Household heat and oxygen supply system and operation method

Abstract

The invention discloses a household heat and oxygen supply system and an operation method. The system comprises a photovoltaic power generation device (1), a power supply and distribution device (2), a water electrolysis hydrogen and oxygen production device (3), an oxygen gas bag (4), an oxygen distributor (5), a dispersion type oxygen supply device (6), an environment oxygen concentration controller (7), a hydrogen gas bag (8), a pressure regulator (9), a proportional controller (10), a natural gas pipe network (11), an environment temperature controller (12), a gas fireplace (13) and the like. According to the system, hydrogen prepared by photovoltaic power and natural gas are mixed and combusted to supply heat, the consumption of the natural gas is reduced, the energy consumption cost is saved, meanwhile, the carbon emission is effectively reduced, and the system is cleaner. By-produced oxygen in the water electrolysis hydrogen production process can be collected and utilized, the oxygen concentration in a room is increased, and the living comfort is improved; and meanwhile, a part of oxygen is introduced into the gas fireplace to form an oxygen-enriched environment, so that the combustion efficiency of hydrogen and natural gas is improved.

Description

[0001] Technical Field This invention belongs to the field of heating and oxygen supply technology, specifically a household heating and oxygen supply system and its operation method.

[0002] Background Technology Currently, residential heating and oxygen supply systems face numerous challenges in high-altitude areas. Traditional heating methods mainly rely on natural gas, electricity, or centralized heating systems. However, in high-altitude regions, due to remote locations, limited energy supply, insufficient natural gas pipeline coverage, and unstable electricity supply, heating costs are high and the heating effect is difficult to guarantee. Regarding oxygen supply, common oxygen supply equipment such as oxygen cylinders and oxygen concentrators present many inconveniences. Oxygen cylinders need to be replaced regularly, and storage and transportation pose safety hazards; while oxygen concentrators can provide continuous oxygen supply, they consume a lot of energy, and their operational stability in high-altitude areas is greatly affected by the environment.

[0003] Existing household heating and oxygen supply systems also have certain limitations. Some systems use only a single energy source for heating, such as relying solely on natural gas combustion. This not only consumes large amounts of natural gas, leading to high energy costs, but also generates significant carbon emissions, failing to meet environmental protection requirements. Purely electric heating suffers from poor reliability in high-altitude areas where power supply is unstable. Regarding oxygen supply, some systems do not fully utilize renewable resources, failing to achieve effective oxygen collection and utilization, resulting in poor economic efficiency and sustainability, and making it difficult to meet the long-term, stable oxygen supply needs of residents in high-altitude areas.

[0004] Furthermore, existing household heating and oxygen supply systems lack a high level of intelligence, failing to make precise and real-time adjustments based on actual indoor environmental parameters such as temperature and oxygen concentration. This makes it difficult to achieve constant temperature heating and stable oxygen supply, thus failing to provide a comfortable and healthy indoor environment for residents in high-altitude areas. In terms of combustion efficiency, traditional combustion equipment suffers from low efficiency and inefficient energy utilization, failing to effectively meet the needs of high-altitude residents for efficient, energy-saving, and environmentally friendly heating and oxygen supply. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems existing in the prior art by providing a household heating and oxygen supply system and its operation method. This household heating and oxygen supply system uses hydrogen produced by photovoltaic power to mix and burn natural gas for heating, which can save natural gas consumption, reduce energy costs, and effectively reduce carbon emissions, making it cleaner than traditional methods that rely solely on natural gas for heating. Oxygen, a byproduct of the hydrogen production process through water electrolysis, can be collected and utilized to increase the oxygen concentration in the room and improve living comfort. Furthermore, a portion of the oxygen is connected to the gas fireplace to create an oxygen-rich environment, which helps improve the combustion efficiency of hydrogen and natural gas. The system can monitor the indoor ambient temperature in real time, determine the room's heating demand based on parameters such as ambient temperature and target temperature, and control and adjust the flow rate of hydrogen and natural gas through a proportional controller to achieve a constant room temperature, making it suitable for the heating and oxygen needs of high-altitude areas.

