2424 results about "Combustible gas" patented technology

The invention provides a gas leakage time-space correlation early warning method and system based on multi-modal data fusion, and relates to the technical field of data processing, and the method comprises the steps: collecting real-time concentration data and a historical leakage accident database through an NB-IoT combustible gas sensor network disposed at a key node of a gas pipe network; according to the real-time concentration data and a historical leakage accident database, a UTM projection coordinate system is adopted to carry out registration on geographic space data, a three-dimensional space mapping model of a pipe network topological structure is established, timestamp alignment is carried out on all dynamic monitoring data streams through an NTP clock synchronization protocol, and a time-space correlation standardized data set is formed. According to the invention, full-chain intelligent management of the gas leakage risk from sensing, prediction to disposal is realized.

The invention relates to a lithium battery energy storage system fire-fighting ventilation and explosion venting safety assessment method based on multi-dimensional simulation. The method comprises the following steps: constructing an energy storage system digital twinborn model fusing structure parameters, material attributes and environmental parameters; generating a multi-mode failure scene set covering multiple temperature domains and aging states through mode recognition; simulating and quantifying dynamic interaction of a temperature field, a flow field and a stress field in the thermal runaway evolution process based on thermal-fluid-solid multi-physics field coupling; constructing a space-time associated dynamic safety evaluation matrix, and combining fuzzy comprehensive evaluation and Monte Carlo sampling to generate risk quantitative indexes; and iteratively correcting parameters of the fire-fighting ventilation and explosion venting system through a multi-objective optimization algorithm to form a graded safety assessment conclusion. According to the method, the technical bottlenecks of environmental parameter splitting and single failure scene in a traditional method are broken through, the thermal runaway suppression efficiency is improved, the combustible gas concentration control error is reduced, and collaborative optimization of explosion venting pressure fluctuation suppression and ventilation response is realized through a closed-loop evaluation mechanism.

The invention discloses a BMS-based multifunctional integrated monitoring and fire control method and system, and the method comprises the steps: synchronously collecting the temperature, combustible gas concentration and dynamic environment monitoring data in a container through a BMU battery box management unit of a BMS, and generating a space-time correlated container environment state matrix; based on the environment state matrix, extracting temperature anomaly features, gas concentration gradient features and dynamic environment fluctuation features through a multi-modal feature fusion model, and constructing a multi-dimensional risk feature vector; inputting the multi-dimensional risk feature vector into a fire-fighting early warning optimization algorithm to generate a graded fire-fighting early warning signal; and according to the graded fire-fighting early warning signal, an active fire-fighting intervention strategy is triggered through a BMU unit of the BMS, a fire extinguishing device, a ventilation system and a power cut-off module are dynamically controlled, and a fire-fighting response path is synchronously optimized to be matched with the current risk grade. According to the embodiment of the invention, graded fire-fighting early warning can be realized, and the accuracy and timeliness of fire early warning are improved.

The invention discloses a self-adaptive calibration system and method for a combustible gas sensor. The self-adaptive calibration system and method are suitable for a catalytic combustion type combustible gas sensor. The system comprises a basic calibration unit, a real-time monitoring unit, a drift detection and compensation unit and an output adjustment unit. The basic calibration unit is used for carrying out basic calibration on the sensor and determining an initial sensitivity coefficient, zero offset and response time of the sensor; the real-time monitoring unit is used for monitoring real-time parameters of the sensor under different environmental conditions; the drift detection and compensation unit is used for establishing a sensor performance parameter drift model and calculating a calibration compensation coefficient; the output adjusting unit is used for adjusting the voltage output value of the sensor in real time according to the calibration compensation coefficient; the method can adapt to environment change for real-time calibration, effectively compensates sensor drift, improves measurement precision and reliability, prolongs the service life of the sensor, reduces maintenance cost, and improves system safety.

The invention provides a blast suppression method and system for an underground cavity of a pumped storage power station. The method comprises the following steps: configuring and deploying a multispectral gas sensor array; carrying out gas explosion limit calculation and risk assessment; calculating the risk level of explosion by using the prediction model; performing graded explosion suppression operation by using a graded explosion suppression execution module; combustible gas is guided to enter an inerting area by utilizing a space flow guide optimization module; and the ignition source blocking module is used for cooperative control to block an ignition source. The technical problems of low mixed gas explosion risk prediction and monitoring precision, low explosion suppression efficiency, slow response speed and relatively high operation and maintenance cost are solved.

