253 results about "Natural ventilation" patented technology

The invention discloses a multi-modal fusion exhibition building tall atrium natural ventilation evaluation method. The method comprises the steps that multi-modal data are obtained, wherein the multi-modal data comprise meteorological time sequence parameters, building three-dimensional point cloud and opening geometric parameters and air conditioner cooling parameters; inputting the multi-modal data into a multi-modal fusion neural network model to obtain a natural ventilation evaluation result, the natural ventilation evaluation result comprising vertical temperature distribution of the atrium and the ventilation quantity of each opening of the atrium; wherein the multi-modal fusion neural network model comprises a meteorological time sequence feature extraction module, a building geometric coding module, an air conditioning system parameter coding module, a cross-modal feature fusion module, a vertical temperature field prediction module and a ventilation quantity prediction module. According to the method, a space-time cooperative sensing mechanism of meteorological time sequence dynamic, building space topology and air conditioner parameter features is established, and the technical bottleneck of a traditional method in the aspects of cross-modal feature space alignment and interaction efficiency is broken through.

The present invention relates to the technical field of natural ventilation in buildings, and in particular to a computationally assisted decision-making method and system for climate-adaptive building cavity design. The method comprises: using a Delaunay triangulation method to generate an initial mesh, using a Laplace operator-based mesh refinement method to adaptively refine the initial mesh, so as to obtain an adaptive mesh system, wherein the adaptive mesh system is used for dynamically adjusting the mesh density of conditional PINNs; constructing a multi-task learning framework within the conditional PINNs, wherein the multi-task learning framework is used for jointly predicting a plurality of physical field variables within the conditional PINNs; and iteratively training the conditional PINNs, and using a gradient descent algorithm to minimize a loss function until a predetermined number of training iterations or loss convergence is reached, thereby generating a key physical field variable prediction model in building cavity design. The present invention can implement efficient and accurate prediction of key physical quantities in building cavity design, and can be adapted to different building layouts and functional space characteristics.

The invention provides a backpressure adjusting method and device for a natural ventilation direct air cooling system, and the method comprises the steps: obtaining the current backpressure of a steam turbine, and executing an up-cut step sequence when the current backpressure is greater than a set backpressure first preset difference value, and the up-cut step sequence comprises the steps: setting a first target sector as a new commissioning sector, and setting a second target sector as a second commissioning sector; the control mode of the shutter opening degree of the new commissioning sector is set to be automatic adjustment within the first preset opening degree range; when the current back pressure is smaller than a second preset difference value of the set back pressure, a down-cut step sequence is executed, and the down-cut step sequence comprises the step that the control mode of the shutter of the second target sector is automatically adjusted in the first preset opening degree range from the second preset opening degree range to the second preset opening degree range till the second target sector quits operation. By controlling the automatic switching of the sectors and the automatic adjustment of the opening degree of the shutter, the automatic adjustment of the back pressure is realized, the automation degree of the back pressure adjustment is improved, the precision and efficiency of the back pressure adjustment are further improved, and the efficiency of the generator set is improved.

The utility model belongs to the field of building photovoltaic technology, and relates to a photovoltaic ventilation enclosure structure system based on evaporative cooling, which comprises a building outer enclosure structure surface, a photovoltaic panel and a ventilation cavity, the ventilation cavity is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively provided with shutters capable of being controlled to be opened and closed; a heat conduction or heat exchange device is arranged between the shady face of the photovoltaic panel and the outer wall of the ventilation cavity, and the surface of the building outer envelope structure and the photovoltaic panel are located on the two opposite sides of the ventilation cavity respectively. The passive evaporative cooling mode is clean, pollution-free, energy-saving, carbon-reducing, remarkable in cooling effect and economical; the mode of combining natural ventilation with evaporative cooling is adopted, the cooling effect is more obvious, meanwhile, the hot and humid environment of a building envelope structure can be regulated and controlled, and cold and hot load energy of a building is reduced.

