A biomass gasification fuel gas calorific value detection device

Abstract

The present invention relates to a biomass gasification fuel gas calorific value detection device applied to the field of chemical or physical analysis, comprising a device body, a sample chamber installed in the device body, a gas supply system installed at the front end of the device body and cooperating with the sample chamber, and a gas heat detection and processing system carried in the device body. The cooperation of the above-mentioned self-cleaning chamber assembly, dust collection box, cleaning chamber induction sealing group and self-cleaning chamber control unit can not only realize the automatic cleaning function of the device body, ensure its continuous application, and improve the detection accuracy of the device body, but also effectively reduce the investment of labor costs and the maintenance difficulty of the device body, and can also perform electrostatic adsorption on the biomass gasification fuel entering the sample chamber to remove dust and impurities, further improve the detection accuracy of the device body, improve the reliability of its real-time monitoring data, and ensure the safety of the application of biomass gasification fuel.

Description

Technical Field

[0001] The invention relates to a gas calorific value detection device, in particular to a biomass gasification fuel gas calorific value detection device applied in the field of chemical or physical analysis. Background Art

[0002] In the process of biomass gasification fuel application, in order to meet the purpose of real-time online monitoring of the calorific value of biomass gasification fuel gas, the commonly used biomass gasification fuel gas calorific value detection device is an infrared gas analyzer, which detects the concentration of gases such as carbon monoxide, hydrogen and low molecular weight hydrocarbons in the combustible gas through infrared rays, and multiplies the unit calorific value of each combustible gas by the volume fraction of the corresponding component. The sum of each gas is the calorific value of the mixed gas.

[0003] After long-term use, some dust and impurities will remain in the sample chamber of the infrared gas analyzer. If they are not cleaned in time, the accuracy of the infrared gas analyzer in detecting the calorific value of biomass gasification fuel gas will be directly affected.

[0004] The solution to the above problem in the prior art is to manually remove the sample chamber regularly for manual cleaning. This cleaning method not only increases the labor cost and the difficulty of maintaining the infrared gas analyzer, but also causes the infrared gas analyzer to interrupt the real-time monitoring of the calorific value of the biomass gasification fuel gas, which is not conducive to the sustainable application of the biomass gasification fuel. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to ensure the infrared gas analyzer's detection accuracy of the calorific value of biomass gasification fuel gas while promoting its automation and real-time monitoring function.

[0006] In order to solve the above problems, the present invention provides a biomass gasification fuel gas calorific value detection device, comprising a device body, a sample chamber installed in the device body, a gas supply system installed at the front end of the device body and matched with the sample chamber, and a gas heat detection and processing system carried in the device body, a self-cleaning chamber component and a cleaning chamber induction sealing group matched with the self-cleaning chamber component are arranged in the sample chamber, a dust box connected to the lower end of the sample chamber is fixedly connected, and the dust box and the cleaning chamber induction sealing group are matched;

[0007] A light source located at the rear side of the sample chamber is also fixedly installed in the device body, and an infrared detector located at the front side of the sample chamber is fixedly connected to the front end of the device body, and the light source and the infrared detector cooperate with each other;

[0008] The gas heat detection processing system includes a gas heat detection processing unit, the input end of the gas heat detection processing unit is connected to a photoelectric signal acquisition unit, a maintenance cycle setting unit and a chamber cleaning feedback unit, and the output end of the gas heat detection processing unit is connected to a sampling gas supply unit, a light source driving unit, an optical data detection unit and a self-cleaning chamber control unit;

[0009] The input end of the photoelectric signal acquisition unit is connected to the infrared detector signal, the input end of the maintenance cycle setting unit is connected to the touch display signal arranged at the front end of the device body, the input end of the cleaning chamber feedback unit is connected to the self-cleaning chamber component signal, the output end of the sampling gas supply unit is connected to the gas supply system signal, the output end of the light source driving unit is connected to the light source signal, the output end of the optical data detection unit is connected to the infrared detector signal, and the self-cleaning chamber control unit is respectively connected to the self-cleaning chamber component, the dust box and the cleaning chamber induction sealing group signal.

[0010] In the above-mentioned biomass gasification fuel gas calorific value detection device, not only can the device body be automatically cleaned to ensure its continuous application, but the biomass gasification fuel entering the sample chamber can also be electrostatically adsorbed to remove dust and impurities, further improving the detection accuracy of the device body.

[0011] As a supplement to the present application, the self-cleaning chamber assembly includes an induction ring fixedly connected to the front inner wall of the sample chamber, a plurality of driving support bars are fixedly connected to the front end of the induction ring, an electrostatic adsorption ring is fixedly connected to the front end of the driving support bar, and the outer diameter of the electrostatic adsorption ring is smaller than the inner diameter of the sample chamber, that is, the electrostatic adsorption ring is not in contact with the sample chamber, and the input end of the cleaning chamber feedback unit is connected to the electrostatic circuit signal that connects the electrostatic adsorption ring and the induction ring.

[0012] As a supplement to the present application, the cleaning chamber induction sealing group includes a guide push block fixedly connected to the front end of the electrostatic adsorption ring, the lower end of the guide push block abuts against the inner wall of the sample chamber and is in sliding fit, and an induction sliding cover groove cooperating with the dust box is opened on the lower side of the inner wall of the sample chamber, and an induction sealing sliding cover is slidably arranged in the induction sliding cover groove.