The invention provides a factory energy safety dynamic monitoring method based on the Internet of Things and multi-mode perception, and belongs to the technical field of industrial Internet of Things. Comprising the following steps: acquiring electrical parameters, temperature data, combustible gas leakage concentration and vibration signals of equipment in real time; carrying out aggregation and protocol conversion on the electrical parameters, the temperature data, the combustible gas leakage concentration and the vibration signals through a multi-protocol intelligent gateway, and uploading the electrical parameters, the temperature data, the combustible gas leakage concentration and the vibration signals to a locally deployed edge computing node in a preset period; preprocessing the received data at the edge computing node, and generating a quantitative risk index based on a dynamic risk assessment model fusing the real-time state of the equipment, the historical aging trend and the environmental parameters; and carrying out risk grade judgment according to the quantitative risk index, and executing a corresponding grading response. Through fusion of multi-modal sensing data and edge intelligence, comprehensive sensing, real-time quantitative evaluation and hierarchical intelligent response of factory energy safety risks are realized.

The invention discloses a combustible gas monitoring and early warning method and system based on the Internet of Things, and relates to the technical field of combustible gas monitoring, and the method comprises the steps: obtaining the construction design information of a target region, and carrying out the equivalent division and the deployment of Internet of Things equipment; m combustible gas sensing data streams are obtained through monitoring of a regional sensing network; the method comprises the following steps: building combustible gas analysis dual channels including a gas concentration analysis channel and an escape situation analysis channel; presetting a combustible gas safety threshold value, and carrying out early warning judgment on the combustible gas sensing data flow to obtain combustible gas parameters of the area to be subjected to early warning; and constructing a multi-stage linkage early warning mechanism, and performing linkage early warning control on the combustible gas parameters of the to-be-early-warned area. The technical problems that in the prior art, monitoring area division is unreasonable, dynamic factors are not considered in data analysis, and a hierarchical and zoned linkage strategy is lacked, so that the accuracy and timeliness of monitoring and early warning are poor are solved, and the technical effect of improving the timeliness and accuracy of combustible gas monitoring and early warning is achieved.

The invention discloses an experimental device and an experimental method for combustible gas explosion discharge of a communicating container, and belongs to the field of combustible gas explosion protection. The experimental device comprises a communicated discharge container, a gas distribution system, a high-voltage ignition system, a data acquisition system, a high-speed schlieren system and a synchronous control system. The experimental device and the experimental method can be used for experimental research on combustible gas explosion release of the communicating container; the influence rules of factors such as static action pressure (Pstat), discharge caliber (Dv), discharge coefficient (Kv), spherical explosion container volume ratio (V1 / V2), communication pipeline length (L), communication pipeline diameter (D), fuel gas equivalence ratio (phi), ignition position (IIn) and ignition energy (E) on flammable gas explosion discharge overpressure and discharge flame are analyzed; and the formation factors of internal and external discharge overpressure peak values (a peak value Pb formed by rupture of a discharge diaphragm, a peak value Pex formed by external secondary explosion, a peak value Ph formed by Helmholtz oscillation, a peak value Pac formed by sound wave coupling and a peak value Pred formed by a maximum flame area), a discharge gas cloud structure, a discharge flame form and an external pressure wave evolution rule are explored.

The invention provides a combustible gas leakage protection system, which is characterized in that a control module of the combustible gas leakage protection system judges whether the concentration of combustible gas is lower than a first concentration threshold value or not when receiving concentration information detected by a concentration detection module, and generates a first control instruction when the concentration of the combustible gas is not lower than the first concentration threshold value. The control module further generates a second control instruction when the combustible gas concentration is not lower than a second concentration threshold value and the flame detection module detects that no open fire exists, and generates a third control instruction when the combustible gas concentration is not lower than the second concentration threshold value and the open fire exists. And the protection module executes different protection actions according to different control instructions of the control module. According to the application, the response scheme is divided into three grades, and corresponding protection strategies are implemented according to the detection signals of different grades, so that the response sensitivity and accuracy when the combustible gas leaks can be remarkably improved.

