JPH094926A - Heat storage combustion heater - Google Patents

Abstract

PURPOSE: To increase the amount of storage heat and improve heat insulation performance by heating a heat storage member to high temperature with a high temperature combustion gas. CONSTITUTION: This heater is provided with a burner 12, a combustion cylinder 13 disposed to surround a combustion part of the burner, a convection fan 15 for feeding warm air into a room, a heat storage member 19 disposed on the backstream side in the combustion cylinder 13, and a heat insulation member 20 provided on the upper part of the heat insulation member 19. Since the heat storage member 19 is heated to a high temperature with combusted high temperature gas, the amount of heat storage is increased and heat is insulated with the heat insulation member 20 on the upper part of the heat storage member so that a heat radiation operation can be effected after a while the interruption of the combustion operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage combustion heating apparatus capable of heating indoor air to warm air by combustion, and also heat storage of a heat storage member to heat the heat storage member to warm air.

[0002]

2. Description of the Related Art Conventionally, a heat storage combustion heating device of this type is shown in FIG.
As shown in FIG. 1, a burner 2 in a main body casing 1 and a combustion cylinder 3 arranged so as to surround a combustion portion of the burner 2.
A burner fan 4 for supplying combustion air to the burner 2,
A convection fan 5 for sucking in and blowing out indoor air, guides 6 and 6'for restricting the flow direction of the air flow by the convection fan 5, and an exhaust gas-air mixing portion 7 formed by the guides 6, 6 '. And a heat storage member 8 disposed in the mixing unit 7, a warm air outlet 9 from which warm air is blown, and a control unit 10 which controls combustion and operation of a convection fan.

When the combustion air is supplied by the burner fan 4 and the burner 2 is burned, the exhaust gas is discharged from the outlet of the combustion tube 3 and reaches the mixing section 7. On the other hand, the air flow supplied from the convection fan 5 has its flow direction regulated by the guides 6 and 6 ', reaches the mixing section 7, and is mixed with the exhaust gas. The heat storage member 8 is heated by the mixed flow, and the mixed flow is then blown out as hot air from the hot air outlet 9. When combustion stops, convection fan 5
The supplied airflow receives heat from the heat storage member 8 and continues to generate warm air for a certain period of time after combustion.

[0004]

However, in the above-mentioned conventional configuration, the high temperature exhaust gas obtained by combustion is mixed with the low temperature air flow supplied from the convection fan 5, and the heat storage member 8 is heated after the temperature decreases. Therefore, there is a problem in that the temperature of the heat storage member 8 does not rise sufficiently and therefore the amount of heat storage is reduced, and because the heat storage member 8 is not thermally insulated, heat is radiated and cooled immediately after the combustion is stopped.

The present invention is intended to solve the above problems, and it is a first object of the present invention to heat a heat storage member to a high temperature with a high temperature combustion gas to increase the amount of heat storage.

A second object is to improve the heat retention performance of the heat storage member. A third object is to improve the heat retention performance of the heat storage member while increasing the amount of heat storage.

A fourth object is to improve the heat retention performance of the heat storage member while increasing the heat transfer area.

A fifth object is to increase the temperature of the heat storage member and improve the heat retention performance while increasing the amount of the heat storage member.

A sixth object is to increase the amount of the heat storage member and increase the efficiency of raising the temperature of the heat storage member.

A seventh object is to improve the ignition performance by increasing the amount of the heat storage member and raising the temperature of the combustion section.

An eighth object is to effectively purify the combustion gas at the time of ignition and extinction.

[0012]

In order to achieve the first object of the present invention, the heat storage combustion heating apparatus of the present invention comprises a burner, a combustion cylinder arranged so as to surround the combustion section, and It is composed of a convection fan that sends air into the room, a heat storage member that is arranged on the downstream side of the combustion cylinder, and a heat insulating material that is provided above the heat storage member.

