JPH0221161A - Heating apparatus - Google Patents

Abstract

PURPOSE:To reduce thermal shock on a rotary part and pressure loss in a heat exchanger, and also to make a heating apparatus compact by cooling a heat exchange drum by air from an air fan, and by supplying air to a room after high temperature air from a combustion part and air heat-exchanged with the rotary part are diluted. CONSTITUTION:As a rotary part 30 revolves continuously, a heated position of the rotary part 30 on the combustion part 10 side moves towards the air blowing part 40. A heated portion of the rotary part 30 that moves to the air blowing part 40 side is heat-exchanged with air that is forcibly sent to the air blowing part 40, so that air is heated and the rotary part is cooled down. Air heat-exchanged with the rotary part 30 reaches an outlet 41 and is diluted with air from an air fan 52 to cool down suitable for supplying to a room. Therefore, even if air discharged from the outlet 41 is rather high temperature, air blowing into the room can be kept at an adequate temperature so that air flow required for heat exchanging can be reduced and pressure loss is low. As the air from air fan 52 is firstly blown to the heat exchange part, the combustion part 10 can be cooled and abnormal heating can be prevented.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a heater, and more specifically, the combustion heat generated when gas, kerosene, etc. is combusted is converted into indoor air with extremely high efficiency using a rotating body. The present invention relates to a heater formed to allow heat exchange, and in particular to a heater that is smaller in size as a whole.

[Conventional technology] Conventionally, so-called FF hot air heaters have been provided.

Explain the outline of this hot air heater! l] Then, the fuel is combusted by the air sucked in from outside, and the air after combustion is discharged outdoors, and the air inside the room is The indoor air, which has undergone heat exchange and whose temperature has risen in this way, is forcibly sent indoors by a blower.

Such a conventional heater is mainly formed by housing a combustion section, an air blowing section, and a heat exchange section between the combustion section and the air blowing section inside a frame.

The combustion section consists of a combustion chamber, an intake hole for sending fresh air from outside into the combustion chamber by an intake fan, and an exhaust hole communicating with the outside for sending dirty air after combustion to the outside. A heat exchange portion is located between the combustion chamber and the exhaust hole.

The ventilation section has a ventilation fan installed between the indoor air intake hole provided on one side of the frame and the indoor air exhaust hole provided on the other side of the frame to perform forced heat exchange. It is designed to do the following.

Further, a portion between the combustion chamber and the exhaust hole, that is, a portion where heat is exchanged with indoor air by the blower portion functions as a heat exchange portion. Therefore, the air that has become high temperature due to combustion passes through this heat exchanger, and the temperature decreases by approximately equal to the increase in indoor air temperature, and is then exhausted to the outside from the exhaust hole. Become.

Although such conventional heaters have the advantage of being able to heat a room without polluting the indoor air at all, they also have the following problems.

■Low heat exchange efficiency.

In other words, in such conventional heaters, the heat heated up by the indoor air and combustion gas is exchanged via a heat exchanger, but the heat exchange efficiency is determined by the heat transfer area of the heat exchanger. If an attempt was made to raise the temperature by increasing the temperature, condensation would occur on the heat exchanger, which could lead to corrosion of the heat exchanger.

Therefore, in conventional heaters, it is necessary to set the heat exchange efficiency within a range in which this condensation does not occur, and the heat exchange rate is set low accordingly.

(2) Large heat exchange volume and high temperature air due to combustion gas in the heat exchange section.

Although heat exchange with low-temperature indoor air increases by increasing the heat transfer area of the heat exchanger, increasing the heat transfer area conversely increases the resistance of air circulation by the blower fan. It was supposed to happen. Therefore, the area of the passage is usually increased so as not to reduce the amount of air blown, and the volume of the heat exchanger itself is increased to improve the efficiency of heat exchange, so the heater as a whole becomes thicker. Φ ■ Conventional heaters like this dry out the air in the room, exhausting all the air after combustion to the outside, so the water vapor associated with combustion is also exhausted to the outside at the same time. This, combined with indoor heating, caused the room to become abnormally dry.

