CN110641251B - Semiconductor temperature difference power generation fuel oil warm air blower - Google Patents
Semiconductor temperature difference power generation fuel oil warm air blower Download PDFInfo
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- CN110641251B CN110641251B CN201910943350.4A CN201910943350A CN110641251B CN 110641251 B CN110641251 B CN 110641251B CN 201910943350 A CN201910943350 A CN 201910943350A CN 110641251 B CN110641251 B CN 110641251B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2268—Constructional features
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- Air-Conditioning For Vehicles (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
A semiconductor temperature difference power generation fuel oil fan heater comprises a shell, wherein a combustion chamber is arranged in the shell, a burner is arranged in the combustion chamber, the front end of the burner is provided with an inlet, the rear end of the burner is provided with a plurality of flue gas outlet holes, and the flue gas outlet holes are communicated with the space in the combustion chamber; a flue gas channel is formed between the outer wall of the combustor and the combustion chamber; one end of the combustion chamber is provided with a smoke outlet, and the smoke channel is connected with the chimney through the smoke outlet; the outer wall of the combustion chamber is provided with a temperature difference power generation module, and the temperature difference power generation module is provided with a twisted-tooth type spiral fin radiator. The device can also produce the electric quantity and be used for the power consumption device of self to use when can heating for the user again, and this kind of parking heater of taking thermoelectric generation can all reach the make full use of to the energy, extensively is used for the heating of long-distance freight train, passenger train etc..
Description
Technical Field
The invention relates to a semiconductor temperature difference power generation fuel oil fan heater, which belongs to the technical field of temperature difference power generation, power supply and combustion heating.
Background
In most areas in northern China, heating is carried out in winter, fossil fuels such as coal and the like are generally used for burning to generate heat, and water or steam is used as a medium for heat exchange and heating or electricity is used as a heat source for heating. However, the coal combustion and the electricity are used as heat sources for heating, so that the defects are that: the coal and other fossil fuels are adopted to burn for heating, so that the environmental pollution is serious, the occupied area is large, the service life is long, the maintenance and the repair are needed, meanwhile, the coal cannot be fully utilized, the electricity is adopted as a heat source for heating, the use is convenient, the efficiency is low, and the cost is overhigh. The warm air machine has good quality of hot air, no open fire and good maneuverability, is suitable for heating under the camping conditions of departments such as army command organs, field hospitals, confidential communications, field repair and the like in wartime, and is suitable for heating in field work in cold seasons of departments such as petroleum, natural gas, railways, communications and the like in peacetime. However, the existing fan heater has the following disadvantages: firstly, the wind speed of cold wind sucked by the fan blade is fast, so that the flame burnt in the combustion cylinder is easy to be unstable; secondly, the gear pump is adopted to convey the fuel, the atomized particles of the fuel are large, the combustion is insufficient, and the spraying amount of the fuel cannot be adjusted.
In order to overcome the defect of insufficient combustion, the combustion effect is generally improved by an improved combustion air supply mode or a fuel atomization mode. The patent with the application number of 201120209070.X provides "a novel fuel fan heater", is equipped with the flame stabilizing fan dish between fan blade and a combustion section of thick bamboo, and in the reentrant combustion section of thick bamboo of flame stabilizing fan dish when inhaling cold wind, wind speed and wind direction are stable, the flame stabilization in the combustion section of thick bamboo. Patent 201120209823.7 proposes a "fuel fan heater", which uses an air pump to deliver fuel, so that the atomized particles of fuel are smaller and the combustion is more sufficient; the air outlet quantity of the air pump can be adjusted through the air adjusting valve, so that the suction quantity of the fuel oil is adjusted, and the purpose of adjusting the fuel injection quantity is achieved. The method has certain help for improving the combustion efficiency of the fan heater, and the effect is not ideal enough. In addition, the biggest shortcoming of fuel oil electric fan heater for camping is that external power is needed when the electric fan heater is operated, a generator with certain power needs to be equipped when the electric fan heater is used in the field, the working noise of the generator is large, and the rest of field workers at night is influenced. Meanwhile, when the generator is maintained or breaks down, the fan heater is also forced to stop and stop heating.
