JPH10325696A - Cross flow type heat exchanging tower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cross flow type heat exchanging tower which enables collecting of rainwater or the like that has entered the heat exchanging tower from an exhaust hole simply and positively by installing eaves inside an eliminator. SOLUTION: A cross flow type heat exchanging tower is constructed by providing a lower part water tank 41 which collects a cooling medium or heating medium (b) right under a filling material layer 11 arranged in the heat exchanging tower 1, and by providing a rainwater tank 42 which collects rainwater or the like (a) that has entered right under an air chamber 12 from an exhaust hole 3. In the cross flow type heat exchanging tower, eaves 14 are attached to the inside of an eliminator 13 which is interposed between the filling material layer 11 and the air chamber 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cross-flow type heat exchange tower (hereinafter referred to as "heat exchange tower") for exchanging heat between a refrigerant or a heat medium by air, and more particularly, to a heat exchange tower which enters a tower from an air discharge port. In order not to mix the rainwater etc.
Easy by attaching eaves inside the eliminator,
The present invention also relates to a heat exchange tower capable of reliably collecting the heat.

[0002]

2. Description of the Related Art Conventionally, a heat exchange tower has been designed to exchange heat by contacting air introduced from a horizontal direction while a refrigerant or a heat medium flows down between filler layers. Is discharged from an exhaust port provided above the tower body. Therefore, at the time of rainfall or snowfall, on the contrary, rainwater or the like may enter the tower from the air exhaust port and be mixed into the refrigerant or the heat medium.

As described above, when rainwater or the like enters the tower,
Since the antifreeze or the like added to the refrigerant or the heat medium is diluted and its concentration decreases, troubles such as freezing of the circulation path may occur, which may hinder the operation of the heat exchange tower. Therefore, as one of the measures to prevent the entry of rainwater or the like, a duct bent in an elbow shape is attached to an exhaust port provided above the heat exchange tower to prevent intrusion of rainwater or the like. When the wind direction coincided with the bending direction of the duct, rainwater and the like sometimes entered the tower from the duct.

In Japanese Utility Model Publication No. 29430/1994,
A lower water tank for collecting the heat-exchanged refrigerant or heat medium is arranged below the tower body, and a liquid pan is provided directly below the exhaust port from which the heat-exchanged air is discharged so as to cover the water surface of the lower water tank. There has been proposed an arrangement in which rainwater or the like that has entered through an exhaust port is collected by the liquid receiver and discharged from the tower body.

However, since the heat exchange tower has a two-stage structure in which a liquid tray for collecting rainwater and the like is disposed above a lower water tank for collecting a refrigerant or a heat medium, the production cost is low. When cleaning or inspecting the lower water tank, there is a problem that the cleaning operation and the inspection operation cannot be performed smoothly because the upper liquid pan is in the way.

Further, Japanese Patent Application Laid-Open No. 9-72678 discloses that
There has been proposed an apparatus in which a lower water tank for collecting a heat-exchanged refrigerant or a heat medium is provided directly below a filler, and a rainwater tank for collecting rainwater or the like entering from an exhaust port is provided directly below an air chamber. However, even if the lower water tank and the rainwater tank are provided as described above, if rainwater or the like entering from the exhaust port adheres to the eliminator installed to prevent carryover and flows down, the refrigerant or the lower part of the eliminator There is a problem that it becomes difficult to separate the heat medium from rainwater and the like.

Therefore, as means for solving the above-mentioned problems of the prior art, that is, means for reliably separating the refrigerant or the heat medium from rainwater, etc., as shown in FIG. The eliminators 53 and 54 having a double structure may be provided between the filler layer 51 of the exchange tower 5 and the air chamber 52. However, such a structure increases the manufacturing cost and increases the pressure loss. However, there is a problem that the equipment cost increases, for example, the motor capacity must be increased.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the gist of the present invention is to collect a refrigerant or a heat medium just below a filler layer disposed in a heat exchange tower. In the heat exchange tower provided with a lower water tank that collects rainwater and the like that has entered from the exhaust port directly below the air chamber, the heat exchange tower is provided inside the eliminator interposed between the filler layer and the air chamber. And a heat exchange tower provided with an eaves.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. 1 is a longitudinal sectional view showing one embodiment of the present invention, FIG. 2 is a partial longitudinal sectional view showing a use state of the present invention, and FIG. 3 is composed of a lower water tank and a rainwater tank used in the present invention. The water receiving plate is shown in a perspective view.

As shown in FIG. 1 and FIG. 2 in a longitudinal sectional view, and FIG. 3 in a perspective view, a refrigerant or a heat medium is provided immediately below a filler layer 11 disposed in a heat exchange tower 1. In the heat exchange tower 1 provided with a lower water tank 41 for collecting b, and a rainwater tank 42 for collecting rainwater or the like which has entered from the exhaust port 3 directly below the air chamber 12, And air chamber 1
An eaves body 14 is provided inside the eliminator 13 interposed between the two.

According to the present invention, the rainwater or the like a flowing down from the exhaust port 3 into the tower can be reliably guided to the rainwater tank 42 and collected, and the predetermined concentration of the refrigerant or the heat medium b is maintained. In addition, the stable operation of the heat exchange tower 1 becomes possible, and the eaves 14 attached to the inside of the eliminator can be reduced in pressure loss in combination with the simple structure.
Effects such as low equipment and operation costs can be obtained.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the present invention comprises a heat exchange tower 1 in which a packing layer 11 in which a large number of packing materials are stacked is loaded on both sides of a heat exchange tower 1, and a louver is provided on a side wall close to the packing layer 11. 16
Is provided. Filler layer 1
An upper water tank 2 is provided above 1, and a coolant or a heat medium b can be sprayed on the filler layer 11 from a number of small holes provided in a bottom wall of the upper water tank 2.