The invention belongs to the technical field of refrigerants, and provides a mixed refrigerant for replacing R290 and a preparation method and application thereof, the mixed refrigerant comprises a first component, a second component and a third component; the first component is trans-1, 2-difluoroethylene, the second component is 2, 3, 3, 3-tetrafluoropropene, and the third component is trifluoromethyl methyl ether; compared with R290 refrigerants in the prior art, the mixed refrigerant has the advantages that flammable and explosive components do not exist, and high-risk combustible gas clusters cannot be formed due to density layering after leakage, so that the mixed refrigerant has high safety performance, and the safety level can be not lower than A2L; the mixed refrigerant has the environment-friendly characteristic of low GWP, the GWP is smaller than or equal to 150, and the environment-friendly requirement is met; the thermophysical property and the refrigeration and / or heating cycle performance of the mixed refrigerant are similar to or better than those of R290; the mixed refrigerant can be used for directly replacing an R290 refrigerant.

An energy storage system includes an enclosure having a vent forming a flow path between an interior volume of the enclosure and an environment exterior to the enclosure. A vent covering is mounted proximate the vent and is selectively disposable over the vent such that the flow path is open when the vent covering is in an open position and closed when the vent covering is in a closed position. The vent covering can be biased to the open position and / or made of a thermally decomposable material. An actuator is coupled to the vent covering such that supply of power to the actuator causes the vent covering to assume the closed position and loss of power to the actuator causes the vent covering to assume the open position. A method comprises detecting a flammable gas and opening a first flow path by a first vent of the enclosure.

The invention discloses a combustible gas intelligent detection system and method based on a mobile robot. The system comprises an environment sensing module, a combustible gas detection module and a data analysis module. The environment sensing module obtains environment three-dimensional and gas concentration distribution data, carries out fusion processing to obtain an environment data set, constructs a three-dimensional model containing barrier and gas diffusion characteristics, and generates an inspection path based on the model by using a multi-objective optimization algorithm. The combustible gas detection module constructs a dynamic task adaptation model according to detection task requirements, generates a detection scheme based on an inspection path, and drives a mobile robot to execute detection to obtain multi-dimensional detection data. The data analysis module generates a gas risk detection report using an LSTM model based on the multi-dimensional detection data.

The invention discloses a gas leakage process dynamic parameter-based limited space combustion explosion consequence prediction method. The method comprises the following steps of: acquiring concentration and speed segmentation time sequence data in every delta t time period from gas leakage in each working condition; forming a three-dimensional primary ignition source array, and simplifying the ignition source array according to a blasting numerical simulation result; obtaining a maximum temperature field data set, a static pressure field data set and a dynamic pressure field data set on a typical section in the burning and explosion process; mapping the concentration and speed segmented time sequence data set to a maximum temperature field, static pressure field and dynamic pressure field data set to obtain a combustible gas leakage explosion result prediction data set, preliminarily establishing a combustion explosion result prediction model, and training; and collecting gas leakage concentration and speed time sequence data in the limited space, and inputting the data into the combustion explosion consequence prediction model to obtain a temperature, static pressure and dynamic pressure maximum value field in the combustion explosion process. According to the invention, automatic prediction of the maximum overpressure, the dynamic pressure and the temperature field in the explosion process after combustible gas leakage in a real-time or super-real-time limited space is realized, and the prediction result is accurate.

The invention relates to the technical field of submarine oil and gas pipeline leakage risk assessment, in particular to a submarine oil and gas pipeline leakage risk assessment and early warning method, an electronic device and a storage medium. The submarine oil and gas pipeline leakage risk assessment and early warning method comprises the following steps: acquiring first monitoring data through a sensor network deployed on a submarine oil and gas pipeline, determining a leakage section through the first monitoring data, and acquiring second monitoring data through a buoy sensor network deployed on the sea surface; constructing a feature vector and a deep neural network model, inputting the first monitoring data into the deep neural network model, and outputting first simulation leakage data; the method comprises the steps of constructing a pipeline physical model through design parameters and environmental conditions of submarine oil and gas pipelines; based on the first simulation leakage data and a pipeline physical model, second simulation leakage data are obtained through computational fluid dynamics (CFD) simulation; correcting the deep neural network model until the difference between the second monitoring data and the second simulated leakage data is within a set difference value by comparing the difference between the second monitoring data and the second simulated leakage data; constructing an offshore gas disaster analysis model by taking the simulated oil and gas leakage area as a boundary to obtain combustible gas cloud space distribution data; and calculating a comprehensive disaster risk index according to the combustible gas cloud space distribution data, and dividing risk grades according to the comprehensive disaster risk index for early warning. According to the method, the leakage point can be accurately identified, and intelligent risk early warning and evaluation are realized.

