Combustion chamber for a stirling engine cogeneration system and method of implementing the same

Abstract

The application discloses a combustion chamber for a Stirling engine-based combined heat and power system and an implementation method thereof. The combustion chamber comprises a combustion chamber assembly, the combustion chamber assembly comprising an outer cylinder body, a heat exchanger, a water cooling jacket and an insulating layer arranged in the outer cylinder body in an axial direction, the heat exchanger being arranged at one end of the outer cylinder body, the insulating layer being arranged at the other end of the outer cylinder body and used for being connected with a Stirling engine body, and the water cooling jacket being arranged between the heat exchanger and the insulating layer; a burner arranged in the outer cylinder body and located at the inner side of the heat exchanger, the burner having a gap with the water cooling jacket; and an adjusting member arranged between the burner and the outer cylinder body and used for adjusting the gap size between the burner and the water cooling jacket. In the application, the integration design of the heat supply and power supply systems is realized, the system volume power density is improved, and the power supply and heat supply ratio can be actively adjusted.

Description

Technical Field

[0001] This invention relates to the field of burner equipment technology, and further to a combustion chamber and its implementation method for a Stirling engine combined heat and power system. Background Technology

[0002] A Stirling combined heat and power (CHP) system is an energy device based on a Stirling engine that integrates heating and power generation. The system comprises a heating system and a power supply system. High-temperature flue gas generated by the Stirling engine enters the heat exchanger of the heating system to heat the medium, thus providing thermal energy. The Stirling engine converts the heat from the heat source into kinetic energy to drive an electric motor, thereby generating electricity.

[0003] Existing Stirling engine-based cogeneration systems do not employ integrated design for their heating and power supply systems, resulting in large system size, heat waste, and low volumetric power density. Furthermore, existing Stirling cogeneration systems cannot actively adjust the ratio of heating to power supply, thus failing to rationally allocate the heat and electricity ratio according to changes in demand, leading to energy waste.

[0004] Therefore, it is necessary to design a combustion chamber and its implementation method based on a Stirling engine cogeneration system to solve the above problems. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to provide a combustion chamber and its implementation method for a Stirling engine cogeneration system, thereby achieving integrated design of the heating and power supply systems, improving the system's volumetric power density, and enabling active adjustment of the power supply and heating ratio.

[0006] To achieve the above objectives, the present invention provides a combustion chamber for a Stirling engine combined heat and power system, comprising:

[0007] A combustion chamber assembly, comprising an outer cylinder and a heat exchanger, a water-cooled jacket, and an insulation layer disposed axially within the outer cylinder. The heat exchanger is disposed at one end of the outer cylinder, and the insulation layer is disposed at the other end of the outer cylinder for connection to the Stirling engine fuselage. The water-cooled jacket is disposed between the heat exchanger and the insulation layer.

[0008] A burner is disposed inside the outer cylinder and located inside the heat exchanger, and there is a gap between the burner and the water-cooled jacket;

[0009] An adjusting component is disposed between the burner and the outer cylinder. The adjusting component is used to adjust the gap between the burner and the water-cooled jacket, thereby adjusting the flow ratio of the high-temperature flue gas generated by the burner flowing into the Stirling engine heater and directly into the heat exchanger.

[0010] In some embodiments, the outer cylinder is provided with a water inlet, a water outlet, and a vent. The water inlet is connected to one end of the heat exchanger for supplying cooling water into the heat exchanger. The water outlet is connected to the other end of the heat exchanger for discharging the hot water after heat exchange. The vent is used to discharge the high-temperature flue gas generated by the burner.

[0011] In some embodiments, multiple air outlets are provided, and the multiple air outlets are arranged at intervals along the circumference of the outer cylinder.

[0012] An exhaust ring pipe is fixed on the outer wall of the outer cylinder, and the internal space of the exhaust ring pipe forms a flue gas collection chamber. The plurality of exhaust holes are respectively connected to the flue gas collection chamber.

[0013] The exhaust ring pipe is also provided with an air outlet, which is connected to the flue gas collection chamber and is used to connect to an external exhaust pipe.

[0014] In some embodiments, the heat exchanger includes a plurality of heat exchange tubes, which are arranged circumferentially along the outer cylinder. One end of each heat exchange tube is connected to the water inlet, and the other end is connected to the water outlet.

