A control method of a mine-used wet full-range gas concentration enrichment power generation system

Abstract

The application discloses a control method of a mine-used moisture-containing full-range gas concentration enrichment power generation system, uses a free water content detection instrument to monitor the free water content of gas raw material gas; when it is detected that the gas contains water, the gas is introduced into a drying tower for drying treatment; the dried gas is subjected to grading treatment according to the methane concentration thereof; for 3%-30% of the gas, the mixed gas is introduced into a pressure coupling variable voltage adsorption tower for primary adsorption treatment; a methane concentration detection device and a carbon dioxide concentration detection device are arranged in the buffer tank respectively; in the solid oxide fuel cell, the generated current is used for heating the adsorbent, and the excess electric energy is stored in a lithium battery for standby; sensors are installed in the system to monitor the methane concentration, oxygen concentration and humidity in real time; the explosion risk and the gas leakage risk are evaluated in real time by monitoring the sensor data; when the explosion risk is detected, the system automatically closes the control valve and introduces carbon dioxide to reduce the explosion risk.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gas concentration enrichment power generation, in particular to a control method of a mine-used wet full-range gas concentration enrichment power generation system. BACKGROUND

[0002] According to the technical specification for coal mine low-concentration gas and fine water mist mixed safe conveying device (AQ 1078-2009), the coal mine low-concentration gas is continuously mixed and conveyed with fine water mist in the pipeline to prevent the coal mine low-concentration gas conveying pipeline from generating a fire source and inhibiting flame propagation. However, if the low-concentration gas is to be further enriched and utilized, the free water mixed in the conveying process is likely to block the adsorbent and reduce the adsorption efficiency. In addition, for pressure swing adsorption, although the adsorption efficiency can be effectively improved and the energy consumption can be reduced, since there is an electric current on the adsorbent, if the adsorbed gas contains water, an accident may occur. Therefore, the water needs to be pretreated. The prior art has proposed some solutions, such as using a dehydration device to adsorb free water in wet gas, using a solution absorption method to reduce the moisture content of low-concentration gas, etc. For example, patent application No. CN202322729534.5 discloses a pretreatment device for low-concentration gas used for direct combustion heat supply, and patent application No. CN201620324775.9 discloses a device for reducing the moisture content of low-concentration gas using a solution absorption method. However, these methods are only used for pretreatment of wet gas, or use the gas for direct combustion heat supply, and are not for gas enrichment power generation. In addition, there are few studies on the combination of pressure swing coupling pressure swing adsorption and power generation technology. For example, patent No. CN201621280440.8 discloses a coal bed methane purification vacuum pressure swing coupling adsorption experimental device, which only adsorbs methane and does not consider subsequent application.

[0003] In summary, for the pretreatment, enrichment and power generation technology of coal mine underground wet gas, the current science and technology has not comprehensively considered and effectively combined them.

[0004] Therefore, in view of the above situation, it is urgent to develop a control method of a low-concentration wet gas pretreatment and enrichment power generation integrated system for efficient and safe utilization of low-concentration wet gas. SUMMARY

[0005] The present application relates to the field of gas concentration enrichment power generation, in particular to a control method of a mine-used wet full-range gas concentration enrichment power generation system.

[0006] The present application relates to the field of gas concentration enrichment power generation, in particular to a control method of a mine-used wet full-range gas concentration enrichment power generation system.

[0007] A control method of a mine-used moisture-containing full-range gas concentration enrichment power generation system, comprising the following steps:

[0008] S1: gas moisture content monitoring: using a free water content detection instrument to monitor the moisture content of the gas raw material; when water is detected in the gas, it is introduced into a drying tower for drying treatment;

[0009] S2: gas gas grading treatment: the dried gas is graded according to its methane concentration;

[0010] S3: adsorption treatment: for 3%-30% of the gas, the mixed gas is introduced into a pressure coupling variable pressure adsorption tower for primary adsorption treatment;

[0011] S4: desorption gas treatment: a methane concentration detection device and a carbon dioxide detection device are arranged in the buffer tank;

[0012] S5: power generation and energy utilization: in the solid oxide fuel cell, the methane, hydrogen, and carbon monoxide mixed gas reacts with oxygen to generate an electric current; the generated electric current is used to heat the adsorbent, and the excess electric energy is stored in a lithium battery for standby;

[0013] S6: safety monitoring and control: sensors are installed in the system to monitor the methane concentration, oxygen concentration, and humidity in real time; the explosion risk and gas leakage risk are evaluated in real time through the monitoring sensor data; when the explosion risk is detected, the system automatically closes the control valve and introduces carbon dioxide to reduce the explosion risk;

[0014] S7: tail gas treatment: the tail gas is treated by a tail gas treatment system, and the methane, hydrogen, and other gases in the tail gas are introduced into a combustion furnace for direct combustion.