The invention relates to a high-flame-retardant, high-thermal-conductivity and high-toughening epoxy resin packaging adhesive and a preparation method thereof. A self-developed flame retardant containing nitrogen, phosphorus and sulfur is added into an epoxy resin system, rich carbon residues hinder mass and heat exchange in the combustion process and also hinder combustible gas from being released to a combustion area, free radicals containing phosphorus and sulfur can capture active free radicals (H * and OH *), and the chain reaction of combustion is ended. The surface modifier is used for modifying the layered graphene composite boron nitride micro-powder heat-conducting filler, so that the interface interaction between the filler and the resin matrix is synergistically enhanced, and the compatibility and the heat-conducting effect of the filler and the resin matrix are improved. And the modified toughening agent is added to ensure that the epoxy resin packaging adhesive has good toughness. In addition, through further exploration and innovation, the specific proportion range of the nitrogen-phosphorus-sulfur flame retardant, the modified layered graphene composite carbon nitride micro powder and the flexibilizer is determined. The epoxy resin packaging adhesive prepared by the invention has excellent flame retardance, heat conductivity and toughness.

The invention relates to the technical field of silicone rubber, and discloses flame-retardant and heat-insulating silicone rubber and a preparation method thereof.The flame-retardant and heat-insulating silicone rubber is obtained by reacting a flame-retardant aid with hollow glass beads and then adding the reaction product, methyl vinyl silicone rubber, hydroxyl silicone oil, a reinforcing agent, a flame retardant and a vulcanizing agent into an open mill to be mixed and vulcanized. The flame-retardant auxiliary agent contains a siloxane structural unit and is grafted on the surfaces of the hollow glass beads, so that the compatibility between the flame-retardant auxiliary agent and the methyl vinyl silicone rubber is improved, the hollow glass beads are more uniformly dispersed in a silicone rubber matrix, a uniform heat insulation network is formed, the heat conductivity is reduced, and the heat insulation performance is improved. The flame-retardant auxiliary agent contains nitrogen-rich triazine groups, and generates nitrogen and other non-combustible gases during combustion, so that the oxygen concentration of the combustion atmosphere can be diluted, and the limit oxygen index, flame retardance and high-temperature resistance of the silicone rubber are improved.

The utility model discloses a closed furnace system for converting household garbage incineration into new energy fuel gas, which comprises an incinerator, a scrubber tower, a cooling filter, an oil smoke and water vapor separation tower, a tar filter and a combustible gas decomposition purifier, the incinerator comprises a furnace body, and an incineration chamber for garbage incineration and a secondary combustion chamber for flue gas heating are arranged in the furnace body. Flue gas is led out from the secondary combustion chamber through a high-pressure induced draft fan and sequentially enters a scrubber tower, a cooling filter and an oil smoke and water vapor separation tower, a calcium carbonate solution is sprayed in the scrubber tower to conduct desulfurization and dust removal on the flue gas, the cooling filter conducts cooling and filtering on the flue gas, and the oil smoke and water vapor separation tower decomposes moisture and tar in the flue gas. The flue gas is sequentially connected into a tar filter and a combustible gas decomposition purifier through a Roots machine, an oil gas filter is arranged in the tar filter to filter tar in the flue gas, and a purification layer is arranged in the combustible gas decomposition purifier to remove foreign gas in the flue gas and purify the flue gas into new energy fuel gas. The method has the characteristic of efficient and environment-friendly garbage treatment.

