339 results about "Smoke flow" patented technology

The utility model discloses a plate heat exchanger, belongs to the field of air pre-heaters, solves the problem that in the prior art, plates of a plate heat exchanger are prone to damage when heat exchange is conducted in dust-containing flue gas, and adopts the technical scheme that the plate heat exchanger comprises a heat exchange plate, and the heat exchange plate is formed by welding and fixing two thin plates through a plurality of welding parts; the non-welded portions of the thin plates are far away from each other to form a gas flowing cavity, the edges, close to the smoke flowing-in side, of the two thin plates of the heat exchange plate are first ends, the first ends are fixed through welding parts, guiding pieces are installed at the first ends, and the thickness of the guiding pieces is larger than that of the two thin plates. The dust-containing flue gas heat exchanger is mainly used for realizing heat exchange in dust-containing flue gas at low cost.

The invention discloses an intelligent layering and guiding device for highway tunnel fire smoke and a control method, and relates to the technical field of tunnel fire safety, a smoke flow Froude number is introduced as a direct control target, the parameter represents the ratio of smoke flow inertia force to buoyancy force, the numerical value directly determines the stability of a layering interface, and the layering interface can be directly controlled. The Froude number of each subarea of the tunnel is calculated in real time through a sensing network and is compared with a critical value calibrated through an experiment, when a real-time value is lower than the critical value, it is indicated that inertia force is relatively insufficient, the buoyancy effect is dominant, and instability and entrainment are likely to happen to an interface between a smoke layer and lower cold air, and then according to a control algorithm, the smoke layer and the lower cold air are controlled. The micro jet fan applies directional inertia force to a smoke layer by adjusting the angle and the speed, the intelligent induction smoke outlet optimizes local pressure difference and flow by adjusting the opening degree and assists in maintaining flowing, the smoke flowing state is actively locked in a stable layered flow interval, and mixing and sedimentation caused by flow state instability are prevented.

The invention provides a CFD optimization-based air volume matching and linkage control method and system for a smoke prevention and exhaust system of an underground powerhouse, and belongs to the technical field of underground smoke exhaust systems. The method comprises the following steps: performing physical modeling according to an actual underground powerhouse, and performing grid division, solver selection, boundary condition setting and airflow field change simulation to obtain an initial airflow field; cFD is adopted to simulate temperature changes, smoke concentration changes and airflow changes in different fire scenes, wind flow and smoke flow in the underground powerhouse are analyzed, the defects of an existing system are evaluated, and smoke exhaust pipeline arrangement and fan configuration are optimized according to the defects; the airflow change in the fire environment is dynamically calculated by combining the real-time monitoring system and the CFD, and the air volume of the pressurized air supply system, the smoke exhaust system and the air supplement system is adjusted. Efficient linkage of the system is achieved, while personnel evacuation safety is guaranteed, the smoke exhaust efficiency and the emergency response capacity are improved, energy consumption is reduced, and the dual goals of energy saving and efficiency improvement are achieved.

The invention discloses a fire-fighting smoke exhaust pipeline laying planning system based on an industrial cloud platform, and relates to the technical field of pipeline laying planning, and the system comprises a building information collection module which collects building data; the cloud edge cooperative computing module is used for constructing a smoke exhaust simulation model by using distributed computing resources of an industrial cloud platform and carrying out real-time parameter iteration through edge nodes; the pipeline path planning module is used for generating a plurality of candidate laying paths by using an improved algorithm and carrying out path optimization based on a pipeline resistance coefficient and a construction cost constraint condition; and the scheme verification and optimization module is used for carrying out smoke flow dynamics simulation verification on the optimal path scheme, identifying scheme defects and carrying out iterative optimization on path parameters through a genetic algorithm. According to the invention, through a cloud-edge collaborative intelligent computing architecture, a multi-dimensional constrained dual-target optimization mechanism and a dynamic adaptive path planning and verification system are fused, and collaborative improvement of fire-fighting smoke exhaust pipeline laying planning in accuracy, efficiency and compliance is realized.

