156 results about "Flame arrester" patented technology

The invention relates to the technical field of waste gas treatment, and provides an oil tank waste gas adsorption treatment system and a control method. The anti-explosion variable-frequency induced draft fan is arranged on the main oil and gas pipeline; the flame arrester is arranged on the main oil and gas pipeline and located on the upstream of the air inlet direction of the anti-explosion variable-frequency induced draft fan; a gas inlet of the first activated carbon adsorption box is communicated with the main oil-gas pipeline, and a gas outlet of the first activated carbon adsorption box is communicated with a gas inlet of the second activated carbon adsorption box in series; the inlet pressure sensor is arranged at the air inlet end of the first activated carbon adsorption box; the outlet pressure sensor is arranged at the air outlet end of the second activated carbon adsorption box; the inlet valve is arranged at the air inlet end of the first activated carbon adsorption box, and the outlet valve is arranged at the air outlet end of the second activated carbon adsorption box. Through cooperation of series adsorption, active air induction and intelligent monitoring, multiple functions of efficient purification, safe operation and state early warning of the oil tank waste gas adsorption treatment system are achieved.

The present application relates to waste gas treatment technical field, especially to a kind of direct combustion incinerator water seal fire stopper anti-backfire system and application, including incinerator, combined combustor, waste gas source, waste gas fan, water seal fire stopper main body, desalted water source, desalted water injection component, boundary butterfly valve, waste gas pipeline first hand valve, waste gas pipeline second hand valve, waste gas pipeline third hand valve, waste gas pipeline fourth hand valve, flammable alarm instrument LEL, waste gas pipeline switch valve, water seal fire stopper air inlet pipeline, water seal fire stopper air outlet pipeline and water seal fire stopper burst disc;Water seal fire stopper air inlet pipeline and water seal fire stopper air outlet pipeline are all arranged on water seal fire stopper main body, waste gas source is connected with waste gas fan by pipeline, solve the technical problem that the anti-backfire mode in prior art encounters deflagration backfire or high concentration waste gas impact, fire resistance reliability is insufficient, easily failure due to filter element damage, cannot effectively block flame back to upstream pipeline and device.

The utility model discloses a natural gas melting furnace for melting aluminum ingots, and belongs to the technical field of metal melting equipment. The melting furnace comprises a box body and a furnace body, a liquid oxygen storage tank, a VPSA oxygen generator and a waste gas treatment box are integrated in the box body, and the liquid oxygen storage tank is connected with an oxygen supply pipeline through a vaporizer; the furnace body shell adopts a gradient refractory layer structure; the oxygen supply pipeline is of a Y-shaped parallel structure, a flame arrester and a dynamic pressure balance valve are arranged in the oxygen supply pipeline, and the oxygen flow is adjusted through linkage of a pressure sensor and a controller. A water-cooling observation window is arranged on the inner wall of the furnace body, and a thermal infrared imager is installed on the outer side to monitor the temperature of a molten pool and feed back and control combustion power. According to the utility model, efficient melting, safe oxygen supply and accurate temperature control are realized through structure optimization, and the device is suitable for continuous melting scenes of aluminum ingots.

The utility model discloses a peculiar smell collection and treatment device in polyester production in the technical field of chemical equipment, which belongs to the technical field of tail gas treatment equipment and comprises a grain cutting dryer and a stripping tower. The activated carbon adsorption box is connected with the exhaust fan through a pipeline, the lower portion of the activated carbon adsorption box is connected with the flame arrester through a plurality of pipelines, and the flame arrester is connected with the storage tanks through pipelines. The method is mainly applied to tail gas treatment in chemical production.