[0015] Preferably, the gas grading treatment further comprises a gas concentration monitor, which is used to adaptively select a corresponding power generation mode according to the concentration of the raw material gas; when the methane concentration is greater than 30%, the dehumidified gas is introduced into a high-concentration gas power generation system through a control valve, and a direct combustion method is adopted, with a conversion efficiency of about 30%;

[0016] When the methane concentration is between 3% and 30%, the low-concentration gas is introduced into a low-concentration gas enrichment fuel power generation system, and a pressure coupling variable pressure adsorption method is adopted for efficient enrichment, and a solid oxide fuel cell is used for the power generation device, so that the energy conversion efficiency breaks through the Carnot cycle and reaches 60%;

[0017] When the methane concentration is less than 3%, the low-concentration gas is oxidized by a thermal oxidation method.

[0018] Preferably, the adsorption treatment further comprises: enriching the methane to a concentration that meets the solid oxide fuel cell power generation concentration requirement.

[0019] For the gas with methane concentration below 8%, the concentration is enriched to be greater than or equal to 8%;

[0020] The adsorption process further comprises real-time monitoring of gas components and a nonlinear coupling device, for the input raw gas, the nonlinear coupling model is used for optimization, and according to the gas concentration of the input gas, the process parameters in the adsorption tower are changed, and the gas is intelligently and efficiently enriched for use;

[0021] Then detected by the real-time monitoring device of the gas components in the adsorption tower, for the gas with concentration below 8%, the nonlinear coupling model is used for optimization, and the process parameters in the adsorption tower are changed, and then the gas is subjected to secondary adsorption treatment, if the concentration still does not reach 8%, the above steps are repeated, if it reaches 8%, it enters the subsequent processing step.

[0022] Preferably, the desorption gas treatment further comprises: the concentration ratio of methane and carbon dioxide in the desorption gas, when the concentration ratio of methane and carbon dioxide in the desorption gas is not 1:1, carbon dioxide gas is introduced to adjust the concentration ratio of methane and carbon dioxide in the desorption gas to 1:1, and then it is introduced into the desorption gas heat exchanger for introduction into the reforming reactor for reforming;

[0023] The exhaust gas is introduced into the exhaust gas heat exchanger for heating treatment.

[0024] Preferably, the combustion furnace comprises a second mounting cover, a conveying pipe is fixedly connected to the second mounting cover, a driving box is fixedly connected to the conveying pipe, a first rotating shaft is rotatably connected to the driving box, a driving plate is fixedly connected to the first rotating shaft, a second output pipe is fixedly connected to the driving box, and a first transfer box is fixedly connected to the second output pipe.

[0025] A crown gear is fixedly connected to the first rotating shaft, a second gear is engaged with the crown gear, a hollow pipe is fixedly connected to the second gear, and the hollow pipe is rotatably connected to the first transfer box.

[0026] Preferably, a second transfer box is fixedly connected to the hollow pipe;

[0027] A plurality of mounting boxes are fixedly connected to the second transfer box, a plurality of elbow pipes and second rotating shafts are rotatably connected to the mounting boxes, third gears are fixedly connected to the elbow pipes and the third rotating shafts, the plurality of third gears are engaged, a third rotating shaft is rotatably connected to the mounting box, a fourth gear is fixedly connected to the third rotating shaft, and the fourth gear is engaged with the third gear;

[0028] The bottom of the mounting box is fixedly connected with a fifth gear, a gear ring is engaged with the fifth gear, a mounting frame is fixedly connected with the gear ring, the mounting frame is rotationally connected with a third rotating shaft, the third rotating shaft is rotationally connected with a supporting frame, and the supporting frame is fixedly connected with the second mounting box.

[0029] Preferably, the second mounting cover is fixedly connected with a mounting ring inside, the mounting ring is fixedly connected with a filter screen inside, the filter screen is fixedly connected with a connecting disc at the bottom, and the connecting disc is fixedly connected with a third connecting rod at the bottom.

[0030] The right side of the second mounting cover is fixedly connected with a first output pipe.

[0031] Preferably, the second mounting cover is fixedly connected with a first mounting cover.

[0032] The first mounting cover is fixedly connected with an auxiliary disc inside, the auxiliary disc is fixedly connected with a mounting ring, the auxiliary disc is slidably connected with a second connecting rod, the second connecting rod is fixedly connected with a connecting plate at the bottom, the connecting plate is fixedly connected with a third connecting rod, and the auxiliary disc is connected with the connecting plate through a first spring.

[0033] The second connecting rod is fixedly connected with a vibrating hammer at the top, and the vibrating hammer is slidably connected with the first mounting cover.

[0034] Preferably, the first mounting cover is fixedly connected with a limiting plate inside, a groove is formed in the limiting plate, the limiting plate is slidably connected with a first connecting rod, the first connecting rod is fixedly connected with a sliding block, the sliding block is slidably connected with the first mounting cover, a fourth rotating shaft is rotationally connected with the sliding block inside, a clamping jaw is rotationally connected with the fourth rotating shaft, the clamping jaw is located inside a sliding groove formed in the first mounting cover, two clamping jaws are provided with two limiting frames, the limiting frames are slidably connected with the sliding block, the limiting frames are fixedly connected with extrusion rods, and the two limiting frames are connected through a second spring.

