Nitrogen-free carbon-reduction energy storage heating system

Abstract

The invention relates to the technical field of energy storage heating, in particular to a nitrogen-free carbon-reduction energy storage heating system which comprises a nitrogen and oxygen processing unit and a gas heating furnace, the nitrogen and oxygen processing unit is used for digesting surplus wind, light and electricity and off-peak electricity to prepare nitrogen and oxygen, and a plurality of gas storage tanks used for storing nitrogen and oxygen are further arranged on the nitrogen and oxygen processing unit. Nitrogen processed by the nitrogen and oxygen processing unit is used for an oil layer nitrogen injection oil displacement process, and oxygen processed by the nitrogen and oxygen processing unit is used for assisting the combustion of the fuel gas heating furnace. Compared with the prior art, the nitrogen and oxygen processing unit and the gas heating furnace are arranged to be matched with the gas storage tank, high investment for replacing core equipment is avoided, transformation is convenient and fast, the cost is low, gas consumption is reduced by 60% or above through oxygen-assisted combustion, the heat energy conversion rate is increased, the service life of the equipment is prolonged, and the maintenance cost and downtime of the equipment are reduced; and the economical efficiency and operability of the system are comprehensively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage and heating, and in particular to a nitrogen-free and carbon-reduced energy storage and heating system. Background Art

[0002] Driven by the global energy transformation and carbon neutrality goals, the industrial sector has an increasing demand for clean and efficient energy. Traditional gas heating systems are widely used in the petroleum, chemical, metallurgical and other industries, but they inevitably produce a large amount of nitrogen oxides (NOx) and carbon dioxide (CO2) during the combustion process, becoming one of the important sources of environmental pollution and greenhouse gas emissions. How to reduce NOx emissions and improve energy utilization while ensuring a stable supply of industrial heat energy has become a technical problem that needs to be solved urgently.

[0003] In the existing technology, the traditional system relies on direct combustion of gas heating furnaces, which has low combustion efficiency and low heat energy conversion rate, resulting in large gas consumption and high operating energy consumption. Due to the lack of oxygen-assisted combustion mechanism, the gas heating furnace burns nitrogen in the air at high temperature, which easily generates a large amount of nitrogen oxides (NOx), resulting in large flue gas emissions that are difficult to meet standards. NOx not only causes serious pollution to the environment, but also increases the cost and pressure of enterprises in environmental protection management. If traditional gas heating furnaces need to improve combustion efficiency or reduce emissions, they usually need to replace core equipment or install complex denitrification equipment, which has high transformation costs and long construction periods. In addition, traditional systems lack effective filtration during gas storage and transportation, resulting in impurities in nitrogen or oxygen directly entering the gas storage tank or heating furnace. Long-term operation will cause equipment wear, blockage or corrosion, increase maintenance frequency, shorten equipment service life, and affect the overall stability of the system. Therefore, this application discloses a nitrogen-free and carbon-reducing energy storage and heating system. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a nitrogen-free and carbon-reducing energy storage heating system to solve the problem that when a gas heating furnace burns nitrogen in the air at high temperature, it is easy to generate a large amount of nitrogen oxides (NOx), resulting in large flue gas emissions that are difficult to meet standards, and during the gas storage and transportation process, there is a lack of effective filtration, which causes impurities in nitrogen or oxygen to directly enter the gas storage tank or heating furnace, and long-term operation will cause equipment wear, blockage or corrosion.

[0005] Based on the above-mentioned purpose, the present invention provides a nitrogen-free carbon-reducing energy storage and heating system, including a nitrogen and oxygen processing unit and a gas heating furnace. The nitrogen and oxygen processing unit is used to digest surplus wind and solar power and off-peak electricity to produce nitrogen and oxygen. The nitrogen and oxygen processing unit is also provided with a plurality of gas storage tanks for storing nitrogen and oxygen. The nitrogen processed by the nitrogen and oxygen processing unit is used for oil layer nitrogen injection and oil recovery process, and the oxygen processed by the nitrogen and oxygen processing unit is used for auxiliary gas heating furnace combustion.

