JPS63238339A - Heat exchanger - Google Patents

Abstract

PURPOSE:To provide a heat exchanger for a comfortable space heating operation in which a ratio between radiation heating and convection heating can he freely varied by a method wherein a panel having a superior thermal conductivity is fixed to a surface of a fin tube and a blower of which air volume can be controlled is placed in correspondence with the panel. CONSTITUTION:A fin tube is fixed to a panel 3 made of aluminum and copper and the like having a superior thermal conductivity, a blower 4 is a blower of which blown air volume can be controlled. The blower is placed in compliance with the fin tube. When a heating operation rises, in order to make a rapid heating action, the number of revolution of the blower is increased, for example, and the amount of heat exchanging with a coolant is increased. At this time, a surface temperature at the panel 3 is entirely low and radiation heat is not felt well at a human body. In turn, when the operation is transferred to normal heating operation, the amount of blown air is decreased and the panel surface temperature is increased in place of reduction of the amount of heat exchanging action between air and coolant flowing in the tube 2, whereby the radiation component for a human body is increased and comfortable heating is assured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a heat exchanger for space heating that includes a fin tube and a blower.

[Background technology]

In conventional space heating heat exchangers,
It is limited to either an air convection type or a radiant type; the former starts up quickly, but the air blowing out is uncomfortable for the human body, while the latter uses radiant heating and is comfortable, but has drawbacks such as slow start-up. .

[Purpose of the invention]

The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide a heat exchanger for comfortable space heating in which the ratio of radiation and convection heating can be freely changed.

[Disclosure of the invention]

The gist of the present invention is a heat exchanger characterized in that a panel with good thermal conductivity is pasted on the surface of a fin tube, and a blower that can control the air volume is associated with the Shikon 1.

The present invention will be explained below based on the embodiments shown in FIGS. 1 and 2.

A finned tube is generally a steel tube with aluminum fins attached.

The fin tube is attached to a panel (2) made of aluminum, copper, etc. with good thermal conductivity by brazing, screwing, etc.

The blower (2) is a blower whose air volume can be controlled by changing the amount of opening/closing of the damper or by changing the number of rotations of the blower, and is provided corresponding to the fin tube.

Next, the operating state will be explained.

When heating starts up, rapid heating is performed by, for example, increasing the number of rotations of the fan, increasing the amount of air blown, and increasing the amount of heat exchanged with the refrigerant. At this time, the surface temperature of panel (2) is low overall, and the human body does not feel much radiant heat.

On the other hand, when switching to steady heating, although the temperature is warmer, the speed of airflow blown out is large, making it uncomfortable for the human body.

Therefore, in exchange for reducing the air volume and reducing the amount of heat exchange between the air and the refrigerant flowing through the tube (2), the panel surface temperature increases, increasing the radiation component to the human body and providing comfortable heating.

The graph in Figure 2 shows this state, with temperature on the horizontal axis and the air path length of the heat exchanger on the vertical axis. ii) is the radiant temperature when the air volume is large. Furthermore, (iii)
indicates the refrigerant temperature.

At this time, if the panel (2) is installed with the high-temperature part facing down, it will become a radiant panel that cools the head and heats the feet. If it is used as a floor panel, it will provide comfortable floor heating, although there will be some radiation distribution.

The above operations (air volume control) can be switched automatically using a timer or the like, or can be performed manually.

〔Effect of the invention〕

According to the heat exchanger of the present invention, when used for space heating, there is regular heating due to convection at the time of startup,
Under steady-state conditions, you can switch to comfortable radiant heating. It goes without saying that the refrigerant is not limited to one whose temperature does not change as in the above embodiments, but also one whose temperature changes.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention.
Figure (A) is a plan view, (B) is a side view, and Figure 2 is a graph. ■...Fin, ■...Tube, ■...Panel,
■...Blower.曵X fK'? *'a m * * c procedure nail
i Correct 7+ (Spontaneous axis iE) May 21, 1985 1, Indication of the case 1982 Patent Application No. 72501 2, Name of the invention Heat exchanger 3, Person making the amendment Relationship to the case Patent applicant Address: 1048 Oaza Kadoma, Kadoma City, Osaka Name (583) Matsushita Electric Works Co., Ltd. 6 Contents of amendment +11 In the 5th line of page 3 of the specification, "low <" is corrected to read "low."

Claims (1)

[Claims] (1) A heat exchanger characterized in that a panel with good thermal conductivity is attached to the surface of a fin tube, and a blower that can control the air volume is attached.