Therefore, the same applicant has already provided a rotating body that rotates across the combustion section and the blowing section, and provided this rotating body with an air flow path for heat exchange, thereby significantly increasing the efficiency of heat exchange. An application has been filed for an invention regarding a heater which is improved and prevents drying by sending water vapor generated due to combustion into the room.

[Question 8 that Part 11 attempts to solve] However, although such heaters have high thermal efficiency and can reduce the volume required for heat exchange, the temperature in the combustion section is
000 to 1,100°C, whereas the temperature blown into the room is about 60 to 100°C, which has caused the following problems.

(2) If an attempt is made to lower the temperature from 1000 to 1100°C to 60 to 100'0, the thermal shock will become large and the rotating body may be damaged.

(2) If an attempt is made to lower the temperature from 1,000 to 1,100°C to 6O-100°C, the amount of air blown at the blowing section will increase, resulting in a large pressure loss. Furthermore, in order to reduce the pressure loss, it is necessary to make the diameter of the rotating body very large, which increases the size of the entire heating machine.

Therefore, the present invention provides air from a blower fan to the heat exchange tube.
In addition to cooling the heat exchange cylinder, the air that has exchanged heat with the high-temperature air from the combustion section and the rotating body is diluted by air from the blower fan, lowering its temperature, and then blowing into the room. By doing so, the heat exchange temperature in the rotating body is lowered to eliminate thermal shock, and at the same time, by reducing the amount of air for heat exchange, pressure loss is eliminated and the overall size of the heater is reduced. It is.

[Means for solving problems] One aspect of the present invention is to solve the above-mentioned problems.

Heat for heating is obtained by exchanging heat in the heat exchange section between the combustion section and the blower section F! j! The heat exchange unit is formed by a rotating body that rotates between the combustion unit and the blowing unit, and has an air flow path in a direction that coincides with the rotation axis. A separate ventilation fan is installed.

It is characterized in that the air from the blower fan is blown onto the heat exchange section, and the high temperature air heated by the heat exchange section is diluted and cooled and sent into the room.

[Function] In the heater according to the present invention, a rotating body provided with an air flow path rotates astride the combustion section and the blowing section.

Therefore, among these rotating bodies, the body on the side of the combustion section becomes hotter as the heat generated by the combustion of the air and gas supplied to the combustion section passes through the flow path. .

On the other hand, when the rotating body heated in this way rotates in the direction of the blower, the air supplied to the blower passes through the flow path of the rotating body. This allows heat to be exchanged with the air from the blower.

On the other hand, in the present invention, a blower fan is attached, and the heat exchange section is cooled by air from the blower fan. Therefore, thermal shock occurring in the heat exchange section can be prevented.

Furthermore, in the present invention, the air from the blower fan can
It is designed to dilute and reduce the temperature of the high-temperature air heated by the heat exchange section and send it into the room. Therefore, the exhaust temperature from the air blowing section of the heat exchange section can be set to a high temperature, so that thermal changes in the heat exchange section can be reduced, and damage caused by thermal shock can be prevented. Furthermore, since the amount of air blown at the air blowing section can be reduced, there is no pressure loss, and the entire heater can be made smaller.

[Example] Hereinafter, an example of a heater suitable for using the present invention will be described according to an illustrated example.

FIG. 1 is a schematic diagram for explaining the basic concept of a heater using the present invention.

In this schematic diagram, the air flow path is from the gas burner 20 on the combustion section 10 side to the exhaust hole 1 via the rotating body 30.
1, and a heating path from a heat exchange fan 50 as a blower 40 to a discharge hole 41 via a rotating body 30. More combustion part! A blower fan 52 is provided to blow air to the entire O and blower R section 40, and
The high-temperature air discharged from the exhaust hole 41 is diluted by the air blowing from the blower fan 52, and is blown into the room.

Further, here, the rotating body 30 is located so as to rotate between the combustion section 10 and the blowing section 40, and the rotating body 30 has air flowing in a direction that coincides with the rotation axis. A flow path 31 is provided.

Here, the air supplied from the heat exchange fan 50 may be blown only to the blowing section 40, and the air may be supplied to the burner 20 of the combustion section 10 from a fan (not shown), or the same heat exchange fan 50 may be used to supply air to the burner 20 of the combustion section 10. You may make it supply the air from the air to the ventilation part 40 and the burner 20.