[0013] As a supplement to the present application, the self-cleaning chamber control unit includes a self-cleaning chamber processing module, the input end of the self-cleaning chamber processing module is connected to the information collection module, and the output end of the self-cleaning chamber processing module is connected to the electrostatic dust removal module, the dust dispersing module and the sealing control module;

[0014] The input end of the information acquisition module is respectively connected to the gas and heat detection processing unit, the unlocking sensing contact block embedded in the front end of the guide push block, and the abutting sensing block embedded in the front end of the induction sealing sliding cover;

[0015] The output end of the electrostatic dust removal module is connected to the electrostatic circuit signal that connects the electrostatic adsorption ring and the induction ring. The output end of the dust dispersion module is respectively connected to the drive support bar, the electrostatic dust removal module and the dust suction fan signal arranged at the rear end of the dust box. The output end of the sealing control module is respectively connected to the electromagnetic lock block signal embedded in the rear inner wall of the induction sliding cover groove and embedded in the rear end of the induction sealing sliding cover.

[0016] As a supplement to the present application, the gas supply system includes a vacuum cylinder fixedly installed on the front side of the device body, a vacuum pipe connected to it is fixedly connected to the right end of the vacuum cylinder, an air inlet pipe connected to it is fixedly connected to the rear end of the vacuum cylinder, the rear end of the air inlet pipe is connected to the sample chamber, and the front side of the left end of the sample chamber is also fixedly connected to an air outlet pipe connected to it. The output end of the sampling gas supply unit is respectively connected to the vacuum pump arranged in the vacuum cylinder, the electric control valve arranged on the vacuum pipe, the air inlet pipe and the air outlet pipe, and the gas recovery pump signal connected to the air outlet pipe.

[0017] As a further improvement of the present application, the input end of the gas and heat detection processing unit is also connected to a correction feedback unit, and the output end of the gas and heat detection processing unit is also connected to a self-correction control unit. The input end of the correction feedback unit is connected to the infrared detector signal, and the output end of the self-correction control unit is connected to the gas valve signal on the standard gas storage tank arranged in the device body, and the standard gas storage tank is connected and coordinated with the sample chamber, and the output end of the self-correction control unit is also respectively connected to the light source driving unit and the optical data detection unit signal.

[0018] As a further improvement of the present application, the output end of the correction feedback unit is also connected to a calibration error analysis and compensation unit, and the output end of the calibration error analysis and compensation unit is signal-connected to the gas and heat detection processing unit.

[0019] As a further improvement of the present application, the output end of the gas and heat detection processing unit is also connected to a data output unit and an abnormal alarm unit. The output end of the data output unit is connected to the touch display signal arranged at the front end of the device body, and the output end of the abnormal alarm unit is connected to the alarm signal arranged on the device body.

[0020] In summary, through the cooperation of the self-cleaning chamber assembly, the dust box, the cleaning chamber induction sealing group and the self-cleaning chamber control unit, not only can the device body be automatically cleaned when it is maintained, effectively ensuring the cleanliness of the sample chamber and improving the detection accuracy of the device body, but it can also effectively reduce the investment in labor costs, reduce the difficulty of maintenance of the device body, ensure the real-time monitoring of the calorific value of the biomass gasification fuel gas by the device body, and ensure its continuous application. In addition, when the device body detects the biomass gasification fuel, it can electrostatically adsorb the biomass gasification fuel entering the sample chamber to remove dust and impurities, thereby reducing the problem of errors in the detection results of the device body caused by dust and impurities remaining in the biomass gasification fuel, further improving the detection accuracy of the device body, improving the reliability of its real-time monitoring data, and ensuring the safety of the application of biomass gasification fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an axonometric view of the device body of the first and second embodiments of the present application;

[0022] Figure 2 This is a control logic diagram of the gas heat detection and processing system of the first and second embodiments of the present application;

[0023] Figure 3 Axonometric diagram of the sample chamber, self-cleaning chamber assembly and gas supply system of the first and second embodiments of the present application;

[0024] Figure 4 It is a front cross-sectional view of the cleaning process of the self-cleaning chamber assembly of the first and second embodiments of the present application;

[0025] Figure 5 It is a partial enlarged view of the cleaning chamber induction sealing group of the first and second embodiments of the present application when maintaining the sealing effect;

[0026] Figure 6 It is a partial enlarged view of the cleaning chamber induction sealing group of the first and second embodiments of the present application when the sealing lock is released by induction;

[0027] Figure 7 It is a partial enlarged view of the sealing release process of the chamber cleaning induction sealing group of the first and second embodiments of the present application;

[0028] Figure 8 It is a partial enlarged view of the cleaning chamber induction sealing group of the first and second embodiments of the present application when the sealing is completely released;

[0029] Fig. 9 It is a top view cross-sectional view of the sample chamber during the detection process of the first and second embodiments of the present application;

[0030] Fig.10Exploded diagram of the sample chamber of the first and second embodiments of the present application;

[0031] Fig.11 This is an exploded view of the sample chamber and self-cleaning chamber assembly according to the first and second embodiments of the present application.

