350results about "Combustion ignition" patented technology

The pulverized coal rotational flow stable combustion burner comprises a shell, a primary air pipe, a first swirler, a backflow cap and a laser generator assembly, a secondary air duct is defined between the primary air pipe and an air guide section, the first swirler is arranged in the secondary air duct, the backflow cap is arranged in the secondary air duct, and the laser generator assembly is arranged in the secondary air duct. The backflow cap is arranged in the combustion chamber and located at the outlet end of the primary air pipe. The laser generator assembly is used for emitting sheet-shaped laser beams into the combustion chamber so as to ignite pulverized coal in the combustion chamber. According to the invention, the size and the shape of the laser beam spot are adjusted, and the ignition efficiency and the stability in the pulverized coal combustion process are obviously improved by the aid of a cooling and combustion control strategy in which tertiary air and secondary air are matched; meanwhile, the laser power and mode can be flexibly switched, different coal quality and load working conditions can be adapted, the adaptability and combustion efficiency of the combustor are greatly improved, the service life of a hearth and related parts is prolonged, and the operation cost is reduced.

The invention discloses a DCS (Distributed Control System)-based ignition and temperature rise mode of a copper anode slime roasting rotary kiln, which specifically comprises the following steps of: setting initial control conditions, drawing a temperature rise curve according to a target temperature, a temperature rise period and a temperature rise gradient, and then starting ignition preparation. Before natural gas is introduced into the combustion chamber for combustion, rotary kiln operation and combustion-supporting air purging are carried out, after purging is carried out for a period of time, combustion-supporting air and natural gas are introduced for ignition at the same time, and meanwhile the ignition condition is judged through a monitor. And if ignition fails, under the condition of no abnormity, purging can be repeated, and natural gas is introduced for re-ignition. According to the method, the natural gas flow and the combustion-supporting air volume are automatically controlled by the DCS according to the drawn temperature rise curve. The system has the beneficial effects that multiple ignition conditions can be controlled at the same time, remote automatic ignition is achieved, the ignition condition is fed back in time, the natural gas flow is flexibly controlled, the combustion temperature is controlled, the ignition effect of the rotary kiln is guaranteed, and meanwhile production operation safety of the rotary kiln is guaranteed.

A method and an unmanned aerial vehicle for identifying and remediating a gas leak. The method includes flying the unmanned aerial vehicle towards a possible location of the gas leak, then detecting a first condition indicative of the gas leak with a first sensor and sensing environmental conditions near the gas leak with an environmental sensor. The method includes receiving, by a controller, a signal representing the first condition indicative of the gas leak and a signal representing the environmental conditions. The method includes determining, based on the first condition indicative of the gas leak and the environmental conditions near the gas leak, a flight plan including an ignition zone. The method includes positioning, based on the flight plan, the unmanned aerial vehicle relative to the ignition zone and discharging, by an ignition mechanism, an ignition source into the gas leak to ignite the gas leak.

The invention discloses a detection circuit and a detection method for detecting whether a combustor is successfully ignited or not. The detection circuit comprises a combustor controller, an ignition coil, a first spark plug, a second spark plug, a first ignition high-voltage wire and a second ignition high-voltage wire. And the first ignition high-voltage wire is connected with the ignition coil and the first ignition electrode. And the first ignition high-voltage wire transmits a high-voltage pulse signal to the first ignition electrode. And the second ignition high-voltage wire is connected with the ignition coil and the second ignition electrode. And the second ignition high-voltage wire transmits a high-voltage pulse signal to the second ignition electrode. The first ignition electrode and the second ignition electrode are used for enabling high voltage difference between the first ignition electrode and the second ignition electrode to break down gas to form sparks, and fuel oil is ignited by the sparks to form flames. If the first ignition electrode, the second ignition electrode and the shell of the combustor form a loop to generate a current signal, it is judged that ignition succeeds; otherwise, judging that ignition fails.

The invention relates to the technical field of subway tunnel fire experiment, and discloses a variable-pressure reduced-size subway tunnel / train compartment double-long-narrow-space fire experiment platform which comprises a tunnel body, a ventilation unit, a monitoring unit, a rail unit and a train unit, and a fire source structure is arranged in the train unit. According to the variable-pressure reduced-size subway tunnel / train compartment double-long-narrow-space fire experiment platform, a fire source structure is arranged, when a fire experiment needs to be carried out, a top fan, two side fans and a main fan are started through a wireless receiver, the wind speed during high-speed running of a train is simulated, and then a remote control igniter is remotely and wirelessly connected; the top fan, the two side fans and the main fan are remotely turned off after a certain time, a real fire disaster is simulated, the fire source structure can simulate the effect that the fire source continuously burns the multiple carriages after a train runs at a high speed, and the authenticity is high.

