JPH0968352A - Electric thermal storage type heating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase heat radiation air volume at the time of starting thermal storage heating operation in order to raise room temperature in a short while. SOLUTION: A draft passage 6 is formed in a main body 1 by a thermal storage unit 4 and a plurality of thermal storage members 10 are provided in such a manner that a plurality of within-thermal-storage draft passages 9 are formed in parallel with each other in an interior of a thermal storage space 8 in the thermal storage unit 4, and a radiant thermal storage heater 11 is provided in the within-thermal-storage draft passages 9 between the thermal storage members 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heat storage heater having a heat storage section.

[0002]

2. Description of the Related Art In recent years, with the use of electric heat storage heaters that increase the heating effect by releasing the heat previously stored in a heat storage unit at the start of operation, there is an increasing demand for increasing the amount of heat radiation to raise the room temperature in a short time. Is coming.

Conventionally, as an electric heat storage heater of this type, FIG.
The configuration as shown in (1) was realized. The configuration will be described below with reference to FIG.

As shown in the figure, a suction passage 101 is formed in a main body 103 having a suction opening 101 and an outlet 102, and a ventilation passage 105 is formed through a blower fan 104. A heat storage unit 106 having a sheathed heater embedded in a heat storage layer was provided on the 101 side, and a warm air unit 107 composed of a positive temperature coefficient thermistor was provided on the blowout port 102 side of the ventilation passage 105.

With the above configuration, when performing the heat storage heating operation, first, the heat storage unit 106 is energized for 3 to 4 hours to store heat. Next, the heat stored in the heat storage unit 106 was released, and the hot air unit 107 was also energized to reheat and generate hot air.

[0006]

In such a conventional electric heat storage heater, a heat storage unit in which a sheathed heater is embedded in the heat storage layer is provided, so the heat storage amount is small and the air flow cannot be increased. There was a problem that it took time for the temperature of the room to rise at the start of heat dissipation.

When a radiant heater covered with a quartz tube glass is used to heat the heat storage layer, impurities such as alkaline earth elements such as Na and K and metals or metal compounds such as Al and Fe are used on the surface of the quartz tube glass. However, when the temperature of the quartz glass is further increased to 1000 ° C. or more, the surface of the quartz glass is changed to cristobalite in a crystalline state, and the quartz glass is in a devitrified state, which is fragile and easily broken.

SUMMARY OF THE INVENTION The first object of the present invention is to provide an electric heat storage heater capable of raising the room temperature in a short time by increasing the amount of radiated air at the start of the heat storage heating operation.

A second object is to increase the amount of ventilation that comes into contact with the heat storage material to improve the heat exchange efficiency.

A third object is to increase the heat storage and heat dissipation of the heat storage material. A fourth object is to enhance the heating effect and prevent the quartz tube from cracking due to the devitrification phenomenon.

[0011]

In order to achieve the first object, the electric heat storage heater of the present invention has a first means, a main body having a suction port and an outlet port, and the suction unit in the main body. An air passage formed by a blower that blows the air sucked from the mouth to the outlet through the heat storage unit, a heat storage space portion formed in the heat storage unit by being surrounded by a heat insulating material and communicating with the air passage, and the heat storage A plurality of heat storage materials provided so that a plurality of heat storage inner ventilation passages are formed in parallel in the space portion, a radiant heat storage heater provided in the heat storage inner ventilation passages between the heat storage materials, and the air outlet passage-side ventilation passages. And a warm air heater provided in the heat storage member, and the plurality of heat storage materials are surrounded by a plurality of heat storage inner ventilation passages.

In order to achieve the second object, the second means is that in addition to the first means, the heat storage material is formed in a rectangular parallelepiped formed by a hexahedron, and four surfaces having a large area are provided in the heat storage inner ventilation passage. And provided.

Further, in order to achieve the third object, the third means has a structure in which, in addition to the first means, unevenness is formed on the surface of the heat storage material so as to increase the heat receiving and radiating area.

Further, in order to achieve the fourth object, in addition to the first means, the fourth means has a structure in which an inorganic coating material is applied to the surface of the quartz tube forming the radiation heat storage heater.

[0015]

According to the present invention, by the constitution of the above-mentioned first means, a large amount of heat is dissipated because the heat stored in the plurality of heat storage materials is dissipated through the plurality of heat storage inner ventilation passages provided in parallel at the start of the heat storage heating operation. It becomes possible to raise the room temperature in a short time.

Further, due to the constitution of the second means, the amount of ventilation which comes into contact with the heat storage material is increased.

Further, by the structure of the third means, the surface area of the heat storage material is increased, so that the amount of heat received and the amount of heat released are increased.

