250 results about "Gas chamber" patented technology

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 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 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 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.

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 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 application relates to the technical field of gas atomization powder production, and particularly relates to a gas back-blowing anti-blocking atomization spray disc and an atomization powder production device. The atomization spray disc comprises a lower disc and an upper disc, the upper disc is provided with a melt drop channel penetrating in the vertical direction, a gas chamber and an annular gap are formed between the lower disc and the upper disc, and the atomization spray disc further comprises an elastic reset mechanism. The upper disc and the lower disc are in sliding sealing cooperation, one of the upper disc and the lower disc is a fixing part for being fixed to a rack, and the other is a sliding part. During powder production, the upper disc and the lower disc keep a relative position through the elastic reset mechanism, and the inner edge height of the lower end opening of the annular gap is not higher than the outer edge height. When metal melt drops are adhered to the melt drop channel, the gas pressure in the gas chamber increases, the sliding part overcomes the elastic force of the elastic reset part and slides back to the fixing part, so that the inner edge height of the lower end opening of the annular gap is higher than the outer edge height. In this way, the metal melt drops adhered to the melt drop channel can be removed by gas back-blowing.

The utility model discloses a kind of liquid nitrogen storage tank pressure relief protection devices based on liquid column differential pressure control, belong to pressure vessel testing equipment field. Including liquid tank, air inlet and exhaust pipe and connecting pipe. Middle in liquid tank is provided with baffle, the baffle will the internal space of the liquid tank be divided into gas chamber and liquid chamber, liquid level control hole is opened on the side wall of the baffle far from the liquid chamber, the liquid level control hole of uppermost layer is located below the top edge of the baffle;The air inlet and exhaust pipe is vertically inserted in the top of the liquid tank, and the bottom end of the air inlet and exhaust pipe extends to below in the liquid chamber, the bottom end face of the air inlet and exhaust pipe is located below the liquid level control hole;The connecting pipe is vertically inserted in the bottom of the liquid tank, and the top end of the connecting pipe extends to in the gas chamber. The utility model is discharged by liquid column static pressure difference The pressure relief device of two-way protection of overpressure / negative pressure, especially applicable to the pressure test working condition of liquid nitrogen storage tank.

The utility model discloses an industrial pulse dust collector which comprises a box body, a plurality of air purification chambers, an air storage tank, a plurality of filter cartridge devices, an air nozzle, an air inducing device and an anti-blocking assembly, according to the utility model, the air-stopping pulse blowing ash removal is adopted by the air purification chambers, and the purpose of thorough ash removal can be achieved by blowing once, so that the ash removal period is prolonged, the ash removal energy consumption is reduced, the compressed air consumption can be greatly reduced, the ash removal capacity is strong, the dust removal efficiency is high, the emission concentration is low, and the economic benefit is good. Meanwhile, the fatigue degree of the filter bag and the pulse valve is correspondingly reduced, so that the service life of the filter bag is prolonged exponentially; as the upper part of the filter bag is pulled out, the dirty bag is put into the dust collecting hopper at the lower part of the box body and is taken out from the window after the filter cartridge framework is pulled out during bag replacement, and the bag replacement operation condition is improved.

The invention relates to an automatic blowing window device capable of preventing dust and high-temperature melt from being accumulated, the automatic blowing window device comprises a view field tube, the view field tube is provided with an air guide sleeve, and the air guide sleeve is provided with a protective sleeve; a first gap is formed between the protective sleeve and the gas guide sleeve, and a coking purging gas chamber is formed in the first gap; a second gap is formed between the air guide sleeve and the field tube, and forms a pressure taking air chamber; a pressure tapping gas inlet is formed in one side of the protective sleeve and is communicated with the coking purging gas chamber; a coking purging gas inlet is formed in one side of each of the protective sleeve and the gas guide sleeve; the coking purging gas inlets are communicated with the gas compression chamber and the coking purging gas chamber; a flange is arranged at one end of the view field pipe, a gas guide ring sleeves one end, far away from the flange, of the view field pipe, a pressure tapping nozzle is arranged on the periphery of the gas guide ring, a third gap is formed between the pressure tapping nozzle and the gas guide ring, and the third gap is communicated with the coking purging gas chamber.