[0035] Preferably, the first connecting rod is fixedly connected with a threaded plate at the top, a reciprocating screw rod is threadedly connected with the threaded plate, the reciprocating screw rod is rotationally connected with the second mounting cover, the reciprocating screw rod is fixedly connected with a first gear, and the first gear is engaged with a crown gear.

[0036] The present application has the following advantages:

[0037] 1. The utilization efficiency of gas is improved: through the grading enrichment treatment of low-concentration gas, the utilization rate of gas is significantly improved, and the waste of gas resources is reduced. By adopting the variable pressure coupling variable pressure adsorption technology, the gas with a concentration of 3-30% can be efficiently adsorbed and enriched under low energy consumption.

[0038] Effective treatment of moisture-containing gas: The invention uses a free water content detection instrument and a drying tower to solve the problem of moisture in gas, preventing condensate from blocking the adsorption tower and causing short circuits, improving the efficiency of the system and the safety of the adsorption process.

[0039] System safety enhancement: Multiple sensors are installed in the system, including temperature sensors, humidity sensors, methane concentration sensors, and oxygen concentration sensors, to monitor the state of the gas in real time. When an explosion risk is detected, the system can automatically close the control valve and introduce carbon dioxide, reducing the risk of explosion and ensuring the safety of the system.

[0040] Process parameter optimization: A nonlinear coupling model is used to optimize various process parameters in the adsorption tower based on real-time data of gas concentration, improving adsorption efficiency and system stability. Real-time data application enables dynamic adjustment based on actual conditions to ensure optimal operating conditions.

[0041] High energy utilization rate: The current generated by the reaction of methane, hydrogen, and carbon monoxide mixed gas with oxygen in the solid oxide fuel cell is used to heat the adsorbent, and excess electricity is stored for future use, achieving high energy utilization efficiency. The system is energy self-sufficient, reducing dependence on external energy and lowering operating costs.

[0042] Significant environmental benefits: The system reduces greenhouse gas emissions of methane, and the exhaust gas is treated by the exhaust gas treatment system to ensure that emissions meet environmental requirements and reduce environmental pollution. The overall design of the system takes environmental factors into account, promoting the use of green energy.

[0043] Strong applicability: The invention is particularly suitable for treating moisture-containing gas and gas with unstable concentration, and can operate stably under different conditions. It is suitable for mine exploration, coal gas treatment, and other fields, with wide application prospects.

[0044] 2. The tail gas is transported through the conveying pipe, and the crown gear is driven to rotate by the tail gas. The installation box drives the elbow pipe to rotate, which makes the tail gas continuously blow to the filter screen, so that the filter screen continuously filters impurities in the tail gas. The elbow pipe can also rotate, which can make the tail gas act on different positions of the filter screen, better act on the filter screen, and the tail gas sprayed by the elbow pipe is inclined, which can act on the filter screen obliquely, thereby effectively cleaning the filter screen, avoiding blockage of the filter screen, better cleaning the tail gas, and the process also slows down the time of tail gas discharge. The tail gas can stay in the combustion furnace for a longer time, thereby being better purified.

[0045] 3、When the crown gear rotates, the threaded plate will also move up and down, and the threaded plate moving up and down will make the vibration hammer move up, and the vibration hammer will make the third connecting rod move up, so that the filter screen will fluctuate up and down, thereby being able to well act on the filter screen, avoid its blockage, better make the filter screen be used, and when the vibration hammer moves up to a certain position, the vibration hammer will directly drop, thereby continuously moving down, and the vibration hammer will impact the auxiliary disc, so that vibration occurs at the filter screen, and the filter screen is further cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a system composition schematic diagram of the present application;

[0047] Figure 2 It is a working process schematic diagram of the present application;

[0048] Figure 3 It is an intelligent monitoring and monitoring flow chart of the present application;

[0049] Figure 4 It is a structure schematic diagram of the combustion furnace of the present application;

[0050] Figure 5 It is a structure schematic diagram of the second installation cover of the present application;

[0051] Figure 6 It is Figure 5 A enlarged schematic diagram of the present application;

[0052] Figure 7 It is an internal structure schematic diagram of the driving box of the present application;

[0053] Figure 8 It is an internal structure schematic diagram of the installation box of the present application;

[0054] Figure 9 It is an internal structure schematic diagram of the first installation cover of the present application;

[0055] Figure 10 It is Figure 9 B enlarged schematic diagram of the present application;

[0056] Figure 11 It is a structure schematic diagram of the limiting plate of the present application.