[0006] To achieve the objectives of this invention, the specific technical solution adopted is as follows: A household heating and oxygen supply system includes a photovoltaic power generation device, a power supply and distribution device, a water electrolysis hydrogen and oxygen production device, an oxygen bag, an oxygen distributor, a diffused oxygen supply device, an ambient oxygen concentration controller, a hydrogen bag, a pressure regulator, a proportional controller, a natural gas pipeline network, an ambient temperature controller, and a gas fireplace. Photovoltaic power generation devices are connected to power supply and distribution equipment via DC cables; The power supply and distribution equipment is connected to the water electrolysis hydrogen and oxygen production unit via AC cables; The electrolytic hydrogen and oxygen production unit is connected to the oxygen gasbag and the hydrogen gasbag respectively; the oxygen gasbag is connected to the oxygen distributor; the outlet of the hydrogen gasbag is connected to the pressure regulator through a hydrogen pipeline. The oxygen distributor is connected to the diffused oxygen supply device via indoor oxygen supply pipes; it is also connected to the gas fireplace via combustion-supporting pipes. The ambient oxygen concentration controller is connected to the oxygen distributor via an oxygen concentration control cable. The pressure regulator is connected to the proportional controller; The natural gas pipeline network and ambient temperature controller are both connected to the proportional controller; The proportional controller is connected to the gas fireplace.

[0007] Furthermore, in the aforementioned household heating and oxygen supply system, the photovoltaic power generation device is equipped with several photovoltaic modules, which are connected to each other via DC cables to form several photovoltaic arrays; the photovoltaic modules generate electricity using the energy of solar radiation, and the generated electricity is connected to the power distribution device via DC cables.

[0008] Furthermore, in the aforementioned household heating and oxygen supply system, the power distribution device is equipped with a DC / DC converter, an AC / DC converter, and an AC / AC converter, which have AC output functionality.

[0009] Furthermore, in the aforementioned household heating and oxygen supply system, the water electrolysis hydrogen and oxygen production device is equipped with an electrolytic cell, a gas-liquid treatment device, and auxiliary equipment. It receives alternating current from the power supply and distribution device and performs an electrochemical reaction to decompose hydrogen and oxygen from water. The produced hydrogen is transported to a hydrogen gas bag for storage via a hydrogen pipeline, and the oxygen produced by the water electrolysis hydrogen and oxygen production device is transported to an oxygen gas bag for storage via an oxygen pipeline.

[0010] Furthermore, in the aforementioned household heating and oxygen supply system, the oxygen distributor includes several pressure regulating valves and flow control valves, which can reduce the oxygen pressure and deliver it to the diffused oxygen supply device through the indoor oxygen supply pipeline to supply oxygen to the indoor room; at the same time, it can also adjust the oxygen supply flow rate according to the instructions issued by the ambient oxygen concentration controller.

[0011] Furthermore, in the aforementioned household heating and oxygen supply system, the pressure regulator consists of several sets of pressure regulating valves, which can regulate the hydrogen pressure to a suitable range; the hydrogen after pressure regulation is further connected to the proportional controller.

[0012] Furthermore, in the aforementioned household heating and oxygen supply system, the natural gas pipeline network is connected to the proportional controller via a natural gas pipeline; the ambient temperature controller is connected to the proportional controller via an ambient temperature control cable. Furthermore, in the aforementioned household heating and oxygen supply system, the proportional controller consists of several sets of flow control valves and gas mixers, which can adjust the flow rates of the supplied hydrogen and natural gas according to the instructions issued by the ambient temperature controller; the ambient temperature controller can monitor the indoor ambient temperature in real time, set the target ambient temperature, and perform calculations in the internal microcomputer controller to issue instructions for adjusting the flow rates of the supplied hydrogen and natural gas.

[0013] Furthermore, in the aforementioned household heating and oxygen supply system, the outlet of the proportional controller is connected to the gas fireplace via a mixed gas pipeline; hydrogen and natural gas, after being uniformly mixed in a gas mixer and regulated by flow regulation, are transported to the gas fireplace via the mixed gas pipeline and ignited in the gas fireplace to provide heating to the room.

