JPH089571Y2 - Heat exchanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a flow-down type heat exchange device constructed by using a flexible sheet material.

2. Description of the Related Art Planar water-permeable mats and water-filled bags having parallel water passages, which are made of synthetic resin sheet materials, are well known.
The roof-mounted pump-type heat collector, which has been sold, has a structure in which water is stored in a synthetic resin bag and exposed to direct light.

Problems to be Solved by the Invention Such a water-permeable mat / water-filled bag has poor pressure resistance and has a drawback that water leakage occurs due to deterioration of the material and for a relatively short period of use. In addition, it is difficult to repair water leaks and the service life is generally short. Especially large ones (those with large water storage) are difficult to manufacture.

All of the conventional devices are fixed and used, and the installation angle cannot be relatively easily changed according to the usage conditions.

Means for Solving the Problems The flow-down pumping type heat exchange device according to the present invention uses a flexible sheet material, and lifts a part of a peripheral portion of the flexible sheet material higher than other parts. By supporting the inclined heat exchange surface in an inclined state, the inclined heat exchange surface is formed, and the heat medium liquid is sprinkled on at least a part of the peripheral portion of the slanted heat exchange surface. Is made to flow down along the inclined surface to be stored in the depression, and a part of the lifted peripheral edge of the flexible sheet material is held so as to be movable in the vertical direction. It has a structure in which the inclination angle of the heat exchange surface can be adjusted by adjusting the height position of.

Operation According to the above-mentioned structure, if the height position of a part of the peripheral portion of the flexible sheet material is appropriately adjusted, it is possible to provide an optimal tilt angle corresponding to seasonal conditions / loading conditions / incident angle of sunlight. A continuous continuous downflow heat exchange surface is formed.

That is, a part of the lifted peripheral edge of the flexible sheet material and / or another part of the peripheral edge opposite to this partial peripheral edge is vertically and / or longitudinally (laterally) as necessary. It can be moved to adjust the erection angle of the flexible sheet material, while at the same time adjusting the size of the depression of the flexible sheet material or the degree of sag of the flexible sheet material.

The size of the sheet material (heat exchange area) can be freely selected, and the volume of the depressions continuous to this flow-down path can also be selected according to the required load.

The heat medium liquid recovery operation is performed at the same time as the heat exchange toward the recess, and in fact, there is no heat medium liquid in the process of recovery that is not involved in the heat exchange. An efficient and continuous heat exchange operation is performed.

Insulating watertight structure such as conventional water-permeable mat / water-filled bag is not required, and even if the material breaks, a repair seal cloth can be attached to the inner surface of the damaged part for easy repair.
It can be reinforced as needed and used for a long time.

The above-mentioned device has a simple structure in which the lower surface and the heat retaining tank are integrated regardless of the size of the sheet material. Since the falling heat exchange surface is made of a sheet material that can be easily processed, the heat exchange area, its three-dimensional shape, and the volume of the depression can be freely selected.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First Embodiment FIG. 1 shows a first embodiment of the heat exchange device according to the present invention.

In the illustrated heat exchange device, the upper side part 1 a, which is a part of the lifted peripheral part of the flexible sheet material 1, is installed in a part of one structure 5. Further, a lower side portion 1b as another portion of the peripheral portion facing the part 1a of the lifted peripheral portion is attached to the other structure 6.

In the illustrated embodiment, a jack device is used for one of the structures 5, and when the jack device is operated, the structure 5 expands and contracts in the vertical direction, resulting in the flexible sheet material 1.
The height position of the upper side portion 1a can be adjusted. The other structure 6 is inserted and fixed in an opening at a required position among a series of openings 7 formed in advance on the supporting surface. These openings 7 are installed at a plurality of locations in advance and can be selected according to the expansion / contraction state of one of the structures 5. A jack device similar to the one structure body 5 can be installed in the other structure body 6, and the installation position of the one structure body 5 is the same as that of the other structure body 6 using an opening. It can also be configured to convey lateral movement.

FIG. 2 shows a specific adjustment example in which the position and height of the structure are adjusted in this way, and the inclination angle of the heat exchange surface 2 is set large.

The flexible sheet material 1 thus laid is, for example,
The heat exchange surface 2 having an appropriate inclination angle is formed according to the seasonal variation of the sun. The upper side of the heat exchange surface 2 can be covered with a transparent sheet material 4 if necessary. The heat transfer medium 2 is sprayed onto the curved heat exchange surface 2 by using a spraying means (not shown) such as an injection nozzle or a perforated pipe. The dispersed heat transfer medium liquid flows down along the curved surface while removing the heat from the heat exchange surface 2, and collects in the recess 3 of the curved surface.

When using tap water for heat collection, a solenoid valve is intermittently opened and closed by using a timer, and tap water is regularly sprayed on the heat exchange surface, and a predetermined amount of warm water is placed in the depression 3 by the time heat collection ends. Can be operated so as to collect water, or in addition to such operation, or separately from such operation, water accumulated in the depression can be repeatedly sprayed on the heat exchange surface 2. The depression 3 can be used as a hot water storage tank, but can be used as a booster tank or a trap when a hot water storage tank is separately prepared.

