226 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 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 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 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 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 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 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 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 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.

The invention relates to the technical field of launchers, in particular to a handheld bird repelling bomb launcher which comprises a launch cavity body and a launch tube arranged at the front end of the launch cavity body. The transmitting tube is connected with the bearing guide tube body, and silencing groove bodies are arranged on the side wall of the bearing guide tube body at equal intervals; the outer side wall of the bearing guide pipe body is further sleeved with a loading pipe fitting. An auxiliary mechanism for absorbing and purifying noise and smoke is mainly formed by a bearing guide pipe body, a sound absorption pipe body and a loading pipe fitting. The sound absorption pipe body and the loading pipe fitting are supported by the bearing guide pipe body; in other words, generated noise and smoke are absorbed and purified through cooperative use of the sound absorption pipe body and the auxiliary assembly; on the basis, the sound absorption pipe body absorbs generated noise for the first time, and smoke and leaked noise penetrate through the smoke circulation holes in the sound absorption pipe body and then pass through the smoke absorption purification cotton balls arranged on the inner side of the loading strip to absorb the noise for the second time and purify the smoke.

To provide a sensor capable of expanding a range where a sound pressure can be secured to a fixed value or more.SOLUTION: The detector includes a housing having a tubular side surface part in which an opening part through which smoke flows in is formed, a fire detecting part provided in the housing and configured to detect smoke or heat, a speaker provided in the housing and configured to generate a sound in response to detection of smoke or heat by the fire detecting part, and a first space that is a passage from the opening part to the fire detecting part and a second space in which the speaker is provided. And a plate-shaped partition member provided in the housing, in which an opening is formed in the partition member, the housing is configured such that a sound wave of the speaker emitted from the second space to the first space through the opening propagates toward the opening, the housing has a flat plate-shaped facing surface portion facing the partition member, and the facing surface portion has a reflecting surface that faces a portion of the partition member where the opening is formed and reflects the sound wave to propagate the sound wave to the opening.SELECTED DRAWING: Figure 1

The application provides a smoking device, a smoke cartridge, a smoking body and a preparation method. The preparation method of the smoking body comprises the following steps: preparing a wire body; wherein the wire body contains a smoking medium; and connecting a plurality of wire bodies in a circumferential direction to form a smoking body. The preparation method of the smoking body provided in the application can form a stable and predictable smoke passage between adjacent wire bodies by designing a wire body structure that is in contact with each other and extends in a predetermined direction, thereby stabilizing the smoke flow and improving the smoking effect.

The utility model discloses a range hood which comprises an exhaust fume collecting hood and a top exhaust fume inlet, and an exhaust fume collecting cavity with an opening in the bottom surface is formed in the exhaust fume collecting hood; on the oil smoke flowing path, the top smoke inlet is located outside the smoke collecting cavity and located on the downstream of the whole smoke collecting cavity. Compared with the prior art, the range hood has the advantages that due to the arrangement of the smoke inlet, oil smoke can have enough buffer space, the oil smoke is buffered in the smoke collecting cavity so as to reduce turbulent flow, and then the oil smoke smoothly reaches the top smoke inlet after flowing out from the rear side of the smoke collecting cavity, so that the oil smoke suction effect is improved.

The utility model relates to the technical field of waste gas treatment, in particular to a carbon flue gas multi-pollutant collaborative treatment device, which is characterized in that a side rod is arranged on one side of a purification tank, a plurality of empty slots are formed in the purification tank, a plurality of positioning blocks connected with the purification tank are arranged on the side rod, and the positioning blocks are respectively positioned on two sides of the empty slots; an annular frame is arranged in the empty groove, a filter plate is arranged in the annular frame, a side block is arranged on one side of the annular frame, a first motor is arranged at the top of the purification tank, a first rotating shaft connected with the side block is arranged at the output end of the first motor, and a flow sensor is in butt joint with an electric signal of a second motor. The heat exchange process can be adjusted in real time according to the smoke flow, and accurate control is achieved. Under different flow working conditions, smoke waste heat can be fully recycled, the energy utilization rate is increased, resource waste is reduced, the production cost of an enterprise is reduced, and the environment-friendly requirements of energy conservation and emission reduction are met.