Disclosure of Invention
The invention aims to provide a semiconductor temperature difference power generation fuel fan heater, which adopts evaporative efficient combustion to overcome the defect of insufficient combustion of the fan heater, utilizes the temperature difference of heat released by combustion to generate power for heating the self electric equipment of the fan heater, and solves the problem that the fan heater needs an external power supply.
In order to achieve the purpose, the invention adopts the technical scheme that:
a semiconductor temperature difference power generation fuel oil fan heater comprises a shell with a chimney, wherein one end of the shell is provided with an air inlet, and the other end of the shell is provided with an air outlet; a combustion chamber is arranged in the shell, a burner is arranged in the combustion chamber, the front end of the burner is provided with an inlet, the rear end of the burner is provided with a plurality of flue gas outlet holes, and the flue gas outlet holes are communicated with the space in the combustion chamber; a flue gas channel is formed between the outer wall of the combustor and the combustion chamber; one end of the combustion chamber is provided with a smoke outlet, and the smoke channel is connected with the chimney through the smoke outlet;
the outer wall of the combustion chamber is provided with a temperature difference power generation module, and the temperature difference power generation module is provided with a twisted-tooth type spiral fin radiator;
air is sucked in through the air inlet, is subjected to heat exchange through the twisted-tooth type spiral fin radiator and then is blown into a room through the air outlet for heating;
the fuel is fed into the combustor, the combustion-supporting air enters the combustor to be mixed with the fuel, the fuel is combusted in the combustor, and the generated flue gas passes through the flue gas channel and then reaches the flue gas outlet to be discharged through the chimney.
The invention has the further improvement that a blower is arranged in the air inlet, and a filter screen is arranged at the air inlet.
The invention is further improved in that the blower is an axial flow fan.
The invention has the further improvement that a combustion-supporting air static pressure cavity is arranged at the inlet of the combustor, a combustion-supporting fan and a motor are arranged in the combustion-supporting air static pressure cavity, the combustion-supporting fan and a blower are both connected with the motor, and the ratio of the air volume of the combustion-supporting fan to the air volume of the blower is 1 (8-10).
The invention is further improved in that the thermoelectric generation module is connected with the motor.
The invention has the further improvement that an air guide ring with an air guide grid is arranged at the outlet of the combustion air static pressure cavity.
The invention is further improved in that the motor is connected with a controller and a storage battery.
The invention has the further improvement that the combustion chamber comprises a shell, the shell is in a prismatic shape with a round inner part and a hexagonal outer part, a plurality of front end fins are welded on the front part of the inner wall of the shell, a plurality of rear end fins are welded on the rear part of the shell, the number of the front end fins is more than that of the rear end fins, and the height of the front end fins is higher than that of the rear end fins.
The invention is further improved in that the burner is an evaporative burner; the number ratio of the front end fins to the rear end fins is (1.2-1.5): 1, the height ratio of the front end fin to the rear end fin is 1: (0.6-0.8).
The invention is further improved in that the twisted-teeth type spiral fin tube radiator is composed of a plurality of twisted-teeth type spiral fins, the top of each twisted-teeth type spiral fin is twisted at a certain angle relative to the root, the twisting angle is gradually increased from the root to the top, the twisting angle of the root is 30-45 degrees, the twisting angle of the top is 40-50 degrees, the thickness of each twisted-teeth type spiral fin is 0.2-1.5mm, the height of each twisted-teeth type spiral fin is 120-150mm, the width of the twisted-teeth type spiral fin is gradually increased from the root to the top, the width of the top of each twisted-teeth type spiral fin is 10-20mm, and the width of the root of each twisted-teeth type spiral fin is 7-14 mm.
Compared with the prior art, the invention has the beneficial effects that: the warm air blower is provided with the temperature difference power generation modules, the temperature difference power generation modules and the twisted-tooth type spiral fin radiator form a temperature difference power generation device, heat generated by fuel combustion can be used for generating power to supply power for devices such as a fan, an oil pump, a control system and an ignition system, the current situation that the traditional warm air blower is externally connected with a power supply when in work is eliminated, and therefore the utilization efficiency of energy is improved. The device can also produce the electric quantity and be used for the power consumption device of self to use when can heating for the user again, and this kind of warm braw machine with thermoelectric generation can all reach the make full use of to the energy, extensively is used for the heating of long-distance freight train, passenger train etc..
