28results about How to "Improve smoke extraction efficiency" patented technology

The application discloses a wind blade adjustable non-powered air cap and a flue gas waste heat recovery system constructed by the same. The non-powered air cap comprises an air cap body, a lifting mechanism and a pressure sensor. The air cap body comprises a cap top, a bottom ring and a group of wind blades closely arranged between the cap top and the bottom ring. The pressure sensor is arranged on the inner wall of the cap top. The upper end of the wind blade is located above the cap top, and the end slightly exceeds the outer edge of the cap top. The number of the lifting mechanism corresponds to the number of the wind blades, and the lifting mechanism is annularly distributed on the cap top and comprises a lifting plate. The two ends of the lifting plate are respectively provided with an electric push rod and a lifting shaft. The electric push rod is fixed to the inner wall of the cap top, and the lifting shaft is connected with the wind blade. The electric push rod and the pressure sensor are electrically connected with a control box. When the pressure sensor detects that the pressure in the air cap is too large, the lifting mechanism works, the height of the wind blade is lifted, the opening of the wind blade is increased, and thus the exhaust capacity of the air cap is increased and the exhaust efficiency is improved.

The utility model relates to the technical field of microwave vertical high-temperature furnaces, and discloses a microwave vertical high-temperature furnace with a smoke exhaust structure, which comprises a high-temperature furnace main body. According to the microwave vertical high-temperature furnace with the smoke exhaust structure, the sleeve is arranged outside the smoke exhaust pipe, the high-temperature-resistant centrifugal fan is arranged in the sleeve, smoke and waste gas generated in the furnace cavity can be actively and rapidly exhausted, and compared with a traditional top natural smoke exhaust mode, the smoke exhaust efficiency is effectively improved; the problems that the air pressure in the furnace is unstable and microwave elements are damaged due to waste gas retention are effectively avoided, meanwhile, the high-temperature-resistant ceramic coating and the spiral flow guide protrusions on the inner wall of the smoke exhaust pipe can resist high-temperature corrosion and guide airflow to flow smoothly, and the smoke exhaust efficiency is further improved; and the left clamping plate and the right clamping plate are pulled to be separated from the positioning circular ring, at the moment, the sleeve can be pulled to be detached from the smoke exhaust pipe, the high-temperature-resistant centrifugal fan can be conveniently overhauled, and the practicability of the device is improved.

The utility model discloses a high-temperature smoke exhaust retaining fan device for fire fighting, which relates to the technical field of fire fighting equipment and comprises a support seat, a cooling mechanism and a smoke suction mechanism, a smoke exhaust pipe is fixedly connected onto the support seat in a penetrating manner, and a smoke exhaust fan is fixedly mounted at one end of the smoke exhaust pipe. The cooling mechanism comprises a water storage tank fixedly connected to the outer wall of the top of the supporting base, a snakelike heat conduction copper pipe arranged in the water storage tank, a refrigerator, a temperature sensor, a stirring assembly and a controller fixedly installed on the outer wall of the front side of the water storage tank, wherein the refrigerator and the temperature sensor are sequentially and fixedly installed on the inner wall of one side of the water storage tank. According to the smoke exhaust device, high-temperature smoke can be fully cooled in the smoke exhaust process, adverse effects of high-temperature factors on the performance of the fan are avoided, and the smoke exhaust efficiency can be guaranteed; and the smoke exhaust fan is provided with the retention filtering assembly, so that the smoke exhaust fan has an effective retention function, harmful substances in smoke can be effectively intercepted, and the situation of secondary pollution is avoided.

The utility model relates to the technical field of electric kilns, in particular to an electric kiln with an annular flue, which comprises a kiln body and a first filter bin, a second filter bin is fixedly mounted on the surface of the upper end of the first filter bin, an inner shell is fixedly mounted in the kiln body, and a kiln door is connected to the position, close to the surface of the front end, in the kiln body through a hinge. A plurality of electric heating wires are installed at the bottom end in the kiln body, a placing plate is fixedly connected to the position, close to the bottom, of the inner wall of the kiln body, the multiple smoke suction heads are arranged and distributed in the kiln body, smoke distributed on the upper portion, the lower portion and the middle portion in the kiln body can be rapidly and comprehensively sucked and exhausted, and the smoke exhaust efficiency is improved; by arranging the spraying mechanism, the spraying range of the flue gas is expanded, the flue gas in the second filtering bin can be uniformly sprayed, the filtering effect and efficiency are improved, sprayed water can be recycled, and water resources are saved.

