JP2020012624A - Combustion heater and vent pipe for heat exchange - Google Patents

Abstract

To provide a combustion heater capable of preventing large variation from occurring in indoor temperature distribution due to low-temperature outside air, to efficiently heat the entire room as evenly as possible, and provide a vent pipe for heat exchange.SOLUTION: A combustion heater comprises combustion unit 21 installed in an indoor space 15 partitioned by a partition unit 13, and an exhaust pipe 30 that is arranged so as to penetrate the partitioning unit 13 and in which the exhaust gas of the combustion unit 21 forms an upward flow and is discharged to an outdoor space 14. The combustion unit 21 has a structure in which air in the indoor space 15 is sucked by suction force generated by the upward flow to burn fuel, and comprises a vent pipe 40 for heat exchange surrounding the outer periphery of the exhaust pipe 30 and arranged so as to penetrate the partition unit 13. Between the vent pipe 40 for heat exchange and the exhaust pipe 30, a vent passage 47 which opens to the indoor space 15 and the outdoor space 14 and can exchange heat with the exhaust pipe 30, is formed.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a combustion heating device provided with an exhaust pipe extending from a combustion section in the room to the outside through a partition section, and a ventilation pipe for heat exchange constituting the combustion heating apparatus.

  In a conventional combustion heating device, various fuels are burned in a combustion section disposed indoors, and an exhaust pipe extending upward from the combustion section forms an upward flow to discharge exhaust gas to the outside.

In such a combustion heating apparatus, since the suction force of the combustion section is generated by forming an upward flow by the exhaust gas in the exhaust pipe, the indoor air can be sucked into the combustion chamber to burn the fuel. For this reason, the exhaust pipe is arranged to extend upward from the combustion section disposed indoors, and as described in Patent Document 1 below, for example, the exhaust pipe is passed through a partition section of a building such as a roof or a wall, and It is installed with an opening.
Patent Literature 2 below includes a ventilation duct including a chimney of a fireplace inside, a blower that circulates outside air into the ventilation duct, and a first opening that guides outside air circulating through the ventilation duct into the room. Ventilation devices have been proposed. In this ventilator, by operating the blower, outside air is introduced into the ventilation duct through a ventilation port provided in a wall of the room. While the outside air flows through the heat exchange section of the ventilation duct including the chimney inside, the outside air is heated by the exhaust heat of the fireplace, and then discharged into the room through the first opening. Since the outside air is heated by the exhaust heat of the fireplace and introduced into the room, the decrease in the heating efficiency can be greatly suppressed compared to the case where the outside air is simply introduced into the room as it is.

JP 2014-5644A JP-A-10-238837

  However, in the conventional combustion heating device described in Patent Literature 1, as the indoor air is sucked into the combustion section by the suction force generated by the upward flow, the outdoor outdoor air is taken into the indoor. Therefore, in a highly airtight building, incomplete combustion or the like is likely to occur unless the outside air is sufficiently taken in. On the other hand, when an opening is provided to take in outside air, the outside air enters the room as it is, and the temperature distribution in the room tends to vary.

  On the other hand, in a low airtight building such as a gel or a tent, outside air passes through the partition and is taken into the room, or is taken into the room through a gap between the partitions. In the interior of such a building, a heating effect by radiation can be obtained, but a heating effect by convection is hardly sufficiently obtained. . As a result, the fuel is excessively burned in the combustion heating device, which is one of the causes of air pollution.

  In the device described in Patent Literature 2, another power source is required to operate, and the installation location is limited or another power source must be prepared, and the device cannot be easily installed. was there.

  Therefore, an object of the present invention is to provide a combustion heating device that can prevent a large variation in the temperature distribution inside a room due to low-temperature outside air, can heat the entire room as uniformly as possible, and can be installed easily and easily. Another object of the present invention is to provide a heat exchange ventilation pipe that can easily constitute such a combustion heating device.