A plasma generator protection device is provided. The plasma generator (1) has a mounting base (11) and a spray gun (12) extending into the combustion chamber. A sleeve (2) is fitted to the outside of the spray gun and serves to withstand the flushing of the primary air flow of pulverized coal in the combustion chamber instead of the spray gun. A powder slag cleaning unit including a scraper is attached to the sleeve, with the length of the scraper aligned with the length of the spray gun. The scraper is driven by an annular drive mechanism and rotates along a circumferential path on the outer surface of the sleeve. Its movement path is closely attached to the outer circumferential surface of the sleeve, and its rotation axis overlaps the geometric axis of the sleeve, so that it can clean the powder slag that has adhered to the sleeve at high temperatures. The sleeve blocks the brushing of the pulverized coal flow, and the annular drive scraper cleans the powder slag, thereby ensuring the heat dissipation performance of the spray gun, significantly extending the service life of the spray gun, reducing maintenance costs, and improving the operational stability and economy of the device.

The invention relates to the technical field of combustion equipment, and discloses a pure ammonia combustor carrying ammonia catalytic combustion and decomposition compositing and a control method.The pure ammonia combustor comprises a combustion sleeve, the combustion sleeve comprises an inner sleeve body and an outer sleeve body, an outer cavity is formed between the inner sleeve body and the outer sleeve body, and the inner sleeve body is provided with an inner cavity; the inner cavity comprises a combustion nozzle, a combustion cavity and a to-be-combusted cavity, a first ignition device is arranged between the combustion cavity and the to-be-combusted cavity, the to-be-combusted cavity communicates with a first air inlet, and the outer cavity comprises a preheating cavity, a combustion catalysis cavity and a catalytic decomposition cavity; the preheating cavity is located on the periphery of the combustion cavity. The combustion catalysis cavity is located on the periphery of the to-be-combusted cavity and provided with an ammonia catalytic combustion catalyst and a second ignition device, and the catalytic decomposition cavity is provided with an ammonia catalytic decomposition catalyst and communicates with the to-be-combusted cavity. The problems that pure ammonia ignition is difficult, the laminar flow combustion speed is low, flames are difficult to stabilize, and NOx emission is high are solved.

The invention discloses a plasma ever-burning ignition control system which is composed of a communication module, an ignition execution module, a power supply control module and a monitoring module. Through the real-time monitoring module and the analysis module, the purpose of reducing tempering easily caused by an existing plasma torch during ignition is achieved, the tempering phenomenon can be solved in time after tempering occurs, the use risk is reduced, the collaboration among the system modules is good, and the safety of the system is improved. The communication module, the ignition execution module, the power supply control module and the monitoring module are clear in labor division and closely cooperate, communication modes are diversified, internal efficient interaction and remote monitoring management can be achieved, power supply control is accurate, voltage can be stably adjusted, parameters can be monitored and analyzed in real time, and it is guaranteed that plasma is stably generated and ignition is successful.

The present invention discloses a laser ignition device and a laser ignition control method. The laser ignition device includes: a control host; a laser emitting device electrically connected to the control host and, under control of the control host, emitting a laser toward a target to ignite the target; and a flame identification device electrically connected to the control host and configured to detect a flame and output a corresponding flame detection signal to the control host. The control host is configured to control the laser emitting device to emit or stop emitting the laser based on the flame detection signal. The present invention can solve the problem of high energy consumption in existing laser igniters.

The invention discloses a medium and long distance projection type ignition device for forests, and belongs to the technical field of field ignition, the medium and long distance projection type ignition device for forests comprises a launching tube assembly, a pneumatic propelling system, an ethylene glycol liquid injection system, a combustion ball ammunition supply mechanism, a trigger assembly and an operating handle, a sliding sleeve is arranged on the launching tube assembly, and the launching tube assembly is movably installed on the operating handle through the sliding sleeve; the pneumatic propelling system is detachably and fixedly connected with the operating handle, and the pneumatic propelling system is communicated with the launching tube assembly through a high-pressure gas pipeline; the ethylene glycol liquid injection system is detachably and fixedly connected with the transmitting tube assembly, and an injection port of the ethylene glycol liquid injection system corresponds to an inner cavity of the transmitting tube assembly; a ball falling hole is formed in the bottom of the combustion ball supply mechanism; and the trigger assembly is linked with a control valve of the pneumatic propulsion system. The remote ignition device is suitable for various scenes such as forest fire prevention, ecological burning, power transmission line obstacle removal and the like, and is a remote ignition tool which has the advantages of remote projection, accurate control, safety, reliability and convenience in maintenance.