The utility model relates to the technical field of beveling equipment, in particular to a beveling cutting smoke exhaust system and a beveling cutting robot, a smoke suction pipeline is divided into at least one smoke suction area, and a partition opening and closing mechanism is arranged on the smoke suction area, so that cutting smoke in different areas can be exhausted. And meanwhile, a water curtain treatment mechanism is additionally arranged to absorb and precipitate smoke dust generated by cutting, so that the smoke dust exhaust efficiency is improved, the smoke exhaust energy consumption is reduced, and the influence of the smoke dust on the cutting environment and the health of workers is reduced.

The utility model discloses an exhaust device of a range hood. The exhaust device comprises an exhaust fume collecting hood, an air inlet duct and an exhaust duct, a purification box is fixedly connected to the front side of the exhaust fume collecting hood, a filter screen is inserted into the purification box, sliding blocks are fixedly connected to the two sides of the filter screen, a handle is fixedly connected to the top of the filter screen, a guide plate is fixedly connected to the interior of the exhaust fume collecting hood, an air inlet duct is fixedly connected to the tail of the exhaust fume collecting hood, the air inlet duct is a gradually-shrinking air duct and gradually shrinks from an opening of the exhaust fume collecting hood, and a fan is fixedly connected to the tail end of the air inlet duct. The top of the draught fan is fixedly connected with a power source, the top of the power source is fixedly connected with a supporting rod, the top of the supporting rod is fixedly connected with a solar panel, and the exhaust duct is fixedly connected to the other end of the draught fan. The rotating speed of the draught fan can be automatically adjusted according to the oil smoke concentration, the smoke exhaust efficiency is improved, and the air flow resistance and the air noise are reduced through the gradually-shrinking and gradually-expanding design of the air inlet duct and the air exhaust duct.

The utility model relates to moxa -burning box technical field discloses a moxa -burning box smoke discharging device for traditional chinese medical nursing, including slide rail and skid assembly, the skid assembly horizontal sliding on the slide rail still include smoke pipe adapter box, transition box, smoke exhaust hood, longitudinal smoke exhaust pipe, transverse smoke exhaust pipe and straight pipe, smoke pipe adapter box is connected with transverse smoke exhaust pipe, the bottom of transverse smoke exhaust pipe smoke pipe adapter box is connected with longitudinal smoke exhaust pipe, longitudinal smoke exhaust pipe is connected with transition box, the bottom of transition box is fixedly connected with straight pipe, straight pipe is integrally connected with smoke exhaust hood, the lifting ring is connected with mountain climbing buckle, and mountain climbing buckle hangs in the below of skid assembly, and skid assembly moves horizontally along the slide rail, and skid assembly drives the bottom smoke exhaust hood and sends into different area. The utility model can move the smoke exhaust hood to the specific area that needs to exhaust smoke, and the smoke is collected accurately, and then is discharged through longitudinal and transverse smoke exhaust pipe, effectively avoids the smoke diffusion in the room, improves the exhaust efficiency and effect.

The invention discloses an energy-saving charcoal fire barbecue oven with a multi-section temperature control function. Comprising a barbecue oven; the barbecue oven is composed of an oven body and a smoke extraction mechanism, the bottom end of the oven body is installed at the bottom end of the support, a containing plate is installed at the position, located at the bottom end of the oven body, of the upper end of the support, an air inlet is formed in the front end of the oven body, an air inlet adjusting mechanism is installed at the position, corresponding to the air inlet, of the upper side of the oven body, and a collecting mechanism is slidably installed below the rear end of the oven body. A grating is installed in the middle of the interior of the oven body, a plurality of carbon boxes are arranged side by side at the upper end of the grating in the oven body, and barbecue grids are arranged at the upper end of the oven body corresponding to the upper ends of the carbon boxes. According to the multi-carbon-box design, charcoal fire segmented control is achieved, the carbon boxes can be flexibly started according to the number of food materials and barbecue requirements, charcoal fire waste is reduced, and the energy-saving effect is achieved; the air inlet adjusting mechanism accurately controls air, so that sufficient combustion of charcoal fire and stable fire behavior are guaranteed; the smoke extraction mechanism is high in smoke extraction efficiency, and the barbecue environment is improved; the collecting mechanism is convenient to clean, and use experience is improved.

