JP2884552B2 - Heat storage type hot air heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage type hot air heater using an adsorption heat type heat storage material.

[0002]

2. Description of the Related Art A conventional hot air heater is shown in FIGS.
This will be described with reference to FIG. As shown in FIG. 8, for example, as shown in Japanese Utility Model Publication No. 3-36001, the warm air heater has a heat storage material 810 laminated inside the main body 800.
A heater 820 for heating the heat storage material 810;
Blower (not shown) that sends heat of heat storage material 810 out of the machine
And a regenerative warm air heater having: In this heat storage type hot air heater, magnesia-based brick is used as the heat storage material 810, and only the sensible heat is used.

Further, as shown in FIG. 9, there is a hot air heater that does not use a heat storage material. This hot air heater has a body 900
A hot air heater 910 provided therein, a blower 920 for blowing hot air W heated by the hot air heater 910,
It has a guide duct 930 for guiding the warm air W from the blower 920 to the outlet 901, and a humidifier 940 provided in the guide duct 930.

[0004] The main body 900 is formed in a box shape, and the outlet 901 is opened at the lower part of the front surface. Further, a suction port 902 provided with a louver 903 is opened at an upper portion of the rear surface of the main body 900, and the suction port 902 is provided.
A substantially L-shaped guide duct 930 is provided from to the outlet 901. A blower 920 faces the suction port 902. As the warm air heater 910 provided in the guide duct 930, a ceramic heater having a positive self-temperature control function is used. Note that the hot air heater 910 is provided downstream of the blower 920.

[0005] The blower 920 comprises a motor 921 installed on a front wall 931 of the guide duct 930 and a motor 921.
And a fan 922 attached to the rotating shaft 21. On the other hand, the horizontal wall 93 of the guide duct 930
2, a water tank 933 is formed. Above the water tank 933, an infrared humidifying unit 940 including a rod-shaped humidifying heater 941 made of ceramics having high radiation efficiency of infrared rays and a reflecting plate 942 installed above the humidifying heater 941 is attached. I have. Furthermore, a water tank 933
Above the water supply tank 95 for supplying water to the water tank 933.
0 is provided.

[0006]

However, the above-described conventional heat storage type hot air heater uses only the heat stored in the heat storage material for heating, so that a large amount (several tens of kilograms) of heat storage material is used. Therefore, the entire apparatus is large and heavy. Further, even if the heat storage material is insulated, there is a problem that if the heat storage material is left for a long period of time, for example, one day or more, the heat storage material cools and it takes time to resume heating.

[0007] In a non-thermal storage type hot air heater, the electric power generally supplied to the home is 100 V and 15 A, so that only a hot air heater of about 1.2 Kw can be used, and about 1000 Kcal / h. There was only heating capacity.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a light-weight and small-sized heat-storage type hot-air heater having a large heating capacity, being more efficient.

[0009]

SUMMARY OF THE INVENTION A regenerative warm air heater according to the present invention uses air sucked by a first blower as a first air blower.
A hot air heater for generating hot air, a heat storage tank having an adsorption heat type heat storage material that makes the air a second hot air by adsorbing moisture of air sucked by a second blower, and the adsorption heat type heat storage material And a mixing chamber for mixing the first hot air and the second hot air ,
Adsorption heat type heat storage material is a ceramic molded body that does not adsorb moisture
Surrounded by

[0010]

FIG. 1 is a front view showing a schematic configuration of a heat storage type hot air heater according to a first embodiment of the present invention, and FIG. 2 is a schematic view of a heat storage type hot air heater according to the first embodiment. Side view showing a typical configuration,
FIG. 3 is a front view illustrating a schematic configuration of a heat storage type hot air heater according to a second embodiment of the present invention, and FIG. 4 is a schematic diagram illustrating a heat storage type hot air heater according to the second embodiment. FIG. 5 is a side view, FIG. 5 is a front sectional view showing a schematic structure of a heat storage tank of the heat storage type hot air heater according to the present invention, and FIG. 6 is a schematic structure of a heat storage tank of the heat storage type hot air heater according to the present invention. FIG. 7 is a sectional view showing a schematic configuration of a heat storage tank according to another embodiment.

[0011] The regenerative warm air heater according to the first embodiment comprises:
The hot air heater 300 that makes the air CA ₁ sucked by the first blower 210 the first hot air WA ₁ and the air CA ₂ sucked by the second blower 220 to adsorb the water CA ₂ a storage tank 400 with adsorbed thermal heat storage material 410 to 2 hot air WA _2, reproduction heater 430 for reproducing the adsorbent thermal heat storage material 410
When, and a mixing chamber 110 for mixing the first hot air WA ₁ and the second hot air WA _2.

