A device that integrates the functions of a gas stove, air conditioner and water heater

Abstract

The present invention discloses a device that integrates the functions of a gas stove, an air conditioner, and a water heater, comprising a motor, a clutch, an air compressor, an expander, a fuel injector, a steam generator, a three-way valve, an air inlet, a combustion chamber, a flame outlet, a heat exchanger, a water heater, a stove, a heat exchange tube in the water heater, a heat exchange tube in the steam generator, a condenser, a rotating shaft, a working fluid delivery pipe, an indoor radiator, a fan, a water inlet, a water outlet, a transmission line, a battery, a working fluid pump, a flame channel, and a combustion chamber wall. Compared with the prior art, the present invention has the following advantages: a simple overall structure; by using an expander or a steam turbine to increase the pressure of the air compressor and the temperature of the combustion chamber, the gas stove, air conditioner, and water heater are combined into one; the heat generated by natural gas combustion is comprehensively utilized to improve energy efficiency; and the present invention has wide applicability and is easy to promote.

Description

Technical Field

[0001] The present invention relates to the field of heating, and in particular to a device integrating the functions of a gas stove, an air conditioner and a water heater. Background Art

[0002] Gas stoves, water heaters, and other combustion appliances consume large amounts of natural gas and other energy. Existing combustion systems are inefficient, resulting in significant waste of flue gas and stovetop heat. Improving the efficiency of these appliances can reduce energy consumption, lower carbon dioxide emissions, and protect the environment.

[0003] Therefore, it is imperative to design a device that integrates the functions of a gas stove, an air conditioner, and a water heater. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing gas stoves use the natural mixing of air and natural gas and then ignite and burn. Due to the narrow indoor space and poor ventilation leading to insufficient oxygen and other reasons, the natural gas combustion is incomplete, resulting in yellow flames and excessive carbon monoxide. In addition, the waste heat in the stove and flue gas is discharged into the outdoor air, resulting in energy waste and low energy utilization efficiency.

[0005] To solve the above technical problems, the present invention provides a technical solution as follows: an apparatus integrating the functions of a gas stove, an air conditioner and a water heater, comprising a motor, a clutch, an air compressor, an expander, a fuel injector, a steam generator, a three-way valve, an air inlet, a combustion chamber, a flame outlet, a heat exchanger, a water heater, a stove, a heat exchange tube in the water heater, a heat exchange tube in the steam generator, a condenser, a rotating shaft, a working fluid delivery pipe, an indoor radiator, a fan, a water inlet, a water outlet, a transmission line, a battery, a working fluid pump, a flame channel and a combustion chamber wall, wherein the combustion chamber is arranged in the steam generator, a steam outlet is provided at the upper part of the steam generator, the steam outlet is connected to the inlet of the working fluid delivery pipe, the outlet of the working fluid delivery pipe is connected to the inlet of the expander, the working fluid outlet of the expander is connected to the condenser, and the condenser is connected to the steam generator through the air compressor; the rotating shaft of the expander is connected to the motor through the clutch, and the motor is connected to the battery through the transmission line;

[0006] The rotor of the expander is coaxially connected to the rotor of the air compressor through a clutch, and the outlet of the air compressor is connected to the inlet of the combustion chamber. The working fluid in the steam generator can be pressurized carbon dioxide, Freon, R-14, R-22 and organic working fluid. The working fluid circulation in the steam generator adopts the Rankine cycle.

[0007] The steam generator is provided with multiple steam generator heat exchange tubes, and the water heater is provided with multiple water heater heat exchange tubes. The diameters of the water heater heat exchange tubes and the steam generator heat exchange tubes are matched and welded at the interface to form an integral pipe. Flame channels are laid in the water heater heat exchange tubes and the steam generator heat exchange tubes, so that the high-temperature gas in the combustion chamber passes through the combustion chamber, the flame channel in the steam generator heat exchange tubes and the flame channel in the water heater heat exchange tubes to reach the flame outlet on the stove, thereby heating the kitchen utensils on the stove; the high-temperature gas in the combustion chamber heats the internal circulating working medium through the combustion chamber wall and the steam generator heat exchange tubes in the steam generator.