[0032] Description of the numbers in the figure:

[0033] 1 device body, 2 sample chamber, 21 light source, 22 infrared detector, 23 induction slide slot, 3 self-cleaning chamber assembly, 31 electrostatic adsorption ring, 32 induction ring, 33 driving support bar, 4 gas supply system, 41 vacuum cylinder, 42 vacuum pipe, 43 air inlet pipe, 44 air outlet pipe, 5 dust box, 6 cleaning chamber induction sealing group, 61 induction sealing slide, 62 guide push block. DETAILED DESCRIPTION

[0034] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0035] The first implementation method:

[0036] Figure 1 - Fig.11 The device includes a device body 1, a sample chamber 2 installed in the device body 1, a gas supply system 4 installed at the front end of the device body 1 and matched with the sample chamber 2, and a gas heat detection and processing system carried in the device body 1. A self-cleaning chamber component 3 and a cleaning chamber induction sealing group 6 matched with the self-cleaning chamber component 3 are arranged in the sample chamber 2. A dust box 5 connected to the sample chamber 2 is fixedly connected at the lower end of the sample chamber 2. The dust box 5 is fixedly connected to the sample chamber 2 by bolts. When the device body 1 is undergoing an overhaul period or a shutdown maintenance period, the dust box 5 can be removed to clean the dust inside it, and the dust box 5 and the cleaning chamber induction sealing group 6 are matched;

[0037] A light source 21 located at the rear side of the sample chamber 2 is also fixedly installed in the device body 1, and an infrared detector 22 located at the front side of the sample chamber 2 is fixedly connected to the front end of the device body 1. The light source 21 and the infrared detector 22 cooperate with each other, and transparent insulating layers are provided at both ends of the sample chamber 2 to prevent the conduction of static electricity and electromagnetic inside the sample chamber 2, thereby ensuring the effectiveness of the application of the light source 21 and the infrared detector 22.

[0038] The gas heat detection processing system includes a gas heat detection processing unit, the input end of the gas heat detection processing unit is connected to a photoelectric signal acquisition unit, a maintenance cycle setting unit and a chamber cleaning feedback unit, and the output end of the gas heat detection processing unit is connected to a sampling gas supply unit, a light source driving unit, an optical data detection unit and a self-cleaning chamber control unit;

[0039] The input end of the photoelectric signal acquisition unit is connected to the infrared detector 22 signal, the input end of the maintenance cycle setting unit is connected to the touch display signal arranged at the front end of the device body 1, the input end of the cleaning feedback unit is connected to the self-cleaning chamber component 3 signal, the output end of the sampling gas supply unit is connected to the gas supply system 4 signal, the output end of the light source driving unit is connected to the light source 21 signal, the output end of the optical data detection unit is connected to the infrared detector 22 signal, and the self-cleaning chamber control unit is respectively connected to the self-cleaning chamber component 3, the dust box 5 and the cleaning chamber induction sealing group 6. Through the cooperation of the self-cleaning chamber component 3, the dust box 5, the cleaning chamber induction sealing group 6 and the self-cleaning chamber control unit, not only can the device body 1 be automatically cleaned when it is maintained. The function of the device body 1 is to effectively ensure the cleanliness of the sample chamber 2, improve the detection accuracy of the device body 1, and at the same time effectively reduce the investment in labor costs, reduce the maintenance difficulty of the device body 1, ensure the real-time monitoring function of the device body 1 on the calorific value of the biomass gasification fuel gas, and ensure its sustainable application. In addition, when the device body 1 detects the biomass gasification fuel, it can electrostatically adsorb the biomass gasification fuel entering the sample chamber 2 to remove dust and impurities, thereby reducing the problem of errors in the detection results of the device body 1 caused by dust and impurities remaining in the biomass gasification fuel, further improving the detection accuracy of the device body 1, improving the reliability of its real-time monitoring data, and ensuring the safety of the application of biomass gasification fuel.

[0040] Figure 3 - Figure 5The self-cleaning chamber assembly 3 is shown to include an induction ring 32 fixedly connected to the front inner wall of the sample chamber 2, and a plurality of driving support bars 33 are fixedly connected to the front end of the induction ring 32. The driving support bars 33 are composed of a thermal insulation elastic sleeve, a memory metal wire and an electric heating wire. The memory metal wire and the electric heating wire are fixedly connected in the thermal insulation elastic sleeve, and the front and rear ends of the thermal insulation elastic sleeve are fixedly connected to the electrostatic adsorption ring 31 and the induction ring 32 respectively. The output end of the ash dispersing module is connected to the electric heating wire signal, so that after the electric heating wire is energized to generate heat, the memory metal wire can drive the thermal insulation elastic sleeve to shrink and deform, thereby driving the electrostatic adsorption ring 31 to move. While the electrostatic adsorption ring 31 moves to absorb dust and impurities on the inner wall of the sample chamber 2, it can also move to the position of the dust box 5 and open the sealing position through the cooperation of the guide push block 62 and the induction sealing slide cover 61, so that after the electrostatic adsorption effect is released, the electrostatic adsorption ring 31 can remove the static electricity under the suction effect of the dust suction fan. The dust and impurities on the electric adsorption ring 31 fall into the dust storage box 5, and the sustainability of the application of the electrostatic adsorption ring 31 is maintained. The front end of the driving support bar 33 is fixedly connected to the electrostatic adsorption ring 31, and the outer diameter of the electrostatic adsorption ring 31 is smaller than the inner diameter of the sample chamber 2, that is, the electrostatic adsorption ring 31 does not contact the sample chamber 2, and the input end of the cleaning feedback unit is connected to the electrostatic circuit signal connecting the electrostatic adsorption ring 31 and the induction ring 32. The inner diameters of the electrostatic adsorption ring 31 and the induction ring 32 are both larger than the range of the infrared light beam generated by the light source 21, so that the infrared light beam will not be blocked by the electrostatic adsorption ring 31, the induction ring 32 and the driving support bar 33, thereby ensuring the effectiveness and reliability of the device body 1 in detecting the calorific value of biomass gasification fuel gas. The electrostatic adsorption ring 31 can produce an electrostatic adsorption effect to adsorb dust and impurities in the sample chamber 2, thereby ensuring the cleanliness of the sample chamber 2, reducing the detection error caused by dust and impurities, and improving the detection accuracy of the device body 1.