[0015] In some embodiments, a plurality of heat exchange tubes are arranged in two rows along the circumference of the outer cylinder, and a plurality of heat exchange fins are fixedly connected between two adjacent heat exchange tubes. The heat exchange fins adopt a fan-shaped structure and are evenly distributed between the heat exchange tubes.

[0016] In some embodiments, the water-cooled jacket is provided with a high-temperature flue gas flow channel and a cooling water flow channel, wherein the high-temperature flue gas flow channel is used for the flow of high-temperature flue gas and the cooling water flow channel is used for the flow of cooling water.

[0017] The insulation layer has a ring structure and is sandwiched between the outer cylinder and the Stirling engine fuselage.

[0018] In some embodiments, the burner includes a burner flange, a burner body, and a heat insulation layer. The burner flange is fixedly connected to the burner body, the burner body is placed inside the outer cylinder, the burner flange rests on the end of the outer cylinder and is detachably connected to the outer cylinder, and the heat insulation layer is sandwiched between the burner body and the outer cylinder.

[0019] In some embodiments, the burner flange is provided with a main water outlet port, the position of which corresponds to the position of the water outlet of the outer cylinder;

[0020] The burner body is provided with a number of swirl vanes and a number of swirl holes. The number of swirl vanes surround the central axis of the burner body, and the number of swirl holes are evenly arranged along the circumference of the burner body.

[0021] The burner body has an internal cavity, and the burner body has an external cavity between its inner and outer walls.

[0022] In some embodiments, the adjusting element is a circular shim, which is sandwiched between the end of the outer cylinder and the burner flange;

[0023] The burner body has a protruding structure at one end away from the burner flange. The protruding structure is flared. A concave structure is provided at a corresponding position inside the water-cooling jacket. There is a gap between the concave structure and the protruding structure.

[0024] The thickness of the circular pad is adjustable, which allows the gap between the concave structure and the convex structure to be adjusted, thereby adjusting the ratio of heating to power supply.

[0025] According to another aspect of the present invention, the present invention further provides a method for implementing a combustion chamber of a Stirling engine-based cogeneration system as described in any one of the above claims, comprising the steps of:

[0026] A portion of the combustible mixture is fully premixed by the swirl vanes and injected into the burner cavity for full combustion. The other portion of the combustible mixture enters the outer cavity of the combustion chamber after passing through the swirl holes, and then enters the inner cavity of the combustion chamber for combustion, generating high-temperature flue gas.

[0027] A portion of the high-temperature flue gas flows into the Stirling engine heater through the flue gas passage of the water-cooled jacket. After absorbing heat, the heater drives the motor to generate electricity and then flows back to the heat exchanger. Another portion of the high-temperature flue gas flows directly into the heat exchanger through the gap between the burner and the outer cylinder. The two portions of high-temperature flue gas heat the cooling water in the heat exchanger. The flue gas after heat exchange enters the flue gas collection chamber and is then discharged through the outlet.

[0028] Cooling water enters the heat exchanger through the inlet and exchanges heat with the high-temperature flue gas outside the heat exchanger. The hot water after heat exchange is discharged through the outlet and enters the heating system.

[0029] The adjustment component adjusts the gap between the burner and the outer cylinder, thereby adjusting the flow ratio of the high-temperature flue gas generated by the burner into the Stirling engine heater and directly into the heat exchanger, thus realizing the active adjustment of the ratio of heating and power supply in the combined heat and power system.

[0030] Compared with the prior art, the combustion chamber and its implementation method for a Stirling engine cogeneration system provided by the present invention have the following advantages:

[0031] In this invention, the combustion chamber of the Stirling engine cogeneration system is a highly integrated combustion chamber with an adjustable heating and power supply ratio. The tube-fin heat exchanger is directly integrated into the circumference of the combustion chamber, significantly reducing heat loss along the path. The adjustment component is a circular shim with adjustable thickness, which can control the ratio of flue gas entering the heat exchanger and the Stirling engine heater, thereby achieving controllable and adjustable heating and power supply ratios. Attached Figure Description

[0032] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0033] Figure 1 This is a schematic diagram of the combustion chamber of a Stirling engine cogeneration system, based on a preferred embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the burner structure according to a preferred embodiment of the present invention.

