119 results about "Ventilation mode" patented technology

The invention discloses a temperature control lifting and rotating self-adaptive movable house, belongs to the technical field of constructional engineering, and aims at solving the problems that an existing temporary building is insufficient in thermal environment regulation and control, weak in self-adaptive capacity, high in energy consumption and the like. The box house comprises a house body, a paraffin-based thermal expansion driving system, an outer wall thermal bimetal shutter curtain wall system, an intelligent control system and a solar photovoltaic and ventilation integrated system. Wherein the paraffin-based thermal expansion driver can adjust the distance between a house and the ground, the thermal bimetal shutter curtain wall can dynamically shade and ventilate, the intelligent control system monitors parameters such as temperature gradient and heat exchange temperature difference, all the systems are linked to achieve automatic switching between a winter heat preservation mode and a summer ventilation mode, and the solar photovoltaic and ventilation system improves the energy utilization efficiency. Through cooperation of multiple systems, the box room can adapt to environment temperature changes, maintain the indoor comfortable temperature, reduce energy consumption and enhance the environment adaptability and structural stability of a temporary building, and is suitable for construction sites, disaster rescue and other scenes.

The invention discloses a long and large tunnel fire situation real-time prediction method based on image recognition and physical information fusion, and the method comprises the steps: 1, building a large and large gradient tunnel fire simulation device in a complex ventilation mode, and constructing a large and large gradient tunnel fire data set; 2, constructing a big gradient tunnel fire parameter prediction network based on a Vision Transform architecture; and 3, constructing a total loss function of the large gradient tunnel fire parameter prediction network and performing training so as to obtain an optimal fire parameter prediction model which is used for predicting the large gradient tunnel fire image and physical information to obtain large gradient tunnel fire parameters. According to the invention, dynamic simulation of a large gradient tunnel fire in a complex ventilation mode can be realized; and according to the flame image and the physical information, predicting the heat release rate of the fire hazard of the large gradient tunnel with different gradients / pressures / fuels / heights / positions and the temperature and heat flow distribution at different positions below the ceiling in real time under the coupling action of the complex ventilation mode in the construction operation and maintenance stage.

The invention discloses an electric turbine anaesthesia machine with an automatic air supply function of an air storage bag and a method, and the anaesthesia machine comprises a turbine which is used as an active inspiration air source; a detachable air storage bag; an air supply one-way valve; the breathing circuit is connected between the turbine outlet and the patient end and comprises an inspiration branch provided with a flow diaphragm, an expiration branch provided with an expiration EV valve and an expiration flow diaphragm, and a patient breathing circuit tank assembly containing the air storage bag and the soda lime tank; a plurality of sensors; the control unit is electrically connected with and controls the turbine and the expiration EV valve, receives signals of the sensor and is used for achieving different breathing ventilation modes. According to the anesthesia machine and method, turbine driving is adopted, the tidal volume adjusting range is wide, and physical limitation of a folding bag is avoided; the air storage bag is externally arranged and replaceable, so that cleaning and maintenance are facilitated; a one-way valve automatic gas supply mechanism ensures continuous and stable gas supply; the device supports various breathing modes, and is suitable for various scenes such as anesthesia maintenance, postoperative awakening, oxygen therapy and the like.

This image is primarily an operational image for heat exchange type ventilation fans, used for switching ventilation modes and setting dehumidification / humidification. Specifically, the display within the hexagon and the arrow-shaped figure outside the hexagon change according to the ventilation mode, and the ventilation mode can be switched by operating the control panel at the bottom of the image.

