82 results about "Gas management" patented technology

The invention provides an intelligent gas meter remote meter reading method and system based on the Internet of Things, and relates to the technical field of intelligent gas meters. The method comprises the following steps: collecting local metering data and Internet of Things transmission data; constructing a dual-source data multi-dimensional conflict identification system, and screening conflict data groups; performing accuracy verification on the conflict data group; an encrypted transmission channel is established, and the traceability of the data transmission process is realized; triggering a grading early warning mechanism for the abnormal usage data deviating from the baseline; and carrying out iterative updating on the meter reading data knowledge base, and carrying out remote calibration. According to the method, double-source data conflicts are identified through multiple dimensions, conflict data are corrected in combination with a hybrid model, metering accuracy is guaranteed, and disputes are reduced; through constructing a baseline model and a grading early warning mechanism, abnormal usage is accurately identified and disposed, hidden dangers are timely prevented, and service is excellent. Through dynamic on-demand remote calibration of equipment, the metering precision is guaranteed, the operation and maintenance cost is reduced, the user data transparency is improved, and intelligent gas management is assisted.

A method for managing energy-saving early warning of a smart gas flowmeter is provided. The method is executed by a smart gas management platform. The method comprises obtaining a remaining power of the smart gas flowmeter, determining a confidence level of the remaining power based on at least environmental data, determining a calibrated power by calibrating the remaining power based on the confidence level, determining whether to issue a power alert to a gas user based on the calibrated power, operation data of the smart gas flowmeter, and at least one reference correspondence. The reference correspondence represents a relationship between an operation behavior of the smart gas flowmeter and a power consumption. The method also comprises generating an energy-saving management and operation scheme of the smart gas flowmeter in response to a determination that the power alert is issued to the gas user.

An off-chain gas management system allows Web3 developers to cover gas fees for their users. When a user wants to complete a blockchain transaction, the system receives a sponsorship request through an API and checks if the operation qualifies under the developer's gas sponsorship policy. Policies include spending limits, approved addresses, and time restrictions. If approved, the system creates a cryptographic signature that authorizes transfer of the gas fee amount. An on-chain contract validates the signature before covering the gas fees. The system includes a user interface for creating and managing policies with configurable spending controls and address restrictions. Advanced features use machine learning to allocate funds based on user value, detect fraud, classify transaction types, optimize cryptocurrency purchases, and predict when funds will run out. This eliminates the barrier of users needing to own cryptocurrency to pay gas fees while maintaining security through automated policy enforcement and cryptographic validation.

The utility model relates to the technical field of gas control, in particular to a drilling blowout preventer for gas control, which comprises a single two-cavity pneumatic delay gas-water-slag separating device, one end of the outer surface of the single two-cavity pneumatic delay gas-water-slag separating device is fixedly connected with a fixing pipe, and one end of the fixing pipe is fixedly connected with a fixing flange. According to the drilling blowout preventer for gas control, due to the arrangement of the single two-cavity pneumatic time-delay gas-water-slag separation device, the fixing pipe, the connecting pipe, the positioning pipe and the air bag, when the drilling blowout preventer is used, the single two-cavity pneumatic time-delay gas-water-slag separation device can conduct two-stage separation on gas, water and slag, a two-cavity locking gas sealing chamber structure is adopted, and the gas-water-slag separation device can conduct two-stage separation on the gas, the water and the slag; a pneumatic delay valve element is used for acting according to a certain time period to alternately open and close water slag discharge port valves of the two cavities, gas, water and slag are automatically separated in the closed cavities, space body exchange in the extraction state is achieved, gas overflow is effectively eradicated, and gas alarm over-limit of the environment nearby drilling is prevented.