[0035] Explanation of icon numbers:

[0036] Combustible mixture 001, high-temperature flue gas 002, cooling water 003, hot water 004, combustion chamber assembly 100, outer cylinder 110, flue gas collection chamber 111, gas outlet 112, water inlet 113, water outlet 114, heat exchanger 120, heat exchange tube 121, heat exchange fins 122, water cooling jacket 130, insulation layer 140, burner 200, burner flange 210, burner body 220, swirl vane 221, swirl hole 222, burner inner cavity 223, burner outer cavity 224, insulation layer 230, adjusting component 300. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0038] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0039] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2 The present invention provides a combustion chamber for a Stirling engine cogeneration system, comprising: a combustion chamber assembly 100, a burner 200, and an adjusting component 300. The combustion chamber assembly 100 includes an outer cylinder 110 and a heat exchanger 120, a water-cooled jacket 130, and an insulation layer 140 axially disposed within the outer cylinder 110. The heat exchanger 120 is disposed at one end of the outer cylinder 110, and the insulation layer 140 is disposed at the other end of the outer cylinder 110 for connection to the Stirling engine fuselage. The water-cooled jacket 130 is disposed between the heat exchanger 120 and the insulation layer 140. The burner 200 is disposed within the outer cylinder 110 and located inside the heat exchanger 120, with a gap between the burner 200 and the water-cooled jacket 130. The adjusting component 300 is disposed between the burner 200 and the outer cylinder 110. The adjusting component 300 is used to adjust the gap between the burner 200 and the water cooling jacket 130, thereby adjusting the flow ratio of the high-temperature flue gas 002 generated by the burner 200 into the Stirling engine heater and directly into the heat exchanger 140.

[0043] In this embodiment, the heat exchanger 120 is directly integrated into the combustion chamber of the Stirling engine cogeneration system. After the high-temperature flue gas 002 is generated, it does not need to be transported through pipelines. It can directly heat the medium through the heat exchanger 120 inside the outer cylinder 110, which reduces the system volume, improves the system integration, and reduces heat loss along the way. Furthermore, by setting the adjustment component 300 to adjust the gap between the burner 200 and the water-cooled jacket 130, the ratio of heating and power supply can be quantitatively controlled and customized according to environmental changes, so as to make full use of energy.

[0044] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2 The outer cylinder 110 has a hollow columnar structure. The heat exchanger 120 is arranged along the inner wall of the outer cylinder 110. The outer cylinder 110 is provided with a water inlet 113, a water outlet 114 and an air outlet. The water inlet 113 is connected to one end of the heat exchanger 120 for supplying cooling water 003 into the heat exchanger 120. The water outlet 114 is connected to the other end of the heat exchanger 120 for supplying hot water 004 after heat exchange in the heat exchanger 120. The air outlet is used to discharge the high-temperature flue gas 002 generated by the burner 200.

[0045] Furthermore, multiple air outlets are provided, penetrating the outer cylinder 110 and arranged at intervals along the circumference of the outer cylinder 110. An exhaust ring pipe is fixed on the outer wall of the outer cylinder 110, encircling the outer cylinder 110 once. The internal space of the exhaust ring pipe forms a flue gas collection chamber 111, and the multiple air outlets are respectively connected to the flue gas collection chamber 111. An air outlet 112 is also provided on the exhaust ring pipe, which is connected to the flue gas collection chamber 111 and is used to connect an external exhaust pipe.

[0046] It should be noted that the specific structure of the outer cylinder 110 is described in accordance with the accompanying drawings. In actual use, other structures may also be used, and the air outlet 112 may also be constructed in other ways to achieve exhaust. This description is only intended to better illustrate the present invention and should not be construed as a limitation of the present invention.

[0047] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2 The heat exchanger 120 can be fixed inside the outer cylinder 110 by welding or screwing. The heat exchanger 120 includes a plurality of heat exchange tubes 121, which are arranged circumferentially along the outer cylinder 110. One end of each heat exchange tube 121 is connected to the water inlet 113 and the other end is connected to the water outlet 114.