[0006] Preferably, a mounting bracket for mounting the gas tank is provided on one side of the gas tank, an air inlet for air intake and an air outlet for air exhaust are provided on one side of the gas tank, a filter assembly is provided at one end of the gas tank, the filter assembly is used to filter the nitrogen or oxygen processed by the nitrogen and oxygen processing unit, and a pressure detection assembly is also provided at the bottom of the mounting bracket, the pressure detection assembly is used to observe the air pressure state inside the gas tank in real time.

[0007] Preferably, the filter assembly includes a filter tank fixedly mounted on one side of the mounting bracket, a top side of the filter tank is provided with a filter inlet pipe, the filter inlet pipe is connected with the gas outlet position of the nitrogen and oxygen processing unit, a bottom side of the filter tank is provided with a filter outlet channel, the bottom of the filter outlet channel is provided with a filter outlet pipe, the other end of the filter outlet pipe is connected with a three-way joint, a first control valve is provided between the filter outlet pipe and the three-way joint, one end of the three-way joint is connected with an air storage inlet pipe 1, a pressure pump is provided on the side of the mounting bracket away from the filter tank, the pressure pump is connected with the air storage inlet pipe 1, an air storage inlet pipe 2 is provided on the other side of the pressure pump and is connected with the air inlet, and a second control valve is provided between the air inlet and the air storage inlet pipe 2 for control.

[0008] Preferably, a filter cavity is provided on one side of the interior of the filter tank, a filter cartridge is rotatably installed inside the filter cavity, a rotating shaft is fixedly installed on the side of the filter cartridge away from the filter air inlet pipe, a rotating motor is provided on the side of the filter tank away from the filter air inlet pipe, and the output end of the rotating motor is fixedly connected to the rotating shaft.

[0009] Preferably, the filter cartridge includes two positioning discs rotatably mounted inside the filter cavity, a positioning column is fixedly mounted between the two positioning discs, the rotating shaft passes through one of the positioning discs and is fixedly connected to the middle of the positioning column, the outer surface of the positioning column is sleeved with a filter cartridge, the outer surface of the filter cartridge is sleeved with a filter ring, and the two ends of the filter ring are respectively fixedly connected to the two positioning discs.

[0010] Preferably, a sealing bearing is sleeved on one end of the filtering air inlet pipe close to the filter element tube, a multi-directional air inlet pipe is nested on the other end of the sealing bearing, the other end of the multi-directional air inlet pipe is multi-channel, a plurality of connecting pipes are penetrated at one end of the other positioning disc, and the multi-channels at the other end of the multi-directional air inlet pipe are connected to the plurality of connecting pipes.

[0011] Preferably, the pressure detection assembly includes a gas storage pressure tube arranged at one end of the gas storage tank, the gas storage pressure tube is connected to the interior of the gas storage tank, and a pressure gauge is arranged at the other end of the gas storage tank.

[0012] Preferably, a return pipe is also provided on one side of the middle part of the gas storage pressure pipe, the other end of the return pipe is connected with the other end of the three-way joint, a connecting pipe is provided on the side of the gas storage pressure pipe close to the pressure gauge and is connected with the return pipe, and a third valve is provided at both connection points between the gas storage pressure pipe and the return pipe.

[0013] Preferably, a rate meter is provided at one end of the reflux pipe.

[0014] Preferably, the oxygen injection port of the gas heating furnace is provided with an oxygen injection nozzle.