The invention provides a lithium ore roasting waste heat recovery device and a process for extracting beryllium from lithium-containing ore. The waste heat recovery device comprises a box body, an adjusting mechanism and a heat exchange pipe. A first dispersion cover and a second dispersion cover are mounted on the left side and the right side of the box body through bolts, and the adjusting mechanism is located outside the second dispersion cover; the adjusting mechanism comprises a discharge pipe, a mounting cover and an adjusting motor, the discharge pipe is fixedly arranged at the outlet end of the second dispersion cover, and the mounting cover is hermetically mounted at the outer end of the discharge pipe through a bolt. The flow channel of the heat exchange element is designed to be of a reducing structure with a thick inlet and a thin outlet, at the moment, a high-temperature section at the inlet position can fully exchange heat, but the heat of smoke entering a low-temperature section is not higher than that of the high-temperature section, the inner diameter of the outlet section can be reduced, the smoke flow is small at the moment, and therefore most smoke can be gathered in the low-temperature section, and full heat exchange of the low-temperature section can be achieved.

The utility model discloses handheld high-negative-pressure dust removal equipment, which relates to the technical field of welding fume treatment and particularly comprises a device body, an air inlet end of the device body is connected with a welding fume flowing pipe, and the other end of the welding fume flowing pipe is connected with a welding gun of manual welding equipment through a dust collection suite. The other end of the welding fume flowing pipe is fixed on the body of a worker through a fixing structure; the dust collection suite comprises a main body, the main body is of a hollow structure, and a through hole is formed in one end of the main body. The handheld high-negative-pressure dust removal equipment is located at the front end of a welding gun and can effectively absorb harmful smoke dust generated in the welding process; the arms and the back or the waist of a worker are fixed, so that the weight borne by the hands of the worker during welding is effectively reduced, the labor intensity of the worker is reduced, and the production efficiency is improved; the dust collection suite connected with the welding gun is various in specification, can be matched with welding guns of different specifications and models in the market, and is wide in application range.

The invention relates to the technical field of fire monitoring, in particular to an intelligent fire monitoring and early warning method. A Gaussian distribution model is introduced to simulate the diffusion effect of a heat source, the adaptability of smoke flowing to airflow in a building is enhanced, limitation of a traditional smoke diffusion model is corrected and optimized according to local turbulence driven by differential pressure, especially the non-uniform airflow effect in areas such as narrow galleries and courtyards, and accurate monitoring and early warning of fire disasters are achieved. The expected speed and comfortable distance of the crowd are dynamically adjusted by combining light flow sensing with environment sensing (such as smoke concentration and temperature), and the problems of people flow and evacuation path optimization in a high-density scene can be effectively solved. Especially in a narrow space, interaction between crowds and obstacles can be fed back in real time, and secondary accidents caused by crowd density or high temperature and smoke influence are prevented.

The application belongs to the technical field of emergency management and control, and specifically discloses a flexible blocking device, which comprises a box body, a smoke forming unit is installed in the box body, and a light curtain belt forming unit is further installed on one side of the box body; the smoke forming unit comprises an air inlet cover, a fan and a smoke flow guide cover which are connected in sequence; the air inlet cover is provided with a smoke storage tank; the smoke flow guide cover comprises an upper flow guide cover and a lower flow guide cover, a flow guide grating surface is arranged on the smoke outlet of the flow guide cover, and the flow guide grating surface comprises a plurality of vertically and spaced flow guide gratings; flow guide columns are arranged in the upper flow guide cover and the lower flow guide cover, and the closed surfaces of the two flow guide columns form smoke outlet annular bands with the inner sides of the upper flow guide cover and the lower flow guide cover respectively; the light curtain belt forming unit comprises a mounting frame, a plurality of aspheric lenses and a plurality of LED light sources, the mounting frame is hollow, and the plurality of aspheric lenses and the plurality of LED light sources are arranged opposite to the two sides of the mounting frame respectively. The application can form a smoke curtain belt with uniform laminar flow, and can form a more eye-catching flexible blocking effect in combination with the light curtain belt.

The invention provides a digital twin emergency evacuation method and system for a highway tunnel. The method comprises the steps that S1, multi-source fire data of multiple positions in the tunnel are collected at fixed time intervals; s2, constructing a temperature field model, and calculating the thermal strain of each position based on the multi-source fire data; s3, constructing a structural field model, generating local stress of each position according to the thermal strain, then correcting temperature field model parameters by using the local stress, and then repeating the steps S2 to S3 until the local stress does not change any more; s4, constructing a smoke flow field model, calculating the fire source power of each position according to the multi-source fire data, and calculating the smoke flow diffusion rate of each position by using the smoke flow field model according to the fire source power; and S5, generating an optimal personnel evacuation scheme according to the smoke flow diffusion rate and the local stress of each position. According to the method, the problems that in the prior art, prediction of the fire development situation by using a static model is inaccurate, and accurate support cannot be provided for emergency decision making are solved.