Furthermore, the warm air blower adopts the twisted-tooth type spiral fin radiator, the width of fins of the radiator is gradually increased from the front end to the rear end, the density of the fins is gradually reduced, meanwhile, the front end fins and the rear end fins are arranged in the combustion chamber, the number of the front end fins is more than that of the rear end fins, and the height of the front end fins is higher than that of the rear end fins.
Furthermore, the maximum power generation power is realized, and the temperature difference power generation module is ensured to work in the effective range. The proportion between the fuel consumption, the combustion air and the heat dissipation air, the proportion of the combustion air and the fuel consumption can ensure that the combustion is fully combusted and simultaneously a certain combustion temperature is provided, the maximization of the power generation power can be realized only under the specified heat dissipation air flow condition, if the heat dissipation air is excessive, the resistance is overlarge, the power consumption power is rapidly increased due to the increase of the resistance, if the heat dissipation air is too small, the heat dissipation is insufficient, and the generated energy is not enough to maintain the power consumption of the heat dissipation air. The temperature difference power generation module is not damaged when the generated power is maximized only under the conditions of the oil consumption, the combustion air and the heat dissipation air in the specified proportion.
Drawings
Fig. 1 is a general view of the entire fan heater.
Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
Fig. 3 is a cross-sectional view taken along line B-B of fig. 1.
Fig. 4 is a schematic structural diagram of a twisted-tooth spiral fin radiator.
Fig. 5 is a schematic view of the twist angle of the twisted helical fin.
Fig. 6 is a schematic structural view of a twisted helical fin.
Description of reference numerals: 1. an air inlet; 2. a blower; 3. a controller; 4. a motor; 5. a combustion fan; 6. a burner; 7. a twisted-tooth type spiral fin radiator; 8. a thermoelectric generation module; 9. an air outlet; 10. a combustion chamber; 11. a chimney; 12. a combustion air static pressure chamber; 13. an oil pump; 14. an oil pipe; 15. an air inlet pipe; 16 storage batteries; 17. a housing; 18. and (4) a fan-shaped copper block. 19. A front end fin; 20. a rear end fin; 21. fastening a bolt; 22. a copper sheet; 23. a hoop; 24 top portion; 25 roots.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, 2, 3, 4, 5 and 6, the present invention comprises a housing 17 with a chimney 11, the housing 17 is provided with a control system, the control system is arranged on the side wall of the motor, and the control system is of a conventional structure. One end of the shell 17 is provided with an air inlet 1, a blower 2 is arranged in the air inlet 1, and the other end is provided with an air outlet 9; the combustion chamber 10 is arranged in the shell 17, the blower 2 is located on one side of the combustion chamber 10, the combustion chamber 10 comprises a shell, the shell is in a shape of a prism with an internal circle and an external hexagon, a plurality of front end fins 19 are welded on the front portion of the inner wall of the shell, a plurality of rear end fins 20 are welded on the rear portion of the inner wall of the shell, the number of the front end fins 19 is more than that of the rear end fins 20, and the number ratio of the front end fins 19 to the rear end fins 20 is (1.2-1.5): 1, the height of the front end fin 19 is higher than that of the rear end fin 20, and the height ratio of the front end fin 19 to the rear end fin 20 is 1: (0.6-0.8).
A combustor 6 is arranged in the combustion chamber 10, an inlet is formed in the front end of the combustor 6, a combustion air static pressure cavity 12 is arranged at the inlet, a combustion fan 5 is arranged in the combustion air static pressure cavity 12, the combustion fan 5 is connected with a motor 4, the blower 2 is also connected with the motor 4, the motor 4 is connected with the controller 3, and in addition, the motor 4 is also connected with a storage battery 16.
An air guide ring with an air guide grid is arranged at the outlet of the combustion-supporting air static pressure cavity 12, a plurality of flue gas outlet holes are formed in the rear end of the combustor 6, and the flue gas outlet holes are communicated with the space in the combustion chamber 10. A flue gas channel is formed between the outer wall of the combustor 6 and the combustion chamber 10; one end of the combustion chamber 10 is provided with a smoke outlet which is connected with the chimney 11.
An igniter, a fire detection rod, a temperature sensor, a self-help combustion fan and an automatic control system are arranged on the combustor 6.