This invention provides a ventilation device for tunnel construction, including an air supply duct, an air inlet duct rotatably mounted inside one end of the air supply duct, an air inlet valve mounted on the end of the air inlet duct opposite to the air supply duct, and a dehumidification box fitted on the outside of the air supply duct. The air inlet duct can be connected to or disconnected from the dehumidification box. Air inlets are provided on both sides of the dehumidification box, and an evaporation assembly and a condenser are sequentially arranged inside the dehumidification box corresponding to the air inlets. The evaporation assembly has a support frame corresponding to the air inlets, and dehumidification plates are evenly arranged inside the support frame. A desiccant mechanism for removing condensate from the sides of the dehumidification plates is slidably mounted on their outer side. The tunnel construction ventilation device of this invention can switch the connection or disconnection between the air inlet duct and the dehumidification box as needed, enabling the device to have both direct air supply and dehumidification air supply ventilation modes, meeting the ventilation needs under different external air conditions during tunnel construction and reducing the humidity inside the tunnel.

This invention provides a processing system, comprising: a first temperature regulating component, which, when the processing system is in dehumidification mode, cools and dehumidifies the fresh air passing through it to form low-humidity fresh air; and, when the processing system is in ventilation mode, heats the low-humidity fresh air. A first heating component is used to heat the low-humidity fresh air flowing out of the first temperature regulating component. A component to be dried is disposed within the ventilation area of ​​the drying unit, and the low-humidity fresh air flowing out of the first heating component passes through the ventilation area of ​​the drying unit to form exhaust air. A first solution heat exchanger is connected to the ventilation area to allow heat exchange between the heat exchange liquid and the exhaust air flowing out of the ventilation area, thereby exchanging heat with the low-temperature liquid to form a high-temperature liquid. The high-temperature liquid is used to enter a heating channel to heat and dry the component to be dried. This invention solves the problem of high energy consumption in gelatin drying in the prior art.

The disclosure provides a method of operating a (HVAC) system. The method includes measuring a concentration of a gas in the target space, and determining that the concentration exceeds a gas concentration threshold. The method includes determining that operation of the HVAC system in a ventilation mode is indicated to reduce the concentration of the gas. The method includes determining a total capacity of the HVAC system, and determining a current capacity of the HVAC system. The method includes causing the HVAC system to operate in the ventilation mode after validating that the total capacity is greater than the current capacity during operation of the HVAC system in the ventilation mode.

The invention discloses a temperature and humidity control circuit for an NOR memory, which relates to the technical field of NOR memories and comprises an NOR memory module for supplying power and storing data, a humidity detection module and a temperature detection module for detecting the temperature and humidity of the NOR memory, and a control module for controlling the temperature and humidity of the NOR memory. When the detected temperature is larger than a set over-temperature threshold value or the detected humidity is larger than an over-humidity threshold value, the temperature and humidity adjusting module is controlled by the driving control module to conduct temperature and humidity adjusting control in a ventilation mode; the state detection module detects the change rate of the temperature, controls the temperature and humidity adjusting module to adjust the temperature and humidity when the change rate of the temperature is larger than a set change threshold value, and adjusts the temperature and humidity adjusting rate of the temperature and humidity adjusting module when the temperature is over-high or the change rate of the temperature is larger than the change threshold value and the temperature is over-high. According to the temperature and humidity control circuit for the NOR memory, the temperature and humidity reduction effect on the NOR memory can be improved.

The utility model relates to a temperature control type spray booth for a pressure container, which comprises a booth body, a pressure equalizing chamber positioned right above the pressure container, an air supply outlet communicated with the pressure equalizing chamber, and an exhaust outlet positioned below the side edge of the pressure container, the air supply outlet is connected with an air supply system through an air supply pipe, and a temperature control device is arranged in the air supply system. And the exhaust outlet is connected with a paint mist filtering exhaust device. The air supply system is mainly used for supplying fresh air and maintaining constant temperature and humidity to meet paint spraying requirements under heat exchange of the temperature control device, and indoor laminar flow air supply is achieved by arranging the positions of the pressure equalizing chamber and the paint mist filtering exhaust device and adopting a ventilation mode of upper supply and lower suction. And meanwhile, the pressure equalizing chamber is arranged, so that uniform transmission of air speed is ensured, the requirements of indoor air speed and wind field uniformity can be met, paint mist generated in the paint spraying process can be captured in time, and the operation environment is improved.