The utility model provides an efficient condensation type fuel gas volumetric water heater, and relates to the technical field of water heaters, the efficient condensation type fuel gas volumetric water heater comprises a shell, a condensation cover is arranged in the shell, an inner container barrel is arranged in an inner cavity of the condensation cover, and an upper cover seal head and a lower cover seal head are fixedly arranged at the two open ends of the inner container barrel respectively; an annular smoke channel is formed between the outer side wall of the inner container barrel and the inner side wall of the condensation cover, a first communicating smoke cavity is formed between the outer wall of the upper cover end socket and the inner wall of the upper portion of the condensation cover, and a second communicating smoke cavity is formed between the outer wall of the lower cover end socket and the inner wall of the lower portion of the condensation cover. Smoke sequentially flows through the main heat exchange smoke pipe, the third communicating smoke cavity, the secondary heat exchange smoke pipe, the first communicating smoke cavity, the annular smoke channel, the second communicating smoke cavity and the condensation smoke exhaust pipe connector, high-temperature smoke flows through the smoke pipe in the inner container and completely wraps the inner container, and therefore the heat exchange efficiency is improved.

The application provides a range hood, and relates to the technical field of kitchen appliances. The range hood comprises a main machine box, a fan and a flow guide piece. The fan is arranged in the main machine box, and the fan has a fan inlet. The flow guide piece is arranged in the main machine box, one end of the flow guide piece is connected with the fan, and a pre-rotation fan is arranged in the flow guide piece, and the pre-rotation fan is used for pre-straightening smoke flowing into the flow guide piece. In this way, the range hood has smaller noise and higher smoke exhaust efficiency.

The utility model discloses an energy-gathering plate pot rack and a gas cooker, and belongs to the technical field of kitchen appliances. The energy-gathering disc pot rack comprises an energy-gathering disc body and a support, the support is arranged on the energy-gathering disc body, and an L-shaped high-temperature smoke flow guide channel is formed between the bottom of the support and the inner side wall of the energy-gathering disc body and between the outer side wall of the support and the inner side wall of the energy-gathering disc body. The L-shaped high-temperature flue gas flow guide channel can conduct layered flow guide on combustion high-temperature flue gas in the energy gathering disc body, one part flows from the upper end of the support, the other part flows from the lower end of the support and flows upwards from the horizontal direction to the vertical direction along the L-shaped high-temperature flue gas flow guide channel, and meanwhile the high-temperature flue gas flowing at the upper end of the support is impacted to form turbulent flow. Therefore, the flow rate of high-temperature flue gas in the energy-gathering disc pot rack is delayed, the heat exchange time of the high-temperature flue gas and the pot bottom is prolonged, meanwhile, the impact strength of the high-temperature flue gas to the pot bottom is improved, the heat exchange effect of the high-temperature flue gas and the pot bottom is enhanced, and the combustion heat efficiency of the gas stove is improved.

The application provides a heater air inlet and exhaust device for a travel vehicle, and belongs to the field of travel vehicle heater accessories. The device comprises a nested exhaust pipe, an air inlet pipe, a positioning frame and a cover. An annular fixing plate is arranged between the exhaust pipe and the air inlet pipe, a first baffle is arranged in the inner cavity of the exhaust pipe, the first baffle is connected with a second baffle, the inside of the cover is divided into upper and lower areas by means of the above structure, the smoke flow space and the air inlet flow space are distinguished, and smoke backflow is effectively prevented. The side wall of the cover is provided with a louvered second smoke outlet, the bottom end is provided with a second air inlet, the bottom end of the air inlet pipe is provided with a first air inlet, and the two air inlets are communicated to form an air inlet passage. The air inlet pipe and the cover jointly form an annular drainage groove, which can timely drain the water accumulated in the exhaust pipe. The device only needs to be opened at a single position of the vehicle body, has the functions of preventing smoke backflow, preheating air inlet, automatically sucking air inlet by smoke negative pressure, collecting and discharging condensate water, has a compact structure and stable operation, and is suitable for various travel vehicle parking heaters.