Be provided with a plurality of thermoelectric generation modules 8 on the outer wall of combustion chamber 10, be provided with the formula of turning round spiral fin radiator 7 on the thermoelectric generation module 8, the formula of turning round spiral fin radiator 7 of turning round sets up in shell 17, refer to fig. 2 and 3, because the casing that combustion chamber 10 is regular hexagonal prism, the outer wall in the casing sets up with the inner wall interval of casing, specifically, utilize the better fan-shaped copper billet 18 of heat conductivity to link to each other shells inner wall and outer wall, the formula of turning round spiral fin radiator 7 of turning round installs on the outer wall (casing) of combustion chamber 10.
Air is sucked in by the blower 2 through the air inlet 1, exchanges heat through the twisted-tooth type spiral fin radiator 7 and then is blown into a room through the air outlet 9 for heating; the type of the blower 2 is an axial flow blower, the air quantity of the combustion-supporting blower 5 and the air quantity of the blower 2 are in a ratio of 1 (8-10), and a filter screen is arranged at the air inlet 1.
The fuel oil is sent into the combustor 6 through the oil pipe 14 and the oil pump 13, the combustion-supporting air is sucked into the combustion-supporting air static pressure cavity 12 through the air inlet pipe 15, and then is blown into the combustor 6 by the combustion-supporting fan 5 to be mixed with the fuel oil, and is combusted in the combustor 6, and the generated flue gas passes through a flue gas channel formed by the combustion chamber 10 and the outer wall of the combustor 6, then reaches a flue gas outlet, and is discharged through the chimney 11.
The temperature difference power generation module 8 is connected with the motor 4, the oil pump 13 and the ignition device, and the electric quantity generated by the temperature difference power generation module 8 is used by the electric devices such as the motor 4, the ignition device and the oil pump 13.
The burner 6 of the present invention is an evaporative burner. According to the twisted-tooth type spiral fin radiator 7 adopted by the invention, the twisted-tooth type spiral fin radiator 7 is composed of a plurality of twisted-tooth type spiral fin tubes, referring to fig. 5, the manufacturing process of the twisted-tooth type spiral fin tubes is that a small round copper sheet 22 is cut off at the center position by a large round copper sheet, then stamping is carried out, and a hoop 23 is stamped out to be used as the root part of the twisted-tooth type spiral fin tube; cutting the part which is not punched by a tool into a notch between adjacent fins in a trapezoidal shape, wherein the notch extends from the root part to the top end of each fin; the closed hoop 23 is cut off by a tool, so that the use and installation are convenient, and meanwhile, two copper sheets 22 with round holes are welded at the cut-off position, so that the hoop 23 can form a closed structure by the fastening bolt 21; the fin is then twisted by a tool to a 45 ° shape.
The twisted-tooth type spiral finned tube radiator 7 adopted by the radiator comprises a plurality of twisted-tooth type spiral fins. Referring to fig. 2-6, the root of the twisted helical fin is an unclosed hoop 23, and the unclosed hoop 23 is connected into a closed structure by fastening bolts 21, that is, a plurality of fins fixed on the hoop 23 are arranged in a plurality of rows along the length direction and are arranged in a plurality of circles along the circumferential direction. The tops 24 of the fins are twisted at a certain angle relative to the roots 25, the twisting angle is gradually increased from the roots 25 to the tops 24, the twisting angle of the tops is 45 degrees, the thickness of the fins is 0.2-1.5mm, the height of the fins is 120-150mm, the width of the tops of the fins is 10-20mm, the width of the roots of the fins is 7-14mm, the width of the fins is gradually increased from the front ends to the rear ends, the width ratio of two adjacent circles of twisted-tooth type spiral fins is 1 (1.03-10.7), the density of the fins from the front ends to the rear ends is also gradually reduced, and the number ratio of two adjacent circles of twisted-tooth type spiral fins is 1.02-1.05): 1.
The twisted-teeth type spiral fin radiator 7 is not closed and is connected into a closed structure by a fastening bolt 21, so that the twisted-teeth type spiral fin radiator is conveniently sleeved on the outer wall of the combustion chamber. The device uses the twisted-tooth type spiral fin radiator, has the advantages of spiral fins, is beneficial to enabling fluid to be in contact with a propagation medium more widely in different directions in the flowing process, reduces the thickness and the wind resistance of a stagnant layer, improves the heat transfer performance, improves the heat transfer rate and enhances the heat exchange effect; the heat transfer fin structure has the advantages of staggered fins, increased turbulence degree of fluid, disturbance of wake flow to destroy heat transfer boundary layer, and good heat transfer performance because the length of the heat transfer fin structure in the flow direction is short and discontinuous, and the boundary layer is broken without increasing before. Each fin is twisted by a certain angle, so that the front and the back of each fin can be in contact with air, the heat dissipation area is increased, and the temperature difference between the cold end and the hot end of the temperature difference power generation device is increased, so that the power generation efficiency is improved.
