434 results about "Gas chamber" patented technology

The invention provides a device and method for removing aerosol based on a charged spraying coupling pool washing mechanism, and belongs to the field of nuclear auxiliary systems. The problem that radioactive aerosol particles generated when a radioactive contamination structure in a reactor is cut underwater can be released into the external environment is solved. Wherein the underwater laser cutting assembly is used for cutting a to-be-cut piece; the auxiliary gas chamber is communicated with the laser cutting nozzle; the aerosol charging assembly can enable aerosol particles generated by underwater laser cutting to carry negative charges; the baffle can gather the aerosol particles and guide the aerosol particles to the aerosol charging assembly; the liquid drop charged spraying assembly can spray liquid drops carrying positive charges, the liquid drops carrying positive charges and aerosol particles carrying negative charges can attract each other and fall to the liquid level, and the Venturi washing assembly can extract gas above the liquid level and spray the gas below the liquid level. The device can efficiently remove radioactive aerosol particles generated by cutting and disassembling radioactive contaminated components in a nuclear power plant, and radioactive contamination to the environment is prevented.

The utility model provides a gas inlet device which is used for transmitting reaction gas into a reaction chamber and comprises a guide plate and a gas uniformizing chamber, the guide plate is arranged at the top in the gas uniformizing chamber and comprises a center area and an edge area, the edge area is provided with a first through hole for the reaction gas to pass through, and after the reaction gas passes through the guide plate, the first through hole is communicated with the gas uniformizing chamber. And the gas flows into the reaction chamber through the gas uniformizing chamber. According to the gas inlet device, when reaction gas enters the gas inlet device, mutual pollution between pipelines and cyclones generated by gas convection can be reduced, so that the reaction gas is mixed more sufficiently, gas flowing is more stable, the flow of center gas can be reduced, the gas flowing is more uniform, and the uniformity of the gas reaching the surface of a wafer is improved.

The invention relates to the technical field of inverters, and particularly discloses a photovoltaic inversion and energy storage integrated system comprising a sealing plate which is rotatably installed on the inner wall of an integrated box. The driving mechanism is used for controlling the sealing plate to turn over; a plurality of air chambers are formed in the side wall of the integrated box, and a plurality of air outlet holes are formed between the integrated box and the air chambers; and the blowing mechanism is mounted in the side wall of the integrated box. When fire occurs in the integrated box, the driving mechanism drives the sealing plate to turn upwards to seal the heat dissipation opening, meanwhile, the sealing plate drives the air blowing mechanism to blow gaseous carbon dioxide in the air chamber into the integrated box, and fire extinguishing treatment is conducted through the closed space and the carbon dioxide. Therefore, electrical elements on the inversion equipment and the energy storage equipment are effectively prevented from encountering low temperature after encountering high temperature, the temperature is slowly reduced from the beginning high temperature, the internal temperature does not change quickly, and the electrical elements are effectively prevented from being damaged due to quick change of the temperature.

The invention belongs to the technical field of carbon dioxide energy storage, and particularly relates to a supercritical carbon dioxide energy storage system with combined cooling, heating and power, which realizes combined cooling, heating and power by recycling waste heat of a combined cooling, heating and power system and improves the energy utilization rate of the system. Carbon dioxide generated by the combined cooling heating and power system is captured and stored in the exhausted oil and gas reservoir high-pressure gas chamber and the exhausted oil and gas reservoir low-pressure gas chamber through the carbon dioxide capturing system, energy is stored through the stored carbon dioxide gas, and the stability maintaining effect on electric energy is achieved while carbon emission is reduced. The energy release unit is in heat exchange connection with the carbon dioxide capture system, the temperature of high-pressure carbon dioxide in the energy release stage is increased, and the comprehensive energy utilization rate and efficiency of the system are further improved.

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.