  A combustion heating device according to the present invention that solves the above-mentioned problems is provided with a combustion section installed indoors partitioned by a partition section, and disposed so as to penetrate the partition section. An exhaust pipe to be exhausted, wherein the combustion section inhales indoor air with a suction force generated by the ascending flow to burn fuel, and surrounds the outer circumference of the exhaust pipe and penetrates the partition section. A heat exchange ventilation pipe is provided, and a ventilation path is formed between the heat exchange ventilation pipe and the exhaust pipe to open indoors and outdoors and to be capable of heat exchange with the exhaust pipe.

  In the combustion heating device of the present invention, it is preferable that the outdoor opening of the heat exchange vent pipe is disposed outside the partition part and is disposed closer to the partition part than the outdoor opening of the exhaust pipe. In this case, a portion from the outer periphery of the exhaust pipe above the outdoor opening of the heat exchange vent pipe to the outer periphery of the heat exchange vent pipe may be covered by the downwardly opened cover so as to allow ventilation. The heat exchange ventilation pipe may be disposed so as to surround the outer circumference of the exhaust pipe covered with the heat insulating material.

  A heat exchange ventilation pipe according to the present invention that solves the above-mentioned other problems, surrounds the outer periphery and penetrates the partition with respect to an exhaust pipe extending upward from an indoor combustion section partitioned by the partition and extending through the partition. The exhaust pipe is opened between the inside and the outdoors to form a ventilation path that can exchange heat with the exhaust pipe.

The heat exchange vent pipe of the present invention preferably includes at least one arc-shaped piece disposed on the outer periphery of the exhaust pipe, and a connecting portion that connects the arc-shaped pieces in a cylindrical shape.
Further, the heat exchange vent pipe has a plurality of fixing screws arranged at a plurality of locations spaced in the circumferential direction and screwed in a radial direction, and can be fixed to the outer peripheral surface of the exhaust pipe by the plurality of fixing screws. Is preferred.
Further, the heat exchange vent pipe has a suspending fitting that can be locked to the exhaust pipe, and can be fixed to the outer peripheral surface of the exhaust pipe while being suspended from the exhaust pipe by the suspending fitting.

  According to the combustion heating device of the present invention, since the heat exchange ventilation pipe surrounds the outer circumference of the exhaust pipe and is disposed so as to penetrate the partition, the ventilation path opened indoors and outdoors is formed. In addition, the outside air can be taken into the room through the heat exchange vent pipe, and the outside air can be suppressed from permeating through the partition and entering through the gap of the partition. Furthermore, since this ventilation path is formed so as to be able to exchange heat with the exhaust pipe, it is possible to heat the outside air through the ventilation path and take it in indoors. Of the outside air can be suppressed from being released indoors.

  Therefore, even if sufficient outside air is taken in and the fuel is efficiently combusted in the combustion section, the low-temperature outside air is not taken into the room as it is, and it is possible to prevent the temperature distribution inside the room from being varied due to the low-temperature outside air. As a result, the heating efficiency is increased by the heating effect by radiation and the heating effect by convection, and it is possible to provide a combustion heating device that can heat the entire room as uniformly as possible and can be installed easily and simply.

  According to the heat exchange vent pipe of the present invention, the exhaust pipe extending upward from the combustion part and penetrating the partition part can be attached so as to surround the outer periphery and penetrate the partition part, and between the exhaust pipe and the exhaust pipe. It is possible to form an air passage that is open to the outside and outside and that can exchange heat with the exhaust pipe. Therefore, by mounting the heat exchange ventilation pipe on the outer periphery of the exhaust pipe, the above-described combustion heating device can be easily realized. Therefore, it is possible to provide a heat exchange ventilation pipe that can prevent a variation in the temperature distribution inside a room due to low-temperature outside air and can easily configure a combustion heating device that can heat the entire room as uniformly as possible.