In order to achieve the second object, according to the present invention, a heat storage member whose upper and side portions are covered with a heat insulating material is arranged in the vicinity of an upper portion of an exhaust port of a combustion cylinder, and the heat storage member and the combustion are combusted. The configuration is such that a shielding plate that prevents the inflow of an air flow supplied from a convection fan is provided between the exhaust ports of the cylinders.

In order to achieve the third object, the present invention secures an exhaust gas passage by extending the lower end of the heat insulating material provided on the side surface of the heat insulating material covering the upper and side surfaces of the heat storage member. In addition, it is configured to cover a part of the combustion cylinder.

Further, in order to further increase the heat transfer area,
A part of the heat storage member is arranged inside the combustion cylinder, the upper part of the heat storage member is covered with a heat insulating material, and the heat insulation material for the side surface portion covers the part of the combustion cylinder from the outside while ensuring the exhaust gas passage. In addition, the lower end of the heat insulating material is extended at least equal to or more than the lower surface of the heat storage member.

Further, in order to achieve the fourth object, the present invention provides a heat insulating container connected to the upper portion of the exhaust port of the combustion cylinder, and a gap capable of forming exhaust gas passages vertically and horizontally in the heat insulating container. The heat storage member is provided, a discharge port provided at a lower part of one end of the heat insulating container, and a heat insulating partition plate for preventing a short circuit between the exhaust port and the discharge port.

Further, in order to achieve the fifth object, according to the present invention, a plurality of divided heat storage members are provided in the heat insulating container connected to the upper portion of the exhaust port of the combustion cylinder so that the side surface becomes the exhaust gas passage. And a heat insulating partition plate for preventing a short circuit between the exhaust port and the discharge port.

Further, in order to achieve the sixth object, the present invention is such that between a plurality of divided heat storage members in the heat insulating container connected to the upper portion of the exhaust port of the combustion tube, and between the heat storage member and the side wall of the heat insulating container. , Is provided with a meandering guide.

Further, in order to achieve the seventh object, according to the present invention, a combustion cylinder whose upper and side surfaces are formed of a heat storage member, an exhaust port provided on an upper side surface of the combustion cylinder, and an exhaust port from this exhaust port are provided. The structure is made of a heat insulating material that covers the combustion cylinder while ensuring an exhaust passage.

In order to achieve the eighth object, the present invention has an exhaust gas purifying catalyst on the surface of the heat storage member that comes into contact with the exhaust gas.

[0021]

According to the present invention which achieves the first object, when the burner is burned by the above structure, the exhaust gas rises in the combustion cylinder and reaches the lower surface of the heat storage member, and is burned in the process of moving along the lower surface. Heat is transferred to the heat storage member for heating. Further, the exhaust gas ascends the side surface of the heat storage member to transfer the combustion heat to the heat storage member for heating, is discharged from the outlet of the combustion cylinder, is mixed with the air flow supplied from the convection fan, and is blown out as warm air. When the combustion is stopped, heat is prevented from being radiated from the upper surface by the heat insulating material above the heat storage member to keep the heat. Next, when the heat radiation operation is started, the air flow supplied from the convection fan or the like passes through the combustion cylinder to receive heat from the heat storage member and is blown out as warm air.

According to the present invention that achieves the second object, the exhaust gas generated by the combustion of the burner rises in the combustion cylinder and is discharged from the combustion cylinder outlet. The exhaust gas is not diluted by the air flow supplied from the convection fan by the shield plate and reaches the lower surface of the heat storage member arranged near the outlet while maintaining a high temperature,
Combustion heat is transferred to the heat storage member for heating. After that, it is mixed with the air flow supplied from the convection fan and blown out as warm air. When the combustion is stopped, heat is prevented from being radiated from the upper surface and the side surface by the heat insulating material on the upper and side surfaces of the heat storage member, so that the heat is more efficiently kept.

