A new nitrogen sealing device

Abstract

The application discloses a novel nitrogen sealing device and relates to the technical field of nitrogen sealing, which comprises a tank body; a flow guide assembly with a flow guiding function is fixedly installed at the top of the tank body; a flow guide gas pump with a flow guiding function is fixedly arranged at the top side of the flow guide assembly; the flow guide gas pump is driven by a nitrogen gas cylinder through automatic equipment fixation and electrification to generate a magnetic field to adsorb the tank wall, nitrogen gas is efficiently injected into the tank to form a sinking air curtain, and oxygen is driven to a central area by using a density difference; tail gas is efficiently catalytically decomposed into harmless substances by an electrode covered with a platinum-palladium catalyst under the action of an electric field through cooperation of the flow guide gas pump and a tail gas treatment assembly, and a closed-loop system is formed through integrated control of a control panel, so that the opening degree of a multi-way valve, the negative pressure intensity, the sealing pressure and the tail gas treatment effect are dynamically adjusted in real time, synchronously and accurately, and finally, a continuously stable nitrogen micro-positive pressure environment in the tank is maintained and the tail gas pollutants are discharged up to the standard, and the safety and environmental protection of tank operation are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of nitrogen sealing technology, specifically a novel nitrogen sealing device. Background Technology

[0002] In industries such as petrochemicals, pharmaceuticals, and food, traditional nitrogen blanketing devices maintain a slight positive pressure by injecting nitrogen into the top of the storage tank to achieve three main functions: isolating oxygen, inhibiting volatilization, and blocking moisture. However, existing self-regulating systems have significant drawbacks: First, excessive nitrogen consumption occurs because the mechanical breather valve has a delayed response, and the amount of nitrogen replenished often exceeds the actual demand by 30% to 50% when the pressure inside the tank fluctuates, resulting in continuous waste. Second, insufficient sealing reliability allows moisture to easily enter the tank under high humidity conditions, causing material deterioration, and the low-pressure setpoint drift caused by spring / diaphragm aging may cause the oxygen content to rise to the explosion limit. Third, a lack of intelligence means that there is a lack of real-time oxygen concentration monitoring and closed-loop control, making it difficult to dynamically optimize the nitrogen blanketing pressure to adapt to complex operating conditions. Summary of the Invention

[0003] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a novel nitrogen sealing device.

[0004] The present invention is implemented as follows: a novel nitrogen sealing device is constructed, which includes a tank; a flow guiding component with a flow guiding function is fixedly installed on the top of the tank; a flow guiding air pump with a flow guiding function is fixedly installed on the top side of the flow guiding component; an exhaust gas treatment component with a filtering function is fixedly installed on the top of the flow guiding component; a frame is provided on the side of the tank, and a control panel is fixedly installed on the side of the frame by bolts.

[0005] Preferably, the flow guiding assembly includes a sealing upper shell fixedly installed at the opening at the top of the tank by bolts; a sealing lower shell fixedly installed at the bottom center of the sealing upper shell by bolts; a through hole is provided at the top center of the sealing upper shell, and a Venturi tube is fixedly installed in the through hole; the bottom tube of the Venturi tube is fixedly installed at the air outlet at the top of the sealing cover; a first sensor with data acquisition function is fixedly installed on the side of the Venturi tube by bolts; a multi-way valve is fixedly installed on the top side of the sealing upper shell by bolts; and an adaptation component is fixedly installed inside the sealing lower shell.

[0006] Preferably, the adaptation component includes a fixed cylinder fixedly installed inside the sealed lower housing; a reversing valve is fixedly installed at the top air port of the fixed cylinder via an air pipe, and the top air inlet of the reversing valve is fixedly connected to a multi-way valve via an air pipe; a coil sleeve is slidably provided at the end of the piston rod of the fixed cylinder; the coil sleeve is inserted and fixedly installed inside a rigid rubber body; cast iron blocks are rotatably installed on both the left and right sides of the rigid rubber body via connecting rods.