[0008] The advantages of the present invention compared with the existing technology are: the overall structure is simple, the pressure of the air compressor is increased by using an expander or a steam turbine to increase the temperature of the combustion chamber, the gas stove, air conditioner and water heater are combined into one, the heat generated by the combustion of natural gas is comprehensively utilized, the energy utilization efficiency is improved, the applicability is wide, and it is easy to promote.

[0009] As an improvement, four three-way valves are provided on the working fluid delivery pipe. The inlet of the working fluid delivery pipe is connected to the inlet of the heat exchanger through a three-way valve, and the outlet of the heat exchanger is connected to the inlet of the expander through two three-way valves. The heat exchanger is located inside the water heater.

[0010] The inlet of the working medium delivery pipe is connected to another three-way valve through another valve port of the three-way valve and is connected to the indoor radiator. The indoor radiator is connected to the inlet of the expander through a three-way valve.

[0011] As an improvement, the heat exchanger outlet can also be connected to the indoor radiator inlet through two three-way valves;

[0012] The inlet of the working medium delivery pipe can also be connected to the inlet of the expander through four three-way valves.

[0013] As an improvement, a condenser is provided on the pipeline connecting the expander outlet and the working fluid pump, and the outlet of the working fluid pump is connected to the return liquid port of the steam generator; the cold source of the condenser comes from the water at the water inlet, the water inlet is connected to the condenser through the working fluid pump, the condenser is connected to the inlet of the water heater through a pipeline, and the water heater is provided with a water outlet for discharging hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of a device that integrates the functions of a gas stove, air conditioner and water heater.

[0015] Figure 2 It is a structural diagram of embodiment 1.

[0016] Figure 3 It is a structural diagram of embodiment 2.

[0017] As shown in the figure: 1. Electric motor, 2. Clutch, 3. Air compressor, 4. Expander, 5. Fuel injector, 6. Steam generator, 7. Three-way valve, 8. Air inlet, 9. Combustion chamber, 10. Flame outlet, 11. Heat exchanger, 12. Water heater, 13. Stove, 14. Heat exchange tube in water heater, 15. Heat exchange tube in steam generator, 16. Condenser, 17. Rotating shaft, 18. Working fluid delivery pipe, 19. Indoor radiator, 20. Fan, 21. Water inlet, 22. Water outlet, 23. Transmission line, 24. Battery, 25. Working fluid pump, 26. Flame channel, 27. Combustion chamber wall. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings.

[0019] The present invention is implemented as follows: a device integrating the functions of a gas stove, an air conditioner, and a water heater, including a motor 1, a clutch 2, an air compressor 3, an expander 4, a fuel injector 5, a steam generator 6, a three-way valve 7, an air inlet 8, a combustion chamber 9, a flame outlet 10, a heat exchanger 11, a water heater 12, a stove 13, a heat exchange pipe in the water heater 14, a heat exchange pipe in the steam generator 15, a condenser 16, a rotating shaft 17, a working medium delivery pipe 18, an indoor radiator 19, a fan 20, a water inlet 21, a water outlet 22, and a transmission line 23. , a battery 24, a working fluid pump 25, a flame channel 26 and a combustion chamber wall 27, the combustion chamber 9 is arranged in the steam generator 6, a steam outlet is provided on the upper part of the steam generator 6, the steam outlet is connected to the inlet of the working fluid delivery pipe 18, the outlet of the working fluid delivery pipe 18 is connected to the inlet of the expander 4, the working fluid outlet of the expander 4 is connected to the condenser 16, and the condenser 16 is connected to the steam generator 6 through the air compressor 3; the rotating shaft 17 of the expander 4 is connected to the motor 1 through the clutch 2, and the motor 1 is connected to the battery 24 through the transmission line 23;

[0020] The rotor of the expander 4 is coaxially connected to the rotor of the air compressor 3 via the clutch 2, and the outlet of the air compressor 3 is connected to the inlet of the combustion chamber 9; the working fluid in the steam generator 6 can be pressurized carbon dioxide, Freon, R-14, R-22, and an organic working fluid; the working fluid circulation in the steam generator 6 adopts a Rankine cycle;