[0041] Figure 4 - Fig.11 The cleaning chamber induction sealing group 6 is shown to include a guide push block 62 fixedly connected to the front end of the electrostatic adsorption ring 31, the lower end of the guide push block 62 abuts against the inner wall of the sample chamber 2 and is in sliding cooperation, and an induction sliding cover groove 23 cooperating with the dust box 5 is opened on the lower side of the inner wall of the sample chamber 2, and an induction sealing sliding cover 61 is slidably arranged in the induction sliding cover groove 23, the setting of the guide push block 62 can not only release the sealing of the induction sealing sliding cover 61 on the dust box 5 during the movement of the electrostatic adsorption ring 31, thereby ensuring the cleaning effect of the electrostatic adsorption ring 31 and promoting its continuous application, but also can support and guide the movement of the electrostatic adsorption ring 31, thereby ensuring the dust absorption and impurity removal effect of the electrostatic adsorption ring 31 and the accuracy of subsequent movement, and the setting of the induction sealing sliding cover 61 can not only close the dust box 5, but also sense the position of the electrostatic adsorption ring 31, thereby ensuring the effectiveness of the electrostatic adsorption ring 31.

[0042] Figure 2 It is shown that the self-cleaning chamber control unit includes a self-cleaning chamber processing module, the input end of the self-cleaning chamber processing module is connected to the information collection module, and the output end of the self-cleaning chamber processing module is connected to the electrostatic dust removal module, the dust dispersing module and the sealing control module;

[0043] The input end of the information acquisition module is respectively connected to the gas and heat detection processing unit, the unlocking sensing contact block embedded in the front end of the guide push block 62, and the abutting sensing block embedded in the front end of the induction sealing sliding cover 61;

[0044] The output end of the electrostatic dust removal module is connected to the electrostatic circuit signal that connects the electrostatic adsorption ring 31 and the induction ring 32. The output end of the ash dispersion module is respectively connected to the drive support bar 33, the electrostatic dust removal module and the dust suction fan signal arranged at the rear end of the dust box 5. The output end of the sealing control module is respectively connected to the electromagnetic lock block signal that is embedded in the rear inner wall of the induction sliding cover groove 23 and embedded in the rear end of the induction sealing sliding cover 61. The cooperation of the information acquisition module, the electrostatic dust removal module, the ash dispersion module and the sealing control module can effectively realize the independent control of the chamber cleaning process and realize the two working modes of the self-cleaning chamber component 3. While enhancing its functionality and improving the detection accuracy of the device body 1, it can also effectively improve the automation and intelligence of the device body 1, reduce the maintenance difficulty and maintenance cost of the device body 1, ensure the continuous detection of the calorific value of the biomass gasification fuel gas by the device body 1, promote the real-time monitoring function of the device body 1, and thus effectively improve the safety of the application of biomass gasification fuel.

[0045] Figure 1 , Figure 3-5 , Fig.10 and Fig.11 The gas supply system 4 is shown to include a vacuum cylinder 41 fixedly mounted on the front side of the device body 1. An adsorption component can be arranged in the vacuum cylinder 41 to pre-treat the biomass gasification fuel, such as cooling, removing impurities, dehumidifying, etc., to ensure the cleanliness of the biomass gasification fuel entering the sample chamber 2 and reduce the problem of serious damage to the sample chamber 2. The right end of the vacuum cylinder 41 is fixedly connected to a vacuum pipe 42 connected thereto, and the rear end of the vacuum cylinder 41 is fixedly connected to an air intake pipe 43 connected thereto. The rear end of the air intake pipe 43 is connected to the sample chamber 2. The front left end of the sample chamber 2 is also fixedly connected to an outlet pipe 44 connected thereto. The output end of the sampling gas supply unit is respectively connected to the air pump arranged in the air pump cylinder 41, the electric control valve arranged on the air pump pipe 42, the air inlet pipe 43 and the air outlet pipe 44, and the gas recovery pump signal connected to the air outlet pipe 44. The setting of the gas supply system 4 can realize the extraction of biomass gasification fuel, and can ensure the real-time monitoring of the calorific value of the biomass gasification fuel gas by the device body 1, thereby ensuring the safety and effectiveness of the application of biomass gasification fuel.

[0046] Figure 2It is shown that the output end of the gas heat detection processing unit is also connected to a data output unit and an abnormal alarm unit. The output end of the data output unit is connected to the touch display signal arranged at the front end of the device body 1, and the output end of the abnormal alarm unit is connected to the alarm signal arranged on the device body 1. The cooperation between the data output unit and the abnormal alarm unit can effectively play a role in data detection and display, and play a role in auxiliary management and monitoring. It can also generate an abnormal alarm signal in time when the device body 1 detects abnormal data or itself has an abnormality, so as to promote the emergency response of relevant personnel.