[0007] Preferably, both the hard rubber body and the bottom of the cast iron block are adhesively fitted with exhaust pipes; a coil collar is slidably provided on the outside of the piston rod of the fixed cylinder, and a connecting pipe is adhesively and fixedly installed on the side of the coil collar, with the end of the connecting pipe fixedly installed at the outlet of the reversing valve; the connecting pipe is adhesively and fixedly installed at the air hole on the side of the exhaust pipe; a total of six sets of adaptation components are provided inside the sealed lower shell, and the six sets of reversing valves are controlled in series.

[0008] Preferably, the exhaust gas treatment assembly includes a filter cylinder fixedly installed on the top of the venturi tube; a dustproof net with protective function is fixedly installed on the top side of the filter cylinder by bolts; a protective surface layer is fixedly provided inside the filter cylinder; and a second sensor with data acquisition function is inserted and fixedly installed on the side of the filter cylinder.

[0009] Preferably, an electrode spacer is adhesively and fixedly installed on the inner side of the protective surface layer; electrodes are fixedly installed on both the front and rear sides of the electrode spacer, and wires are fixedly installed on the side of the electrodes; a catalyst is fixedly installed on the surface of the electrodes, and the wires are in contact with the surface of the catalyst.

[0010] Preferably, a spiral guide vane is provided inside the lower tube of the venturi tube, with its axis forming an angle of 30°-60° with the center line of the venturi tube, and the end of the spiral guide vane extends to the inner wall of the tank to guide the nitrogen gas to form a swirling flow.

[0011] Preferably, the catalyst is a platinum-palladium noble metal coating covering the electrode surface, and the catalyst is electrically connected to an external power source via a wire for catalytic decomposition of volatile organic compounds in the exhaust gas.

[0012] Preferably, the control panel has a built-in PLC controller, whose input terminal is connected to the first sensor and the second sensor for data transmission, and whose output terminal is connected to the multi-way valve for control. This controller is used to monitor the venturi flow rate and exhaust gas composition in real time and to dynamically adjust the opening of the multi-way valve.

[0013] Preferably, the mating surfaces of the upper and lower sealing shells are provided with an annular sealing groove, and a flexible graphite gasket is embedded in the groove.

[0014] A method for using a novel nitrogen blanketing device includes the following steps: Step 1: Fix the equipment and apply electricity for adsorption: After the equipment is powered on, nitrogen gas is used to push the adaptation component to stick tightly to the inner wall of the tank, and the magnetic field generated by the power is applied to adsorb and fix it. Step 2: Inject nitrogen to form a protective gas curtain: Nitrogen gas is ejected from the conical gas outlet at the bottom of the outlet pipe, forming a sinking gas curtain that covers the tank wall and drives oxygen to gather towards the center; Step 3: Pumping and dynamically controlling the central gas: Pump the central oxygen mixture, mix it in a swirling motion within the venturi tube, and monitor the process; dynamically adjust the nitrogen injection rate based on the monitoring data. Step 4: Exhaust Gas Purification and Closed-Loop Optimization: The mixed gas is catalytically decomposed by the exhaust gas treatment component; sensors monitor the exhaust gas, and the control panel optimizes all parameters in a closed loop to maintain a slight positive pressure of nitrogen in the tank and ensure that the exhaust gas meets emission standards.

