JPS62233687A - Heat transfer device - Google Patents

Abstract

PURPOSE:To prevent accumulation of condensed water on fins and avoid reduced heat transfer performance by installing a vertical tube provided on a heating section and fins which are provided horizontally on the tube with an inclination to them so that both have their sides toward a device user and their left or right titled downwards. CONSTITUTION:Liquid 9 which has a tendency to evaporate and sealed in a heating section 4 evaporates by heating and passes through a steam riser tube 7 and enters a cooling section 1 to become liquid again and flows through a liquid downcomer 8 and returns to the heating section 4 to complete on recy cling. A vertical tube 5 which constitutes the heating section 4 and fins 6 for the tube 5 provided horizontally to the tube 5 are installed so as to be inclined downwards to the upstream side of the wind flow or to either the left or the right. The condensed water accumulated on the fins 6 flows out the thereby by its own weight and it is guided by a guide plate 10 and discharged to a drain. With this constitution the heat transfer performance does not fall even in very moist environment.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a heat transfer device that utilizes boiling and condensation of a liquid.

(b) Conventional technology Next, a conventional heat transfer device of this type is shown in FIGS. 4 to 6.
This will be explained with reference to the figures.

heating! B4 includes a vertical tube 5 and horizontal fins 6 that intersect with the tube 5, and the cooling section l includes a vertical tube 2 and horizontal fins that intersect with the tube 2. It has 3 fins and 1
Both parts 4.1 are connected to each other by a vapor riser pipe 7 and a liquid downcomer pipe 8 to form a closed container. In the airtight container, an amount of an evaporative liquid (for example, 7 Leon, ammonia, alcohol, water, etc.) 9 is sealed in an amount that can be stored in the heating section 4.

When heat is applied from the outside of the heating section 4, the liquid 9 inside the heating section 1
receives the heat and boils, and the generated vapor rises in the vapor rise f7 due to the vapor pressure difference and reaches the cooling section 1, where it releases the latent heat of condensation and returns to liquid 9, and the liquid 9 descends into liquid. It returns to the heating section 4 through the tube 8. Such a cycle is repeated one after another.

(C) Problems to be Solved by the Invention In the heat transfer device described above, the air that provides heat from outside the heating section 4 contains a large amount of moisture.

Water droplets condense on each fin 6. Since each fin 6 is horizontal, water droplets accumulate between the fins, reducing the heat transfer area and lowering the heat transfer coefficient.

The water inside the duct scatters beyond the discharge part, making it difficult to collect it.

The present invention has been made in view of the above-mentioned difficulties, and it is an object of the present invention to provide a heat transfer device in which heat transfer performance does not deteriorate even in a humid atmosphere and in which dew condensation water can be easily recovered.

(d) Means for Solving the Problems In order to achieve the above objects, the present invention comprises a heating section and a cooling section each having a vertical tube and horizontal fins extending over the tube. , steam riser and liquid F
A heat transfer device is connected to the sieve tube to form a closed container, and a heat transfer device containing an evaporative liquid that can be stored in the heating section is placed in the container.

The heating part is installed so as to be inclined downwardly toward the front or either toward the front or to the left or right with respect to the direction of the wind flow.

(e) Effect The condensed water that accumulates on the fins flows out smoothly due to its own weight.

(f) Example One example of the present invention will be explained with reference to FIG. In this figure, the same components as in FIG. 4 are represented by the same symbols.

The heating unit 4 is installed so as to be inclined downward toward the front with respect to the direction of the wind flow (direction of arrow W). Note that the cooling section 1 is also inclined similarly to the heating section 4. The condensed water collected on the fins 6 in the heating section 4 flows forward under its own weight and does not scatter into the duct behind the discharge port.

Figures 2 and 3 show other embodiments of the present invention in which the heating unit 4 is installed at a downward slope to the front and to the left with respect to the direction of the wind flow. Components that are the same as those in FIGS. 6 through 6 are denoted by the same reference numerals.

A guide plate 10 is provided inside the vessel on the inclined side of the heating section 4, and a drain pan 11 is provided below. A drain valve 12 is dammed to a drain pipe 13 connected to the bottom of the drain pan 11.

The condensed water flows on the fins 6 toward the front and the left, and falls at only one place. The fallen condensed water falls along the guide plate 10 and collects in the drain pan 11. The accumulated condensed water can be collected by opening the drain valve 12.

Note that the heating unit 4 may be inclined downward toward the front and to the right with respect to the direction of the wind.

(g) Detailed Description of the Invention According to the present invention, a heat transfer device can be obtained in which heat transfer performance does not deteriorate even in a humid atmosphere and dew condensation water can be easily recovered.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the present invention, FIG. 2 is a front view showing another embodiment of the present invention, FIG. 3 is a layout view of FIG. 2, and FIG. 4 is a conventional Fig. 5 is a front view showing the heat transfer device, Fig. 5 is a right side view of Fig. 4, and Fig. 6 is a perspective view of Fig. 4.

Claims (2)

[Claims] (1) A heating section and a cooling section each having a vertical tube and horizontal fins intersecting the tube are connected to each other by a steam riser pipe and a liquid downfall pipe to form a closed container. , a heat transfer device in which an amount of evaporative liquid that can be stored in the heating section is sealed, the heating section being installed with the heating section tilted downward toward the front with respect to the direction of the wind flow. Device. (2) A heating section and a cooling section each having a vertical tube and horizontal fins intersecting the tube are connected to each other by a steam riser pipe and a liquid downfall pipe to form a closed container. , a heat transfer device in which an amount of evaporative liquid that can be stored in the heating section is sealed, and the heating section is installed with the heating section tilted downward toward the front and either to the left or right with respect to the direction of the wind flow. Heat transfer device.