The invention relates to the field of coal mine gas treatment and utilization, and discloses a coal mine gas power station gas metering analysis system. The system comprises a flow metering unit based on a large-pipe-diameter V-cone flowmeter and differential pressure / pressure / temperature three parameters, a multi-point gas sampling and analyzing unit for cyclic sampling and parallel preprocessing, a methane concentration analyzing unit based on TDLAS and a redundant channel, a PLC metering and data integrity unit with an ms-level time reference and 64-bit high-precision calculation, and a data processing unit based on a redundant channel. A positive pressure purging explosion-proof control and alarm interlocking unit; and a local / cloud data issuing unit. The system solves the comprehensive problems of short straight pipe section, ultra-low concentration real-time analysis, continuous and reliable data and on-site explosion prevention, and the metering and safety management and control level of a gas power station is remarkably improved.

A method of additive manufacture is disclosed. The method may include restricting, by an enclosure, an exchange of gaseous matter between an interior of the enclosure and an exterior of the enclosure. The method may further include running multiple machines within the enclosure. Each of the machines may execute its own process of additive manufacture. While the machines are running, a gas management system may maintain gaseous oxygen within the enclosure at or below a limiting oxygen concentration for the interior.

The application provides a data communication method, device and storage medium. The method is applied to a gas device including a processing unit and a metering module. The method includes the following steps: obtaining function data, encapsulating the function data into a data frame by using a preset frame structure, sending the data frame to the metering module, and obtaining a response. Flexible data transmission is realized. The preset frame structure encapsulates data, which can accommodate more types of function data, realizes complex data interaction requirements, and thus improves the technical problem of insufficient data transmission capacity of a gas meter in the related art caused by strict limitation of the number of fields, which is difficult to meet the requirements of modern gas management systems on data richness, flexibility and expansibility, and improves the intelligent level of the gas metering device.

The invention discloses an oil and gas management off-grid electric valve with a methanol fuel cell, and relates to the technical field of oil and gas conveying pipeline control equipment, in particular to the oil and gas management off-grid electric valve with the methanol fuel cell. The device comprises an electric valve, a photovoltaic panel, an energy storage lithium battery, a methanol fuel cell and a methanol barrel which are arranged on an oil-gas pipeline. The photovoltaic panel converts light energy into electric energy to charge the lithium battery, and the lithium battery provides operation power for the valve. The methanol fuel cell is connected with the lithium battery and is started and stopped under the control of the voltage of the lithium battery. The device preferably further comprises a power management control system which is used for monitoring the voltage of the lithium battery, starting the fuel battery to charge the lithium battery when the voltage is lower than a lower limit, and closing the fuel battery when the voltage is higher than an upper limit, so that automatic management and supplement of energy are realized. According to the invention, a hybrid power supply mode with photovoltaics as a main mode and methanol fuel cells as an auxiliary mode is utilized, and the long-term off-grid stable power supply problem of oil and gas valves in remote areas is solved.

The invention discloses a heat storage type gas oxidation destroying device based on coal gangue waste heat driving, and relates to the technical field of coal mine solid waste resource utilization and gas treatment, the heat storage type gas oxidation destroying device comprises a support, the support is provided with a coal gangue combustion unit, a gas preheating unit, a heat storage oxidation unit, a gas pretreatment unit and an intelligent control unit, the coal gangue combustion unit comprises a discharged material conveying device, the coal gangue which is a solid waste is innovatively used as a core waste heat source, heat energy released by combustion of the coal gangue indirectly preheats heat storage oxidation destruction of low-concentration gas, and cooperative treatment of the two kinds of waste is achieved. On one hand, the resource utilization rate of the coal gangue is greatly improved, and spontaneous combustion pollution is avoided; and on the other hand, methane in ventilation air methane is efficiently decomposed, emission of massive greenhouse gas can be reduced every year, the dual environmental protection targets of solid waste reduction and gas waste purification are achieved from the source, and the environment cooperative treatment effect is remarkably superior to that of a traditional independent treatment mode.