[0015] Beneficial effects of the present invention: 1. This nitrogen-free, carbon-reducing energy storage and heating system, by setting up nitrogen and oxygen processing units and supporting gas storage tanks, uses surplus wind and solar power or off-peak electricity to produce nitrogen and oxygen, efficiently converts fluctuating renewable energy into stable industrial resources, avoids waste of electricity, and directly applies nitrogen to the oil field nitrogen injection flooding process, significantly improves crude oil recovery, achieves oil field production increase while reducing the cost of purchasing nitrogen, and reduces the high energy consumption and environmental pollution caused by traditional nitrogen production methods. Oxygen is used in the auxiliary combustion process of gas heating furnaces to further improve the combustion efficiency of fuels and reduce gas consumption, thereby achieving comprehensive and efficient utilization of resources. This solution not only fully taps the potential of wind and solar power, but also improves the energy utilization rate in industrial processes, reduces production costs, and helps promote the deep integration of green energy and industry, providing an innovative path for the consumption of renewable energy; The oxygen produced by the nitrogen and oxygen processing units is directly injected into the combustion zone of the gas heating furnace. By optimizing the combustion process, the gas combustion efficiency is significantly improved, the gas consumption is reduced by more than 60%, and the generation of NOx is reduced, effectively reducing flue gas emissions by more than 70%, ensuring that NOx emissions meet the standards 100%. Compared with the high investment in replacing equipment, this solution only requires the addition of oxygen injection nozzles to achieve the transformation, which has significant economy and operability. Oxygen-assisted combustion not only improves the thermal energy conversion rate, but also extends the service life of the equipment, reduces maintenance costs and downtime. In addition, it reduces greenhouse gas and pollutant emissions through efficient combustion.

[0016] 2. This nitrogen-free and carbon-reducing energy storage and heating system is equipped with a filter component. The filter component ensures that the nitrogen or oxygen generated by the nitrogen and oxygen processing units is efficiently filtered before entering the gas tank, thereby ensuring the purity of the gas, reducing the amount of impurities entering the gas tank or subsequent equipment, and preventing equipment loss and blockage. Impurities are intercepted layer by layer through the filter cartridge and the multi-stage filter ring, and the airflow is kept smooth during the filtration process to ensure stable filtration efficiency. The filter cartridge can rotate and self-clean under the drive of the rotating motor, and the centrifugal force is used to throw the impurities attached to the filter element to the bottom of the filter cavity, thereby achieving automatic cleaning, reducing maintenance frequency, and extending the service life of the filter component. The self-cleaning function of the filter component avoids airflow blockage. Even if there is a lot of impurities accumulated in the filter, the filter outlet pipe can be disconnected to allow the gas to be directly discharged from the bottom of the filter cavity to restore the smoothness of the system.

[0017] 3. This nitrogen-free and carbon-reduced energy storage and heating system is equipped with a pressure detection component, which can monitor the internal pressure status of the gas tank in real time to ensure that the system operates within a safe pressure range and effectively avoid the safety risks caused by overpressure in the tank. The reflux pipe allows excess gas in the gas tank to automatically flow back to the booster pump for secondary pressurization when the pressure rises, thereby increasing the gas density in the tank, optimizing storage space, and avoiding waste. The rate meter monitors the reflux process in real time to ensure that the reflux rate is stable, and works together with the booster pump to maintain the internal pressure balance of the system. The gas reflux path is accurately controlled through the third valve to prevent excessive or too fast reflux and ensure smooth operation of the system. During the whole process, the operator can adjust the operating status in time according to the data of the pressure gauge and the rate meter to prevent system failures caused by excessive or low gas pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the nitrogen-free and carbon-reducing heating process of the present invention; Figure 2 This is a schematic diagram of the structure of the gas storage tank of the present invention from the first perspective; Figure 3 This is a schematic structural diagram of the gas storage tank of the present invention from a second viewing angle; Figure 4 This is a schematic diagram of the bottom structure of the mounting bracket of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6This is a schematic diagram of the plane structure of the filter assembly of the present invention; Figure 7 This is a schematic diagram of the internal structure of the filter assembly of the present invention; Figure 8 It is a schematic diagram of the filter cartridge structure of the present invention; Fig. 9 It is a schematic diagram of the decomposed structure of the filter cartridge of the present invention.