[0014] This invention also provides a method for operating a household heating and oxygen supply system (Scheme 1), which adopts a household heating and oxygen supply system as described above, and the specific method includes the following operating steps: S1: The indoor and outdoor ambient temperatures are monitored using an ambient temperature controller and calculated as follows: , , and The unit is ℃; S2: Set the target ambient temperature in the ambient temperature controller, and calculate it as... The unit is ℃; S3: Obtain basic room parameters , , , , , , ; in, This indicates the total volume of the room, in meters (m²). 3 , This represents the total area of ​​the room's walls, in meters (m²). 2 , This indicates the area of ​​the room door, in meters (m²). 2 , This indicates the area of ​​a room's window panes, expressed in square meters (m²). 2 , This represents the heat transfer coefficient of the room walls, expressed in W / m²·℃. The heat transfer coefficient of a room door is expressed in W / m²·℃. This represents the heat transfer coefficient of a room window sash, expressed in W / m²·℃. S4: Calculate the heat loss through room structure Q c The formula is as follows:

[0015] S5: Calculate room heat loss through infiltration Q i The formula is as follows:

[0016] in: Air density, unit: kg / m³ 3 , This refers to the specific heat capacity of air, expressed in J / kg·K. The infiltration air volumetric flow rate is expressed in cubic meters per second (m³). 3 / s; Among them, the infiltration air volume flow rate Calculate according to the following formula:

[0017] In the formula, This refers to the natural air exchange rate, measured in times per hour. S6: Calculate total heat loss The formula is as follows:

[0018] S7: Calculate heating demand The formula is as follows:

[0019] In the formula, For safety margin, a value of 1.2 is usually taken. S8: Calculate hydrogen supply flow rate With natural gas supply flow The formula is as follows:

[0020]

[0021] In the formula, For the overall thermal efficiency of gas fireplaces, This is the ratio of hydrogen supply flow rate to natural gas supply flow rate. This refers to the lower heating value of hydrogen, expressed in kWh / m³. This refers to the lower heating value of natural gas, expressed in kWh / m³. S9: The ambient temperature controller controls the hydrogen supply flow rate. and natural gas supply flow The adjustment command is transmitted to the proportional controller 10, which executes the corresponding valve action to achieve flow regulation, thereby increasing the indoor ambient temperature Tin.

[0022] S10: Compare target ambient temperature and indoor ambient temperature ,like < If so, the operation will terminate; if > Then repeat S1~S9.

[0023] A method for operating a household heating and oxygen supply system (Scheme 2) also employs a household heating and oxygen supply system as described above. The specific method includes the following operating steps: S11: Ambient oxygen concentration controller monitors indoor oxygen concentration and calculates it as... The unit is % S12: Set the target oxygen concentration in the ambient oxygen concentration controller, and calculate it as follows. The unit is % S13: Calculate room oxygen supply flow rate The formula is as follows:

[0024] In the formula, Total room volume (unit: m²) 3), The number of natural air exchanges in a room, measured in times per hour; S14: The ambient oxygen concentration controller will control the oxygen supply flow rate. The adjustment command is transmitted to the oxygen distributor, which then executes the corresponding valve action to regulate the flow rate, thereby increasing or decreasing the indoor oxygen concentration. ; S15: Compare target oxygen concentration and indoor oxygen concentration ,like < If so, the operation will terminate; if Then repeat S11~S15.

[0025] Compared with the prior art, the main advantages of the present invention are as follows: 1. The household heating and oxygen supply system provided in this application uses hydrogen produced by photovoltaic power and natural gas to generate heat, which can save natural gas consumption, save energy costs, and effectively reduce carbon emissions, making it cleaner than the traditional method of heating solely with natural gas.

[0026] 2. The household heating and oxygen supply system provided in this application can collect and utilize the oxygen produced as a byproduct of the hydrogen production process by water electrolysis, thereby increasing the oxygen concentration in the room and improving living comfort; at the same time, this patent connects a portion of the oxygen to the gas fireplace to create an oxygen-rich environment, which helps to improve the combustion efficiency of hydrogen and natural gas.

[0027] 3. The household heating and oxygen supply system provided in this application can monitor the indoor ambient temperature in real time, obtain the room's heating demand based on parameters such as ambient temperature and target temperature, and control and adjust the supply flow of hydrogen and natural gas through a proportional controller, thereby achieving the goal of constant room temperature. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a household heating and oxygen supply system as described in Example 1; Figure 2 This is a flowchart of the operation method of a household heating and oxygen supply system as described in Example 1; Figure 3 This is a flowchart of the operation method of a household heating and oxygen supply system as described in Example 2; Among them, the photovoltaic power generation device-1, power supply and distribution device-2, water electrolysis hydrogen and oxygen production device-3, oxygen bag-4, oxygen distributor-5, diffused oxygen supply device-6, ambient oxygen concentration controller-7, hydrogen bag-8, pressure regulator-9, proportional controller-10, natural gas pipeline network-11, ambient temperature controller-12, gas fireplace-13, DC cable-14, AC cable-15, hydrogen pipeline-16, oxygen pipeline-17, oxygen concentration control cable-18, indoor oxygen supply pipeline-19, combustion-supporting pipeline-20, natural gas pipeline-21, ambient temperature control cable-22, and mixed gas pipeline-23. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application. As used herein, the singular form includes the plural form unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this description, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] In this invention, some conventional operating equipment, devices and components have been omitted or only briefly described.