It is a mimetic diagram showing a combustion heating device using a ventilation pipe for heat exchange concerning a 1st embodiment of the present invention. It is a front view which shows the ventilation pipe for heat exchange in the combustion heating apparatus of FIG. It is AA sectional drawing of FIG. It is a side view showing the state where the ventilation pipe for heat exchange concerning a 1st embodiment of the present invention was opened by dividing into two. It is a partial front view showing the upper end side of the ventilation pipe for heat exchange and the exhaust pipe of the combustion heating device according to the second embodiment of the present invention. It is a top view showing the upper end side of the ventilation pipe and the exhaust pipe for heat exchange of the combustion heating device concerning a 2nd embodiment, and has shown the state where the cover was removed.

[First Embodiment]
Hereinafter, a combustion heating apparatus and a heat exchange ventilation pipe of the present invention will be described in detail with reference to the drawings. In the first embodiment, a description will be given using an example in which a combustion heating device is installed in a mobile residence called a gel or a yurt.
As shown in FIG. 1, a movable dwelling (hereinafter, referred to as a gel) 10 is formed by forming a skeleton in a three-dimensional shape and covering the outside thereof with a covering material such as cotton cloth or wool felt, and has a substantially columnar shape. The indoor part 15 is partitioned from the outdoor part 14 by the partition part 13 which has the side wall part 11 and the roof part 12 of the upper part.

  The combustion heating device 20 according to the first embodiment includes a combustion unit 21 installed in a room 15 partitioned by the partition unit 13, and extends upward from the combustion unit 21 and penetrates the partition unit 13 with the roof unit 12. And a heat exchange ventilation pipe 40 arranged around the outer circumference of the exhaust pipe 30 and penetrating the partition 13 together with the exhaust pipe 30.

  The combustion part 21 has a hollow body 24 surrounded by an outer wall, a supply port 25 opened on the side of the hollow body 24, and an exhaust port 26 opened above. Note that a heating cooking unit 27 is provided on the upper surface of the hollow body 24. In the first embodiment, the exhaust port 26 is provided with a damper 28 for adjusting the opening area.

  Fuel such as coal or firewood is supplied to the inside of the hollow body 24 from a supply port 25 to the combustion unit 21, burns while sucking air in the indoor 15 from the supply port 25, and exhaust gas is discharged from an exhaust port 26. It is configured to: By adjusting the opening area of the exhaust port 26 by the damper 28, it is possible to adjust the exhaust amount and adjust the combustion.

  The exhaust pipe 30 has a lower end connected to the exhaust port 26 of the combustion section 21, extends upward from the combustion section 21, projects from the roof 12 to the outside 14, and has an outdoor opening 31 at the upper end. In the exhaust pipe 30, the exhaust gas generated by the combustion of the combustion part 21 rises by forming an upward flow called a draft, and is discharged from the outdoor opening 31 to the outside 14.

  An upward flow is formed in the exhaust port 26 and the exhaust pipe 30 of the combustion section 21, and the air in the indoor 15 is sucked from the supply port 25 in the combustion section 21 by the suction force generated by the upward flow. A strong upward flow is formed, so that the combustion section 21 can efficiently burn fuel.

As shown in FIGS. 1 to 3, the heat exchange ventilation pipe 40 is formed in a tubular shape with both ends opened, and is arranged so as to surround the outer circumference of the exhaust pipe 30.
As shown in FIG. 4, the heat exchange ventilation pipe 40 of the first embodiment is fixed to a plurality of arc-shaped pieces 42 arranged in a circumferential direction on the outer circumference of the exhaust pipe 30 and to the inner surface of each arc-shaped piece 42. A plurality of reinforcing strips 43, a connecting portion 44 connecting the plurality of arc-shaped pieces 42 in a cylindrical shape, a plurality of fixing screws 46 for fixing the heat exchange ventilation pipe 40 to the outer surface of the exhaust pipe 30. , Is provided.

  In the first embodiment, the arc-shaped piece 42 is formed of an arc-shaped plate material obtained by dividing the heat exchange ventilation pipe 40 into two. Since each arc-shaped piece 42 is thin, thick reinforcing strips 43 are fixed to the inner surface of the arc-shaped piece 42 at a plurality of positions separated from each other in the longitudinal direction of the heat exchange ventilation tube 40.