The working process of the invention is as follows: when the fan heater starts to work, fuel oil is sprayed into the combustor 6 through the pressure of the oil pump 13, and is mixed and combusted with air blown in by the combustion fan 5 to generate high-temperature flue gas, the heat is transferred to the temperature difference power generation module 8 through the outer wall of the combustion chamber 10, the cold end of the temperature difference power generation module 8 is cooled through the twisted-tooth type spiral fin radiator 7, and air sucked from the outside by the air feeder 2 exchanges heat with the twisted-tooth type spiral fin radiator 7 to become clean high-temperature hot air which is sent into a vehicle to be warmed through the air outlet 9. In the working process, the electric quantity required by the combustor 6, the motor 4, the oil pump 13 and the whole control system is supplied with power through the temperature difference power generation device 8 in the fan heater, so that heating can be realized, power can be generated, the dependence on an external power supply is avoided, and the utilization rate of energy is also improved.
The heater of the present invention mainly comprises: the device comprises a shell with a chimney, a control system of the whole device is mounted on the shell, a combustion chamber with a smoke outlet is arranged in the shell, a combustor is arranged in the combustion chamber, a combustion-supporting air static pressure cavity is arranged at one end of the combustor, and a temperature difference power generation module and a twisted-tooth type spiral fin radiator are sequentially arranged on the outer wall of the combustion chamber. The electric quantity generated by the temperature difference power generation device supplies power to a motor, an oil pump, an ignition device and the like, the combustion-supporting fan and the air feeder are driven by the motor, air sent by the air feeder exchanges heat with the radiator to supply heat for a user, and the combustion-supporting fan provides air for fuel combustion in the combustion chamber. The device can also produce the electric quantity and be used for the power consumption device of self to use when can heating for the user again, and this kind of warm braw machine with thermoelectric generation can all reach the make full use of to the energy, extensively is used for the heating of long-distance freight train, passenger train etc..
Claims (7)
1. A semiconductor temperature difference power generation fuel oil fan heater is characterized by comprising a shell (17) with a chimney (11), wherein one end of the shell (17) is provided with an air inlet (1), and the other end of the shell is provided with an air outlet (9); a combustion chamber (10) is arranged in the shell (17), a combustor (6) is arranged in the combustion chamber (10), an inlet is formed in the front end of the combustor (6), a plurality of flue gas outlets are formed in the rear end of the combustor (6), and the flue gas outlets are communicated with the space in the combustion chamber (10); a flue gas channel is formed between the outer wall of the combustor (6) and the combustion chamber (10); one end of the combustion chamber (10) is provided with a flue gas outlet, and the flue gas channel is connected with the chimney (11) through the flue gas outlet;
a temperature difference power generation module (8) is arranged on the outer wall of the combustion chamber (10), and a twisted-tooth type spiral fin radiator (7) is arranged on the temperature difference power generation module (8);
air is sucked in through the air inlet (1), exchanges heat through the twisted-tooth type spiral fin radiator (7) and then is blown into a room through the air outlet (9) for heating;
fuel oil is fed into the combustor (6), combustion-supporting air enters the combustor (6) to be mixed with the fuel oil, the fuel oil is combusted in the combustor (6), and generated flue gas passes through the flue gas channel and then reaches the flue gas outlet and is discharged through the chimney (11);
the combustion chamber (10) comprises a shell, the shell is internally circular and externally hexagonal prism-shaped, a plurality of front end fins (19) are welded on the front part of the inner wall of the shell, a plurality of rear end fins (20) are welded on the rear part of the shell, the number of the front end fins (19) is more than that of the rear end fins (20), and the height of the front end fins (19) is higher than that of the rear end fins (20);
the burner (6) is an evaporative burner; the number ratio of the front end fins (19) to the rear end fins (20) is (1.2-1.5): 1, the height ratio of the front end fin (19) to the rear end fin (20) is 1: (0.6-0.8);
the twisted-teeth type spiral fin tube radiator (7) is composed of a plurality of twisted-teeth type spiral fins, the top of each twisted-teeth type spiral fin is twisted by a certain angle relative to the root, the twisting angle is gradually increased from the root to the top, the twisting angle of the root is 30-45 degrees, the twisting angle of the top is 40-50 degrees, the thickness of each twisted-teeth type spiral fin is 0.2-1.5mm, the height of each twisted-teeth type spiral fin is 120 mm, the width of each twisted-teeth type spiral fin is gradually increased from the root to the top, the width of the top of each twisted-teeth type spiral fin is 10-20mm, and the width of the root of each twisted-teeth type spiral fin is 7-14 mm.