A flame out candle system and method for automatically retracting and extinguishing a wick flame. The system includes a candle, a wick, and a puck assembly. The candle includes a bore to receive the wick, and a cavity to receive the puck assembly. The puck assembly can include a motor driven power screw or spur gears associated with spaced apart pinion gears. The puck assembly is removable from the candle for reuse in another candle. A wick engaging member can be operatively associated with the power screw for linear movement that is transferred to the wick. The pinion gears can be engageable with a rack gear positioned therebetween so rotation of the pinion gears translates into linear motion of the wick. A computer system can be utilized to control the motor based on a time signal, an activation signal, a sensor signal or any wireless signal.

The invention discloses a jet igniter and combustion chamber efficient coupling device and an implementation method.The jet igniter and combustion chamber efficient coupling device comprises an igniter body and a gas inlet nozzle, the end, in the length direction, of the igniter body is in threaded connection with a combustion chamber, and the gas inlet nozzle is arranged on the side wall of the igniter body so that gas can conveniently enter the igniter body along the gas inlet nozzle; an included angle is formed between the air inlet nozzle and the igniter body so that air inlet resistance can be reduced, the included angle comprises a radial included angle and an axial included angle, the radial included angle is an included angle between radial airflow and a perpendicular line, and the axial included angle is an included angle between axial airflow and the axis of the igniter body. And the air flow enters the igniter body along the air inlet nozzle to form a radial air inlet angle or an axial air inlet angle. The gas inlet nozzle is arranged on the side wall of the igniter body, and the included angle is formed between the gas inlet nozzle and the igniter body, so that the gas flow utilization rate is increased, the gas flow loss is reduced, and the purpose of improving the ignition efficiency is achieved.

The present invention refers to a barbecue (10) equipped with: a) a brazier (20), b) at least one grill (30) placed above the brazier (20) and suitable for housing the food to be cooked, c) a series of contiguous vertical walls (40) arranged above the brazier (20) and suitable to surround the brazier (20) itself and to create an empty space (50) interposed between the brazier (20) and the at least one grill (30). Furthermore, the barbecue (10) of the present invention comprises an air delivery system and a water delivery system provided with the same plurality of nozzles (1), arranged at the contiguous vertical walls (40) and adapted to deliver, alternatively, air or water. In this way, the air delivery is useful both to facilitate the combustion ignition and for the fire maintenance and the water delivery is useful in case of need to extinguish any flames released, without wetting the food being cooked. Therefore, the elements present in the barbecue (10) of the present invention make cooking food on the grill (30) more practical and easier to perform, also improving cooking performance.

The utility model discloses a flame-stabilizing energy-saving multifunctional incandescent light which comprises a fuel pipe, one end of the fuel pipe is fixedly connected with a fixing block, the fuel pipe is provided with a flame-stabilizing burning head, the fixing block is provided with a fixing mechanism used for fixing the flame-stabilizing burning head, and the fixing mechanism comprises a clamping assembly and a fixing assembly. The clamping assembly is used for clamping the flame stabilizing burning head, the clamping assembly comprises an annular groove, the annular groove is formed in one side of the fixing block, the flame stabilizing burning head is placed in the annular groove, a pair of first clamping grooves is formed in the fixing block, a pair of second clamping grooves is formed in the flame stabilizing burning head, and the first clamping grooves are matched with the second clamping grooves. The problems that a flame head of the incandescent light cannot be detached, the performance of the incandescent light is reduced, ignition is difficult and the like due to residues generated in the long-time fuel magazine or combustion process of the flame head, and cleaning is not convenient enough due to the fact that an integrated design is generally adopted in the prior art are solved.

The present invention relates to the technical field of coal powder combustion, and in particular to a coal powder burner and a combustion system. The coal powder burner includes: a concentration device, which separates the coal powder into concentrated powder and light powder; a combustion device, which includes a cylinder and a partition, wherein the inlet of the cylinder is connected to the outlet of the flow pipe, and the partition is eccentrically arranged in the cylinder downward, and divides the internal space of the cylinder into a combustion zone and a cooling zone, wherein the combustion zone is located above the partition and is used to receive concentrated powder, and the cooling zone is located below the partition and is used to receive light powder, and the partition is retractable; and an ignition device, which includes an ignition source, and the ignition source is inserted into the combustion zone. In this way, the use flexibility of the coal powder burner can be effectively improved.