The application provides a kind of wisdom gas terminal energy-saving control Internet of Things system and method, it is related to Internet of Things technical field, this method is based on the wisdom gas management platform of wisdom gas terminal energy-saving control Internet of Things execution, including: by wisdom gas object platform obtains the gas use data and gas image data of target user;Based on gas use data, gas image data determines combustion state distribution;In response to the combustion state distribution meets preset condition, based on combustion state distribution determines energy-saving parameter;And based on energy-saving parameter determines energy-saving instruction and driven adjustment instruction, to adjust the valve opening of valve control device based on energy-saving instruction and driven adjustment instruction.The combustion state is evaluated, and the energy-saving parameter is adjusted according to the state of combustion, so as to appropriately reduce the gas flow rate, in the case of ensuring that the provided gas flow rate meets the user demand, the effect of energy saving and environmental protection is achieved.

The application discloses a multi-mode gas management system, which comprises a pressure management system, a fuel supply control system, a reliquefaction control system, a reburning control system and a venting control system of a gas exhaust mast. The pressure management system is used for selection of a navigation pressure mode and a cargo hold pressure control mode. The fuel supply control system is used for providing fuel gas with stable pressure for power generation main engines and propulsion main engines. The reliquefaction control system lowers the BOG evaporation rate by lowering the temperature and pressure of the cargo hold, and deep-freezes and liquefies the BOG in the cargo hold. The reburning control system is used for protecting the pressure of the cargo hold. The venting control system of the gas exhaust mast is used for discharging gas into the atmosphere when the gas cannot be combusted and the ship is in the open sea. The application avoids unit pressure fluctuation interference in a mode, and guarantees safe and stable operation of an LNG transport ship.

The embodiments of the present disclosure provide methods and Internet of Thing systems for determining a gas leakage based on smart gas. The method may be implemented by a processor of a smart gas safety management platform based on an Internet of Things system for determining a gas leakage, comprising: obtaining first pipeline data located at a plurality of points of a gas pipeline network; determining a target pipeline section based on the first pipeline data; obtaining second pipeline data at both ends of the target pipeline section; determining a location of a gas leakage of the target pipeline section based on the second pipeline data; and feeding the location of the gas leakage back to a terminal of a gas management user.

A pistol comprising a frame, a slide operable to reciprocate with respect to the frame and having an upper surface and a forward end. A barrel received by the slide and having a muzzle spaced rearward from the forward end of the slide, and the upper surface of the slide being sloped upward forward of the muzzle of the barrel.

The invention relates to the technical field of mining engineering, and discloses a method for preventing harmful gas in fractures of a driving working face for underground coal mining, which comprises the following steps of: 1, determining fault and fracture trends, widths and influence ranges by geophysical exploration, drilling and drill rod exploration, and mastering distribution and occurrence states of gas and hydrogen sulfide; 2, according to the conditions of fracture gas and hydrogen sulfide, drilling treatment is conducted in a working moraine head or an ear tunnel drilling site; thirdly, an extraction system and an extraction pipeline are installed, and an extraction receiving and plugging material is prepared; fourthly, poisonous and harmful gas is extracted through moraine head drilling or ear way drilling; 5, comprehensive treatment is conducted through local ventilation, gas inspection, an extraction system, reinforcement supporting and long-distance blasting; the tunneling efficiency can be improved, the difficulty and safety risk of gas control are reduced, and the production cost of coal mining is reduced.

The utility model provides an intelligent control system for plasma spraying, which belongs to the technical field of spraying and comprises a control cabinet, and the control cabinet is used for controlling and monitoring a power supply cabinet, a gas management center, a powder feeder, a transfer box, a spray gun and a cooling unit. The power supply cabinet is connected with the spray gun through the transfer box and is used for generating plasma; the gas management center comprises a gas carrying pipeline, a plurality of gas pipes and a gas mixing structure, the gas carrying pipeline and the gas pipes are connected into the gas mixing structure, and the gas mixing structure is connected with the spray gun through a transfer box and used for providing plasma gas; the gas carrying pipeline is further provided with a branch pipe, and the branch pipe is communicated with the powder feeder. According to the scheme, the production data is monitored in real time, the parameters are dynamically corrected based on the production data, manual intervention is reduced, the amplitude threshold is adjusted according to the set parameters of all the components, sound-light alarm is triggered when the parameters exceed the set range, equipment overload is prevented, early fault positioning is achieved for key parameters of all the components, and the shutdown risk is reduced.