The utility model belongs to the field of blast furnace equipment, and relates to a blast furnace gas heating system which comprises a valve of a blast furnace gas pipeline, a cyclone dust collector, a flowmeter, a thermometer, a valve of a flue gas pipeline and a heat exchanger, and a heating gas source is taken from flue gas of a hot blast stove. The system is arranged between a blast furnace gravity dust collector and dry dust collection and serves as a bypass of a normal gas pipeline. When the blast furnace gas is low in temperature and needs to be heated, the flue gas adjusting valve on the hot blast stove flue gas pipeline is opened, high-temperature hot blast stove flue gas enters the heat exchanger, meanwhile, the gas adjusting valve on the heating system pipeline is opened, and the blast furnace gas flows through the heated heat exchanger after passing through the cyclone dust collector, so that the blast furnace gas is heated and then flows to the dry dedusting system. Heated hot-blast stove smoke flows back to the hot-blast stove waste gas pipeline and is discharged through a chimney. Blast furnace gas is heated through hot blast stove flue gas, low-temperature gas is prevented from directly entering a dry-method system, cloth bag hardening is prevented, normal work of the dry-method system is ensured, and the operation stability of a blast furnace system is improved.

The utility model relates to the field of integrated cooker, specifically disclose a kind of exhaust pipe connecting head for integrated cooker, the flue of reverse T shape is formed in joint main body, the top of joint main body forms upper interface, the left and right sides of joint main body are equipped with the side interface of connectable exhaust pipe;It further includes detachably connected the cover of one side interface, cover is located in flue and connects guide block one side, guide block other side forms the guide surface that oil smoke is guided to another side interface, guide surface is curved into arc from top to bottom, arc surface is close to upper interface below, the bottom of joint main body is concave and forms oil receiving groove, oil receiving groove is equipped with oil discharge hole, and oil discharge hole is connected with oil outlet valve. Two side interfaces can be connected with exhaust pipe, increase the smoke exhaust volume;One side interface can be selected to be connected, cover closes another side interface, facilitates changing smoke direction in later period, guide block and guide surface guide the oil smoke flowing to cover to exhaust smoke;Oil groove collects oil dirt, and is discharged through oil discharge joint.

The invention relates to the technical field of range hoods, in particular to a smoke sensing assembly for a range hood, the range hood and an integrated cooker, and aims to solve the problem that an existing smoke sensing module is poor in installation universality. The smoke sensing assembly provided by the invention comprises a smoke sensing module used for detecting smoke flowing through the smoke sensing module; the connecting pieces comprise the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece are connected in a pivoted mode through a pivot shaft, the smoke sensing module is connected to the first connecting piece, a first connecting point is arranged at the position, away from the pivot shaft, of the first connecting piece, and a second connecting point is arranged at the position, away from the pivot shaft, of the second connecting piece; the smoke sensing assembly can be connected to a smoke sensing installation position of the range hood through the first connection point and the second connection point. According to the smoke sensing assembly provided by the invention, the structure of the smoke sensing assembly can be adjusted according to the installation point position of the smoke sensing installation position so as to adapt to the installation point position, the universality of the smoke sensing assembly is improved, and modular installation is facilitated.

The invention provides a fire-fighting emergency management system and a fire prediction method, and the method comprises the steps: carrying out the fire monitoring of a target region, and collecting a fire image of the target region; performing region segmentation on the fire image to obtain a plurality of flame regions of the target region, determining a concentration gradient of smoke in each flame region based on color distribution of the smoke in each flame region, and determining smoke spreading characteristics in the target region according to the concentration gradients of all the smoke; acquiring fire environment data in the fire occurrence process of the target area, and determining a heat transfer relationship generated when smoke flows in the target area based on the fire evolution model in combination with the fire environment data; the thermal runaway state of the fire is predicted through the heat transfer relation and the smoke spreading characteristics, and then the confidence fire situation in the target area is obtained; and the fire alarm sends a fire alarm to the fire-fighting command center based on the confidence fire situation in the target area. By adopting the scheme of the invention, confidence early warning of fire-fighting fire diffusion can be realized in a complex fire scene.