The present application relates to hot water supply equipment technical field, disclose a kind of gas premixing device, gas water heating equipment and control method. Among them, gas premixing device includes premixing outer tube and premixing inner tube, premixing outer tube is equipped with air passage, premixing inner tube is located in premixing outer tube, the outer wall between premixing inner tube and the inner wall of premixing outer tube is enclosed to form the gas chamber being communicated with gas inlet, premixing inner tube is equipped with spoiler, gas mixing passage and air passage being communicated with air inlet, gas mixing passage is respectively communicated with the outlet of air passage and the outlet of gas chamber, at least part of spoiler is located in gas mixing passage. The present application is equipped with multiple spoiler being communicated with gas outlet passage by being located in the inner wall circumferential side of gas mixing passage, gas flows out from gas outlet passage and enters into spoiler, under the spoiler effect of gas in spoiler, make gas and air form turbulent flow at gas mixing passage, realize the sufficient mixing of gas and air.

A radiation source includes a chamber, a window, and a conduit system. The chamber confines a gas and contaminants produced during the generation of radiation. The window isolates the gas from an environment external to the chamber and allows the radiation to travel between the gas chamber and the environment. The refill path allows a replacement of the gas. The conduit system directs a flow of one of a refill gas, the gas, or the refill gas and the gas at least during a refill operation to prevent the contaminant from contacting the window. The conduit system may include one or more unidirectional valves which may be magnetic check valves. A magnet component of the magnetic check valve may be disposed external to the conduit and the chamber so that the magnet component is not subjected to corrosion by the gas in the conduit or the chamber.

The utility model discloses a jet flow sampling probe diluting device which comprises a shell provided with a sample gas cavity and a jet flow pump, the shell is provided with a back flushing pipeline, a probe pipe and a smoke outlet which are communicated with the sample gas cavity, the jet flow pump is arranged on the shell, and a diluting gas chamber of a Venturi structure is arranged in the jet flow pump. The two ends of the dilution gas chamber are respectively communicated with the dilution sample gas outlet and the dilution gas inlet, and the suction end of the dilution gas chamber is communicated with the flue gas outlet. According to the utility model, the probe tube is arranged in the chimney to be detected, standard gas enters the dilution gas chamber through the dilution gas inlet, in the process, the venturi structure in the jet pump mixes and dilutes sucked flue gas and dry and clean air conveyed from the dilution gas inlet, and then the flue gas analyzer analyzes and measures the flue gas. The detection is more convenient, the dew point of the diluted sample gas can be greatly reduced, the requirement on the precision of an analyzer is lower, and the detection data is more accurate.

The outer ring fire cover comprises a fire cover body, the fire cover body is provided with a plurality of fire holes distributed in the circumferential direction of the fire cover body, and the outer ring fire cover further comprises a noise reduction structure; the silencing structures are arranged on the sides, facing the radial inner side of the fire cover body, of the fire holes, the silencing structures and the fire holes are arranged in the radial direction of the fire cover body at intervals, and gas chambers communicating with the fire holes are formed. The noise reduction structure comprises a gas channel and a plurality of noise reduction parts arranged in the circumferential direction of the fire cover body at intervals, and the gas channel is formed by the interval between every two adjacent noise reduction parts. And the structure of the fuel gas channel is set as follows: the flow rate of fuel gas flowing through the fuel gas channel is greater than that of fuel gas flowing through the fuel gas chamber. The silencing structure is arranged in the outer ring fire cover, so that gas flowing to the fire holes is silenced, and the combustion performance of the combustor is not affected.