[0057] Reference numerals: 1, compressor; 2A, air feeding buffer tank 2; B, exhaust gas buffer tank; 2C, exhaust gas buffer tank; 3A, first suction control valve; 3B, first air feeding control valve; 3C, second suction control valve; 3D, second air feeding control valve; 3E, third suction control valve; 3F, third air feeding control valve; 3G, fourth suction control valve; 3H, fourth air feeding control valve; 3I, first equalizing control valve; 3J, first exhaust gas control valve; 3K, second equalizing control valve; 3L, second exhaust gas control valve; 3M, third equalizing control valve; 3N, third exhaust gas control valve; 3O, fourth equalizing control valve; 3P, fourth exhaust gas control valve; 3Q, feed control valve; 4A, first adsorption tower; 4B, second adsorption tower; 4C, third adsorption tower; 4D, fourth adsorption tower; 5A, first throttling sub; 5B, second throttling sub; 5C, third throttling sub; 5D, fourth throttling sub; 6, vacuum pump; 7, one-way valve; 8, flow regulating valve; 9A, exhaust gas heat exchanger; 9B, desorbed gas heat exchanger; 10, gas mixing bottle; 11, dry reforming tower; 12, solid oxide fuel cell; 13, dryer; 14, switch; 15, voltage transformer; 16A, first variable resistor; 16B, second variable resistor; 17, low-temperature thermostat; 18A, first condenser; 18B, second condenser; 18C, third condenser; 18D, fourth condenser; 19, first mounting cover; 20, second mounting cover; 21, conveying pipe; 22, first output pipe; 23, reciprocating screw rod; 24, first gear; 25, crown gear; 26, groove; 27, second gear; 28, mounting box; 29, support frame; 30, mounting ring; 31, filter screen; 32, connecting plate; 33, connecting plate; 34, driving box; 35, first rotating shaft; 36, second output pipe; 37, first intermediate box; 38, hollow pipe; 40, driving plate; 41, third gear; 42, elbow pipe; 43, second rotating shaft; 44, second intermediate box; 45, fourth gear; 46, mounting frame; 47, gear ring; 48, third rotating shaft; 49, threaded plate; 50, first connecting rod; 51, sliding block; 52, vibrating hammer; 53, second connecting rod; 54, first spring; 55, third connecting rod; 56, sliding slot; 57, limiting frame; 58, second spring; 59, extrusion rod; 60, clamping jaw; 61, fourth rotating shaft; 62, limiting plate. DETAILED DESCRIPTION

[0058] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present application, and are not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0059] Specific embodiments of the present application are described below with reference to the accompanying drawings.

[0060] Embodiment 1:

[0061] As Figures 1-3 shown, a control method of a mine moisture-containing full-range gas concentration enrichment power generation system includes the following steps:

[0062] S1: Gas moisture content monitoring: Use a free water content detection instrument to monitor the moisture content of the gas raw material gas; when water is detected in the gas, it is passed into a drying tower for drying treatment;

[0063] S2: Gas gas grading treatment: The dried gas is graded according to its methane concentration;

[0064] S3: Adsorption treatment: For 3-30% of the gas, the mixed gas is passed into a pressure coupling variable adsorption tower for primary adsorption treatment;

[0065] S4: Desorption gas treatment: A methane concentration detection device and a carbon dioxide detection device are provided in the buffer tank;

[0066] S5: Power generation and energy utilization: In the solid oxide fuel cell 12, the methane, hydrogen, and carbon monoxide mixed gas reacts with oxygen to generate an electric current; the generated electric current is used to heat the adsorbent, and the excess electric energy is stored in a lithium battery for standby;

[0067] S6: Safety monitoring and control: Sensors are installed in the system to monitor methane concentration, oxygen concentration, and humidity in real time; explosion risk and gas leakage risk are assessed in real time through monitoring sensor data; when an explosion risk is detected, the system automatically closes the control valve and passes in carbon dioxide to reduce the explosion risk;

[0068] S7: Tail gas treatment: The tail gas passes through a tail gas treatment system, and the methane, hydrogen, and other gases in the tail gas are introduced into a combustion furnace for direct combustion using a direct combustion method.

[0069] The gas grading treatment also includes a gas concentration monitor, through which the system adapts to the corresponding power generation method according to the concentration of the raw material gas; when the methane concentration is greater than 30%, the dehumidified gas is passed into a high-concentration gas power generation system through a control valve, and a direct combustion method is adopted, with a conversion efficiency of about 30%;

[0070] When the methane concentration is between 3-30%, it is passed into a low-concentration gas enrichment fuel power generation system, which adopts a pressure coupling variable adsorption method to efficiently enrich, and the power generation device adopts a solid oxide fuel cell (12), so that the energy conversion efficiency breaks through the Carnot cycle to reach 60%;

[0071] When the methane concentration is less than 3%, the low-concentration gas is oxidized by thermal oxidation.