This invention relates to the field of gas pipeline safety protection equipment, and discloses a pipeline overcurrent and overpressure protection device, a flame arrester, and a rectifier. The device includes: a housing with an inlet at one end and an outlet at the other end, containing a first cavity and a second cavity, with a first hole and a second hole formed between the first and second cavities; a sealing element slidably disposed within the housing, one end connected to a first spring; and a pressure relief valve disposed on the side wall of the housing, its inner end extending to the second hole for controlling the opening and closing of the second hole. When the upstream gas pressure of the housing exceeds a preset downstream gas pressure value, the sealing element, pushed by the airflow, overcomes the force of the first spring and seals the first hole, maintaining a sealed state and cutting off downstream gas delivery. This pipeline overcurrent and overpressure protection device is integrated into the flame arrester and rectifier, enabling flame arrest and rectification while also cutting off gas delivery in the event of overpressure or overcurrent in the pipeline.

A gas sensor includes a sensor element for the detection of a gas, an encapsulation, which surrounds the sensor element and has an opening for a gas to be detected to pass through to the sensor element, and a flame arrester, which is arranged in the opening of the encapsulation.

The application relates to the field of hydrogen fuel cells, in particular to a tail gas treatment device for a hydrogen fuel cell. The device comprises a tail gas discharge pipeline, a self-starting air supplementing mechanism, a plurality of groups of one-way valves which are uniformly distributed along the tail gas discharge pipeline in the axial direction, wherein the one-way valves are composed of elastic valve sheets, the tail gas discharge pipeline is provided with air holes corresponding to the positions of the elastic valve sheets, the exhaust end of the tail gas discharge pipeline is provided with a flame arrester, and the connection part of the flame arrester and the tail gas discharge pipeline is provided with a honeycomb-shaped catalytic structure. The self-starting air supplementing mechanism automatically introduces air under the effect of high-speed airflow entrainment, and the spiral flow guide ribs of the inner tube form strong spiral flow, so that the air inhaled through the air holes and the hydrogen-containing tail gas generate strong turbulent spiral flow in the mixing cavity, and the hydrogen is efficiently and uniformly diluted.

The application relates to the adsorption and desorption technical field and discloses an adsorption and desorption device and a treatment method for treating light hydrocarbon VOCs waste gas, which comprises an inlet flame arrester, one end of the inlet flame arrester is fixed with a light hydrocarbon VOCs waste gas inlet, the other end of the inlet flame arrester is fixed with a plurality of air draft fans through Y-shaped pipelines, the air draft fans are fixed with adsorption and desorption devices through pipelines, a plurality of functional layers are arranged in the adsorption and desorption devices, the functional layers comprise adsorption and desorption layers, heat preservation and cold preservation layers and condensation and heat exchange layers, oil-water separators are fixed in the condensation and heat exchange layers of the adsorption and desorption devices through pipelines. Through the unique adsorption and desorption device structure design, the pipeline arrangement is greatly simplified, the device land occupation area is effectively reduced, the investment cost is reduced, the temperature control is guaranteed, the safety hidden danger caused by high temperature is avoided, and the problems of space and high investment cost are solved.

The utility model discloses a drawer type explosion-proof flame arrester in the field of flame arresters, which comprises a main body, a plurality of beads and a gland, the beads are filled in the main body, the gland is mounted at an opening of the main body in a matched manner, and vent holes are formed in the gland and the opposite surface of the opening of the main body; the main body is arranged between the flame arrester pressing plate and the tail gas treatment box, the flame arrester pressing plate is connected with the tail gas treatment box through a connecting piece, and gas in the tail gas treatment box enters the main body through a vent hole in the main body and then enters an exhaust channel in the flame arrester pressing plate through a vent hole in the gland. And finally exhausting from an exhaust channel outlet. The main body of the flame arrester is arranged between the tail gas treatment box and the flame arrester pressing plate, when beads in the main body need to be cleaned, only the flame arrester pressing plate needs to be loosened, the main body is pulled out, the overall structure is simple, and disassembly and assembly are convenient.