[0015] The present invention has the following advantages: The present invention provides a novel nitrogen sealing device through improvements, which, compared with similar equipment, has the following improvements: The novel nitrogen sealing device described in this invention uses automated equipment to fix and utilize nitrogen-driven cylinders to generate a magnetic field that adsorbs onto the tank wall, efficiently injecting nitrogen into the tank to form a sinking air curtain. This air curtain uses density difference to displace oxygen to the central area. A guide gas pump, in conjunction with an exhaust gas treatment component, efficiently catalytically decomposes the exhaust gas into harmless substances through electrodes covered with platinum-palladium catalyst under the action of an electric field. The control panel integrates and controls the system to form a closed-loop system, dynamically adjusting the opening of the multi-way valve, the negative pressure intensity, the sealing pressure, and the exhaust gas treatment effect in real time, synchronously, and precisely. Ultimately, this achieves the simultaneous maintenance of a continuous and stable nitrogen micro-positive pressure environment inside the tank and the compliance of exhaust pollutant emissions, significantly improving the safety and environmental friendliness of the storage tank operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the axial structure of the flow guiding component of the present invention; Figure 3 This is a cross-sectional view of the flow guiding component of the present invention; Figure 4 This is the invention Figure 2 Enlarged structural diagram at point A; Figure 5 This is a cross-sectional view of the exhaust gas treatment component of the present invention; Figure 6 This is a schematic diagram of the electrode spacer and electrode three-dimensional structure of the present invention.

[0017] The components include: tank body-1, flow guiding assembly-2, flow guiding air pump-3, exhaust gas treatment assembly-4, control panel-5, upper sealing shell-21, lower sealing shell-22, venturi tube-23, sealing cover-24, first sensor component-25, multi-way valve-26, adaptation assembly-27, fixed cylinder-271, reversing valve-272, coil sleeve-273, hard rubber body-274, cast iron block-275, exhaust pipe-276, coil collar-277, connecting pipe-278, filter connecting cylinder-41, dustproof net-42, protective surface layer-43, second sensor component-44, electrode spacer-45, electrode-46, wire-47, catalyst-48. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-6 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The embodiments of this invention will now be described according to its overall structure.

[0021] Example 1: Please see Figures 1-6 The present invention provides a novel nitrogen sealing device, comprising a tank 1; a flow guiding component 2 with a flow guiding function is fixedly installed on the top of the tank 1; a flow guiding air pump 3 with a flow guiding function is fixedly installed on the top side of the flow guiding component 2; an exhaust gas treatment component 4 with a filtering function is fixedly installed on the top of the flow guiding component 2; a frame is provided on the side of the tank 1, and a control panel 5 is fixedly installed on the side of the frame by bolts.

[0022] The flow guiding assembly 2 includes a sealing upper shell 21 fixedly installed at the opening at the top of the tank body 1 by bolts; a sealing lower shell 22 fixedly installed at the bottom middle side of the sealing upper shell 21 by bolts; a through hole is provided at the top middle side of the sealing upper shell 21, and a venturi tube 23 is fixedly installed in the through hole; the bottom tube of the venturi tube 23 is fixedly installed at the air outlet at the top of the sealing cover 24; a first sensor 25 with data acquisition function is fixedly installed on the side of the venturi tube 23 by bolts; a multi-way valve 26 is fixedly installed on the top side of the sealing upper shell 21 by bolts; and an adaptation assembly 27 is fixedly installed inside the sealing lower shell 22.

[0023] The adaptation component 27 includes a fixed cylinder 271 fixedly installed inside the sealed lower housing 22; a reversing valve 272 is fixedly installed on the top air port of the fixed cylinder 271 through an air pipe, and the top air inlet of the reversing valve 272 is fixedly connected to the multi-way valve 26 through an air pipe; a coil sleeve 273 is slidably provided at the end of the piston rod of the fixed cylinder 271; the coil sleeve 273 is inserted and fixedly installed inside the hard rubber body 274; cast iron blocks 275 are rotatably installed on the left and right sides of the hard rubber body 274 through connecting rods, and a coil is provided inside the cast iron block 275.

[0024] Both the hard rubber body 274 and the cast iron block 275 have an outlet air pipe 276 glued to their bottoms, and the outlet air pipe 276 has a conical air port at its bottom; a coil collar 277 is slidably arranged on the outside of the piston rod of the fixed cylinder 271, and a connecting pipe 278 is glued and fixedly installed on the side of the coil collar 277, and the end of the connecting pipe 278 is fixedly installed at the air outlet of the reversing valve 272; the connecting pipe 278 is glued and fixedly installed at the air hole on the side of the outlet air pipe 276; a total of six sets of adaptation components 27 are arranged inside the sealed lower shell 22, and the six sets of reversing valves 272 are controlled in series.