[0072] The adsorption process further includes enriching the methane to a concentration required for power generation of the solid oxide fuel cell (12);

[0073] For gas with a methane concentration of less than 8%, the concentration is enriched to be greater than or equal to 8% after enrichment;

[0074] The adsorption process further includes real-time monitoring of gas components and a nonlinear coupling device, and for the input raw gas, the nonlinear coupling model is used for optimization, and according to the gas concentration of the input gas, the process parameters in the adsorption tower are changed, and the gas is intelligently and efficiently enriched for use;

[0075] Then the gas component real-time monitoring device of the adsorption tower is detected, and for the gas with a concentration less than 8%, the nonlinear coupling model is used for optimization, and the process parameters in the adsorption tower are changed, and then the gas is subjected to secondary adsorption treatment. If the concentration still does not reach 8%, repeat the above steps, if it reaches 8%, then enter the subsequent processing step.

[0076] The desorption gas treatment further includes that when the concentration ratio of methane to carbon dioxide in the desorption gas is not 1:1, carbon dioxide gas is introduced to adjust the concentration ratio of methane to carbon dioxide in the desorption gas to 1:1, and then the desorption gas is introduced into the desorption gas heat exchanger (9B) for introduction into the reforming reactor (11) for reforming;

[0077] The exhaust gas is introduced into the exhaust gas heat exchanger (9A) for heating treatment.

[0078] Raw gas input and free water content monitoring:

[0079] The raw gas is introduced into the system from the input pipeline (the "raw gas input" in Figure 2 ).

[0080] The free water content monitoring instrument (the "free water content monitoring" in Figure 2 ) is used to monitor the water content in the gas. If free water is detected in the gas, the next drying treatment is entered.

[0081] Drying treatment:

[0082] The gas containing water is transported to the drying tower (the "drying tower" in Figure 2 ) for drying treatment to remove the water in the gas. After drying treatment, the water content is monitored again, and if it still contains water, it is dried again, and if it does not contain free water, it enters the gas concentration monitoring stage.

[0083] Gas concentration detection:

[0084] The dried gas is detected for methane concentration by the real-time gas concentration monitoring device (real-time detection of gas concentration) in the system. Figure 2

[0085] According to the detection results, the gas is divided into three processing paths:

[0086] The gas with methane concentration below 3% is treated by regenerative oxidation (regenerative oxidation) in the system. Figure 2

[0087] The gas with methane concentration between 3% and 30% enters the low-concentration gas enrichment system (low-concentration gas enrichment) in the system. Figure 2

[0088] The gas with methane concentration above 30% enters the high-concentration gas power generation system (high-concentration gas power generation) in the system. Figure 2 Low-concentration gas enrichment treatment:

[0089] The gas with methane concentration between 3% and 30% enters the low-concentration gas enrichment system (low-concentration gas enrichment system) in the system.

[0090] Figure 2

[0091] The low-concentration gas enrichment system includes a pressure swing coupled variable pressure adsorption tower (pressure swing coupled variable pressure adsorption tower) in the system, which determines whether to perform secondary adsorption treatment according to the desorption gas concentration. Figure 2

[0092] The real-time monitoring data of gas concentration in the adsorption tower (real-time data monitoring of adsorption tower gas components) in the system is used to optimize the process parameters in the adsorption tower, and a nonlinear coupling model is used to optimize the process parameters (nonlinear coupling model optimization of process parameters) in the system. Figure 2 Figure 2

[0093] Desorption gas treatment:

[0094] The gas desorbed from the adsorption tower is adjusted to achieve a methane to carbon dioxide ratio of 1:1 (desorption gas adjustment) in the system, and then enters the desorption gas heat exchanger 9B and the reforming reactor 11 for reforming, and then enters the solid oxide fuel cell 12 (solid oxide fuel cell 12) for power generation. Figure 2 Figure 2 Power generation and energy utilization:

[0095]

[0096] ​​​​​​​​​​In the solid oxide fuel cell 12, methane, hydrogen, carbon monoxide mixed gas and oxygen are reacted to generate electricity. The generated electricity is used to heat the adsorbent, and the excess electricity is stored for standby Figure 1

[0097] The power generation module in the system (the "power generation system" in Figure 2 is used for the operation of the system and standby.

[0098] Tail gas treatment and emission:

[0099] The tail gas generated in the power generation process is treated by the tail gas treatment system (the "tail gas treatment emission" in Figure 2 to ensure that the emission gas meets environmental protection requirements and reduces environmental pollution.

[0100] Safety monitoring and control:

[0101] A variety of sensors are installed in the system (the "explosion risk safety monitoring" and "gas leakage risk safety monitoring" in Figure 2 to monitor the methane concentration, oxygen concentration and pressure in real time.

[0102] When the explosion risk is detected, the system automatically closes the control valve and introduces carbon dioxide (the "introduction of carbon dioxide to reduce the explosion risk" in Figure 2 to reduce the explosion risk and ensure the safety of the system operation.