The utility model belongs to the technical field of water heating devices, and discloses a condensation type gas volumetric water heating device which is mainly used for solving the problem that an existing gas volumetric water heating device is low in heat exchange efficiency. An upper combustion type combustion mode is adopted, hot smoke generated by combustion of the combustion unit firstly flows to the bottom of the water storage tank from the upper portion of the water storage tank through the main heat exchange pipe to achieve primary heat exchange, and then flows to the upper portion of the water storage tank from the bottom of the water storage tank through the circulating heat exchange pipe and enters the smoke flow dividing chamber to achieve secondary heat exchange. The flue gas with waste heat flows to the lower part of the water storage tank from the upper part of the water storage tank through the flue gas condensation pipe again and enters the flue gas condensation chamber to realize heat exchange again, and at the moment, the flue gas subjected to heat exchange is finally discharged through the flue gas discharge pipeline; according to the utility model, three heat exchange processes can be realized, so that hot smoke generated by combustion and water in the water storage tank are fully subjected to heat exchange, the heat exchange efficiency is improved, the heat loss can be reduced, and the resource waste is reduced.

The invention relates to the technical field of latent heat recovery water purification devices, and discloses a heat pump circulating condensation latent heat recovery type high-power energy-saving water purification device, which solves the problem that the existing heat pump is inconvenient to recover latent heat and condensate water, and comprises a heat pump circulating system and a condensate water purification system, the condensate water purification system is connected with the heat pump circulation system, and the heat pump circulation system is composed of a compressor, a heat exchanger, a liquid storage tank, a filter, an expansion valve, an evaporator, a shell, a smoke flow guide pipe, a water vapor flow guide pipe, a condensate water discharge pipe and a dryer. The condensate water purification system is composed of a box body, a water collection tank, a water supply pipe, a particulate matter filtering assembly, an acid-base neutralization filtering assembly, a temporary storage tank, a water pump, a membrane filter, an activated carbon filtering assembly and a purified water discharge pipe; by means of the device, latent heat in boiler flue gas can be recycled, and meanwhile condensate water can be recycled and purified.

The utility model relates to desulfurizing tower technical field discloses a kind of wet flue gas desulfurization tower, including tower body, desulfurization component and be used for the spray of the spray component to desulfurization component, tower body is equipped with air inlet and air outlet, desulfurization component is arranged in tower body, desulfurization component includes sieve plate and multiple baffle, the outer periphery of sieve plate is connected with the inner wall of tower body, multiple baffle is spacedly installed at the top of sieve plate, form pass-through smoke channel between adjacent two baffle, baffle is corrugated plate, two side walls of pass-through smoke channel respectively are equipped with a group of baffle, two groups of baffle in pass-through smoke channel are staggered arrangement in the direction of smoke flow, pass-through smoke channel is filled with filler;The utility model cooperates through serpentine pass-through smoke channel and baffle, reduce the flow speed of flue gas and treatment solution, prolong residence time, to improve the reaction length of flue gas and treatment solution, improve desulfurization efficiency.

The invention discloses a flue gas flow velocity measurement system and method based on asymmetric arrangement of three-dimensional pitot tubes, and belongs to the technical field of flow velocity measurement. The method comprises the steps that multiple sets of three-dimensional pitot tubes are adopted to form a measurement array, the measurement array is divided into a center layer, a transition layer and a wall face layer in the radial direction, and probes of all the layers are arranged at intervals in the circumferential direction and arranged front and back in the axial direction; each probe is internally provided with a temperature sensor and a flue gas extraction opening, and the flue gas density can be periodically and automatically corrected; the average flow velocity of the fluid is obtained through weighted averaging of data collected by all the probes, backflow in a complex flow field is recognized in combination with a neural network algorithm and a machine learning algorithm, and simple prediction of the flow velocity and the flow direction of the fluid is achieved. According to the invention, the problems of insufficient precision and poor adaptability of traditional symmetrically arranged pitot tubes in complex flow field measurement are solved.