CN112483274A - Electric flame heating Stirling engine - Google Patents

Electric flame heating Stirling engine Download PDF

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Publication number
CN112483274A
CN112483274A CN202011505886.7A CN202011505886A CN112483274A CN 112483274 A CN112483274 A CN 112483274A CN 202011505886 A CN202011505886 A CN 202011505886A CN 112483274 A CN112483274 A CN 112483274A
Authority
CN
China
Prior art keywords
piston
heating
cylinder
cooling
electric flame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011505886.7A
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Chinese (zh)
Inventor
方霖
方连军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anji Hongda Intelligent Technology Co ltd
Original Assignee
Anji Hongda Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anji Hongda Intelligent Technology Co ltd filed Critical Anji Hongda Intelligent Technology Co ltd
Priority to CN202011505886.7A priority Critical patent/CN112483274A/en
Publication of CN112483274A publication Critical patent/CN112483274A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/044—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines having at least two working members, e.g. pistons, delivering power output
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/045—Controlling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/055—Heaters or coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2254/00—Heat inputs
    • F02G2254/45—Heat inputs by electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2275/00—Controls
    • F02G2275/40—Controls for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2280/00—Output delivery
    • F02G2280/20—Rotary generators

Abstract

The invention discloses an electric flame heating Stirling engine which comprises a heating cylinder and a cooling cylinder, wherein a heat exchange channel is communicated between the heating cylinder and the cooling cylinder, a first piston is arranged in the heating cylinder, a second piston is arranged in the cooling cylinder, the first piston is connected with a crankshaft through a first piston connecting rod, the second piston is connected with the crankshaft through a second piston connecting rod, a heating cavity is arranged outside the heating cylinder, a cooling cavity is arranged outside the cooling cavity, the bottom of the heating cavity is communicated with the bottom of the cooling cavity through an air pipe, an electric flame generator used for heating the heating cylinder is arranged at the bottom of the heating cavity, an exhaust port is arranged at the top of the heating cavity, and an air inlet is arranged at the top of the. The invention can automatically clean the ultra-long fin heat exchange tube, fully utilizes heat energy, has high working efficiency, and is clean and environment-friendly.