[0033] Unless otherwise specified in the examples, the conditions shall be performed in accordance with the standard conditions or the conditions recommended by the manufacturer.

[0034] Example 1: This embodiment provides a household heating and oxygen supply system; see the detailed structural diagram below. Figure 1 As shown, it is adapted to the indoor heating and oxygen demand in high-altitude areas.

[0035] A household heating and oxygen supply system mainly includes a photovoltaic power generation device 1, a power supply and distribution device 2, a water electrolysis hydrogen and oxygen production device 3, an oxygen bag 4, an oxygen distributor 5, a diffused oxygen supply device 6, an ambient oxygen concentration controller 7, a hydrogen bag 8, a pressure regulator 9, a proportional controller 10, a natural gas pipeline network 11, an ambient temperature controller 12, a gas fireplace 13, a DC cable 14, an AC cable 15, a hydrogen pipeline 16, an oxygen pipeline 17, an oxygen concentration control cable 18, an indoor oxygen supply pipeline 19, an auxiliary gas pipeline 20, a natural gas pipeline 21, an ambient temperature control cable 22, and a mixed gas pipeline 23.

[0036] Its photovoltaic power generation device 1 is connected to the power supply and distribution device 2 via DC cable 12; Power supply and distribution device 2 is connected to water electrolysis hydrogen and oxygen production device 3 via AC cable 15; The electrolytic hydrogen and oxygen production device 3 is connected to the oxygen gas bag 4 and the hydrogen gas bag 8 respectively; the oxygen gas bag 4 is connected to the oxygen distributor 5; the outlet of the hydrogen gas bag 8 is connected to the pressure regulator 9 through the hydrogen pipeline 16. The oxygen distributor 5 is connected to the diffused oxygen supply device 6 via the indoor oxygen supply pipe 19; it is also connected to the gas fireplace 13 via the combustion-supporting pipe 20; it can introduce oxygen into the gas fireplace 13 to create an oxygen-rich environment in the fireplace combustion chamber, thereby improving the combustion efficiency of hydrogen and natural gas.

[0037] The ambient oxygen concentration controller 7 is connected to the oxygen distributor 5 via the oxygen concentration control cable 18. The ambient oxygen concentration controller 7 can monitor the oxygen concentration in the environment in real time, set the target oxygen concentration, perform calculations in the internal microcomputer controller, and issue instructions to adjust the oxygen supply flow rate.

[0038] Pressure regulator 9 is connected to proportional controller 10; The natural gas pipeline 11 and the ambient temperature controller 12 are both connected to the proportional controller 10; The proportional controller 10 is connected to the gas fireplace 13.

[0039] In the aforementioned household heating and oxygen supply system, the photovoltaic power generation device 1 is equipped with several photovoltaic modules, which are connected to each other via DC cables to form several photovoltaic arrays. The photovoltaic modules generate electricity using the energy of solar radiation, and the generated electricity is connected to the power supply and distribution device 2 via DC cable 12.

[0040] In the aforementioned household heating and oxygen supply system, the power supply and distribution device 2 is equipped with a DC / DC converter, an AC / DC converter, and an AC / AC converter, providing AC output functionality. The power supply and distribution device 2 is connected to the water electrolysis hydrogen and oxygen production device 3 via an AC cable 15, providing it with a power supply guarantee.

[0041] In the aforementioned household heating and oxygen supply system, the water electrolysis hydrogen and oxygen production device 3 is equipped with an electrolytic cell, a gas-liquid treatment device, and auxiliary equipment. It receives alternating current from the power supply and distribution device 2 and undergoes an electrochemical reaction to decompose hydrogen and oxygen from water. The produced hydrogen is transported via hydrogen pipeline 16 to a hydrogen gas bag 8 for storage; the oxygen produced by the water electrolysis hydrogen and oxygen production device 3 is transported via oxygen pipeline 17 to an oxygen gas bag 4 for storage, and then transported via pipeline to an oxygen distributor 5.