  The connecting portion 44 is configured so that the edges of the arc-shaped pieces 42 can be connected to the positions of the reinforcing band members 43 at both circumferential edges of each of the arc-shaped pieces 42 so as to be adjacent to each other without any gap. In the first embodiment, the connecting portion 44 is adjacent to each other when the plurality of arc-shaped pieces 42 are pivotally closed by connecting the plurality of arc-shaped pieces 42 so that the plurality of arc-shaped pieces 42 can be opened and closed. It has a locking lever 44b and a locked hook 44c that can connect and fix the edges of the arc-shaped pieces 42.

  The connecting portion 44 can freely open and close the plurality of arc-shaped pieces 42 by the hinge portion 44a with the locking lever 44b disengaged from the locked hook 44c, and the exhaust pipe 30 is provided inside the heat exchange ventilation pipe 40. Can be easily arranged. On the other hand, by locking and locking the locking lever 44b to the locked hook 44c, the heat exchange ventilation pipe 40 can be closed and the cylindrical shape can be maintained.

  The plurality of fixing screws 46 are arranged at a plurality of locations at intervals of the circumferential direction at the position of the reinforcing strip 43. Each fixing screw 46 is screwed in the radial direction to the reinforcing strip 43. According to the plurality of fixing screws 46, the outer peripheral surface of the exhaust pipe 30 is fixed by tightening the fixing screws 46 in a state where the heat exchange ventilation pipe 40 is arranged around the outer circumference of the exhaust pipe 30. The screw 46 can be firmly pressed inward, so that the exhaust pipe 30 can be sandwiched by the plurality of fixing screws 46 and the heat exchange ventilation pipe 40 can be fixed to the exhaust pipe 30.

  In a state in which the heat exchange vent pipe 40 is arranged so as to surround the outer periphery of the exhaust pipe 30, the heat exchange vent pipe 40 and the exhaust pipe 30 are arranged inwardly and outwardly as shown in FIGS. The air passage 47 is formed therebetween.

In the first embodiment, the heat exchange ventilation pipe 40 is disposed substantially concentrically with the exhaust pipe 30, and the ventilation path 47 is provided so as to surround the entire outer circumference of the exhaust pipe 30 at equal intervals. Further, in the first embodiment, since the outer circumference of the exhaust pipe 30 is covered with the heat insulating material 33 such as rock wool, the heat exchange ventilation pipe 40 surrounds the outer circumference of the exhaust pipe 30 covered with the heat insulating material 33. Are located.
When the ventilation path 47 is provided in the vicinity of or adjacent to the exhaust pipe 30 as described above, heat exchange can be performed between the gas passing through the ventilation path 47 and the exhaust passing through the exhaust pipe 30. In the first embodiment, it is possible to exchange heat appropriately via the heat insulating material 33.

  The heat exchange vent pipe 40 is attached to the roof part 12 of the gel 10 through the partition part 13 together with the exhaust pipe 30. Both ends of the heat exchange vent pipe 40 are open to the outside 14 and the indoor 15. The entire length between the outdoor opening 41 and the indoor opening 48 is a ventilation path 47.

  More specifically, the outdoor opening 41 of the heat exchange vent pipe 40 is disposed outside the partition 13 and is disposed closer to the partition 13 than the outdoor opening 31 of the exhaust pipe 30. That is, the outdoor opening 41 of the ventilation pipe 40 for heat exchange is arranged at a position where the exhaust gas discharged from the outdoor opening 31 of the exhaust pipe 30 is not taken in, and at a position where the outside air from the outdoor 14 can be taken.

  The indoor opening 48 of the heat exchange ventilation pipe 40 may be provided in the indoor 15, but preferably the distance from the outdoor opening 41, that is, the outside air taken in from the outdoor opening 41 and flowing through the ventilation path 47 is exhaust pipe. An indoor opening 48 is provided at a position where heat can be exchanged with 30 and heated to a desired temperature and released to the indoor 15. Although it is not particularly limited, even if the temperature of the gas released from the indoor opening 48 is excessively cold or excessively hot, the temperature distribution in the indoor 15 tends to fluctuate. The position of the indoor opening 48 is set so as to be preferably 60 ° C. or lower, more preferably 40 ° C. or lower.