The main body 1 of the regenerative warm air heater according to the present embodiment.
00 is roughly divided into three parts as shown in FIGS. That is, it is the upper part in which the first blower 210 and the second blower 220 are stored, and
10 is a lower portion in which the mixing chamber 110 is stored, and is a middle portion that becomes the mixing chamber 110. The hot air outlet 111 of the mixing chamber 110 is
It is open at the front of 0. Although not shown in the drawing, a guard or a louver is attached to the hot air outlet 111 of the mixing chamber 110.

The outlet of the first blower 210 housed in the upper part of the main body 100 is connected to a first blower duct 211. Inside the first air duct 211, warm air heater 300 is a ceramic heater having a positive self-temperature characteristic is provided, the air CA ₁ first hot air sucked by the first blower 210 WA ₁ And And
The outlet 212 which is the terminal end of the first air duct 211
Is open near the center of the mixing chamber 110.

On the other hand, the discharge port of the second blower 220 is
It is connected to the air duct 221. The terminal end of the second air duct 221 is communicated with a heat storage tank 400 in which an adsorption heat type heat storage material 410 is stored.

As shown in detail in FIG. 5 and FIG. 6, a heat storage tank 400 includes an adsorption heat type heat storage material 410 and a ceramic molded body 420 surrounding a side surface of the adsorption heat type heat storage material 410.
And a regeneration heater 430 provided below the adsorption heat type heat storage material 410, and a mesh-shaped lower partition plate below the regeneration heater 430 and forming a ventilation path 450 between the regeneration heater 430 and the regeneration heater 430. 440 and a mesh-shaped upper partition plate 460 that covers the upper surface of the adsorption heat type heat storage material 410
And a heat insulating material 470 covering the whole. The ventilation path 450 communicates with the end of the second ventilation duct 221. The heat storage tank 400 is housed in the lower part of the main body 100 via the spacer 480 as described above.

The ceramic molded body 420 is formed of alumina, mullite, agnesia, silica, or the like, and has a property of not absorbing moisture. As the heat-of-adsorption type heat storage material 410, Zeolam F-9 or Zeolam A-4 manufactured by Tosoh Corporation, which has a high water adsorption capacity, is used as the synthetic zeolite.

These synthetic zeolites have a water adsorption capacity of about 15% of their own weight, and generate 750 Kcal per kg of adsorbed water. Therefore, when these synthetic zeolites are used as the heat-of-adsorption type heat storage material 410, not only the heat of adsorption but also the sensible heat can be used, and the heat storage amount per unit weight is larger than that of the conventional magnesia brick. Can be configured lightly.

Further, the regeneration heater 430 is provided with a plurality of radiating fins 431 for uniformly heating the adsorption heat type heat storage material 410, and the radiation fins 431 are, as shown in FIG. It protrudes into the mold heat storage material 410. Note that a sheathed heater or the like is used for the heater 430 for regeneration.

On the upper surface of the heat storage tank 400, a third ventilation duct 230 is attached. The third ventilation duct 230 communicates with the bottom of the mixing chamber 110. Therefore, the outlet 212 that is the terminal end of the first air duct 21 is provided above the third air duct 230. The drawings in 500 shows a temperature sensor for detecting the third temperature of the second hot air WA ₂ or the like sent from the air duct 230. The temperature sensor 500 detects completion of regeneration of the adsorption heat type heat storage material 410 and the like.

Next, an example of the operation of the heat storage type hot air heater having the above-described configuration will be described. The air CA ₁ sent into the first blow duct 211 by the first blower 210 is
The first warm air WA ₁ which is heated by the warm air heater 300
And the outlet 2 at the end of the first air duct 211.
From 12 is supplied to the mixing chamber 110.

On the other hand, when the heat stored in the adsorption heat type heat storage material 410 is used, that is, when warmer warm air W is supplied into the room, the second blower 220
₂ is sent to the heat storage tank 400 via the second air duct 221, and the moisture contained in the air CA ₂ is absorbed by the heat absorption type heat storage material 41.
Adsorb to 0. When the heat of adsorption type heat storage material 410 adsorbs moisture, heat of adsorption (including heat of condensation) is generated. Of course, sensible heat can also be used. This heat of adsorption, etc.
And the second hot air WA ₂ warm the A _2. This second warm air WA
₂ is supplied to the mixing chamber 110 via the third ventilation duct 230 and is mixed with the first warm air WA ₁ to form the warm air outlet 1.
11 is supplied indoors as warm air WA. The warm air WA supplied into the room is warmer than that heated by the warm air heater 300.

[0022] At this time, in order to prevent the temperature of the second hot air WA ₂ is too high, the temperature sensor to become smaller than the second set temperature the temperature of the second hot air WA ₂ is set in advance Until 500 detects, the second blower 220 is not driven. When the temperature of the second hot air WA ₂ is driven second blower 220 is below the second preset temperature, a certain time (for example, about 30 minutes to 1 hour) has elapsed, automatically second
The blower 220 is stopped. Therefore, it is suitable when the room is to be quickly warmed, for example, when the room in the early morning is particularly low in temperature.