2. The semiconductor temperature difference power generation fuel fan heater according to claim 1, characterized in that a blower (2) is arranged in the air inlet (1), and a filter screen is arranged at the air inlet (1).
3. The semiconductor temperature difference power generation fuel fan heater according to claim 1, characterized in that the blower (2) is an axial flow fan.
4. The semiconductor temperature difference power generation fuel fan heater according to claim 1, characterized in that a combustion air static pressure cavity (12) is arranged at an inlet of the burner (6), a combustion air blower (5) and a motor (4) are arranged in the combustion air static pressure cavity (12), the combustion air blower (5) and the blower (2) are both connected with the motor (4), and the ratio of the air volume of the combustion air blower (5) to the air volume of the blower (2) is 1 (8-10).
5. The semiconductor thermoelectric generation fuel oil fan heater according to claim 4, characterized in that the thermoelectric generation module (8) is connected with the motor (4).
6. The semiconductor temperature difference power generation fuel oil fan heater according to claim 4, characterized in that an air guide ring with an air guide grid is installed at an outlet of the combustion air static pressure cavity (12).
7. The semiconductor thermoelectric generation fuel oil fan heater according to claim 4, characterized in that the motor (4) is connected with a controller (3) and a storage battery (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910943350.4A CN110641251B (en) | 2019-09-30 | 2019-09-30 | Semiconductor temperature difference power generation fuel oil warm air blower |
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| CN201910943350.4A CN110641251B (en) | 2019-09-30 | 2019-09-30 | Semiconductor temperature difference power generation fuel oil warm air blower |
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| CN110641251B true CN110641251B (en) | 2021-03-26 |
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| CN111917336B (en) * | 2020-06-29 | 2022-05-24 | 天津商业大学 | Thermoelectric material semiconductor characteristic-based non-uniform reinforced fin thermoelectric generator |
| CN111887733B (en) * | 2020-06-30 | 2021-12-10 | 宁波方太厨具有限公司 | Air guide structure and steaming cooking equipment with same |
| CN113175708B (en) * | 2021-04-16 | 2022-10-25 | 西安交通大学 | Indoor air and outdoor fresh air purifying device capable of preventing haze, diminishing inflammation and preventing epidemic |
| CN114738820B (en) * | 2022-04-15 | 2023-06-06 | 西安科技大学 | Spontaneous electric liquid fuel evaporation type combustor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2662084Y (en) * | 2003-11-20 | 2004-12-08 | 赵升智 | Heat accumulating burning type gas pipe with fin |
| DE102006011727B3 (en) * | 2006-03-14 | 2007-11-22 | Webasto Ag | Combined heating / hot water system for mobile applications |
| US20130008423A1 (en) * | 2006-12-12 | 2013-01-10 | Enerco Group, Inc. | Forced air heater including on-board source of electric energy |
| CN203550197U (en) * | 2013-11-08 | 2014-04-16 | 中国人民解放军总后勤部建筑工程研究所 | Self-powered fuel fan heater |
| CN204007276U (en) * | 2014-04-18 | 2014-12-10 | 上海理工大学 | Turn round tooth finned tube and finned tube heat-exchanging tube bundle thereof |
| CN205079447U (en) * | 2015-09-30 | 2016-03-09 | 中国人民解放军总后勤部建筑工程研究所 | Thermoelectric fuel electric fan heater |
| CN108679700A (en) * | 2018-07-19 | 2018-10-19 | 慈溪市恒进电子有限公司 | A kind of self power generation blower mechanism of outdoor heater |
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