[0021] The steam generator 6 is provided with a plurality of steam generator internal heat exchange tubes 15, and the water heater 12 is provided with a plurality of water heater internal heat exchange tubes 14. The diameters of the water heater internal heat exchange tubes 14 and the steam generator internal heat exchange tubes 15 are adapted and welded at the interface to form an integral pipe. Flame channels 26 are laid in the water heater internal heat exchange tubes 14 and the steam generator internal heat exchange tubes 15, so that the high-temperature gas in the combustion chamber 9 passes through the combustion chamber 9, the flame channel 26 in the steam generator internal heat exchange tubes 15 and the flame channel 26 in the water heater internal heat exchange tubes 14 to reach the flame outlet 10 on the stove, thereby heating the kitchen utensils on the stove; the high-temperature gas in the combustion chamber 9 heats the internal circulating medium through the combustion chamber wall 27 and the steam generator internal heat exchange tubes 15 in the steam generator 6.

[0022] The working medium delivery pipe 18 is provided with four three-way valves 7. The inlet of the working medium delivery pipe 18 is connected to the inlet of the heat exchanger 11 through one three-way valve 7. The outlet of the heat exchanger 11 is connected to the inlet of the expander 4 through two three-way valves 7. The heat exchanger 11 is located in the water heater 12.

[0023] The inlet of the working medium delivery pipe 18 is connected to another three-way valve 7 through another valve port of the three-way valve 7 and is connected to the indoor radiator 19. The indoor radiator 19 is connected to the inlet of the expander 4 through a three-way valve 7.

[0024] The outlet of the heat exchanger 11 can also be connected to the inlet of the indoor radiator 19 through two three-way valves 7;

[0025] The working medium delivery pipe inlet 18 can also be connected to the inlet of the expander 4 through four three-way valves 7.

[0026] A condenser 16 is provided on the pipeline connecting the outlet of the expander 4 and the working fluid pump 25, and the outlet of the working fluid pump 25 is connected to the return liquid port of the steam generator 6; the cold source of the condenser 16 comes from the water at the water inlet 21, and the water inlet 21 is connected to the condenser 16 through the working fluid pump 25. The condenser 16 is connected to the inlet of the water heater 12 through a pipeline, and the water heater 12 is provided with a water outlet 22 for discharging hot water.

[0027] Working principle of the present invention:

[0028] Example 1: Figure 2As shown, the device includes a motor 1, a clutch 2, an air compressor 3, an expander 4, a fuel injector 5, a steam generator 6, a three-way valve 7, an air inlet 8, a combustion chamber 9, a flame outlet 10, a heat exchanger 11, a water heater 12, a stove 13, a heat exchange pipe in the water heater 14, a heat exchange pipe in the steam generator 15, a condenser 16, a rotating shaft 17, a working fluid delivery pipe 18, an indoor radiator 19, a fan 20, a water inlet 21, a water outlet 22, a transmission line 23, a battery 24, and a working fluid pump 2. 5. Flame channel 26, combustion chamber wall 27. Combustion chamber 9 is located within steam generator 6. A steam outlet is provided at the top of steam generator 6, connected to the inlet of working fluid delivery pipe 18. The outlet of working fluid delivery pipe 18 is connected to the inlet of expander 4. The working fluid outlet of expander 4 is connected to condenser 16, which is connected to steam generator 6 via a working fluid pump 25. The rotor of expander 4 is connected to motor 1 via a clutch, and motor 1 is connected to battery 24 via power line 23. The rotor of expander 4 is coaxially connected to the rotor of air compressor 3 via another clutch 2. The outlet of air compressor 3 is connected to the inlet of combustion chamber 9. The working fluid within steam generator 6 can be water, Freon, R-14, R-22, or an organic working fluid. The working fluid circulation within steam generator 6 adopts a Rankine cycle.

[0029] How to run:

[0030] 1. Startup Mode

[0031] The clutch 2-1 is engaged, the clutch 2-2 is engaged, the battery 24 (or external power supply) transmits power to the motor 1, the motor 1 drives the air compressor 3 to compress the air, the fuel injector 5 injects fuel into the combustion chamber 9 and ignites, and the device is started.