[0103] The process parameter optimization control module of the system dynamically adjusts according to the real-time monitoring data to ensure the optimal operating state of the system.

[0104] Through the above specific embodiments, the present application provides a control method for a high-efficiency, safe and low-energy-consumption low-concentration gas enrichment power generation system, which realizes efficient utilization and safe treatment of gas, and is particularly suitable for treating wet gas and unstable concentration gas.

[0105] Example 2:

[0106] As shown in Figures 4-11 , in the case that other parts are the same as in example 1, the difference between this embodiment and example 1 is that the combustion furnace comprises a second mounting cover 20, the second mounting cover 20 is fixedly connected with a conveying pipe 21, the conveying pipe 21 is fixedly connected with a driving box 34, the driving box 34 is rotatably connected with a first rotating shaft 35, the first rotating shaft 35 is fixedly connected with a driving plate 40, the driving box 34 is fixedly connected with a second output pipe 36, and the second output pipe 36 is fixedly connected with a first transfer box 37.

[0107] ​The first rotating shaft 35 is fixedly connected with a crown gear 25, the crown gear 25 is engaged with a second gear 27, the second gear 27 is fixedly connected with a hollow pipe 38, and the hollow pipe 38 is rotationally connected with the first transfer box 37.

[0108] The hollow pipe 38 is fixedly connected with a second transfer box 44.

[0109] The second transfer box 44 is fixedly connected with a plurality of mounting boxes 28, the mounting boxes 28 are rotationally connected with a plurality of elbow pipes 42 and a second rotating shaft 43, the elbow pipes 42 and the third rotating shaft 48 are fixedly connected with a third gear 41, the plurality of third gears 41 are engaged, the mounting boxes 28 are rotationally connected with the third rotating shaft 48, the third rotating shaft 48 is fixedly connected with a fourth gear 45, and the fourth gear 45 is engaged with the third gear 41.

[0110] The mounting boxes 28 are fixedly connected with a fifth gear at the bottom, the fifth gear is engaged with a tooth ring 47, the tooth ring 47 is fixedly connected with a mounting frame 46, the mounting frame 46 is rotationally connected with the third rotating shaft 48, the third rotating shaft 48 is rotationally connected with a support frame 29, and the support frame 29 is fixedly connected with the second mounting box 28.

[0111] The second mounting cover 20 is fixedly connected with a mounting ring 30 inside, the mounting ring 30 is fixedly connected with a filter screen 31 inside, the filter screen 31 is fixedly connected with a connecting disc 32 at the bottom, and the connecting disc 32 is fixedly connected with a third connecting rod 55 at the bottom.

[0112] The second mounting cover 20 is fixedly connected with a first output pipe 22 on the right side.

[0113] When the exhaust gas is conveyed to the inside of the driving box 34 through the conveying pipe 21, the driving plate 40 is driven to rotate due to the action of the exhaust gas, the rotation of the driving plate 40 drives the first rotating shaft 35 to rotate, the first rotating shaft 35 drives the crown gear 25 to rotate, the crown gear 25 drives the second gear 27 to rotate, the second gear 27 drives the hollow pipe 38 to rotate, the hollow pipe 38 drives the second transfer box 44 to rotate, the second transfer box 44 drives the mounting box 28 to rotate, and the mounting box 28 drives the elbow pipe 42 to rotate.

[0114] The exhaust gas is discharged from the second output pipe 36 into the first transfer box 37, then discharged into the inside of the mounting box 28 through the hollow pipe 38, and finally discharged from the elbow pipe 42, the exhaust gas discharged from the elbow pipe 42 acts on the filter screen 31, and the elbow pipe 42 is inclined and rotates around the hollow pipe 38, so that it can better act on more filter screens 31, better utilize the filter screens 31, and avoid the phenomenon of accumulation and blockage of the filter screen 31 in one place.

[0115] And the second transfer box 44 rotation will drive the fifth gear rotation, the fifth gear will drive the gear ring 47 rotation, gear ring 47 drive the third shaft 48, the third shaft 48 will drive the fourth gear 45, the fourth gear 45 meshing with the third gear 41 rotation, the third gear 41 will drive the elbow pipe 42 rotation, elbow pipe 42 will constantly from different angles self-cleaning filter screen 31, not only can better clean filter screen 31, but also filter out the impurities of exhaust gas.

[0116] Embodiment 3:

[0117] As Figures 4-11 shown, in other parts are the same as in embodiment 1, the difference between this embodiment and embodiment 1 is that the second mounting cover 20 is fixedly connected with the first mounting cover 19;

[0118] The first mounting cover 19 is fixedly connected with an auxiliary disc, and the auxiliary disc is fixedly connected with the mounting ring 30. The auxiliary disc is slidably connected with a second connecting rod 53. The second connecting rod 53 is fixedly connected with a connecting plate 33. The connecting plate 33 is fixedly connected with a third connecting rod 55. The auxiliary disc is connected with the connecting plate 33 through a first spring 54.

