RU2002186C1 - Ejector-ture cooler - Google Patents

Abstract

Usage: in the circulating water supply systems of high productivity of the chemical, metallurgical and energy complexes. SUMMARY OF THE INVENTION In a tower in the form of a regular polygon in an air inlet ok 2, no nozzles are mounted in several rows at different angles to the radius of the cooler and to the horizon, as well as at different distances from the edge of the cooler pool. The upper nozzles are horizontal and are directed along the radius-vector to the center cooler towers, and nozzles of the additional lower row are located at the edge of the pool and are directed at an angle to the radius vector and horizontally, their outlet openings are oriented upwards and above the horizontal visor into the light vo set doulovitel .s central opening in plan form yuschim repeated yl visor 2

Description

The invention relates to contact heat and mass transfer apparatuses used in large-capacity circulating water supply systems of chemical, metallurgical and energy complexes.

Known cooling towers containing a tower, on the side surface of which there are air inlet windows. Air enters the tower either through the tower’s natural thrust, or through the operation of the fans,

Such cooling towers are bulky and expensive, they often fail to irrigate; and for fan cooling towers, the fan is unreliable and bulky.

An ejection cooler is known, including a tower with air inlet windows formed by shields, as well as nozzles mounted on a manifold sized opposite the windows.

The main disadvantages of such a cooler are the large outflow of fluid 143 of the apparatus and the use of only the longitudinal sides as workers.

The closest in technical essence and the achieved result to the proposed cooler is an ejection cooler containing a pool, a tower placed above it with a cross section in the form of a regular polygon, an air inlet window with vertical and horizontal shields made about the bottom of the tower around its entire perimeter, the collector is cooled liquid communicated with a number of nozzles horizontally mounted in the air inlet window and a horizontal visor located in the central part of the tower.

A drawback of such a cooler is the reduced cooling efficiency due to the fact that a large amount of liquid is excluded from the heat and mass transfer processes on the internal vertical partitions installed inside the polygonal tower to prevent lateral dropping of droplets.

The purpose of the invention is the intensification of heat and mass transfer.

This goal is achieved by the fact that the air cooler is equipped with an additional series of nozzles located below the horizontally mounted nozzles, and a water trap located above the horizontal visor and made with a central opening repeating in plan the shape of the latter, nozzles of the additional series are installed at an angle to the horizontal and at the same angles to the radius vectors passing

Zashni center, their outlet openings are oriented upwards and located at the pool edge, and horizontally mounted nozzles are displaced to the periphery relative to nozzles of the additional series and are oriented along the indicated radius vectors.

In FIG. 1 is a bottom plan

cooler; in FIG. 2 - its cross section.

The ejection cooler comprises a heated water pipe 1 and a collector of a cooled liquid 3 connected through a valve 2. On the collector 3 there is an upper row of nozzles 4 mounted horizontally. Combs 5 are connected to it with a lower additional row of nozzles 6 located below the nozzles 4.

The walls 7 form a cooler tower with a cross section in the form of a regular polygon, in the lower part of which there is a chilled water pool 8. Around the perimeter of stench 7 there is an air inlet window 9, the lower part of which is formed by a horizontal shield 10, and the top by a shield 11. The shield 11 is installed on the inner side of the walls 7. The window 9 is divided by vertical radial wind partitions 12. Inside the cooler in the central part of the tower there is a vertical one hundred to 13, ending with a horizontal visor 14. Above it is installed a water trap 15, made

with a central opening repeating in plan the shape of the visor 14.

In this case, the nozzles 6 of the additional row are installed at an angle to the horizontal and at the same angles to the radius vectors passing through the center of the tower, and their outlet openings are oriented upward and located at the edge of the pool 8. Horizontally mounted nozzles 4 of the upper row (0) are shifted to the periphery relative to the nozzles b of the additional series and are oriented along the indicated radius vectors (a 0).

The cooler operates as follows. Heated liquid sprayed

nozzles 4 and 6 so that the general spray covers window 9. this ensures a maximum ejection coefficient (Uo 1500) of the outside air. For this, the main part (upper row d)

nozzles 4 are carried out at a certain distance C from the edge of the cooler pool, which increases the length of the free flame, and rises to a certain height Hi, which allows you to shift the right edge of the shield 11 upwards and accordingly increase the area of the air inlet window 9. Due to the horizontal arrangement of the upper row the nozzles 4 spray them toward the center, entraining air. Radially mounted vertical wind walls 12 prevent the droplets from blowing from the cooler with strong gusts of air.

Since the nozzles 6 of the lower row are set at certain angles fri, 01 to the horizontal and to the radius vectors passing through the center of the tower (these angles are determined by the root opening angle of the nozzle plume yi, the distance L.2 from the nozzles to the edge of the pool, by ejection coefficients Uo and other factors), their droplet-air flow swirls the flow from the upper nozzles 4. This prevents the droplets from dropping out of the pool 8. The nozzles 6 of the lower row are mounted on the edge of the pool (L2 0) and are concentrated on the right parts of the section (for solid angle az.). This prevents the left peripheral droplets from reaching the cooler outflow.

The air stream with small drops rises upward, is reflected from the horizontal visor 14, passes the water reservoir 15 and is released into the atmosphere

5 High speeds (V 5 f / s) of air passing through the water trap will ensure that it is cleaned of mechanical drops.

Thus, due to the absence of vertical partitions inside the cooler

0 all droplets generated by the nozzles participate in heat and mass transfer.

The set of distinctive features of the proposed cooler can significantly increase its effectiveness

5 by involving additional drops of water in heat and mass transfer.

(56) Makarov V.M., Belichenko Yu.P. and Galustov B.C. Rational use and

0 water purification at engineering enterprises. M .: Engineering, 1988, p. 51-63.

USSR copyright certificate No. 1020744, class F 28 C 1/00, 1981.

5 Copyright certificate of the USSR N 1695117, cl. F28C 1/00, 1990.

Claims (1)

The claims EJECTIVE COOLER, containing a pool, a tower placed above it with a cross section in the form of a regular polygon, an air inlet window with vertical and horizontal shields, made in the lower part of the tower along its entire perimeter, a cooled liquid manifold in communication with a number of nozzles horizontally mounted in the air duct window and a horizontal visor located in the central part of the tower, characterized in that, in order to intensify heat and mass transfer, it is provided with an additional series of nozzles, - AT 5,  placed below horizontally mounted nozzles, and a water trap located above a horizontal visor and made with a central opening repeating in plan the shape of the latter, nozzles of an additional row are installed at an angle to the horizontal and at equal angles to the radius vectors passing through the center of the tower their outlet openings are oriented upwards and located at the edge of the pool, and horizontally mounted nozzles are displaced to the periphery relative to nozzles of the additional series and are oriented along associated position vectors Top nozzle Lower nozzle thirteen