Furthermore, the burner 20 or exhaust hole 41 side, which is the side of the combustion section 1O, of the rotating body 30 is supported by a mechanical seal 63, and the side of the exhaust hole 11 or the heat exchange fan 50, which is on the side opposite to the combustion section 10, is supported by an elastic seal 64. has been done.

Further, the mechanical seal 63 is made of a material such as ceramic, and is designed to withstand the high temperature generated in the combustion section 10. The elastic seal 64 is formed by a labyrinth seal made of Teflon or the like or a diaphragm seal, and is pressed against the mechanical seal 63 (I) while supporting the rotating body 30.

Further, a temperature sensor 15 is attached to the rotating body 30 on the side opposite to the combustion section 10, in front of the exhaust hole 11.

When such a heat exchange section using the rotating body 30 is used, gas and air forcibly supplied from the heat exchange fan 50 are combusted in the gas burner 20 section, and the high temperature air generated by this combustion is heated before reaching the exhaust hole 41. It passes through a flow path 31 provided in the rotating body 30. In this way, when the high-temperature air passes through the flow path 31, the rotating body 30 is heated to a high temperature.

On the other hand, the air from the heat exchange fan 50 functioning as the air blower 40 passes through the flow path 3 of the rotating body 30 before reaching the exhaust hole 41.
1, so this distribution path 3! If the temperature is high, heat will be exchanged with the rotating body 30 during the passage.

At this time, the rotating body 30 is continuously rotating.

The heated portion of the rotating body 30 on the side of the combustion section IO moves toward the side of the blowing section 40 as it rotates.

The rotating body 30 that has been moved to the blowing section 40 side and heated in this manner exchanges heat with the air that is forcibly blown by the blowing section 40, heating the air, and heating the rotating body 30. It will be cooled down.

In this way, the combustion in the combustion section 10, the blowing section 40
By blowing air in the air and rotating the rotating body 30, heat exchange can be continuously performed using the two rotating bodies 30 as a heat exchange section.

Furthermore, the air heat-exchanged by the rotating body 30 in this way is
The air reaches the exhaust hole 41, is diluted and cooled by air from the blower fan 52, and is blown into the room. Therefore, even if the temperature of the air from the exhaust hole 41 is set to a relatively high temperature, the temperature of the air blown into the room can be kept at an appropriate temperature, so the amount of air required for heat exchange can be reduced, and the pressure loss is also small.

Furthermore, since the air from the blower fan 52 is first blown onto the heat exchange section, the heat exchange section, especially the combustion section IO, can be cooled and abnormal heating can be prevented.

In addition, the water vapor generated by combustion in the combustion section 10 is 1
Although it may be discharged to the exhaust hole 11 via the flow path 31 of the rotating body 30, some of it may adhere to the flow path 31 due to the temperature drop due to heat exchange in the rotating body 30. The water vapor that adheres to the flow path 31 due to combustion in the combustion section 10 as described above.

When the rotary body 30 moves to the blowing section 40 as the rotating body 30 rotates, it is included in the wind from the heat exchange fan 50 and discharged from the discharge hole 41 .

Therefore, the heater according to the present invention can simultaneously perform humidification using the water vapor generated by combustion while heating the room.

According to the experimental results, when the temperature of the combustion part io by the gas burner 20 is 1000-1100°C, the temperature of the exhaust air from the exhaust hole 11 is about 50°C, and the temperature of the exhaust air from the exhaust hole 41 is about 50°C.
It can be confirmed that heat exchange is taking place such that the exhaust temperature from the air is approximately 300 to 400°C, and the temperature of the air blown into the room after being diluted by the blower fan 52 is approximately 60 to 100°C. Ta. In addition, in this experiment, the amount of air blown to the gas burner 20 was increased by 4.
The amount of air blown was ~5 times greater. Furthermore, regarding the ratio of the amount of air blown, if the ratio of the amount of air blown to the air blower 40 to the amount of air blown to the gas burner 20 is reduced, the heat exchange efficiency will decrease and it will not be efficient, and if the ratio is increased, the heat exchange efficiency will hardly change. On the contrary, it was confirmed that the pressure loss due to fluid resistance increased and it was similarly inefficient.