The invention relates to an underwater tunnel transverse smoke exhaust adjusting device and method for intervening the smoke flow state, the device comprises two passing lanes arranged in an underwater tunnel, an emergency evacuation corridor and a smoke exhaust pipeline, one side of each passing lane is provided with a plurality of smoke exhaust ports communicated with the smoke exhaust pipeline, and the interiors of the smoke exhaust ports are connected with smoke exhaust adjusting assemblies through fastening connecting assemblies; a short blade valve plate driven by a driving motor I is rotationally arranged in a mounting frame I in the smoke exhaust adjusting assembly, a long blade valve plate driven by a driving motor II is rotationally arranged in a mounting frame II, and the short blade valve plate is perpendicular to the long blade valve plate; cooperative adjustment of a smoke layer downward inclination angle controlled by a long-blade valve plate and a smoke steering angle controlled by a short-blade valve plate intervenes in smoke flow power behavior; according to the tunnel transverse smoke exhaust adjusting device, through the limiting conditions of the downward inclination angle and the steering angle, based on the relation between pressure and speed distribution and smoke amount distribution, the resistance coefficient and the like, the opening degrees of long and short valve plates in all smoke exhaust ports are obtained, dynamic regulation and control are achieved, and the smoke exhaust effect is improved.

The utility model relates to fire engineering equipment technical field especially, and more particularly to a fire engineering smoke exhaust device, technical scheme: a fire engineering smoke exhaust device, including smoke exhaust device support bottom plate, adjusting assembly, smoke suction subassembly, connecting pipe, processing box, fixed base, activated carbon filter plate, air deflector, flow guide groove, second mounting support, flow guide air baffle, installation groove and collection box, the top surface of smoke exhaust device support bottom plate is provided with adjusting assembly, the top of adjusting assembly is provided with smoke suction subassembly, one side of smoke suction subassembly is provided with connecting pipe, one side of connecting pipe is provided with processing box, the utility model discloses through multilayer filtration and spiral flow guide technology has improved the thoroughness of smoke purification significantly, ensures that the discharge gas meets environmental protection standard, secondly, the combination of flow guide air baffle and spiral air duct optimizes the airflow path, reduces energy loss, makes the smoke exhaust process more efficient, effectively improves the purification effect and smoke exhaust efficiency of fire engineering smoke exhaust.

The utility model relates to the technical field of oven, put forward a kind of domestic oil fume prevention oven, it include: barbecue oven and collection top, the collection top is located barbecue oven top, the side of barbecue oven is provided with front plate, the below of barbecue oven is provided with rotating sleeve, and the barbecue oven is rotatably connected with front plate by rotating sleeve;The below of collection top is provided with rear plate, the outer wall of rear plate is provided with hinge, and the rear plate is connected with collection top by hinge.The setting of collection top can collect smoke in time when barbecue oven is used, avoid smoke tank around diffusion, and completely cover the top of barbecue oven, make the collection of smoke more efficient, and the setting of rotating sleeve and hinge can fold equipment, so that the space occupied by equipment is smaller when storing, the chimney is added, so that smoke can be quickly discharged, improve the efficiency of smoke exhaust, and the setting of anti-infiltration top effectively avoids smoke backflow.