The invention discloses an SF6 electrification tendency determination method based on humidity variation. The SF6 electrification tendency determination method comprises the following steps: detecting a humidity value D1 of SF6 gas in a gas chamber; and mixing the SF6 gas with the SF6 standard gas with the humidity value of D'according to a set proportion. And detecting the humidity value D2 of the mixed gas obtained by mixing. And according to D1 and D ', calculating a humidity value D3 of the mixed gas under the condition of no electrification tendency. And according to the D2 and the D3, judging whether the SF6 gas has an electrification tendency or not. According to the method, based on the principle that SF6 <-> and H2O are combined after partial discharge, the SF6 gas humidity in the gas chamber is detected, and the variation of the actually measured humidity value and the theoretical value after the SF6 insulating gas and the SF6 gas with the certain humidity are mixed according to the fixed proportion is analyzed, so that the electrification tendency of the SF6 gas is obtained, and technical support is provided for distinguishing the partial discharge degree based on the SF6 gas humidity.

The invention discloses a method for measuring the electrification tendency of SF6 gas. The method comprises the following steps: measuring the humidity D1 of the SF6 gas in a gas chamber; and establishing a frost layer by adopting uncharged SF6 gas with the humidity of D2. The SF6 gas in the gas chamber and the uncharged SF6 gas with the humidity of D2 are mixed according to a set proportion to obtain first mixed gas, the first mixed gas is led to the frost layer, and the time T required by the first mixed gas for changing the thickness of the frost layer is measured. Leading a second mixed gas obtained by mixing the uncharged SF6 gas with the humidity of D1 and the uncharged SF6 gas with the humidity of D2 according to a set proportion to the frost layer, and measuring the time T1 required by the second mixed gas to change the thickness of the frost layer. And judging whether the SF6 gas in the gas chamber has an electrification tendency or not according to the T and the T1. According to the invention, based on the principle that SF6 <-> and H2O are combined after partial discharge, SF6 gas with certain humidity is taken as reference gas, and by measuring the elimination time for reducing a cold mirror frost layer of the reference gas to a specific thickness, the electrification tendency of the SF6 gas in the gas chamber can be measured.

The invention belongs to the technical field of sewage treatment, particularly relates to phase-change deoxidization and deamination equipment and a phase-change deoxidization and deamination method based on sewage treatment, and aims to solve the problems that wastewater is difficult to completely contact with phase-change deoxidization fibers in a wastewater flowing process, so that the deoxidization effect is influenced in deoxidization operation, and the operation and the safety of the equipment are influenced, the following scheme is provided: the phase-change deoxidization and deamination equipment comprises a shell, end shells are arranged at the two ends of the shell correspondingly, purging pipes are fixedly connected to the outer walls of one sides of the two end shells correspondingly, and purging air bins are fixedly connected to one ends of the two purging pipes correspondingly. The phase change deoxidization and deamination equipment and method based on sewage treatment have the effect of improving the sewage treatment effect, and during use, the device can disturb flow of wastewater in the sewage pipe bin, so that the contact effect of the wastewater and the deoxidization fiber body is improved when the wastewater flows; further, the degassing effect of the deoxidizing fiber on gases such as oxygen and ammonia gas in the wastewater is improved, and the using effect of the device is improved.

The invention relates to the technical field of atomic gas chamber preparation, and discloses atomic gas chamber preparation equipment and method and an atomic gas chamber. The equipment comprises a vacuum box, a wafer bonding machine and an alkali metal injection device, the alkali metal injection device comprises a vacuum pump, an injection valve body, a heating piece, a vacuum firing pin and a vacuum probe row, the alkali metal injection and bonding process is carried out in a vacuum environment, and the situation that oxygen in the atmospheric environment oxidizes alkali metal and influences the quality of an atomic gas chamber can be effectively avoided; and meanwhile, external particulate matters are prevented from contaminating between the gas chamber component and the gas chamber sealing plate to influence the bonding effect and sealing performance, and the leakage rate of the atomic gas chamber can be effectively reduced, that is, the atomic gas chamber prepared by the atomic gas chamber preparation equipment is relatively high in yield and preparation efficiency.

The invention relates to a gas discharge detection method, system and equipment based on an ultraviolet spectrum and a medium. The method comprises the following steps: transmitting a frequency-modulated ultraviolet light beam to a gas chamber to be detected, synchronously collecting and processing a transmission light signal in a branching manner, and simultaneously obtaining a modulated spectrum signal for gas absorption analysis and a discrete photon pulse signal for detecting a discharge event; respectively processing the two paths of signals, and extracting sulfur dioxide concentration information and photon radiation characteristics; fusing the two types of features to construct a dynamic feature vector, and obtaining a discharge state grade by using a dynamic Bayesian network diagnosis model; and finally, combining the concentration and state information, and outputting the membership degree of the discharge duration through fuzzy logic. By adopting the method, the fast process and the slow process of partial discharge can be cooperatively monitored, and the early detection sensitivity and the diagnosis reliability are improved.