The flexible sheet material 1 has a rectangular shape, a circular shape, an elliptical shape, or another shape, and is suitable to meet the shape of each sheet, the mechanical strength of the flexible sheet material 1, and the hot water storage capacity. It is advisable to use a reinforcing material or a pedestal to hold it in place. In particular, when the hot water storage capacity is large, a supporting platform may be installed below the hot water storage portion (concave 3).

As the flexible sheet material, various sheet materials such as a fiber reinforced resin sheet and a rubber sheet are selected and used.

In order to reduce the amount of heat radiated from the lower surface of the flexible sheet material, a heat insulating layer is attached to at least a portion corresponding to the depression. The flexible sheet material preferably has a certain degree of heat insulation in order to reduce the amount of heat radiated from the lower surface as much as possible. For example, a soft urethane foam layer can be adhered to the entire back surface.

The above-mentioned flow-down type pumping heat exchange device may be equipped with a foaming device (not shown) for discharging bubbles, if necessary. Various types of foaming devices can be used. The foaming device is configured to supply bubbles to the upper surface of the heat medium liquid accumulated in the depression or agitate the heat medium liquid to generate bubbles. The bubbles spread in layers on the surface of the heat medium liquid due to the surface tension of the heat medium liquid, and can form a heat insulating layer that covers the surface of the heat medium liquid.

An example of agitating the heat medium liquid to generate bubbles is, for example, a case where the illustrated downflow exchange device is used as a preheating device for washing water of an aircraft or a large vehicle. In an example of using it as a preheating device for such wash water,
It is also possible to mix a surface-active agent in water in advance and mechanically agitate a part of the water, for example, the water surface with a screw or the like, and at the same time spread the foam itself to the liquid surface by utilizing the water flow generated on the liquid surface. it can.

The foamed heat insulating layer is formed, if necessary, for example, only in a desired time zone after the heat collection is completed, or the layer thickness is increased according to the temperature difference from the outside air temperature, or if necessary. It is also possible to expose the liquid surface directly to sunlight by eliminating the foamed heat insulating layer.

In the above-described first embodiment, the other structure 6 can be configured as a travelable structure including wheels. Further, it is of course possible to install the reel device 8 on the other structure 6 so that the flexible sheet material can be paid out or taken up if necessary.

FIG. 3 shows a second embodiment of the heat exchange device according to the present invention.

The heat exchange device of the second embodiment shown in FIG.
The point that a winch device 5a is installed is different from that of the first embodiment. The winch device 5a supports the upper side portion 1a of the flexible sheet material 1 from above and adjusts the payout length of the wire rope so that the height position of the upper side portion 1a can be controlled.

Also in the second embodiment, the reel device 8 can be installed on the other structure 6, as a matter of course.

Incidentally, it is desirable to fix the upper end of the flexible sheet material 1 and the connecting portion of the wire rope by an appropriate method so as not to shake when the wire rope is fed out from the winch device 5a. At the time of this fixing, the upper side portion 1a of the flexible member 1 can be appropriately moved in the lateral direction.

Various moving means other than the winch device can be used for the structure 5. For example, it is possible to install a guide track for an extruded profile having a channel groove and attach the upper side part 1a to a roller that moves in the channel groove.

EFFECTS OF THE INVENTION By configuring as described above, the upper side portion 1a of the flexible sheet material 1 is movable in the vertical direction, and the lower side portion 1b of the flexible sheet material 1 is also in the front-back direction (lateral direction). Can be moved to. By adjusting the movement in the up-down direction and / or the forward-backward direction, for example, the inclination angle of the heat exchange surface 2 can be changed according to the seasonal variation of the sun altitude, and the opening 7 can be selectively used to change the depression 3. The scale can be varied and, if desired, the volume of the depression can be varied. It goes without saying that the heat exchange device described above can be used as a heat collecting device for evaporative concentration or as a radiator.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a first embodiment of the heat exchange device according to the present invention. FIG. 2 is an explanatory view showing a specific adjustment example of the heat exchange device according to the present invention. FIG. 3 is an explanatory view showing a second embodiment of the heat exchange device according to the present invention. 1: flexible sheet material, 1a: upper side portion, 1b: lower side portion, 2: heat exchange surface, 3: hollow, 4: transparent sheet material, 5: one structure,
6: The other structure.

Claims (2)

[Scope of utility model registration request] 1. A flexible sheet material is used, and by supporting a part of a peripheral portion of the flexible sheet material in a state of being lifted higher than other portions, a slanted dented portion is formed. A heat exchange surface is formed, and the heat medium liquid is sprinkled on at least a part of the peripheral portion of the inclined heat exchange surface, and the sprinkled heat medium liquid is made to flow down along the inclined surface to be stored in the depression. A part of the lifted peripheral edge portion of the flexible sheet material is held so as to be movable in the vertical direction, and the inclination angle of the heat exchange surface is adjusted by adjusting the height position of the peripheral edge portion. Adjustable heat exchange device. 2. The heat exchange device according to claim 1, wherein the other portion of the peripheral edge portion facing the part of the raised peripheral edge portion is movably held in the front-rear direction.