[0042] In the aforementioned household heating and oxygen supply system, the oxygen distributor 5 includes several pressure regulating valves and flow control valves, which can reduce the oxygen pressure and deliver it to the diffused oxygen supply device 6 through the indoor oxygen supply pipeline to supply oxygen to the indoor room; at the same time, it can also adjust the oxygen supply flow rate according to the instructions issued by the ambient oxygen concentration controller 7.

[0043] In the aforementioned household heating and oxygen supply system, the pressure regulator 9 consists of several sets of pressure regulating valves, which can regulate the hydrogen pressure to a suitable range; the hydrogen after pressure regulation is further connected to the proportional controller 10.

[0044] In the aforementioned household heating and oxygen supply system, the natural gas pipeline network 11 is connected to the proportional controller 10 via a natural gas pipeline 21; the ambient temperature controller 12 is connected to the proportional controller 10 via an ambient temperature control cable 22. In the aforementioned household heating and oxygen supply system, the proportional controller 10 is simultaneously connected to the natural gas pipeline network 11 via a natural gas pipeline 21. The proportional controller 10 consists of several sets of flow control valves and a gas mixer, and can adjust the flow rates of the supplied hydrogen and natural gas according to instructions issued by the ambient temperature controller 22. The ambient temperature controller 12 can monitor the indoor ambient temperature in real time, set a target ambient temperature, and perform calculations in its internal microcomputer controller to issue instructions for adjusting the flow rates of the supplied hydrogen and natural gas.

[0045] In the aforementioned household heating and oxygen supply system, the outlet of the proportional controller 10 is connected to the gas fireplace 13 via a mixing gas pipeline 23. Hydrogen and natural gas, after being uniformly mixed in a gas mixer and regulated by flow regulation, are transported to the gas fireplace 13 via the mixing gas pipeline 23 and ignited in the gas fireplace 13 to provide heating to the room.

[0046] Example 2: Based on Example 1, a method for operating a household heating and oxygen supply system is provided, the operation steps of which are as follows: S1: Ambient temperature controller 12 monitors indoor and outdoor ambient temperatures, respectively, and is calculated as follows: , (Unit: °C) S2: Set the target ambient temperature in the ambient temperature controller 12, and calculate it as... (Unit: °C) S3: Obtain basic room parameters , , , , , , ; in, The total volume of the room (unit: m³) 3 ), This represents the total area of ​​the room's walls (unit: m²). 2 ), The area of ​​a room door (unit: m²) 2 ), This indicates the area of ​​a room's window panes (unit: m²). 2 ), This represents the heat transfer coefficient of the room walls (unit: W / m²·℃). This indicates the heat transfer coefficient of the room door (unit: W / m²·℃). Indicates the heat transfer coefficient of a room window sash (unit: W / m²·℃); S4: Calculate the heat loss through room structure Q c The formula is as follows:

[0047] S5: Calculate room heat loss through infiltration Q i The formula is as follows:

[0048] in: Air density (unit: kg / m³) 3 ), Specific heat capacity of air (unit: J / kg·K). Infiltration air volumetric flow rate (unit: m³) 3 / s) Among them, the infiltration air volume flow rate Calculate according to the following formula:

[0049] In the formula, Natural air exchange rate (unit: times / h).

[0050] S6: Calculate total heat loss The formula is as follows:

[0051] S7: Calculate heating demand The formula is as follows:

[0052] In the formula, For safety factors, a value of 1.2 is usually taken.

[0053] S8: Calculate hydrogen supply flow rate With natural gas supply flow The formula is as follows:

[0054]

[0055] In the formula, For the overall thermal efficiency of gas fireplaces, This is the ratio of hydrogen supply flow rate to natural gas supply flow rate. This is the lower heating value of hydrogen (unit: kWh / m³). The lower heating value of natural gas (unit: kWh / m³).

[0056] S9: Ambient temperature controller 12 controls hydrogen supply flow rate and natural gas supply flow The adjustment command is transmitted to the proportional controller 10, which executes the corresponding valve action to achieve flow regulation, thereby increasing the indoor ambient temperature Tin.

[0057] S10: Compare target ambient temperature and indoor ambient temperature ,like < If so, the operation will terminate; if > Then repeat S1~S9.

