JPS59229184A - Heat collector - Google Patents

Abstract

PURPOSE:To reduce power consumption and to prevent lowering of heat collecting performance, in the heat collector capable of utilizing natural wind by operating a blower when the speed of natural wind is less than a set value and stopping the operation of the blower when it is more than the set value. CONSTITUTION:Heat medium pipes 2 which circulate therein a heat medium are passed through planar heat-exchange elements 1 which are erected vertically on the ground surface and mutually have a certain interval. The heat-exchange elements 1 and the heat medium pipes 2 thus constructed are bent and formed in an annular shape thereby to form a heat exchanger 7. An upper covering plate 8 is placed on the upper part of the heat exchanger, and the upper end of a lower covering plate 9 of a bellmouth shape, both ends of which are opened, is brought into abutment with the lower part of the heat exchanger 7. A blower 11 is disposed at the intermediate of an air duct formed of the lower covering plate 9. A wind speed detector 15 is provided at the upper covering plate 8 or the lower covering plate 9. When the speed of natural wind is less than a certain set value, the blower 11 is operated, and when it is more than the set value, the blower 11 is stopped to operate. As a result, power being consumed can be reduced and the heat collecting performance improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat collector using air as a heat source. Conventionally, there have been two types of devices of this type: those that utilize natural wind or natural convection, and those that utilize forced convection by a blower, each of which has its advantages and disadvantages. In other words, those that utilize natural wind do not require power, but the amount of heat collected is greatly affected by natural conditions9, and the shape tends to be awkward.

Furthermore, although the forced convection method is less susceptible to the effects of natural conditions and can be made smaller, it has the disadvantage of consuming power.

The present invention has been made in view of the above points.

Hereinafter, the present invention will be explained by taking as an example a heat collector using a plate-shaped fin-cheve heat exchanger.

First, 1 is a flat heat exchange element that is vertically placed on the ground and has a certain distance from each other, 2 is a heat medium pipe through which the heat medium flows, a filter, 4 is a header pipe, and 5 is a heat medium inlet pipe. ,6
The heat medium discharge pipe 7 is a heat exchanger constructed from 1 to 4, 8 is an upper cover plate placed on the top of the heat exchanger 7, and 9 is a lower cover plate. It has a bell mouth shape with both ends open, the lower side serves as an air outlet, and the upper side contacts the heat exchanger 7. A blower 11 is placed in the middle of a wind tunnel formed by a large lower cover plate 9, and is fixed to the lower cover plate 9 with a support fitting 12. 14
The installation legs are for installing the heat collector body 1 on the ground. Reference numeral 15 denotes a wind speed detector, which is arranged on the upper cover plate 8 near the heat exchanger 7. In addition, wind speed detector 15
may be arranged on the lower cover plate 9.

In the circuit shown in FIG. 6, 16 is a main switch, and 17 is a switch operated by the wind speed detector 15.

The operation of the embodiment will be explained below.

When the main switch 16 is turned on, the wind speed detector 15 is activated, but when the wind speed of natural wind is equal to or higher than the set value, the switch 17 remains off. As a result, the blower 11 is not operated, and heat is collected by the natural wind. At this time, since the heat exchanger 7 is annular, air can be efficiently taken in from all directions.

On the other hand, if the wind speed is below the set value, the wind speed detector 15 turns on the switch 17 to operate the blower 11 to generate forced air. As a result, during busy times, forced air is used to collect heat from the air.

As explained above, according to the present invention, when the natural wind speed is sufficient, the blower is not operated, so power consumption can be reduced, and when the natural wind speed is low, the blower is driven, so the heat collection Its effects are outstanding, such as no deterioration in performance. Although the explanatory diagram shows a fin-chive type, the present invention is not limited to this type, and may be of any shape such as a pipe-on-sheet type or a flat plate type.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is a similar plan view with the upper cover plate removed, and FIG. 6 is a similar electrical circuit diagram. 1. Heat exchange element 2. Heat medium pipe 7. Heat exchanger 8. Upper cover plate 9. Lower cover plate 11. Air blower 15. Wind speed detector

Claims (1)

[Claims] A heat exchanger is formed by passing a heat medium pipe through which a heat medium flows through flat heat exchange elements standing perpendicular to the ground and having a certain distance from each other, and bending the heat medium into an annular shape to form a heat exchanger. An upper cover plate is placed on the top of the vessel, and the upper end of the bell mouth-shaped lower cover plate with both ends open is placed at the bottom. Place the blower,
Moreover, a wind speed detector is provided on the upper cover plate or the lower cover plate, and the blower is operated when the wind speed of natural wind is below a certain set value, and is stopped when it is above the set value. A heat collector featuring: