Invention relates to stratum ventilation systems with annular air inlet and air supply method

Abstract

The invention pertains to the field of ventilation, introducing a stratum ventilation system with annular air inlet and air supply method. This system includes a fresh air element, a return air element, and an air supply element, all coordinated by a center console. The air supply element comprises a fresh air, a return air and a supply air section. The annular structure of the air supply section consists of an inner and an outer annular air duct. The return air element includes a return air outlet and a return air handling unit, while the fresh air element encompasses a fresh air inlet and handling unit. This invention provides return air to envelop the fresh air's annular structure, effectively extending the fresh air jet's core area to the occupied zone, thereby minimizing draft risks and reducing air mixing and energy consumption.

What is claimed is: 
     
         1 . The utility model relates to a stratum ventilation system with annular air inlet, characterized by comprising a fresh air element, a return air element, a supply air element and a central console, where fresh air element, return air element, and supply air element are electrically connected to central control console; the air supply element is installed in one wall of the room and comprises a fresh air section, a return air section and a supply air section, with one end of supply air section connected to room and the other end is connected with the fresh air element through the fresh air section, supply air section being connected to return air section above supply air section and to return air element through return air section, supply air section having annular structure formed by inner annular air duct in the middle and outer annular air duct outside inner annular air duct, inner annular air duct connected to fresh air section, outer annular air duct connected to return air section, inner annular air duct being closed structure between one end of fresh air section and outer annular air duct; return air element is installed above ceiling and consists of return air outlet, second return air pipe, return air handling unit, and first primary air pipe successively connected, with first primary air pipe connected to return air section; fresh air element consists of fresh air inlet, fresh air handling unit, and fresh air pipe connected successively, with fresh air pipe connected to fresh air section at end away from fresh air handling unit; fresh air handling unit and return air handling unit are equipped with temperature and humidity control mechanism, and sensor group is arranged on one side of fresh air inlet and return air outlet, with temperature and humidity control mechanism and sensor group electrically connected to central console. 
     
     
         2 . A stratum ventilation system with annular air inlet described in  claim 1  is characterized in that the temperature and humidity control mechanism comprise a filter section, a cooling coil, an electrical heater, a humidifying section and a fan. Between the air inlet end and the air outlet end of the fresh air handling unit and the return air handling unit, the filter section, the cooling coil, the electrical heater, the humidifying section and the fan are successively arranged; electric valves are installed on the cooling coil, electrical heater and humidifying section, and each electric valve is electrically connected with the center console. 
     
     
         3 . According to  claim 1 , a stratum ventilation system with annular air inlet is characterized in that a through hole is provided on the ceiling, and the through hole is used as a return air outlet to connect the room with the second return air pipe. 
     
     
         4 . According to  claim 3 , the stratum ventilation system with annular air inlet is characterized in that the second return air pipe comprises three pipes connected by a tee pipe, the first pipe is connected with the exhaust pipe, the second pipe is connected with the return air outlet, and the third pipe is connected with the return air handling unit, The exhaust outlet is connected with the outside. 
     
     
         5 . According to  claim 1 , a stratum ventilation system with annular air inlet is characterized in that the second return air duct, the first primary air duct and the fresh air duct are installed with regulating valves, and the regulating valves in each tube are electrically connected with the central control console. 
     
     
         6 . A stratum ventilation system with annular air inlet described in  claim 1  is characterized in that sensor group includes temperature sensor, humidity sensor, and speed sensor, with all sensors electrically connected to central console. 
     
     
         7 . The stratum ventilation system with annular air inlet described in  claim 1  is characterized in that a movable double air grille is installed at one end of the air supply section away from the fresh air section, and the air supply section is connected with the interior through the movable double air grille. 
     
     
         8 . The stratum ventilation system with annular air inlet described in  claim 1  is characterized by ventilation equalizing plate installed inside both the inner and outer annular ducts. 
     
     
         9 . The air supply method of a stratum ventilation system with an annular air inlet is characterized in that: the outdoor fresh air enters the air supply section of the air supply element through the fresh air element, the indoor return air enters the air supply section of the air supply element through the return air element, and the air supply section makes the indoor return air wrap the outdoor fresh air into the room. and supply air element in stratum ventilation system being controlled according to climate environment to achieve adjustment of indoor air environment. 
     
     
         10 . According to the air supply method of a stratum ventilation system with annular air inlet described in  claim 9 , it is characterized in that the fresh air element, return air element and supply air element in the stratum ventilation system are controlled according to the climate environment, including:
 When the climate environment is summer or winter, the fresh air element, return air element, and air supply element are opened through the central console, allowing outdoor fresh air to enter the room sequentially through the fresh air element and air supply element, while adjusting the regulating valve so that part of the indoor return air enters the room through the return air element and air supply element, and the remaining air is discharged outside through the outdoor exhaust outlet; as the indoor return air and outdoor fresh air pass through the fresh air and return air elements, indoor temperature and humidity data are collected by the sensor group and sent to the central control console, which then adjusts the temperature and humidity control mechanism based on this data to complete the filtration and heat and humidity treatment of both the indoor return air and the outdoor fresh air;   when the climate environment is not summer or winter, the outdoor air enthalpy value and indoor air enthalpy value are obtained, the outdoor air enthalpy value and the indoor air enthalpy value are compared, when the outdoor air enthalpy value is greater than the indoor air enthalpy value, the temperature and humidity control mechanism is started by the control console, and the opening of the fresh air pipe and the return air pipe is reduced and adjusted, Reduce the air supply volume of the air supply element;   When the outdoor air enthalpy value is less than the indoor air enthalpy value, the cooling coil, electrical heater and humidifying section in the temperature and humidity control mechanism are closed through the center console, and the fresh air volume is increased by increasing the opening of the fresh air pipe, and the opening of the return air pipe is reduced by reducing the return air volume.