SU868278A1 - Apparatus for conditioning air - Google Patents

Description

(54) AIR CONDITIONING DEVICE

one

This invention relates to an Air Conditioning technique.

A device for air conditioning is known, comprising an air conditioner with an outside air valve, a first recirculation canal with a jaapan, a first preheater heater, a contact device with a bypass and an irrigation system having a three-way valve, a second preheater heater, and an air movement booster, temperature sensors and moisture content outdoor air and room air, mode switching and optimization units, heat supply system for heaters with control valves and temperature and pressure sensors Heat carrier

A disadvantage of the known device is the low exergy efficiency of using heat and cold when used for cooling compression refrigeration machines, due to the fact that the device does not take into account the exergy of cold water, and also does not allow to change it.

The purpose of the invention is to increase the exergy efficiency of using heat and cold when used for cooling a compression chiller.

The goal is achieved by the fact that the device additionally contains temperature and moisture content sensors installed in the room, connected to the optimization unit, a cold water temperature sensor of the irrigation system, a temperature sensor

To boil the freon installed in the evaporator of the refrigerating machine, the regulator of the position of the control valve of the first preheater heater with the sensor for its degree of opening, connected

15 through the mode selector unit with the output of the optimization unit, the position controller of the cooling valve of the chiller with the degree of its opening connected through the unit

20 switching modes with an output of the optimization unit, an exergy regulator associated with a cold water temperature sensor, suction valves of a compressor of a refrigerating machine, and a 2S mode switching unit with an output of an optimization unit.

The drawing shows a functional diagram of an air conditioning unit.

The air conditioning device comprises an air conditioner 1 with an outside air valve 2, a first recirculation channel 3 with a valve 4, a first preheater heater 5, a contact device b with a bypass 7 and an irrigation system 8 having a three way valve 9, a second preheat heater 10 and a booster 11 air movement, sensors 12–15 of temperature control and moisture content of outside air and air of room 16, blocks 17 and 18 of mode switching and optimization, heating system 19 for heaters with control valves 20 and 21 and sensors 22 and 23. temperature and pressure heat 9, sieve. In addition, the device further comprises temperature and moisture content sensors 24 and 25 installed in the room, connected to optimization unit 18, cold water temperature sensor 26 of the irrigation system 8, freon boiling temperature sensor 27 installed in the evaporator 28 of the refrigerating machine 29, regulator 30 the position of the control valve 20 of the heater 5 of the first heating with the sensor for its degree of opening, connected via the mode switching unit 17 to the output of the optimization unit 18, the position controller 31 is throttled between the valve and the valve

32 refrigerating machines with a degree of its opening function, connected through the mode switching unit 17 with the output of the optimization unit 18, the controller

33xergy related to sensor

26 cold water reclaimer, with suction valves 34 of compressor 35 of refrigerating machine 29 and through mode switching unit 17 c. output of block 18 optimization.

In addition, the device contains a device 36 for adjusting the capacity of the booster 11, air pressure sensors 37 and 38 in the air conditioner 1, a circulation pump 39 for the irrigation system 8, a condenser 40 and a pump 41, temperature and moisture controllers 42 and 43.

The device work isn t as follows.

the outside air is taken in by the air conditioner 1 through the valve 2, mixed with recirculated air entering the air conditioner 1 through the channel 3 With the adjustable valve 4. The resulting mixture is heated in the air heater 5. Then part of the air is cooled and dried (humidified) in the contact apparatus 6 after which it is mixed with a part of the air flow passing through the bypass 7, the Nova mixture is heated in the heater 10 and is forced into the room 11.

The circulating pump 39 supplies cold water from the evaporator 28 of the chiller 29.

Compressor 35 circulates refrigerant in a chiller. Refrigerant vapor is cooled in condenser 40 as a result of heat exchange with water supplied by pump 41, for example, from a cooling tower. Water in evaporator 28 is cooled by heat exchange of boiling refrigerant with water circulating in the irrigation system 8.

Characteristic temperatures, moisture content, pressure are measured by appropriate sensors and the value of the exergy efficiency of the device is calculated from their values, and accordingly its optimization unit 18 determines the air treatment technology.

In winter, the air temperature in the room is stabilized by changing the flow rate of heating water passing through the heaters 5 and 10 depending on the deviation of the exergy efficiency index, while the displacement of the valve stem 20 is proportional to the deviation of the efficiency value and depending on the deviation of the room temperature.

In the summer period, the exergy of cold water after the evaporator 28 of the refrigerating machine 29 is stabilized by simultaneously changing the position of the suction valve 34 of compressor 34 and the throttle valve 32 is proportional to the deviation of the exergy efficiency coefficient. In addition, the position of the suction valve 34 is varied depending on the magnitude of the exergy of cold water.

The use of the proposed device, for example, in the winter period due to the redistribution of disposable exergy between the heaters, saves energy and fuel costs in some cases up to 30%, and in the summer period by 15-20%.

Claims (1)

1. USSR author's certificate in application 2689468, cl. F 24 F 11/00, 1978.