The energy-saving curtain wall structure with the ventilation function comprises a curtain wall body, the inner side of the middle of the curtain wall body is hollow and sealed, ventilation grooves are formed in the upper side and the lower side of the curtain wall body, and shutters are arranged in the ventilation grooves; the louver comprises a plurality of rotating shafts rotationally arranged on the inner sides of the ventilation grooves and louver blades arranged on the outer sides of the rotating shafts; grooves are formed in the side edges of the upper side and the lower side of the curtain wall body correspondingly, the ends of the rotating shafts in the corresponding ventilation grooves penetrate into the grooves, and gears are fixedly arranged at the ends of the rotating shafts. According to the curtain wall, through pure mechanical linkage of the memory alloy spring, the rack, the gear and the rotating shaft, the blind window can be automatically opened and closed along with the room temperature, a motor, a sensor or manual intervention is not needed, manual operation is thoroughly eliminated, the response speed only depends on physical phase change of the memory alloy, and the automation level is remarkably improved. The hollow sealed curtain wall main body and the upper and lower ventilation slots form a chimney effect channel which is linked with the shutters to amplify the natural ventilation efficiency.

The invention discloses a natural ventilation cooling tower and a dumbbell-shaped concrete filled steel tube cross strut thereof, the dumbbell-shaped concrete filled steel tube cross strut comprises four dumbbell-shaped steel tube limb columns and cross nodes, and the end parts of the dumbbell-shaped steel tube limb columns are connected with the cross nodes to form a cross structure; the cross joint comprises a vertical stiffening plate, an upper reinforcing ring, a lower reinforcing ring, a plurality of joint sleeves and a plurality of joint webs, the upper reinforcing ring and the lower reinforcing ring are perpendicularly crossed with the vertical stiffening plate, the joint webs are connected with the joint sleeves, and the joint sleeves, the joint webs, the upper reinforcing ring and the lower reinforcing ring form a dumbbell-shaped structure with the vertical stiffening plate as the central axis. Open holes are formed in the reinforcing rings and used for pouring and circulation of concrete, the four dumbbell-shaped steel pipe limb columns are arranged at the open holes of the upper reinforcing ring and the lower reinforcing ring, and a closed space is formed by the joint sleeve, the joint web, the upper reinforcing ring, the lower reinforcing ring and the four dumbbell-shaped steel pipe limb columns. The problem of material waste caused by rich in-plane directional bearing capacity of a circular section can be solved.

The invention discloses a natural draft cooling tower and a lattice type concrete filled steel tube cross strut thereof, the lattice type concrete filled steel tube cross strut comprises four lattice columns and cross nodes, the end parts of the lattice columns are on the same plane and are connected with the cross nodes to form an X-shaped structure, and each lattice column comprises a concrete filled steel tube column limb and a web member for connecting the adjacent concrete filled steel tube column limbs; the cross joint comprises two joint branch assemblies and a joint belly assembly connected with the two joint branch assemblies, and each joint branch assembly comprises a joint panel, a first covering panel and a second covering panel, wherein the first covering panel and the second covering panel cover the joint panel. The joint face plate comprises a joint top plate, a joint bottom plate, a joint stiffening plate and a reinforcing ring plate, the joint stiffening plate and the reinforcing ring plate are arranged between the joint top plate and the joint bottom plate, and open holes are formed in the joint top plate, the joint bottom plate and the reinforcing ring plate and used for concrete pouring and circulation. And the four latticed columns are arranged at the holes of the node top plates and the node bottom plates of the two node branch assemblies. The use amount of strut steel and concrete is reduced, and the construction speed and the construction quality are improved.

The invention relates to the technical field of power supply cabinets, and discloses an integrated micro-station power supply cabinet which comprises a cabinet body, a core component loading cabin is arranged in an inner cavity of the cabinet body, and two cooling mechanisms and two self-locking cabin doors are symmetrically arranged on the upper side and the lower side of the core component loading cabin. The cooling mechanism is in transmission connection with the left side and the right side of the self-sealing cabin door through a cross guide frame. The crossed guide frame is in axial sliding fit with a sliding rail which is rigidly connected with the inner side wall of the cabinet body; intelligent switching between natural ventilation and forced heat dissipation is achieved through the cross guiding system. In the natural ventilation mode, the unfolding mechanism forms an airflow channel to achieve passive heat dissipation. When the temperature exceeds the limit, the mechanism shrinks to form a sealed cavity, and double-channel forced cooling is started; according to the design, precise and controllable conversion between energy conservation and efficient heat dissipation is achieved.