According to the present invention which achieves the third object, the exhaust gas discharged from the outlet of the combustion cylinder by the combustion of the burner reaches the lower surface of the heat storage member arranged in the vicinity of the outlet by the above structure, and along this lower surface. The heat of combustion is transferred to the heat storage member to be heated in the process of moving. Further, the exhaust gas descends along the lower wall surface of the heat insulating material that covers the side surface of the heat storage member, and is then mixed with the air flow supplied from the convection fan and blown out as warm air. When the combustion is stopped, the heat insulating material on the upper and side surfaces of the heat storage member prevents heat radiation from the upper and side surfaces, and the heat transfer from the lower surface is prevented by convection of air by the lower end extension wall of the side heat insulating material. Only the heat conduction and radiation of will be kept and the heat will be kept more efficiently.

In still another configuration, the exhaust gas heats the heat storage member while moving along the lower surface and the side surface of the heat storage member, and then descends in the exhaust gas passage. When the combustion is stopped, the heat insulation from the upper surface of the heat storage member prevents the heat radiation from the upper surface, and the heat transfer from the side surface and the lower surface is prevented from convection of the air by the side surface heat insulating material, and only the heat conduction and the radiation of the air, It is more efficiently kept warm.

According to the present invention which achieves the fourth object, the exhaust gas discharged from the combustion tube outlet due to the combustion of the burner flows into the heat insulating container connected to the upper portion of the exhaust port by the above structure, and this heat insulating container The exhaust gas passage formed between the inner wall and the heat storage member is sequentially moved from the bottom to the lower surface of the heat storage member,
The side surface, the upper surface, and the opposite side surface are efficiently heated and discharged from the discharge port. After that, it is mixed with the air flow supplied from the convection fan and blown out as warm air. When the combustion is stopped, the air remaining in the heat insulating container is heated, but since convective replacement with the outside air does not occur, the temperature is kept more efficiently.

According to the present invention which achieves the fifth object, the exhaust gas discharged from the combustion tube outlet by the combustion of the burner flows into the heat insulating container connected to the upper portion of the exhaust port by the above structure, and this heat insulating container It passes through the exhaust gas passages formed between the inner wall and the side wall of the heat storage member and between the side walls of the heat storage member, is efficiently heated from the side surface of the heat storage member, and is discharged from the discharge port. After that, it is mixed with the air flow supplied from the convection fan and blown out as warm air. When the combustion is stopped, the air remaining in the heat insulating container is heated, but since convective replacement with the outside air does not occur, the temperature is kept more efficiently.

According to the present invention which achieves the sixth object, the exhaust gas discharged from the combustion cylinder outlet by the combustion of the burner flows into the heat insulating container connected to the upper portion of the exhaust port by the above structure, and this heat insulating container Between the inner side wall and the side wall of the heat storage member and between the side walls of the heat storage member, the meandering guides arranged in the exhaust gas passage make the flow turbulent, and the heat transfer surface is effectively used. Efficiently heated from the side and discharged from the outlet.

According to the present invention which achieves the seventh object, the combustion gas produced by the combustion of the burner heats the upper surface and the side surface of the combustion cylinder formed by the heat storage member, and is provided on the upper side surface of the combustion cylinder. It is discharged from the exhaust port. The exhaust gas flows down through the gap formed between the combustion cylinder and the heat insulating material, further heats the heat storage member and is discharged, and is then mixed with the air flow supplied from the convection fan and blown out as warm air. When the combustion is stopped, heat is prevented from being radiated from the upper surface and the side surface by the heat insulating material on the upper and side surfaces of the heat storage member.
Here, the combustion part of the burner is maintained at a high temperature by the radiant heat from the combustion cylinder, etc., and the ignition performance at the time of subsequent ignition is improved.