The invention relates to a subway tunnel hydrogen energy vehicle high-pressure hydrogen leakage monitoring and hydrogen discharging method. The method comprises the steps that hydrogen sensors are arranged on a subway tunnel ceiling at preset intervals; the hydrogen concentration measured by each hydrogen sensor is obtained, and the hydrogen sensor with the hydrogen concentration larger than or equal to a first preset threshold value is marked as a target hydrogen sensor; determining a tunnel where the target hydrogen sensor is located, marking the tunnel as a leakage tunnel, and determining a tunnel type of the leakage tunnel; hydrogen storage pressure of a high-pressure hydrogen storage tank of the hydrogen energy vehicle is obtained, and corresponding ventilation information is obtained in a preset database according to the tunnel type and the hydrogen storage pressure; and based on the obtained ventilation information, the leakage tunnel is controlled to conduct ventilation in the obtained ventilation mode, and the ventilation wind speed is controlled to be the basic wind speed till the hydrogen concentration is reduced to be below a preset safety threshold value. Hydrogen is effectively prevented from being accumulated on the tunnel vault to form explosive mixed cloud, the explosion risk is greatly reduced, and operation safety of the underground space is guaranteed.

The invention relates to an integrated multilayer breeding ventilation device capable of switching ventilation modes, and belongs to the field of breeding ventilation equipment.The integrated multilayer breeding ventilation device comprises an air inlet mechanism and / or an air outlet mechanism, the air inlet mechanism comprises an air inlet duct, and an air inlet hole is formed in the bottom of the air inlet duct; an air adjusting mechanism is arranged on the open side of the air inlet duct; the air outlet mechanism comprises an air outlet duct; an air outlet hole is formed in the top of the air outlet duct; the air outlet side stand column is arranged in the length direction of the interior of the air outlet duct and comprises an airflow circulating mechanism. Through integrated integration of a physical structure and intelligent circulation design of airflow organization, the problems of high cost and difficult maintenance caused by split equipment are directly solved, the pain point of traditional ventilation energy waste is effectively overcome through waste gas energy internal circulation, meanwhile, the flexibility of a ventilation mode is improved, and the ventilation efficiency is improved. And the novel design has economical efficiency, energy-saving performance and high efficiency.

The invention provides a temperature control method and device, electronic equipment and a storage medium, and relates to the technical field of aircraft air conditioners, the method comprises the steps that a set of input parameters are obtained, the set of input parameters comprise the environment temperature, a temperature setting signal and a defrosting demand signal, the defrosting demand signal is used for representing whether defrosting needs to be started or not, and the set of input parameters comprise the environment temperature and the temperature setting signal; the temperature setting signal comprises a signal of functional gears, and the functional gears comprise a refrigeration gear, a middle gear and a heating gear; a corresponding target operation mode is automatically selected according to the set of input parameters, wherein the target operation mode at least comprises a refrigeration mode, a heat pump heating mode, a ventilation mode and a defrosting mode; the aircraft air conditioning system is controlled according to the target operation mode to adjust the temperature in the aircraft cabin, and the heat pump air conditioning system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, an expansion valve and a four-way valve. According to the technical scheme, the reliability of the air conditioning system of the aircraft is improved.

In this heat exchange-type ventilation device, an air supply air passage is divided into a common air supply air passage and a non-common air supply air passage. An exhaust air passage is divided into a common exhaust air passage and a non-common exhaust air passage. The position of the common air supply air passage and the position of the common exhaust air passage relative to a heat exchange device are shifted from each other. During operation in the normal ventilation mode, a control device closes the non-common air supply air passage by an air supply air passage switching damper, and closes the non-common exhaust air passage by an exhaust air passage switching damper.