The invention discloses a natural ventilation and mechanical ventilation interconvertible road tunnel ventilation system, which is arranged in a one-way driving road tunnel and comprises a tunnel road natural ventilation facility and a tunnel road mechanical ventilation facility, the tunnel road natural ventilation facility comprises a natural ventilation duct, a natural ventilation shaft and a natural ventilation valve; the tunnel road mechanical ventilation facility comprises a mechanical ventilation duct, a mechanical ventilation shaft, a mechanical ventilation valve and a ventilator. A natural ventilation opening of the one-way driving road tunnel is sequentially connected with a natural ventilation valve and a natural ventilation shaft through an air duct. The natural ventilation duct between the natural ventilation valve and the natural ventilation opening is sequentially connected with a tunnel mechanical ventilation valve, a ventilator and a mechanical ventilation shaft through a tee joint; the road tunnel mechanical ventilation valve and the ventilator are in a chain opening and closing relation. The invention provides a tunnel ventilation system which not only can meet the tunnel ventilation requirement, but also can solve the problems of land acquisition, landscape, environment and the like.

The invention discloses a multi-shaft ultra-long high-ground-temperature railway tunnel fan optimization configuration method which comprises the following steps: acquiring basic calculation parameters of a multi-shaft ultra-long railway tunnel, and further establishing a physical model; based on the physical model, establishing a multi-shaft super-long railway tunnel surrounding rock-lining-airflow-ventilation network heat, humidity and flow coupling mathematical model, and performing rapid solving; on the basis of a mathematical equation solving result of the mathematical model, the feasibility of temperature control and humidity control under the working condition of only natural ventilation is judged, for the working condition that only natural ventilation is not feasible, a ventilation fan decision-making variable is selected, and optimization design is conducted on fan configuration with ventilation energy consumption as the target and the maximum temperature and humidity along the way as the constraint; according to the method, optimization of the fan configuration scheme under the multi-factor working condition is achieved.

The invention relates to the technical field of air purification equipment, in particular to an unpowered public place air directional flow purification structure. The problems that in the prior art, the natural ventilation principle and the multi-stage purification function cannot be fused on the structural design level, and consequently inherent defects exist in the aspects of energy consumption, noise, maintenance cost, airflow organization stability and the like are solved. The unpowered public place air directional flow purification structure is arranged on a wall unit and comprises a micropore physical pre-filtering structure, a multi-layer labyrinth type physical filtering structure and an adsorption / deposition structure which are integrally arranged in a closed mounting cavity in the wall unit. In the operation process of the structure, no fan or motor or external power supply is needed in the whole process, air circulation is driven by completely depending on the thermal characteristics of the wall and weak thermal buoyancy formed by an indoor environment heat source, no mechanical moving part exists in the operation process, the noise level is low, and the noiseless requirement of a hospital ward area at night is met.

The invention belongs to the technical field of cable bridges, and particularly relates to a cable bridge for wiring of an intelligent power grid, which comprises a bridge main body, and the bridge main body comprises a hoisting main frame and a supporting cross beam fixed on the inner side of the hoisting main frame; the heat dissipation mechanism is arranged on one side of the bridge main body; the invention aims to solve the problems that an existing suspension type cable bridge is hoisted at a use position during use and is usually directly bound in the bridge by adopting a binding band and the like, the temperature is too high due to heat accumulation caused by concentrated binding, and the heat dissipation effect is poor, the vibration resistance is poor and the clamping is unstable due to the adoption of natural ventilation; according to the invention, the bridge main body and the clamping mechanism are designed, the clamping mechanism is installed through the supporting cross beam, the cable is supported in an auxiliary manner through the cooperation of the installation clamping frame and the supporting seat, and ventilation and heat dissipation can be ensured through separated installation during installation and use, and the clamping arms are driven to rotate through the downward pressing of the clamping pressing columns. And the clamping arm is enabled to clamp the cable and press the clamping claw to clamp the cable, so that the stability is ensured.