[0025] A spiral guide vane is installed inside the lower tube of the Venturi tube 23. Its axis forms an angle of 30°-60° with the center line of the Venturi tube 23, and the end of the spiral guide vane extends to the inner wall of the tank 1 to guide the nitrogen gas to form a swirling flow.

[0026] An annular sealing groove is provided on the mating surface of the sealing upper shell 21 and the sealing lower shell 22, and a flexible graphite gasket is embedded in the groove.

[0027] Example 2: Please see Figures 1-6 The present invention provides a novel nitrogen sealing device, which, compared with Embodiment 1, further includes: an exhaust gas treatment assembly 4 comprising a filter cylinder 41 fixedly installed on the top of a venturi tube 23; a dustproof net 42 with protective function fixedly installed on the top side of the filter cylinder 41 by bolts; a protective surface layer 43 fixedly installed inside the filter cylinder 41; and a second sensor 44 with data acquisition function inserted and fixedly installed on the side of the filter cylinder 41.

[0028] An electrode spacer 45 is glued and fixedly installed on the inner side of the protective surface layer 43; electrodes 46 are fixedly installed on both the front and rear sides of the electrode spacer 45, and wires 47 are fixedly installed on the side of the electrodes 46; a catalyst 48 is fixedly installed on the surface of the electrodes 46, and the wires 47 are in contact with the surface of the catalyst 48; the catalyst 48 is a platinum-palladium noble metal coating, which covers the surface of the electrodes 46, and the catalyst 48 is electrically connected to an external power source through the wires 47, and is used to catalytically decompose volatile organic compounds in the exhaust gas. The electrode spacer 45 and the electrodes 46 are glued together on the inner side of the protective surface layer 43 to form a honeycomb structure.

[0029] The control panel 5 has a built-in PLC controller. Its input terminal is connected to the first sensor 25 and the second sensor 44 for data transmission, and its output terminal is connected to the multi-way valve 26 for control. It is used to monitor the flow rate and exhaust gas composition of the venturi tube 23 in real time and dynamically adjust the opening of the multi-way valve 26.

[0030] The working principle of the novel nitrogen sealing device described above is as follows: First, when using this device, place it in the work area, and then connect it to an external power source to provide the power required for its operation. Second, nitrogen enters the reversing valve 272 of the flow guiding assembly 2 through the multi-way valve 26, and the nitrogen is introduced into the fixed cylinder 271 and the connecting pipe 278 respectively by the control action of the reversing valve 272. The gas pressure inside the fixed cylinder 271 increases, which pushes the coil sleeve 273, the hard rubber body 274 and the cast iron block 275 to move and come close to the inner wall of the tank 1. Then, by supplying energy to the cast iron block 275, it is energized to generate a magnetic field and attracts the inner wall of the tank 1. Third, nitrogen is introduced into the connecting pipe 278 through the control action of the reversing valve 272. Here, nitrogen enters the outlet pipe 276 through the connecting pipe 278 and is sprayed out. Due to the conical air inlet at the bottom of the outlet pipe 276, nitrogen can form an air curtain and sink into the inner wall of the tank 1. Due to the density of nitrogen and oxygen, nitrogen gradually covers the entire surface of the gas phase space, driving the original oxygen to move towards the central area of ​​the storage tank 1. Then, by controlling the flow pump 3, oxygen and other gases in the middle of the tank 1 are actively drawn in. Subsequently, they are guided by the spiral guide vanes inside the lower section of the venturi tube 23 to form a mixed swirling flow, promoting its uniform distribution in the venturi tube 23. The mixed gas is collected by the first sensor 25. Then, the control panel 5 dynamically adjusts the opening of the multi-way valve 26 according to the operating data of the venturi tube 23 monitored by the first sensor 25, thereby controlling the amount of nitrogen discharged by the outlet pipe 276. Fourth, the mixed gas drawn by the guide gas pump 3 rises into the exhaust gas treatment component 4. The mixed gas enters the protective surface layer 43 inside the filter cylinder 41 and flows through the honeycomb structure formed by the electrode spacer 45, the electrode 46, and the protective surface layer 43. Here, the electrode 46, which is covered with a platinum-palladium noble metal catalyst coating, works. Under the electrochemical action of the electric field and the catalyst 48, the volatile organic compounds of the catalyst 48 are catalytically decomposed into harmless substances. The second sensor 44 monitors the exhaust gas components flowing out from inside the protective surface layer 43 and feeds them back to the control panel 5. The control panel 5 integrates and processes the data from the first and second sensors, and precisely controls the multi-way valve in real time and in a closed loop, thereby optimizing the nitrogen injection volume, negative pressure intensity, sealing pressure, and exhaust gas treatment effect. Ultimately, it achieves the synchronous and efficient operation of maintaining a continuous and stable nitrogen micro-positive pressure environment inside the tank and ensuring that the exhaust gas meets emission standards.

