Waste heat utilization device of heating burner
By installing a heat exchanger and heat-conducting fins in the heating burner, the flue gas heat is extracted and heat exchanged with the greenhouse air, which solves the problem of flue gas heat waste, achieves full utilization of heat and fuel saving, and reduces heating costs.
Patent Information
- Application Number
- CN202422857078.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing biomass heating burners contain a large amount of heat in the flue gas during combustion, which is not fully utilized, resulting in heat waste and increased fuel usage, which increases heating costs.
A device for utilizing waste heat from a heating burner is designed. A heat exchanger is installed on the exhaust pipe. The heat of the flue gas is extracted using the heat exchange pipe and heat-conducting fins and heat is exchanged with the greenhouse air. The preheated greenhouse air enters the heating air duct and is finally discharged into the greenhouse through the exhaust pipe for heating, thereby realizing the recovery and utilization of flue gas heat.
Effectively recover flue gas heat, improve heat utilization, reduce biomass fuel usage, and lower heating costs.
Smart Images
Figure CN223402946U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of greenhouse heating devices, in particular to a device for utilizing waste heat from a heating burner. Background Art
[0002] Greenhouse heating involves various methods to raise the internal temperature of greenhouses to ensure that plants can grow normally even in unsuitable low temperatures. Heating methods include, but are not limited to, heating blocks, hot air furnaces, solar energy storage systems, electric heating, and water heating. These methods aim to provide a suitable growing environment for plants, promote their growth and development, and increase yields.
[0003] The most commonly used greenhouse heating device is a heating burner, which generates hot air by burning coal or other biomass fuels to heat the greenhouse. During the use of the above-mentioned biomass heating burner for heating, the applicant found that the ash produced by the burner during combustion produces smoke, and the smoke contains a lot of heat. This results in a large amount of waste of biomass combustion heat, resulting in the heat generated by the biomass not being fully utilized, increasing the amount of biomass fuel used and increasing heating costs. To solve the above-mentioned problems, a heating burner waste heat utilization device is proposed. Utility Model Content
[0004] The purpose of the present invention is to provide a device for utilizing waste heat from a heating burner in order to solve the above-mentioned problems.
[0005] The smoke generating device further comprises a smoke screen, wherein the smoke generating device further comprises a smoke screen, wherein the smoke screen is connected to the smoke generating device and the smoke generating device comprises a smoke screen.
[0006] In a preferred embodiment, the heat exchange tube is an S-shaped structure.
[0007] In a preferred embodiment, a filter is installed on the air inlet pipe.
[0008] In a preferred embodiment, a grid support plate is provided at the lower portion of the combustion furnace, a burner and a blower are installed on the heating furnace body, and the flame port of the burner and the air outlet of the blower are both connected to the combustion furnace.
[0009] In a preferred embodiment, an ash chamber is provided at the bottom of the heating furnace body, and an ash discharge door hingedly connected to the heating furnace body is provided at the discharge port of the ash chamber.
[0010] In a preferred embodiment, a feeding channel is connected between the combustion furnace and the heating furnace body, and a feeding door hingedly connected to the heating furnace body is provided at the feeding port of the feeding channel.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0012] 1. In the utility model, the heat of the flue gas of the greenhouse heating burner can be recovered and used to avoid waste of flue gas heat, and the heat of biomass combustion can be fully utilized to improve heat utilization rate, save more materials and energy, and reduce combustion costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0015] Figure 3 This is a schematic top view of the cross-sectional structure of the heating furnace body of the present invention.
[0016] Markings in the figure: 1-heating furnace body, 2-combustion furnace, 3-heating air duct, 4-exhaust pipe, 5-heat exchanger, 6-insulation shell, 7-heat exchange tube, 8-heat conducting fin, 9-air inlet pipe, 10-air supply pipe, 11-exhaust fan, 12-exhaust pipe, 13-exhaust fan, 14-filter, 15-grid support plate, 16-burner, 17-blower, 18-ash chamber, 19-ash discharge door, 20-feeding channel, 21-feeding door. DETAILED DESCRIPTION
[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0018] The following will be combined Figure 1-Figure 3 A device for utilizing waste heat from a heating burner according to an embodiment of the present invention is described in detail.