The invention relates to a transformer cooling device based on natural resources and a using method thereof.The transformer cooling device comprises a tunnel communicated with a transformer room, the middle section of the tunnel is located underground, the underground temperature of the tunnel is lower than the external temperature, a first draught fan is installed in the tunnel, and the output end of the first draught fan is communicated with the transformer room; and the input end of the first fan is communicated with outside air. According to the transformer cooling device based on the natural resources and the using method of the transformer cooling device, the problem that in the prior art, the transformer cooling effect is poor by adopting a natural ventilation mode in high-temperature weather is solved.

The utility model discloses a built-in ventilation device of a comprehensive distribution box, which comprises a housing, the housing is provided with a natural ventilation area and a forced ventilation area, the natural ventilation area is provided with natural ventilation holes arranged in an array, and the forced ventilation area is provided with an axial flow fan. The ventilation effect and the ventilation quantity are improved.

A windproof system for a natural draft vehicle-mounted water heater includes components such as a panel, base frame, hot water tank, fume hood assembly, isolation baffle, gas ejector assembly pipe, pressure regulating valve assembly, and sealing strips. When the vehicle is in motion or in windy conditions, the system directs airflow through the sealed assembly of the panel and base frame. Simultaneously, the fume hood assembly diverts and regulates the airflow, and the isolation baffle acts as a flow barrier, ultimately achieving pressure balance between the U-shaped air inlet and outlet of the hot water tank, ensuring the water heater remains in normal combustion mode. This design offers advantages such as good windproof performance, relatively independent air intake and exhaust, and minimal impact of the combustion process on electrical components and non-high-temperature resistant parts.

The utility model relates to the technical field of poultry house double-layer protective ceilings, and discloses a naturally ventilated Taihe black-bone chicken stocking poultry house double-layer protective ceiling structure which comprises a frame and a top-layer ceiling, a linkage adjusting mechanism is arranged on the left side of the top-layer ceiling, and the linkage adjusting mechanism comprises a rotating shaft, a gear, a connecting sliding block, a rack and a limiting rod. And the outer surface of the rotating shaft is rotationally connected with the inner wall of the top-layer shed roof. According to the naturally-ventilated double-layer protective ceiling structure of the Taihe black-bone chicken stocking poultry house, through the use of the rotating shafts, the bearing blocks and the direction adjusting plates, the angle of the direction adjusting plates can be adjusted and changed according to reality, the effect of convenient adjustment is achieved, the structure can be used according to different requirements, and then the problem of how to control the ventilation angle is solved; the effect of changing the ventilation direction according to the actual environment can be achieved, weather interference in the breeding process is avoided, and more efficient breeding operation is facilitated.

The utility model belongs to building curtain wall technical field especially can adjust indoor temperature's building curtain wall, including stand, be provided with crossbeam on stand, crossbeam outside is provided with inner layer glass, one side of inner layer glass is provided with outer layer glass, outer layer glass outside is provided with decoration buckle, forms hollow layer between outer layer glass, inner layer glass, top ventilation opening includes mounting frame, vane, sealing frame, connecting shaft and disc spring. The utility model discloses through inner layer glass, outer layer glass, hollow layer, top ventilation opening, vane, bottom ventilation opening, realizes the temperature control of building indoor through outside natural ventilation and seasonal mode switching, avoids the structure of intelligentization, reaches indoor temperature control effect on the basis of low cost, easy maintenance, turns over the vane in top ventilation opening, bottom ventilation opening, and the flowing air from bottom ventilation opening enters hollow layer and flows, and the heat in hollow layer is taken away from top ventilation opening, guarantees the cool feeling of indoor.