[0031] This invention provides a novel nitrogen sealing device through improvements. An automated device uses nitrogen to drive a cylinder and generate a magnetic field that adsorbs the tank wall, efficiently injecting nitrogen into the tank to form a descending air curtain. This curtain uses density difference to displace oxygen to the central area. A guide pump 3, in conjunction with a tail gas treatment component 4, efficiently catalytically decomposes the tail gas into harmless substances under the influence of an electric field through electrodes 46 covered with a platinum-palladium catalyst. The control panel 5 integrates and controls this process to form a closed-loop system, dynamically adjusting the multi-way valve opening, negative pressure intensity, sealing pressure, and tail gas treatment effect in real time, synchronously, and precisely. Ultimately, this simultaneously achieves a continuous and stable nitrogen micro-positive pressure environment within the tank and ensures that tail gas pollutants meet emission standards, significantly improving the safety and environmental friendliness of the storage tank operation.

[0032] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A nitrogen sealing device, comprising a tank (1); a flow guiding component (2) with a flow guiding function is fixedly installed on the top of the tank (1); a flow guiding air pump (3) with a flow guiding function is fixedly installed on the top side of the flow guiding component (2); a tail gas treatment component (4) with a filtering function is fixedly installed on the top of the flow guiding component (2); a frame is provided on the side of the tank (1), and a control panel (5) is fixedly installed on the side of the frame by bolts; Its features are: The flow guiding assembly (2) includes a sealing upper shell (21) fixedly installed at the top opening of the tank body (1) by bolts; a sealing lower shell (22) is fixedly installed at the bottom middle side of the sealing upper shell (21) by bolts; a through hole is provided at the top middle side of the sealing upper shell (21), and a venturi tube (23) is fixedly installed in the through hole; the bottom tube of the venturi tube (23) is fixedly installed at the top air outlet of the sealing cover (24); a first sensor (25) with data acquisition function is fixedly installed on the side of the venturi tube (23) by bolts; a multi-way valve (26) is fixedly installed on the top side of the sealing upper shell (21) by bolts; and an adaptation assembly (27) is fixedly installed inside the sealing lower shell (22). The adaptation component (27) includes a fixed cylinder (271) fixedly installed inside the sealed lower shell (22); a reversing valve (272) is fixedly installed on the top air port of the fixed cylinder (271) through an air pipe, and the top air inlet of the reversing valve (272) is fixedly connected to a multi-way valve (26) through an air pipe; a coil sleeve (273) is slidably provided at the end of the piston rod of the fixed cylinder (271); the coil sleeve (273) is inserted and fixedly installed inside a hard rubber body (274); cast iron blocks (275) are rotatably installed on both the left and right sides of the hard rubber body (274) through connecting rods. Both the hard rubber body (274) and the cast iron block (275) have an outlet air pipe (276) glued to their bottoms; a coil collar (277) is slidably provided on the outside of the piston rod of the fixed cylinder (271), and a connecting pipe (278) is glued and fixedly installed on the side of the coil collar (277), and the end of the connecting pipe (278) is fixedly installed at the air outlet of the reversing valve (272); the connecting pipe (278) is glued and fixedly installed at the air hole on the side of the outlet air pipe (276); a total of six sets of adaptation components (27) are provided inside the sealed lower shell (22), and the six sets of reversing valves (272) are controlled in series.