According to the present invention which achieves the eighth object, the exhaust gas of the combustion generated by the combustion of the burner comes into contact with the heat storage member to supply heat to the heat storage member. The exhaust gas purification catalyst layer removes harmful substances in the exhaust gas. Even after the combustion is stopped, the heat storage member is kept warm and is kept at a high temperature for a while, so that the harmful substances in the combustion exhaust gas at the time of the next ignition are efficiently removed.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention having the first object will be described below with reference to FIG.

In FIG. 1, reference numeral 11 denotes a main body casing, which has a burner 12 inside, a combustion cylinder 13 arranged so as to surround a combustion portion of the burner 12, and a burner fan 14 for supplying combustion air to the burner 12. A convection fan 15 for sucking in and blowing out indoor air, a shield plate 16 for restricting the flow direction of the air flow by the convection fan 15, and an exhaust gas and air mixing portion 17 formed behind the shield plate 16.
A hot air outlet 18 from which hot air is blown, a heat storage member 19 arranged near the outlet in the combustion tube 13, and a heat insulating material 20 provided so as to cover the upper portion of the heat storage member 19.
It is composed of

In the above structure, when the combustion air is supplied by the burner fan 14 to burn the burner 12,
The exhaust gas rises in the combustion cylinder 13 and reaches the lower surface of the heat storage member 19, and in the process of moving along the lower surface, the combustion heat is transferred to the heat storage member 19 for heating. Furthermore, exhaust gas is the heat storage member 1
While raising the side surface of 9 to transfer and heat combustion heat to the heat storage member 19, the air is discharged from the outlet of the combustion tube 13, is supplied from the convection fan 15, and is guided by the shielding plate 16 and the mixing section 17. Hot air outlet 1 mixed with hot air
Blow out from 8. When the combustion is stopped, the heat storage member 19
The heat insulating material 20 in the upper part of the upper part prevents heat radiation from the upper surface and keeps it warm. Next, when the heat radiation operation is started, the convection fan 1
The air flow supplied from 5 and the like passes through the combustion cylinder 13 and receives heat from the heat storage member 19 to be blown out as warm air.

Here, since the combustion exhaust gas heats the heat storage member 19 to a high temperature by the high temperature gas that is not diluted with the air from the convection fan 15, the heat storage amount is increased and the heat insulating material 20 above the heat storage member 19 is achieved. Since the temperature is maintained by, the heat radiation operation can be started after a while after the combustion operation is stopped.

FIG. 2 shows an embodiment of the present invention for a second object, in which the heat storage member 1 whose upper and side portions are covered with a heat insulating material 21.
9 is disposed in the vicinity of the upper portion of the exhaust port of the combustion cylinder 13, and is provided with a shield plate 16 for preventing the inflow of the air flow supplied from the convection fan 15 between the heat storage member 19 and the exhaust port of the combustion cylinder 13. Has been done. Reference numerals 11 to 18 denote the same constituent members as in FIG.

In the above structure, the exhaust gas produced by the combustion of the burner 12 rises in the combustion cylinder 13 and is discharged from the outlet of the combustion cylinder 13. Exhaust gas is shielded by the shield plate 16 from the convection fan 1
The air flow supplied from 5 reaches the lower surface of the heat storage member 19 disposed near the outlet without being diluted and remains high temperature, and transfers heat of combustion to the heat storage member 19 to heat it. After that, it is mixed with the air flow supplied from the convection fan 15 in the mixing section 17, and is blown out from the warm air blowing port 18 as warm air. When the combustion is stopped, the heat insulating members 21 on the upper and side surfaces of the heat storage member 19 prevent heat from being released from the upper and side surfaces and keep the temperature.

Here, since the combustion exhaust gas heats the heat storage member 19 to a high temperature by the high temperature gas that is not diluted with the air from the convection fan 15, the amount of heat storage is increased, and at the same time, the upper and side surfaces of the heat storage member 19 are increased. The heat insulating material 21 prevents heat radiation from the upper surface and side surfaces and keeps the heat more efficiently, so that the heat radiation operation can be performed even after a while after the combustion operation is stopped.

FIG. 3 shows the third embodiment of the present invention, in which the lower end of the heat insulating material 23 provided on the side surface of the heat insulating material 22 covering the upper portion and the side surface of the heat storage member 19 is extended.
It is configured to cover a part of the combustion cylinder 13 while ensuring an exhaust gas passage.

In the above structure, the exhaust gas discharged from the outlet of the combustion cylinder 13 by the combustion of the burner 12 reaches the lower surface of the heat storage member 19 disposed near the outlet, and burns in the process of moving along the lower surface. The heat is transferred to the heat storage member 19 to heat it. Further, the exhaust gas descends along the lower wall surface of the heat insulating material 23 that covers the side surface of the heat storage member 19, and is then mixed with the air flow supplied from the convection fan 15 and blown out as warm air.

When the combustion is stopped, the heat insulating members 22 and 23 on the upper and side surfaces of the heat storage member 19 prevent heat radiation from the upper and side surfaces, and the heat transfer from the lower surface is below the side surface heat insulating material 23. Convection of air is prevented by the end extension wall, and only heat conduction and radiation of air are provided, so that the temperature is kept more efficiently.

FIG. 4 shows another embodiment, in which a part of the heat storage member 19 is arranged in the combustion cylinder 13, the upper part of the heat storage member 19 is covered with a heat insulating material 22, and a heat insulating material 23 for the side surface portion is provided. Covers at least a part of the combustion cylinder 13 from the outside while ensuring the exhaust gas passage, and at least the lower end of the heat insulating material 23 is at least the heat storage member 19
It is configured to extend more than the bottom surface of.

In the above structure, the exhaust gas is the heat storage member 1.
The heat storage member 19 is heated while moving along the lower surface and the side surface of 9, and then the exhaust gas passage is lowered. When the combustion is stopped, the heat insulating material 22 above the heat storage member 19 prevents heat radiation from the upper surface, and the heat transfer from the side surface and the lower surface is reduced by the side surface heat insulating material 23 to prevent air convection.

Here, since the exhaust gas can also heat the side surface of the heat storage member 19, the heat storage amount can be increased, and the heat is radiated from the side surface of the heat storage member 19 during heat retention only by heat conduction and radiation of air due to prevention of air convection. And is kept warm efficiently.

FIG. 5 shows the fourth embodiment of the present invention, in which the heat insulating container 2 connected to the upper portion of the exhaust port 24 of the combustion tube 13 is connected.
5 and the exhaust gas passage 2 vertically and horizontally in the heat insulating container 25.
6, a heat storage member 19 provided with a gap that can form 6
And a discharge port 27 provided at the lower part of one end of the heat insulating container 25, and a heat insulating partition plate 28 for preventing a short circuit between the exhaust port 24 and the discharge port 27.

In the above structure, the exhaust gas discharged from the outlet of the combustion cylinder 13 by the combustion of the burner 12 is the exhaust port 2
4 flows into the heat insulating container 25 continuously provided, and the exhaust gas passage 26 in the heat insulating container 25 is sequentially moved from the bottom,
The lower surface, the side surface, the upper surface, and the opposite side surface of the heat storage member 19 are efficiently heated and discharged from the discharge port 27. After that, it is mixed with the air flow supplied from the convection fan 15 and blown out as warm air. When the combustion is stopped, the air remaining in the heat insulating container 25 is heated, but since the convective replacement with the outside air does not occur, the temperature is kept more efficiently.

Here, since the upper and lower surfaces and side surfaces of the heat storage member 19 are used as heat transfer surfaces, the heat transfer area can be increased and the amount of heat storage can be increased. Since it is wrapped in, it is possible to improve the heat retention performance.