[0047] Figure 1 - Fig.11 It is shown that when the device body 1 is used in a workshop to monitor the calorific value of biomass gasification fuel in real time, the relevant staff installs the device body 1 to the preset position, and then inputs the maintenance parameters of the device body 1 into the maintenance cycle setting unit through the touch display on the device body 1 according to the application environment of the device body 1. The parameters include but are not limited to the automatic maintenance cycle, the self-correction cycle, and the numerical standards of each maintenance and correction. The maintenance cycle setting unit transmits the maintenance parameters to the calorific value detection processing unit. After the parameter setting is completed, the device body 1 starts to be used.

[0048] After the device body 1 is started, the gas and heat detection processing unit first transmits the self-cleaning chamber instruction to the information collection module in the self-cleaning chamber control unit, so that the information collection module transmits the instruction data to the self-cleaning chamber processing module. After judging the instruction, the self-cleaning chamber processing module transmits the control instruction for starting electrostatic adsorption to the electrostatic dust removal module, so that the electrostatic circuit between the electrostatic adsorption ring 31 and the induction ring 32 is turned on, so that the electrostatic adsorption ring 31 can produce an electrostatic adsorption effect. Then, the gas and heat detection processing unit sends control instructions to the sampling gas supply unit, the optical data detection unit and the light source driving unit according to the sampling node, so that the sampling gas supply unit first opens the electric control valves on the exhaust pipe 42 and the air inlet pipe 43, and then starts the exhaust cylinder. The air pump in 41 extracts the biomass gasification fuel into the air pump 41 through the air pump pipe 42, and then transports it to the sample chamber 2 through the air intake pipe 43 after pretreatment by the air pump 41. After the quantitative extraction is completed, the sampling air supply unit controls the closing of the electric control valves on the air pump pipe 42 and the air intake pipe 43, and closes the air pump in the air pump 41. The biomass gasification fuel entering the sample chamber 2 will first contact the electrostatic adsorption ring 31. The electrostatic adsorption effect of the electrostatic adsorption ring 31 will perform dust removal and adsorption on the biomass gasification fuel again, further reducing the dust and impurities contained in the biomass gasification fuel, avoiding the subsequent influence on the infrared light beam detection, and then the light source driving unit controls the light source 21 to start , so that it emits an infrared beam into the sample chamber 2, and then the infrared beam is irradiated into the sample chamber 2, interacting with the gas molecules in the biomass gasification fuel, and the optical data detection unit simultaneously starts the infrared detector 22, and the infrared detector 22 receives and detects the infrared beam that interacts with the gas molecules in the biomass gasification fuel, and then converts the optical signal into an electrical signal and transmits it to the photoelectric signal acquisition unit, and the photoelectric signal acquisition unit processes and converts the received electrical signal and transmits it to the gas heat detection processing unit, and the gas heat detection processing unit judges the data, and then generates the detection result of the gas calorific value of the biomass gasification fuel, and controls the touch display to display the real-time monitored gas calorific value data through the data output unit. According to the data, after a single sampling test is completed, the gas and heat detection processing unit transmits the control instructions to the optical data detection unit and the light source driving unit respectively, so that the optical data detection unit controls the infrared detector 22 to turn off, and the light source driving unit controls the light source 21 to turn off, and then the gas and heat detection processing unit transmits the control instructions to the sampling gas supply unit, so that the sampling gas supply unit opens the electric control valve located on the outlet pipe 44, and then starts the gas recovery pump, so that the gas recovery pump extracts the biomass gasification fuel in the sample chamber 2 through the outlet pipe 44, and returns it to the original biomass gasification fuel storage position, while reducing the loss rate of the biomass gasification fuel, avoiding the biomass gasification fuel from polluting the working environment, and improving the environmental protection of the device body 1.

