JPS5878093A - Heat accumulating type heat exchanger - Google Patents

Abstract

PURPOSE:To increase the volume of a heat accumulating body, in the heat accumulating type heat exchanger wherein outer air intake and room air exhaustion are simultaneously performed, by winding a corrugated fiberboad shaped heat exchange body constituted by a pair of corrugated plates whose heights from a fliat plate are different and wavelengths are equal. CONSTITUTION:The heat exchanger 9 is formed by winding the corrugated fiberboard shaped heat exchange body constituted by corrugated plates 12 and 13, whose heights from the flat plate 11 are different and the wavelengths are equal, in a circula cylinder shape. The plates 11, 12, and 13 are made of heat accumulating material such as Japanese paper, respectively. Draft paths 15 are formed between the corrugated plates 12 and 13 in this way. Said heat exchanger 9 is arranged and rotated in an air exhausting path 4, and exhaust air C and an intake air stream D are fowed, respectively. The heat of the warm exhaust air C is accumulated in the plates 11-13 in the heat exchanger 9 and radiated to the intake air stream D. In this constitution, the heat accumulating volume per unit volume can be increased and the heat exchange efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a regenerative heat exchanger used in a ventilation system, etc., which simultaneously takes in outside air and exhausts indoor air.

Generally speaking, when heating and cooling a room, it is desirable to bring in as much fresh outside air as possible to make the room comfortable and healthy. However, if too much outside air is brought into the room, The indoor temperature and humidity fluctuate, which is undesirable because the operating cost of the heating and cooling equipment increases.

Therefore, as a ventilation system for the room being cooled and heated, a device that simultaneously sucks in outside air and exhausts indoor air is used, and a heat exchanger is attached to this, and the exhausted air is used through this heat exchanger. The intake air is warmed or cooled, and then humidified to increase the temperature and humidity of the intake air.
It is proposed to save the operating costs of the refrigeration system by bringing the temperature and humidity of the exhaust air closer to the temperature and humidity of this exhaust air.

Conventionally, various heat exchangers have been invented in which a corrugated paper-like heat storage exchange element formed by laminating a flat substrate and a single corrugated substrate is wound into a cylindrical shape. ing. However, the idea of that invention was to reduce the thickness of the element body by forming fine waves on the corrugated substrate to increase the amount of winding, thereby increasing the heat storage volume without increasing the volume. This increased the heat storage efficiency of the substrate itself. However, when the finely patterned film of the above-mentioned corrugated substrate is wound, the corrugations may be crushed and the airflow may be blocked. In addition, in order to increase the heat storage efficiency of the cutting board and board, post-processing will be required, and Wi
Unless the heat storage volume was also increased, it was not possible to expect a significant increase in heat storage efficiency.

The present invention has been made in view of the above points, and is based on the wave V of the base slope of the waveform.
a or (not wave iKh) 2 with different but same wavelength
To provide a heat exchanger with an increased heat storage volume even if the volume of the heat exchanger is the same, by stacking different types of corrugated substrates to increase the heat storage volume. .

The present invention will be explained below based on embodiments shown in the drawings.

(1) is the indoor side and outdoor side tBl formed on the room wall (2).
(A ventilation device installed in two communicating openings, the ventilation device rl) is partitioned into an upper and lower part by a partition plate (3) to form an exhaust passage (4) and an intake passage (5). ing.

Exhaust vent W11 (41C is exhaust air blower all 161
is installed internally, and the intake passage (5) is equipped with an intake blower (7).
It's decorated. The partition plate 13) has both passages +4
1 +51 by forming an opening (8) communicating with g, v&
A cylindrical heat storage type heat exchanger (9) is positioned in the opening (8) so as to straddle both of the passages (4) and 5). The heat exchanger (9) is equipped with a gear motor αG attached to the edge of the opening.
It is rotated at a constant low speed or intermittently.

The heat exchanger (9) is constructed by laminating a flat substrate a11, a first waveform substrate a and a second waveform substrate Ql having different wave heights but the same wavelength, to form a corrugated paper-like heat storage exchange element body 04. is formed, and the heat storage exchange element a1 is wound to form a cylindrical shape. The flat substrate 0υ, the first corrugated substrate @03, and the second corrugated substrate lI3 are Japanese paper or asbestos paper.

It is molded from heat storage materials such as ceramic paper and polypropylene plates. Also, each group f! In order to maintain the hygroscopicity of lInG30m, 11M treatment with sodium chloride or the like may be applied to Japanese paper, etc., or it may be impregnated with a phosphoric acid compound to make it flammable, and various other methods can be considered. It is. Said @1 waveform base I! i! aZ and @2 corrugated board [l
- means ventilation @0 between both boards 0203 as shown in @3 causes.
! The first waveform substrates 0 and IJ! are overlapped to form J! Even if the wavelength and wave height of the two waveform substrates aj are somewhat large, the first waveform substrate Q3 and @22 waveform substrate l are interposed between the n-wafer flat substrate QOQn,
The heat storage volume per unit volume can be increased, and the heat exchange efficiency per unit volume can be improved. Therefore, even if the heat exchanger has the same volume as a conventional heat exchanger, the heat storage volume increases significantly, and the heat exchange efficiency and heat exchange amount increase.

Said exhaust passage (4) L: located in the drilling heat exchanger li&M! r
Exhaust/1iElcI to one half of the tel and pass the warm air (for example, the exhaust air from the heating room) through the air intake. I
t51- Pass cold air as an intake flow IDI to the other side of the heat exchanger (9) located there, for example, intake air from the outdoors into the heating room in winter, then the exhaust passage (4) E
The heat exchangers (9) located at 1,000 positions are heated and absorb and store the heat in the exhaust gas tItlQ.

After that, as the heat exchanger (9) rotates slowly, the heat exchanger (91 is located in the air intake vent @(5)) where sufficient heat is stored.Therefore, it is cold.
Once the inlet air flow is cooled down to ) °C, the heat exchanger (9) is cooled.

At the same time, one of the intake air streams is warmed. Therefore, by recovering the heat stored in the exhaust stream (of the intake air stream through the heat exchanger (9)!), the heat loss retained by the indoor air is reduced, and the indoor air The heat exchange efficiency per unit volume of the heat exchanger of the present invention can be improved by about 20% compared to the conventional C2.

As described above <-1 The present invention comprises laminating a first corrugated substrate and a second corrugated substrate having different wave heights but the same wavelength as a flat substrate to form a corrugated paper-like heat storage exchange plate, and Since it is a heat storage type heat exchanger formed by winding the exchange element, it is possible to obtain a large heat storage volume with a small volume, improving heat exchange efficiency, and molding without forming fine waves on the corrugated board. This has the effect of easily reducing ρ.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a ventilation system using the heat exchanger of the present invention, FIG. 2 is a perspective view of the heat exchanger in use, and FIG. 11 is a partial sectional view of a heat storage exchange element. (9)...Heat exchanger, 01)...Flat substrate 0
3... 1st waveform board 3... 2nd waveform board
■・・・Heat storage exchange plate Figure 1 Figure 3 Figure 2

Claims (1)

[Claims] t. A corrugated paper-like heat storage exchange element is formed by laminating a first waveform substrate having a different wave height but the same wavelength as a flat substrate and an IJ2 waveform colored plate, and winding the heat storage exchange element. A regenerative heat exchanger.