[0048] Furthermore, the heat exchanger 120 is a tube-fin heat exchanger, with several heat exchange tubes 121 arranged in two rows around the outer cylinder 110. Several heat exchange fins 122 are fixedly connected between adjacent heat exchange tubes 121. The heat exchange fins 122 adopt a fan-shaped structure and are evenly distributed between the heat exchange tubes 121. By directly integrating the tube-fin heat exchanger into the circumference of the combustion chamber, heat loss along the path is significantly reduced, and the tube-fin heat exchanger has the advantage of high heat exchange efficiency.

[0049] Furthermore, the water-cooled jacket 130 can be fixed inside the outer cylinder 110 by welding or screwing. The water-cooled jacket 130 is provided with a high-temperature flue gas flow channel and a cooling water flow channel. The high-temperature flue gas flow channel is used for the flow of high-temperature flue gas 002, and the cooling water flow channel is used for the flow of cooling water 003. The insulation layer 140 has a ring structure and is sandwiched between the outer cylinder 110 and the Stirling engine fuselage.

[0050] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2 The burner 200 includes a burner flange 210, a burner body 220, and a heat insulation layer 230. The burner flange 210 is fixedly connected to the burner body 220. The burner body 220 is placed inside the outer cylinder 110. The burner flange 210 rests on the end of the outer cylinder 110 and is detachably connected to the outer cylinder 110 by bolts. The heat insulation layer 230 is sandwiched between the burner body 220 and the outer cylinder 110.

[0051] The burner flange 210 is equipped with a main water outlet port, the position of which corresponds to the position of the water outlet 114 of the outer cylinder 110. The burner body 220 is provided with several swirl vanes 221 and several swirl holes 222. The swirl vanes 221 are arranged around the central axis of the burner body 220, and the swirl holes 222 are evenly distributed circumferentially around the burner body 220. The burner body 220 has an internal burner cavity 223, and an external burner cavity 224 is formed between the inner and outer walls of the burner body 220.

[0052] Furthermore, the adjusting component 300 is a circular shim, which is sandwiched between the end of the outer cylinder 110 and the burner flange 210. The thickness of the circular shim is adjustable, which allows the gap between the burner 200 and the water-cooled jacket 130 to be adjusted, thereby enabling the adjustment of the flow ratio of the high-temperature flue gas 002 generated by the burner 200 into the Stirling engine heater and directly into the heat exchanger 140.

[0053] Furthermore, the burner body 220 has a convex structure at the end away from the burner flange 210, the convex structure being flared in shape, and a corresponding concave structure is provided inside the water-cooling jacket 130, with a gap between the concave and convex structures. By adjusting the thickness of the circular gasket, the size of the gap between the concave and convex structures can be adjusted, thereby adjusting the heating and power supply ratio.

[0054] According to another aspect of the invention, reference is made to the appended specification. Figure 1 , Figure 2 The present invention further provides a method for implementing a combustion chamber in any of the above-described Stirling engine cogeneration systems, comprising the steps of:

[0055] A portion of the combustible mixture 001 is fully premixed by the swirl vane 221 and injected into the burner cavity 223 for full combustion. Another portion of the combustible mixture 001 enters the outer cavity 224 of the combustion chamber after passing through the swirl hole 222, and then enters the inner cavity 223 of the combustion chamber for combustion, generating high-temperature flue gas 002.

[0056] A portion of the high-temperature flue gas 002 flows into the Stirling engine heater through the flue gas flow channel of the water-cooled jacket 130. After absorbing heat, the heater drives the motor to generate electricity and then flows back to the heat exchanger 120. Another portion of the high-temperature flue gas 002 flows directly into the heat exchanger 120 through the gap between the burner 200 and the outer cylinder 110. The two portions of high-temperature flue gas 002 heat the cooling water 003 in the heat exchanger 120. The flue gas after heat exchange enters the flue gas collection chamber 111 and is then discharged through the outlet 112.

[0057] Cooling water 003 enters the heat exchanger 120 through the inlet 113 and exchanges heat with the high-temperature flue gas 002 outside the heat exchanger 120. The hot water 004 after heat exchange is discharged through the outlet 114 and enters the heating system.

[0058] Adjustment component 300 adjusts the gap between burner 200 and water-cooled jacket 130, thereby adjusting the flow ratio of high-temperature flue gas 002 generated by burner 200 into Stirling engine heater and directly into heat exchanger 120, thus realizing the active adjustment of the ratio of heating and power supply in the combined heat and power system.