The utility model discloses an outdoor build treatment place fast cut formula ventilation device, specifically related to indoor ventilation technical field, including installation frame and air pipe, the bottom end of air pipe is through installation frame and is with its through bearing swing joint, and the bottom swing of air pipe is provided with fan, and the inside fixed connection of installation frame has support plate, is provided with mobile assembly on support plate, and mobile assembly includes second stepper motor, screw rod, slide and moving plate, and second stepper motor fixed mounting is in the inside one side of installation frame. The utility model discloses through fan work produces suction, extracts the air in treatment place, and indoor air is discharged through air scoop, and second stepper motor works and drives fan and standpipe horizontal movement, and make fan and standpipe away from air pipe, and external air can enter air pipe through air scoop, and finally through installation frame into treatment place, simple operation can be switched to natural ventilation and mechanical ventilation quickly.

The invention relates to the technical field of building physics and artificial intelligence crossing, and discloses a traditional village dwelling thermal performance prediction system based on deep learning, comprising a data acquisition module for acquiring solar radiation, wind speed and direction, internal and external pressure difference and indoor and outdoor temperature; the radiation decoupling network module is used for predicting the net radiation heat flux of the outer surface according to the solar radiation, the sun position and the component posture; the microclimate permeation network module is used for predicting a convective heat transfer regulation factor according to the pressure difference, the wind and the opening state; the implicit state network module adopts a circulation structure and introduces an implicit thermal state vector to represent the thermal inertia of the enclosure structure; and an indoor thermal environment integration module that integrates the convective heat flux based on the heat balance and outputs an indoor air temperature predicted value. According to the system, through decoupling modeling of radiation, permeation and heat transfer of the enclosure structure, prediction interpretability of the indoor thermal environment of a traditional dwelling is improved, and the system is suitable for building scenes which are built with non-standard materials such as rammed earth and depend on natural ventilation.

The utility model belongs to the technical field of building facades, and discloses a building energy-saving facade structure which comprises a building facade and a ventilation window, a ventilation groove is formed in the side wall of the building facade, the ventilation window is hinged to the side wall of the building facade, a groove is formed in the side wall of the building facade, and a fixing ring is installed in the groove. A ventilation window is arranged on the outer vertical face of the building, a groove is formed in the outer vertical face of the building, a rotating rod is rotatably installed in the fixing ring, one end of a connecting plate is installed on the side wall of the rotating rod, the other end of the connecting plate is installed on the upper wall of the ventilation window, and a shielding mechanism is installed on the inner side wall of the groove. And meanwhile, a shielding mechanism is further arranged in the groove, and the internal fixing ring, the rotating rod and other structures can be shielded through the shielding mechanism, so that external rainwater and the like are prevented from entering, and the situation that opening of the ventilation window is affected due to corrosion is avoided.

1 ABSTRACT: The present invention relates to a construction block system featuring a water tank module and controlled airflow. The system is designed to allow natural ventilation through an air intake system, with air entering via a channel that is separate from the blocks themselves. A vent located before the fan is used to control airflow based on the season. During summer, the vent is open to allow airflow through the water channels, while in winter it closes to prevent heat loss. ABSTRACT: The present invention relates to a construction block system featuring a water tank module and controlled airflow. The system is designed to allow natural ventilation through an air intake system, with air entering via a channel that is separate from the blocks themselves. A vent located before the fan is used to control airflow based on the season. During summer, the vent is open to allow airflow through the water channels, while in winter it closes to prevent heat loss. 1 20 25 23 06 71 09 S ep 2 02 5 2 0 2 5 2 3 0 6 7 1 0 9 2 0 2 5 S e p

This invention discloses an intelligent ventilation and control system for hazardous waste containers, relating to the fields of ventilation systems and control technology. It aims to solve the technical problems of traditional hazardous waste container ventilation systems, such as low ventilation efficiency, high energy consumption, inability to dynamically adjust ventilation volume according to the hazardous waste status, and the tendency to lead to the accumulation of harmful gases or resource waste. The system includes: a container monitoring module, located inside and outside the container, for collecting environmental parameters; an intelligent ventilation execution module, used to coordinate with the ventilation and natural ventilation openings to adjust the ventilation state inside the container; a linkage control center, used to process monitoring data and generate control commands; and an energy supply unit, providing power to all modules of the system. This invention, through a dynamic strategy of "natural ventilation priority + mechanical ventilation assistance," accurately matches the ventilation needs of different hazardous wastes, solving the core problem of existing systems' inability to dynamically adjust according to the characteristics of hazardous waste and the real-time environment.