[0020] The markings in the figure are: 1. Mounting bracket; 2. Gas storage tank; 3. Air inlet; 4. Air outlet; 5. Filter tank; 6. Filter air inlet pipe; 7. Filter air outlet channel; 8. Sealed bearing; 9. Multi-directional air inlet pipe; 10. Filter cavity; 11. Rotating shaft; 12. Rotating motor; 13. Filter cartridge; 14. Filter air outlet pipe; 15. First control valve; 16. Three-way connector; 17. Gas storage air inlet pipe 1; 18. Booster pump; 19. Gas storage air inlet pipe 2; 20. Second control valve; 21. Gas storage pressure pipe; 22. Pressure gauge; 23. Reflux pipe; 24. Rate meter; 25. Third valve; 26. Connecting pipe; 27. Positioning disc; 28. Positioning column; 29. ​​Filter cartridge; 30. Filter ring. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figures 1 to 9As shown, the nitrogen-free carbon-reducing energy storage heating system includes a nitrogen and oxygen processing unit and a gas heating furnace. The nitrogen and oxygen processing unit is used to digest the surplus wind and solar power and off-peak electricity to produce nitrogen and oxygen. The nitrogen and oxygen processing unit is also provided with a plurality of gas storage tanks 2 for storing nitrogen and oxygen. The nitrogen processed by the nitrogen and oxygen processing unit is used for the oil layer nitrogen injection flooding process, and the oxygen processed by the nitrogen and oxygen processing unit is used to assist the combustion of the gas heating furnace, wherein the oxygen filling port of the gas heating furnace is provided with an oxygen injection nozzle; When there is a surplus of wind and solar power or electricity is at a low point, the nitrogen and oxygen processing unit is started, and the electrolysis or pressure swing adsorption (PSA) technology is used to separate the air to produce nitrogen and oxygen. The generated nitrogen is stored in the gas storage tank 2 and transported to the oil field nitrogen injection and oil recovery system when needed. Nitrogen is injected into the oil layer to improve oil recovery efficiency; oxygen enters the gas heating furnace through the transmission pipeline, and the oxygen injection nozzle at the filling port directly injects oxygen into the combustion zone to make the gas combustion more complete, improve combustion efficiency, and reduce NOx generation. During the operation of the entire system, the output and storage of oxygen and nitrogen are automatically controlled by the nitrogen and oxygen processing unit to ensure the continuous and stable supply of nitrogen to the gas heating furnace and the oil field. The nitrogen and oxygen processing unit uses low-peak electricity or surplus wind and solar power to produce nitrogen and oxygen, effectively converting renewable energy into industrial production resources, reducing electricity waste, and reducing the operating energy consumption of the gas heating furnace. The gas heating furnace is Directly introducing oxygen during the combustion process can improve combustion efficiency, make the gas burn fully, and reduce the possibility of nitrogen and oxygen reacting to generate NOx in a high temperature environment, thereby achieving a flue gas emission reduction of more than 70% and NOx emission 100% compliance. The processed nitrogen is directly used in the oil field nitrogen injection flooding process. By injecting nitrogen, the crude oil recovery rate is increased, the oil field production is increased, the demand for purchased nitrogen is reduced, and the oil field operating costs are reduced. At the same time, a large amount of energy consumption and pollution emissions in the traditional nitrogen production process are avoided. In addition, the gas heating furnace only needs to add an oxygen injection nozzle, avoiding the high cost of replacing or upgrading the core equipment. The transformation investment is small, easy to implement, and has high economy and operability. Oxygen-assisted combustion not only improves the combustion efficiency, but also improves the overall thermal energy conversion rate of the gas heating furnace, reduces gas consumption, achieves more than 60% energy saving effect, extends equipment life, and reduces equipment maintenance and downtime.

[0024] like Figure 2 , Figure 3 , Figure 4 As shown, a mounting bracket 1 for mounting the gas tank 2 is provided on one side of the gas tank 2, an air inlet 3 for air intake and an air outlet 4 for air discharge are provided on one side of the gas tank 2, a filter assembly is provided at one end of the gas tank 2, and the filter assembly is used to filter the nitrogen or oxygen processed by the nitrogen and oxygen processing unit, and a pressure detection assembly is also provided at the bottom of the mounting bracket 1, and the pressure detection assembly is used to observe the air pressure state inside the gas tank 2 in real time; The nitrogen or oxygen generated by the nitrogen and oxygen processing unit enters the gas storage tank 2 through the delivery pipeline, and first passes through the filter component at one end of the gas storage tank 2 to filter out impurities and particles in the gas to ensure that the gas entering the tank is pure. The gas enters the gas storage tank 2 through the air inlet 3 for storage. During the gas filling and storage process, the pressure detection component monitors the pressure state in the tank in real time. When needed, the gas is transported from the air outlet 4 to the gas heating furnace or the oil field nitrogen injection equipment. The gas storage tank 2 is fixed on the mounting bracket 1 to ensure that the tank is stable and easy to maintain and replace.

[0025] like Figures 6 to 9 As shown, the filter assembly includes a filter tank 5 fixedly mounted on one side of the mounting bracket 1, a filter inlet pipe 6 is arranged on the top side of the filter tank 5, and the filter inlet pipe 6 is connected to the outlet position of the nitrogen and oxygen processing unit, a filter outlet channel 7 is arranged on the bottom side of the filter tank 5, a filter outlet pipe 14 is arranged at the bottom of the filter outlet channel 7, the other end of the filter outlet pipe 14 is connected to a three-way joint 16, a first control valve 15 is arranged between the filter outlet pipe 14 and the three-way joint 16, and the three-way joint 16 is connected to the filter outlet pipe 14. One end of the head 16 is connected to an air storage inlet pipe 17, a pressure pump 18 is arranged on the side of the mounting bracket 1 away from the filter tank 5, the pressure pump 18 is connected to the air storage inlet pipe 17, the other side of the pressure pump 18 is provided with an air storage inlet pipe 2 19 connected to the air inlet 3, a second control valve 20 is arranged between the air inlet 3 and the air storage inlet pipe 2 19 for control, a filter chamber 10 is arranged on one side of the interior of the filter tank 5, a filter cartridge 13 is rotatably installed inside the filter chamber 10, and the filter cartridge 13 is arranged on the other side of the pressure pump 18. A rotating shaft 11 is fixedly installed on the side away from the filter air inlet pipe 6, and a rotating motor 12 is arranged on the side of the filter tank 5 away from the filter air inlet pipe 6. The output end of the rotating motor 12 is fixedly connected to the rotating shaft 11. The filter cartridge 13 includes two positioning discs 27 rotatably installed inside the filter cavity 10, and a positioning column 28 is fixedly installed between the two positioning discs 27. The rotating shaft 11 passes through one of the positioning discs 27 and is fixedly connected to the middle of the positioning column 28. A filter cartridge 29 is sleeved on the outer surface of the positioning column 28, and a filter ring 30 is sleeved on the outer surface of the filter cartridge 29. The two ends of the filter ring 30 are respectively fixedly connected to the two positioning discs 27. A sealing bearing 8 is sleeved on one end of the filter air inlet pipe 6 close to the filter cartridge 13, and a multi-directional air inlet pipe 9 is nested on the other end of the sealing bearing 8. The other end of the multi-directional air inlet pipe 9 is arranged in a multi-channel manner. A plurality of connecting pipes 26 are penetrated at one end of the other positioning disc 27, and the other end of the multi-directional air inlet pipe 9 is multi-channelly connected to the plurality of connecting pipes 26. When the nitrogen and oxygen processing units are started and nitrogen or oxygen is produced, the gas enters the filter inlet pipe 6 through the delivery pipeline and flows into the filter tank 5 installed on the bracket. The gas enters the multi-directional inlet pipe 9 through the sealing bearing 8 and enters the inside of the filter cartridge 13 along the multi-channel. Under the drive of the rotating motor 12, the rotating shaft 11 drives the filter cartridge 13 to rotate, so that the gas is evenly distributed inside the filter cartridge 13, and is filtered step by step through the filter ring 30 and the filter cartridge 29. Pure nitrogen or oxygen flows into the filter outlet channel 7 and is transported to the three-way joint 16 through the filter outlet pipe 14. When the first control valve 15 is opened, the gas enters the pressure pump 18 through the gas storage inlet pipe 1 17, flows into the gas storage inlet pipe 2 19 after being pressurized, and finally enters the gas storage tank 2 through the second control valve 20 for storage; During the gas filtering process, if the system detects that a large amount of impurities are accumulated on the surface of the filter cartridge 13 or the filter ring 30, the operator or the automatic system first closes the first control valve 15 to temporarily stop the gas output of the filter outlet pipe 14, then disconnects the filter outlet pipe 14 from the filter outlet channel 7, opens the filter outlet channel 7, and allows the gas to be discharged from the bottom of the filter cavity 10. At this time, the rotating motor 12 is started to drive the filter cartridge 13 to rotate at high speed, and the centrifugal force generated by the rotation is used to throw the impurities on the surface of the filter cartridge 13 to the bottom of the filter cavity 10 and discharged through the filter outlet channel 7 to restore the permeability of the filter. After cleaning, the filter outlet channel 7 is closed again, the filter outlet pipe 14 is connected, and the first control valve 15 is opened to allow the gas to re-enter the gas storage tank 2 to complete the filtering and storage process.