The multi-mode adjusting constant-temperature and constant-humidity silo comprises a silo body, an inner barrel, an inner barrel water cooling assembly, a silo bottom air cooling assembly and a monitoring control assembly, the inner barrel is concentrically fixed in an inner cavity of the silo body, and a material distributing part is arranged at the top end of the inner barrel and located under a feeding port. The inner cylinder water cooling assembly is fully arranged on the inner side wall of the inner cylinder and used for conducting water cooling on the periphery of the inner cylinder. The silo bottom air cooling assembly is fixedly arranged in the silo body at the bottom end of the inner barrel, and cooling air is introduced into the inner barrel and finally discharged from the silo top ventilation holes; the monitoring control assembly monitors the temperature and humidity of the inner cylinder and the inner wall of the silo body in real time and controls the inner cylinder water cooling assembly and the silo bottom air cooling assembly to work cooperatively. According to the invention, a mixed cooling mode of'water cooling + air cooling 'and'bin wall + bin interior' is adopted, so that the defects of low efficiency and large resistance of a traditional air duct ventilation mode are avoided, and digital-intelligent and efficient constant-temperature and constant-humidity control is realized.

The invention provides a partition carbonization control method for solid waste-based muck carbonization piles and a three-dimensional breathable network, the method is based on the three-dimensional breathable network, the three-dimensional breathable network is provided with multiple layers of gas diffusion channels capable of being independently controlled, and the method comprises the following steps: S1, investigating, leveling and removing field sundries; s2, a pile hole with the specified diameter and depth is formed in the site; s3, hoisting and sinking the three-dimensional breathable network to a designed elevation position in the pile hole; s4, solid waste-based slurry is poured into the pile hole to a preset height; and S5, a gas path controller is arranged between the top end of each gas diffusion channel and the gas source, and the control unit sequentially starts the gas path controllers of the gas diffusion channels according to a preset time sequence, so that the carbon dioxide gas is conveyed to different areas of the pile body at different times, and time-sharing and zoning carbonization is conducted on the pile body. The problems of non-uniform gas distribution, low carbonization efficiency and the like in a traditional single-pipe ventilation mode are solved, and the carbonization uniformity and the construction efficiency of the pile body are remarkably improved.

The invention belongs to the technical field of gas control. In order to solve the problem of gas overrun existing in an existing ventilation mode, the ventilation system and method for preventing gas overrun of the stope face of the high outburst mine are provided, the system comprises the stope face and an adjacent face which are adjacently arranged, and the stope face and the adjacent face both adopt a U-shaped ventilation layout and are each provided with two crossheading roadways; the crossheading bottom drainage roadways are arranged in lower rock stratums of two adjacent crossheading roadways and are used for gas pre-drainage and air return; the ventilation hole group is arranged in a crossheading roadway of an adjacent surface and is communicated with a crossheading bottom suction roadway; the ventilation transverse section group is arranged between two adjacent crossheading roadways, so that return air of a stoping face is discharged through two paths of the ventilation transverse section group, one path enters the crossheading roadway of the adjacent face to form a main return air channel, and the other path enters the crossheading bottom suction roadway through the ventilation hole group to form an auxiliary return air channel. According to the system, under the condition that no roadway needs to be added, fresh air flow supply of the stoping face is increased, and the gas control pressure of single-roadway ventilation of the return airway is decomposed.

The invention relates to the technical field of mine ventilation, and discloses an intelligent magnetic suspension ventilation system for improving air under a mine, the intelligent magnetic suspension ventilation system comprises a magnetic suspension axial flow fan and an air outlet pipeline, a plurality of air outlet plates are equidistantly mounted at a ventilation opening in one side of the air outlet pipeline, and each air outlet plate is hinged to the air outlet pipeline through a connecting rotating rod; and the connecting rotating rod is sleeved with a torsional spring. According to the scheme, efficient ventilation of a magnetic suspension draught fan and a pure mechanical fire prevention and control system are innovatively and deeply fused, the system ingeniously utilizes the installation kinetic energy, air pressure transmission and material thermosensitive characteristics, and intelligent switching between an efficient ventilation mode and a fireproof sealing mode can be automatically completed according to the environment state under the condition that no external energy is needed. According to the system, the mine ventilation requirement is guaranteed in daily operation, a reliable fireproof barrier can be automatically constructed when a fire breaks out, unification of operation efficiency and intrinsic safety is achieved, and a practical and effective technical guarantee is provided for improving the mine safety production level.