The invention discloses a mushroom greenhouse sunshading, ventilating and humidifying comprehensive cooling system, and relates to the technical field of cooling tracks, the mushroom greenhouse sunshading, ventilating and humidifying comprehensive cooling system comprises an outer sunshading module, a ventilating module and a humidifying module, and is characterized in that the outer sunshading module comprises a steel frame structure and sunshading net cloth, the steel frame structure covers the top and the side face of a greenhouse, and the ventilating module is arranged on the side face of the greenhouse; the sunshade screen cloth is fixed on the steel frame structure; through comprehensive utilization of the synergistic effect of sunshade, ventilation and humidification, the cooling efficiency is improved compared with that of a traditional mode, the greenhouse temperature can be stably controlled within the mushroom suitable range, through air flow formed through the top ventilation opening and uniform humidification are matched, the temperature difference and the humidity difference in the greenhouse become small, the uniformity of the mushroom growth environment is improved, and the mushroom yield is improved. The outer sunshade steel frame is calculated by adopting the shortest length, so that consumables are reduced; natural ventilation is mainly adopted, energy consumption is reduced, and the method is suitable for large-scale mushroom planting popularization.

The invention provides an allergy risk prediction method and device based on indoor physical environment simulation and electronic equipment, and relates to the technical field of medical health data analysis, and the method comprises the steps: constructing a parameterized three-dimensional building model based on spatial information; based on the three-dimensional building model and the external meteorological parameters, coupled physical field simulation is carried out on sunlight, natural lighting and natural ventilation conditions in the target building space, and quantitative environment field distribution data is obtained; matching and fusing the environment field distribution data with a preset risk mapping rule based on allergen breeding physical conditions, identifying and dividing different levels of environment risk areas in the target building space, and generating a visual risk distribution map with space coordinates; and generating a personalized report containing a targeted environment intervention strategy bound with the spatial position based on the specific risk area position and the grade thereof in the risk distribution map. According to the method, quantitative environment data support is provided, and health suggestions are upgraded from experience judgment to data decision.

The utility model relates to the technical field of frequency conversion cabinets, in particular to a jacking structure for a frequency conversion cabinet. The jacking structure for the frequency conversion cabinet comprises a frequency conversion cabinet body, a main bus is arranged on the side face of the upper end face of the frequency conversion cabinet body, and a jacking assembly used for overall heat dissipation and safety protection is arranged at the upper end of the frequency conversion cabinet body and located above the main bus. According to the jacking structure for the frequency conversion cabinet, the top is mainly divided into two layers, the lower layer is used for ventilation and heat dissipation, and the upper layer is used for rain prevention. Through the layered design, natural ventilation and heat dissipation of the frequency conversion cabinet are realized, an air-conditioning fan is omitted, the cost is saved, and the reliability is improved. The device is not only suitable for frequency conversion cabinets, but also can be used in wire inlet and filter cabinets.