Description

Electric flame heating Stirling engine
Technical Field
The invention belongs to the technical field of engines, and particularly relates to an electric flame heating Stirling engine.
Background
Traditional stirling, generally, heating device and cooling device through setting up in the outside of distribution cylinder heat and cool off distribution cylinder both sides, the distribution piston through heating gas expansion and cooling gas's shrink deuterogamy distribution cylinder removes, thereby the acting piston in the drive acting cylinder does work, among the stirling structure of prior art, for avoiding heating and cooling device influence distribution cylinder's action, usually set up heating device and cooling device in distribution cylinder's outside both sides, it is not high to set up its thermal efficiency from this. In the prior art, the Stirling engine is widely applied to automobiles due to the fact that energy conversion efficiency is low, and due to the fact that the Stirling engine belongs to an external combustion engine, a large part of heat energy is taken away through heat exchange with air in a common heating mode, most of the heat energy is lost, and working efficiency is low for the heat energy to be utilized. For example, the Stirling engine introduced in the Chinese patent CN102678384B has good sealing performance and high thermal efficiency. The device comprises a gas distribution cylinder, a gas distribution piston, a heating device, a cooling device, a working cylinder and a working piston; the working piston is matched and sealed with the working cylinder through a piston ring and can slide in a reciprocating manner; the air distribution cylinder is connected with the acting cylinder through an air flow channel, and the air distribution piston and the acting piston synchronously reciprocate; the airflow channel is provided with two branches, and the two airflow channels are respectively led to the left inner cavity and the right inner cavity of the acting cylinder; the right inner cavity is connected with the air flow channel through an exhaust valve, and the right side of the acting piston is provided with a touch part opposite to the exhaust valve. Its advantages are: the energy loss is reduced, and the efficiency of the engine is improved; the sealing difficulty of the action part is reduced, the sealing performance is improved, and the loss of heat energy is reduced; the leakage-proof function is generated, and the sealing effect is further improved; the leakage loss of the whole working gas medium is reduced, and the efficiency is improved.
However, the heating device and the cooling device are two independent systems, and both need external energy to work, so that the energy utilization rate is low.
Disclosure of Invention
The invention aims to provide an electric flame heating Stirling engine which fully utilizes heat energy, has high working efficiency, and is clean and environment-friendly.
The technical scheme adopted for solving the technical problems is that the Stirling engine heated by electric flame comprises a heating cylinder and a cooling cylinder, a heat exchange channel is communicated between the heating cylinder and the cooling cylinder, a first piston is arranged in the heating cylinder, a second piston is arranged in the cooling cylinder, the first piston is connected with a crankshaft through a first piston connecting rod, the second piston is connected with the crankshaft through a second piston connecting rod, a heating cavity is arranged outside the heating cylinder, a cooling cavity is arranged outside the cooling cavity, the bottom of the heating cavity is communicated with the bottom of the cooling cavity through an air pipe, an electric flame generator used for heating the heating cylinder is arranged at the bottom of the heating cavity, an exhaust port is arranged at the top of the heating cavity, and an air inlet is arranged at the top of the cooling cavity.
Further, a portion of the heating cylinder is located within the heating chamber.
Further, a portion of the cooling cylinder is located within the cooling chamber.
Further, when the first piston is located at the maximum height, the bottom surface of the first piston is higher than the top surface of the heating cavity, and when the second piston is located at the maximum height, the bottom surface of the second piston is higher than the top surface of the cooling cavity.
Further, an air pump is further arranged on the air pipe.
Further, the end part of the crankshaft is further provided with a starting motor, the end part of the crankshaft, which is far away from the starting motor, is further provided with an output shaft, and the starting motor is further provided with a controller.
Further, the first piston and the second piston are both provided with sealing rings.
Further, the first piston is connected with the first piston connecting rod through a first piston shaft, and the second piston is connected with the second piston connecting rod through a second piston shaft.
Further, the number of the heating cylinder and the cooling cylinder is at least one.
Further, the number of the heating cylinders and the cooling cylinders is the same.
Further, the starting motor, the electric flame generator and the air pump are electrically connected.
The invention has the beneficial effects that:
1. according to the Stirling engine heated by electric flame, the heating cavity is arranged outside the heating cylinder, the cooling cavity is arranged outside the cooling cylinder, the heating cavity and the cooling cavity are connected through the air pipe with the air pump, the electric flame generator is arranged at the joint of the air pipe and the heating cavity, external air enters the cooling cavity under the action of the air pump to absorb heat in the cooling cylinder, the air after heat absorption is heated through the electric flame generator and enters the heating cavity to heat the heating cylinder, therefore, extra energy consumption is not needed to dissipate heat of the engine, and meanwhile, the heat dissipated by the cooling cavity is utilized to preheat the air to be heated through the electric flame. The working efficiency is high.
2. Because the electric flame generator is used as the heat source of the engine and used for heating the heating cylinder, the device is clean and environment-friendly.
3. The end part of the crankshaft is provided with the starting motor, so that the starting of the engine can be assisted, and meanwhile, when the engine needs to be decelerated, the starting motor is involved, and the starting motor can be used as the engine to absorb kinetic energy to generate power and transmit the power to the battery to be utilized.
The invention aims to provide an electric flame heating Stirling engine which fully utilizes heat energy, has high working efficiency, and is clean and environment-friendly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
FIG. 1 is a schematic diagram of an electric flame heated Stirling engine according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a piston arrangement for an electric flame heated Stirling engine according to an embodiment of the present invention;