The utility model discloses an optical window for a laser igniter, comprising a laser diode for ignition, a laser igniter shell, a primary window and a secondary window; the main body of the laser igniter shell comprises a hole penetrating the entire main body, the primary window and the secondary window are separated by an attenuator, wherein the primary window and the secondary window are coaxial and have the same radial size, the attenuator is coaxial with the primary window and the secondary window and has a smaller radial size than the primary window and the secondary window, and the design of the optical window ensures that the transmission detonation in the laser ignition device does not destroy the pressure integrity of the device; the right end face of the secondary window is coated with a mirror coating and a protective coating in sequence, the mirror coating and the protective coating are coaxial with the secondary window, the mirror coating reflects incident stray light and detection laser, thereby improving the safety and reliability of the igniter; the protective coating plays a role in passivating the mirror coating, and both the mirror coating and the protective coating can be ablated by the ignition laser.

A self-extinguishing moxa stick inserting sleeve is used for inserting a moxa stick, an inserting cavity is formed in the inserting sleeve, the inner wall of the inserting cavity is attached to the outer wall of the moxa stick, and an annular protrusion is arranged on the inner wall of the inserting cavity in the circumferential direction of the inserting cavity and used for preventing smoke generated by burning of the moxa stick from diffusing upwards through the inserting sleeve. As the surface, in contact with air, of the moxa stick becomes small and the inserting sleeve absorbs combustion heat of the moxa stick, the moxa stick enters the extinguishing stage and is extinguished, extinguishing of the moxa stick is controlled, and the moxa stick is saved.

The utility model discloses a multistage injection low-nitrogen combustion head, which relates to the technical field of low-nitrogen combustors, and comprises a combustion head main body, a shell and an igniter, the top of the shell is provided with an electric cylinder through a cover plate, one side of the top of the shell is provided with a motor, the output end of the motor is connected with a gear, and the lower part in the shell is connected with a bracket; the support is sleeved with a gear ring, the interior of the support is connected with a baffle through a torsional spring shaft, and the top of the baffle is connected with a cleaning brush. Through the arrangement of the electric cylinder, the baffle and the torsional spring shaft, after the igniter is not used, the igniter is pulled into the shell through the electric cylinder, and meanwhile, the torsional spring shaft drives the baffle to be closed to shield the bottom of the igniter, so that the phenomenon that impurities generated by combustion make contact with the igniter is reduced, and the phenomenon that the end of the igniter becomes dirty is delayed; and contact between impurities and the igniter is reduced, so that cleaning intervals are reduced.

The invention provides an underground coal gasification ignition device and method, relates to the technical field of underground coal gasification, and aims to improve the ignition success rate and the ignition reliability. The underground coal gasification ignition device comprises a multi-channel continuous pipe, a combustor, a first release sub and an ignition structure which are connected in sequence. A fuel injection channel and an oxygen injection channel are arranged in the multi-channel continuous pipe and the combustor, a nozzle is arranged in the combustor, and the fuel injection channel and the oxygen injection channel are both communicated with the nozzle. A first connecting piece is arranged between the first releasing sub and a shell of the ignition structure in a penetrating mode, and when the load borne by the first connecting piece is larger than a first preset load, the first connecting piece is broken, so that the first releasing sub is separated from the ignition structure. A spraying hole facing the nozzle is formed in a shell of the ignition structure, ignition equipment and a grain are arranged in the shell of the ignition structure, after the first connecting piece is broken, the ignition equipment ignites the grain to form ignition flames, the ignition flames are sprayed out from the spraying hole, fuel is ignited, and then the coal seam is ignited.

Provided in the present application are a semiconductor process apparatus and an ignition chamber thereof. The ignition chamber comprises a chamber body and a conveying line. The chamber body comprises an inner combustion-chamber wall and an outer combustion-chamber wall that surrounds the inner combustion-chamber wall, wherein a diluent gas channel is formed between the inner combustion-chamber wall and the outer combustion-chamber wall; a diluent gas line is connected to the outer combustion-chamber wall and is in communication with the diluent gas channel; and a fuel gas line and a combustion-supporting gas line are connected to the inner combustion-chamber wall and are both in communication with the interior of a combustion chamber. The conveying line is configured to connect to a process chamber of a semiconductor process apparatus, and the conveying line is connected to the outer combustion-chamber wall and is in communication with the diluent gas channel; and an output port is provided in the inner combustion-chamber wall and connects the interior of the combustion chamber to the interior of the conveying line. A fuel gas and a combustion-supporting gas react in the combustion chamber to generate a reaction product. Heat produced during the reaction can heat a diluent gas, and the temperature of the heated diluent gas is higher than the dew-point temperature of the reaction product, thereby avoiding condensation of the reaction product, and also avoiding the problem of particles exceeding the standard.