The invention discloses a coal seam group occurrence three-area linkage gas extraction method. Firstly, a coal seam is divided into an underground coal gasification area, a pressure relief permeability increasing area and an original extraction area; in the initial stage of underground coal gasification, in the process that high-temperature combustible gas generated by underground coal gasification is injected into a ground drilling well, the high-temperature combustible gas and a coal body are subjected to heat transfer, so that the temperature of the coal body is increased, and gas desorption is enhanced; under the continuous coupling action of high temperature and high pressure of the high-temperature combustible gas, the permeability of the coal body is improved; in the process that high-temperature combustible gas is injected into the ground drilling well, gas extraction is continuously conducted on other adjacent drilling holes; under the condition that gas injection and gas extraction are sequentially and circularly performed in ground drilling, the coal body is circularly impacted by positive pressure-negative pressure alternating aerodynamic force, and further fracturing of the coal body is facilitated; under the triple effects of high-temperature coal body gas desorption strengthening, coal body permeability increasing and gas displacement, large-flow and high-quality extraction of deep coal seam gas is finally achieved.

The invention provides a portable fire blast risk dynamic identification and danger tracing method and terminal, and the method comprises the steps: collecting positioning data in real time through a GNSS positioning module; a high-speed analog-to-digital conversion chip ADC is used for carrying out high-frequency and synchronous processing on the gas concentration collected in real time; collecting field environment parameters in real time; performing dynamic threshold intelligent judgment to obtain a leakage judgment result, and executing a grading early warning mechanism; recording an inspection track in real time, and carrying out space gas concentration gradient analysis to obtain a gas concentration gradient; calculating a built-in space distance; judging the leakage direction according to the gas concentration gradient data, and intelligently tracing the leakage source according to the leakage judgment result; and uploading the security data to the cloud. According to the invention, the limitation of static and single-threshold alarm of an instrument is solved, and the technical problems of difficulty in spatial continuous sensing and automatic tracing positioning of gas leakage abnormity in a complex inspection environment with dynamic changes of multi-component combustible gas and environmental parameters are solved.

The invention discloses an energy storage multilayer intelligent fire early warning system based on battery module signal acquisition, and the system achieves the module-level multi-parameter real-time monitoring through integrating VOC, combustible gas, temperature and smoke sensors in a battery module. A multi-stage monitoring network is constructed by combining a container-level smoke-sensing / temperature-sensing detector and video monitoring; based on combined judgment of the threshold value and the rising speed, a third-level early warning strategy (first-level reporting, second-level manual fire extinguishing and third-level automatic fire extinguishing) is executed; after fire extinguishing, parameters are continuously monitored, secondary injection is automatically triggered, and after-combustion is effectively restrained. The problems of response delay (more than 20 seconds), module monitoring deficiency and high reburning rate in the prior art are solved, and thermal runaway second-level (less than or equal to 1 second) response and accurate prevention and control are realized.

The invention relates to a low-concentration combustible gas concentration system and an operation method thereof, and the low-concentration combustible gas concentration system comprises a flame arrester, a mixing cavity, a non-combustible gas supplementing tank, a gas compressor, a primary separator, a light component secondary separator, a heavy component secondary separator and a concentration regulating valve, the premixed gas sequentially passes through a primary separator, a light component secondary separator and a heavy component secondary separator under the action of a gas compressor to carry out concentration operation on light component combustible gas, non-combustible gas is returned to a mixing cavity, and heavy component gas is discharged into the atmosphere; the invention aims to solve the technical problems of large occupied area and volume, low operation efficiency and poor separation effect of the existing combustible gas separation equipment.

The utility model discloses an electric igniter for continuously purifying raw gas of a test furnace, which is characterized in that an electric heating wire is pre-embedded in a silicon-based ceramic heating body of the electric igniter and is formed by hot pressing and sintering, a power supply module provides a working power supply for the electric heating wire, a temperature control chip detects the temperature of the silicon-based ceramic heating body in real time, and the output power of the electric heating wire is controlled through a power regulator. Setting a heating curve in the test furnace according to a production process, communicating the temperature control chip with a PLC (Programmable Logic Controller) of the test furnace, and reading the set heating curve of the test furnace; and controlling the silicon-based ceramic heating body to output different powers through a power regulator according to each stage of the heating curve, so as to ensure that the raw gas generated in each stage is ignited and purified. According to the electric igniter and the control method, the defects of traditional raw gas combustion treatment are overcome, external combustible gas does not need to be introduced, reliable combustion of the raw gas is ensured, the electric igniter can work in a high-temperature and high-corrosion smoke environment for a long time, the service life is prolonged, and the purpose of safely discharging the raw gas is achieved.