2. The nitrogen sealing device according to claim 1, characterized in that: The exhaust gas treatment assembly (4) includes a filter cylinder (41) fixedly installed on the top of the venturi tube (23); a dustproof net (42) with protective function is fixedly installed on the top side of the filter cylinder (41) by bolts; a protective surface layer (43) is fixedly installed inside the filter cylinder (41); and a second sensor (44) with data acquisition function is inserted and fixedly installed on the side of the filter cylinder (41).

3. The nitrogen sealing device according to claim 2, characterized in that: An electrode spacer (45) is glued and fixedly installed on the inner side of the protective surface layer (43); an electrode (46) is fixedly installed on both the front and rear sides of the electrode spacer (45), and a wire (47) is fixedly installed on the side of the electrode (46); a catalyst (48) is fixedly installed on the surface of the electrode (46), and the wire (47) is in contact with the surface of the catalyst (48).

4. The nitrogen sealing device according to claim 3, characterized in that: The lower tube of the Venturi tube (23) is provided with a spiral guide vane inside, the axis of which forms an angle of 30°-60° with the center line of the Venturi tube (23), and the end of the spiral guide vane extends to the inner wall of the tank (1) to guide the nitrogen gas to form a swirling flow.

5. The nitrogen sealing device according to claim 4, characterized in that: The catalyst (48) is a platinum-palladium noble metal coating that covers the surface of the electrode (46), and the catalyst (48) is electrically connected to an external power source through a wire (47) for catalytic decomposition of volatile organic compounds in the exhaust gas.

6. The nitrogen sealing device according to claim 5, characterized in that: The control panel (5) has a built-in PLC controller. Its input end is connected to the first sensor (25) and the second sensor (44) for data connection, and its output end is connected to the multi-way valve (26) for control connection. It is used to monitor the flow rate and exhaust gas composition of the venturi tube (23) in real time and dynamically adjust the opening degree of the multi-way valve (26).

7. The nitrogen sealing device according to claim 6, characterized in that: The mating surfaces of the upper sealing shell (21) and the lower sealing shell (22) are provided with an annular sealing groove, and a flexible graphite gasket is embedded in the groove.

8. A method of using a nitrogen blanketing device, for implementing the nitrogen blanketing device as described in claim 7, characterized in that: Includes the following steps: Step 1: Fix the equipment and apply electricity for adsorption: After the equipment is powered on, nitrogen is used to push the adaptation component (27) to stick tightly to the inner wall of the tank (1), and an electric field is generated to adsorb and fix it. Step 2: Inject nitrogen to form a protective gas curtain: Nitrogen gas is sprayed out from the conical gas outlet at the bottom of the outlet gas pipe (276) to form a sinking gas curtain covering the tank wall (1) and driving oxygen to gather towards the center; Step 3: Pumping and dynamically controlling the central gas: Pump the oxygen mixture in the center, mix it in a swirling motion in the venturi tube (23) and monitor it; adjust the nitrogen injection amount dynamically based on the monitoring data; Step 4, exhaust gas purification and closed-loop optimization: The mixed gas is catalytically decomposed by the exhaust gas treatment component (4); the sensor monitors the exhaust gas, and the control panel (5) optimizes all parameters in a closed loop to maintain a slight positive pressure of nitrogen in the tank (1) and ensure that the exhaust gas meets emission standards.

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