The invention provides a stainless steel bright annealing horizontal furnace and a using method, the stainless steel bright annealing horizontal furnace comprises a furnace body, a preheating muffle and a heating muffle, the preheating muffle and the heating muffle are arranged in the furnace body at intervals along the moving direction of strip steel, carbon sleeve rollers are arranged in the preheating muffle and the heating muffle, furnace shells are arranged outside the preheating muffle and the heating muffle, the preheating muffle is of a double-layer furnace pipe structure, and the heating muffle is of a single-layer furnace pipe structure. A smoke outlet is formed in the side, close to the furnace end, of the double-layer furnace pipe, the double-layer furnace pipe is communicated with a smoke exhaust fan outside the furnace body through a smoke exhaust pipeline, the smoke flowing direction is opposite to the strip steel moving direction, through structural optimization, smoke is fully used for preheating the strip steel, fuel is saved, the production cost is reduced, meanwhile, smoke is discharged smoothly, and the reasonable working furnace pressure of the furnace body is guaranteed.

The range hood comprises a range hood body, the range hood body is provided with an air suction panel and a smoke collecting cavity, the air suction panel is provided with an air suction opening communicated with the smoke collecting cavity, the lower edge of the air suction opening extends into the smoke collecting cavity to form a baffle plate, and the baffle plate is obliquely arranged backwards from bottom to top. The upper edge of the baffle plate is not lower than the upper edge of the air suction opening, and an effective air suction opening is formed by a gap between the upper edge of the baffle plate and the upper edge of the air suction opening. The baffle plate can block the sight of a user and prevent the user from directly seeing the back plate of the smoke collecting cavity through the exhaust inlet, so that the visual impression of the user on the range hood is prevented from being influenced. Due to the fact that the baffle plate is obliquely arranged backwards from bottom to top, a gap between the upper edge of the baffle plate and the upper edge of the air suction opening forms an effective air suction opening, oil smoke flows into the air suction opening, is covered on the baffle plate and then can continuously flow into the smoke collecting cavity upwards through the effective air suction opening, and therefore the baffle plate can be prevented from influencing the process that the oil smoke flows into the smoke collecting cavity. And the lampblack suction effect of the range hood is ensured.

This utility model discloses a baffle switch structure for a cylindrical range hood, comprising: a range hood body, an air inlet at the bottom of the range hood body and a flat panel light assembly located below the air inlet, the projected area of ​​the flat panel light assembly along the direction of gas intake completely covering the air inlet, the range hood body having an outer shell portion located on the periphery of the flat panel light assembly, and an annular air intake gap connected to the air inlet being defined between the outer shell portion and the flat panel light assembly. In this range hood structure, the flat panel light assembly is located at the bottom of the range hood body opposite the air inlet. When negative pressure suction is generated inside the range hood body, some of the smoke flows upward and contacts the lower surface of the flat panel light assembly before flowing towards the air intake gap, while some smoke directly enters the air intake gap and is thus sucked away through the air inlet. The flat panel light assembly serves both as a baffle for the range hood and as a lighting fixture; the flat panel light assembly can be designed with a large area, which is beneficial for widening the illumination range and achieving the function of large-area lighting.

The utility model discloses a finned tube type heat exchanger for a hot galvanizing line, which comprises a shell, a smoke inlet and a smoke outlet are respectively arranged at two ends of the shell, and a plurality of air ducts arranged side by side are arranged between the smoke inlet and the smoke outlet. A plurality of fin heat exchange tube sets are arranged in the air flue at intervals in the smoke flowing direction, each fin heat exchange tube set is provided with a cold side inlet and a cold side outlet, all heat exchange tubes of the fin heat exchange tube sets are fixed to an upper tube plate and a lower tube plate, the heat exchange tubes are connected through U-shaped elbows, and the fin heat exchange tube sets share the upper tube plate and the lower tube plate. A plurality of fin heat exchange tube groups are inserted into the air duct from top to bottom; the upper tube plate is connected with an equipment flange on the shell through a gasket and a fastener; an expansion joint and an electric air valve are sequentially arranged at the air duct inlet in the smoke flowing direction, and the opening degree of the electric air valve is determined according to the smoke outlet temperature. The heat exchanger is convenient for ash removal, overhaul and maintenance, and solves the problem that the performance of the heat exchanger is reduced due to smoke side dust blockage.