Further, by the construction of the fourth means, far infrared rays are radiated to improve the heating efficiency, and the devitrification phenomenon which occurs in the quartz tube due to the scattered substances from the heat storage material is prevented.

[0019]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in the figure, a box-shaped main body 1 is provided with a suction port 2 and a blowout port 3 and is formed by a blower 5 for blowing the air sucked from the suction port 2 into the blowout port 3 through the heat storage unit 4 in the main body 1. The ventilation passage 6 is provided, and the heat storage space portion 8 that is surrounded by the heat insulating material 7 and communicates with the ventilation passage 6 is provided in the heat storage unit 4.

A plurality of heat storage materials 10 made of bricks or the like are arranged side by side in the heat storage space portion 8, and a plurality of heat storage inner ventilation passages 9 are formed in parallel around the heat storage material 10. Heat storage material 1
In 0, the four surfaces (front surface, back surface, upper surface, lower surface) having a larger area among the six surfaces are arranged so as to face the heat storage inner ventilation passage 9.

A radiant heat storage heater 11 made of a quartz tube or the like is provided in the heat storage internal ventilation passage 9 between the heat storage materials 10, and a warm air heater 12 made of a nichrome heater is provided in the ventilation passage 6 on the outlet 3 side. .

In the above structure, when the heat storage operation is performed, the radiant heat storage heater 11 is energized for about 1 hour to heat the plurality of heat storage materials 10 by the radiant heat storage heater 11 to store heat.

Next, at the time of heat radiation operation, the radiation heat storage heater 1
1 is energized, the air sucked from the suction port 2 provided in the main body 1 is blown from the ventilation passage 6 to the plurality of heat storage inner ventilation passages 9 in the heat storage unit 4, and the heat storage material 10 has four large surface areas. The blown air comes into contact with the heat storage material 10, is warmed by the heat radiated from the heat storage material 10, passes through the ventilation passage 6 from the heat storage unit 4, and is diffused from the air outlet 3 to perform heating.

Then, heating of the heat storage material 10 is continued by the radiant heat storage heater 11 provided between the heat storage material 10, and the air passing through the heat storage inner ventilation passage 9 provided with the radiant heat storage heater 11 is caused by the heat storage material 10. In addition to heating, the radiant heat storage heater 11 directly heats the blower 5
A large amount of air sent from the air is warmed and diffused from the air outlet 3 to perform heating.

Further, by energizing the hot air heater 12, the air heated by the heat storage material 10 and the radiant heat storage heater 11 is further heated, and a large heating capacity can be exhibited from the start of heat radiation. .

As described above, according to the electric heat storage heater of the first embodiment of the present invention, the plurality of heat storage materials 10 are provided in the heat storage unit 4.
Since a plurality of heat storage internal ventilation passages 9 are provided so as to surround the
The amount of ventilation can be increased, and the amount of radiated air at the start of the heat storage heating operation can be increased to raise the room temperature in a short time.

Further, since the four large surface areas of the heat storage material 10 formed in the rectangular parallelepiped formed by the hexahedron are brought into contact with the air to be blown, the heat exchange efficiency is improved and the ventilation amount can be increased.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, an arc-shaped concave portion 14 is provided along the outer surface of the radiant heat storage heater 11 so as to increase the heat receiving / radiating area on the surface of the heat storage material 10A corresponding to the radiant heat storage heater 11. The surface of 10A is formed in an uneven shape.

With the above structure, a large amount of heat radiated from the radiant heat storage heater 11 is received by the concave portion 14 having a shape corresponding to the outer surface of the radiant heat storage heater 11, and the concave portion 1
The uneven surface of the heat storage material 10A having an increased area by 4 is heated and stored in the heat storage material 10A, and the heat storage material 10A is radiated.
Heat is radiated from the surface of.

As described above, according to the electric heat storage heater of the second embodiment of the present invention, since the surface of the heat storage material 10A corresponding to the radiant heat storage heater 11 is formed in a concavo-convex shape, The amount of heat received is increased and the heat storage efficiency is increased, and since heat is dissipated from a large area even during heat dissipation, heat dissipation efficiency is also improved.

(Third Embodiment) A third embodiment of the present invention will be described below with reference to FIGS. 4 and 5. In addition,
The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, the radiation heat storage heater 11A
Inorganic paint 1 made of a metal oxide (S ₁ O ₂ , MgO ₂ ) such as silica magnesium on the surface of the quartz tube 15 forming
6 is applied.

A heater wire 17 is spirally wound and housed inside the quartz tube 15. With the above configuration, far infrared rays are emitted from the radiant heat storage heater 11A in addition to infrared rays, and the air and the heat storage material 10 are effectively heated.