[0049] During the continuous use of the device body 1, the dust and impurities adsorbed on the electrostatic adsorption ring 31 gradually increase, and some unadsorbed dust and impurities will remain on the inner wall of the sample chamber 2. The gas heat detection processing unit sends a control instruction to the information acquisition module in the self-cleaning chamber control unit according to the maintenance parameters transmitted by the maintenance cycle setting unit during the sampling detection interval. The information acquisition module transmits the data received to the self-cleaning chamber processing module. After judging the instruction data, the self-cleaning chamber processing module first transmits the control instruction to the ash dispersing module. The ash dispersing module sends a control instruction to the driving support bar 33, so that the electric heating wire in the driving support bar 33 is energized to generate heat to act on the memory metal wire, so that the memory metal wire is deformed by heat, and the driving support bar 33 is contracted, with The electrostatic adsorption ring 31 moves in the direction close to the induction ring 32, and the electrostatic adsorption ring 31 moves in the guide download sample chamber 2 of the guide push block 62, and the guide push block 62 moves together with the electrostatic adsorption ring 31. When the guide push block 62 moves to abut the induction sealing slide cover 61, the unlocking induction contact block on the guide push block 62 transmits a trigger signal to the information acquisition module, and the information acquisition module transmits the data to the self-cleaning chamber processing module. The self-cleaning chamber processing module sends an unlocking control instruction to the sealing control module. The sealing control module controls the electromagnetic lock blocks located on the rear inner wall of the induction slide cover groove 23 and the rear end of the induction sealing slide cover 61 to cut off the power, and no electromagnetic adsorption effect is generated. At this time, the electrostatic adsorption ring 31 is continuously driven by the driving support bar 33. The electrostatic adsorption ring 31 will move during the movement in the sample chamber 2, and will continuously adsorb the dust and impurities on the inner wall of the sample chamber 2. The abutment between the guide push block 62 and the induction sealing slide cover 61 can make the guide push block 62 push the induction sealing slide cover 61 to move closer to the induction ring 32. After the induction sealing slide cover 61 moves to abut against the induction ring 32, the abutment sensing block located at the front end of the induction sealing slide cover 61 will generate an abutment signal and transmit it to the information collection module. The information collection module will transmit the data to the self-cleaning chamber processing module. The self-cleaning chamber processing module will transmit the control command to the ash dispersing module. The ash dispersing module will first control the dust suction fan located at the rear end of the dust box 5 to start, so that it will produce a suction effect, and then cut off the static electricity through the electrostatic dust removal module. The electrostatic circuit between the electrostatic adsorption ring 31 and the induction ring 32 makes the electrostatic adsorption ring 31 no longer produce electrostatic dust absorption effect, so that the dust and impurities absorbed on the electrostatic adsorption ring 31 fall into the dust box 5 under the action of the dust suction fan exhaust. After the electrostatic adsorption ring 31 is cleaned for a period of time, the dust dispersing module controls the electrostatic circuit between the electrostatic adsorption ring 31 and the induction ring 32 to be connected through electrostatic dust removal, so that the electrostatic adsorption ring 31 produces electrostatic adsorption effect, and then cuts off the current in the driving support bar 33, so that the heating wire in the driving support bar 33 is powered off and no longer generates heat. The continuous action of the dust suction fan can prevent the dust from flowing back from the dust box 5 on the one hand, and promote the heat dissipation of the driving support bar 33 on the other hand. Then, as the temperature recovers,The memory metal wire in the driving support bar 33 produces a restoring deformation, and the driving support bar 33 drives the electrostatic adsorption ring 31 to move away from the induction ring 32. After the electrostatic adsorption ring 31 drives the guide push block 62 to move, the guide push block 62 no longer contacts the induction sealing slide cover 61, so that the abutting induction block transmits a signal of abutment disappearance to the information acquisition module, and the information acquisition module transmits the data to the self-cleaning chamber processing module. The self-cleaning chamber processing module sends a control instruction to the sealing control module to control the electromagnetic lock blocks located on the rear inner wall of the induction slide cover groove 23 and the rear end of the induction sealing slide cover 61 to be energized, so as to generate an electromagnetic effect of mutual adsorption, and then under the action of the electromagnetic adsorption force, the induction sealing slide cover 61 slides in the induction slide cover groove 23 and gradually removes the accumulated dust. The dust box 5 performs a sealing action. When the inductive sealing slide cover 61 moves away from the electrostatic adsorption ring 31, the unlocking inductive contact block at the front end of the inductive sealing slide cover 61 no longer generates a trigger signal, so that the information acquisition module transmits data to the self-cleaning chamber processing module. The self-cleaning chamber processing module sends a control instruction to the heat dissipation module, so that the heat dissipation module controls the dust suction fan at the rear end of the dust box 5 to be turned off. Then the sealing control module keeps the electromagnetic lock blocks located at the rear inner wall of the inductive slide cover groove 23 and the rear end of the inductive sealing slide cover 61 in a constant power-on state, which can ensure the constant sealing action of the inductive sealing slide cover 61 on the dust box 5. At this time, the electrostatic adsorption ring 31 continuously moves and resets to the initial position under the action of the driving support bar 33 restoring the deformation, and maintains its electrostatic adsorption action, which is convenient for subsequent sampling detection.

[0050] During the application of the self-cleaning room control unit, the cleaning room feedback unit can collect the on-off state of the electrostatic circuit between the electrostatic adsorption ring 31 and the induction ring 32, and then transmit the collected data to the gas and heat detection processing unit, and assist the gas and heat detection processing unit in the state of the electrostatic adsorption ring 31 at this time, so that the gas and heat detection processing unit can judge the operation stability of the self-cleaning room control unit according to the electrostatic adsorption ring 31, and can ensure the position and electrostatic adsorption performance of the electrostatic adsorption ring 31 during sampling detection, effectively avoiding conflicts between the sampling detection and the cleaning process of the electrostatic adsorption ring 31, promoting the synergy of each unit, and improving the operation stability of the gas and heat detection processing unit.

[0051] Furthermore, during the process of the gas heat detection processing unit detecting the biomass gasification fuel, if the gas calorific value is unqualified, an abnormal signal is sent to the abnormal alarm unit, so that the abnormal alarm is activated and an alarm signal is sent to the relevant staff, thereby promoting the emergency response efficiency of the relevant staff and ensuring the stability and safety of the application of the biomass gasification fuel. At the same time, the gas heat detection processing unit compares and judges the signal transmitted by the cleaning room feedback unit and the control instruction issued by itself to the self-cleaning room control unit. When the power-on state is inconsistent, an abnormal signal is sent to the abnormal alarm unit, so that the abnormal alarm is activated and an alarm signal is sent to the relevant staff, thereby promoting the relevant staff to repair and maintain the device body 1 in time and ensure the normal operation of the device body 1. While the gas heat detection processing unit outputs the abnormal signal to the abnormal alarm unit, it also displays the abnormal data or abnormal symbol on the touch display through the data output unit, so that the relevant staff can view and identify the abnormal state and improve the effectiveness of the emergency response measures.