The invention relates to the technical field of garbage treatment, in particular to a garbage low-carbon coupling treatment system and method.The method comprises the following steps that large wet materials and organic waste residues are separated from kitchen garbage, and the large wet materials are dried and put into a garbage incinerator to be combusted to release heat; fermenting the organic waste residues to obtain biogas which is used for burning and heating methanol liquid to generate methanol steam, mixing the methanol steam with water vapor, and performing catalytic hydrogen production to obtain mixed gas; the sludge is dried, a part of the dried sludge is put into a biomass gasifier to be subjected to coupled gasification with biomass waste to generate biomass gas, and the rest of the dried sludge is put into a garbage incinerator to be combusted together; and the mixed gas obtained through catalytic hydrogen production is separated, hydrogen and other combustible gas are obtained, and the biomass gas and the other combustible gas are fed into a garbage incinerator to be combusted together. According to the scheme, kitchen waste, sludge and biomass waste can be subjected to coupling treatment, and hydrogen is prepared.

The invention discloses a fire prevention and alarm system based on a multi-modal artificial intelligence model. The fire prevention and alarm system comprises a data acquisition module, a multi-modal fusion module, an artificial intelligence analysis module, an alarm module and a background management module. The data acquisition module acquires multi-modal data such as video image data, smoke concentration data, temperature data, humidity data and combustible gas concentration data; the multi-modal fusion module carries out fusion processing on the data to generate a multi-modal feature vector; the artificial intelligence analysis module analyzes the feature vectors based on a multi-modal artificial intelligence model, and outputs a fire occurrence probability and a risk level; when the alarm condition is met, the alarm module is started and sends alarm information to related personnel; the background management module carries out all-around management on the system. According to the invention, various modal data are fused, the artificial intelligence technology is utilized to realize early warning and accurate alarm of a fire disaster, related personnel can be prompted to take measures in time, fire disaster loss is reduced, and the system is suitable for various places needing fire disaster monitoring and has important fire safety value.

The invention provides a process method and system for directly capturing carbon dioxide from air and converting and utilizing the carbon dioxide. The process method comprises the following steps: adsorbing raw material gas through a carbon dioxide trapping device, and heating and desorbing to obtain purified carbon dioxide gas; the purified carbon dioxide gas and the electrolyte are subjected to electrocatalytic conversion to obtain synthesis gas, oxygen and condensate water, and the condensate water is recycled through water treatment operation to be used for supplementing the electrolyte; the method comprises the following steps: carrying out Fischer-Tropsch synthesis reaction, hydrocracking and isomerization reaction on synthesis gas to obtain an isomerized oil-gas mixture, wherein heat energy generated by the reaction provides heating desorption heat; and carrying out gas-liquid separation on the heterogeneous oil-gas mixture to obtain combustible gas and an upgraded oil product, carrying out rectification operation on the upgraded oil product to obtain an SAF component and a heavy oil product, and carrying out oxygen-enriched combustion reaction on the combustible gas and oxygen to provide heating desorption heat or supply required heat energy. An integrated and flexible industrial technology platform is developed, carbon capture and conversion processes are seamlessly connected, full-chain optimization from CO2 removal to high-added-value product generation is realized, and self heat energy requirements and wastewater utilization can be met.

The invention relates to the field of combustible gas alarm devices, in particular to a combustible gas alarm method and a combustible gas alarm device, and the device comprises an alarm device terminal which is integrated with a combustible gas detection end, an environmental parameter sensor, a scene recognition module and an alarm module; the central control module is electrically connected with the alarm device terminal, receives data acquired by the alarm device terminal, generates a control instruction and issues the control instruction; the air exhaust module is linked with the central control module and is used for receiving a control instruction sent by the central control module to realize intelligent air speed regulation; the wireless communication module is electrically connected with the central control module and the user terminal; and the execution module is electrically connected with the central control module, and an emergency execution unit is arranged in the execution module. Multi-source data is collected through the combustible gas detection end, the environmental parameter sensor and the flow velocity detection unit, gas leakage information is accurately captured in combination with multi-source data analysis, and compared with traditional single concentration detection, the false alarm rate is greatly reduced.