The surface of the heat storage material 10 provided corresponding to the radiant heat storage heater 11A gradually deteriorates due to heating and ventilation, and particles of the heat storage material 10 scatter and adhere to the radiant heat storage heater 11A. Inorganic paint on the surface of 16
Since it is applied, it does not directly adhere to the quartz tube 15.

As described above, according to the electric heat storage heater of the third embodiment of the present invention, since the radiant heat storage heater 11A in which the surface of the quartz tube 15 is coated with the inorganic paint 16 is used, far infrared rays are radiated and heated. The heat storage material 1 which is provided corresponding to the radiation heat storage heater 11A while enhancing the effect
Even if particles are scattered from 0 and adhere, the phenomenon that the quartz tube 15 becomes brittle and easily broken even if the quartz tube 15 is devitrified can be prevented by the inorganic paint 16 applied to the quartz tube 15.

[0037]

As is apparent from the above embodiments, according to the present invention, the main body having the suction port and the air outlet, and the air sucked from the suction port into the main body are blown out through the heat storage unit. A ventilation path formed by a blower that blows to
A heat storage space portion surrounded by a heat insulating material in the heat storage unit and formed to communicate with the ventilation passage, and a plurality of heat storage materials provided so that a plurality of heat storage inner ventilation passages are formed in parallel in the heat storage space portion, A radiant heat storage heater provided in a heat storage inner communication passage between the heat storage materials and a warm air heater provided in the air passage on the outlet side are provided, and the plurality of heat storage materials are surrounded by a plurality of heat storage inner ventilation passages. With this configuration, it is possible to provide an electric heat storage heater capable of increasing the amount of radiated air at the start of the heat storage heating operation to raise the room temperature in a short time.

Further, since the heat storage material is formed in a rectangular parallelepiped consisting of hexahedrons, and four surfaces having a large area are provided facing the ventilation passage in the heat storage material, the amount of ventilation that contacts the heat storage material is increased to improve heat exchange efficiency. Can be increased.

Further, since the surface of the heat storage material is provided with the unevenness for increasing the area for receiving and radiating heat, the heat storage and heat radiation of the heat storage material can be increased.

Further, since the surface of the quartz tube forming the radiant heat storage heater is coated with an inorganic substance, it is possible to enhance the heating effect and prevent the phenomenon that the quartz tube is devitrified and easily cracked.

[Brief description of drawings]

FIG. 1 is a sectional view showing a configuration of an electric heat storage heater according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a heat storage material of the electric heat storage heater of the first embodiment.

FIG. 3 is a sectional view showing the configuration of the electric heat storage heater of the second embodiment.

FIG. 4 is a sectional view showing the configuration of an electric heat storage heater of the third embodiment.

FIG. 5 is a cross-sectional view showing the structure of a quartz tube of a radiant heat storage heater of an electric heat storage heater according to the third embodiment.

FIG. 6 is a sectional view showing a configuration of a conventional electric heat storage heater.

[Explanation of symbols]

 1 Main Body 2 Suction Port 3 Blowout Port 4 Heat Storage Unit 5 Blower 6 Ventilation Path 7 Insulation Material 8 Heat Storage Space Section 9 Heat Storage Inner Ventilation Path 10, 10A Heat Storage Material 11, 11A Radiant Heat Storage Heater 12 Hot Air Heater 14 Recess 15 Quartz Tube 16 Inorganic Material paint

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Takeyama 6-2-1, Imafukunishi, Joto-ku, Osaka City, Osaka Prefecture Matsushita Seiko Co., Ltd.

Claims (4)

[Claims] 1. A main body having an inlet and an outlet, an air passage formed by a blower for blowing the air sucked from the inlet to the outlet through a heat storage unit, and the heat storage unit. A heat storage space portion surrounded by a heat insulating material and formed to communicate with the ventilation passage, a plurality of heat storage materials provided so that a plurality of heat storage inner ventilation passages are formed in parallel in the heat storage space portion, and the heat storage material A radiant heat storage heater provided in a heat storage inner ventilation passage, and a warm air heater provided in the blower outlet side ventilation passage, and configured to surround the plurality of heat storage materials by a plurality of heat storage inner ventilation passages Electric heat storage heater. 2. The electric heat storage heater according to claim 1, wherein the heat storage material is formed in a rectangular parallelepiped formed of a hexahedron, and four surfaces having a large area are provided so as to face a ventilation passage in the heat storage. 3. The electric heat storage heater according to claim 1, wherein the heat storage material has irregularities formed on the surface thereof to increase a heat receiving and radiating area. 4. The electric heat storage heater according to claim 1, wherein an inorganic paint is applied to the surface of the quartz tube forming the radiant heat storage heater.