An open-width singeing machine comprises a cloth feeding device, a singeing device, a steam fire extinguishing device and a cloth discharging device, the output end of the cloth feeding device is connected to the output end of the singeing device, the output end of the singeing device is connected to the output end of the steam fire extinguishing device, and the output end of the steam fire extinguishing device is connected to the cloth discharging device; the singeing device comprises a machine shell, a first cloth guide assembly, a cooling roller, a fire hole, a first driving part, a second driving part, a smoke suction assembly and a cloth pressing assembly. The utility model provides the open-width singeing machine according to the content, and solves the problems that the singeing mode of the singeing machine in the prior art is relatively single, and the singeing machine cannot be compatible with cloth with different materials or different thicknesses for singeing.

The utility model discloses an ignition device for fire training. The ignition device comprises a cooling water cavity, a cooling air cavity and an ignition cavity, the cooling air cavity is arranged at the front end of the cooling water cavity, and the cooling air cavity and the cooling water cavity are separated through a water baffle. A cooling fan is installed in the cooling water cavity and fixed to the water baffle, and the air outlet end of the cooling fan penetrates through the water baffle to be communicated with the cooling air cavity. The ignition cavity is formed in the front end of the cooling air cavity, an ignition device body is arranged on the water baffle, the ignition end of the ignition device body penetrates through the cooling air cavity to be arranged at the ignition cavity, and the energy supply end of the ignition device body is arranged in the cooling water cavity. The ignition cavity is designed at the front end of the ignition device, and the fire outlet faces downwards, so that wind is prevented from entering the ignition cavity from all directions to the greatest extent, and the ignition process is not influenced; in addition, the cavity is always in a positive pressure state through air supply of the fan, and outdoor air (vortex air) is prevented from entering the cavity to affect ignition.

The invention provides an ignition assembly, a natural gas incineration device and an LNG transport ship. The natural gas incineration device comprises a combustion chamber, and the ignition assembly comprises a supporting disc, a combustion head and an igniter. The supporting disc is connected to the combustion chamber and provided with an air inlet hole used for introducing combustion-supporting air into the combustion chamber. The combustion head is connected to the side, close to the interior of the combustion chamber, of the supporting disc, the peripheral side of the combustion head forms a grid-shaped pipe wall, the grid-shaped pipe wall comprises a plurality of grid rings, the grid rings are arranged in the axial direction of the ignition assembly, the adjacent grid rings are elastically connected and form a vacant part, and the vacant part is used for introducing BOG gas into the combustion chamber. The igniter is arranged on the side, close to the combustion chamber, of the supporting disc. According to the ignition assembly, the gas amount of the BOG gas entering the combustion chamber can be adjusted according to the working condition change of the BOG gas, so that combustion of the BOG gas and combustion-supporting air is more sufficient, the emission of the LNG transport ship reaches the standard, and the safety of the LNG transport ship is also improved.

The present invention relates to a wirelessly programmable electronic device for igniting an explosive accessory designed such that the electronic device can be located on the surface of the blasting area and the explosive accessory can be located underground. For this purpose, the invention comprises a printed circuit board inside a casing, said board being powered by batteries placed inside the same casing. The printed circuit board has a controller and a wireless communication module electrically connected thereto which allows it to be connected to and receive delay and activation programming commands by a remote activation device to the controller. Said activation device has an operating system that allows multiple devices of the invention to be programmed due to the assignment of a single identifier to each device. The printed circuit board has a group of resistors and transistors connected thereto for activating and sensing droplets; a horn and LEDs as an audible and visual indicator of the status of the device; an on / off switch; and a crystal oscillator connected to the controller. The board is connected to a conductor cable that is welded at its other end to a secondary board that has an ignition droplet. Said board is located inside the plastic adapter along with the blasting cap and ensures the start of detonation in case of a break in the cable.

