SU1488672A1 - Arrangement for indirect evaporative cooling of air - Google Patents

Description

The invention improves the efficiency of the installation for indirect evaporative air cooling. The housing 1 is provided with a pallet 2 with liquid. Air duct (BB) 6 is made of moisture-proof heat conductor2

of which material is installed in case 1 with the formation of a spiral channel (K) between them 7. The coils 8 and 7 are divided among themselves. Spiral K 10 of the main air flow is located along axis BB 6, to-ry communicated at inlet 11 with port 3 at outlet 12 -CK 10 and 7. Output 7 is connected to port 13 by outlet 13. The cochlear flow chamber 15 is located between outlet 12, BB 6 and input 14 to 7,

BB 6 is located horizontally. In the lower part of the partition 9, overflow openings 16 are made with the possibility of communicating the turns 8 between themselves and with the pallet 2. The partition 9 is filled with a moisture-proof heat-conducting material ..2 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 air cooling.

Figure 1 presents the schematic diagram of the installation for indirect-evaporative air cooling; figure 2 - section aa in figure 1. d

Installation for. indirect-evaporative air cooling comprises a housing 1 equipped with a pallet 2 with a liquid, a tangential inlet pipe 3 of the total air flow and 15 outlet pipes 4 and 5 of the main and auxiliary air streams.

The air duct 6 is made of a moisture-proof heat-conducting material and installed in the housing 1 with the formation of a spiral channel 7 between them, the turns 8 of which are separated by a spiral partition 9,

Thermally insulated channel 10 of the main air flow is located along ^r 25 25 of the axis of the duct 6, the latter being communicated at inlet 11 with a branch pipe 3 of the general air flow, at outlet 12 with thermally insulated. 10 and 7 spiral channels, and the latter is supplied with 33 keys by the remote sensing output to the nozzle 5 of the auxiliary air flow.

Between the outlet 12 of the duct 6 and the inlet 14 of the spiral channel 7 placed cochlear flow chamber 15.. , '' '

The air duct 6 is located horizontally, in the lower part of the spiral partition 9, the bypass holes 16 are made with the POSSIBILITY OF COMMUNICATION dd turns 8 of the spiral channel 7 between themselves and the tray 2, and the spiral partition is made of moisture-proof heat-conducting material.

At the exit of the flow volute in the spiral channel 7, a partition 17 can be located in the lower part, and a level regulator 18 is installed in the base 2.

The installation works as follows. ·

General air flow fan,

(not shown) is injected through the inlet 3 of the total air flow into the duct 6, where it makes a spiral movement and is cooled as a result of heat exchange with a humidified auxiliary air flow flowing in the spiral channel 7,

At the outlet 12 of the air duct '6, the total air flow is divided into the main and auxiliary streams, the first of which is fed to the consumer through the heat-insulated channel 10, and the second is directed to the spiral channel 7 through the flow-through cochlear chamber 15.

With the passage of the cochlear-shaped chamber 15, an additional spiral-like movement is given in the direction opposite to the direction of movement of the total air flow in the air duct 6, after which the auxiliary air flow enters the spiral channel 7,

With the passage of the auxiliary air flow over the partition 17 of the chamber 15 and over the lower part of the coils 8 of the spiral channel 7, partially filled through the bypass holes 16 with liquid from the pallet 2, the fluid is entrained by the flow and sprayed onto the inner surface of the spiral channel 7.

Upon contact with the auxiliary air stream moisturized inner surface therein helical channel 7 in channel I melkoraspylyaemymi 7 liquid particles occurs vaporization of the latter with simultaneous cooling while roaming ^- the duct 6 total air flow.

After passing through the spiral channel 7, the auxiliary air stream is vented to the atmosphere.

The liquid level in the lower part of the turns 8 of the spiral channel 7 is maintained by filling the liquid from the tray 2 through the bypass openings 16, in which the required level is regulated by means of the regulator 18. /

Claims (1)

Claim Installation for indirect evaporative air cooling, comprising a housing equipped with a tray with. fluid, tangential inlet pipe of the general air flow and inlet pipes of the main and auxiliary air streams, air duct made of moisture-penetrable heat-conducting material and installed in the housing with formation of a spiral channel between them, the turns of which are separated from each other 1488672 a spiral partition, a thermally insulated channel of the main air flow, located along the axis of the duct, the latter communicated at the inlet with the pipe of the common flow, air, at the outlet with the heat-insulated and spiral channel, and the latter is connected to the outlet of the auxiliary air stream, characterized in that , in order to increase cooling efficiency, installation is optional contains a cochlear flow chamber located between the duct outlet and the inlet of the spiral duct; the duct is located horizontally, the bypass holes are made in the lower part of the spiral partition with the ability to communicate the turns of the spiral duct between themselves and the tray, and the spiral partition is made of moisture-proof heat-conducting material.