[0059] Specifically, refer to the instruction manual appendix. Figure 1The outer cylinder 110 is welded to the heat exchanger 120 and the water-cooled jacket 130. The heat exchanger 120 includes heat exchange tubes 121 and heat exchange fins 122, which are welded to the heat exchange tubes 121 to increase the heat exchange area. Cooling water 003 enters the heat exchange tubes 121 through the inlet 113 and exchanges heat with the high-temperature flue gas 002 outside the heat exchange tubes 121. The hot water 004 after heat exchange is discharged through the outlet 114 and enters the heating system. The heat exchange tubes 121 contain cooling water 003 and are surrounded by high-temperature flue gas 002. The high-temperature flue gas 002 enters the flue gas collection chamber 111 after passing through the heat exchanger 120 and is then discharged through the outlet 112.

[0060] Reference manual attached Figure 1 The burner flange 210 is connected to the burner body 220 by welding, and the swirl vanes 221 and swirl holes 222 are circumferentially distributed and welded to the burner body 220.

[0061] Reference manual attached Figure 1 , Figure 2 A portion of the combustible mixture 001 is fully premixed by the swirl vane 221 and injected into the burner cavity 223 for complete combustion. Another portion of the combustible mixture 001 enters the outer combustion chamber 224 through the swirl orifice 222, and then enters the inner combustion chamber 223 for combustion, generating high-temperature flue gas 002. A portion of the high-temperature flue gas 002 flows into the Stirling engine heater through the flue gas passage of the water-cooled jacket 130. The heater absorbs heat and drives the motor to generate electricity, then flows back to the heat exchanger 120. The other portion of the high-temperature flue gas 002 flows directly into the heat exchanger 120 through the gap between the burner 200 and the outer cylinder 110. The combined high-temperature flue gas 002 heats the cooling water 003 in the heat exchange tube 121, providing heat. The heat-exchanged flue gas enters the flue gas collection chamber 111 and is then discharged through the outlet 112.

[0062] Reference manual attached Figure 1 The adjusting component 300 is a circular gasket of a certain thickness, installed between the burner flange 210 and the outer cylinder 110, used to adjust the gap between the burner 200 and the water-cooled jacket 130. By adjusting the thickness of the circular gasket between the combustion chamber assembly 100 and the burner 200, the gap between the burner 200 and the water-cooled jacket 130 is adjusted, thereby adjusting the flow ratio of high-temperature flue gas 002 flowing into the Stirling engine heater and directly into the heat exchanger 120, thus achieving active adjustment of the ratio of heating and power supply in the combined heat and power system. Increasing the thickness of the circular gasket increases the gap between the burner 200 and the water-cooled jacket 130, increasing the flow rate of high-temperature flue gas 002 directly into the heat exchanger 120, increasing the heating ratio, while simultaneously decreasing the flow rate of high-temperature flue gas 002 flowing into the Stirling engine heater, thus decreasing the power supply ratio.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0064] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A combustion chamber for a Stirling engine combined heat and power system, characterized in that, include: A combustion chamber assembly, comprising an outer cylinder and a heat exchanger, a water-cooled jacket, and an insulation layer disposed axially within the outer cylinder. The heat exchanger is disposed at one end of the outer cylinder, and the insulation layer is disposed at the other end of the outer cylinder for connection to the Stirling engine fuselage. The water-cooled jacket is disposed between the heat exchanger and the insulation layer. A burner is disposed inside the outer cylinder and located inside the heat exchanger, and there is a gap between the burner and the water-cooled jacket; An adjusting component is disposed between the burner and the outer cylinder. The adjusting component is used to adjust the gap between the burner and the water-cooled jacket, thereby adjusting the flow ratio of the high-temperature flue gas generated by the burner flowing into the Stirling engine heater and directly into the heat exchanger. The outer cylinder is provided with a water inlet, a water outlet and a vent. The water inlet is connected to one end of the heat exchanger for supplying cooling water into the heat exchanger. The water outlet is connected to the other end of the heat exchanger for discharging the hot water after heat exchange. The vent is used to discharge the high-temperature flue gas generated by the burner. The heat exchanger includes a plurality of heat exchange tubes, which are arranged circumferentially along the outer cylinder. One end of each heat exchange tube is connected to the water inlet, and the other end is connected to the water outlet. The burner includes a burner flange, a burner body, and a heat insulation layer. The burner flange is fixedly connected to the burner body. The burner body is placed inside the outer cylinder. The burner flange rests on the end of the outer cylinder and is detachably connected to the outer cylinder. The heat insulation layer is sandwiched between the burner body and the outer cylinder. The adjusting component is a circular shim, which is sandwiched between the end of the outer cylinder and the burner flange. The burner body has a protruding structure at the end away from the burner flange, which is flared. A concave structure is provided at the corresponding position inside the water-cooling jacket, and there is a gap between the concave structure and the protruding structure. The thickness of the circular shim is adjustable, so that the size of the gap between the concave structure and the protruding structure can be adjusted, thereby adjusting the heating and power supply ratio.

