JPS5923994Y2 - cooling tower water sprinkler system - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water sprinkler device suitable for a rectangular countercurrent type cooling tower.

Conventionally, in rectangular countercurrent type cooling towers, a fixed spray type using a spray nozzle or the like has been mainly used as a water sprinkler device due to plane constraints.

This fixed spray type has a complicated structure, has a large amount of water carryover, requires an eliminator, and is expensive.

In addition, if a rotating type with a simple structure and less water carryover is used, there is no need for an eliminator, but with a square type, water is only sprayed over the area within the rotating range, which significantly reduces cooling efficiency and results in a large tower body. It has the disadvantage of high cost.

In view of this, the present invention was devised to combine a rotary water sprinkling method and a fixed water sprinkling method to create a simple structure that increases water sprinkling efficiency and improves heat exchange even in a rectangular countercurrent cooling tower. It is.

The present invention will be explained below based on the illustrated embodiments.

In the figure, reference numeral 1 denotes a rectangular countercurrent type cooling tower having a desired capacity, and the cooling tower 1 is filled with one or more stages of desired fillings 2.

Reference numeral 3 denotes a blower installed above the filling, which forcibly exchanges heat with cooling air when the cooling water sprayed from the water nozzle drips into the filling.

As shown in Figures 1 and 2, the water nozzle is connected to the top of the cooling tower through a rotary swivel 5 at the tip of a return pipe 4 through which the heated cooling water is returned to the cooling tower through heat exchange with a condenser or the like. 2 to 3 projecting horizontally and radially outward from the tube 4.
More than one water sprinkling pipe 6 is rotatably provided, and a large number of water sprinkling nozzle holes are drilled on the lower surface side of each water sprinkling pipe 6 to constitute a rotary nozzle, and the rotary nozzle is provided with Forms a fixed water spray nozzle.

This fixed water sprinkling nozzle has four fixed water sprinkling pipes 7 installed around the outer periphery of the return pipe 4 so as to spray water only on the upper part of the filling that cannot be sprayed with the above-mentioned rotary water sprinkling nozzle, that is, in the case of a square cooling tower, only above the four corners of the filling. The cooling tower is installed horizontally protruding toward the four corners of the cooling tower, and a large number of sprinkler nozzle holes are drilled in the lower surface of the tip of each of these sprinkler pipes.

Therefore, when using the present invention, a rotary water spray nozzle with high water sprinkling efficiency is used as the main component, and a fixed water spray nozzle is used to spray water on the squares of the rectangular cooling tower where water cannot be sprayed by the rotary nozzle. By combining both type water spray nozzles, the fourth
Water can be sprayed uniformly over the entire surface of the filling without the need for a large number of water nozzles as shown in the figure, and without the area where water cannot be sprayed as shown in Figure 3, and the structure is simpler and cooling compared to the conventional fixed type. It has the advantage of reducing water carryover and eliminating the need for an eliminator, which can be manufactured at low cost.

The water sprinkler of the present invention can also be used as a water sprinkler for cross-flow type cooling towers other than the square counter-flow type.

[Brief explanation of drawings]

Figure 1 is a longitudinal front view showing the sprinkler system of the cooling tower of the present invention, Figure 2 is a plan view of the same, Figure 3 is a plan view of a square rotating type sprinkler cooling tower, and Figure 4 is a conventional fixed sprinkler type cooling tower. FIG. 3 is a plan view of the tower. 1... Cooling tower, 2... Filling, 3
...Blower, 4...Return pipe, 5...
... Rotating swivel, 6... Water pipe, 7...
...Fixed water pipe.

Claims (1)

[Scope of utility model registration request] A cooling tower water sprinkling device comprising a rotating water sprinkling nozzle above a filling in a rectangular tube counterflow type cooling tower, and a fixed water sprinkling nozzle provided in an area where water cannot be sprayed by the rotary water sprinkling nozzle.