FIGS. 6 and 7 show a fifth embodiment of the present invention, in which a plurality of divided heat storage members 29 are provided in a heat insulating container 25 connected to the upper portion of the exhaust port 24 of the combustion tube 13. The exhaust gas passage 3 has side surfaces formed between the heat insulating container 25 and the side walls of the heat storage member 29 and between the side walls of the heat storage member 29.
The heat insulating container 25 is provided with a discharge port 27 provided at the lower part of one end of the heat insulating container 25, and a heat insulating partition plate 28 for preventing a short circuit between the exhaust port 24 and the discharge port 27.

In the above structure, the exhaust gas discharged from the outlet of the combustion tube 13 by the combustion of the burner 12 flows into the inside of the heat insulating container 25 connected to the exhaust port 24, and the exhaust gas passage in the heat insulating container 25 is provided. After passing through 30, the heat storage member 2
The side surface 9 is heated and discharged from the discharge port 27. After that, it is mixed with the air flow supplied from the convection fan 15 and blown out as warm air. Insulation container 25 when combustion stops
The air remaining inside is heated, but since convective replacement with the outside air does not occur, it is more efficiently kept warm.

Here, since the heat storage member 29 is divided, the heat transfer area can be relatively increased even if the amount of the heat storage member 29 is increased, and it is possible to raise the temperature and greatly increase the heat storage amount. In addition, since the heat storage member 29 is wrapped with a heat insulating material, the heat retention performance can be improved.

FIG. 8 shows the sixth embodiment of the present invention, in which a plurality of divided heat storage members 29 in the heat insulating container 25 connected to the exhaust port 24 of the combustion tube 13 and between the heat storage members 29.
And a meandering guide 31 disposed in an exhaust gas passage (not shown) formed between the side walls of the heat insulating container 25.

In the above structure, the exhaust gas discharged from the outlet of the combustion tube 13 by the combustion of the burner 12 flows into the heat insulating container 25 connected to the exhaust port 24, and the exhaust gas passage in the heat insulating container 25 is provided. After passing through a meandering guide 31 disposed inside (not shown), the side surface of the heat storage member 29 is heated and discharged from the discharge port 27.

Here, the exhaust gas is the meandering guide 31.
Due to the turbulence, the effective contact surface of the heat transfer surface can be utilized to heat the side surface of the heat storage member more efficiently.

FIG. 9 shows a seventh embodiment of the present invention, in which a combustion cylinder 32 whose upper and side surfaces are formed of a heat storage member,
The combustion tube 32 is provided while ensuring an exhaust port 33 provided on the upper side surface of the combustion tube and an exhaust passage 34 from the exhaust port 33.
And a heat insulating material 35 that covers the.

In the above structure, the combustion gas produced by the combustion of the burner 12 heats the upper surface and the side surface of the combustion cylinder 32 formed by the heat storage member, and is discharged from the exhaust port 33 provided on the upper side surface of the combustion cylinder 32. . The exhaust gas is further discharged while heating the heat storage member while flowing down through the exhaust passage 34, and then mixed with the air flow supplied from the convection fan 15 and blown out as warm air. When the combustion is stopped, heat is prevented from being radiated from the upper surface and the side surface by the heat insulating material on the upper and side surfaces of the heat storage member.

Here, the combustion part of the burner 12 is maintained at a high temperature by the radiant heat from the combustion tube 32, etc., and the ignition performance at the time of the next ignition is improved.

FIG. 10 shows an eighth embodiment of the present invention. The surface of the heat storage member 36 that does not come into contact with the exhaust gas is the heat insulating material 3.
The exhaust gas purifying catalyst 38 is vapor-deposited on the surface which is covered with the exhaust gas 7.

In the above structure, the combustion exhaust gas generated by the combustion of the burner (not shown) is the heat storage member 36.
The exhaust gas purifying catalyst 38 of the heat storage member 36 removes harmful substances in the exhaust gas at this time.

Here, since the heat storage member is kept warm even after the combustion is stopped, the heat storage member is kept at a high temperature for a while, and the harmful substances in the combustion exhaust gas at the next ignition are efficiently removed.