2. The combustion chamber for a Stirling engine-based combined heat and power system according to claim 1, characterized in that, The air outlet is provided in multiple ways, and the multiple air outlets are arranged at intervals along the circumference of the outer cylinder. An exhaust ring pipe is fixed on the outer wall of the outer cylinder, and the internal space of the exhaust ring pipe forms a flue gas collection chamber. The plurality of exhaust holes are respectively connected to the flue gas collection chamber. The exhaust ring pipe is also provided with an air outlet, which is connected to the flue gas collection chamber and is used to connect to an external exhaust pipe.

3. The combustion chamber for a Stirling engine-based combined heat and power system according to claim 1, characterized in that, Several heat exchange tubes are arranged in two rows along the circumference of the outer cylinder. Several heat exchange fins are fixedly connected between two adjacent heat exchange tubes. The heat exchange fins adopt a fan-shaped structure and are evenly distributed between the heat exchange tubes.

4. The combustion chamber for a Stirling engine-based combined heat and power system according to claim 1, characterized in that, The water-cooled jacket is provided with a high-temperature flue gas flow channel and a cooling water flow channel. The high-temperature flue gas flow channel is used to allow high-temperature flue gas to flow, and the cooling water flow channel is used to allow cooling water to flow. The insulation layer has a ring structure and is sandwiched between the outer cylinder and the Stirling engine fuselage.

5. The combustion chamber for a Stirling engine-based combined heat and power system according to claim 1, characterized in that, The burner flange is provided with a main water outlet interface, and the position of the main water outlet interface corresponds to the position of the water outlet of the outer cylinder. The burner body is provided with a number of swirl vanes and a number of swirl holes. The number of swirl vanes surround the central axis of the burner body, and the number of swirl holes are evenly arranged along the circumference of the burner body. The burner body has an internal cavity, and the burner body has an external cavity between its inner and outer walls.

6. A method for implementing a combustion chamber in a Stirling engine-based combined heat and power system as described in any one of claims 1-5, characterized in that, Including the following steps: A portion of the combustible mixture is fully premixed by the swirl vanes and injected into the burner cavity for full combustion. The other portion of the combustible mixture enters the outer cavity of the combustion chamber after passing through the swirl holes, and then enters the inner cavity of the combustion chamber for combustion, generating high-temperature flue gas. A portion of the high-temperature flue gas flows into the Stirling engine heater through the flue gas flow channel of the water-cooled jacket. After absorbing heat, the heater drives the motor to generate electricity and then flows back to the heat exchanger. Another portion of the high-temperature flue gas flows directly into the heat exchanger through the gap between the burner and the water-cooled jacket. The two portions of high-temperature flue gas heat the cooling water in the heat exchanger. The flue gas after heat exchange enters the flue gas collection chamber and is then discharged through the outlet. Cooling water enters the heat exchanger through the inlet and exchanges heat with the high-temperature flue gas outside the heat exchanger. The hot water after heat exchange is discharged through the outlet and enters the heating system. The adjustment component adjusts the gap between the burner and the water-cooled jacket, thereby adjusting the ratio of the flow of high-temperature flue gas generated by the burner into the Stirling engine heater and directly into the heat exchanger, thus achieving active adjustment of the ratio of heating and power supply in the combined heat and power system.

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