That is, although there is a considerable temperature difference between the combustion part 10 side and the anti-combustion part 10 side of the rotating body 30, in the present invention, the high temperature side of the rotary body 30 is supported by the mechanical seal 63, and the low temperature side is supported by the elastic seal 64. Therefore, the rotation of the rotating body 30 is not affected by temperature, and the sealing performance is also excellent.

Furthermore, considering the combustion section 10 side of the rotating body 30, to
This is because the temperature is repeated between oo~ttoo°C and 300~400°C.

Thermal shock is also relatively small.

Furthermore, if the one-rotator 30 does not rotate during such heat exchange, or if there is no air blowing from the blower section 40, heat exchange will not be carried out. In such a case, the air generated by the burner 20 of the combustion section 1O, which remains at a temperature of about 1000°C, flows into the exhaust hole 1.
1, which could cause a fire.

However, in this embodiment, a temperature sensor 15 is attached in front of the exhaust hole 11 on the anti-combustion part 10 side of the rotating body 30, and this temperature sensor 15 detects the temperature after heat exchange. The temperature detected by the temperature sensor 15 is 1
When the temperature exceeds 00°C, it is detected that the heat exchange has not been performed normally, and the operation of the entire heater is stopped based on this detection, thereby preventing accidents such as Ooku.

Furthermore, if this temperature sensor 15 is attached to the outside of the discharge hole 41, it is possible to detect not only malfunction of the rotation body 30 but also malfunction of the ventilation fan 52.

Next, embodiments of the present invention will be described in more detail with reference to FIGS. 2 and 3.

In this embodiment, a combustion section 10 and a blowing section 40 are installed inside a frame 60, and the combustion section 10 and the blowing section 40 are arranged inside a frame 60. A rotating body 30 including an air flow path 31 that rotates across B40 functions as a heat exchange section.

The combustion part 1O forcibly takes indoor air through the intake hole 12 by the intake fan 51, and uses this air to combust the gas ejected from the gas burner 20 inside the combustion part 1O, thereby obtaining combustion heat. Further, the dirty air after combustion is exhausted to the outside from an exhaust hole 11 which is connected to the combustion section 10 via a rotating body 30.

Further, a temperature sensor 15 is attached to this exhaust hole 11 portion.

The blowing unit 40 discharges indoor air sucked in from the suction hole 42 by the suction fan 51 functioning as a heat exchange fan 50 from the discharge hole 41 into the heater through the rotating body 30. Therefore, the suction hole 4 is
Inhaled from 2.

The air forcibly discharged from the discharge hole 41 always passes through the flow path 31 of the rotating body 30 and becomes high-temperature air.

Also, high temperature air from such exhaust hole 41.

A large amount of air supplied from the blower fan 52 is sent into the room while reducing the temperature.

The heat exchange section is located astride the combustion section IO and the air blower fl140, and is formed by a rotatable body 30 that is rotatable.

Further, the rotating body 30 has a thin cylindrical overall shape, and is rotated by a rotating motor 32 while being supported by a guide 61 provided inside the frame 60.

Next, the actual operation and operation of the heater according to this embodiment will be explained.

First, the intake fan 51 of the combustion section 10. The blower fan 52 of the blower section 40 and the rotary motor 32 of the rotating body 30 are rotated, and the gas burner 20 of the combustion section 10 is ignited.

Then, in this combustion section 1O, combustion is performed using the indoor air drawn in by the intake fan 51 and the gas from the gas burner 20, and when the high-temperature combustion heat generated by this combustion passes through the flow path 31 of the rotating body 30, The rotating body 30 inside the combustion section 10 is heated, and the low-temperature exhaust gas whose temperature has been lowered by the temperature required for this heating is exhausted from the exhaust hole 11.

Further, the water vapor in the combustion gas adheres to the flow passage 31 of the rotary body 30 due to a temperature drop accompanying the heating of the rotary body 30. Furthermore, if a moisture absorbent is provided in the flow path 31 of the rotating body 30, water vapor will be efficiently absorbed and retained by the moisture absorbent.

On the other hand, the rotating body 30 on the combustion section 10 side which has become high temperature in this way
As the rotary motor 32 rotates toward the blower section 40, the rotating body 30, which has become hot, will blow the air. B40
will be reached.