An air chamber 12 is provided between the filler layers 11, 11 which are installed opposite to each other in the heat exchange tower 1, and between the air chamber 12 and the filler layer 11. Is provided with an eliminator 13, and an eaves body 14, which is a feature of the present invention, is attached to the air chamber 12 side of the eliminator 13. The eaves body 14 is configured by arranging a predetermined number of eaves-shaped fins 15 in the vertical direction inside the eliminator 13, and the fins 15 are attached to the eliminator 13 by integral molding, adhesive fixing, or fitting. An appropriate method such as a built-in type can be adopted.

An exhaust port 3 is provided above the air chamber 12.
The fan 32 is driven by a motor attached to the exhaust port 3, and the exhaust air A in the heat exchange tower 1 is
-2 is discharged in the direction of the arrow from the exhaust port 3, and at the same time, the introduced air A-1 flows in the direction of the arrow from the air inlet 17.

On the other hand, below the heat exchange tower 1, a water receiving plate 4 is disposed so as to straddle each of the filler layers 11, 11 and below the air chamber 12. And the air chamber 1
2, a partition plate 411, as shown in FIG.
411 is erected and divided into a lower water tank 41 and a rainwater tank 42. That is, in the water receiving board 4 divided by the partition plate 411, the lower water tank 41 is provided directly below the filler layer 11, and the rainwater tank 42 is provided directly below the air chamber 12.

A drain pit 412 is provided at the bottom of the lower water tank 41, and the refrigerant or heat medium b collected in the lower water tank 41 is connected to a pipe 41 connected to the drain pit 412.
3 to a load section (not shown) such as a condenser,
The refrigerant or the heat medium b heat-exchanged at the load portion is circulated and supplied to the upper water tank 2. Further, a drain port 421 is provided at the bottom of the rainwater tank 42, and the drain port 42 is provided.
From 1, rainwater or the like a that has entered the exhaust port 3 and then collected in the rainwater tank 42 is discharged out of the tower.

Accordingly, when the refrigerant or the heat medium b is sprinkled from the upper water tank 2 of the heat exchange tower 1, the refrigerant or the heat medium b flows into the air inlet 17 from the air inlet 17 when flowing down the filler layer 11. After the heat exchange at -1, the exhaust air A-2 collected in the lower water tank 41 located immediately below the filler layer 11 and subjected to heat exchange passes through the air chamber 12, and is discharged from the exhaust port 3 to the tower 3. It is discharged outside. The concentration of the refrigerant or heat medium b circulating in the tower needs to be maintained at a constant level so as not to be diluted and increased by mixing of rainwater or the like a that has entered from the exhaust port 3.

Therefore, since the heat exchange tower 1 of the present invention has the above-described configuration, as shown in FIG. 2, rainwater or the like a that has entered the tower through the mouth wall 31 of the exhaust port 3 as shown in FIG. Fins 15 of the eaves 14 attached inside the eliminator 13
The water flows down in the direction of the arrow, and is surely guided into the rainwater tank 42 without being mixed into the lower water tank 41 of the water receiving plate 4, and the rainwater and the like a collected in the rainwater tank 42 are discharged out of the tower. . Therefore, the refrigerant or the heat medium b circulating in the tower can maintain a predetermined concentration, so that the stable operation of the heat exchange tower 1 can be achieved.

Further, since the eaves 14 provided inside the eliminator 13 in the present invention has a simple structure provided with a small number of fins 15, the pressure loss during the operation of the heat exchange tower 1 is small, and In addition, the production cost can be reduced, for example, by reducing the capacity of the motor for driving the fan 32. Further, since the lower water tank 41 and the rainwater tank 42 constituting the water receiving plate 4 have a simple structure separated by the partition plate 411, the cleaning operation and the inspection operation can be performed easily and smoothly. .

[0020]

Since the present invention has the above-described structure, the following effects can be obtained. That is, according to the present invention, rainwater or the like flowing down from the exhaust port into the tower can be reliably guided to the rainwater tank and collected, and the predetermined concentration of the refrigerant or the heat medium is maintained, so that the heat exchange tower is stable. Operation becomes possible, and the eaves attached to the inside of the eliminator have a simple structure, which reduces the pressure loss, thus reducing equipment costs and operating costs. To play.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the invention in longitudinal section.

FIG. 2 is a partial longitudinal sectional view showing a use state of the present invention.

FIG. 3 is a perspective view showing a water receiving plate composed of a lower water tank and a rainwater tank used in the present invention.

FIG. 4 shows an example of the prior art in a partial longitudinal sectional view.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 heat exchange tower 11 filler layer 12 air chamber 13 eliminator 14 eaves body 15 fin 16 louver 17 air inlet 2 upper water tank 3 exhaust port 31 mouth wall 32 fan 4 water receiving board 41 lower water tank 411 partition plate 412 drain pit 42 rain Water tank 421 Drain outlet A-1 Inlet air A-2 Discharge air a Rainwater, etc. b Refrigerant or heat medium

Claims (1)

[Claims] 1. A lower water tank for collecting a refrigerant or a heat medium is provided immediately below a filler layer disposed in a heat exchange tower.
Immediately below the air chamber, in a cross-flow heat exchange tower provided with a rainwater tank that collects rainwater and the like that has entered from an exhaust port, an eaves body is provided inside an eliminator interposed between the filler layer and the air chamber. A cross-flow heat exchange tower, which is attached.