The invention provides a biomass gasification system and a fluidized bed gasification process, the system comprises a fluidized bed gasification furnace, a cyclone separator and a material returning leg, the fluidized bed gasification furnace is provided with a gasification cavity and a gas chamber, and a fluidized bed formed by bed materials is arranged in the gasification cavity. Bed materials are added into the gasification furnace in a spiral feeding and pneumatic conveying combined mode, a fluidized bed is established, biomass particles are added after temperature rise, the pressure in the gasification furnace is kept to be certain, and an auxiliary gasification agent enables the biomass particles to be in a fluidized state. According to the invention, the melting characteristic of biomass ash can be effectively improved, the problem of easy slag bonding during biomass gasification is solved, the gasification temperature is effectively increased, and the methane content in the synthesis gas is reduced. The bed material can catalytically crack tar generated in the biomass gasification process, the quality of synthesis gas is optimized, the synthesis gas is prevented from being bonded and attached to the metal wall of a downstream device, the yield of the synthesis gas and the stability of the device are improved, and the heat exchange efficiency of a downstream waste heat recovery unit is enhanced.

The invention relates to the related technical field of carbon dioxide detection, in particular to a carbon dioxide leakage detection device which comprises a gas chamber, an infrared light source, an optical filter and a detector. A first-stage connecting lug plate and a second-stage connecting lug plate are integrally formed at ports of the front shell and the rear shell respectively, the first-stage connecting lug plate and the second-stage connecting lug plate are positioned and connected through a first-stage bolt and a first-stage nut, and a mounting bracket is fixedly mounted on the back surface of the gas chamber; external air is pumped into the gas chamber through the air pump, then infrared light is emitted through the infrared light source, carbon dioxide in the gas can absorb infrared light of a specific wave band in the infrared light, then the infrared light irradiates the detection end of the detector through the light filter, the detector detects and analyzes the infrared light, and the infrared light is detected and analyzed through the infrared light source. Therefore, the concentration of carbon dioxide in the air is monitored in real time, and personal safety is effectively guaranteed.

The invention relates to a gas leakage monitoring system for a gas chamber of gas insulated switchgear. The system comprises a gas sensor module, an environment sensor module, a main control unit, a display screen, a WIFI wireless communication module and an upper computer, the main control unit is used for acquiring gas concentration data around the gas chamber of the gas insulated switchgear and environmental data in the gas chamber of the gas insulated switchgear; the main control unit is also used for determining that the gas chamber of the gas insulated switchgear is in a gas leakage state under the condition that the gas concentration data meets the gas abnormal condition and the environment data meets the environment abnormal condition, and sending alarm information to an upper computer; and the display screen is used for displaying the gas concentration data, the environment data and the alarm information sent by the main control unit. By adopting the method, the gas leakage monitoring accuracy of the gas chamber of the gas insulated switchgear can be improved.

The invention discloses a multipurpose solid hydrogen storage device which comprises a hydrogen storage device body, the hydrogen storage device body comprises a hydrogen storage profile, an upper cover plate and a lower cover plate, the upper cover plate is arranged at the upper end of the hydrogen storage profile, the lower cover plate is arranged at the lower end of the hydrogen storage profile, and a gas chamber and a heat conduction water chamber are arranged in the hydrogen storage profile; the upper cover plate is provided with an air valve communicated with the air cavity, a water inlet valve and a water outlet valve, wherein the water inlet valve and the water outlet valve are communicated with the heat conduction water cavity. According to the multipurpose solid hydrogen storage device provided by the invention, a solid hydrogen storage material can release a large amount of heat when sucking hydrogen, so that a water inlet valve and a water outlet valve are further arranged on an upper cover plate and are communicated with a heat conduction water cavity, cold water is injected into the heat conduction water cavity through the water inlet valve and the water outlet valve, heat is taken away through the cold water, and the heat conduction efficiency is improved. Therefore, the solid hydrogen storage material can continuously and efficiently absorb hydrogen for storage, the hydrogen storage capacity of the hydrogen storage device main body is greatly increased, and the hydrogen storage device main body is convenient to move and use.