The invention provides a combined measurement system and method for gas adsorption and resistivity of coal rocks with different temperatures and pressures, and belongs to the field of physical analysis of coalbed methane storage rocks.The gas adsorption system comprises a gas chamber, the gas chamber is connected with a methane gas tank and a nitrogen gas tank through a first valve and a third valve, the gas chamber is connected with a sample holder through a second valve, and the sample holder is connected with a gas storage tank through a third valve. A first pressure gauge is arranged between the air chamber and the second valve, a second pressure gauge is arranged between the second valve and the sample holder, a temperature controller is connected between the air chamber and the sample holder, the sample holder is connected with a constant-flux pump through a fourth valve, and the sample holder is connected with a vacuum pump through a fifth valve; and the sample holder is also connected with the bridge instrument. According to the combined measurement system and method for gas adsorption and resistivity of coal rocks with different temperatures and pressures, under the conditions of different temperatures and pressures, the gas adsorption amount of the coal rocks is accurately measured, the resistivity change of the coal rocks is synchronously monitored, and the dynamic incidence relation of the gas adsorption amount and the resistivity change is established.

The invention discloses a heat balance temperature calculation method and device, equipment and a medium, and relates to the technical field of air chamber air supplementation, and the method comprises the steps: carrying out the pre-calculation of a multi-dimensional parameter sample set through a preset multi-dimensional parameter space model, and obtaining a multi-dimensional parameter space data set which comprises the heat balance temperature corresponding to each multi-dimensional parameter sample; acquiring target gas state parameters and target gas injection process parameters of the chamber to be supplemented with gas; and based on a multi-dimensional interpolation method, according to the target gas state parameters, the target gas injection process parameters and the multi-dimensional parameter space data set, calculation is conducted, and the heat balance temperature of the chamber to be supplemented with the gas is obtained. Pre-calculation is carried out through a multi-dimensional parameter space model, and a multi-dimensional interpolation calculation method is combined, so that the calculation efficiency of the heat balance temperature can be improved, and when the inflation volume is calculated on the basis of the heat balance temperature, the situation that inflation is excessive and the heat balance temperature is not calculated is avoided, and therefore the inflation precision of an air chamber is improved, and the calculation efficiency of the heat balance temperature is improved. And the insulation performance and the operation reliability of the GIS are ensured.

The application discloses a vulcanization system and method for silicone rubber based on SF6 waste gas plasma reduction treatment. In the system, a mixed gas chamber, a discharge system, a vulcanization system, a separation gas chamber and a collection gas bottle are sequentially connected by gas paths, the separation gas chamber is connected with the mixed gas chamber through a dilution gas chamber, flow meters and electromagnetic valves are arranged between the mixed gas chamber and the discharge system, between the mixed gas chamber and the dilution gas chamber, and between the separation gas chamber and the dilution gas chamber, and an ultraviolet light source is used for providing light for the discharge system and the vulcanization system, wherein a catalyst is arranged in the discharge system, SF6 waste gas, hydrogen and dilution gas can be introduced into the mixed gas chamber. The application can efficiently utilize S elements in SF6 waste gas, degrades SF6 through catalysis, realizes vulcanization treatment of silicone rubber base material in real time by taking S as a vulcanizing agent while depositing S in the form of an element, finally converts S elements in SF6 waste gas into vulcanized silicone rubber in the form of vulcanization crosslinking, and achieves the purpose of resource utilization of S elements in SF6 waste gas.

The application relates to the technical field of dust removal equipment, and discloses a bag type dust removal device, which comprises a dust removal box body, a dust collecting hopper is arranged at the lower side of the dust removal box body, a partition plate is arranged in the dust removal box body, a clean gas chamber and a filter chamber are formed above and below the partition plate in the dust removal box body respectively, a dust-containing air inlet is arranged at one side of the filter chamber, a clean gas outlet is arranged at one side of the clean gas chamber, the side wall of the partition plate is in sliding fit with the inner wall of the dust removal box body, a driving mechanism for driving the partition plate to slide up and down along the dust removal box body is arranged at the top of the dust removal box body, a plurality of dust removal filter bags are arranged in the filter chamber, and a folding cleaning mechanism for cleaning the dust removal filter bags is further arranged between the clean gas chamber and the partition plate. In the application, dust on the outer wall of the dust removal filter bag can be effectively cleaned conveniently, the cleaning effect is good, the device can be operated without shutdown during the cleaning process, the normal work of the device is not affected, the energy consumption is small, the cost is low, and the service life is long.