The invention discloses a plasma pulverized coal burner ignition operation control method and device based on big data, and relates to the technical field of ignition operation control. The method comprises the following steps: establishing a staged behavior skeleton of ignition operation of the plasma pulverized coal burner; historical ignition operation data are collected, and a behavior alignment sample set is obtained through staged behavior skeleton alignment; successfully-ignited samples are clustered, and an ignition success behavior track cluster is generated; based on the ignition success behavior track cluster, mapping rules of different coal quality categories and ignition behavior tracks are established, and stage target windows of various coal qualities are generated; selecting a corresponding reference track from an ignition success behavior track cluster according to the current coal quality category, and generating an ignition operation control instruction set in combination with a stage target window; executing the control instruction set and collecting real-time data; the instruction set is dynamically corrected according to the deviation between the real-time data and the reference track, so that the real-time ignition behavior track converges towards the reference track until ignition is completed.

The lighting device based on the light refraction principle comprises a light source assembly and a light condensation assembly, a light-emitting part is arranged in the light source assembly, a light outlet is formed in one end of the light source assembly, a switch is arranged on a shell of the light source assembly, and light generated by the light-emitting part is emitted out of the light outlet. One end of the condensation assembly is fixedly connected with the end, provided with the light outlet, of the light source assembly, the other end of the condensation assembly is provided with a condensation outlet, a spherical focusing lens is arranged in the condensation assembly, light emitted by the light outlet is focused by the spherical focusing lens and then emitted out from the condensation outlet, and a concentration point is formed in front of the condensation outlet. Scattered light rays are focused into a concentration point through the spherical focusing lens, and the concentration point is high in light intensity, so that energy of a light source is concentrated, heating is concentrated, the purpose of igniting articles is achieved, open fire is avoided, and the use is safer.

The present invention provides a laser ignition device for thermal combustion, comprising: a light generating assembly, a light transmission assembly, an ignition assembly, and a light blocking assembly. The light generating assembly includes a first light source configured to emit a first light beam, the first light beam being a laser. The light transmission assembly is configured to transmit the first light beam to the ignition assembly. The ignition assembly includes a light guiding assembly and an ignition nozzle located at the end of the light guiding assembly. The light guiding assembly is configured to guide the first light beam along a guiding direction and ejected through the ignition nozzle for ignition. The light blocking assembly is located on a side of the ignition nozzle away from the light guiding assembly in the guiding direction and is configured to block the entire first light beam ejected from the ignition nozzle. The laser ignition device utilizes laser-assisted ignition, which not only serves as an ignition device but also assists and stabilizes combustion.

The invention is applicable to the technical field of dangerous chemical accident emergency rescue, and provides a movable emptying ignition device for a blast gas tank truck, which comprises an emptying ignition mechanism, the emptying ignition mechanism comprises a counterweight base and a combustion gun arranged on the counterweight base and used for combusting combustible gas exhausted from the tank truck; the air temperature type vaporizer is arranged on one side of the combustion gun and used for rapidly vaporizing the liquid state; and the gas-liquid separation tank is arranged on the frame of the air temperature type vaporizer and is used for separating the liquid which is not completely vaporized again, and the gas-liquid separation tank is connected with the air temperature type vaporizer through a pipeline. The movable emptying ignition device of the blast gas tank car is easy to operate, safe, reliable and efficient in disposal, the flexibility of gas-phase / liquid-phase discharge of materials and the safety of remote ignition are achieved, the pressure in the tank is remarkably reduced with the high emptying combustion efficiency, and the gas-phase / liquid-phase discharge safety of the materials is improved. And a more advanced, active and reliable solution is provided for emergency rescue of dangerous chemical accidents.

The outdoor warmer comprises a furnace end located at the top of the warmer, a supporting rod supporting the furnace end and a base supporting the supporting rod, a gas valve used for adjusting the flame size and an ignition assembly used for ignition of the warmer are arranged in the furnace end, and the gas valve comprises a main valve and an automatic control valve. The fuel gas path passing through the main valve comprises a main gas path and an ever-burning fire gas path, the automatic control valve is arranged on the main gas path, the main gas path further comprises an ignition disc, the automatic control valve controls the fuel gas flow of the ignition disc, the ever-burning fire gas path comprises an ever-burning fire pipe, and the ever-burning fire pipe is arranged on the main gas path. The ignition assembly is close to the ever-burning fire pipe to ignite fuel gas of the ever-burning fire gas circuit, the ever-burning fire pipe is close to the ignition disc, and flames of the ever-burning fire pipe can ignite the ignition disc. The ignition assembly of the warmer is long in service life.