The invention provides a mobile refueling metering verification tool car, which relates to the technical field of petrochemical metering verification, and comprises a refueling metering verification unit, a safety unit, a mobile support unit, a metering mechanism, a storage mechanism, a flame arrester, a static elimination mechanism, a support mechanism and a lifting mechanism. The metering barrel and the storage barrel are arranged up and down, so that the integrated operation of primary verification, temporary storage and secondary detection of the oil product is realized; the static electricity eliminating mechanism can guide static electricity and stray current into the ground, the flame arrester prevents flames from entering and prevents oil gas from tempering, and the anti-explosion safety is improved; the bottom is matched with a foot jack through scissor fork lifting, the height can be accurately adjusted to align with the oil gun, and mobile verification is achieved through cooperation with wheels. A traditional independent metering barrel is replaced, manual repeated carrying is not needed, leakage and collision are reduced, operation is easy and convenient, safety and reliability are achieved, the metering self-checking efficiency and operation safety of the oiling machine of the gas station are greatly improved, and the metering barrel is suitable for daily metering checking scenes of the gas station.

The purpose of this invention is to propose an oxygen depressurization explosion-proof electrostatic vacuum noise silencing device, belonging to the field of safe handling of flammable and explosive industrial gases. The device includes a vertical cylindrical body, a bottom air inlet, a top exhaust outlet, supporting legs, and inside the cylinder, a bottom flame arrester, a multi-stage pressure reduction and deceleration assembly, an electrostatic elimination sound-absorbing layer, and a top flame arrester. Through multi-stage U-shaped microporous baffles, progressive pressure reduction and deceleration are achieved; the metal wire sound-absorbing layer eliminates static electricity and absorbs noise; and the upper and lower double-layer flame arresters block the backfire path, completely solving the problems of electrostatic explosion, backfire, and noise pollution during oxygen depressurization. This invention is suitable for high-risk scenarios such as liquid oxygen stations, ensuring the safe production of flammable and explosive chemical facilities, avoiding personal injury and property damage, while meeting environmental protection and noise reduction requirements.

The utility model relates to an ignition control system for an incandescent light of an acid gas combustion furnace. An inlet of a natural gas cut-off electromagnetic valve is connected with a natural gas pipe network, and an outlet of the natural gas cut-off electromagnetic valve is connected with a natural gas flame arrester; the natural gas flame arrester is connected with an inlet of a natural gas steel wire hose; the natural gas steel wire hose is connected with a natural gas pipe orifice of the incandescent light burner; an inlet of the combustion air cut-off electromagnetic valve is connected with an air pipe network, and an outlet is connected with the combustion air steel wire hose; the natural gas steel wire hose is connected with a natural gas pipe opening of the incandescent light burner, and the combustion air steel wire hose is connected with an air inlet pipe opening of the incandescent light burner. By accurately regulating and controlling the flow ratio of the fuel gas to the combustion-supporting air and adopting the electromagnetic valve for remote control and the temperature sensor for real-time monitoring, the ignition efficiency and safety are remarkably improved, and the ignition failure rate is reduced. The system is simple in structure, convenient to operate and suitable for various acid gas combustion furnaces.

The utility model discloses a dry-type flame arrester for a coal mine gas conveying pipeline, which relates to the technical field of flame arresting of the coal mine gas conveying pipeline and comprises a shell component, a flame arresting part and a fastener. Through the combined design of the fire-retardant sleeve, the stainless steel wire mesh and the corrugated plate type fire-retardant disc, flame propagation can be effectively blocked, and gas explosion accidents are prevented; the flame arrester adopts the design of the shell assembly and the flame arresting part which are in mirror symmetry, is convenient to install and maintain, and ensures the stability of the structure through the connection of a fastener; the flame arrester is suitable for gas conveying pipelines with different pipe diameters, can meet the use requirements under different pressure conditions, and is wide in application range; when the gas passes through the flame arrester at the average flow speed of 15m / s, the pressure drop is less than or equal to 1kPa, so that the gas conveying efficiency is not influenced; in conclusion, the dry type flame arrester provided by the utility model can effectively solve the explosion problem in a coal mine gas conveying pipeline, insulates flame propagation, ensures the production safety of a coal mine, and has a wide application prospect.