The present application relates to the technical field of power distribution equipment, and particularly relates to a ring main unit gas chamber temperature and humidity test method and device based on dynamic frost layer regulation. The method tests the ring main unit gas chamber at multiple temperature points in a high-low temperature test chamber, and dynamically regulates the thickness of the frost layer formed by a mirror surface humidity detection unit during dew point measurement to achieve rapid and accurate adjustment of the humidity in the gas chamber, thereby avoiding the traditional inefficient gas replacement process, allowing the entire humidity adjustment process to be completed within 10 minutes, greatly shortening the multi-working-condition temperature and humidity test cycle. The control terminal automatically coordinates the high-low temperature test chamber, electromagnetic valve, pump set and detection unit to achieve full closed-loop operation from temperature regulation, humidity measurement to frost layer regulation, supports 24-hour continuous operation, avoids operation errors and data fluctuations caused by manual intervention, and significantly improves the reliability and repeatability of test data.

The invention belongs to the technical field of gas monitoring, and particularly relates to a multi-gas monitoring method and device based on piezoelectric ceramic pump sampling, and the method comprises the steps: obtaining a patient airway gas sample; the method comprises the following steps: treating a patient airway gas sample, filtering out water vapor and impurities, extracting the filtered gas sample into a micro non-spectral infrared multi-channel gas chamber by using a piezoelectric ceramic pump, and measuring, so that a light beam emitted by an infrared light source penetrates through the gas sample; an infrared sensor is used for synchronously detecting infrared light intensity attenuation of carbon dioxide and anesthetic gas at a specific absorption wavelength; and establishing a multi-gas concentration calculation model by combining the Beer-Lambert law according to the infrared light intensity attenuation degree, calculating the concentration of carbon dioxide and anesthetic gas in the gas sample, correcting the gas concentration in real time by adopting a temperature-pressure compensation algorithm, and outputting a corrected gas concentration value and a real-time oscillogram. Therefore, the problems of high power consumption, short service life, large monitoring device size and the like in the prior art are solved.

The application discloses a modular desulfurization, denitration, VOC removal and dust removal integrated system, which comprises a dust gas chamber, at least one air inlet is formed in the top of the dust gas chamber, and at least one ash outlet is formed in the bottom of the dust gas chamber; an air duct, an air outlet end of the air duct is communicated with the air inlet of the dust gas chamber; a desulfurization catalyst spraying device arranged in the air duct; a plurality of filter pieces loaded with denitration catalysts, the plurality of filter pieces are arranged in the dust gas chamber, and gaps exist between two adjacent filter pieces; at least one clean gas chamber, the clean gas chamber is arranged on one side of the dust gas chamber, and air flow in the dust gas chamber enters the clean gas chamber after flowing through the filter pieces; and an air outlet duct, an air inlet end of the air outlet duct is communicated with an air outlet of the clean gas chamber. The modular desulfurization, denitration, VOC removal and dust removal integrated system can effectively reduce dust raising and realize the synergistic treatment of desulfurization, denitration and dust removal, and has low overall investment and small land occupation.