The invention discloses a non-invasive sleep monitoring and intervening system, which constructs a thoracic and abdominal ventilation displacement model through human body micro-motion phase calculation of millimeter wave radar, and realizes continuous and non-contact monitoring of respiratory rhythm, ventilation change and body motion state. The system further utilizes a time-frequency fusion feature and trend analysis method to identify and predict sleep disorder events such as snoring, apnea and hypopnea in real time, and generates acoustic disturbance signals meeting sound pressure and frequency constraints before and after the events are formed, so that the ventilation mode or sleeping posture of a user is promoted to be controllably and finely adjusted on the premise that the user is not awakened, and the sleep disorder events are prevented from being disturbed. Therefore, the abnormal event duration is shortened and the sleep quality is improved. The method is suitable for sleep monitoring equipment, bedside lamps, intelligent sound boxes or desktop type health equipment, and algorithms and intervention strategies can be further optimized through software upgrading.

The application provides a ventilation method for three-hole parallel submarine tunnel construction, which comprises the following steps: obtaining a tunnel construction air quality standard; when the service tunnel is not through, blowing air into the excavation opening of each tunnel, and discharging the air from the excavation opening of each tunnel after backflow; when the service tunnel is not through and the air quality of the main tunnel is less than the air quality standard, blowing air into the excavation opening of the service tunnel, part of the air entering the two main tunnels respectively in a transverse direction, discharging the air from the excavation opening of each main tunnel after backflow, and discharging the air from the excavation opening of the service tunnel; and when the service tunnel is through, blowing air into the excavation opening of the service tunnel, part of the air entering the two main tunnels respectively in a transverse direction, and backflowing in the service tunnel and discharging the air from the through opening of the service tunnel. The application aims to solve the problem that the existing ventilation method causes excessive loss of air volume during tunneling, which seriously affects the construction progress and the health of construction workers.

The invention relates to the technical field of building ventilation and environment control, and provides an indoor environment quality optimization method and system based on a space network pressure gradient. The internal space of a house is divided into a clean space, a pollution source space and a transition space, a ventilation network is constructed, and a mechanical exhaust device is arranged in the pollution source space; outdoor fresh air is guided to sequentially flow through the cleaning space, the transition space and the pollution source space, and after indoor pollutants are collected, the outdoor fresh air is finally discharged out of the pollution source space; carbon dioxide concentration data are collected through a monitoring unit arranged on an airflow path key interface, the stability of the pressure gradient is judged according to the concentration gradient among the cleaning space, the transition space and the pollution source space, and the exhaust air rate is automatically adjusted to maintain directional airflow. The fluid network theory is introduced for quantitative analysis and design, so that the system performance can be predicted and optimized, and blindness and uncertainty of a traditional ventilation mode are eliminated.

A ventilation rooftop air-conditioning system includes a housing unit, an air blower unit and an air-conditioning unit, wherein the housing unit includes a main body and a lid body, and a fixing element is disposed in the interior of the main body, and the interior of the main body is divided into a circulation channel and a ventilation channel by the fixing element, and an evaporator is disposed on the fixing element; wherein the ventilation rooftop air-conditioning system has a ventilation mode in which air flows in the ventilation channel and does not pass through the evaporator and a circulation mode in which air passes through the circulation channel, the evaporator and the ventilation channel in turn.