In the case of regenerating the adsorption heat type heat storage material 410 adsorbing moisture, the regeneration is performed by supplying electricity to the regeneration heater 430 with the second blower 220 stopped. That is, heating by the regeneration heater 430 (200 to 30)
At 0 ° C.), moisture is evaporated from the heat-of-adsorption type heat storage material 410.
Since the ascending air current is naturally generated by the heating of the regeneration heater 430, the air containing moisture is supplied to the third air duct 2
The mixture is guided to the mixing chamber 110 via the cooling chamber 30, and is exhausted into the room from the hot air outlet 111 of the mixing chamber 110.

At the time of regeneration of the adsorption heat type heat storage material 410, when the air containing moisture sent from the third ventilation duct 230 into the mixing chamber 110 becomes higher than a first predetermined temperature, the temperature sensor 500 indicates that. The first blower 210 starts low-speed rotation based on the detection signal, and forcibly sends the air into the mixing chamber 110.

When the regeneration of the adsorption heat type heat storage material 410, that is, the heat storage, is completed, the temperature of the air passing through the third air duct 230 rises, and the temperature is detected by the temperature sensor 500, and the predetermined temperature is set. When the above is reached, the power supply to the regeneration heater 430 and the first blower 210 is stopped,
Regeneration of the adsorption heat type heat storage material 410 is completed.

The regeneration of the adsorption heat type heat storage material 410 is often performed by using midnight power at night or the like when the heat storage type hot air heater is not used. The power is slightly reduced, and the heater 430 for regeneration is used.
It is also possible by energizing.

Next, a second embodiment of the present invention will be described with reference to FIGS. The point that the heat storage type hot air heater according to the second embodiment is different from that according to the first embodiment is that an outlet 212 which is an end portion of a first air duct 211 inside the mixing chamber 110, It is a positional relationship of the third ventilation duct 230. That is, the first air duct 2
11 is attached so as to cover a part of the third ventilation duct 230, so that the second warm air WA ₂ from the third ventilation duct 230 always goes around the first ventilation duct 211 and enters the mixing chamber 110. It is sent. Therefore,
It is possible to increase the temperature of the first hot air WA ₁ when the second hot air WA ₂ is fed to the mixing chamber 110, during the regeneration of adsorbent thermal heat storage material 410, air containing moisture generated Since it does not enter the warm air heater 300 side, dew condensation around the warm air heater 300 is prevented.

Further, as shown in FIG.
If the deodorant 490 supporting the oxidation catalyst is filled between the heat absorbing material 410 and the upper partition plate 460, the second warm air WA ₂ , that is, the odor component contained in the air CA ₂ is absorbed. Therefore, clean warm air W can be supplied. Further, the odor component adsorbed by the deodorant 490 is oxidized and thermally decomposed when the adsorption heat type heat storage material 410 is regenerated. As the deodorizer 490, a carrier in which about 0.1 to 2.0 g of a platinum group metal such as platinum, palladium, and rhodium is supported per liter of a ceramic carrier such as synthetic zeolite, activated alumina, and mullite. use.

If the deodorant 491 using a hydrophobic zeolite besides the synthetic zeolite as the carrier is used, the hydrophobic zeolite has a large specific surface area of about 500 cm ² / g. Odor compounds such as aldehydes, ketones, esters, lower fatty acids, nitrogen compounds and sulfur compounds. Therefore, as shown in FIG. 7B, this deodorant 491 is placed near the heater 430 for regeneration,
When the heat storage material 410 is interposed between 0 and the regeneration heater 430, the temperature quickly rises during regeneration of the heat-of-adsorption type heat storage material 410, so that the adsorbed components are efficiently oxidized and decomposed without being desorbed.

[0030]

The regenerative warm air heater according to the present invention has the following features.
Heat storage having a hot air heater that uses the air sucked by the blower as the first hot air, and an adsorption heat type heat storage material that uses the air sucked by the second blower to make the air a second hot air. A regenerative heater for regenerating the adsorption heat type heat storage material, and a mixing chamber for mixing the first hot air and the second hot air , wherein the adsorption heat type heat storage material is provided.
Is surrounded by a molded ceramic body that does not adsorb moisture
I have. For this reason, it is possible to supply warmer air than a type using only sensible heat as in a conventional heat storage type hot air heater or a type using only hot air heaters.
Also, according to this, the heat resistance and heat insulation properties of the adsorption heat type heat storage material
Heating efficiency during regeneration of adsorption heat type heat storage material
Is improved. In addition, the ceramic molded body itself
It can also be used as a heat storage material.