[0032] 2. Steam turbine 4 boost + motor 1 boost mode

[0033] After the device is started and runs for a period of time, the circulating working fluid heated in the steam generator 6 passes through the inlet of the working fluid delivery pipe 18, sequentially passes through the three-way valve 7-1, three-way valve 7-3, three-way valve 7-2, and three-way valve 7-4, and reaches the inlet of the steam turbine 4, driving the steam turbine 4 to rotate. The clutch 2-1 is engaged, the clutch 2-2 is engaged, and the battery 24 supplies power to the motor 1. The motor 1 and the steam turbine 4 work together to drive the air compressor 3 to compress air. After the working fluid expands and does work in the steam turbine 4, it reaches the condenser 16 through the outlet of the steam turbine 4 for condensation, and is then delivered to the liquid return port of the steam generator 6 by the working fluid pump 25-2, starting the next cycle.

[0034] 3. Steam Turbine 4 Boosting Mode

[0035] After the device is started and runs for a period of time, the circulating working medium heated in the steam generator 6 passes through the inlet of the working medium delivery pipe 18, sequentially passes through the three-way valve 7-1, three-way valve 7-3, three-way valve 7-2, and three-way valve 7-4, and reaches the inlet of the steam turbine 4, driving the steam turbine 4 to rotate. The clutch 2-1 is disengaged, and the clutch 2-2 is engaged. The steam turbine 4 performs work to drive the air compressor 3 to compress the air. After the working medium expands and performs work in the steam turbine 4, it reaches the condenser 16 through the outlet of the steam turbine 4 for condensation, and is then delivered to the liquid return port of the steam generator 6 by the working medium pump 25-2, starting the next cycle.

[0036] 4. Steam turbine 4 boost + circulating working medium hot water mode

[0037] After the device is started and runs for a period of time, the heated circulating medium in the steam generator 6 reaches the three-way valve 7-1 through the inlet of the medium delivery pipe 18. The three-way valve 7-1 is opened in the direction of the heat exchanger 11 and closed in the direction of the indoor radiator 19. The circulating medium exchanges heat with the water in the water heater 12 at the heat exchanger 11 to heat the water in the water heater 12. Then, the circulating medium passes through the outlet of the heat exchanger 11 through the three-way valve 7-2 and then through the three-way valve 7-4 to reach the inlet of the steam turbine 4 and drive the steam turbine 4 to rotate. The clutch 2-1 is disengaged and the clutch 2-2 is engaged. The steam turbine 4 performs work to drive the air compressor 3 to compress the air. After the working medium expands and performs work in the steam turbine 4, it reaches the condenser 16 through the outlet of the steam turbine 4 for condensation and is then sent to the liquid return port of the steam generator 6 by the working medium pump 25-2 to start the next cycle.

[0038] 5. Steam turbine 4 boost + indoor heating mode

[0039] After the device is started and runs for a period of time, the heated circulating medium in the steam generator 6 reaches the three-way valve 7-1 through the inlet of the medium delivery pipe 18. The three-way valve 7-1 is closed in the direction of the heat exchanger 11 and opened in the direction of the indoor radiator 19. The circulating medium passes through the three-way valve 7-1 and the three-way valve 7-3 to reach the indoor radiator 19 to heat the indoor air. The fan 20 blows the warm air around the indoor radiator 19 to achieve indoor heating. Then, the circulating medium passes through the three-way valve 7-4 to reach the inlet of the steam turbine 4 and drives the steam turbine 4 to rotate. The clutch 2-1 is disengaged and the clutch 2-2 is engaged. The steam turbine 4 performs work to drive the air compressor 3 to compress the air. After the working medium expands and performs work in the steam turbine 4, it reaches the condenser 16 through the outlet of the steam turbine 4 for condensation. It is then sent to the liquid return port of the steam generator 6 by the working medium pump 25-2 to start the next cycle.