The application discloses a gas decomposition product concentration measuring method based on gas mixing, and the method is applied to a gas circulating device and comprises the following steps: controlling gas in a to-be-detected gas chamber to be delivered into a first gas chamber to obtain an initial gas decomposition product concentration; controlling the gas in the to-be-detected gas chamber to be delivered into a second gas chamber, then delivering the gas in the first gas chamber into the second gas chamber, then delivering the gas in the second gas chamber into the first gas chamber, and finally obtaining a target gas decomposition product concentration; determining whether the gas is in a mixing state according to the initial gas decomposition product concentration and the target gas decomposition product concentration; and if the gas is in the mixing state, taking the target gas decomposition product concentration as the total concentration of the gas decomposition product in the to-be-detected gas chamber. Whether the detected gas decomposition product concentration is accurate is determined by detecting whether the gas in the to-be-detected gas chamber and the gas decomposition product are mixed, and the gas decomposition product concentration is calculated after the gas decomposition product is mixed, so that a more accurate detection result is obtained.

This invention provides a CO2 dynamic dissolution testing device. The device includes: a core holder, a vacuum system, a confining pressure system, a back pressure system, a fluid supply system, a nuclear magnetic resonance (NMR) testing system, a sensor system, and a temperature control system. The fluid supply system includes a CO2 gas supply component, a formation water supply component, a saturated carbon dioxide formation water supply component, and a helium supply component. The helium supply component includes a helium cylinder and a standard gas chamber, with the gas outlet of the helium cylinder connected to the inlet of the standard gas chamber. The CO2 gas supply component, formation water supply component, saturated carbon dioxide formation water supply component, and standard gas chamber are each connected to the fluid inlet of the core holder. The sensor system includes a pressure sensor group, comprising a pressure sensor for acquiring the pressure at the fluid inlet of the core holder, a pressure sensor for acquiring the pressure at the fluid outlet of the core holder, and a pressure sensor for acquiring the pressure of the standard gas chamber.

The device includes a housing, a gas container, a drug container assembly, and a movable seal member, the housing defining a gas chamber and an equalization bypass. The gas container is disposed within the housing and configured to generate pressurized gas in the gas chamber when the device is activated. The movable seal member is configured to move from a first sealing position to a second sealing position. When the movable seal member is in the first sealing position, the gas chamber is in fluid communication with an external volume surrounding the device via the equalization bypass. When the movable seal member is in the second sealing position, the gas chamber is fluidly isolated from the external volume by the movable seal member.

The invention relates to the technical field of power distribution equipment, in particular to a dynamic humidity regulation-based ring main unit gas chamber temperature and humidity test method and device, which utilizes a full-automatic intelligent operation platform to automatically regulate the temperature of a ring main unit gas chamber, and automatically detects the humidity value at the temperature after the gas temperature in the gas chamber is stable. The humidity of the gas in the gas chamber is intelligently adjusted by using moisture and a drying agent in the air, so that other initial humidity tests can be carried out, the initial humidity is dynamically adjusted on the premise of not replacing the main gas of the gas chamber, and the representativeness and reliability of test data are remarkably improved; the control terminal accurately controls the electromagnetic valve, the booster pump and the high-low temperature box to operate cooperatively according to the temperature, humidity, pressure and environmental parameters detected in real time, humidification or dehumidification is carried out automatically, and 24-hour continuous tests can be completed without manual intervention.

The utility model relates to a gas chamber body for calibration test of a household methane gas sensor, which comprises a gas chamber outer shell, a gas chamber inner shell and a gas chamber inner shell, an air inlet hole and an air outlet hole are formed in two opposite surfaces of the anti-reflection glass, and sealing glass covers the air inlet hole and the air outlet hole; the sensor mounting bracket is used for mounting a methane gas sensor, a signal transmitted by a transmitting end of the methane gas sensor passes through the anti-reflection glass and methane gas in the gas chamber outer shell to a receiving end to be received, and the methane gas sensor can realize the detection of the concentration of the methane gas in the gas chamber outer shell. According to the gas chamber body for the calibration test of the domestic methane gas sensor, methane gas does not need to be in actual contact with the methane sensor, the penetration rate of sensor light can reach 95% through the glass and the AR film on the glass, and the accuracy of a test result is ensured even if the sensor is not in actual contact with methane; and the test efficiency is improved.