The application discloses a slagging anti-blocking device for sludge treatment boiler, which comprises an ignition tank, an air pipe, a gas pipe, a first electromagnetic valve, a flame arrester, a pulse tank, a spraying pipe and an air compressor, the air compressor is connected with a shunt box, the shunt box is matched with a first branch and a second branch, the first branch is connected with the ignition tank, a second electromagnetic valve is installed on the first branch, a third electromagnetic valve and a check valve are installed on the second branch, the flame arrester is also installed on the first branch, a sweeping device is connected with the second branch, the check valve is arranged between the third electromagnetic valve and the sweeping device, the spraying pipe vertically penetrates through the sweeping device, high-speed airflow sprayed by the sweeping device acts on the spraying pipe, a rotating cleaning device is installed at the lower part of the spraying pipe, and the elbow position of the spraying pipe is located in the rotating cleaning device; the device can prevent smoke dust particles from entering reversely.

The utility model relates to the technical field of storage tank sealing, in particular to a nitrogen sealing device which comprises a plurality of storage tanks, the top of each storage tank is connected with a gas-phase branch pipeline, the gas-phase branch pipelines are gathered and connected to a gas-phase main pipeline, the gas-phase main pipeline is connected to a condenser after passing through a breather valve and a flame arrester, the condenser is connected with an exhaust pipe and a condensate recovery pipe, and the condensate recovery pipe is connected with a liquid outlet pipe. The condensate recovery pipe is connected to a condensate storage tank; the gas-phase main pipeline is further connected with a nitrogen main pipe, and a coarse adjusting system and a fine adjusting system are arranged between the nitrogen main pipe and the gas-phase main pipeline in parallel through nitrogen pipes. According to the utility model, a plurality of storage tanks are integrated into one nitrogen sealing device, so that the equipment investment is reduced. In addition, a coarse adjusting system and a fine adjusting system are arranged on the adjusting system part of the nitrogen sealing device, one is used for the nitrogen sealing process of large nitrogen amount, the other is used for the process of fine adjusting system pressure, and the stability of the device is higher.

The utility model discloses a pressurized gasification verification pry, and relates to the technical field of hydrogen-oxygen pressurization. The liquid material storage bottle, the low-temperature pump, the air temperature type vaporizer, the water bath type vaporizer and the gaseous material storage tank are mounted on the base and are sequentially communicated through a conveying pipeline; the flame arrester is assembled at the tail end of the blow-down pipe, and the front end of the blow-down pipe is connected to a gas return port of the low-temperature pump, a conveying pipeline at the front end of the blow-down pipe, a conveying pipeline at the rear end of the water bath type vaporizer and a gaseous material storage tank; and the detection mechanism is used for detecting the pressure before and after pressurization of the low-temperature pump, the temperature before and after heating of the air temperature type vaporizer and the water bath type vaporizer and the pressure and temperature of the gaseous material storage tank. A detection mechanism is arranged to detect the pressure before and after pressurization of a low-temperature pump, the temperature before and after heating of a gasifier and the temperature and pressure in a gaseous material storage tank in the hydrogen-oxygen supply system so as to verify the principle of the high-pressure hydrogen / oxygen supply system.

This invention provides a flame arrester flow rate and pressure drop testing system, comprising: a power source for providing gas; a first testing module for testing the flow rate and pressure drop of a pipe-end flame arrester, the first testing module being connected to the power source; a second testing module for testing the flow rate and pressure drop of a pipeline flame arrester, the second testing module being connected to the first testing module; and a data acquisition and processing module for acquiring corresponding measurement data from the first and second testing modules, and for converting the measurement data for real-time display. This invention also provides a flame arrester flow rate and pressure drop testing method.