[0040] 6. Cooling mode

[0041] When the air compressor 3 and the fuel injector 5 are not working, the combustion chamber 9 is not ignited, and the water heater 12 is filled with cold water; the working medium pump 25-2 is used as the power, and the circulating working medium that is compressed and heated to generate a temperature rise in the steam generator 6 reaches the three-way valve 7-1 through the inlet of the working medium delivery pipe 18. The three-way valve 7-1 is opened in the direction leading to the heat exchanger 11 and closed in the direction leading to the indoor radiator 19. The circulating working medium exchanges heat with the cold water in the water heater 12 at the heat exchanger 11, and the temperature of the circulating working medium decreases. Then the circulating working medium passes through the outlet of the heat exchanger 11 through the three-way valve 7-2, and then through the three-way valve 7-3 to the The circulating medium reaches the inlet of the indoor radiator 19. When the temperature of the circulating medium in the indoor radiator 19 is lower than the indoor temperature, the air around the indoor radiator 19 is cooled, and the fan 20 blows the surrounding air to realize indoor cooling. After the circulating medium exchanges heat with the air in the indoor radiator 19, it reaches the inlet of the turbine 4 through the three-way valve 7-4 and drives the turbine 4 to rotate. The clutch 2-1 is disconnected, the clutch 2-2 is disconnected, and the medium expands in the expander 4 and reaches the condenser 16 for condensation through the outlet of the expander 4. It is then sent to the liquid return port of the steam generator 6 by the working medium pump 25-2 to start the next cycle.

[0042] Example 2:

[0043] like Figure 3 As shown, the device includes a motor 1, a clutch 2, an air compressor 3, an expander 4, a fuel injector 5, a steam generator 6, a three-way valve 7, an air inlet 8, a combustion chamber 9, a flame outlet 10, a heat exchanger 11, a water heater 12, a stove 13, a heat exchange pipe in the water heater 14, a heat exchange pipe in the steam generator 15, a cooler, a rotating shaft 17, a working fluid delivery pipe 18, an indoor radiator 19, a fan 20, a water inlet 21, a water outlet 22, a transmission line 23, a battery 24, and a working fluid pump. 25. Flame channel 26. Combustion chamber wall 27. Combustion chamber 9 is located within steam generator 6. A steam outlet is provided at the top of steam generator 6. The steam outlet is connected to the inlet of working medium delivery pipe 18. The outlet of working medium delivery pipe 18 is connected to the inlet of expander 4. The working medium outlet of expander 4 is connected to a cooler, which is connected to steam generator 6 via an air compressor 3. The rotor of expander 4 is connected to motor 1 via a clutch, and motor 1 is connected to battery 24 via a power line 23. The rotor of expander 4 is coaxially connected to the rotor of air compressor 3 via another clutch 2. The outlet of air compressor 3 is connected to the inlet of combustion chamber 9. The working medium within steam generator 6 can be water, Freon, R-14, R-22, or an organic working medium. The working medium circulation within steam generator 6 adopts a closed Brayton cycle.

[0044] A cooler is provided on the pipeline connecting the outlet of the expander 4 and the inlet of the air compressor 3. The outlet of the air compressor 3 and the return liquid port of the steam generator 6 are connected. The cold source of the cooler comes from the water at the water inlet 21. The water inlet 21 is connected to the cooler through a working fluid pump 25. The cooler is connected to the inlet of the water heater 12 through a pipeline. The water heater 12 is provided with a water outlet 22 to discharge hot water.

[0045] Here’s how to run it:

[0046] 1. Startup Mode

[0047] The clutch 2-1 is engaged, the clutch 2-2 is engaged, the battery 24 (or an external power source) transmits power to the motor 1, the motor 1 drives the compressor 3-1 to work and drives the air compressor 3-2 to compress air, the fuel injector 5 injects fuel into the combustion chamber 9 and ignites, and the device is started.

[0048] 2. Expander 4 boost + motor 1 boost mode

[0049] After the device is started and runs for a period of time, the circulating working fluid heated in the steam generator 6 passes through the inlet of the working fluid delivery pipe 18, sequentially passes through the three-way valve 7-1, three-way valve 7-3, three-way valve 7-2, and three-way valve 7-4, reaches the inlet of the expander 4, and drives the expander 4 to rotate. The clutch 2-1 is engaged, the clutch 2-2 is engaged, and the battery 24 supplies power to the motor 1. The motor 1 and the steam turbine 4 work together to drive the compressor 3-1 to work and drive the air compressor 3-2 to compress air. After the working fluid expands and works in the expander 4, it reaches the cooler 16 for cooling through the outlet of the expander 4, and is then delivered by the compressor 3-1 to the liquid return port of the steam generator 6, and the next cycle begins.