[0052] Second implementation method:

[0053] Figure 1 - Fig.11 It is shown that the input end of the gas heat detection processing unit is also connected to a correction feedback unit, and the output end of the gas heat detection processing unit is also connected to a self-correction control unit. The input end of the correction feedback unit is connected to the infrared detector 22 signal, and the output end of the self-correction control unit is connected to the gas valve signal on the standard gas storage tank arranged in the device body 1, and the standard gas storage tank is connected to the sample chamber 2. The output end of the self-correction control unit is also respectively connected to the light source drive unit and the light data detection unit signal. The connection method between the standard gas storage tank and the sample chamber 2 adopts another passage, which can realize ventilation and exhaust of gas into the sample chamber 2. This is the prior art. Those skilled in the art select and set the specific installation position according to actual needs, so it will not be repeated here. The gas in the standard gas storage tank adopts biomass gasification combustion. Stable and safe inert gas that is not contained in the material, such as connecting the outlet end of the standard gas storage tank to the upper end of the sample chamber 2, connecting the exhaust end to the lower end of the sample chamber 2, and controlling the inflow and outflow of the standard gas in the sample chamber 2 by the switch of the gas valve. The standard gas storage tank has its own pressure, which can biologically pump the standard gas, thereby reducing the manufacturing cost of the device body. The standard gas storage tank is replaceable, which is convenient for replacement. The setting of the self-correction control unit and the correction feedback unit can realize the self-inspection function of the device body 1. While the self-cleaning chamber assembly 3 cleans the device body 1, it can also calibrate and detect the detection accuracy of the device body 1 through the setting of the self-correction control unit, further increasing the automatic maintenance function of the device body 1 and ensuring the validity of the detection report of the device body 1.

[0054] Figure 2It is shown that the output end of the correction feedback unit is also connected to a calibration error analysis and compensation unit, and the output end of the calibration error analysis and compensation unit is signal-connected to the gas heat detection processing unit. The setting of the error analysis and compensation unit can timely compensate for the error when a detection error occurs in the device body 1, thereby effectively ensuring the reliability of the device body 1 for the biomass gasification fuel gas calorific value detection data and ensuring the detection accuracy of the device body 1.

[0055] Figure 1 - Fig.11 It is shown that during the application of the device body 1, the gas and heat detection processing unit will also send a self-correction control instruction to the self-correction control unit during the sampling interval according to the maintenance parameters, so that after receiving the self-correction control instruction, the self-correction control unit opens the gas valve of the standard gas storage tank to allow the standard gas to enter the sample chamber 2 through the correction channel, and then the self-correction control unit sends a self-correction control instruction to the optical data detection unit and the light source driving unit respectively, so that the light source 21 starts to emit an infrared beam into the sample chamber 2, and the infrared detector 22 starts to collect and convert the infrared beam data after the interaction of the standard gas in the sample chamber 2, and then transmits the signal to the correction feedback unit, which processes the signal and transmits it to the gas and heat detection processing unit and the calibration error analysis and compensation unit respectively, and the gas and heat detection processing unit At this time, the data of the sample chamber 2, the light source 21 and the infrared detector 22 are judged, the calibration error analysis and compensation unit calculates the calibration error, and then transmits the compensation data to the gas heat detection processing unit. When the gas heat detection processing unit judges that the error data is within the standard range, the detection data will not be compensated for the error in the subsequent gas calorific value detection of the biomass gasification fuel. When the gas heat detection processing unit judges that the error data exceeds the standard range and is within the compensable range, the detection data will be compensated for the error in the subsequent gas calorific value detection of the biomass gasification fuel. When the error data of the gas heat detection processing unit exceeds the standard range and is not within the compensable range, an abnormal signal is sent to the abnormal alarm unit, and correction data is sent to the data output unit, so that relevant personnel can promptly perform maintenance and repair on the device body 1.

[0056] And after the gas heat detection processing unit controls the self-correction control unit to complete the self-correction detection, it is judged that the self-correction data exceeds the standard range, and then the self-cleaning control unit controls the self-cleaning chamber component 3 to produce the cleaning and dust cleaning effects, and then re-controls the self-correction control unit to perform self-correction detection. The gas heat detection processing unit judges the detection data of the sample chamber 2, the light source 21 and the infrared detector 22 according to the data of the two self-corrections. If the self-correction data changes after the self-cleaning control unit controls the self-cleaning chamber component 3 to produce the cleaning and dust cleaning effects, such as the error data exceeds the standard range and is converting within the compensable range Until the error data is within the standard range, or the error data is converted from exceeding the standard range and not within the compensable range to exceeding the standard range and within the compensable range, the gas heat detection processing adjusts the cycle and frequency of the self-cleaning chamber cleaning, and readjusts the frequency of cleaning the electrostatic adsorption ring 31 to ensure the accuracy of the subsequent gas calorific value detection of the biomass gasification fuel; if the self-correction data remains unchanged after the self-cleaning control unit controls the self-cleaning chamber component 3 to produce the cleaning and cleaning effects, the error data is processed in the above manner, such as error compensation or abnormal alarm, so as to improve the effectiveness of the self-correction of the device body 1.