  The combustion heating device 20 having such a configuration includes a conventional combustion system in which a combustion unit 21 is installed in a room 15 partitioned by a partition unit 13 and an exhaust pipe 30 is arranged to penetrate the partition unit 13 on the roof unit 12. It can be easily constructed by adding the heat exchange ventilation pipe 40 to the heating device 20 as a retrofit. In order to add the heat exchange ventilation pipe 40, the arc-shaped piece 42 of the heat exchange ventilation pipe 40 is opened to surround the outer circumference of the exhaust pipe 30, penetrate the partition part 13, and the connection part 44 performs heat exchange. The ventilation pipe 40 is closed and fixed to the exhaust pipe 30 with a plurality of fixing screws 46.

  At this time, after temporarily fixing the heat exchange ventilation pipe 13 to the outer periphery of the exhaust pipe 30 near the roof 12, the fixing screw 46 is loosened to raise the heat exchange ventilation pipe 13 along the exhaust pipe 30, 12, the outdoor opening 41 can be disposed above the roof 12, and then can be firmly fixed by the fixing screw 46. By attaching the heat exchange ventilation pipe 40 in this manner, the heat exchange ventilation pipe 40 can be attached by work only on the indoor 15 side. By closing the arc-shaped piece 42 and tightening the fixing screw 46 with, for example, a single screwdriver, the heat exchange ventilation pipe 40 can be attached to the outer periphery of the exhaust pipe 30. Therefore, the combustion heating apparatus of the first embodiment can be easily operated. 20 can be constructed.

  When the combustion heating device 20 heats the indoor 15, the combustion unit 21 burns the fuel while sucking the air inside the indoor 15, and the exhaust gas generates a strong upward flow and is discharged from the exhaust pipe 30 to the outdoor 14. . Along with this, the indoor 15 has a negative pressure as compared with the outdoor 14, so that the outside air of the outdoor 14 passes through the heat exchange ventilation pipe 40 having a smaller resistance than the partition 13, and exchanges heat with the exhaust pipe 30. It is taken in. By continuing these, the indoor 15 can be heated while ventilating.

  Since the strength of the upward flow generated at the time of combustion increases and decreases in proportion to the amount of combustion, when the amount of combustion is large, the amount of air taken in by the combustion part 21 from the indoor 15 increases, and the outside air taken in from the heat exchange vent pipe 40 is increased. The amount increases. As described above, the ventilation amount of the indoor 15 is automatically and appropriately adjusted according to the combustion amount, and the appropriate amount of outside air is appropriately heat-exchanged and introduced into the indoor 15.

  According to the combustion heating device 20 of the first embodiment, the ventilation pipe 40 for heat exchange surrounds the outer circumference of the exhaust pipe 30 and is disposed so as to penetrate the partition 13, so that it is opened to the indoor 15 and the outdoor 14. Since the ventilation path 47 is formed, the outside air can be taken into the room through the heat exchange ventilation pipe 40, and the outside air can be prevented from passing through the partition 13 or entering through the gap of the partition 13.

  Since the ventilation path 47 is formed so as to be capable of exchanging heat with the exhaust pipe 30, the outside air can be heated by the ventilation path 47 and taken into the room 15, and sufficient outside air can be taken in by the heat exchange ventilation pipe 40. Even if it is, low-temperature outside air is not released into the room 15.

  Therefore, even if sufficient outside air is taken in and the fuel is efficiently combusted in the combustion section 21, the low-temperature outside air is not taken into the indoor 15 as it is, and the temperature distribution of the indoor 15 does not vary due to the low-temperature outside air. It is possible to heat the whole as uniformly as possible.