[0050] 3. Expander 4 boost mode

[0051] After the device is started and runs for a period of time, the circulating working fluid heated in the steam generator 6 passes through the inlet of the working fluid delivery pipe 18, sequentially passes through the three-way valve 7-1, three-way valve 7-3, three-way valve 7-2, and three-way valve 7-4, reaches the inlet of the expander 4, and drives the expander 4 to rotate. The clutch 2-1 is disengaged, and the clutch 2-2 is engaged. The steam turbine 4 performs work to drive the compressor 3-1 to work and drive the air compressor 3-2 to compress air. After the working fluid expands and performs work in the expander 4, it reaches the cooler 16 for cooling through the outlet of the expander 4, and is then delivered by the compressor 3-1 to the liquid return port of the steam generator 6, and the next cycle begins.

[0052] 4. Expander 4 pressurization + circulating working medium hot water mode

[0053] After the device is started and runs for a period of time, the heated circulating medium in the steam generator 6 reaches the three-way valve 7-1 through the inlet of the medium delivery pipe 18. The three-way valve 7-1 is opened in the direction leading to the heat exchanger 11 and closed in the direction leading to the indoor radiator 19. The circulating medium exchanges heat with the water in the water heater 12 at the heat exchanger 11 to heat the water in the water heater 12. Then, the circulating medium passes through the outlet of the heat exchanger 11 through the three-way valve 7-2 and then through the three-way valve 7-4 to reach the inlet of the expander 4 and drive the expander 4 to rotate. The clutch 2-1 is disengaged and the clutch 2-2 is engaged. The steam turbine 4 performs work to drive the compressor 3-1 to work and drive the air compressor 3-2 to compress air. After the working medium expands and performs work in the expander 4, it reaches the cooler 16 through the outlet of the expander 4 for cooling. Then, it is sent to the liquid return port of the steam generator 6 by the compressor 3-1 to start the next cycle.

[0054] 5. Expander 4 boost + indoor heating mode

[0055] After the device is started and runs for a period of time, the heated circulating medium in the steam generator 6 reaches the three-way valve 7-1 through the inlet of the medium delivery pipe 18. The three-way valve 7-1 is closed in the direction to the heat exchanger 11 and opened in the direction to the indoor radiator 19. The circulating medium passes through the three-way valve 7-1 and the three-way valve 7-3 to reach the indoor radiator 19 to heat the indoor air. The fan 20 blows the warm air around the indoor radiator 19 to achieve indoor heating. Then, the circulating medium passes through the three-way valve 7-4 to reach the inlet of the expander 4 and drives the expander 4 to rotate. The clutch 2-1 is disengaged and the clutch 2-2 is engaged. The steam turbine 4 performs work to drive the compressor 3-1 to work and drive the air compressor 3-2 to compress air. After the working medium expands and performs work in the expander 4, it reaches the cooler 16 through the outlet of the expander 4 for cooling. Then, it is sent to the liquid return port of the steam generator 6 by the compressor 3-1 to start the next cycle.

