265 results about "Flame arrester" patented technology

The utility model discloses a jacket heat preservation flame arrester for high-oxygen VOCs (volatile organic compounds) to enter dry quenching, which belongs to the technical field of flame arresters and comprises two valve bodies respectively communicated with a gas pipeline for the VOCs to enter the dry quenching and a flame arresting screen arranged between the two valve bodies, a jacket capable of introducing steam to preserve heat is arranged between the two valve bodies, and the two valve bodies are communicated with a gas pipeline for the VOCs to enter the dry quenching. The jacket is arranged on the outer side of the fire-retardant screen; a jacket inlet communicated with a steam pipeline is formed in one side of the jacket, and a jacket outlet communicated with a drain pipeline is formed in the other side of the jacket. According to the utility model, the temperature around the fire-retardant screen can be ensured not to be lower than the crystallization temperature of naphthalene gas, so that the naphthalene gas in VOCs gas can smoothly pass through the fire arrester and then enters dry quenching for incineration, and the VOCs are really discharged without external emission.

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

The 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 invention provides a novel detonation flame arrester which comprises a first shell, and an inlet is formed in the first shell; the third shell and the first shell are symmetrically arranged, and an outlet is further formed in the third shell; the second shell body is arranged between the first shell body and the second shell body; the fire retardant unit is connected in the second shell in a sliding manner; a first spring connected with the first shell is arranged on one side of the fire retardant unit, and a second spring connected with the third shell is arranged on the other side of the fire retardant unit. When explosive shock waves enter the detonation flame arrester, the flame arresting unit slides under the explosive shock, compresses the first spring and stretches the second spring, or stretches the first spring and compresses the second spring.

The invention relates to a low-concentration gas intrinsically safe combustion device, which relates to the technical field of coal resource utilization and comprises a safe ignition unit, a multi-stage backfire prevention unit, a multi-blow-off prevention unit, a combustion chamber, a control unit and an explosion venting unit. The safety ignition unit adopts a staged ignition mode, and the 100% ignition success rate is achieved through a high-energy igniter and a combustion starter; the anti-backfire unit forms three-stage protection through a micro-channel, a quick shut-off valve and an anti-detonation flame arrester, and flame returning is blocked; the anti-blow-off unit is combined with a high-heat-insulation labyrinth type combustion chamber by means of the entrainment effect of a swirler and a flame retention module, so that flame is stable and does not break away; the control unit achieves automatic interlocking control through various sensors, and the explosion venting unit conducts directional explosion venting during overpressure. According to the device, the low-concentration gas with the concentration lower than 30% is subjected to intrinsic safety combustion, and the risks of backfire, blow-off and explosion can be avoided.

The invention relates to the technical field of automobile battery fire prevention, and mainly discloses an anti-spontaneous combustion fire-retardant battery which comprises a battery shell, a plurality of battery packs are arranged in the battery shell, a plurality of pressure relief holes are further formed in the battery shell, and fire barriers are further arranged on the pressure relief holes; the flame arrester comprises a plurality of layers of barrier covers, a flame arresting disc is further arranged at the joint of the barrier covers and the pressure relief hole, and a flame arresting seam is formed in the flame arresting disc; wherein the barrier covers are provided with a plurality of flow-through hole layers in the flow measuring direction of the combustion medium, the flow-through hole layers in every two adjacent barrier covers are arranged in a staggered manner, and the flow-through hole layers and the fire-retardant seams are communicated with the inner space and the outer space of the battery shell, and the technology that after thermal failure of the battery, safe pressure relief can be achieved, and flames can be prevented from spreading outwards can be achieved.

