RU2005270C1 - Air conditioning system with automatic control of temperature and moisture content in incoming air - Google Patents

Description

circulation, discharge and make-up, as well as the forward and reverse refrigeration lines 19 and 20.

A difference in the system of Fig. 2 is that the first heating sections 3 and 4 are installed in parallel along the air flow.

The air conditioning system operates as follows.

Outside air is sequentially passed through sections 4 and 3 of the first preheating, an irrigation chamber, a second preheater heat exchanger 5 and a fan 12 are fed into the serviced room (not shown in the drawings).

The cold season.

The humidity of the supply air is controlled by a dew point thermoregulator 9 by acting on the outlet valve 14 of the return coolant; when the dew point temperature decreases, the outlet valve 14 opens, increasing the flow rate of the coolant from the direct line 1 of the heating network through both sections 3 and 4 of the first heating; at elevations it closes. In this case, the irrigation chamber 6 operates in adiabatic mode. The three-way valve 8 is open to the passage of water from the circulation pipe 16 to the pump 7, which feeds it through the discharge pipe 17 for spraying into the irrigation chamber 6. Compensation of the entrainment of water into the processed air is carried out via a feed line 18, for example, from a water supply system through a ball valve (not shown in the drawings).

The temperature control of the return coolant at the outlet of the second section 4 of the first heating is carried out by the temperature regulator 13 at a certain guaranteed minimum (20-30 ° C) by acting on the bypass valve 10: when the temperature of the return coolant decreases, the bypass valve 10 opens, increasing the flow rate and temperature of the coolant, passing through the second section 4 of the first heating, and reducing the flow of heat through the first section 3 of the first heating; at rise it closes. At the same time, the heat flow through the first heating is practically unchanged, which does not introduce a disturbing effect on the process of controlling the heat and moisture content of the supply air.

The supply air temperature is controlled by the temperature controller 11 by acting on the mixing valve 15: when the supply air temperature decreases, the valve 15 opens. which leads to an increase in temperature and flow rate of the coolant passing through the heat exchanger 5 of the second heating to the return line 2 of the heating network; at rise it closes.

As the outside temperature rises, valves 10 and 15 will open and valve 14 will close.

Finally, at a certain temperature, when it is not necessary to heat the outside air, the outlet valve 14 is completely closed, eliminating the flow of heat carrier on the first heating.

Warm season.

When the outlet valve 14 is completely closed, for example, through its end switches (not shown in the drawings), the dew point thermostat 9 is switched to control the three-way valve 8. When the temperature rises; the dew point valve 8 opens toward the straight side of the cold cooling line 19; at rise it closes. The excess water from the cold water from the direct line 19 of the cold supply system and the condensation of moisture from the treated air in the irrigation chamber 6 is returned by gravity through the return line 20 to the cold supply system.

The supply air temperature is controlled by the temperature controller 11 by acting on the valve 15: when the supply air temperature decreases, the valve 15 opens; at rise it closes.

The operation of the air conditioning system of FIG. 2 is carried out in a similar way for all control units, including maintaining the temperature of the return coolant within 20 ° C.

Moreover, the accuracy of maintaining this temperature may be within ± 5 ° C.

Thus, due to the new combination of essential distinguishing features, the proposed air conditioning system has high quality and economic indicators and can operate stably at different temperature schedules of the heating system in a wide range of outdoor temperatures.

(56) USSR Copyright Certificate No. 1668819, cl. F 24 F 3/06, 1989.

Claims (1)

SUMMARY OF THE INVENTION AUTOMATIC CONTROL AIR CONDITIONING SYSTEM FOR SUPPLY AND WATER AIR CONTAINER CONTAINING SYSTEM, comprising first and second sections of the first heating and a second heating heat exchanger, an irrigation chamber with a pump and a three-way water valve with a water control loop with a dew point torch, a bypass valve connected along the coolant parallel to the first section of the first heating, the supply air thermostat for the fan A torus, characterized in that the system further comprises a temperature regulator and an outlet valve for the return coolant of the second section of the first heating and a mixing valve, both of which. sections of the first heating are installed in series or in parallel along the air flow, the bypass valve is connected for control with the temperature regulator of the return coolant, the outlet valve is turned on control sequentially between the three-way valve of the irrigation chamber and the dew point thermostat, and the mixing valve is located in the heat supply line between the inlet of the first section and the outlet of the second section of the first heating behind the outlet valve of the return coolant and is connected by control to the supply air temperature regulator. fpve.i