The utility model discloses a kind of graphitization furnace subsection type uniform smoke exhaust device, including the smoke exhaust hood consisting of framework and cover plate, the end of smoke exhaust hood is equipped with end sealing plate, and is divided into left segment smoke exhaust hood and right segment smoke exhaust hood independent of each other;Every segment smoke exhaust hood middle part is equipped with independent smoke exhaust main pipe, smoke exhaust main pipe is communicated with two segment smoke exhaust pipes symmetrical left and right, multiple equidistantly arranged wedge-shaped slit mouths are set in the bottom of smoke exhaust pipe, and the slit height gradually increases from the end close to smoke exhaust main pipe to the direction away from it. Significantly improve the far end negative pressure uniformity of super-long graphitization furnace;Smoke exhaust main pipe is connected with underground flue through reducing pipe and forms no connecting piece snap structure, realizes the quick hoisting and sealing of smoke exhaust hood. The utility model solves the problem of smoke emission and poor airflow organization in the prior art, ensures uniform smoke exhaust of graphitization furnace, improves smoke exhaust efficiency, and protects production environment and safety.

The utility model relates to the technical field of building fire protection and smoke exhaust, in particular to an automatic smoke exhaust device for building fire protection engineering, which comprises a smoke exhaust pipeline and a smoke exhaust fan, and the smoke exhaust fan is mounted in the smoke exhaust pipeline. When the filter plate filters dense smoke, a hydraulic air cylinder is started and drives a connecting block to move downwards, a fixing frame and the connecting block are fixed through cooperation of a bolt and a nut, and a compression spring provides reverse acting force so that the right end face of a brush assembly can be continuously attached to the left end face of the filter plate; the connecting block drives the fixing frame and the brush assembly to integrally move downwards, so that the brush assembly effectively removes particulate matter accumulated on the filter plate and keeps the filter plate in a dredging state, dense smoke can be continuously discharged in time, the overall smoke discharging efficiency is improved, and meanwhile fire fighting work can be smoothly carried out.

This utility model provides a check valve installation mechanism and a flue sealing mechanism, belonging to the field of flue sealing, to solve the problem of oil fumes seeping into the user's room through gaps such as the valve body edge and the connection with the wall; it includes a first fixing member with a square first receiving groove; a first elastic sealing member disposed in the first receiving groove; a second fixing member with a through hole, the side wall of the through hole being bent towards the wall to form a square limiting part, which is used to insert into the first receiving groove; and a second elastic sealing member disposed on the side wall of the second fixing member facing the wall, for abutting against the wall; through the action of the first elastic sealing member and the second elastic sealing member, gaps between the second fixing member and the wall caused by protrusions or grooves on the installation wall, as well as gaps at the connection between the first fixing member and the second fixing member caused by protrusions or grooves, can be effectively avoided, ensuring that a seal can be achieved.

The utility model relates to the technical field of industrial factory building fire fighting and smoke discharging, in particular to a smoke discharging skylight which comprises a skylight body frame, a window sash is arranged at the top of the skylight body frame, one end of the window sash is rotationally connected with the skylight body frame, and a window opener is fixed to the portion, below the window sash, of the skylight body frame. The output end of the window opener is connected with the window sash; a purification bin is arranged on the window frame at the lower end of the window sash; the purification bin comprises an exhaust fan which is arranged on one side of the window body frame; the air inlet is formed in the window frame on the other side of the exhaust fan; one end of the purification air duct is connected with the air inlet, and the other end is connected with the exhaust fan; and a filtering assembly, a light-oxygen catalytic purification assembly and an adsorption assembly are arranged in the purification air duct. According to the smoke exhaust skylight, the dual functions of fire-fighting smoke exhaust and air purification are achieved, and the practicability and functionality of the smoke exhaust equipment of the industrial factory building are improved.

This invention discloses an intelligent underground space smoke extraction system, comprising: a mechanical smoke extraction device including a smoke extraction window with an adjustable opening; a natural smoke extraction device including a smoke extraction fan with an adjustable fan speed; a sensing module including a sensor device for real-time monitoring of environmental parameters within the underground space; an identification module for determining a smoke distribution matrix based on the coordinate parameters of the sensor device and the environmental parameters; and a control module for dynamically adjusting the fan speed of the smoke extraction fan and the opening of the smoke extraction window based on the smoke distribution matrix, data from the mechanical smoke extraction device, and data from the natural smoke extraction device, thereby reducing mutual interference between the natural and mechanical smoke extraction devices.

