SU1476256A1 - Air cooler - Google Patents

Abstract

The invention allows to regulate the flow of water for irrigation and to change the efficiency of air cooling in ventilation and air conditioning systems. The bundle of heat exchange tubes (T) 2 of the housing 1 is placed in the layer of the nozzle 3 of dispersed material. Separator 4 is installed above T 2. Perforated mesh 5 is placed under T 2. Water distributor 6 with nozzle 7 and fan with air duct 9 are connected to the lower part of housing 1. Water distributor 6 is designed as a tank 10 with a float regulator of water level and a pulse tube 12 The tube 12 communicates the container 10 with the center of the duct 9 and is directed against the air flow. The nozzle 7 is located in the area of the nozzle 3. The container 10 is provided with additional impulse tubes 13, which connect it with the housing cavity in different parts in height. 1 hp ff, 2 ill.

Description

FIG. one

The invention relates to heat exchange equipment and can be used in ventilation and air conditioning systems, in refrigeration devices and contact heat and mass transfer devices.

The purpose of the invention is to regulate the water supply for irrigation and the change in cooling efficiency.

FIG. 1 shows an air cooler; in fig. 2 - air cooler water distributor.

The air cooler includes a housing 1 with a bundle of heat exchange tubes 2 placed in a layer of nozzle 3 of available material, installed above the bundle of tubes 2, a separator 4, and under the bundle of tubes 2 a perforated grid 5, a water distributor 6 with a nozzle 7 and a fan 8 with an air duct 9. connected to the bottom of the housing 1.

The water distributor 6 is made in the form of a tank 10 with a float regulator 11 of a level therein and a pulse tube 12, which connects the tank 10 o to the center of the duct 9 and is directed against the air flow, with the nozzle 7 located in the area of the nozzle 3.

The container 10 is provided with additional impulse tubes 13, which communicate the container 10 with the cavity of the housing 1 in various parts of it in height. The container 10 is provided with a chamber 14 with a shut-off valve 15 and a water supply nozzle 16 connected to the water supply line 17 and a bypass line 18. The shut-off valve 15 is rigidly connected to the float regulator 11 by means of rod 19.

The pulse tube 13 is connected to the container 10 through the sleeve of the float regulator 11. The pulse tubes 13 are provided with taps.

The air cooler works as follows.

The fan 8 injects air into the duct 9, from where, through the holes in the perforated grid 5, air is supplied to the housing 1. The pulse tube 12 senses the dynamic pressure of the forced air and transfers it to the tank 10. Under the action of the latter, water from the tank 10 flows through the water distributor 6 1. Under the action of air pressure, the dispersed layer of the nozzle 3 together with the soda expands in the housing 1, forming a fluidized bed that washes the outer walls of the bundle of heat exchange tubes 2. In the separator 4, the air is cleaned from water droplets.

The initial filling of the chamber 14 with water is performed by opening the valve on the water supply line 17, and the initial filling of the container 10 is performed by opening the shut-off valve on the bypass line 18. After starting and bringing to mode, the shut-off valve on the line 18 is closed and the water is supplied automatically through the container 10. When it is filled with water, the float controller 11 rises, and the tons of hectares 19

five

0

0 5

five

0

five

0

with valve 15 open the passage of water through the chamber 14.

If the water supply exceeds the norm, the mobile bed height increases and a part of the water, having passed through the separator 4, flows into the impulse pipe 13 and forms a column of liquid, the pressure of which through the sleeve 20 is transferred to the float regulator (Fig. 2). The latter is released vertically, slipping along the inner surface of the sleeve, and transmits by means of cable 19 a similar force to the shut-off valve 15, which blocks the water supply from the chamber 14 to the container 10.

Water replenishment is stopped until the static pressure of the water column in the sleeve decreases. Water from the sleeve flows into the container 10 through the leakage between the outer surface of the float regulator 11 and the sleeve. When the height of the moving fluidized bed in the air cooler decreases, the static pressure of the liquid column in the liner decreases. Then, by means of Newtonian force, the float regulator 11 moves the pu 19 vertically upwards and opens the locking valve 15. Water from the chamber 14 enters the tank 10. Through the kinematic pressure of the air transferred to the air cooler 6 through the pulse tube 12 from the duct, water from the tank 10 goes for irrigation. In this way, regulation of the supply of water for irrigation is carried out.

If it is necessary to reduce the cooling efficiency, the valve 26 of the downstream impulse tube 13 is opened. Then, the fluidized bed height and efficiency are automatically reduced. If it is necessary to increase the efficiency, the acting impulse tube 13 is closed with a corresponding tap and the tap opens upward in terms of the impulse tube 13.

Claims (2)

1.Air cooler, comprising a housing with a bundle of heat exchange tubes placed in the nozzle layer of dispersed material, a separator installed above the tube bundle, and a perforated grid under the tube bundle, a water distributor with a nozzle and a fan with an air duct, connected to the bottom of the housing, characterized by that, in order to regulate the supply of water for irrigation and the change in cooling efficiency, the water distributor is made in the form of a tank with a float-operated water level regulator and a pulse tube communicating the tank with m of air duct and directed against the air flow, and the nozzle is located in the area of the nozzle. 2. An air cooler according to Claim 1, characterized in that the container is provided with additional impulse tubes communicating the container with the housing cavity in various parts in height. eleven