The invention discloses a ventilation type vacuum photovoltaic window system and a system optimization method based on a ventilation mode, and relates to the technical field of vacuum photovoltaic window design and optimization. The technical problem that high power generation efficiency of a photovoltaic module in the daytime and low heat loss at night are difficult to take into account in an existing ventilation vacuum photovoltaic window installed in a cold high-altitude area at present is solved. The photovoltaic glass module and the vacuum glass module are included, an air cavity is formed between the photovoltaic glass module and the vacuum glass module, light-transmitting opening and closing plates are arranged on the upper side and the lower side of the photovoltaic glass module and the upper side and the lower side of the vacuum glass module respectively, and the light-transmitting opening and closing plates are opened and closed to form ventilation openings which are opened and closed independently. Corresponding sides, far away from the air cavity, of the photovoltaic glass module and the vacuum glass module are communicated with the air cavity through the ventilation openings respectively; the invention aims to give consideration to both high power generation efficiency of a photovoltaic module in daytime and low heat loss at night.

The application discloses a tunnel construction ventilation method in a plateau area, comprising the following steps: S1, in the horizontal hole construction stage, a first fan assembly is arranged at the horizontal hole opening, air is supplied to the working face of the horizontal hole and the horizontal hole branch hole through the first air pipe assembly by using the pressure-in ventilation mode until the construction of the horizontal hole and the horizontal hole branch hole are completed; S2, a second fan assembly is arranged at the horizontal hole branch hole opening, air is supplied to the working face of the left line of the main hole and the right line of the main hole through the second air pipe assembly by using the pressure-in ventilation mode; and S3, a third fan assembly is arranged at a position close to the second auxiliary hole in the right line of the main hole, air is supplied to the working face of the left line of the main hole and the right line of the main hole by using the roadway ventilation mode. Based on the construction characteristics of the tunnel, the construction ventilation system and the ventilation method are optimized according to different construction stages, so that the problem that the ventilation effect in the tunnel is difficult to guarantee in the tunnel construction in the plateau area can be solved well.

An HVAC system includes an evaporator coil, a compressor, and a sensor housing positioned upstream of the evaporator coil. The sensor housing contains a gas sensor configured to measure a concentration of total volatile organic compounds (TVOCs) in an airflow. A controller receives TVOC concentration measurements and operates the HVAC system in a normal operating mode that conditions air for a space. When the measured TVOC concentration exceeds a first threshold, the controller transitions the HVAC system to a ventilation mode in which air is introduced into and discharged from the system to reduce contaminant levels. If the TVOC concentration exceeds a second, higher threshold, the controller generates a notification indicating that an external source of TVOCs may be present. The system enables automated monitoring of indoor air quality and adaptive HVAC operation based on detected contaminant levels.

Mine safety ventilation equipment with real-time environment monitoring and self-adaptive adjustment functions comprises an adjusting box, a walking mechanism is arranged at the bottom of the adjusting box, a supporting mechanism is arranged on the side portion of the adjusting box, and a driving motor, a transmission mechanism and a ventilation mechanism are arranged in the adjusting box; a main shaft of the driving motor is provided with a vertically upward driving shaft, and the driving shaft is provided with a main driving wheel. The invention belongs to the technical field of mine ventilation equipment, the layout of a driving motor, two sets of transmission mechanisms and two sets of ventilation mechanisms is arranged in an adjusting box, an air blowing structure is simple, and maintenance and repair operation can be conveniently carried out through a maintenance door; a wind power reversing device is arranged on a ventilation pipeline of the ventilation mechanism, so that ventilation modes in various modes and various directions are realized; the flow, temperature, humidity and harmful gas parameters of air can be monitored in real time; the operation power consumption of the equipment can be adjusted through two transmission mechanisms, and the ventilation efficiency is improved.