The invention discloses a non-magnetic electric heating film configuration design method based on region division, and belongs to the technical field of electric heating magnetic field suppression, and the method comprises the steps: carrying out the region division of a heating film plane according to the contribution value; establishing a primary function in the area to represent a flow function of current distribution, and calculating magnetic field distribution and temperature distribution of the alkali metal air chamber based on the flow function; establishing constraint conditions about each coefficient in the primary function according to the magnetic noise uniformity and the temperature uniformity; establishing a cost function according to the principle of the minimum magnetic noise mode of the air chamber, and calculating the optimal solution of each coefficient in a primary function to obtain a flow function expression of current distribution; and heating film configuration is designed according to current isoline distribution. By adopting the method, the magnetic noise of the heating film can be effectively reduced, the heating uniformity is considered, and the magnetic resonance signal quality in the quantum sensor can be improved.

The utility model provides a gas detection device which mainly comprises a PWM (Pulse Width Modulation) speed regulation module, a vacuum self-priming pump, a gas chamber, a detection chamber comprising different gas sensors and signal conditioning circuits, a main control board, a stepping motor driving module, a stepping motor, an incremental encoder and the like which are fixed in a shell of the device, the parts can be physically and logically connected by adopting wires or communication protocols, the gas chamber can be respectively communicated with different detection chambers, gas to be detected can enter the different detection chambers through the gas chamber after the gas chamber is communicated, and the concentration of the gas is detected by utilizing different gas sensors and signal conditioning circuits; and a detection result is uploaded to the distributed control system, and alarm and real-time display are carried out through the sound-light alarm module and the display module. The real-time detection of different combustible and toxic gases is realized, the expansibility and universality of the gas detection device are greatly improved, the inventory occupation of power plant spare parts is reduced, and the economic benefit is improved.

The invention discloses a device and a method for testing mechanical properties of a micro sample in a high-temperature and high-pressure hydrogen environment, and belongs to the technical field of testing of mechanical properties in a hydrogen environment, the device comprises a temperature control system, a hydrogen-present micro sample clamp, a high-pressure hydrogen circulating system and a mechanical loading system, a gas standing cavity is arranged in the hydrogen-present micro sample clamp, and the gas standing cavity is of an inverted T-shaped gas passage structure; the upper opening of the gas standing cavity is used for placing a sample, and the openings at the two ends of the gas standing cavity are respectively connected with a high-pressure hydrogen circulating system through pipelines, so that high-pressure hydrogen can circularly flow, the concentration of the hydrogen in contact reaction with the sample is maintained in a stable range, and the volume of the hydrogen in the gas standing cavity is relatively small; the use cost and the explosion risk are effectively reduced, meanwhile, the temperature rising speed is increased, in addition, hydrogen only makes contact with the gas standing cavity and does not make contact with other positions of the hydrogen-containing micro-sample clamp, the contact reaction area is small, and the service life of the hydrogen-containing micro-sample clamp is effectively prolonged.

The present invention belongs to the field of toluene diisocyanate separation and recovery, and specifically relates to a TDI distillation residue separation and recovery device and a TDI distillation residue separation and recovery method. The method comprises: a) passing the TDI distillation residue into a dryer for drying to obtain a high-temperature TDI vapor flow and flowing solid tar particles; the high-temperature TDI vapor flow is then passed into a novel gas chamber for separation; b) the separated high-temperature TDI vapor flow obtained in step a is conveyed through a gas phase conveying pipe into a spray tower for rapid cooling to obtain a gaseous vapor flow and a liquid material flow; c) a portion of the liquid material flow obtained in step b is cooled and circulated to the spray tower, and the remaining portion is conveyed downstream as a product. The method of the present invention not only ensures a high yield of the resulting TDI product, but also solves the problem of clogging of separation and refining-related equipment in the entire process, such as the drying device.