Then, indoor air is forcibly sent to the rotary body 30 that has reached this ventilation section 40 by the intake fan 51 that functions as a heat exchange fan 50, and when the air passes through the flow path 31 of the rotary body 30, the Heat exchange is performed with the indoor air, and the temperature of the rotating body 30 is lowered while increasing the temperature of the indoor air.

In addition, the water vapor attached to the flow path 31 of the one-rotation body 30 or absorbed and retained by the moisture absorbent provided in the flow path 31 is
Evaporates during heat exchange with indoor air.

It is supposed to be sent indoors as humid, high-temperature air.

Furthermore, while the forced heat exchange with the indoor air is being carried out in this way, the rotating body 30 is continuously rotated by the rotary motor 32, so it is located in the combustion section 10 again and becomes high temperature. , heat exchange with indoor air is repeated in the ventilation section 40.

Further, in the present invention, a blower fan 52 is provided, and the air blown from the blower fan 52 hits the combustion section 10 and the blower section 40, thereby reducing the temperature of both 10.40. Another combustion part! The large amount of air that has hit the air blower 40 and the air blower 40 undergoes heat exchange by the air blower 40, and is blown into the room while lowering the temperature of the high temperature air sent out from the exhaust hole 41.

Further, as explained in the embodiment, the flow passage 31 of the rotating body 30
If a moisture absorbent is attached to the heater, no condensation will occur, so corrosion of the heater will not occur and it will be able to withstand long-term use.

Further, the high-temperature air from the burner passage 70 undergoes heat exchange with the rotating body 30, and then is exhausted from the exhaust hole 11 while the temperature is detected by the temperature sensor 15.

More specifically, a heat exchange cylinder 75 is formed, the rotating body 30 is positioned in the center of the heat exchange cylinder 75, and the heat exchange cylinders 75 corresponding to both sides of the position of the rotary body 30 are aligned with the axis of the cylinder. Each part is formed on the surface containing the heart.

A gas burner 20 and an exhaust hole 11 are connected to one side of the partial heat exchange cylinder 75 to combust the air from the intake fan 51 and the supplied gas.
A heat exchange passage 71 is formed on the other side by communicating indoor air and high temperature air supply holes from the intake fan 51.
was formed.

Further, the high temperature air supplied from this supply hole is exhausted into the room from the exhaust hole 11 while being reduced in temperature by the wind from the blower fan 52.

Even in such an embodiment, only one rotating body 30 is used.

By rotating between the combustion section 10 and the blowing section 40, the heat generated in the combustion section 10 is exchanged with the blowing section 40, and the air that has become high temperature after the heat exchange is transferred from the blowing fan 52. It heats the room by sending a large amount of air into the room while reducing its temperature.

Furthermore, the embodiment shown in FIG. 4 shows a case where the heater according to the present invention is installed outdoors and a cooler 80 is attached to the indoor outlet of the warm air.

Further, in this embodiment, a heat exchange fan 50 and a blower fan 5
2 and the intake fan 51 are all formed by a single fan.

Specifically, the wind from a single fan is passed through a burner passage 70 to the gas burner 20, a heat exchange passage 71 for heat exchange, and the heat exchanged high-temperature air is diluted and cooled and blown into the room. The dilution passage 72 is branched to perform heat exchange.

The dilution passage 72 here is necessary because the heater itself is installed outdoors and is formed to blow only warm air into the room, so it reduces the temperature of the air being blown to prevent excessive heating of the walls. It is something that will be done.

Further, in this embodiment, the blower fan 52 is replaced by the heat exchange fan 5.
Although shown as a single fan that also serves as an intake fan 51, the blower fan 52 in the present invention dilutes and lowers the temperature of high-temperature air after heat exchange, and also directs air to the part where heat exchange is performed. The fan of this embodiment is sufficient as long as it can cool down the heat exchange section etc. by spraying it with water.

If it is formed integrally with the cooler 80 as in this embodiment, it becomes possible to use it as a heater when it is cold and to operate the cooler 80 when it gets hot for cooling.

Here, the rotating body 30 and its support member used in each of the embodiments as described above will be explained in more detail with reference to the perspective views shown in FIGS. 5 and 6.