[0026] like Figures 3 to 5 As shown, the pressure detection assembly includes a gas storage pressure pipe 21 arranged at one end of the gas storage tank 2, the gas storage pressure pipe 21 is connected to the inside of the gas storage tank 2, a pressure gauge 22 is arranged at the other end of the gas storage tank 2, a return pipe 23 is also arranged on one side of the middle of the gas storage pressure pipe 21, the other end of the return pipe 23 is connected to the other end of the three-way joint 16, a connecting pipe is arranged on one side of the gas storage pressure pipe 21 close to the pressure gauge 22 and connected to the return pipe 23, a third valve 25 is arranged at both connection points between the gas storage pressure pipe 21 and the return pipe 23, and a rate meter 24 is arranged at one end of the return pipe 23; After the nitrogen and oxygen processing unit is in operation, the generated nitrogen or oxygen is filtered by the filter tank 5 and then enters the gas storage tank 2 through the gas storage inlet pipe 19 for storage. The internal pressure of the gas storage tank 2 gradually rises. When the pressure approaches the set upper limit, the gas storage pressure pipe 21 transmits the pressure signal to the pressure gauge 22 for real-time display. If the pressure rises further, the third valve 25 is opened, and the return pipe 23 guides part of the gas in the gas storage tank 2 to flow to the three-way joint 16 and enters the booster pump 18 through the gas storage inlet pipe 17. The booster pump 18 performs secondary pressurization on the reflux gas. , the gas re-enters the gas storage tank 2, increasing the gas density in the tank, avoiding overpressure in the gas storage tank 2 and optimizing the storage efficiency. During the reflux process, the rate meter 24 monitors the rate of the reflux gas in real time to ensure that the working state of the booster pump 18 is dynamically balanced with the pressure of the gas storage tank 2. When the gas pressure in the tank returns to a safe range, the third valve 25 is closed, the reflux process is terminated, and the gas storage tank 2 continues normal storage. During the whole process, the operator can monitor the system status through the pressure gauge 22 and the rate meter 24 to ensure the smooth operation of the system and effectively avoid safety hazards caused by overpressure.

[0027] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0028] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nitrogen-free, carbon-reducing, energy storage and heating system, comprising a nitrogen and oxygen processing unit and a gas heating furnace, characterized in that: The nitrogen and oxygen processing unit is used to digest surplus wind and solar power and off-peak electricity to produce nitrogen and oxygen. The nitrogen and oxygen processing unit is also provided with a plurality of gas storage tanks (2) for storing nitrogen and oxygen. The nitrogen processed by the nitrogen and oxygen processing unit is used in the oil layer nitrogen injection flooding process, and the oxygen processed by the nitrogen and oxygen processing unit is used to assist the combustion of the gas heating furnace.

2. The nitrogen-free and carbon-reducing energy storage heating system according to claim 1 is characterized in that: A mounting bracket (1) for mounting the gas storage tank (2) is provided on one side of the gas storage tank (2); an air inlet (3) for air intake and an air outlet (4) for air discharge are provided on one side of the gas storage tank (2); a filter component is provided at one end of the gas storage tank (2); the filter component is used to filter nitrogen or oxygen processed by the nitrogen or oxygen processing unit; a pressure detection component is also provided at the bottom of the mounting bracket (1); the pressure detection component is used to observe the air pressure state inside the gas storage tank (2) in real time.