In this embodiment, the high temperature gas of combustion is vertically contacted with the heat storage member. However, the present invention is not limited to this structure, and the high temperature gas of combustion is used to improve the flow of the high temperature gas of combustion. The heat storage member may be provided, for example, in an inverted triangular shape, an inverted conical shape, a convex or concave flat circular shape, or the heat storage member may be installed obliquely so that the combustion hot gas abuts at an angle other than vertical. Good.

[0059]

As described above, the heat storage combustion heating device of the present invention has the following effects.

(1) A burner, a combustion cylinder arranged so as to surround the combustion section, a convection fan for sending warm air into the room,
Since the heat storage member is provided on the downstream side of the combustion cylinder and the heat insulating material is provided on the heat storage member, the high temperature gas of combustion heats the heat storage member to a high temperature. Since the heat storage amount is increased and the heat is maintained by the heat insulating material above the heat storage member, the heat radiation operation can be performed after a while after the combustion operation is stopped.

(2) A heat storage member whose upper and side portions are covered with a heat insulating material is disposed in the vicinity of the upper portion of the exhaust port of the combustion tube, and is supplied from the convection fan between the heat storage member and the exhaust port of the combustion tube. Since it has a shield plate that prevents the inflow of air flow, the heat insulation from the top and side surfaces of the heat storage member prevents heat from radiating from the top and side surfaces and keeps the temperature more efficient. The heat dissipation operation can be started even after a while.

(3) Of the heat insulating materials for covering the upper portion and the side surface of the heat storage member, the lower end of the heat insulating material provided on the side surface is extended to cover a part of the combustion cylinder while ensuring the exhaust gas passage. Therefore, when combustion stops, heat insulation from the upper and side surfaces of the heat storage member is prevented from radiating heat from the upper surface and side surfaces, and heat transfer from the lower surface is performed by the lower end extension wall of the side surface heat insulating material. Convection of air is prevented and only heat conduction and radiation of air are provided, so that the temperature is kept more efficiently.

(4) An adiabatic container connected to the upper portion of the exhaust port of the combustion cylinder, a heat storage member provided in the adiabatic container with a gap that can form exhaust gas passages vertically and horizontally, and the adiabatic container of the adiabatic container. The upper and lower surfaces and the side surfaces of the heat storage member are used as the heat transfer surface because it is composed of the exhaust port provided at the lower part of one end and the heat insulating partition plate that prevents the exhaust port and the exhaust port from short-circuiting. Therefore, not only the heat transfer area can be increased and the heat storage amount can be increased, but also since the heat storage member is wrapped with the heat insulating material, the heat retention performance can be improved.

(5) Inside the heat insulating container connected to the upper portion of the exhaust port of the combustion tube, a plurality of divided heat storage members are arranged so that the side surfaces become exhaust gas passages, and the lower part of one end of this heat insulating container. Since the heat storage member is divided, the heat storage member is divided because it is composed of the exhaust port provided in the and the heat insulating partition plate that prevents a short circuit between the exhaust port and the exhaust port. Moreover, not only the heat transfer area can be increased, the temperature can be raised and the heat storage amount can be greatly increased, but also the heat storage performance can be improved because the heat storage member is wrapped with the heat insulating material.

(6) A meandering guide is arranged between a plurality of divided heat storage members in the heat insulating container connected to the upper portion of the exhaust port of the combustion tube, and between the heat storage member and the side wall of the heat insulating container. Therefore, the exhaust gas is made turbulent by the meandering guide, the heat transfer surface is effectively used, and the side surface of the heat storage member can be efficiently heated.

(7) A combustion cylinder whose upper and side surfaces are formed of a heat storage member, an exhaust port provided on the upper side surface of the combustion cylinder, and a heat insulating material which covers the combustion cylinder while ensuring an exhaust passage from the exhaust port. Since the burner has a burner, the combustion part of the burner is maintained at a high temperature by the radiant heat from the combustion cylinder, etc., and has the effect of improving the ignition performance at the next ignition.

