JPH04261977A - Melting process device - Google Patents

Abstract

PURPOSE:To process melting of the snow or the snow ice accumulated on the surface of a heat exchanger plate efficiently by utilizing for snow melting, freeze proofing, and the like of a roof, a road, and the like in a cold district, and averaging the temperature distribution on the surface of the heat exchanger plate. CONSTITUTION:A heat transmitter 1 composed of an evaporation member in which an operating fluid is sealed, and a condensation members 1b communicating to the inside of the evaporation member and extending in a melted process member is provided. A hot water pipe penetrating in the evaporation member of the heat transmitter 1, in the longitudinal direction, and passing a hot water therein, is provided. A heat exchanger plate 3 contacting thermally to the condensation members 1b of the heat transmitter 1 and the snow or the snow ice is accumulated thereon is provided. A heat transmitting layer 4 of a good heat transmissibity is provided to the heat exchanger plate 3.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a melting device used for melting snow and preventing freezing of roofs, roads, etc. in cold regions.

0002

2. Description of the Related Art A conventional device of this kind is disclosed, for example, in Japanese Patent Publication No. 60-50276, and its outline is shown in FIG. In FIG. 2, reference numeral 1 denotes an evaporation section 1a and a plurality of condensation sections 1 extending from the evaporation section 1a to the section to be melted.
b, and a working fluid such as water or ammonia is sealed inside, and the evaporation part 1a of the heat transfer body 1 is
Working fluid is stored inside. Further, a plurality of condensing portions 1b of the heat transfer body 1 are arranged at intervals along the longitudinal direction of the evaporation portion 1a of the heat transfer body 1, and are located above the evaporation portion 1a. Reference numeral 2 denotes a hot water pipe that passes through the evaporation section 1a of the heat transfer body 1 in its longitudinal direction and is immersed in the working fluid of the evaporation section 1a, through which hot water flows.

Next, the operation will be explained. When hot water is passed through the hot water pipe 2, the working fluid inside the evaporation section 1a of the heat transfer body 1 is heated and vaporized, and the amount of heat from the hot water is taken away as latent heat of evaporation and heat is transferred through the heat transfer body 1. condensation part 1 of body 1
Move to b. The vapor of the working fluid that has moved to the condensing section 1b of the heat transfer body 1 is cooled by the snow or snow and ice that has accumulated in the condensing section 1b, condenses and liquefies, and releases the latent heat of condensation into the snow or snow and ice. The liquefied working fluid flows along the inner wall surface of the heat transfer body 1 and returns to the evaporation section 1a of the heat transfer body 1. By repeating the above operations naturally, the heat of the hot water is transferred from the evaporating section 1a of the heat transfer body 1 to the condensation section 1b of the heat transfer body 1, and the heat is transferred to the vicinity of the condensation section 1b of the heat transfer body 1. Accumulated snow and ice will be melted.

[0004] However, in this conventional example, the melting process for snow and snow ice is performed only by releasing the latent heat of condensation from the condensing portion 1b of the heat transfer body 1, and the ability to melt the snow and snow ice is extremely low. Furthermore, since the condensing portions 1b of the heat transfer body 1 are arranged at intervals, the ability to melt snow and ice becomes even lower.

FIGS. 3 and 4 show improved versions of this.
The following are possible. A flat heat transfer plate 3 on which snow or snow and ice accumulates is arranged above the condensation part 1b of the heat transfer body 1, and the condensation part 1b of the heat transfer body 1 and the heat transfer plate 3 are integrated by, for example, welding. It is bonded and fixed to. In this case, snow and snow and ice accumulate on the flat heat transfer plate 3. Therefore, the amount of heat of the hot water flowing through the hot water pipe 2 is transferred from the evaporating section 1a of the heat transfer body 1 to the condensation section 1b of the heat transfer body 1, and is further transferred to the condensation section 1b of the heat transfer body 1.
The heat is transported from the condensing part 1b to the heat exchanger plate 3, and the snow and snow and ice accumulated on the heat exchanger plate 3 are melted through the heat exchanger plate 3. Compared to the conventional example shown in FIG. The melting processing capacity can be improved.

[0006]

However, in the conventional device described above, only a part of the tube wall of the condensing section 1b of the heat transfer body 1 is joined to the heat transfer plate 3. The efficiency of heat conduction from the heat transfer plate 1b to the heat transfer plate 3 is poor, and the temperature distribution of the heat transfer plate 3 has problems such that the temperature is low in the portion of the heat transfer body 1 between the condensing portions 1b.

The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide a melting apparatus that can efficiently melt snow and snow and ice.

[0008]

[Means for Solving the Problems] A melting treatment apparatus according to the present invention includes a heat transfer plate provided with a heat transfer layer.