[0019] Example:
[0020] The utility model provides a heating burner waste heat utilization device, referring to Figures 1 to 3 As shown, it includes a heating furnace body 1, a combustion furnace 2 is provided inside the heating furnace body 1, and a heating air duct 3 is formed between the combustion furnace 2 and the heating furnace body 1, and a smoke exhaust pipe 4 is installed on the top of the heating furnace body 1, and the smoke exhaust pipe 4 is communicated with the combustion furnace 2, and a heat exchanger 5 is installed on the smoke exhaust pipe 4. The heat exchanger 5 includes an insulation shell 6, a heat exchange tube 7 and a heat-conducting fin 8, and the heat exchange tube 7 is installed inside the insulation shell 6, and the heat exchange tube 7 is connected to the smoke exhaust pipe 4, and the heat-conducting fin 8 is installed on the heat exchange tube 7. An air inlet pipe 9 is installed on one side of the insulation shell 6, and an air supply pipe 10 is installed on the other side of the insulation shell 6. The air outlet end of the air supply pipe 10 is fixedly connected to the heating furnace body 1, and the air supply pipe 10 is communicated with the heating air duct 3, and an exhaust fan 11 is installed on the air supply pipe 10. An exhaust pipe 12 is installed on one side of the heating furnace body 1, and the exhaust pipe 12 is communicated with the heating air duct 3. An exhaust fan 13 is installed on the exhaust pipe 12. When the combustion furnace 2 is burning and exhausting smoke, the exhaust fan 11 draws the air in the greenhouse from the air inlet pipe 9 into the heat exchanger 5. At this time, the heat exchange pipe 7 cooperates with the heat-conducting fins 8 to extract the flue gas heat and exchange heat with the greenhouse air, thereby preheating the greenhouse air. The preheated greenhouse air will then enter the heating air duct 3 in the heating furnace body 1, and the heat from the combustion furnace 2 will quickly heat the preheated greenhouse air. At this time, the exhaust fan 11 will draw the heated greenhouse air into the exhaust pipe 12 and discharge it into the greenhouse, thereby heating the greenhouse. The flue gas heat can be recycled and reused in the entire structure to avoid waste of flue gas heat, and the heat of biomass combustion can be fully utilized to improve heat utilization, saving more materials and energy.
[0021] refer to Figures 1 to 3 As shown, the heat exchange tube 7 has an S-shaped structure. The S-shaped heat exchange tube 7 increases the flow time of the flue gas in the heat exchange tube 7 and ensures sufficient heat exchange time.
[0022] refer to Figures 1 to 3 As shown, a filter screen 14 is installed on the air inlet pipe 9. This structure uses the filter screen 14 to filter the air entering the heat exchanger 5.
[0023] refer to Figures 1 to 3As shown, a grid support plate 15 is provided at the lower part of the combustion furnace 2, and a burner 16 and a blower 17 are installed on the heating furnace body 1. The flame port of the burner 16 and the air outlet of the blower 17 are both connected to the combustion furnace 2. This structure prevents the biomass fuel from being on the grid support plate 15, and then the burner 16 is used to ignite the biomass fuel, and then the blower 17 sends external air into the combustion furnace 2, thereby ensuring normal combustion and oxygen supply.
[0024] refer to Figures 1 to 3 As shown, an ash chamber 18 is provided at the bottom of the heating furnace body 1, and an ash discharge door 19 hingedly connected to the heating furnace body 1 is provided at the discharge port of the ash chamber 18. In this structure, after the biomass fuel is burned, the ash will fall from the grid support plate 15 into the ash chamber 18, and then the personnel can open the ash discharge door 19 to clean the ash chamber 18.