(8) Since the heat storage member has the exhaust gas purifying catalyst on its surface that comes into contact with the exhaust gas, the heat storage member is kept warm even after the combustion is stopped, so that it is maintained at a high temperature for a while. Also, harmful substances in the combustion exhaust gas at the time of the next ignition are efficiently removed.

[Brief description of drawings]

FIG. 1 is a sectional view of a heat storage combustion heating device according to an embodiment of the present invention.

FIG. 2 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 3 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 4 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 5 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 6 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 7 is an enlarged side sectional view of an essential part of the heat storage combustion heating device.

FIG. 8 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 9 is a sectional view of a heat storage combustion heating device according to another embodiment of the present invention.

FIG. 10 is an enlarged cross-sectional view of a main part in another embodiment of the present invention.

FIG. 11 is a sectional view of a conventional heat storage combustion heating device.

[Explanation of symbols]

 12 burner 13 combustion cylinder 15 convection fan 16 shielding plate 19 heat storage member 20 heat insulating material

Claims (9)

[Claims] 1. A burner, a combustion cylinder arranged so as to surround a combustion portion of the burner, a convection fan for sending warm air indoors, and a heat storage member arranged on the downstream side of the combustion cylinder. And a heat storage combustion heating device including a heat insulating material provided above the heat storage member. 2. A heat storage member whose upper and side portions are covered with a heat insulating material is disposed in the vicinity of an upper portion of an exhaust port of a combustion tube, and is supplied from a convection fan between the heat storage member and the exhaust port of the combustion tube. The heat storage combustion heating device according to claim 1, further comprising a shield plate that prevents an inflow of an air flow. 3. A heat insulating material for covering an upper portion and a side surface portion of the heat storage member, wherein a lower end of the heat insulating material provided on the side surface portion is extended to cover a part of the combustion cylinder while ensuring an exhaust gas passage. The heat storage combustion heating device according to claim 1. 4. A part of the heat storage member is disposed in a combustion cylinder, and an upper portion of the heat storage member is covered with a heat insulating material. The heat storage combustion heating device according to claim 1, wherein the heat storage combustion heating device is configured to cover the portion from the outside and to extend a lower end of the heat insulating material at least equal to or more than a lower surface of the heat storage member. 5. An adiabatic container connected to an upper portion of an exhaust port of a combustion cylinder, a heat storage member provided in the adiabatic container with a gap capable of forming an exhaust gas passage vertically and horizontally, and one end of the adiabatic container. 2. The heat storage combustion heating device according to claim 1, wherein the heat storage combustion heating device comprises a discharge port provided in a lower portion of the heat storage unit and a heat insulating partition plate for preventing a short circuit between the discharge port and the discharge port. 6. A heat storage member divided into a plurality of parts is disposed in a heat insulating container connected to an upper portion of an exhaust port of a combustion cylinder such that a side surface portion thereof serves as an exhaust gas passage, and the heat insulating container is provided at a lower portion of one end of the heat insulating container. The heat storage combustion heating device according to claim 1, comprising a discharge port provided and a heat insulating partition plate that prevents a short circuit between the discharge port and the discharge port. 7. A meandering guide is provided between a plurality of divided heat storage members in an adiabatic container connected to an upper portion of an exhaust port of a combustion tube and an exhaust gas passage formed between a heat storage member and a side wall of the adiabatic container. The heat storage combustion heating device according to claim 1. 8. A combustion cylinder whose upper and side surfaces are formed of a heat storage member, an exhaust port provided on an upper side surface of the combustion cylinder, and a heat insulating material which covers the combustion cylinder while ensuring an exhaust passage from the exhaust port. The heat storage combustion heating device according to claim 1. 9. The heat storage combustion heating device according to claim 1, wherein an exhaust gas purifying catalyst is provided on a surface of the heat storage member which comes into contact with the exhaust gas.