10results about How to "Improve smoke extraction efficiency" patented technology

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 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 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.

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 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.