The rotating body 30 has a thin cylindrical overall shape, and a guide 6 provided inside the frame 60! The motor 32 rotates at a low speed while being supported by the motor 32.

As the flow passage 31 provided in such a rotating body 30, a flow passage 31 having an appropriate shape such as a lattice shape as shown in FIG. 7 or a box shape as shown in FIG. 8 can be considered. . This flow path 31 is.

It is also possible to use extruded materials such as cordierite honeycomb or cylindrical materials such as monolithic supports for automobile catalysts. Further, a moisture absorbent is attached to the surface of the flow path 31 by coating or impregnation.

The rotating body 30 can also be formed by extruding aluminum, molding porous ceramics, or molding asbestos paper, metal plates, etc. into a cardboard shape and spirally winding it into a cylindrical shape. It can also be formed of a variety of materials and structures.

Note that in the rotating body 30 shown in FIG. 5, a partition plate 62 is provided on the frame body 60 between the combustion section IO and the blowing section 40 in order to prevent air flow between the two. Further, a gap between the rotating body 30 and the guide 81° or between the rotating body 30 and the partition plate 62 is made small by a labyrinth seal or the like.

In addition, the guide 61 has a mechanical seal 63 made of a ceramic material or the like on the high temperature side of the gas burner 20, and an elastic seal 64 such as a labyrinth seal or diaphragm seal made of Teflon or the like on the low temperature side opposite to the gas burner 20. Not only can the sealing performance be improved by the elastic seal 64 on the low temperature side, but also the thermal properties can be improved by the mechanical seal 63 on the high temperature side.

In other words, if both mechanical seals 63 are used, the sealing performance will deteriorate, and conversely, if both elastic seals 64 are used, thermal deformation will occur on the high temperature side, making both of them unsuitable for use. However, by using the above-mentioned combination, , not only does thermal deformation etc. not occur, but also it can be used in terms of performance.

Furthermore, in the heater using the present invention, if no measures are taken, there is a possibility that the combustion air in the combustion section 10 will flow slightly into the blower section 40, and the air after combustion will be discharged into the room. However, in the embodiment, the pressure in the blower section 40 is set higher than the pressure in the combustion section 10, so although the air sent to the blower section 40 may flow toward the combustion section 10, the pressure in the combustion section lO This prevents the air from flowing to the blowing section 40 side, so the air after combustion does not go out into the room.

Furthermore, an accident may occur in which the rotating body 30 does not rotate due to some reason.

In such a case, high temperature air will flow into the exhaust hole 11, causing the guide 61 or the entire heater to generate heat, possibly causing a breakdown or a fire.

Therefore, in the heater according to the present invention, a temperature sensor 1 is installed near the exhaust hole 11 on the anti-combustion part 10 side of the rotating body 30.
5 is attached, the temperature sensor 15 detects a state in which the rotating body 30 does not rotate or a state in which the blower unit 40 does not operate, that is, when the temperature at the exhaust hole 11 rises abnormally, and stops the gas supply. +L, or outputs a message indicating an abnormal state.

Furthermore, if the temperature of the high-temperature air discharged from the discharge hole 41 is cooled down by a large amount of air from the blower fan 52 is detected by a temperature sensor (not shown), it is possible to detect not only the malfunction of the rotation body 30 but also the temperature of the high temperature air discharged from the discharge hole 41. It is also possible to detect a temperature rise due to the rotation of the blower fan 52 being stopped.

Furthermore, FIGS. 7 and 8 show a gas burner 20 suitable for use in a heater according to the present invention.

This will be explained according to FIG.

FIG. 7 is a cross-sectional view of the gas burner 20, and FIG. 8 is a flame hole surface 22 of the honeycomb body 21 that blows out the mixed gas of the gas burner 20.
A plan view showing an example of the shape, and FIG. 9 is a sectional view of the flame hole surface 22 showing the combustion state.

This gas burner 20 includes a body 23 into which gas and air are mixed and fed, a communication plate 24 fixed to the top of the body 23, and a heat-resistant gasket 25 fixed to the top of the communication plate 24. It is formed from a honeycomb body 21 fixed by a tool 26.