in the figure: 1. a heating cylinder; 11. a heating cavity; 12. a first piston; 13. a first piston rod; 14. a first piston shaft; 15. a seal ring; 2. cooling the cylinder; 21. a cooling chamber; 22. a second piston; 23. a second piston connecting rod; 24. a second piston shaft; 3. a heat exchange channel; 4. an air tube; 41. an air pump; 5. an air inlet; 6. an exhaust port; 7. a crankshaft; 71. a first shaft portion; 72. a second shaft portion; 73. an output shaft; 8. an electric flame generator; 9. starting the motor; 91. and a controller.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is to be understood that the drawings in the following description are merely exemplary of the invention and that other drawings and embodiments can be derived by those skilled in the art without undue burden. The designation of the design orientation merely indicates the relative positional relationship between the respective members, not the absolute positional relationship.
The invention aims to provide an electric flame heating Stirling engine, which fully utilizes heat energy, has high working efficiency and is clean and environment-friendly, and please refer to figures 1-2, mainly comprising a heating cylinder 1 and a cooling cylinder 2, wherein the heating cylinder 1 is communicated with the cooling cylinder 2 through a heat exchange channel 3, a first piston 12 is arranged in the heating cylinder 1, a second piston 22 is arranged in the cooling cylinder 2, the first piston 12 is connected with a crankshaft 7 through a first piston connecting rod 13, the second piston 22 is connected with the crankshaft 7 through a second piston connecting rod 23, a heating cavity 11 is arranged outside the heating cylinder 1, a cooling cavity 21 is arranged outside the cooling cavity 2, the bottom of the heating cavity 11 is communicated with the bottom of the cooling cavity 21 through an air pipe 4, an electric flame generator 8 for heating the heating cylinder 1 is arranged at the bottom of the heating cavity 11, an exhaust port 6 is arranged at the top of the heating cavity 11, the top of the cooling cavity 21 is provided with an air inlet 5.
The heating cylinder 1 has a portion located in the heating chamber 11, and the cooling cylinder 2 has a portion located in the cooling chamber 21. When the first piston (12) is positioned at the maximum height, the bottom surface of the first piston (12) is higher than the top surface of the heating cavity (11). When the second piston (22) is located at the maximum height, the bottom surface of the second piston (22) is higher than the top surface of the cooling cavity (21). When the first piston 12 moves to the nearest position from the crankshaft 7, the first piston (12) is at the maximum height, the height of the bottom of the first piston 12 is higher than the height of the top of the heating cavity 11, and in this position, the first piston 12 is completely positioned outside the heating cavity 11, and the first piston 12 cannot be heated continuously by the heating cavity 11, so that the situation that the first piston 12 continuously absorbs heat and has too high temperature, which causes the too high temperature in the heating cylinder 1 to cause cylinder explosion is prevented. The bottom surface of the second piston 22 is higher than the top surface of the cooling cavity 21, the strokes of the second piston 22 and the first piston 12 are kept to be the same, the highest point and the lowest point are at the same height, and under the action of the crankshaft 7, the moving directions of the first piston 12 and the second piston 22 are opposite, so that the running stability of the engine is ensured.
The air tube 4 is also provided with an air pump 41. Under the effect of the air pump 41, air enters the cooling cavity 21 from the well air port 5 to cool the cooling cylinder 2, so that the air in the cooling cylinder 2 is cooled and contracted, then the air is heated by electric flame generated by the electric flame generator 8 through the air pipe 4, enters the heating cavity 11 to heat the heating cylinder 1, and meanwhile, the electric flame generated by the electric flame generator 8 heats the bottom of the heating cylinder 1, so that the temperature of the air in the heating cylinder is raised and expanded.
The end part of the crankshaft 7 is further provided with a starting motor 9, the end part of the crankshaft 7 far away from the starting motor 9 is further provided with an output shaft 73, and the starting motor is provided with a controller 91. The first piston 12 is connected to a first piston connecting rod 13 via a first piston shaft 14, and the second piston 22 is connected to a second piston connecting rod 23 via a second piston shaft 24. The first piston 12 and the second piston 22 are each provided with a sealing ring 15. When the electric heating device works, the starting motor 9 drives the crankshaft 7 to rotate, the first piston 12 and the second piston 22 are driven to move by the first piston connecting rod 13 and the second piston connecting rod 23, meanwhile, the electric flame generated by the electric flame generator 8 heats the bottom of the heating cylinder 1, the air heated by the electric flame enters the heating cavity 11 to heat the periphery of the heating cylinder 1, so that the volume of the gas in the heating cylinder 1 is expanded to push the first piston 12 to do work, when the first piston 12 moves towards the direction close to the crankshaft 7 to pass through the heat exchange channel 3, the heating cylinder 1 is communicated with the cooling cylinder 2 through the heat exchange channel 3, the heat in the heating cylinder 1 enters the cooling cylinder 2 through the heat exchange channel, under the cooling effect of the cooling cylinder 2, the gas in the heating cylinder 1 contracts, the first piston 12 moves towards the direction far away from the crankshaft 7, therefore, the first piston 12 reciprocates in the heating cylinder 1, the first piston 2 is connected with the first piston connecting rod 13 through the first piston shaft 14, the crankshaft 7 is driven to rotate by the first piston connecting rod, and the second piston 22 is always moved in the opposite direction to the first piston by the crankshaft 7, the second piston connecting rod 23 and the second piston shaft 24. The starting motor, the electric flame generator and the air pump are electrically connected. After the engine is started, the controller 91 turns 9 the starter motor off.
The quantity of heating jar 1, cooling cylinder 2 all is one at least, and the quantity of heating jar 1 and cooling cylinder 2 remains the same throughout, and every heating jar 1 all has a part to be located heating chamber 11, and every cooling cylinder 2 all has a part to be located cooling chamber 21, all is provided with first piston 12 in every heating jar 1, all is provided with second piston 22 in every cooling cylinder 2. When the power of the engine needs to be increased, the power can be increased by increasing the volumes of the heating cylinder 1 and the cooling cylinder 2; the engine power can also be increased by increasing the number of heating cylinders 1 and cooling cylinders 2.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the specific embodiments of the invention be limited to these descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (10)