The blast furnace front oxygen enrichment system comprises a low-pressure oxygen pipeline laid between an oxygen station and an iron making plant, the low-pressure oxygen pipeline is connected with a blast furnace blower through an oxygen branch pipe, an air outlet of the blast furnace blower is communicated with an air inlet of a blast furnace, and the oxygen branch pipe is provided with a flame arrester and a second manual stop valve. A security nitrogen pipe is connected between the flame arrester and the second manual cut-off valve, and a stop valve, a nitrogen buffer tank and a nitrogen quick cut-off valve are sequentially arranged on the security nitrogen pipe in the airflow direction; the oxygen analyzer monitors the oxygen content in the oxygen branch pipe in real time and transmits a monitored value to the PLC, the PLC judges whether the oxygen enrichment rate of a preset instruction is reached or not, and the flow regulating valve is regulated through the PLC; the system is simple in structure, reasonable in design, convenient to implement, capable of being effectively applied to blast furnace smelting, capable of saving electric energy and production cost, good in using effect and convenient to popularize and use.

The invention belongs to the technical field of pipeline safety, and particularly relates to an intelligent self-cleaning flame arrester device. The device comprises a cyclone separation device, a fire retardant device, a solid-liquid separation device and an intelligent cleaning system, large-particle impurities can be removed in the impurity pre-separation process based on the cyclone separation device, the blockage probability and the cleaning frequency of a fire retardant core are reduced, the production continuity is improved, and meanwhile, the production efficiency is improved. According to the intelligent cleaning system, the design of multi-angle nozzle mounting holes and nozzle base rotation is adopted, full-coverage cleaning of the end face of the fire-retardant core is achieved, cleaning dead angles are reduced, a heating module of the intelligent cleaning system can further dehydrate and dry pipeline gas, oil stains, impurities and the like blocking the fire-retardant core are made to fall off more easily, and the cleaning efficiency and effect are further improved.

The utility model discloses a flame arrester fire-retardant chip production device which comprises an operation table, the bottom face of the operation table is movably connected with a second extrusion wheel, the center of the top face of the operation table penetrates through a second through groove, the second extrusion wheel is movably connected in the second through groove in a penetrating mode, the top face of the operation table is connected with a top plate in a telescopic mode, and the center of the top face of the top plate penetrates through a first through groove. The top face of the top plate is fixedly connected with two handles in mirror symmetry, the side face of the top plate is movably connected with a limiting piece, the limiting piece is fixed to the top face of the operation table, and the bottom face of the top plate is movably connected with a feeding piece. Adjustment of the distance between the first extrusion wheel and the second extrusion wheel and pressure adjustment of the pressure device can be completed at the same time only by adjusting the distance between the top plate and the operation table.

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.

The utility model discloses a process system for treating desorption waste gas in a matching way, which comprises an equipment main body, the equipment main body comprises a stock bin, a heating desorption section and a desorption cooling section, an activated carbon layer and a bag-type dust collector are respectively arranged in the stock bin, the bag-type dust collector is connected with a chimney through an air supply fan in a sealing way, and the chimney is connected with the equipment main body. A high-temperature bag-type dust collector, a flame arrester, a first cooling heat exchanger, a mechanical degreaser, a desorption fan, a rotary RTO and a second cooling heat exchanger are arranged in the heating desorption section, and a heat preservation dust collector, a fresh air fan and a heating heat exchanger are installed in the desorption cooling section; and the desorption cooling section is hermetically connected with the heating desorption section through a high-temperature gas blower. According to the utility model, gases with different properties generated by desorption are classified and treated, and the heat of the desorbed gases is recycled, so that certain energy waste and subsequent production cost can be reduced, and good energy-saving and environment-friendly effects are achieved.

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 double-wall battery charging cabinet may include: an outer cabinet wall; an inner cabinet wall spaced apart from the outer cabinet wall to form a thermally insulated air gap between the inner cabinet wall and the outer cabinet wall, the inner cabinet wall defining an interior volume; and an air convection port disposed through the outer cabinet wall and the inner cabinet wall. The cabinet may also include: a flame arrester disposed inside or near the air convection port; a damper located near the air convection port; a fuse link for holding the damper in the open position, the fuse link having a predetermined melting point at which the damper is released to slide horizontally from the open position to the closed position; and a power outlet disposed within the interior volume.