The invention discloses a split type elevator air conditioner and a control method thereof and an elevator, the split type elevator air conditioner comprises an evaporator unit, the evaporator unit comprises an evaporator assembly and a first fan, the first fan is arranged at a bottom air outlet of the evaporator assembly, and the first fan is communicated with an elevator car; the condenser unit comprises a condenser assembly and a second fan, and the condenser unit and the evaporator unit are arranged in a split mode; the condensate water treatment unit comprises a condensate water collection assembly and a condensate water evaporation assembly, the condensate water collection assembly is arranged in the evaporator unit, the condensate water evaporation assembly is arranged in the condenser unit, and the condensate water treatment unit is used for treating condensate water generated by the evaporator unit; the controller is electrically connected with the first fan and the second fan; and a driving motor of the first fan and a driving motor of the second fan are mutually independent, so that the controller can control the air conditioner to be switched between a refrigeration mode and an independent ventilation mode. Space utilization rate is high, operation modes are flexible, and adaptability is high.

The invention discloses an aluminum-plastic co-extrusion composite profile energy-saving door and window, and relates to the technical field of doors and windows. The aluminum-plastic co-extrusion composite profile energy-saving door and window comprises a mounting main rod, a mounting unit, an auxiliary unit and a ventilation unit, and a mounting auxiliary rod is arranged on the mounting main rod. According to the aluminum-plastic co-extrusion composite profile energy-saving door and window, efficient indoor and outdoor ventilation is achieved through the automatic ventilation fan, air circulation can be completed without opening glass, direct exchange of a large amount of indoor and outdoor air caused by traditional window opening ventilation is avoided, and great fluctuation of the indoor temperature is effectively reduced; especially in the scene of air conditioner heating, warm air running or large temperature difference in spring and autumn, the original indoor appropriate temperature can be reserved to the maximum extent, the energy consumption loss of temperature control equipment is reduced, and the core requirements of energy-saving doors and windows are met; meanwhile, by means of the ventilation mode, the requirement for fresh indoor air is met, and the problems of dust, noise, mosquito invasion and the like caused by window opening do not need to be worried about.

The utility model discloses an energy-saving kiln which comprises a roller kiln body, one end of the roller kiln body is provided with a preheating section, the other end of the roller kiln body is provided with a cooling section, the energy-saving kiln further comprises a first exhaust mechanism, a second exhaust mechanism and an air guide mechanism, and the first exhaust mechanism is arranged at the exhaust end of the preheating section; the second exhaust mechanism is arranged at the exhaust end of the cooling section; the air guide mechanism is arranged at the exhaust end of the second exhaust mechanism and the air inlet end of the preheating section and guides hot air into the preheating section through double-way staggered ventilation. The air guide mechanism is structurally arranged and is connected to the exhaust end of the second exhaust mechanism and the air inlet end of the preheating section, so that cooling and preheating of the cooling section can be guided to the preheating section for heat utilization, and energy is saved; and meanwhile, the air guide mechanism guides hot air into the preheating section in a double-path staggered ventilation mode, and under staggered ventilation preheating, the product preheating is more uniform.

The application discloses a fresh air conditioner and a fresh air outlet control method, and comprises the following steps: S1, when the fresh air function is started, detecting whether the main fan is in a running state; S2, if it is determined that the main fan is in a running state and the air guide door is in an open state, then entering S3; S3, detecting the running mode of the fresh air conditioner; S4, if it is determined that the fresh air conditioner is in a cooling mode, a heating mode, a ventilation mode or a dehumidification mode, controlling the rotation speed of the fresh air fan to be less than the rotation speed of the main fan damper; if it is determined that the fresh air conditioner is in the dehumidification mode, then closing the fresh air function; S5, when the damper of the main fan in the same running mode of the fresh air conditioner is switched, repeating S4; when the running mode of the fresh air conditioner is switched, repeating S3 and S4. According to the fresh air control method in the application, the rotation speed of the fresh air fan is always less than the rotation speed of the main fan when the user obtains a larger fresh air volume, the noise value is controlled in a reasonable range, and the user experience is improved.

This image is primarily an operational image for heat exchange type ventilation fans, used for switching ventilation modes and setting dehumidification / humidification. Specifically, the display within the hexagon and the arrow-shaped figure outside the hexagon change according to the ventilation mode, and the ventilation mode can be switched by operating the control panel at the bottom of the image.