The utility model discloses a VOCS (volatile organic compounds) treatment device, which relates to the technical field of industrial waste gas treatment and comprises a diesel tank body, a cooling component, an activated carbon adsorption system and a tail gas chimney which are sequentially communicated. A liquid diesel oil recovery device is arranged at the output end of the cooling assembly and used for recovering condensed liquid diesel oil, activated carbon is arranged in the activated carbon adsorption system and used for adsorbing residual diesel oil waste gas, and a nitrogen pipeline is arranged at the top of the activated carbon adsorption system and used for desorbing and regenerating the activated carbon in the activated carbon adsorption system; and the mixed gas of nitrogen and diesel oil is conveyed to the input end of the cooling assembly for secondary condensation. The diesel waste gas recovery device is simple in structure, most diesel waste gas is condensed and recovered through the cooling assembly, adsorbed through the activated carbon adsorption system and discharged through the tail gas chimney, and standard emission of the waste gas is ensured. Meanwhile, the activated carbon adsorption system is purged and desorbed by utilizing nitrogen, so that the service life of activated carbon is longer.

This invention relates to the field of condensation separation equipment technology, specifically a box-type condenser and condensation separation method for oil-water separation. The condenser includes a main box with staggered baffles arranged vertically within it. Multiple condensing tubes are fixedly installed on the main box, with the baffles fixedly fitted onto the tubes. An exhaust pipe is located at one corner of the top of the main box and connected to a water-sealed flame arrester. During the condensation separation process, as the gas production load of the pyrolysis furnace changes, the level of the oil-water mixture generated in the main box will periodically rise and fall. This rise and fall causes the side float to slide obliquely along the guide rod, thereby continuously and mechanically scraping away the oil and oil film adhering to the surface of the condensing tubes using a horizontally moving mounting frame and scraper. The scraped oil flows into the bottom oil-water mixture and is discharged through the condensation outlet pipe, effectively preventing oil from adhering to and enveloping the condensing tubes, preventing oil buildup, and ensuring stable heat exchange efficiency of the condensing tubes.

The utility model relates to the technical field of engine crankcase, and disclose a kind of high-power gas engine crankcase forced closed ventilation system, including air filter, the air filter right part fixed mounting has intake pipe, the intake pipe right part fixed mounting has mixer, the mixer upper part fixed mounting has gas intake pipe, the mixer right part is fixedly connected with supercharger by pipeline, the supercharger bottom fixed mounting has supercharger mounting seat, the supercharger right part is fixedly connected with intercooler by pipeline, the intercooler right part fixed mounting has after intercooling intake pipe, using supercharger generates negative pressure, and air is forcedly inhaled into intake pipe, and flame arrester prevents backfire into oil-gas separator, and damper controls crankcase to keep constant negative pressure value, ensure that gas engine works stably, and oil-gas is separated after passing through oil-gas separator and then enters engine to participate in combustion, not only prevent the environmental pollution of oil-gas emptying, and improve the efficiency of gas engine.

The utility model provides a corrosion-resistant flame arrester suitable for a heat accumulating type oxidation incinerator, which belongs to the technical field of pressure conveying pipeline protection equipment, and comprises a flame arrester main body and a flame arresting element arranged in the flame arrester main body, the flame arresting element comprises an inlet layer, a transition layer and an outlet layer, the alloy compensation rings are arranged between the inlet layer and the transition layer as well as between the transition layer and the outlet layer, so that the gap can be automatically compensated under the condition of long-time high temperature through the alloy compensation rings arranged among the inlet layer, the transition layer and the outlet layer, and the influence of the change of the gap between the layers on the fire retardance effect of the flame arrester is avoided.

This utility model discloses an adaptive pressure relief protection device for preventing thermal runaway of lithium batteries, comprising a housing and a cover. A pressure relief turbine flame arrester and a filter are installed inside the pressure relief port. The pressure relief turbine flame arrester includes an outlet cover, a turbine interception cylinder, and an inlet cylinder. The bottom of the interception cylinder of the turbine interception cylinder is a bottom plate A, with an inlet hole A at its center. The bottom of the inlet cylinder has a bottom plate B. A sleeve and a telescopic rod located within the sleeve are fixedly installed through the center of the outlet cover. A movable valve is fixed to the end of the telescopic rod. A spring is fixed to the center of the inner side of the bottom plate B, with the end of the spring passing through the inlet hole A and connected to the movable valve. This utility model intercepts and deposits detonation particles at the bottom of the interception cylinder for centralized processing. Gas is discharged through various outlet holes. The pressure relief turbine flame arrester and the explosion wave energy absorption component jointly suppress flame spread and alleviate explosion pressure, ensuring cabin safety. It is suitable for emergency response scenarios involving aviation lithium batteries.