The invention discloses a sulfur hexafluoride non-dispersive infrared spectrum detection device which comprises a shell, a sample gas chamber is arranged in the shell, an infrared source is arranged on one side of the sample gas chamber, light holes are formed in the two sides of the sample gas chamber at equal intervals, and infrared detectors are arranged on the side, away from the infrared source, of the sample gas chamber at equal intervals. The invention relates to the technical field of gas detection, through the cooperation of the shell, the sample gas chamber, the infrared source, the light hole, the wavelength filter, the infrared detector, the gas guide structure, the sealing structure and the gas supply monitoring assembly, the sealing structure is used for sealing the light hole of the sample gas chamber and filtering the sample gas, so that dust and other impurities are prevented from being sucked into the sample gas chamber, and the detection efficiency is improved. The sulfur hexafluoride detection device has the advantages that the sample gas is collected, the conveying state of the sample gas is monitored, the stable conveying of the sample gas is ensured, the accuracy and stability of a detection result are improved, the service life of the detection device is prolonged, the interference of an external environment on the detection result is effectively avoided, and the sulfur hexafluoride detection device has wide applicability in a severe environment.

The utility model discloses a gas pipeline gas parameter inspection device with muddy water protection, relates to the technical field of inspection, and solves the problems of low test efficiency and even parameter distortion caused by the fact that a pipeline gas parameter inspection device is easily interfered by impurities such as muddy water in the prior art. Comprising a branch pipe gas production point, a transparent hose, a gas inlet pipeline, a muddy water identification module, an electromagnetic valve, a multi-parameter sensor module, a data acquisition and storage module, a gas pump, a gas outlet pipeline, a power supply and a test gas chamber, when no muddy water exists in the transparent hose, the electromagnetic valve is opened, and gas is normally detected; when water or sludge exists in the transparent hose, the muddy water recognition module responds, the electromagnetic valve is closed, negative-pressure air suction of the air pump is converted into positive-pressure air outlet, and the electromagnetic valve is opened to blow muddy water in the transparent hose; the muddy water protection function can completely eradicate the damage of sludge impurities and the like to the internal structure of the instrument, the use requirements of complex engineering scenes such as geological mines and chemical engineering are met, the test efficiency is high, the cost is low, and the maintenance is easy.

The utility model belongs to the technical field of gas monitoring, and particularly relates to a flue gas on-line monitoring device under a high-CO condition. Comprising an exhaust funnel, the sampling end of the exhaust funnel is provided with a sampling probe, the sampling probe is connected with a CEMS analyzer through a heat tracing pipeline, the CEMS analyzer is internally provided with a calibration port, a sampling pump, an electrochemical module interface and a gas chamber, and the sampling pump is sequentially connected with a heating box and a condenser through a pipeline. The gas inlet end of the sampling pump is connected with a calibration port through a pipeline, a three-way filter and a check valve, the calibration port is connected with a gas chamber and an electromagnetic valve in parallel through the pipeline and the three-way filter, the liquid discharge end of the condenser is connected with a waste liquid barrel and an electrochemical oxygen measurement module in parallel through the pipeline and the three-way filter, and the electrochemical oxygen measurement module is inserted into an electrochemical module interface. According to the utility model, when the high-CO flue gas is monitored, the chemical reaction between CO and O2 is reduced, so that the measurement of the oxygen content of the flue gas is more accurate.

The invention provides a device and a method for testing the performance of a pressure sensor for a vacuum stability test of explosives and powders, the device comprises a box body, an inert gas chamber and a corrosive gas chamber are arranged in the box body, and the top end of the corrosive gas chamber is provided with a to-be-detected pressure sensor; a balance pipe is arranged between the bottom end of the inert gas chamber and the bottom end of the corrosive gas chamber, and isolation liquid is contained in the balance pipe and is mercury or tetradecahydrophenanthrene perfluoride. The two ends of the balance pipe are communicated with the inert gas chamber and the corrosive gas chamber respectively, and an inert gas control valve and a corrosive gas control valve are arranged at the communication position. According to the invention, the isolation liquid freely moves in the balance pipe without height difference to realize pressure adjustment, an organic film cutting piece of an existing device is replaced, and high-temperature resistance and corrosion resistance testing and examination of the high-precision pressure sensor can be rapidly, accurately and conveniently realized.

