JPH0624681Y2 - Heat exchanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a heat exchange device for cooling a gas or a liquid by exchanging heat with the atmosphere.

[Prior Art] Heat exchange devices for exchanging heat with the atmosphere to cool a gas or a liquid are widely used in absorption refrigerators, heat pumps, and the like. There are two ways to do.

In order to increase the amount of heat radiation in the above method, there is adopted a means of enlarging the fins, increasing the number of fins, or using a large fan to increase the air volume of the fan.

[Problems of the prior art] Therefore, there is a drawback that the heat exchange device becomes large.

Therefore, there is a proposal to reduce the size of the heat exchange device by spraying water on the fins of the heat exchange device and using the latent heat of evaporation of this water to enhance the endothermic effect.

However, in this proposal, as shown in FIGS. 3 and 4, a jet nozzle 3 for jetting water in a conical shape is provided on the side of the heat exchanger body 1 of the heat exchange device, and the number of the nozzles 3 is minimized. The distance L between the nozzle 3 and the fin 2 of the vertical pipe 4 through which the object to be cooled passes is set to be large, and the nozzle 3
Has a large back pressure. For this reason, there is a drawback that the large distance L is inevitably inevitably increased and a large pump is required because the back pressure is increased.

The present invention is proposed in view of such a point, and an object thereof is to propose a heat exchange device which can be downsized and which can disperse water as uniformly as possible.

[Means for Solving the Problems] As a means for solving the above problems, the present invention proposes a heat exchange device having the following configuration.

In a heat exchange device in which a cooling target is passed through a vertical pipe, water is sprayed on fins attached to the vertical pipe, and the cooling effect is improved by utilizing latent heat of vaporization of the water, A heat exchange device, which is located diagonally below the heat exchanger body, and is provided with the water spray holes of the spray pipe upward with a slight inclination toward the heat exchanger body side.

In the above heat exchange device, the height of the jetted water can be adjusted by adjusting the back pressure of the water jetted from the spray pipe. As a result, the position of the water landing on the fins can be adjusted to make the spraying (wetting) uniform.

The fan may be forcedly ventilated to the heat exchanger body, and the position of the fan at this time needs to be located on the opposite side of the spray pipe in order to prevent the flow of jet water.

[Operation] A body to be cooled flows in the heat exchanger body, water is supplied to the spray pipe by a pump, and the water sprays from the fountain holes to land on the fins, wet the whole fins, and are exposed to evaporation latent heat. Cool the cooling body.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention, in which 1 is a heat exchanger body, 2 is a fin, 4 is a vertical pipe through which an object to be cooled passes, and 5 is an obliquely lower portion of the heat exchanger body 1. The water supply port 6 of the spray pipe 5 is connected to a water supply pump (not shown).

Reference numeral 7 denotes a fountain hole provided in the spray pipe 5, and the fountain hole 7 is provided in a large number with some inclination toward the fin 2 side as shown in θ in FIG. It is designed to land on the fin 2.

Further, the height of the jetted water can be adjusted by the pump pressure, and by this adjustment, the fins 2 can be evenly wetted according to the height of the fins.

[Effects of the Invention] As described above, according to the present invention, the spray pipe is arranged diagonally below the heat exchanger body, and water is sprayed obliquely upward from the spray pipe to land on the fins. May be close to the fins, and it is possible to make the size smaller by this amount, and to provide a large number of fountain holes for the spray pipes, and to adjust the back pressure to evenly wet the fins and improve efficiency. You can Further, since the back pressure is small, the pump can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat exchange device according to the present invention, FIG. 2 is a side view, and FIGS. 3 and 4 are explanatory views of a heat exchange device utilizing latent heat of vaporization of water. 1 ... Heat exchanger body 2 ... Fins 3 ... Nozzle 4 ... Vertical pipe 5 ... Spreading pipe 6 ... Water inlet 7 ... Fountain hole

Claims (2)

[Scope of utility model registration request] 1. A heat exchange device in which a cooling target is passed through a vertical pipe, water is sprayed on fins attached to the vertical pipe, and the latent heat of vaporization of the water is utilized to improve the cooling effect. A heat exchange device in which a water spray pipe is located diagonally below the heat exchanger body, and the water spray holes of the spray pipe are provided slightly upward on the heat exchanger body side so as to face upward. 2. The heat exchange device according to claim 1, wherein the back pressure of water ejected from the spray pipe is adjustable.