The invention discloses a natural ventilation cooling tower inner wall corrosion prevention method adaptive to an extreme temperature difference environment, and belongs to the technical field of cooling tower corrosion prevention. Comprising the steps that leakage treatment is conducted, specifically, according to cracks, honeycomb-shaped defects and holes in the inner wall of the cooling tower, drilling is conducted by adopting drilling parameters matched with the extreme temperature difference, after a grouting water stop needle is embedded, a corresponding grouting material is injected according to the dry and wet state of a leakage part, after grouting is completed, preset time is observed, and after it is confirmed that no leakage exists, the grouting needle is cut off, and a needle hole is plugged; the exposed ribs on the inner wall of the cooling tower are subjected to rust removal, a cracked and warped concrete protection layer and loose concrete are chiseled away, the concrete missing position is repaired with anti-crack mortar, and the water content of the inner wall is controlled to be smaller than or equal to 8% by flushing a cylinder body for standby application; and anti-corrosion coating is conducted, specifically, the surface of the treated base layer is sequentially coated with cyanogen setting permeable seal primer, cyanogen setting intermediate paint and cyanogen setting waterproof and anti-corrosion finish paint.

The present application relates to the technical field of cooling tower, and particularly relates to a salt control and mist removal natural ventilation cooling tower and a working method thereof, which comprises a tower body, a water remover and a water collecting pool, the water remover is arranged above the inside of the tower body, the water collecting pool is arranged at the bottom of the tower body, a total cooling area is arranged below the inside of the tower body, the total cooling area is composed of staggered combination of wet cooling areas and dry cooling areas, the wet cooling areas and the dry cooling areas are used for changing the temperature and the humidity content of the flowing air, through cooperation of the dry cooling areas and the wet cooling areas, the mist can be removed, meanwhile, the salt-containing droplets can be evaporated in the flowing process, so that a large amount of salt deposition near the cooling tower can be avoided, the cooling of the circulating water by the dry cooling area does not cause evaporation loss, and water saving benefit is achieved.

The invention discloses a refrigerating unit control method for air circulation analysis, and belongs to the technical field of refrigerating equipment. The method is applied to the air conditioner, the air conditioner comprises an indoor unit and an outdoor unit, the outdoor unit comprises a refrigerating unit, the indoor unit receives first operation data of an electric door and window of an area where the indoor unit is located, and the indoor unit obtains the first operation data, second operation data of the air conditioner and indoor environment data of the indoor unit. The indoor environment data comprises indoor temperature and indoor carbon dioxide data; determining air circulation data according to the second operation data and the indoor environment data; determining the natural ventilation performance of the electric door and window according to the air circulation data and the first operation data; and operation of the refrigerating unit is controlled according to the natural ventilation performance and the historical control data of the electric door and window, and the operation efficiency of the refrigerating process is improved.

According to the underground roadway ventilation system, the natural pressure difference between a tunneling roadway and an air return roadway is ingeniously utilized, and dirty air is automatically discharged to the air return roadway. The system comprises key components such as a tunneling roadway, an air inlet roadway, an air return roadway, an air supply part and an air suction pipe. The air inlet roadway conveys fresh air to the tunneling roadway through the air supply part, and the air suction pipe is arranged near the tunneling face to introduce dirty air into the air return roadway. The air return roadway and the tunneling roadway are not located on the same plane, natural ventilation power is formed through pressure difference, and an extra exhaust fan is not needed. In addition, the system can be provided with a detection device to monitor environmental parameters in the roadway in real time and intelligently adjust the air supply state. The ventilation system is simple in structure, energy-saving and environment-friendly, and the energy consumption and the maintenance cost of the ventilation system are effectively reduced.

The utility model discloses a novel sunshade daylighting board, including structural frame and at least one sunshade unit of setting on structural frame, sunshade unit includes first sunshade board and second sunshade board of interval arrangement, the front and back two ends of adjacent first sunshade board and second sunshade board are connected through a first connecting plate respectively, and its left and right sides are connected through a piece of blade seal plate respectively, the board surface of first sunshade board and second sunshade board is equipped with multiple rows of air hole group respectively, and each row air hole group is formed by multiple air holes and is arranged in length direction interval continuously, and the adjacent row air hole group on the same sunshade board is staggered and is arranged, so that one row air hole group is offset in length direction relative to its adjacent another row air hole group, and the rule of misalignment arrangement is formed, the utility model discloses guarantee the sunshade effect simultaneously, has improved natural ventilation efficiency significantly, and misalignment arrangement has strengthened structural aesthetic appearance and the uniformity of light scattering.