The invention discloses a gas leakage alarm monitoring device, which relates to the technical field of gas leakage alarm monitoring, and comprises a mounting mechanism, a monitoring mechanism, a gas leakage alarm device and a gas leakage alarm device, the extraction mechanism is installed on one side of the monitoring mechanism and used for extracting fuel gas leaked in the air; the discharging mechanism is mounted on the other side of the monitoring mechanism and used for discharging the detected gas to the outside; the alarm mechanism is mounted on one side of the mounting mechanism and used for intelligently giving an alarm according to the leakage condition; quantitative gas sucked into the gas chamber is fully mixed by installing the monitoring mechanism, and the gas concentration data in the gas chamber is uniformly obtained by radial movement, so that the gas concentration obtaining accuracy is improved, the leakage speed of the leakage position is continuously obtained according to the concentration data, and a basis is provided for intelligent alarm and prompt.

The invention discloses a methane and aerosol synchronous measurement gas chamber, a system and a working method, and belongs to the field of coal mine underground methane and aerosol detection. The methane and aerosol synchronous measurement gas chamber comprises a horizontally-arranged gas chamber of a cylindrical structure, optical lenses are installed on circular openings in the two ends of the gas chamber respectively, a bladeless fan is arranged on an air inlet of the gas chamber, a diffusion-shaped external flow guide cover is arranged on an air outlet, and a flow velocity sensor is arranged on the inner side of the external flow guide cover. A pressure sensor is arranged on the inner side of the air chamber, and nozzles for spraying high-pressure air to the optical lens are arranged on the two sides of the bladeless fan respectively; a function generator, a laser controller, a laser and a collimating lens are sequentially arranged on one side of the methane and aerosol concentration synchronous measurement gas chamber, a focusing lens, a detector, a data acquisition card and a computer are sequentially arranged on the other side of the methane and aerosol concentration synchronous measurement gas chamber, the structure is simple, the device can be used for a long time in a scene with the dust content reaching the standard, and the measurement precision and reliability can be effectively guaranteed.

According to the double-optical-path gas detection method based on the tunable diode laser absorption spectrum (TDLAS) technology, gas concentration is inverted through double-wavelength laser output, double-optical-path design and a maximum variable data processing algorithm, and multi-gas detection with high sensitivity and wide dynamic range is achieved; the method is especially suitable for distinguishing and concentration inversion of gases (such as methane and carbon monoxide) with similar absorption peaks. The core of the method is that a stepping motor is used for controlling a reflector to move so as to realize the double-optical-path design of the gas chamber; gases with similar absorption peaks can be effectively distinguished in combination with dual-wavelength laser output; the light intensity signals of the long optical path and the short optical path are synchronously processed by using the least square method, and the gas concentration is inversed through light intensity ratio calculation and matrix operation, so that the detection precision is improved. According to the double-optical-path gas detection method, double wavelengths and double optical paths are realized, meanwhile, the length of the optical path can be dynamically adjusted, and the double-optical-path gas detection method can be suitable for different scenes. The system is high in sensitivity, wide in dynamic range and capable of distinguishing multiple gases, and meanwhile the system is flexible, low in complexity and high in anti-interference capacity.

The present invention relates to the field of energy storage technology, and discloses a dual-coordinated compressed air energy storage system, including a carbon dioxide circuit, a gas storage reservoir, and an air circuit connected in sequence; the gas storage reservoir is a pressure-bearing container, which is divided into an air cavity and a carbon dioxide gas cavity by a flexible diaphragm, and the flexible diaphragm can be freely scaled and not subjected to tension to keep the pressure of the air cavity and the carbon dioxide gas cavity equal and the volume adjustable; the carbon dioxide circuit includes a liquid storage tank, a carbon dioxide compressor, and a carbon dioxide expander, the liquid storage tank is respectively connected to the carbon dioxide compressor and the carbon dioxide expander, and the carbon dioxide compressor and the carbon dioxide expander are both connected to the carbon dioxide gas cavity; the air circuit includes an air compressor and an air expander, and the air compressor and the air expander are both connected to the air cavity. The present invention solves the problem of site selection flexibility of gas compression energy storage, so as to develop gas compression energy storage in numerous industrial parks or other applicable areas.