The utility model provides a kind of smoke hood and have its range hood, belong to kitchen appliance technical field, the smoke hood is connected in the front opening of smoke machine shell, it includes two guide grooves and two air inlets, the cavity of the smoke cavity is recessed to the inside of smoke machine shell, the longitudinal section of the smoke cavity is triangle, and the smoke cavity includes rear side wall;Two guide grooves are formed by the recess of rear side wall to the inside of smoke machine shell respectively, the slot bottom of each guide groove is equipped with air inlet, wherein, the flow area of guide groove is continuously tapered structure along the smoke flow direction, and at least one slot wall of guide groove forms inclined flow guide surface, to guide flow to air inlet with smoke.The utility model can produce downward pressure in the upper portion of air inlet, when oil fume produces rising, can lock more oil fume, reduce the escape of oil fume;Enhance the flow guide to smoke, improve the effect of smoking, reach the purpose of quickly sucking away oil fume and reducing noise.

The invention discloses a ternary double-visible harm-reducing microsphere composite filter stick and a cigarette, and belongs to the technical field of tobacco products, the ternary double-visible harm-reducing microsphere composite filter stick comprises a first filter section close to the cigarette, a middle cavity section and a second filter section at an inlet end, the outer sides of the first filtering section, the middle cavity section and the second filtering section at the inlet end are coated with molding paper; a first flue gas flow channel is formed in the first filtering section in the flue gas flowing direction; spherical structural parts are arranged in the cavity sections, and a plurality of hole-shaped structures are arranged on the surfaces of the spherical structural parts. And a second flue gas flow channel is arranged in the second filtering section along the flue gas flow direction. The filter stick is arranged to be of a multi-section composite structure, flue gas is subjected to multi-section filtration, and the harm reduction microspheres are arranged in the filter stick, so that efficient filtration for reducing tar and harm of the flue gas is realized; moreover, the porous structure of the microspheres can bear moisture and other moisturizing molecules and help balance the humidity of smoke, so that the smoke is not dry any more when entering the mouth, stimulation to the oral cavity is reduced, and the smoking experience is improved.

The utility model discloses a high air pressure range hood with an air duct provided with an anti-backflow structure, which belongs to the technical field of range hoods and comprises a range hood shell, the front side of the range hood shell is an inclined plane, a switch touch screen interface is arranged above the front side of the range hood shell, a case is arranged on the rear side of the range hood shell, and the case is provided with an anti-backflow structure. An air duct body is connected and mounted above the case, an automatic door is arranged on the front side of the range hood shell, an oil fume filter tank is arranged below the front side of the range hood shell, a fan shell is arranged in the case, an exhaust fan is arranged in the fan shell, and a three-phase direct-current brushless motor is connected and mounted on a filter element on the right side of the exhaust fan; according to the high-air-pressure range hood with the air duct provided with the anti-backflow structure, the problem that the cooking environment is affected due to the fact that oil smoke flows backwards easily in an existing range hood is solved, the high-air-pressure range hood is suitable for various kitchen environments, and a fresh cooking space is provided for a user.

The invention discloses a waste incineration waste heat boiler efficient circulating system and a control method thereof, and relates to the technical field of waste incineration treatment. The device comprises a steam pocket; a lower header; a downcomer mother pipe; the high-temperature through-flow type furnace water pump is fixedly mounted on the downcomer mother pipe; a water cooled wall; a frequency converter; the monitoring unit comprises a first flow sensor, a temperature sensor and a second flow sensor; and a controller. According to the efficient circulating system of the waste incineration waste heat boiler, the water vapor circulating speed in the water cooling wall can be increased, uneven local heating of the water cooling wall and vaporization overheating of working media in the pipelines are avoided, it is guaranteed that the flow of all the pipelines of the water cooling wall is uniform, thermal stress is reduced, and the temperature deviation of the water cooling wall is reduced; in the starting or load changing stage, sufficient water power is provided, water circulation stagnation is prevented, the influence of non-uniform flue gas flow field can be counteracted, the problem of heat exchange dead points is solved, scaling corrosion is restrained, and the advantages of being efficient, stable, economical and long in service life are achieved.

The present application relates to the technical field of physiotherapy device, and specifically relates to a multifunctional intelligent fire dragon jar device, which comprises a jar body, a lotus-shaped jar opening is fixedly connected to the bottom of the jar body, a temperature acquisition assembly is arranged on the inner side wall of the jar opening, and the temperature acquisition assembly is signal-connected with a control system; a shelf plate is fixedly connected to the top of the jar body, a fixing piece is fixedly connected to the bottom of the shelf plate, a smoke flow guiding assembly is arranged on the top of the shelf plate, and a smoke collecting pipe is integrally formed on the top of the jar body; a purification assembly is arranged on the outside of the jar body, and the purification assembly is responsible for purifying and discharging the flowing collected smoke; an operation indication assembly is assembled on the top of the smoke collecting pipe; the present application integrates the real-time temperature detection of the jar opening, the guiding, collecting, regulating and controlling of the smoke body, the purification, filtering and discharging of the smoke body in the process of using the fire dragon jar by the operator on the intelligent fire dragon jar, and optimizes the design in view of the defect that the temperature is difficult to regulate in the process of the conventional fire dragon jar.