The present application provides a kind of high-pressure heat treatment device, it includes: internal chamber, the object to be carried out heat treatment is housed;External chamber, it is provided with: shell;And partition plate, the shell is divided into the high temperature area of the internal chamber and the low temperature area of the temperature lower than the high temperature area of the above-mentioned, and is provided with drain hole on the partition plate, the high temperature area and the low temperature area are communicated;Gas supply module, with the first pressure higher than atmospheric pressure, process gas for the heat treatment is supplied to the internal chamber, with the second pressure, protective gas is supplied to the external chamber, the setting of the second pressure is closely related to the first pressure;And discharge module, the opening of the drain hole is controlled, and the protective gas in the high temperature area is discharged to the low temperature area.

The embodiments of the present disclosure provide methods and Internet of Thing systems for determining a gas leakage based on smart gas. The method may be implemented by a processor of a smart gas safety management platform based on an Internet of Things system for determining a gas leakage, comprising: obtaining first pipeline data located at a plurality of points of a gas pipeline network; determining a target pipeline section based on the first pipeline data; obtaining second pipeline data at both ends of the target pipeline section; determining a location of a gas leakage of the target pipeline section based on the second pipeline data; and feeding the location of the gas leakage back to a terminal of a gas management user.

An automated inert gas management system (100) includes an inert gas container (102), control valves (110, 138), electronic pressure transmitters (106, 114, 136), and a controller (128) The inert gas container (102) stores and releases an inert gas into a tank (122) via a container valve (104). The control valves (110, 138) selectively inject and release the inert gas into / from the tank (122). The electronic pressure transmitters (106, 114, 136) continuously measure and transmit pressure values of the inert gas in the inert gas container (102) and the tank (122). The controller (128) determines a condition associated with the inert gas in the tank, for example, leakage, oil expansion, etc., based on the pressure values and one or more configurable parameters, and selectively actuates the control valves (110, 138) to maintain a pressure of the inert gas in the tank based on the determined condition.

1. Name of the product in this design: Safety Valve (KD-DN50). 2. Purpose of this design: Primarily an industrial pipeline valve for monitoring the internal pressure of natural gas pipelines and uploading the data to the gas company's system. It plays a role in safe gas management. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present application relates to a kind of wind speed prediction method based on coal mine underground gas data fluctuation similarity, belong to coal mine underground safety monitoring technical field, the method includes: at least 3 adjacent methane sensors of deployment in target roadway, collect gas concentration time series data and carry out pre-processing;Identify gas abnormal fluctuation event, extract the local and time sequence characteristics of fluctuation waveform by CNN-LSTM network, output high-dimensional feature vector;Fluctuation signal of the same source is matched using improved Siamese neural network, and the position time difference of characteristic waveform is calculated by DTW algorithm;Calculate single group wind speed in combination with sensor spacing, and obtain preliminary wind speed by weighted average;Through bayesian estimation, the optimization result of the gas concentration of multiple devices is fused, and then error feedback is realized to realize online optimization of model.The present application does not need to rely on special wind speed equipment, and has high prediction accuracy and strong robustness, can provide reliable data support for underground gas management and ventilation control.

A gas management system is disclosed. The gas management system according to the present embodiment includes a natural gas processing apparatus configured to separate heavy hydrocarbons contained in natural gas and a natural gas liquefaction apparatus configured to provide cold energy to the natural gas, and may reduce facility building and operation costs because the heavy hydrocarbons are separated by receiving the cold energy during a process of liquefying the natural gas without building a separate facility for separating the heavy hydrocarbons from the natural gas.