[0025] refer to Figures 1 to 3 As shown, a feeding channel 20 is connected between the combustion furnace 2 and the heating furnace body 1, and a feeding door 21 hinged to the heating furnace body 1 is provided at the feeding port of the feeding channel 20. This structure of the feeding channel 20 facilitates feeding into the combustion furnace 2, and the feeding door 21 facilitates opening and closing of the feeding channel 20.
[0026] It should be noted that the heating combustion device disclosed in the above embodiment is applied to the heating of greenhouses.
[0027] The implementation principle of a waste heat utilization device for a heating burner in an embodiment of the present application is as follows: during use, when the combustion furnace 2 is burning and exhausting smoke, the exhaust fan 11 draws the air in the greenhouse from the air inlet pipe 9 into the heat exchanger 5. At this time, the heat exchange pipe 7 cooperates with the heat-conducting fins 8 to extract the heat of the flue gas and exchange heat with the greenhouse air, thereby preheating the greenhouse air. The preheated greenhouse air will then enter the heating air duct 3 in the heating furnace body 1, and the heat from the combustion furnace 2 will quickly heat the preheated greenhouse air. The exhaust fan 11 will then draw the heated greenhouse air into the exhaust pipe 12 and discharge it into the greenhouse, thereby heating the greenhouse. The flue gas heat can be recycled and reused in the entire structure to avoid waste of flue gas heat, and the heat of biomass combustion can be fully utilized to improve heat utilization and save more materials and energy.
[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A heating burner waste heat utilization device, comprising a heating furnace body (1), characterized in that: The heating furnace body (1) is provided with a combustion furnace (2) inside, and the combustion furnace (2) and the space of the heating furnace body (1) form a heating air duct (3), and the top of the heating furnace body (1) is provided with a smoke exhaust pipe (4), and the smoke exhaust pipe (4) is communicated with the combustion furnace (2), and a heat exchanger (5) is installed on the smoke exhaust pipe (4), and the heat exchanger (5) includes a heat insulation shell (6), a heat exchange tube (7) and a heat conducting fin (8), and the heat exchange tube (7) is installed inside the heat insulation shell (6), the heat exchange tube (7) is connected to the smoke exhaust pipe (4), and the heat conducting fin (8) is provided on the smoke exhaust pipe (4). 8) is installed on the heat exchange tube (7), an air inlet pipe (9) is installed on one side of the insulation shell (6), and an air supply pipe (10) is installed on the other side of the insulation shell (6), the air outlet end of the air supply pipe (10) is fixedly connected to the heating furnace body (1), and the air supply pipe (10) is connected to the heating air duct (3), an exhaust fan (11) is installed on the air supply pipe (10), an exhaust pipe (12) is installed on one side of the heating furnace body (1), the exhaust pipe (12) is connected to the heating air duct (3), and an exhaust fan (13) is installed on the exhaust pipe (12).
2. A heating burner waste heat utilization device according to claim 1, characterized in that: The heat exchange tube (7) has an S-shaped structure.
3. The device for utilizing waste heat from a heating burner according to claim 1, wherein: A filter screen (14) is installed on the air inlet pipe (9).
4. The device for utilizing waste heat from a heating burner according to claim 1, wherein: A grid support plate (15) is provided at the lower portion of the combustion furnace (2), a burner (16) and a blower (17) are installed on the heating furnace body (1), and the flame port of the burner (16) and the air outlet of the blower (17) are both connected to the combustion furnace (2).
5. The device for utilizing waste heat from a heating burner according to claim 1, wherein: An ash chamber (18) is provided at the bottom of the heating furnace body (1), and an ash discharge door (19) hingedly connected to the heating furnace body (1) is provided at the discharge port of the ash chamber (18).
6. The device for utilizing waste heat from a heating burner according to claim 1, characterized in that: A feeding channel (20) is connected between the combustion furnace (2) and the heating furnace body (1), and a feeding door (21) hingedly connected to the heating furnace body (1) is provided at the feeding port of the feeding channel (20).