[0057] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A biomass gasification fuel gas calorific value detection device, characterized in that: The invention comprises a device body (1), a sample chamber (2) installed in the device body (1), a gas supply system (4) installed at the front end of the device body (1) and cooperating with the sample chamber (2), and a gas heat detection and processing system carried in the device body (1); a self-cleaning chamber component (3) and a cleaning chamber induction sealing group (6) cooperating with the self-cleaning chamber component (3) are arranged in the sample chamber (2); a dust collection box (5) connected to the sample chamber (2) is fixedly connected at the lower end, and the dust collection box (5) and the cleaning chamber induction sealing group (6) cooperate with each other; A light source (21) located at the rear side of the sample chamber (2) is also fixedly installed in the device body (1), and an infrared detector (22) located at the front side of the sample chamber (2) is fixedly connected to the front end of the device body (1), and the light source (21) and the infrared detector (22) cooperate with each other; The gas heat detection processing system includes a gas heat detection processing unit, the input end of the gas heat detection processing unit is connected to a photoelectric signal acquisition unit, a maintenance cycle setting unit and a chamber cleaning feedback unit, and the output end of the gas heat detection processing unit is connected to a sampling gas supply unit, a light source driving unit, an optical data detection unit and a self-cleaning chamber control unit; The input end of the photoelectric signal acquisition unit is signal-connected to the infrared detector (22), the input end of the maintenance cycle setting unit is signal-connected to the touch display arranged at the front end of the device body (1), the input end of the cleaning feedback unit is signal-connected to the self-cleaning chamber component (3), the output end of the sampling gas supply unit is signal-connected to the gas supply system (4), the output end of the light source driving unit is signal-connected to the light source (21), the output end of the optical data detection unit is signal-connected to the infrared detector (22), and the self-cleaning chamber control unit is signal-connected to the self-cleaning chamber component (3), the dust box (5) and the cleaning chamber induction sealing group (6) respectively; The self-cleaning chamber assembly (3) comprises an induction ring (32) fixedly connected to the front inner wall of the sample chamber (2); a plurality of driving support bars (33) are fixedly connected to the front end of the induction ring (32); an electrostatic adsorption ring (31) is fixedly connected to the front end of the driving support bar (33); and the outer diameter of the electrostatic adsorption ring (31) is smaller than the inner diameter of the sample chamber (2), that is, the electrostatic adsorption ring (31) is not in contact with the sample chamber (2); and an input end of the cleaning chamber feedback unit is connected to an electrostatic circuit signal that connects the electrostatic adsorption ring (31) and the induction ring (32); The cleaning chamber induction sealing group (6) comprises a guide push block (62) fixedly connected to the front end of the electrostatic adsorption ring (31); the lower end of the guide push block (62) abuts against the inner wall of the sample chamber (2) and is in sliding engagement; the lower side of the inner wall of the sample chamber (2) is provided with an induction sliding cover groove (23) that is in engagement with the dust storage box (5); an induction sealing sliding cover (61) is slidably arranged in the induction sliding cover groove (23); The self-cleaning chamber control unit includes a self-cleaning chamber processing module, the input end of the self-cleaning chamber processing module is connected to the information collection module, and the output end of the self-cleaning chamber processing module is connected to the electrostatic dust removal module, the dust dispersing module and the sealing control module; The input end of the information acquisition module is respectively connected to the gas heat detection processing unit, the unlocking sensing contact block embedded in the front end of the guide push block (62), and the abutment sensing block embedded in the front end of the induction sealing sliding cover (61); The output end of the electrostatic dust removal module is connected to the electrostatic circuit signal that is connected to the electrostatic adsorption ring (31) and the induction ring (32); the output end of the dust dispersing module is respectively connected to the drive support bar (33), the electrostatic dust removal module and the dust suction fan signal arranged at the rear end of the dust storage box (5); the output end of the sealing control module is respectively connected to the electromagnetic lock block signal that is embedded in the rear inner wall of the induction sliding cover groove (23) and embedded in the rear end of the induction sealing sliding cover (61); The gas supply system (4) comprises a vacuum cylinder (41) fixedly mounted on the front side of the device body (1); the right end of the vacuum cylinder (41) is fixedly connected to a vacuum pipe (42) connected thereto; the rear end of the vacuum cylinder (41) is fixedly connected to an air inlet pipe (43) connected thereto; the rear end of the air inlet pipe (43) is connected to the sample chamber (2); the front left end of the sample chamber (2) is also fixedly connected to an air outlet pipe (44) connected thereto; the output end of the sampling gas supply unit is respectively connected to a vacuum pump arranged in the vacuum cylinder (41), an electric control valve arranged on the vacuum pipe (42), the air inlet pipe (43) and the air outlet pipe (44), and a gas recovery pump signal connected to the air outlet pipe (44).

2. A biomass gasification fuel gas calorific value detection device according to claim 1, characterized in that: The input end of the gas heat detection processing unit is also connected to a correction feedback unit, and the output end of the gas heat detection processing unit is also connected to a self-correction control unit. The input end of the correction feedback unit is connected to the infrared detector (22) signal, and the output end of the self-correction control unit is connected to the gas valve signal on the standard gas storage tank arranged in the device body (1), and the standard gas storage tank is connected to the sample chamber (2). The output end of the self-correction control unit is also connected to the light source driving unit and the light data detection unit signal.

3. A biomass gasification fuel gas calorific value detection device according to claim 2, characterized in that: The output end of the correction feedback unit is also connected to a calibration error analysis and compensation unit, and the output end of the calibration error analysis and compensation unit is signal-connected to the gas heat detection processing unit.

4. The biomass gasification fuel gas calorific value detection device according to claim 1, characterized in that: The output end of the gas heat detection processing unit is also connected to a data output unit and an abnormal alarm unit, the output end of the data output unit is connected to a touch display signal arranged at the front end of the device body (1), and the output end of the abnormal alarm unit is connected to an alarm signal arranged on the device body (1).

Images