3. The nitrogen-free and carbon-reducing energy storage heating system according to claim 2 is characterized in that: The filter assembly comprises a filter tank (5) fixedly mounted on one side of the mounting bracket (1); a filter air inlet pipe (6) is arranged on one side of the top end of the filter tank (5); the filter air inlet pipe (6) is connected to the gas outlet position of the nitrogen and oxygen processing unit; a filter air outlet channel (7) is arranged on one side of the bottom end of the filter tank (5); a filter air outlet pipe (14) is arranged at the bottom of the filter air outlet channel (7); the other end of the filter air outlet pipe (14) is connected to a three-way joint (16); the filter air outlet pipe (14) and the three-way joint (16) are connected to each other. A first control valve (15) is arranged between the three-way joint (16), one end of the three-way joint (16) is connected to an air storage inlet pipe (17), a pressure pump (18) is arranged on the side of the mounting bracket (1) away from the filter tank (5), the pressure pump (18) is connected to the air storage inlet pipe (17), the other side of the pressure pump (18) is provided with an air storage inlet pipe (19) connected to the air inlet (3), and a second control valve (20) is arranged between the air inlet (3) and the air storage inlet pipe (19) for control.

4. The nitrogen-free and carbon-reducing energy storage heating system according to claim 3 is characterized in that: A filter cavity (10) is provided on one side of the interior of the filter tank (5), a filter cartridge (13) is rotatably mounted inside the filter cavity (10), a rotating shaft (11) is fixedly mounted on a side of the filter cartridge (13) away from the filter air inlet pipe (6), a rotating motor (12) is provided on a side of the filter tank (5) away from the filter air inlet pipe (6), and an output end of the rotating motor (12) is fixedly connected to the rotating shaft (11).

5. The nitrogen-free and carbon-reducing energy storage heating system according to claim 4 is characterized in that: The filter cartridge (13) comprises two positioning discs (27) rotatably mounted inside the filter cavity (10); a positioning column (28) is fixedly mounted between the two positioning discs (27); the rotating shaft (11) passes through one of the positioning discs (27) and is fixedly connected to the middle of the positioning column (28); a filter cartridge (29) is sleeved on the outer surface of the filter cartridge (29); a filter ring (30) is sleeved on the outer surface of the filter cartridge (29); and two ends of the filter ring (30) are respectively fixedly connected to the two positioning discs (27).

6. The nitrogen-free and carbon-reduced energy storage heating system according to claim 5 is characterized in that: One end of the filtering air inlet pipe (6) close to the filter cartridge (13) is sleeved with a sealing bearing (8), the other end of the sealing bearing (8) is nested with a multi-directional air inlet pipe (9), the other end of the multi-directional air inlet pipe (9) is arranged in a multi-channel manner, one end of the other positioning disc (27) is penetrated by a plurality of connecting pipes (26), and the other end of the multi-directional air inlet pipe (9) is multi-channelly connected to the plurality of connecting pipes (26).

7. The nitrogen-free and carbon-reduced energy storage heating system according to claim 3 is characterized in that: The pressure detection assembly comprises a gas storage pressure pipe (21) arranged at one end of the gas storage tank (2), the gas storage pressure pipe (21) being connected to the interior of the gas storage tank (2), and a pressure gauge (22) being arranged at the other end of the gas storage tank (2).

8. The nitrogen-free and carbon-reduced energy storage heating system according to claim 7 is characterized in that: A return pipe (23) is also provided on one side of the middle of the gas storage pressure pipe (21), the other end of the return pipe (23) is connected to the other end of the three-way joint (16), a connecting pipe is provided on one side of the gas storage pressure pipe (21) close to the pressure gauge (22) and is connected to the return pipe (23), and third valves (25) are provided at both connection points between the gas storage pressure pipe (21) and the return pipe (23).

9. The nitrogen-free and carbon-reduced energy storage heating system according to claim 8 is characterized in that: A rate meter (24) is provided at one end of the return pipe (23).

10. The nitrogen-free and carbon-reduced energy storage heating system according to claim 1, characterized in that: The oxygen injection port of the gas heating furnace is provided with an oxygen injection nozzle.

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