The utility model discloses a ventilation structure for coal bunker gas management, including the partial ventilator of the upper portion setting of coal bunker, partial ventilator connection telescopic air duct, the front section of telescopic air duct is vertical section telescopic air duct, and the vertical section telescopic air duct vertical natural droop stretches into the coal bunker, and the upper portion of vertical section telescopic air duct sets up first guide wheel, and one side of coal bunker sets up the winch of taking up and paying off, and the front of winch of taking up and paying off sets up second guide wheel, and the steel wire rope of winch of taking up and paying off is connected the front end of vertical section telescopic air duct after winding second guide wheel and first guide wheel, and the position sensor for monitoring the coal level of coal bunker is set up at the upper along of coal bunker, and position sensor electric connection controller, and controller electric connection winch of taking up and paying off. The utility model discloses can keep the fixed distance of telescopic air duct's telescopic and coal bunker coal level, can blow away the gas that coal body releases in coal bunker in time, avoids gas accumulation, causes gas accident, and avoids the dust flying of the air duct air outlet from coal body too close.

Aspects of the present invention relate to a battery enclosure gas management system. The battery enclosure gas management system comprises a gas displacer arranged to drive venting of gas that surrounds at least one of one or more battery cells in a battery enclosure. The venting is to outside of the battery enclosure via an exit vent of the battery enclosure. The gas displacer is selectively activatable to drive the venting.

The utility model provides a tail gas measurement and control system of a diesel generating set, which utilizes a power supply module to supply power to each functional module, an acquisition module sends acquired tail gas data discharged by the diesel generating set to a control module, the tail gas data is processed by the control module and then sent to a display module for visualization, and when the discharged tail gas data exceeds a preset threshold value, the display module displays the tail gas data. The control module sends an alarm starting instruction to the alarm module and sends a control instruction to a control assembly of the diesel generating set to control operation of the diesel generating set, and the alarm module gives an alarm according to the alarm instruction and sends the alarm to the diesel generating set tail gas management system platform through the communication module to manage data. The diesel generating set tail gas management system platform sends a control signal to the control module through the communication module so as to control a control assembly of the diesel generating set; remote monitoring and intelligent control can be carried out on tail gas emission of the diesel generating set in real time, and it is ensured that tail gas emission of the diesel generating set meets the environmental protection requirement.

The present application relates to the technical field of coffee processing, in particular to a coffee fresh fruit and fruit peel multi-strain synergistic fermentation equipment and process based on flavor guidance, comprising a fermentation tank main body, a stirring system, a temperature control system, a gas management system, a sensor integrated module, a multi-channel bacterial agent adding module and a control unit; the gas management system comprises an inert gas source, a sterile air source and a gas path control valve group for switching the gas path, which are communicated with the inside of the fermentation tank main body through pipelines; the multi-channel bacterial agent adding module comprises at least three independent bacterial agent storage tanks and a metering pump connected with the bottom discharge pipe of each bacterial agent storage tank. The present application can compound bacterial agents according to the preset viable count ratio through the cooperation of the three independent bacterial agent storage tanks and the high-precision metering pump; under the program driving of the control unit, the whole automatic switching fermentation process path from the establishment of the absolute anaerobic environment by nitrogen replacement to the switching of the sterile air and the maintenance of the set dissolved oxygen concentration can be completed by one key.