[0056] 6. Cooling mode

[0057] When the clutch 2-2 is disconnected, the air compressor 3-2 and the fuel injector 5 do not work, the combustion chamber does not ignite, and the water heater contains cold water; the clutch 2-1 is engaged, the battery 24 (or external power supply) transmits power to the motor 1, and the motor 1 drives the compressor 3-1 to work. The circulating working fluid in the steam generator 6 that is compressed and heated to generate a temperature rise reaches the three-way valve 7-1 through the inlet of the working fluid delivery pipe 18. The three-way valve 7-1 is opened in the direction of the heat exchanger 11 and closed in the direction of the indoor radiator 19. The circulating working fluid exchanges heat with the cold water in the water heater 12 at the heat exchanger 11, and the circulating working fluid temperature drops. Then the circulating working fluid passes through the outlet of the heat exchanger 11 through the three-way valve 7-1. Valve 7-2, and then through the three-way valve 7-3 to reach the inlet of the indoor radiator 19. When the temperature of the circulating working medium in the indoor radiator 19 is lower than the indoor temperature, the air around the indoor radiator 19 is cooled, and the fan 20 blows the surrounding air to achieve indoor cooling. After the circulating working medium exchanges heat with the air in the indoor radiator 19, it reaches the inlet of the expander 4 through the three-way valve 7-4 and drives the expander 4 to rotate. The steam turbine 4 and the motor 1 work together to drive the compressor 3-1 to work. After the working medium expands and does work in the expander 4, it reaches the cooler 16 through the outlet of the expander 4 for cooling, and is then sent by the compressor 3-1 to the liquid return port of the steam generator 6 to start the next cycle.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0059] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0060] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A device integrating the functions of a gas stove, an air conditioner and a water heater, comprising a motor (1), a clutch (2), an air compressor (3), an expander (4), a fuel injector (5), a steam generator (6), a three-way valve (7), an air inlet (8), a combustion chamber (9), a flame outlet (10), a heat exchanger (11), a water heater (12), a stove (13), a heat exchange pipe in the water heater (14), a heat exchange pipe in the steam generator (15), a condenser (16), a rotating shaft (17), a working medium delivery pipe (18), an indoor radiator (19), a fan (20), a water inlet (21), a water outlet (22), a transmission line (23), a battery (24), a working medium pump (25), a flame channel (26) and a combustion chamber wall (27), characterized in that: The combustion chamber (9) is arranged in the steam generator (6). The upper part of the steam generator (6) is provided with a steam outlet, the steam outlet is connected to the inlet of the working medium delivery pipe (18), the outlet of the working medium delivery pipe (18) is connected to the inlet of the expander (4), the working medium outlet of the expander (4) is connected to the condenser (16), and the condenser (16) is connected to the steam generator (6) through the air compressor (3); the rotating shaft (17) of the expander (4) is connected to the motor (1) through the clutch (2), and the motor (1) is connected to the battery (24) through the transmission line (23); The rotor of the expander (4) is coaxially connected to the rotor of the air compressor (3) through the clutch (2), and the outlet of the air compressor (3) is connected to the inlet of the combustion chamber (9); the organic working medium in the steam generator (6) adopts Freon; the working medium circulation in the steam generator (6) adopts the Rankine cycle; a plurality of steam generator internal heat exchange tubes (15) are provided in the steam generator (6), and a plurality of water heater internal heat exchange tubes (14) are provided in the water heater (12); the diameters of the water heater internal heat exchange tubes (14) and the steam generator internal heat exchange tubes (15) are adapted and welded at the interface. The heat exchange tube (14) in the water heater and the heat exchange tube (15) in the steam generator are both provided with flame channels (26), so that the high-temperature gas in the combustion chamber (9) passes through the combustion chamber (9), the flame channel (26) in the heat exchange tube (15) in the steam generator and the flame channel (26) in the heat exchange tube (14) in the water heater to reach the flame outlet (10) on the stove, thereby heating the kitchen utensils on the stove; the high-temperature gas in the combustion chamber (9) passes through the combustion chamber wall (27) and the heat exchange tube (15) in the steam generator in the steam generator to heat the internal The working medium delivery pipe (18) is provided with four three-way valves (7), the inlet of the working medium delivery pipe (18) is connected to the inlet of the heat exchanger (11) through a three-way valve (7), and the outlet of the heat exchanger (11) is connected to the inlet of the expander (4) through two three-way valves (7), and the heat exchanger (11) is located in the water heater (12); the inlet of the working medium delivery pipe (18) is connected to another three-way valve (7) through another valve port of the three-way valve (7) and is connected to the indoor radiator (19), and the indoor radiator (19) is connected to the inlet of the expander (4) through a three-way valve (7).

2. The device according to claim 1, which integrates the functions of a gas stove, an air conditioner and a water heater, is characterized in that: The outlet of the heat exchanger (11) is also connected to the inlet of the indoor radiator (19) through two three-way valves (7); the inlet (18) of the working medium delivery pipe is also connected to the inlet of the expander (4) through four three-way valves (7).

3. The device according to claim 1, which integrates the functions of a gas stove, an air conditioner and a water heater, is characterized in that: A condenser (16) is provided on a pipeline connecting the outlet of the expander (4) and the working fluid pump (25), and the outlet of the working fluid pump (25) is connected to the liquid return port of the steam generator (6); the cold source of the condenser (16) comes from water at the water inlet (21), and the water inlet (21) is connected to the condenser (16) through the working fluid pump (25). The condenser (16) is connected to the inlet of the water heater (12) through a pipeline, and the water heater (12) is provided with a water outlet (22) for discharging hot water.

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