The communication plate 24 has a large number of main openings 27 on its surface for guiding the premixed gas to form a main flame, and a small number of side openings 28 for forming side flames, and has an upper surface thereof. for,
A distribution ring 29 is provided upright to form a rectifying space in order to supply the premixed gas to the honeycomb body 21 separately for side flames and main flames.

However, this distribution ring 29 can also be formed integrally with the communication plate 24, or can be formed separately from the communication plate 24, or even fixed to the honeycomb body 21.

The honeycomb body 21 is made of ceramic, and when the cell shape is square, each cell shape has a side of about tmm and a wall thickness of 0, 3 to 0, 15.
It is desirable to set the cell size and aperture ratio to 60 to 80%, but when changing the cell shape, the cell size, aperture ratio, etc. can also be changed from the above values. Furthermore, the flame hole surface 22 of this honeycomb body 21 is formed by being divided into four parts. Therefore, the premixed gas is also ejected and combusted in a state where it is divided into four parts.

It is possible to form this honeycomb body 21 from ceramic.

■Ceramic has low thermal conductivity, so it prevents flashbacks.

■Ceramic is heat resistant.

■Flashback is generally prevented by reducing the flame hole diameter, but if the flame hole diameter is simply made smaller, the pressure loss will increase and the burner internal pressure will have to be increased. It was necessary to increase the area. However, in ceramic honeycomb, the aperture ratio is almost constant even when the cell diameter is reduced, so the increase in pressure loss at the burner flame hole due to flashback countermeasures is extremely low.

■Ceramic honeycomb is cheap because it can be reprinted.

etc.

When such a combustion device is actually combusted, the mixed gas supplied to the honeycomb body 21 by the first distribution ring 29 is distributed to the side flames around the flame hole surface 22 of the honeycomb body 21, as shown in FIG. and a main flame portion at the center of the flame hole surface 22, which are ejected and burned.

Furthermore, the flame hole surface 22 of this honeycomb body 21 is divided into four parts as shown in FIG. 8, and the mixed gas is ejected and burned in this divided state, so that the main flame is divided and the main flame is divided into four parts. Since the separated main flames exert a stabilizing effect on each other, it is possible to achieve higher-load combustion than in the case where the main flame is not divided into one part. However, the number of divisions is not limited to four divisions.

[Effect of the invention 1 As explained above, the present invention cools the heat exchange cylinders by applying air from the blower fan to the 8 exchange cylinders, and also exchanges heat with the high temperature air from the combustion section by the rotating body. The heated air is diluted with air from a blower fan, the temperature is lowered, and the air is blown into the room, thereby lowering the heat exchange temperature in a single rotating body and eliminating thermal shock. By reducing the air flow, pressure loss is eliminated and the entire heater is made smaller.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention. FIG. 1 is a schematic diagram, FIGS. 2 to 4 are specific application examples of the present invention, FIGS. 5 and 6 are perspective views showing a rotating body and its support means, and FIGS. 7 to 9 FIG. 2 is an explanatory diagram showing a gas burner. O... Combustion part 2... Intake hole O... Gas burner 2... Flame light surface 4... Communication plate 6... Fixture 8... Sleeve opening 0... Rotating body 2. ... Rotating motor ... Discharge hole 3 ... External suction hole l ... Intake fan 1 0 ... Frame 2 ... Partition plate 4 ... Elastic shield ... Heat exchange passage 5 ... Heat Replacement tube 1...Exhaust hole 5...Temperature sensor...Honeycomb body 3...Body 5...Packing 7...Main opening 9...Distribution ring...Flow path 0...Blower Part 2...Suction hole 0...Heat exchange fan 2...Blower fan...Guide 3...Mechanical seal O...Burner passage 2...Dilution passage 0...Cooler

Claims (1)

[Scope of Claims] 1. A heater that obtains heat for heating by exchanging heat in a heat exchange section between a combustion section and an air blowing section, the heat exchange section being a heat exchange section between a combustion section and an air blowing section. It is formed by a rotating body that rotates across the heat exchanger and has an air flow path in the direction that coincides with the rotation axis, and is provided with a blower fan that is separate from the heat exchanger, and the air from this blower fan is A heating device characterized by being formed so as to blow air onto a heat exchange section, dilute and reduce the temperature of high-temperature air heated by the heat exchange section, and send it into a room.