The utility model provides a new -type check valve relates to the flue check valve technical field. The check valve includes the valve body and the rotation cover plate that is connected in the valve body, still includes: the inclined plate, the inclined plate is fixedly connected in the valve body in the inclination, the high end of the inclined plate is close to the air inlet side of valve body and sets up, the top edge rotation cover plate is connected in the exhaust side of the inclined plate of the inclination, and is used for the conduction or the plugging of the inclined plate, the counterweight, the counterweight is installed on the top edge of the rotation cover plate, when the plugging state, the counterweight and the gravity center of the rotation cover plate are close to the exhaust side of the top edge of the rotation cover plate respectively, when the complete conduction state, the counterweight and the gravity center of the rotation cover plate are along the ventilation direction setting respectively. The application can long guarantee the leakproofness, and effectively improve the exhaust efficiency.

This invention relates to the field of residential ventilation and air purification technology, specifically to a ventilation system and control method for preventing kitchen fumes from escaping across spaces. The system includes a main exhaust system for a range hood and a double-layered air curtain above the kitchen doorway. The double-layered airflow forms a stable isolation barrier, preventing fumes from spreading into the living room. The air curtain employs a purely mechanical thermodynamic response structure, utilizing the thermal deformation of a bimetallic strip to drive the displacement of internal partition plates, adaptively adjusting the airflow volume and outlet angle of the two airflow paths, eliminating the need for an electronic control unit. When cooking is stopped, the air curtain evenly directs air downwards, blocking residual fumes; during cooking, it automatically increases the airflow volume on the living room side, enhancing the isolation effect. Coupled with the range hood, it increases the positive pressure at the doorway, improving the efficiency of fume capture and emission, and is adaptable to both closed and open kitchens, as well as open kitchen scenarios. This invention can significantly reduce PM2.5 concentration in the living room, effectively suppressing the cross-space escape of fumes, and has advantages such as simple structure, safety and reliability, low cost, and maintenance-free operation.

The utility model discloses a lifting type smoke exhaust window for an underground building, which comprises a smoke exhaust channel, a smoke exhaust window, a fire extinguishing system, a smoke exhaust window and a smoke exhaust window, and is characterized in that a smoke inlet of the smoke exhaust channel is communicated with the fire extinguishing system; the skylight is arranged at a smoke outlet of the smoke exhaust channel; and the jacking assembly is arranged in the smoke exhaust channel, is connected with the skylight and is used for enabling the top of the skylight to be consistent with the ground in elevation when no fire occurs. The skylight is simple in structure, the top of the skylight is consistent with the ground in elevation, so that the skylight does not need to protrude out of the ground, the occupancy rate of underground space is reduced, the available space is increased to the maximum extent, the visual abrupt sense is eliminated, the integrity and uniformity of buildings and urban landscapes are enhanced, and the environmental attractiveness is improved; when a fire disaster occurs, the skylight can be quickly jacked to form a high-position smoke exhaust channel, and the smoke exhaust efficiency and safety are greatly improved.

This utility model relates to a flue fireproof backflow preventer, comprising a valve body, a valve plate, and a hinge mechanism, as well as a valve plate locking mechanism. The valve plate locking mechanism includes a hinge seat, a locking element, a fusible link, and a limiting element. The hinge seat is mounted on the valve body. One end of the locking element is hinged to the hinge seat via a locking torsion spring. The locking element has a through hole, through which the free end of the fusible link passes and connects to the limiting element. The fusible link includes a first fusible link and a second fusible link. The limiting element is mounted on the first fusible link, and the second fusible link is connected to the hinge seat. The valve body has a positioning hole for the hinge seat or the second fusible link to extend. This utility model has a simple structure and is easy to operate. It can meet the requirements of normal kitchen ventilation and exhaust of smoke to the public flue, prevent the backflow of high-temperature smoke in the public flue, and prevent high-temperature smoke from entering the public flue during a kitchen fire. It can effectively prevent the spread of fire, giving this flue fireproof backflow preventer high fire resistance and wider application.