This invention discloses a device and method for accurately measuring the equivalent width of pre-drainage gas in roadways. The device is placed inside a borehole along the bedding plane to measure the gas emission velocity. A curve showing the relationship between the gas emission velocity and the corresponding borehole depth is plotted, allowing for accurate measurement of the equivalent width of pre-drainage gas in the roadway. This method fully considers factors such as coal seam gas pressure, gas content, ground stress, burial depth, and coal permeability. Utilizing the positive correlation between gas emission velocity and the equivalent width of pre-drainage gas in the roadway, the method achieves higher accuracy and faster measurement speed. It also aligns with common knowledge in coal mine gas management and offers advantages such as short testing time, high accuracy, and simple operation, enabling the measurement results to guide on-site gas disaster management in coal mines.

The embodiment of the invention discloses a post-irradiation corrosion test piece storage device and method.The post-irradiation corrosion test piece storage device comprises a double-layer sealed container, an inert gas management system, a humidity monitoring and maintaining system and a test rack, the double-layer sealed container comprises an acrylic layer and a stainless steel layer, and the inert gas management system is arranged on the acrylic layer; the acrylic layer is arranged on the inner side, the stainless steel layer is arranged on the outer side, the acrylic layer arranged on the inner side achieves visualization of the inner container on the premise that the permeability is low enough, workers can conveniently observe allochroic silicagel in the double-layer sealed container through a plurality of means, meanwhile, the stainless steel layer guarantees firmness and basic air tightness of the double-layer sealed container, and the double-layer sealed container is convenient to use. In the actual using process, the technical scheme can be continuously stored for 72 hours in a hot chamber high-temperature and high-humidity environment (40 DEG C / 80% RH), the internal oxygen concentration is stably lower than 85 + / -10 ppm, and the water vapor concentration is controlled to be 15 + / -3 ppm.

The application discloses a kind of intelligent scheduling management methods of gas, belong to the technical field of gas management system, including receiving scheduling information, scheduling information includes the data characteristics of scheduling target point;According to the data characteristics of scheduling target point, using neural network model, the dynamic change of gas demand is predicted and analyzed, and the priority of each scheduling target point is determined;According to the priority of scheduling target point, each scheduling target point is allocated corresponding scheduling time slice;Obtain gas pipe network operation information;According to gas pipe network operation information, the priority of scheduling target point and scheduling time slice, formulate gas emergency scheduling rule, realize the dynamic optimization and adjustment of gas scheduling.The application can dynamically adjust scheduling priority according to real-time situation, ensure that each scheduling target point can obtain timely, reasonable gas distribution.

The invention provides a dynamic balance controlled atmosphere fresh-keeping system and method for a refrigerator, and the system comprises a box body which is internally provided with a dynamic controlled atmosphere chamber; the multi-dimensional sensing module and the gas management module are arranged in the dynamic air conditioning chamber; the multi-dimensional sensing module is configured to obtain door body opening and closing data of the box body; the controller is connected to the multi-dimensional sensing module and the gas management module, and the controller is configured to determine the air intrusion amount by using an air intrusion amount model based on the door body opening and closing data; and based on the air invasion amount, the gas management module is used for maintaining the oxygen concentration in the dynamic air-conditioning chamber within a set range, and the pressure difference between the interior of the dynamic air-conditioning chamber and the exterior of the refrigerator body is maintained within a set pressure difference range, so that the problem that according to an existing air-conditioning fresh-keeping method of the refrigerator, high vacuum in the refrigerator body is maintained or high-purity nitrogen is continuously filled into the refrigerator body, and the refrigerator body cannot be kept fresh is solved. And the refrigerator is complex in structure, high in cost and large in energy consumption.

The application belongs to the technical field of gas management, and particularly discloses a monitoring method and device and equipment for civil gas data anomaly, which comprises a data acquisition unit, a gas use frequency detection unit, a gas use time detection unit, a gas use amount detection unit, a gas use instability detection unit, a data integration unit, a normal standard vector establishment unit and a result determination unit. Compared with the prior art, the application can analyze civil gas data, analyze the gas use behavior of users and the accuracy of the metering value of gas meters, effectively curb the behavior of users stealing gas, and monitor the gas meters to timely find the state of inaccurate metering anomaly of the gas meters.