1. An electric flame heated stirling engine, characterized in that: including heating cylinder (1) and cooling cylinder (2), there is heat transfer passageway (3) intercommunication between heating cylinder (1) and cooling cylinder (2), be provided with first piston (12) in heating cylinder (1), be provided with second piston (22) in cooling cylinder (2), first piston (12) are connected with bent axle (7) through first piston connecting rod (13), second piston (22) are connected with bent axle (7) through second piston connecting rod (23), heating cylinder (1) outside is provided with heating chamber (11), cooling chamber (2) outside is provided with cooling chamber (21), heating chamber (11) bottom and cooling chamber (21) bottom are through trachea (4) intercommunication, heating chamber (11) bottom is provided with and is used for the electric flame generator (8) for heating cylinder (1) heating, heating chamber (11) top is provided with gas vent (6), and an air inlet (5) is arranged at the top of the cooling cavity (21).
2. An electric flame-heated stirling engine in accordance with claim 1 wherein: a part of the heating cylinder (1) is positioned in the heating cavity (11).
3. An electric flame-heated stirling engine in accordance with claim 1 wherein: the cooling cylinder (2) has a portion located within the cooling chamber (21).
4. An electric flame-heated stirling engine in accordance with claim 1 wherein: when the first piston (12) is positioned at the maximum height, the bottom surface of the first piston (12) is higher than the top surface of the heating cavity (11), and when the second piston (22) is positioned at the maximum height, the bottom surface of the second piston (22) is higher than the top surface of the cooling cavity (21).
5. An electric flame-heated stirling engine in accordance with claim 1 wherein: an air pump (41) is also arranged on the air pipe (4).
6. An electric flame-heated stirling engine in accordance with claim 1 wherein: the end part of the crankshaft (7) is further provided with a starting motor (9), the end part of the crankshaft (7) far away from the starting motor (9) is further provided with an output shaft (73), and the starting motor is further provided with a controller (91).
7. An electric flame-heated stirling engine in accordance with claim 1 wherein: and the first piston (12) and the second piston (22) are both provided with sealing rings (15).
8. An electric flame-heated stirling engine in accordance with claim 1 wherein: the first piston (12) is connected to a first piston rod (13) via a first piston shaft (14), and the second piston (22) is connected to a second piston rod (23) via a second piston shaft (24).
9. An electric flame-heated stirling engine in accordance with claim 1 wherein: the number of the heating cylinder (1) and the cooling cylinder (2) is at least one.
10. An electric flame-heated stirling engine in accordance with claim 9 wherein: the number of the heating cylinders (1) and the number of the cooling cylinders (2) are the same.
CN202011505886.7A 2020-12-18 2020-12-18 Electric flame heating Stirling engine Pending CN112483274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011505886.7A CN112483274A (en) 2020-12-18 2020-12-18 Electric flame heating Stirling engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011505886.7A CN112483274A (en) 2020-12-18 2020-12-18 Electric flame heating Stirling engine

Publications (1)

Publication Number Publication Date
CN112483274A true CN112483274A (en) 2021-03-12

Family

ID=74914168

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011505886.7A Pending CN112483274A (en) 2020-12-18 2020-12-18 Electric flame heating Stirling engine

Country Status (1)

Country Link
CN (1) CN112483274A (en)

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