[0058] Example 3: Based on Example 1, a running (method) mode is provided, the running steps of which are as follows: S11: Ambient oxygen concentration controller 7 monitors indoor oxygen concentration and calculates it as follows: (unit:%); S12: Set the target oxygen concentration in the ambient oxygen concentration controller 7, and calculate it as follows. (unit:%); S13: Calculate room oxygen supply flow rate The formula is as follows:

[0059] In the formula, Total room volume (unit: m²) 3 ), The number of natural air exchanges in a room (unit: times / hour).

[0060] S14: Ambient oxygen concentration controller 7 will control oxygen supply flow rate The adjustment command is transmitted to the oxygen distributor 5, which then executes the corresponding valve action to regulate the flow rate, thereby increasing or decreasing the indoor oxygen concentration. .

[0061] S15: Compare target oxygen concentration and indoor oxygen concentration ,like < If so, the operation will terminate; if Then repeat S11~S15.

[0062] Finally, it should be noted that the above examples are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments and can have many variations. For example, different fluctuation frequencies, fluctuation periods, and fluctuation amplitudes in renewable energy hydrogen production require different parameters such as the feed CO2 buffer amount and crude methanol buffer amount. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this invention should be considered within the scope of protection of this invention.

Claims

1. A household heating and oxygen supply system, characterized in that... It includes a photovoltaic power generation device (1), a power supply and distribution device (2), a water electrolysis hydrogen and oxygen production device (3), an oxygen bag (4), an oxygen distributor (5), a diffuse oxygen supply device (6), an ambient oxygen concentration controller (7), a hydrogen bag (8), a pressure regulator (9), a proportional controller (10), a natural gas pipeline network (11), an ambient temperature controller (12), and a gas fireplace (13). The photovoltaic power generation device (1) is connected to the power supply and distribution device (2) via a DC cable (12); The power supply and distribution device (2) is connected to the water electrolysis hydrogen and oxygen production device (3) via AC cable (15); The electrolytic hydrogen and oxygen production device (3) is connected to the oxygen bag (4) and the hydrogen bag (8) respectively; the oxygen bag (4) is connected to the oxygen distributor (5); the outlet of the hydrogen bag (8) is connected to the pressure regulator (9) through the hydrogen pipeline (16); The oxygen distributor (5) is connected to the diffused oxygen supply device (6) via the indoor oxygen supply pipe (19); it is also connected to the gas fireplace 13 via the combustion-supporting pipe 20. The ambient oxygen concentration controller (7) is connected to the oxygen distributor (5) via an oxygen concentration control cable (18); The pressure regulator (9) is connected to the proportional controller (10); The natural gas pipeline (11) and the ambient temperature controller (12) are both connected to the proportional controller (10); The proportional controller (10) is connected to the gas fireplace (13).

2. A household heating and oxygen supply system according to claim 1, characterized in that: The photovoltaic power generation device (1) is equipped with several photovoltaic modules, which are connected to each other by DC cables to form several photovoltaic arrays. The photovoltaic modules generate electricity using the energy of solar radiation, and the generated electricity is connected to the power supply and distribution device (2) via DC cable (12).

3. A household heating and oxygen supply system according to claim 1, characterized in that: The power supply and distribution device (2) is equipped with a DC / DC converter, an AC / DC converter and an AC / AC converter, and has the function of AC output.

4. A household heating and oxygen supply system according to claim 1, characterized in that: The water electrolysis hydrogen and oxygen production device (3) is equipped with an electrolytic cell, a gas-liquid treatment device and auxiliary devices. It receives AC power from the power supply and distribution device (2) and carries out an electrochemical reaction to decompose hydrogen and oxygen from water. The hydrogen produced is transported to the hydrogen gas bag (8) for storage via the hydrogen pipeline (16). The oxygen produced by the water electrolysis hydrogen and oxygen production device (3) is transported to the oxygen gas bag (4) for storage via the oxygen pipeline (17).

5. A household heating and oxygen supply system according to claim 1, characterized in that: The oxygen distributor (5) includes several pressure regulating valves and flow control valves, which can reduce the oxygen pressure and deliver it to the diffused oxygen supply device (6) through the indoor oxygen supply pipeline to supply oxygen to the indoor room; at the same time, it can also adjust the oxygen supply flow according to the instructions issued by the environmental oxygen concentration controller (7).

6. A household heating and oxygen supply system according to claim 1, characterized in that: The pressure regulator (9) consists of several sets of pressure regulating valves, which can regulate the hydrogen pressure to a suitable range; the hydrogen after pressure regulation is further connected to the proportional controller (10).

