SU1666879A1 - Air-conditioning system with automatic control of heat and humidity parameters of supply air - Google Patents

Abstract

The invention makes it possible to improve the quality of regulation of the heat-moisture composition of the supply air by the air conditioning system. The heat utilizer 14 is placed along the air movement between the irrigation chamber 2 and the heat exchanger 4 of the second heating. A dual air valve 16 with a drive 17 is located at the air inlet to the heat exchanger 14 and at its bypass duct 15. The inlet of the heat network of the heat exchanger 14 is connected to the output of the heat network of the heat exchanger 1 of the first heating. The actuator 17 is connected to the thermostat 13 of the supply air. Air duct 15 m. connected to the air outlet of the heat exchanger 4. 1 Il.

Description

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The invention relates to air conditioning and ventilation technology and can be used in a wide range of air conditioning systems.

The aim of the invention is to improve the quality of regulation of the heat-moisture parameters of the supply air.

The drawing shows a schematic diagram of the proposed air conditioning system.

The air conditioning system with automatic regulation of the heat and humidity parameters of the supply air contains heat exchanger 1 of the first heating arranged in series along the air movement, first heat exchanger 1, water circuit 3 irrigation chamber 2, second heat exchanger 4, heat fan 4, and return and return lines 6 and 7

heating networks control valves 8 and 9. installed on lines 6 and 7 of the heating network to heat exchangers 1 and 4 of the first and second heating, three-way valve 10 of the water circuit 3 of the chamber 2 irrigation temperature control unit 11 dew point communicated by control circuit 12 with control valve 8 of the air heater the first heating and three-way valve 10 of the water circuit 3 of the irrigation chamber 2, the supply air thermostat 13 connected by control circuits 12 to the control valve 9 of the second heat exchanger.

The system further comprises a heat exchanger 14, a bypass duct 15 of the heat emitter 14 and a dual air valve 16c driven 17. The heat exchanger 14 is placed along the air movement between the reflux chamber 2 and the second heat exchanger 4. Double power

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The damper valve 16c is driven by the actuator 17 at the air inlet to the heat utilizer 14 and on the bypass duct 15. The inlet of the heat line of the utilizer 14 is connected to the outlet of the heat line of the heat exchanger 1 of the first heating. The actuator 17 of the dual air valve 1 b is connected to the thermostat 13 of the supply air.

In addition, the system includes a pipeline 18 for supplying cold water and a drain pipe 19.

The bypass duct 15 may be connected to the air outlet of the heat exchanger 4 of the second heating.

The air conditioning system operates as follows.

During the winter period of time during operation of the fan 5, air is successively supplied through the heat exchanger 1 of the first heating, the irrigation chamber 2, the heat exchanger 14, the heat exchanger 4 of the second heating, and then is directed to the conditioned room. The humidity of the supply air is regulated according to the dew point method, i.e. by maintaining a constant air temperature behind the reflux chamber 2, which is controlled and maintained by the dew point thermostat 11 by acting on control circuit 12 on the control valve 8 of the first preheater heat exchanger 1 installed on the heating network line.

The entire coolant processed in the heat exchanger 1 through the heat exchanger 14 is discharged to the return line 7 of the heating system.

Irrigation chamber 2 operates in an adiabatic mode, for example, with a constant pressure of a circulation pump.

The temperature of the flow air is regulated by the thermostat 13, which acts on the dual air valve 16 and the control valve 9 of the heat exchanger 4 of the second heating. When the supply air temperature decreases, the valve 16 opens at the air inlet to the heat exchanger 14 and the valve 16 is covered by the bypass duct 15.

When the supply air temperature increases, the adjustment process goes in the opposite direction.

When the valve 16 is fully opened at the entrance to the heat exchanger 14 and the supply air is further heated by the command of the thermostat 13 in the control circuit 12, valve 9 opens on the heating network line at the second heat exchanger 4, and as a result, the supply air is heated to the desired temperature .

Improving the quality of regulation of the thermal parameters of the supply air in the winter mode is achieved by stabilizing the regulation process.

dew point temperature, which improves the accuracy of the controlled heat and humidity parameters.

In summer mode, the intake air is processed only in the 2-well chamber and in the heat exchanger 4 of the second heating. The heat exchanger 1 of the first heating and heat exchanger 14 are disabled. Dual air valve 16 is open only in the direction of the bypass duct 15. In this

In this mode, the supply air humidity is also regulated by the constant dew point temperature method by applying a thermostat 11 in chains 12 to the three-way valve 10 of the water circuit.

0 3. In this case, the water circulating in the water circuit 3 is mixed with cold water from the pipeline 18. Excess water from the irrigation chamber is removed through the drain pipe 19.

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Claims (1)

Claims of the Invention The air conditioning system with automatic regulation of the heat and humidity parameters of the fresh air, comprising successively arranged first preheater heat exchanger, water circuit irrigation chamber, second preheater heat exchanger, fan as well as 5 direct and return lines of the heat network, regulating valves installed on the heating network lines to heat exchangers of the first and second heating, three-way valve of the irrigation chamber water circuit, thermostat dew point controller communicated by control circuits with the control valve of the first heating heater and the three-way valve of the water circuit of the irrigation chamber, the thermostat of the supply air, 5 connected by a control circuit with a control valve of a second preheater heat exchanger, characterized in that, in order to improve the quality of control of the heat-moisture composition of the inlet air, the system further comprises a heat recovery unit. the bypass duct of the heat exchanger and the dual air valve with a drive, while the heat exchanger is placed along the air movement 5 between the irrigation chamber and the heat exchanger of the second heating, a dual air valve with a drive is located at the air inlet to the heat exchanger and bypass duct, the inlet of the heat exchanger heat line is connected to the outlet of the heat network of the first heat exchanger, and the dual air drive The valve is connected to the supply air thermostat.