[0009]

[Function] In the melting treatment apparatus of the present invention, the heat transfer layer provided on the heat transfer plate efficiently conducts heat from the condensation part of the heat transfer body to the heat transfer plate, and the heat transfer plate is uniformly heated. It is heated.

0010

[Example] Example 1. Embodiment 1 A first embodiment of the present invention will be described below based on FIG. 1. In FIG. 1, 1 is a heat transfer body, 1a is an evaporation part, 1b is a condensation part, 2 is a hot water pipe, 3 is a heat exchanger plate, and 4 is provided so as to surround the entire heat exchanger plate 3 and to be in close contact with it. This is a heat transfer layer made of a metal with good thermal conductivity such as copper or silver. The heat transfer layer 4 is fixed to the heat transfer plate 3 by, for example, plating spraying or pasting of a thin plate with an adhesive having good thermal conductivity. In addition, the condensing part 1b of the heat transfer body 1
is fixed to the heat transfer plate 3 via this heat transfer layer 4.

Next, the operation will be explained. When hot water is passed through the hot water pipe 2, the working fluid inside the evaporation section 1a of the heat transfer body 1 is heated and vaporized, and the amount of heat from the hot water is taken away as latent heat of evaporation and heat is transferred through the heat transfer body 1. condensation part 1 of body 1
Move to b. The steam of the working fluid that has moved to the condensing section 1b of the heat transfer body 1 is condensed and liquefied because the temperature of the heat transfer plate 3 and the heat transfer layer 4 is lower than that of the hot water, and the latent heat of condensation is transferred from the condensation section 1b of the heat transfer body 1. The heat is released and transported to the heat transfer plate 3 through the heat transfer layer 4. The heat transfer plate 3 and the heat transfer layer 4 are heated by this condensed latent heat, and their temperature increases. The condensed and liquefied working fluid flows along the inner wall surface of the condensing section 1b of the heat transfer body 1 and flows back into the evaporation section 1a of the heat transfer body 1. By repeating the above operations naturally, the heat of the hot water is transferred from the evaporating section 1a of the heat transfer body 1 to the condensing section 1b of the heat transfer body 1, and further from the condensing section 1b of the heat transfer body 1. Heat is transported to the heat transfer plate 3 and the heat transfer layer 4. At this time, the entire heat transfer plate 3 is heated uniformly by the heat transfer layer 4 having good thermal conductivity, so that snow and snow and ice accumulated on the upper surfaces of the heat transfer plate 3 and the heat transfer layer 4 can be efficiently melted. Moreover, it can be carried out effectively and uniformly.

Example 2. In the above-described first embodiment, the heat transfer layer 4 is provided on the entire heat transfer plate 3, but it may also be provided only on the upper surface of the heat transfer plate 3, that is, on the side where snow or snow and ice accumulate. You can often achieve your intended purpose.

Example 3. Further, although not shown, if a heat insulating material is placed on the lower surface of the heat exchanger plate 3, heat leakage from the heat exchanger plate 3 can be prevented, and the snow removal ability can be further improved.

Example 4. Incidentally, in the above embodiments, the case where the invention is applied to snow melting on roofs has been described, but it is also possible to apply the present invention to snow melting, freezing prevention, and icicle prevention on building rooftops, parking lots, elevated bridges, bridge surfaces, roads, etc. Of course, the same effects as those of the above embodiments can be achieved.

[0015]

[Effects of the Invention] As explained above, the present invention allows the heat transfer layer provided on the heat transfer plate to efficiently conduct heat from the condensation part of the heat transfer body to the heat transfer plate, and also allows the heat transfer plate to Since the temperature is uniformly heated, it is possible to obtain a melting device that can efficiently melt snow and snow and ice.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional melting processing apparatus.

FIG. 3 is a perspective view showing another conventional melting processing apparatus.

FIG. 4 is a cross-sectional view taken along line A-A in FIG. 3, showing the conventional device.

[Explanation of symbols]

1 Heat transfer body 1a Evaporation section 1b Condensation section 2 Hot water pipe 3 Heat transfer plate 4 Heat transfer layer

Claims (1)

[Claims] 1. A heat transfer body comprising an evaporation section in which a working fluid is sealed and a condensation section that is provided in communication with the inside of the evaporation section and extends to a section to be melted; A hot water pipe that is provided to penetrate the evaporator section in the longitudinal direction and through which hot water flows, and a heat transfer plate that is disposed in thermal contact with the condensation section of the heat transfer body and on which snow or snow and ice accumulates. A melting treatment apparatus comprising: a heat transfer layer provided on the heat transfer plate.