A natural gas combustion system and its burner assembly for simulating the working environment of a three-way catalytic converter include an intake assembly, a combustion assembly, a cooling assembly, and a reaction assembly. The intake assembly includes a gas bus and an air bus. The combustion assembly includes a primary combustion mechanism and several secondary combustion mechanisms. It also includes a combustion process, comprising a primary combustion stage and a secondary combustion stage. Furthermore, it includes a regulating component. When the regulating component is located on the gas branch line, it sequentially includes a pneumatic valve, a filter, a flow meter, a check valve, and a flame arrester. When the regulating component is located on the air branch line, it sequentially includes a filter, a flow meter, and a check valve. This invention employs a multi-stage burner to perform multi-stage combustion of natural gas to simulate the reaction environment during normal operation of a three-way catalytic converter. It also features a complete automated closed-loop system for dynamic adjustment, significantly improving experimental accuracy through the air-fuel ratio meter and air-fuel ratio control unit of each burner stage.

The utility model discloses a kind of explosion-proof fan, including the casing of three-layer composite explosion-proof resin material and wind wheel, wherein outer layer carbon nanotube PEEK composite material effectively leads out static electricity, middle aluminium hydroxide flame-retardant layer prevents flame spread, inner layer ultra-high molecular weight polyethylene reduces friction spark risk.Electrostatic belt can effectively eliminate static electricity accumulation in transmission process, avoid static spark, improve explosion-proof safety.Fan is equipped with rotary electrostatic brush and ground copper wire to eliminate static electricity, and fire barrier is configured at air inlet to prevent flame propagation.Wind wheel blade is provided with tungsten-containing wear-resistant coating and zircon ceramic wear-resistant strip to avoid friction spark.Explosion-proof motor is built-in temperature sensor and vibration sensor, and stator winding adopts arc-resistant enameled wire.The utility model solves the problem of heavy weight and single protection of traditional fan through multiple explosion-proof design, with the characteristics of lightweight, superior explosion-proof performance, stable and reliable operation, especially suitable for flammable and explosive places such as petroleum and chemical industry.

This utility model discloses a self-cleaning flame arrester for preventing ash accumulation in a coke oven gas supply pipeline. It includes a coke oven gas supply pipe and two connecting pipes. An automatic ash-cleaning mechanism is welded and fixed at the joint of the two connecting pipes. The automatic ash-cleaning mechanism is inserted into the connecting pipe, which is fixed to the coke oven gas supply pipe by bolts and nuts. A flame arresting mesh is detachably installed on the front side of the automatic ash-cleaning mechanism. The flame arresting mesh has multiple small holes and is fixed to the automatic ash-cleaning mechanism by screws. An ash-collecting mechanism is located below the front side of the flame arresting mesh and is detachably fixed to the connecting pipe by screws. The automatic ash-cleaning mechanism includes a water storage shell and an ultrasonic vibrating rod. The water storage shell is welded and fixed to the connecting pipe and is filled with water. An ultrasonic vibrating rod inserted into the top of the water storage shell is installed therein. Multiple guide rods inserted into the water storage shell are fixed on the flame arresting mesh. This utility model provides convenient flame arrest, has a simple structure, facilitates ash cleaning, and saves manpower.

The utility model belongs to the petroleum chemical storage and transportation equipment technical field, concretely relates to a kind of anti-misoperation type quantitative loading sled. Including parallelly arranged in the liquid phase pipeline and gas phase pipeline of sled frame base surface, liquid phase pipeline is in turn connected liquid phase ball valve, Y type filter, mass flowmeter and pneumatic regulating valve, and the accurate flow regulation is realized by closed loop control;Gas phase pipeline is equipped with flame arrestor and check valve, prevent gas backflow and flame back, control unit integrates anti-overflow anti-static controller and quantitative loading control instrument, through double-channel liquid level monitoring, pressure transmitter and electrostatic interlocking mechanism, valve quick cut-off function is triggered in real time, device uses modular flange connection and bypass emergency branch design, support fast maintenance and emergency operation.The utility model replaces manual intervention by automation process, solves the problem of large operation error, safety response lag and low maintenance efficiency in traditional loading, significantly improves the safety, precision and reliability of hazardous chemical loading.