A multifunctional smoke exhaust window includes a support, a window frame mounted on the front of the support, and a window sash mounted on the front of the window frame. Two symmetrical vertical tracks are installed on the front of the support, and the window frame is slidably connected to the outside of the vertical tracks. This invention integrates sliding and rotating adjustment modes. By sliding the window frame along the vertical tracks, the opening area can be flexibly adjusted from 0% to 100%. Simultaneously, through the cooperation of a first hinge plate, a second hinge plate, a first rotating latch, and a second rotating latch, the upward and downward angles of the window sash can be adjusted within the range of 0° to 60°. This effectively solves the shortcomings of traditional sliding smoke exhaust windows (which cannot adjust angle) and rotating smoke exhaust windows (which have limited opening area). It simultaneously meets the dual requirements of "maximum ventilation area" and "complete sealing," eliminating the need for additional smoke exhaust window types and reducing installation costs and space occupation.

This invention relates to a roof ventilation and smoke extraction system with intelligent linkage control and adaptive adjustment functions, belonging to the field of building ventilation and smoke extraction technology. The system includes a roof skylight array, smoke extraction fan units, a multi-source sensor network, and an edge computing controller. The edge computing controller incorporates a pattern recognition module, a linkage control module, an adaptive adjustment module, and a zone scheduling module. In fire-fighting smoke extraction mode, the linkage control module dynamically calculates the optimal opening sequence of each smoke extraction skylight and the optimal speed sequence of each smoke extraction fan based on the spatial distribution of smoke concentration and temperature, ensuring coordinated matching between skylight opening and fan speed. In daily ventilation mode, the adaptive adjustment module uses a predictive control algorithm to dynamically adjust the equipment's operating status. This invention achieves integrated intelligent management of daily ventilation and fire-fighting smoke extraction through deep linkage control, intelligent pattern recognition, and zone adaptive scheduling, improving smoke extraction efficiency by more than 30% and significantly reducing energy consumption.

The invention discloses a control method, device and equipment of a multi-equipment kitchen linkage system and a medium. The multi-equipment kitchen linkage system comprises kitchen air conditioning equipment, at least two sets of range hood equipment and at least two sets of kitchen range equipment, and the range hood equipment and the kitchen range equipment are arranged in a one-to-one correspondence mode; the control method comprises the following steps: firstly, acquiring oil smoke concentration data at an air inlet of each range hood device, and cookware temperature data and kitchen environment data corresponding to each cooker device, and then according to at least one of the oil smoke concentration data at the air inlet of each range hood device, the cookware temperature data corresponding to each cooker device and the kitchen environment data, determining the cooking fume concentration of each range hood device; and cooperatively controlling the oil smoke suction mode of each range hood device and the air supply mode of the kitchen air conditioner device. According to the method, the problems that in the current kitchen environment, information barriers exist among multiple devices such as a range hood, a kitchen range and a kitchen air conditioner, and global optimization cooperative control cannot be carried out under the safety risks of cooking scenes, gas leakage and the like are solved, so that the systematicness and three-dimensional response capacity of the multiple devices is achieved.

This invention discloses a combined cycle waste heat boiler with a bend-type dual-channel system and method. The waste heat boiler includes a flue gas channel and a steam channel arranged in parallel with opposite working fluid flow directions. The flue gas channel connects to the flue gas working fluid source, and the steam channel connects to the steam turbine unit and the steam working fluid source. A heat exchanger is provided between the flue gas channel and the steam channel. In this invention, by setting inlet areas, bend area one, and bend area two in both the flue gas channel and the steam channel, the residence time of flue gas and steam within the channels is extended, and sufficient heat exchange is achieved through the heat exchanger. Simultaneously, the pressure difference between bend area one and the inlet area and bend area two drives the flue gas working fluid to flow along the flue gas channel, not only preventing flue gas backflow but also improving exhaust efficiency. By arranging superheaters and reheaters, as well as adjustable louvered air vents, in channels one and two respectively, the working fluid flow rate can be adjusted to prevent overheating.