This invention provides a multi-puff electronic cigarette cartridge and an electronic cigarette system used in conjunction with the cartridge. The cartridge includes a cartridge shell (9) and a cartridge bottom cover (5). The bottom cover (5) has a vertically penetrating atomizing carrier cavity (51) in the middle, and the atomizing carrier cavity (51) houses the oil-storing heating component. The oil-storing heating component includes a magnetic heating element (6) and an electronic cigarette atomizing carrier (7) fitted together. The magnetic heating element (6) is at least partially hollowed out in a tubular shape, and at least part of the material of the magnetic heating element (6) is metal. The middle part has a smoke flow channel (61) arranged along the length direction. Electronic cigarette atomizing agents are adsorbed in the electronic cigarette atomizing carrier (7). The cartridge of this invention sets the magnetic heating element and the electronic cigarette atomizing carrier together and installs them in the bottom cover, which has the characteristics of simple structure and easy manufacturing.

The utility model discloses a horizontal steam generator which comprises a lower collecting unit, a water cooling unit and an upper collecting unit, the upper end of the lower collecting unit is communicated with the water cooling unit, the upper end of the water cooling unit is communicated with the upper collecting unit, and the upper end of the upper collecting unit is connected with a steam collecting box; compared with the prior art, due to the arrangement of the lower collection unit, the water cooling unit and the upper collection unit, water can be combusted and heated through the combustion cavity, the heated water can form steam, the steam is collected into the steam collection box and finally discharged through the steam discharge pipe, and the sealing heat preservation unit is used for heat preservation. According to the utility model, the heating device can not only well seal and preserve heat of a heated main body, but also enable the heated main body to form a good smoke flow channel, so that waste heat of high-temperature smoke generated after combustion can be effectively utilized, the temperature of exhausted smoke is effectively reduced, fuel energy is saved, and the evaporation capacity of steam can be greatly improved in a limited space; and the steam output efficiency is improved.

The invention discloses an assembled smoke inhalation injury experiment device, and relates to the technical field of medical experiment equipment. Comprising a combustion tank main body, a fixed base is arranged at the lower end of the combustion tank main body, an air guide cover is arranged at the upper end of the combustion tank main body, smoke guide pipes are evenly arranged on the two sides of the air guide cover, anti-leakage structures are arranged in the smoke guide pipes, and mounting bases are arranged on the two sides of the combustion tank main body; a connecting structure is arranged between the experiment box and the combustion tank body, the combustion tank body and the experiment box are made of transparent materials, so that experimenters can clearly observe internal combustion and smoke flowing conditions, experiment data can be conveniently monitored and recorded in real time, fuel can be stably combusted through the design of the combustion base, and the combustion efficiency is improved. The igniter provides a convenient ignition mode, it is ensured that the experiment can be started rapidly, the oxygen content in the combustion tank can be adjusted through the arrangement of the oxygen inlet pipe, and therefore combustion conditions in different environments can be simulated.

This application discloses a cooling composite filter rod and a heated cigarette. The cooling composite filter rod includes a first forming paper and a filter element wrapped inside the first forming paper. The filter element includes a support section, a filter section, and a hollow section arranged sequentially. The filter element also includes isolation paper. Isolation paper is respectively arranged between the support section and the filter section, and between the filter section and the hollow section. Both ends of the filter section pass through the corresponding isolation paper and are connected to it to allow smoke to pass through. A gap is formed between the filter section and the first forming paper. Multiple first vent holes are formed on the first forming paper at positions corresponding to the filter section. Second vent holes are formed on the isolation paper between the filter section and the hollow section so that airflow passes through the first vent holes and the second vent holes and enters the hollow section, mixing with the smoke flowing out of the filter section. This cooling composite filter rod can significantly reduce the smoke temperature at the inlet end and the surface temperature of the composite filter rod.