The invention discloses an electric simulation soil acid-base change experimental device capable of automatically replenishing water, and belongs to the technical field of soil environment simulation experimental equipment. The device comprises a box body, a soil area is arranged in the box body, two sides of the soil area are provided with a limiting chute and an inserted electrode, when the electrode is inserted, a gas cavity is compressed through a polar plate clamping seat, gas is transmitted to a water replenishing device through a gas guide cavity, and a water replenishing pricking needle is triggered to move upwards to pierce into soil and unfold a water guide channel. According to the device, a water supplementing system is started through mechanical linkage of electrode insertion action, closed-loop control is achieved through cooperation of a water level sensor and a controller, and the soil can be automatically and accurately kept in a water-completely-saturated submerging state. The intelligent synchronization of electrochemical acid-base change simulation and moisture real-time compensation is realized, the problems of water replenishing lag, operation disturbance and inaccurate moisture control in a traditional experiment are effectively solved, and the stability, repeatability and automation degree of the experiment are remarkably improved.

The invention is suitable for the technical field of insulating gas, and provides a GIS insulating gas decomposer detection system and method. The system comprises a gas detection unit, electronic equipment, and a sampling interface, a pressure and flow adjusting unit, a filtering and drying unit and a detection gas chamber which are sequentially communicated through a pipeline, wherein the gas detection unit is arranged in the detection gas chamber; the sampling interface is used for sampling gas in the GIS gas chamber; the pressure and flow regulating unit is used for reducing pressure and stabilizing flow of the gas taken out from the sampling interface; the filtering and drying unit is used for filtering and drying the gas and sending the filtered and dried gas into the detection gas chamber; the gas detection unit is used for detecting components and concentration of gas in the detection gas chamber and sending a signal to the electronic equipment; and the electronic equipment analyzes the signal, determines the component and concentration of the gas in the detection gas chamber, and sends out early warning information when the gas concentration exceeds an early warning threshold value. According to the invention, the gas composition and concentration in the GIS gas chamber can be accurately detected.

The invention discloses a self-checking method of a gas circulation device, the method is applied to the gas circulation device, and the method comprises the following steps: collecting an initial pressure value of a gas chamber to be tested when the current gas is uniformly mixed; controlling the gas circulation device to perform primary gas mixing, and performing volume calculation according to the gas flow rate, the gas decomposition product concentration, the initial pressure value and the current pressure value when the gas in the to-be-measured gas chamber is conveyed to the first gas chamber, so as to obtain the volume of the to-be-measured gas chamber obtained by calculation when the current gas is mixed uniformly; and performing difference comparison according to the volume of the to-be-measured gas chamber obtained by calculation when the current gas is uniformly mixed and the volume of the to-be-measured gas chamber obtained by calculation when the historical gas is uniformly mixed, and determining whether the concentration measuring device for the gas decomposition products has a fault or not. Before the gas circulation device is used for detecting the concentration of the gas decomposition product every time, the gas circulation device is self-detected based on the calculated volume of the gas chamber to be detected, so that the problem of the gas circulation device can be found in time, and the accuracy of concentration detection is ensured.

The application discloses a device and a method for monitoring environmental parameters in and outside a sealed area in a coal mine underground. The device comprises a control module, a gas conveying module, a gas detection module and a shell. The gas conveying module comprises a first gas pump, a second gas pump, a first gas-water separator and a second gas-water separator. One end of the first gas pump is connected with the first gas-water separator, and the other end is connected with the gas detection module. One end of the second gas pump is connected with the second gas-water separator, and the other end is connected with the gas detection module. The gas detection module comprises a first gas chamber cavity, a second gas chamber cavity and a differential pressure chip. The first gas chamber cavity contains a plurality of gas probes. The second gas chamber cavity contains an H2S gas probe. The shell is provided with a sealed wall outside gas monitoring inlet, a sealed wall inside gas monitoring inlet and a sealed wall inside pressure monitoring inlet. The device and the method can improve the effectiveness and accuracy of the environmental monitoring in and outside the sealed area in the coal mine underground, and can also reduce costs and increase benefits.