[0119] The second connecting rod 53 is fixedly connected with a vibration hammer 52. The vibration hammer 52 is slidably connected with the first mounting cover 19.

[0120] The first mounting cover 19 is fixedly connected with a limiting plate 62. The limiting plate 62 is provided with a groove 26. The limiting plate 62 is slidably connected with a first connecting rod 50. The first connecting rod 50 is fixedly connected with a sliding block 51. The sliding block 51 is slidably connected with the first mounting cover 19. The sliding block 51 is rotatably connected with a fourth shaft 61. The fourth shaft 61 is rotatably connected with a clamping jaw 60. The clamping jaw 60 is located in a sliding groove 56 of the first mounting cover 19. Two clamping jaws 60 are provided with two limiting frames 57. The limiting frames 57 are slidably connected with the sliding block 51. The limiting frames 57 are fixedly connected with an extrusion rod 59. The two limiting frames 57 are connected through a second spring 58.

[0121] The first connecting rod 50 is fixedly connected with a threaded plate 49. The threaded plate 49 is threadedly connected with a reciprocating screw rod 23. The reciprocating screw rod 23 is rotatably connected with the second mounting cover 20. The reciprocating screw rod 23 is fixedly connected with a first gear 24. The first gear 24 is meshed with a crown gear 25.

[0122] The rotation of the crown gear 25 also drives the first gear 24 to rotate, the first gear 24 drives the reciprocating screw rod 23 to rotate, the reciprocating screw rod 23 drives the threaded plate 49 to move upwards, the threaded plate 49 drives the first connecting rod 50 to move upwards, thus the clamping jaw 60 drives the vibration hammer 52 to move upwards, the vibration hammer 52 drives the second connecting rod 53 to move upwards, the second connecting rod 53 drives the third connecting rod 55 to move upwards, thus the filter screen 31 forms an upper circular truncated cone, which can better undulate the filter screen 31.

[0123] When the clamping jaw 60 moves to a certain position, the clamping jaw 60 enters the recess 26, thus is opened, releases the vibration hammer 52, the vibration hammer 52 directly drops, thus hits the auxiliary disc, thus the filter screen 31 drops to form a lower circular truncated cone, and the auxiliary disc is also vibrated by being hit, which can better clean the filter screen 31.

[0124] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A control method for a mine-used wet full-range gas concentration enrichment power generation system, characterized by: The method comprises the following steps: S1: monitoring the water content of the gas: using a free water content detection instrument to monitor the water content of the gas raw material; when water is detected in the gas, it is introduced into a drying tower for drying treatment; S2: gas gas classification treatment: the dried gas is classified according to its methane concentration; S3: adsorption treatment: for 3%-30% of the gas, the mixed gas is introduced into a pressure coupling variable pressure adsorption tower for primary adsorption treatment; S4: desorption gas treatment: a methane concentration detection device and a carbon dioxide detection device are arranged in the buffer tank; S5: power generation and energy utilization: in the solid oxide fuel cell (12), the methane, hydrogen, and carbon monoxide mixed gas reacts with oxygen to generate an electric current; the generated electric current is used to heat the adsorbent, and the excess electric energy is stored in a lithium battery for standby; S6: safety monitoring and control: sensors are installed in the system to monitor the methane concentration, oxygen concentration, and humidity in real time; the explosion risk and gas leakage risk are evaluated in real time through the monitoring of the sensor data; when the explosion risk is detected, the system automatically closes the control valve and introduces carbon dioxide to reduce the explosion risk; S7: tail gas treatment: the tail gas is treated by a tail gas treatment system, and the methane and hydrogen gas in the tail gas are introduced into a combustion furnace for direct combustion.

2. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 1, characterized by: The gas concentration monitor is used to monitor the concentration of the raw material gas, and the system automatically selects the corresponding power generation mode according to the concentration of the raw material gas; when the methane concentration is greater than 30%, the dehumidified gas is introduced into a high-concentration gas power generation system through a control valve, and a direct combustion method is used to convert the energy with a conversion efficiency of about 30%; When the methane concentration is between 3% and 30%, the low-concentration gas is introduced into a low-concentration gas enrichment fuel power generation system, and a pressure coupling variable pressure adsorption method is used to efficiently enrich the gas, and a solid oxide fuel cell (12) is used as the power generation device to break through the Carnot cycle and achieve an energy conversion efficiency of 60%; When the methane concentration is less than 3%, the low-concentration gas is oxidized by a thermal oxidation method.

3. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 1, characterized by: The adsorption process further comprises real-time monitoring of the gas components and a nonlinear coupling device. For the input raw material gas, a nonlinear coupling model is used for optimization, and the process parameters in the adsorption tower are changed according to the gas concentration of the input gas to intelligently and efficiently enrich the gas for use. For gas with a concentration less than 8%, the nonlinear coupling model is used for optimization, the process parameters in the adsorption tower are changed, and the gas is then subjected to secondary adsorption treatment. If the concentration still does not reach 8%, the above steps are repeated. If the concentration reaches 8%, the subsequent treatment steps are entered. ​ ​ 4. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 1, characterized by: The desorption gas treatment also includes the concentration ratio of methane and carbon dioxide in the desorption gas, when the concentration ratio of methane and carbon dioxide in the desorption gas is not 1:1, carbon dioxide gas is introduced, the concentration ratio of methane and carbon dioxide in the desorption gas is adjusted to 1:1, and then the desorption gas is introduced into the desorption gas heat exchanger (9B) for introduction into the reforming reactor (11) for reforming; The exhaust gas is introduced into the exhaust gas heat exchanger (9A) for heating treatment.

5. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 1, characterized by: The combustion furnace comprises a second mounting cover (20), a conveying pipe (21) fixedly connected to the second mounting cover (20), a driving box (34) fixedly connected to the conveying pipe (21), a first rotating shaft (35) rotatably connected to the driving box (34), a driving plate (40) fixedly connected to the first rotating shaft (35), a second output pipe (36) fixedly connected to the driving box (34), and a first transfer box (37) fixedly connected to the second output pipe (36). The first rotating shaft (35) is fixedly connected with a crown gear (25), the crown gear (25) is engaged with a second gear (27), the second gear (27) is fixedly connected with a hollow pipe (38), and the hollow pipe (38) is rotatably connected with the first transfer box (37).

6. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 5, characterized by: The hollow pipe (38) is fixedly connected with a second transfer box (44); The second transfer box (44) is fixedly connected with a plurality of mounting boxes (28), the mounting boxes (28) are rotatably connected with a plurality of elbow pipes (42) and a second rotating shaft (43), the elbow pipes (42) and the third rotating shaft (48) are fixedly connected with a plurality of third gears (41), the third gears (41) are engaged, the mounting boxes (28) are rotatably connected with a third rotating shaft (48), the third rotating shaft (48) is fixedly connected with a fourth gear (45), and the fourth gear (45) is engaged with the third gear (41). The mounting boxes (28) are fixedly connected with a fifth gear at the bottom, the fifth gear is engaged with a gear ring (47), the gear ring (47) is fixedly connected with a mounting frame (46), the mounting frame (46) is rotatably connected with the third rotating shaft (48), the third rotating shaft (48) is rotatably connected with a support frame (29), and the support frame (29) is fixedly connected with the second mounting cover (28).

7. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 6, characterized by: The second mounting cover (20) is fixedly connected with a mounting ring (30) inside, the mounting ring (30) is fixedly connected with a filter screen (31) inside, the filter screen (31) is fixedly connected with a connecting disc (32) at the bottom, and the connecting disc (32) is fixedly connected with a third connecting rod (55) at the bottom. The second mounting cover (20) is fixedly connected with a first output pipe (22) on the right side.

8. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 7, characterized by: The second mounting cover (20) is fixedly connected with a first mounting cover (19). The second mounting cover (20) is fixedly connected with a first mounting cover (19). The first mounting cover (19) is internally fixedly connected with an auxiliary disc, the auxiliary disc is fixedly connected with a mounting ring (30), a second connecting rod (53) is slidably connected to the auxiliary disc, a connecting plate (33) is fixedly connected to the bottom of the second connecting rod (53), the connecting plate (33) is fixedly connected with a third connecting rod (55), and the auxiliary disc is connected with the connecting plate (33) through a first spring (54); The second connecting rod (53) is fixedly connected with a vibrating hammer (52) at the top, and the vibrating hammer (52) is slidably connected with the first mounting cover (19).

9. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 8, characterized by: The first mounting cover (19) is internally fixedly connected with a limiting plate (62), a groove (26) is formed in the limiting plate (62), a first connecting rod (50) is slidably connected to the limiting plate (62), a sliding block (51) is fixedly connected to the first connecting rod (50), the sliding block (51) is slidably connected with the first mounting cover (19), a fourth rotating shaft (61) is rotatably connected in the sliding block (51), a clamping jaw (60) is rotatably connected to the fourth rotating shaft (61), the clamping jaw (60) is located in a sliding groove (56) formed in the first mounting cover (19), two limiting frames (57) are arranged on the two clamping jaws (60), the limiting frames (57) are slidably connected with the sliding block (51), and an extrusion rod (59) is fixedly connected to the limiting frame (57).

10. The control method of a mine-used wet total range gas concentration enrichment power generation system according to claim 9, characterized by: The first connecting rod (50) is fixedly connected with a threaded plate (49) at the top, a reciprocating screw rod (23) is threadedly connected to the threaded plate (49), the reciprocating screw rod (23) is rotatably connected with a second mounting cover (20), a first gear (24) is fixedly connected to the reciprocating screw rod (23), and the first gear (24) is engaged with a crown gear (25).

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