inlet pipe; 106. circulation pipe; 107. liquid outlet pipe; 108. fin; 109. eddy current generator; 2. dust collecting mechanism; 201. dust collecting box; 202. second smoke inlet; 203. second smoke outlet; 204. transformer box; 205. cable; 206. dust collecting electrode plate; 207. discharge electrode; 208. dust cleaning motor; 209. transmission rod; 210. swing arm; 211. connecting rod; 212. hammer; 213. impact plate; 214. dust collecting hopper; 215. mounting plate; 216. mounting block; 217. connecting rope; 218. fixing frame; 219. filter box. DETAILED DESCRIPTION

[0022] See also Figure 1-5 , a thermal efficiency optimization device for a biogas power generation system, comprising a heat recovery mechanism 1, a dust collection mechanism 2 being fixedly connected to one side of the heat recovery mechanism 1;

[0023] The heat recovery mechanism 1 includes a heat recovery box 102, a first smoke inlet 103 is fixedly installed on one side of the heat recovery box 102, a first smoke outlet 104 is fixedly connected to one side of the heat recovery box 102, a liquid inlet pipe 105 is fixedly installed on one side of the heat recovery box 102, one end of the liquid inlet pipe 105 is fixedly connected to a circulation pipe 106, and the other end of the circulation pipe 106 is fixedly connected to a liquid outlet pipe 107;

[0024] The dust collecting mechanism 2 includes a dust collecting box 201 and a cable 205. A second smoke inlet 202 is fixedly installed on one side of the dust collecting box 201. A second smoke outlet 203 is fixedly installed on one side of the dust collecting box 201. A transformer box 204 is fixedly installed on the top of the dust collecting box 201. A plurality of dust collecting electrode plates 206 are movably installed inside the dust collecting box 201. A plurality of discharge electrodes 207 are fixedly installed inside the dust collecting box 201. The dust collecting electrode plates 206 and the discharge electrodes 207 are fixedly connected to the bottom of the transformer box 204 through the cable 205.

[0025] During use, high-temperature flue gas enters the dust collecting box 201 through the second smoke inlet 202, and the transformer box 204 makes the discharge electrode 207 have a negative charge and the dust collecting electrode plate 206 have a positive charge through the cable 205, and a strong electric field is generated inside the heat recovery box 102. The negatively charged particles in the flue gas will be affected by the electric field force when passing through the electric field, and will be adsorbed onto the positively charged dust collecting electrode plate 206, so as to filter and collect the particles in the flue gas to prevent dust accumulation in the flue gas inside the heat recovery mechanism 1. The filtered flue gas enters the heat recovery box 102 through the first smoke inlet 103 and is discharged from the first smoke outlet 104, and the heat exchange medium enters the circulation pipe 106 from the liquid inlet pipe 105 and is discharged from the liquid outlet pipe 107. In this process, the high-temperature flue gas and the heat exchange medium perform heat exchange, which can recover most of the heat energy in the flue gas, improve energy utilization efficiency, and solve the problem of resource waste caused by low thermal efficiency.

[0026] Furthermore, a plurality of fins 108 are installed on the surface of the circulation tube 106, and the circulation tube 106 and the fins 108 are made of aluminum alloy;

[0027] During use, the contact area between the circulation tube 106 and the high-temperature flue gas is increased by a plurality of fins 108, thereby improving the efficiency of heat exchange. At the same time, the circulation tube 106 and the fins 108 made of aluminum alloy can reduce the weight while maintaining the thermal conductivity.

[0028] Furthermore, one end of the first smoke outlet 104 is fixedly connected to a vortex generator 109;

[0029] During use, smoke discharged from the first smoke outlet 104 will drive the vortex generator 109 to operate and generate electricity, thereby further improving energy utilization efficiency.

[0030] Furthermore, a cleaning motor 208 is fixedly installed on one side of the dust collecting box 201, and the output shaft of the cleaning motor 208 is fixedly connected to a transmission rod 209 through a coupling, and a plurality of swing arms 210 are fixedly installed on the outer wall of the transmission rod 209, and connecting rods 211 are rotatably installed on both sides of the swing arms 210, and a hammer 212 is rotatably installed between the two groups of connecting rods 211, and an impact plate 213 is fixedly installed on the bottom of the dust collecting electrode plate 206, and the impact plate 213 is arranged on one side of the hammer 212;

[0031] During use, the cleaning motor 208 causes the hammer 212 to periodically hammer one side of the impact plate 213 through the swing arm 210 and the connecting rod 211, causing the dust collecting electrode plate 206 to shake and knock off the accumulated dust.