This invention relates to a nitrogen sealing device for a crude benzene storage tank, comprising a nitrogen tank, a crude benzene storage tank, a breather valve with a flame arrester, a vent pipe, a VOC negative pressure suction pipe, a control system, a crude benzene tanker truck, and pressure monitoring instruments. Nitrogen from the nitrogen tank is introduced into the crude benzene storage tank. The pressure monitoring instruments measure the pressure inside the crude benzene storage tank and transmit pressure information to the control system in real time. The control system controls the nitrogen shut-off valve, the nitrogen sealing pressure regulating valve, and the crude benzene outlet shut-off valve, thereby maintaining stable pressure inside the crude benzene storage tank. This invention enables the internal gas phase space of the crude benzene storage tank to maintain an inert gas sealed environment, achieving intrinsic explosion protection, reducing energy consumption, and mitigating environmental pollution.

The utility model discloses a blending combustion system for coupling natural gas with biomass gas in a furnace kiln, which belongs to the technical field of biomass energy utilization and comprises a filtering device, a pressure regulating device, a purifying device, a first pressure stabilizing device, a gas mixing device, a second pressure stabilizing device, a flame arrester, the furnace kiln and an induced draft fan. According to the system, the natural gas and the biomass gas are coupled, mixed and combusted, the heat value defect of the biomass gas is overcome through the high heat value characteristic of the natural gas, the combustion temperature and heat efficiency of the kiln are guaranteed, the consumption of the natural gas can be reduced by mixing the biomass gas, the energy utilization efficiency and the environmental protection performance of the kiln are improved, and the fuel cost is reduced by more than 30%.

The application discloses a gas extraction pipe self-degreasing double-circuit deflagration flame arrestor, which comprises a double-circuit self-degreasing device and a combustion explosion flame arrestor connected to a gas pipeline, wherein the double-circuit self-degreasing device comprises two branch circuits connected in parallel, and each branch circuit is provided with a filter, a pressure detection mechanism and a circuit electromagnetic valve, which are used for controlling the closing of the branch circuit under the condition that the pressure difference of the branch circuit reaches a pressure difference critical value, and controlling the opening of the branch circuit under the condition that the pressure difference of the other branch circuit reaches the pressure difference critical value. The combustion explosion flame arrestor comprises a gas pipeline and a transverse flame arrestor and explosion relief membrane net, a temperature sensor and an electromagnetic valve device arranged in the gas pipeline, which are used for controlling the closing of the gas pipeline under the condition that the temperature of the gas in the pipeline reaches a temperature critical value. The application adopts the pressure detection mechanism and the circuit electromagnetic valve, realizes the double-circuit self-switching in the process of filtering mixed impurities, and can significantly reduce the labor cost.

The utility model discloses an urban underground pipeline biogas disposal and utilization device which mainly comprises a floating ball valve, a first flame arrester, a conveying gas pump, a detection control module, a second flame arrester, an ignition lighting control cabinet, a biogas lamp, an LED lamp, a photovoltaic cell panel, an artificial intelligence control management center, a booster gas pump, membrane method concentration equipment, a gas storage tank and the like. An artificial intelligence control management center collects data transmitted from all positions for analysis, an AI automatically gives an optimal disposal scheme according to a reference case and optimization logic provided by a database, and timely adjusts disposal strategies according to changes of gas flow, components and the like in each pipeline at any time, so that the disposal efficiency is improved. Detection, modeling analysis, instant disposal and intelligent control of the whole urban underground pipeline biogas and other harmful gases are achieved, and the purposes of eliminating dangerous sources and reasonably recycling underground pipeline biogas resources are achieved.