This utility model relates to the field of subway engineering technology, specifically disclosing a built-in smoke exhaust fan room based on a subway entrance / exit pipe jacking shaft. It includes an entrance / exit pipe jacking channel, a launching shaft, a receiving shaft, and a built-in smoke exhaust fan room. The two ends of the entrance / exit pipe jacking channel are connected to the launching shaft and the receiving shaft, respectively. An underground smoke exhaust fan room is formed inside the launching shaft. The smoke exhaust fan room includes a smoke exhaust fan, a mezzanine slab, and a launching shaft top slab. The mezzanine slab has a first smoke exhaust hole and a table-shaped frame structural column. A fan foundation and a second smoke exhaust hole are provided on the table-shaped frame structural plate supported by the table-shaped frame structural column to support the smoke exhaust fan. The launching shaft top slab has a third smoke exhaust hole and a ground smoke exhaust hole well. Smoke exhaust ducts pass through each smoke exhaust hole, connecting the ground, the smoke exhaust fan, and the entrance / exit channel. The smoke exhaust fan room is centrally located relative to the entrance / exit channel. This utility model uses pipe jacking for underground excavation to avoid open-cut excavation, makes full use of abandoned shafts, avoids resource waste, improves smoke exhaust efficiency, saves investment, and optimizes the urban landscape.

The utility model relates to the technical field of range hood, and disclose a kind of self-adapting flue wind pressure range hood, including smoke collection box;Smoke pipe, the smoke pipe fixed communication is in smoke collection box top;Filter screen, the filter screen is set in smoke collection box bottom;Fan, the fan is fixedly connected in smoke pipe inside;Control chip, the control chip is fixedly connected in smoke pipe inner wall;Wind pressure sensor, the wind pressure sensor is fixedly connected in smoke pipe inner wall, the wind pressure sensor is connected with control chip, the fan is connected with control chip;Through the collaborative work of wind pressure sensor and control chip, fan, flue wind pressure can be monitored in real time and automatically adjust air volume, effectively solve the problem that the smoke is not smooth, oil fume backflow etc. caused by excessive flue wind pressure during public flue peak period, compared with traditional fixed air volume range hood, significantly improve the smoke exhaust efficiency and stability, provide better kitchen smoke exhaust experience for user.

The utility model relates to kitchen appliance accessories technical field discloses humidity detection device and cooking equipment, humidity detection device includes casing, humidity transducer and filter assembly, casing cover is established in the ventilation hole outside the cooking cavity of cooking equipment, be equipped with air outlet on the casing, humidity transducer installs in the casing, is used for detecting the humidity information of the gas that is discharged from the ventilation hole, filter assembly rotatably sets up at air outlet, has the closing position of the air outlet is shielded, and the exhaust position that opens the air outlet, the utility model filter assembly is in the closing position, slows down the circulation of the inside and outside air of casing, makes the humidity of the inside of casing improve, enhances the accuracy of humidity measurement of humidity transducer, when not needing carrying out humidity measurement, filter assembly rotates to the exhaust position, and the air outlet can be fully opened, can discharge the oil fume rapidly smoothly, improves the exhaust efficiency, effectively gives consideration to the double needs of humidity measurement and oil fume discharge.

The utility model relates to the technical field of smoke exhaust air pipes with better smoke exhaust effect, and discloses a smoke exhaust air pipe with better smoke exhaust effect, which comprises a main body mechanism and a fixing mechanism, the fixing mechanism is fixedly arranged in the main body mechanism, the main body mechanism comprises a smoke exhaust air pipe body, a frame and a shell, a frame is fixedly installed on the smoke exhaust air pipe body, and a shell is fixedly installed on the outer surface of the smoke exhaust air pipe body. The structural strength is enhanced, the smoke exhaust stability is guaranteed, and the strength of the air pipe connecting position is improved through cooperation of the rectangular sleeve on the inner wall of the smoke exhaust air pipe body and the reinforcing rod. After the reinforcing rod of the top air pipe is inserted into the rectangular sleeve of the bottom air pipe, the smoke exhaust air pipe can be effectively prevented from being blown off under severe conditions such as strong wind, the integrity and stability of a smoke exhaust channel are ensured, smoke can be smoothly exhausted, meanwhile, the service life of the air pipe is prolonged, and the maintenance or replacement cost caused by structural damage is reduced.