[0032] Furthermore, a dust hopper 214 is fixedly mounted at the bottom of the dust box 201;

[0033] During use, the dust beaten down is collected by the dust collecting hopper 214 .

[0034] Further, a mounting plate 215 is fixedly installed on the top of the dust collecting electrode plate 206, two sets of mounting blocks 216 are fixedly installed on the top of the mounting plate 215, a connecting rope 217 is fixedly installed inside the mounting block 216, a fixing frame 218 is fixedly installed inside the dust collecting box 201, and the discharge electrode 207 is fixedly installed on the top of the fixing frame 218;

[0035] During use, the mounting plate 215 flexibly mounts the dust collecting electrode plate 206 on the bottom of the dust box 201 through the mounting block 216 and the connecting rope 217 to reduce the force borne by the cable 205, and fixes the discharge electrode 207 inside the dust box 201 through the fixing frame 218 to prevent the discharge electrode 207 from shaking.

[0036] Furthermore, a filter box 219 is fixedly installed between the dust box 201 and the second smoke inlet 202, and the heat recovery mechanism 1 further includes a mounting frame 101, which is fixedly installed at the bottom of the heat recovery box 102;

[0037] During use, the mounting frame 101 provides support for the heat recovery box 102 , and the filter box 219 performs preliminary filtration on the flue gas.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for optimizing thermal efficiency of a biogas power generation system, comprising a heat recovery mechanism (1), characterized in that: A dust collection mechanism (2) is fixedly connected to one side of the heat energy recovery mechanism (1); The heat recovery mechanism (1) comprises a heat recovery box (102), a first smoke inlet (103) being fixedly mounted on one side of the heat recovery box (102), a first smoke outlet (104) being fixedly connected to one side of the heat recovery box (102), a liquid inlet pipe (105) being fixedly mounted on one side of the heat recovery box (102), one end of the liquid inlet pipe (105) being fixedly connected to a circulation pipe (106), and the other end of the circulation pipe (106) being fixedly connected to a liquid outlet pipe (107); The dust collecting mechanism (2) comprises a dust collecting box (201) and a cable (205); a second smoke inlet (202) is fixedly mounted on one side of the dust collecting box (201); a second smoke outlet (203) is fixedly mounted on one side of the dust collecting box (201); a transformer box (204) is fixedly mounted on the top of the dust collecting box (201); a plurality of dust collecting electrode plates (206) are movably mounted inside the dust collecting box (201); a plurality of discharge electrodes (207) are fixedly mounted inside the dust collecting box (201); and the dust collecting electrode plates (206) and the discharge electrodes (207) are fixedly connected to the bottom of the transformer box (204) via the cable (205).

2. The thermal efficiency optimization device for a biogas power generation system according to claim 1, characterized in that: A plurality of fins (108) are installed on the surface of the circulation tube (106); the circulation tube (106) and the fins (108) are made of aluminum alloy.

3. The thermal efficiency optimization device for a biogas power generation system according to claim 1, characterized in that: One end of the first smoke outlet (104) is fixedly connected to a vortex generator (109).

4. The thermal efficiency optimization device for a biogas power generation system according to claim 1, characterized in that: A dust cleaning motor (208) is fixedly mounted on one side of the dust collecting box (201); an output shaft of the dust cleaning motor (208) is fixedly connected to a transmission rod (209) via a coupling; a plurality of swing arms (210) are fixedly mounted on the outer wall of the transmission rod (209); connecting rods (211) are rotatably mounted on both sides of the swing arms (210); and a hammer (212) is rotatably mounted between the two groups of connecting rods (211); an impact plate (213) is fixedly mounted on the bottom of the dust collecting electrode plate (206); and the impact plate (213) is arranged on one side of the hammer (212).

5. The thermal efficiency optimization device for a biogas power generation system according to claim 1, characterized in that: A dust collecting hopper (214) is fixedly mounted on the bottom of the dust collecting box (201).

6. The thermal efficiency optimization device for a biogas power generation system according to claim 1, characterized in that: A mounting plate (215) is fixedly mounted on the top of the dust collecting electrode plate (206), two groups of mounting blocks (216) are fixedly mounted on the top of the mounting plate (215), connecting ropes (217) are fixedly mounted inside the mounting blocks (216), a fixing frame (218) is fixedly mounted inside the dust collecting box (201), and the discharge electrode (207) is fixedly mounted on the top of the fixing frame (218).

7. The thermal efficiency optimization device for a biogas power generation system according to claim 1, characterized in that: A filter box (219) is fixedly installed between the dust collection box (201) and the second smoke inlet (202), and the heat recovery mechanism (1) further comprises a mounting frame (101), wherein the mounting frame (101) is fixedly installed at the bottom of the heat recovery box (102).

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