The invention discloses an agriculture and forestry solid waste baking semi-carbonization treatment process which sequentially comprises the steps of crushing, drying, feeding, preheating and drying, destructive distillation and carbonization, discharging, gas recovery and the like. The device comprises a spiral feeding cylinder, a feeding dispersing mechanism, a rotary inner cylinder, a fixed inner cylinder, a carbonization outer cylinder, a hot air inlet pipe, an air outlet, a waste heat return pipe, a vertical cylinder, a spiral discharging cylinder and a matched water cooling device, the rotary inner cylinder drives a fluted disc to rotate through a driving gear so as to achieve material turning, and the feeding dispersing mechanism adjusts the feeding position to avoid accumulation; the air outlet and the air outlet box recover the combustible gas and convey the combustible gas back to the combustion system for heating the carbonization outer cylinder; according to the invention, the cooperative operation effects of uniform drying of materials, full utilization of heat energy, improvement of carbonization efficiency and continuous and safe discharging are realized.

The invention discloses a preparation method of a smokeless flame-retardant fire blanket, and relates to the field of fire-fighting facilities, and the smokeless flame-retardant fire blanket is formed by compounding a surface layer, a middle layer and an inner layer; the preparation method of the smokeless flame-retardant fire blanket comprises the following steps: S1, preparing the surface layer: mixing the high-temperature-resistant silicone rubber with the solvent, the curing agent, the filler and the auxiliary agent, and uniformly stirring to form a silicone rubber coating solution; the high-temperature-resistant silicone rubber coating and the glass fibers are used as base materials, the inner layer is the macromolecular fire extinguishing material coating and has excellent fire extinguishing, heat insulating and high-temperature-resistant performance, the product is coated with multiple organic high-temperature-resistant silicone rubber, so that the organic high-temperature-resistant silicone rubber is tightly attached to the surfaces of the glass fibers, and a high-strength composite protective layer is formed; and a special polymer fire extinguishing material coating is further applied, and when exposed to open fire, the functional coating can quickly generate thermal decomposition reaction, release non-combustible gas and effectively reduce local oxygen concentration, so that the flame-retardant and fire-extinguishing effects are realized.

The utility model discloses a real gas supply system which is characterized by comprising a pure gas module, a mixed gas module and a component analysis module, the pure gas module is provided with a plurality of pure gas output interfaces which are used for outputting combustible gas or / and non-combustible gas and can be opened and closed; the gas mixing module comprises a real gas storage tank which is hermetically communicated with each pure gas output interface, the real gas storage tank is also provided with a real gas output interface which is provided with a control valve and a one-way valve, and the real gas output interface is used for being connected into a verification real gas circulating loop through a tee joint; the outer side wall of the solid gas storage tank is also provided with a component detection interface which is hermetically communicated with the inner cavity; the component analysis module comprises an opening and closing valve, a pressure reducing valve, a one-way valve and a gas chromatograph, and a component detection interface of the solid gas storage tank is sequentially and hermetically communicated with the opening and closing valve, the pressure reducing valve and the one-way valve through a pressure-resistant pipe and then hermetically communicated with a gas detection interface of the gas chromatograph. The utility model further discloses a real gas flow high and low temperature verification system comprising the real gas supply system.

The invention discloses an explosion-proof three-phase asynchronous motor which comprises a shell, a front end cover, a rear end cover, a stator, a rotor and a rotating shaft, wherein the stator, the rotor and the rotating shaft are arranged inside the shell. The radiating fins are arranged on the outer wall of the machine shell, the reciprocating lead screw transmission mechanism is connected through the supporting frame, the cleaning plate is driven to do reciprocating motion along the guide rod, dust on the radiating fins is automatically removed through the arc-shaped brush plate, and efficient radiating is ensured. The cooling box is arranged below the machine shell, the cooling box and the machine shell are designed to share the wall, an internal cooling pipe conveys cooled gas into the machine shell through a gas circulation system, the temperature is forcibly reduced, combustible gas is dispersed, and the anti-explosion safety is improved. The eccentric wheel on the rotating shaft drives the piston pipe to reciprocate, one-way flow of gas is achieved in combination with the non-return cover plate structure, and active gas circulation is formed in cooperation with the annular gas inlet channel and the gas outlet hole. The motor integrates self-cleaning heat dissipation and gas circulation cooling functions, adapts to high-temperature, high-humidity and closed environments, effectively reduces energy consumption, prolongs the service life of the motor, and is suitable for flammable and explosive places.