The invention discloses an in-situ calibration system and an in-situ calibration method for mixed gas measurement equipment, and relates to the technical field of insulating arc-extinguishing gas media. The system comprises an electric proportional valve which is configured to control the fixed gas cabin to be in at least two set output pressure states; the calibration gas cabin inflates the calibration pipeline in sequence based on each set output pressure state so as to change the pressure state of the calibration pipeline; the thermometer is configured to measure the temperature of gas in the calibration pipeline when the gas filling is finished; the pressure gauge is configured to measure the gas pressure in the calibration pipeline when inflation is finished; the SF6 concentration meter is used for measuring a gas density measurement value of the calibration pipeline when gas filling is finished; and the upper computer is used for calibrating the SF6 concentration meter according to the gas density measurement value, the gas temperature, the gas pressure and the set mixing ratio. By adopting the system, the in-situ calibration of the SF6 concentration meter can be completed by using the standard gas, and high-precision in-situ calibration can be realized.

The invention belongs to the technical field of gas concentration detection, and particularly relates to a rotary kiln infrared gas analyzer which comprises a shell assembly, a heat dissipation device is installed on the shell assembly, a gas suction device is installed at one end of the shell assembly, a filtering device is fixedly connected to the gas suction device, and a supporting plate is fixedly installed in the shell assembly. A detection gas chamber, a reference gas chamber and a correction gas chamber which are arranged in parallel are fixedly arranged on the supporting plate in a penetrating manner, and structures such as a processor, a controller, a temperature sensor, a gas pressure sensor, an electric heating wire and the correction gas chamber are arranged; the air temperature in the correction air chamber is heated to be the same as the air temperature in the detection air chamber through the electric heating wire, the air pressure in the detection air chamber is adjusted to be the same as the air pressure in the heated correction air chamber through the cooperation of the air pump and the exhaust valve, and then the detection result is calculated in equal proportion. The concentration of the target gas in the flue of the rotary kiln in the normal temperature state can be obtained, and the accuracy of a detection result is greatly improved.

The present invention belongs to the technical field of analytical detection, and particularly relates to an automatic zero-calibration Fourier transform infrared gas analyzer and its analysis method. The gas analyzer includes a sample gas analysis flow path composed of a sample gas sampling head, a bag filter, a three-pass filter, a sampling solenoid valve, a sampling pump, a flow meter, and an infrared gas cell connected in sequence; an air zero-calibration branch is connected between the sampling solenoid valve and the sampling pump, and the air zero-calibration branch includes an air sampling head, a condensation filter, a zero-calibration adsorption tube, and a zero-calibration solenoid valve connected in sequence; the zero-calibration adsorption tube includes a gas purification area, a CO2 absorption area, an activated carbon area, an ammonia removal area, and a molecular sieve area distributed in sequence along the air inlet direction, and both ends of each area are encapsulated with absorbent cotton. Through the coordinated cooperation of the bag filter, the three-pass filter, and the condensation filter, the present invention has a comprehensive adsorption effect, can adsorb particulate matters with different molecular sizes, and remove water vapor at the same time, which is beneficial to improving the detection accuracy of the analyzer and extending its service life.

The utility model relates to the technical field of filters, in particular to a gas filtering system. The utility model provides a gas filtering system. The gas filtering system comprises a tank body, a filter element assembly and a pulse blowback assembly, a tube plate is installed in the tank body, a cavity in the tank body is divided into a process gas cavity and a clean gas cavity by the tube plate, the clean gas cavity is located above the process gas cavity, and the clean gas cavity is communicated with a gas outlet pipe used for discharging clean gas. The side wall and the bottom of the process gas chamber are respectively communicated with a gas inlet pipe and an ash discharge pipe; a plurality of mounting holes are formed in the tube plate, the filter element assembly comprises a plurality of filter elements, the filter elements are in one-to-one correspondence with the mounting holes, the filter elements are arranged in the process gas chamber, and the opening ends of the filter elements are mounted in the corresponding mounting holes. The gas filtering system can achieve a good blowback effect under the working condition of low blowback gas pressure, and energy consumption of equipment is reduced.