A heat storage type according to claim 2 or 3
According to the hot air heater, the second heat generated from the adsorption heat type heat storage material
Hot air does not adversely affect the hot air heater. sand
In other words, it has a positive self-temperature control function as a hot air heater
When a ceramic heater is used, the supplied air
There is a problem that the calorific value decreases when the temperature is high.
With this configuration, the second warm air enters the warm air heater side.
Efficient use of hot air heaters
Can be. Therefore, it occurs at the time of regeneration of the adsorption heat type heat storage material.
Moistured air causes condensation around hot air heater
Not even. This prevention of dew condensation is described in claim 4.
Countermeasures have also been taken for the regenerative hot air heaters.

Further, in the regenerative warm air heater according to claim 5,
After the second hot air has dropped below a certain temperature,
Because it drives a blower, it blows out hot air rapidly
There is no safety.

On the other hand, in the heat storage type hot air heater according to claim 6,
Can adsorb odorous components in the air,
Cleaner hot air can be supplied for higher comfort.
Obtainable.

Furthermore, a regenerative warm air heater according to claim 7
The regenerative heater has multiple radiating fins
So that the heat of adsorption heat storage material can be evenly heated.
You.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of a heat storage type hot air heater according to a first embodiment of the present invention.

FIG. 2 is a side view showing a schematic configuration of a heat storage type hot air heater according to the first embodiment.

FIG. 3 is a front view showing a schematic configuration of a heat storage type hot air heater according to a second embodiment of the present invention.

FIG. 4 is a side view showing a schematic configuration of a heat storage type hot air heater according to a second embodiment.

FIG. 5 is a front sectional view showing a schematic structure of a heat storage tank of the heat storage type hot air heater according to the present invention.

FIG. 6 is a side view showing a schematic structure of a heat storage tank of the heat storage type hot air heater according to the present invention.

FIG. 7 is a cross-sectional view illustrating a schematic configuration of a heat storage tank according to another embodiment.

FIG. 8 is a partially cutaway perspective view of a conventional heat storage type hot air heater using sensible heat.

FIG. 9 is a cross-sectional view showing a schematic configuration of a conventional hot air heater that does not use a heat storage material.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 Main unit 110 Mixing chamber 210 First blower 211 First blower duct 212 Outlet 220 Second blower 221 Second blower duct 230 Third blower duct 300 Hot air heater 400 Heat storage tank 410 Adsorption heat type heat storage material 430 Regeneration heater WA ₁ the first hot air WA ₂ second warm air CA _1, CA ₂ air

Claims (7)

(57) [Claims] 1. A hot air heater that uses air sucked by a first blower as a first hot air, and an adsorption device that sucks moisture of the air sucked by a second blower to make the air a second hot air. A heat storage tank having a heat type heat storage material, a regeneration heater for regenerating the adsorption heat type heat storage material, and a mixing chamber for mixing the first warm air and the second warm air .
The heat storage material is a ceramic that does not adsorb moisture.
A regenerative warm air heater characterized by being surrounded by a molded body . 2. A first blower for supplying a first warm air to a mixing chamber.
The second hot air communicates with the mixing chamber through the outlet at the end of the
Characterized in that it is provided above the third ventilation duct
The regenerative warm air heater according to claim 1 . 3. A first blower for supplying a first warm air to a mixing chamber.
The second hot air communicates with the mixing chamber through the outlet at the end of the
To the hot air outlet side of the mixing chamber from the third air duct
The regenerative warm air heater according to claim 1, characterized in that: 4. The method according to claim 1, wherein the heat storage material is heated by a heater for regeneration.
In the case of regeneration by heating, moisture from the heat of adsorption heat storage material
Is higher than a preset first predetermined temperature
And rotating the second blower at a low speed.
Item 4. A heat storage type warm air heater according to Item 1, 2 or 3 . 5. The apparatus according to claim 1, wherein the second blower is provided with a heat storage material of an adsorption heat type.
Until the second hot air drops below the second preset temperature
The second blower is not driven and automatically
3. The method according to claim 1, wherein
The heat storage type warm air heater according to 3 or 4 . 6. The heat storage tank is provided with an acid separately from the adsorption type heat storage material.
Characterized by being packed with a deodorant carrying a catalyst
The heat storage type warm air heater according to claim 1, 2, 3, 4 or 5 . 7. The air blown by the first blower is
A hot air heater for the first hot air and a second air blower
The air is absorbed by absorbing the moisture of the air
A heat storage tank having an adsorption heat type heat storage material having
A regeneration heater for regenerating the heat of adsorption heat storage material;
A mixing chamber for mixing the first hot air and the second hot air;
The heat storage material is a ceramic that does not adsorb moisture.
And the heater for regeneration is
A regenerative hot air heater comprising a plurality of radiating fins .