Subatmospheric heating and cooling system

Abstract

Heat and cold supply subatmospheric system for air conditioning refers to the area of heat power engineering, namely energy-saving technologies and is designed for autonomous heating, hot water supply and cold supply of residential, public and industrial buildings. To implement effective heat supply, a vacuum-steam method of heat transfer by steam with a controlled depth of pressure drop is used, heat supply subsystem efficiency reaches 0.9. Cooling supply subsystem, which is integrated with the heat supply subsystem, includes: installation of a non-absorbed absorption water cooling refrigeration machine and a system of air coolers of indirect evaporative cooling in a vacuum environment, while ensuring energy efficiency with an EER of 12.5 kWt/kWt.

What is claimed is: 
     
         1 . Subatmospheric system of heat and cold supply includes: a heat supply subsystem containing a steam boiler, steam and condensate distribution system, device for creating a vacuum-controlled vacuum, device for water separation and air evacuation, system for transferring heat to the premises, device for pumping and raising condensate in a steam boiler with steam-water pump and a distribution system for steam and condensate, heat exchanger for the generator (boiler) of the AWARM unit; cooling supply subsystem, containing the installation of a pump-free absorption water-cooled refrigerating machine (AWARM). device for saturated water vapor evacuation and condensation, device for air coolers supplying with chilled water controlled supply, and air cooling unit for indoor air with air coolers and level tanks, differing in that it uses a vacuum vapor method for thermal energy transferring in a medium with a controlled depth of vacuum, and in the subsystem of cooling supply, to increase the efficiency of the evaporation process, a vacuum is created inside the air coolers sections and further, for pumped out water vapors condensation, and water pre-cooling after condensation of saturated vapors a water separator is used with cooling of water in it by installing AWARM pumpless. 
     
     
         2 . The system according to  claim 1 , wherein the heat supply subsystem is provided for the safe operation of the steam boiler, the energy supply automatic control and locking in the event of a fuel shut-off, the automatic control of the air separator electromagnetic valves when the subsystem is evacuated, switching depending on the desired operation mode vacuum water ring pump using relay K 1  and K 2 ; the cooling supply subsystem is equipped with a solenoid valve to remove excess air through an air separator from the heat supply subsystem, by means of automatic control system (conductometric sensors, level detectors of the automatic control unit, solenoid valves) by filling the level tanks with pre-cooled water. 
     
     
         3 . The system according to  claim 1 , wherein the internal cavity is evacuated in a non-absorbed absorption water-ammonia refrigerating machine. 
     
     
         4 . The system according to  claim 1 , wherein air cooler indirectly evaporative cooling in which the internal cavity of the sections is covered with a capillary-porous material, and also by the presence of water and air back-up device. 
     
     
         5 . The system according to  claim 1 , wherein the leveling tank contains a device for controlling the water level and an air supply pipe for balancing the water and air pressure of its internal cavity and in the air cooler trays. 
     
     
         6 . The system according to  claim 5 , wherein the water level monitoring device includes an automation system (conductometric sensors, automatic control unit level indicator, electromagnetic water supply valve) to maintain the required water level. 
     
     
         7 . The system according to  claim 1 , wherein the steam-water pump generates the working steam when heated from the burner unit and the new portion of water filling into the pump (without creating a vacuum within the pump), only by means of electromagnetic valve. 
     
     
         8 . The system according to  claim 7 , wherein the steam-water pump contains a system of automatic control of its operation (level-measuring column with conductometric sensors, level indicator of the automatic control unit, solenoid valve), water indicator, automatic control system and burner locking, fan for cooling the pump casing.