The invention discloses a waste lye desulfurization tail gas treatment system and method.The waste lye desulfurization tail gas treatment system comprises a desulfurization unit, a tail gas pretreatment unit and a tail gas co-treatment unit; the input end of the desulfurization unit is connected with a waste alkali liquid discharging device, the liquid output end of the desulfurization unit is connected with a waste alkali liquid resource utilization device, and the tail gas co-processing unit comprises a first heat exchanger, a flame arrester, a combined heat and power generation boiler and a flue gas treatment device; the cold side input end of the first heat exchanger is connected with the output end of the tail gas pretreatment unit, the hot side input end of the first heat exchanger is connected with the first output end of the combined heat and power generation boiler, and the cold side output end of the first heat exchanger is connected with the input end of the flame arrester. And finally, up-to-standard emission is realized, the treatment energy consumption is effectively reduced, meanwhile, the construction, operation and maintenance cost of a tail gas incinerator is saved, and the requirements of energy conservation and emission reduction are met.

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 invention discloses a bag type dust collector with pre-dust-removing and fire-retarding functions. Comprising an air inlet flue (1), a flame arrester (2), a flame arrester ash hopper (3), a top air inlet flue (4), a connecting pipe (5), a top vertical air inlet bag type dust collector (6) and an air outlet flue (7), the flame arrester (2) comprises a flame arrester shell (21); a baffling impact plate (22) and a suspension device (23) are arranged in the flame arrester shell (21); the suspension device (23) is fixedly connected with a wall plate of the flame arrester shell (21), and the baffling impact plate (22) is fixedly connected with the suspension device (23); and a vertical air inlet pipe (62) and a contracted shutter deflector (63) are coaxially arranged in the vertical direction of the top plane position of the top vertical air inlet bag type dust collector (6). The spark trapping capacity and effect of the bag type dust collector are remarkably improved, the risk that the filter bag is burnt by the sparks is effectively avoided, and the operation safety of the filter bag and the dust collector is guaranteed.

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 discloses a deep coal and rock gas fracturing and permeability increasing device impacted by blasting gas, and belongs to the technical field of deep coal and rock gas fracturing and permeability increasing. The deep coal and rock gas fracturing and permeability increasing device impacted by the blasting gas comprises a gas inlet pipe for controlling hydrogen and oxygen gas conveying, a mixing tank is connected to the gas inlet pipe in a penetrating mode, and a combustion tank is fixedly connected to the mixing tank; a flame arrester for preventing combustion backfire is mounted between the combustion tank and the mixing tank, and an igniter is fixedly mounted in the combustion tank; a flow control valve for controlling gas circulation and a pressure sensor are mounted on the gas inlet pipe; the end, away from the flame arrester, of the combustion tank is provided with an energy-gathered nozzle, the energy-gathered nozzle is covered with a hollow guide column, the hollow guide column is rotationally provided with a guide ring plate, and the end face of the combustion tank is provided with a steering mechanism for regulating and controlling the hollow guide column to optimize the direction of high-temperature and high-pressure gas. And the output direction of high-temperature and high-pressure gas guided by the hollow guide column and the guide ring plate is adjusted, so that cracks are formed more accurately, and the fracturing effect is improved.

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 present invention provides a staged ammonia-assisted burner that utilizes exhaust gas recirculation for preheating. This burner, belonging to the field of burners, includes a reaction gas duct, an exhaust gas duct, a combustion duct, a secondary air duct, a cyclone, an air distributor, an igniter, and a flame arrester. The cyclone is installed at the rear of the intersection of the reaction gas duct and the exhaust gas duct, and the air distributor is installed at the intersection of the reaction gas duct and the secondary air duct. A flame arrester and an igniter are installed at the front and rear of the combustion duct inlet, respectively. A flame arrester is installed at each end of the secondary air duct outlet. After exhaust gas recirculation for preheating, a small portion of the reaction gas is fed into the combustion duct by the air distributor. Ignition by the igniter forms a stable, stagnant flame, which then ignites a large amount of mixed gas from the secondary air duct. This invention addresses the difficulty of stable ammonia ignition and combustion. Furthermore, the invention has a simple structure, is easy to manufacture, and has strong component adaptability, promoting the energy utilization of ammonia.

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.