SU1488682A1 - Air-treating device - Google Patents

Description

The invention improves the efficiency of the air handling unit. Supply 1 and auxiliary 2 air ducts (BB) are connected in counterflow to pe2

generative rotating heat exchanger 3. Inlet 4 BB 1 is in communication with the atmosphere. Output 5 BB 2 is connected to the irrigation chamber 6, communicated through the inlet 7 with the atmosphere. In BB 1, behind the heat exchanger 3, chambers 8 and heater (P) 9 are located successively along the air path, the outlet 10 which is in communication with the room. Output 11 BB 2 communicated with the atmosphere, In the pipe 7 installed P 12 At the entrance 13 P 9 and the output 11 BB 2 installed adjustable valves 14 and 15. Input 13 P 9 communicated through the valve 14 with the atmosphere. Output 11 BB 2 by means of bypass BB 16 communicated with the input 13 P 9, 1 Il.

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The invention relates to the technology of ventilation and air conditioning.

The purpose of the invention is to increase the efficiency of work.

The drawing shows a schematic diagram of a device for air Treatment.

The air treatment device contains inlet 1 and auxiliary 2 air ducts connected in countercurrent to the regenerative rotating heat exchanger 3, while the inlet 4 of the inlet air-15 water 1 is connected to the atmosphere, the outlet 5 of the auxiliary duct 2 is connected to the irrigation chamber 6 communicated through inlet 7 with atmosphere, in the intake duct 1 20

for a regenerative heat exchanger 3. successively along the air are additional irrigation chamber 8 and the heater 9, the output.

10 of which is communicated with the room 25

(not shown), and the output 11 of the auxiliary duct 2 - with the atmosphere.

| In the inlet 7 of the auxiliary duct 2 is installed, there is an additional heater. ·

At the inlet 13 of the main heater 9 and the outlet 11 of the auxiliary duct 2, adjustable valves 14 and 15 are installed, _l

Inlet 13 of the main heater 9 is additionally communicated through the adjustable valve 1.4 with the atmosphere, and the output

11 auxiliary duct 2 by means of an overflow duct 16 dd through valves 14 and 15 - with an inlet

13 main heater 9.

Filters 17 and 18 can be installed in the inlet 7 and inlet 4 of the supply air duct 1,

The device works as follows.

Depending on the parameters of incoming air to the treatment of external air, the device operates in one of three modes.

The first mode of operation.

Through the inlet 4 and the filter 18, the main outside air flow is supplied through the intake duct 1 to the rotating heat exchanger 3, cooled without changing its moisture content in the limit to the temperature of the wet outdoor air thermometer, then it can be cooled in the irrigation chamber 8 to the dew point of the inlet air, heated in the preheater 9 to the required supply air temperature and through the outlet 10 is supplied to the consumer.

The adjustable valve 14 at the same time overlaps the message input 13 of the main heater 9 with the atmosphere.

The process of cooling the outside air in the irrigation chamber 8 is carried out depending on the moisture content of the incoming outside air.

Auxiliary flow of external air through the inlet 7, the filter 17 and the disconnected additional heater 12 is fed into the irrigation chamber 6 of the auxiliary duct 2 for isenthalpic cooling, then heated in the heat exchanger 3 and discharged into the atmosphere through the outlet 11,

. An adjustable valve, 15 at the same time closes the overflow duct 16.

The second mode of operation.

Main outdoor air flow

through the inlet 7, the filter 17 and the disconnected additional heater 12 is fed into the irrigation chamber 6 of the auxiliary duct 2 for isenthalpic cooling, enters the heat exchanger 3, heats up and then through the bypass duct 16 enters the main heater 9, where air can be heated if necessary additionally, after which the intake air through the outlet 10 is supplied to the consumer.

The adjustable valve at the same time blocks the entrance 13 of the main heater 9.

Extra air flow through inlet 4 of the supply air duct? 1 and the filter 18 is fed to the heat exchanger 3, cooled without changing its moisture content, passes through the shut-off irrigation chamber 8 and then is emitted into the atmosphere.

The third mode of operation.

Main outdoor air flow

through inlet 7 and filter 17

enters the additional heater 12, heats up, then iso5

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enthalpy is cooled in the irrigation chamber 6, is fed into the heat exchanger 3 and is additionally heated.

Bypass duct 16, the air enters the main heater 9, which can optionally be further heated, and then through outlet 10 is supplied to the consumer.

The auxiliary stream of outside air is treated similarly to the second mode of operation.

Claims (1)

Claim An air treatment device containing intake and auxiliary air ducts connected in countercurrent to a regenerative rotating heat exchanger, the inlet inlet duct communicating with the atmosphere, the inlet of the auxiliary duct connected to the irrigation chamber communicated through / 25 an inlet duct with the atmosphere, in the supply air duct, behind the regenerative heat exchanger, successively along the air flow are an additional ⁵ irrigation chamber and a heater, the output of which is in communication with the room, and the output of the auxiliary duct with the atmosphere, that, in order to increase efficiency, the device further comprises a nozzle mounted in the inlet duct optional auxiliary heater _15, the heater core inlet and outlet in auxiliary zduhovoda further SET * · Lena adjustable valves, the inlet, the main heater is further communicated via an appropriate controllable valve with the atmosphere, and the outlet duct by means of an auxiliary overflow duct - to the input of the main heater.