7. A household heating and oxygen supply system according to claim 1, characterized in that: The natural gas pipeline (11) is connected to the proportional controller (10) via the natural gas pipeline (21); the ambient temperature controller (12) is connected to the proportional controller (10) via the ambient temperature control cable (22); The proportional controller (10) consists of several sets of flow control valves and gas mixers. It can adjust the flow rates of the supplied hydrogen and natural gas according to the instructions issued by the ambient temperature controller (22). The ambient temperature controller (12) can monitor the indoor ambient temperature in real time, set the target ambient temperature, and perform calculations in the internal microcomputer controller to issue instructions for adjusting the flow rates of supplied hydrogen and natural gas.

8. A household heating and oxygen supply system according to claim 1, characterized in that: The outlet of the proportional controller (10) is connected to the gas fireplace (13) through the mixed gas pipeline (23); after the hydrogen and natural gas are uniformly mixed in the gas mixer after flow regulation and control, they are transported to the gas fireplace (13) through the mixed gas pipeline (23) and ignited in the gas fireplace (13) to heat the room.

9. A method for operating a household heating and oxygen supply system, characterized in that... The method employs a household heating and oxygen supply system as described in any one of claims 1-8, and includes the following operating steps: S1: Use an ambient temperature controller (12) to monitor the indoor and outdoor ambient temperatures, and calculate them as follows: , , and The unit is ℃; S2: Set the target ambient temperature in the ambient temperature controller (12), and calculate it as... The unit is ℃; S3: Obtain basic room parameters , , , , , , ; in, This indicates the total volume of the room, in meters (m²). 3 , This represents the total area of ​​the room's walls, in meters (m²). 2 , This indicates the area of ​​the room door, in meters (m²). 2 , This indicates the area of ​​a room's window panes, expressed in square meters (m²). 2 , This represents the heat transfer coefficient of the room walls, expressed in W / m²·℃. The heat transfer coefficient of a room door is expressed in W / m²·℃. This represents the heat transfer coefficient of a room window sash, expressed in W / m²·℃. S4: Calculate the heat loss through room structure Q c The formula is as follows: S5: Calculate room heat loss through infiltration Q i The formula is as follows: in: Air density, unit: kg / m³ 3 , This refers to the specific heat capacity of air, expressed in J / kg·K. The infiltration air volumetric flow rate is expressed in cubic meters per second (m³). 3 / s; Among them, the infiltration air volume flow rate Calculate according to the following formula: In the formula, This refers to the natural air exchange rate, measured in times per hour. S6: Calculate total heat loss The formula is as follows: S7: Calculate heating demand The formula is as follows: In the formula, For safety margin, a value of 1.2 is usually taken. S8: Calculate hydrogen supply flow rate With natural gas supply flow The formula is as follows: In the formula, For the overall thermal efficiency of gas fireplaces, This is the ratio of hydrogen supply flow rate to natural gas supply flow rate. This refers to the lower heating value of hydrogen, expressed in kWh / m³. This refers to the lower heating value of natural gas, expressed in kWh / m³. S9: Ambient temperature controller (12) controls hydrogen supply flow rate and natural gas supply flow The adjustment command is transmitted to the proportional controller 10, which executes the corresponding valve action to regulate the flow rate and thereby increase the indoor ambient temperature Tin. S10: Compare target ambient temperature and indoor ambient temperature ,like < If so, the operation will terminate; if > Then repeat S1~S9.

10. A method for operating a household heating and oxygen supply system, characterized in that... The method employs a household heating and oxygen supply system as described in any one of claims 1-8, and includes the following operating steps: S11: Ambient oxygen concentration controller (7) monitors indoor oxygen concentration and calculates it as follows: The unit is % S12: Set the target oxygen concentration in the ambient oxygen concentration controller (7), and calculate it as follows: The unit is % S13: Calculate room oxygen supply flow rate The formula is as follows: In the formula, Total room volume (unit: m²) 3 ), The number of natural air exchanges in a room, measured in times per hour; S14: The ambient oxygen concentration controller (7) will control the oxygen supply flow rate. The adjustment command is transmitted to the oxygen distributor (5), which executes the corresponding valve action to regulate the flow rate, thereby increasing or decreasing the indoor oxygen concentration. ; S15: Compare target oxygen concentration and indoor oxygen concentration ,like < If so, the operation will terminate; if Then repeat S11~S15.

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