  In the combustion heating apparatus 20 of the first embodiment, such indoor heating can be performed without using other power such as electricity. Therefore, the installation can be easily performed without limiting the installation place or preparing another power source. For example, as in the case of using electricity, even if a failure occurs in another power source such as a power failure, it can be used without any problem. Further, since components such as a fan which are indispensable to be driven at the time of operation can be made unnecessary, there is no danger that such components will fail to perform ventilation and cause carbon monoxide poisoning.

  In the combustion heating device 20 according to the first embodiment, since the outdoor opening 41 of the heat exchange ventilation pipe 40 is disposed outside the partition 13, the outside air can be reliably taken into the indoor 15. In addition, since the outdoor opening 41 of the heat exchange ventilation pipe 40 is disposed closer to the partition 13 than the outdoor opening 31 of the exhaust pipe 30, both outdoor openings 31 and 41 can be separated from each other, and the leeward side of the exhaust pipe 30 can be separated. Even if the exhaust gas discharged from the exhaust pipe 30 descends to the partition 13 side along the outer peripheral wall of the exhaust pipe 30 due to the influence of the pressure on the side, the exhaust pipe 40 for heat exchange prevents the exhaust gas from being taken in together with the outside air. it can.

  For example, when the wind in the outside 14 is strong, the exhaust gas discharged from the outdoor opening 31 of the exhaust pipe 30 flows down due to the negative pressure on the leeward side around the exhaust pipe 30. When the opening 41 is provided in the vicinity of the outdoor opening 31 of the exhaust pipe 30, the exhaust gas is easily taken into the heat exchange ventilation pipe 40. However, in the first embodiment, since the outdoor opening 41 of the heat exchange ventilation pipe 40 is arranged so as to be sufficiently separated from the position of the outdoor opening 31 of the exhaust pipe 30, even if the exhaust gas flows down due to a strong wind, it reaches. No exhaust is taken into the room 15.

  In the combustion heating apparatus 20 according to the first embodiment, since the heat exchange ventilation pipe 40 is arranged around the outer circumference of the exhaust pipe 30 covered with the heat insulating material 33, the outside air ventilating inside the heat exchange ventilation pipe 40 is provided. Exhaust in the exhaust pipe 30 can be prevented from being excessively cooled by heat exchange with the air, a sufficient upward flow in the exhaust pipe 30 can be secured, and a sufficient amount of indoor air can be sucked into the combustion section 21. Easy.

  According to the replacement ventilation pipe 40 of the first embodiment, the exhaust pipe 30 extending upward from the combustion section 21 and penetrating through the partition section 13 can be attached around the outer periphery and through the partition section 13. Between the exhaust pipe 30 and the exhaust pipe 30, a ventilation path 47 can be formed that opens between the indoor 15 and the outdoor 14. Therefore, by attaching the heat exchange ventilation pipe 40 to the outer periphery of the exhaust pipe 30, the above-described combustion heating device 20 can be easily realized. Therefore, it is possible to prevent the temperature distribution of the indoor 15 from being varied due to the low-temperature outside air, and easily configure the combustion heating device 20 that can heat the entire indoor as uniformly as possible.

  According to the heat exchange ventilation pipe 40 of the first embodiment, at least one arc-shaped piece 42 arranged on the outer periphery of the exhaust pipe 30 and a connecting portion 44 for connecting the arc-shaped piece 42 in a cylindrical shape are provided. Therefore, if the arc-shaped piece 42 is arranged around the exhaust pipe 30 and is connected in a cylindrical shape by the connecting portion 44, it can be easily mounted on the outer circumference of the exhaust pipe 30. For example, it can be mounted with a single driver by extremely simple work. It is possible. In particular, if such a replacement ventilation pipe 40 is used, the arc-shaped piece 42 is arranged and closed around the exhaust pipe 30 of the existing combustion heating device in a state of being opened in two, and the fixing screw 46 is tightened to exhaust air. If the outer periphery of the pipe 30 is surrounded and fixed by the heat exchange ventilation pipe 40, the existing combustion heating apparatus can be very easily remodeled into the combustion heating apparatus 20 of the first embodiment.

  Further, in the exhaust pipe 30 of the first embodiment, the heat exchange vent pipes 40 have a plurality of fixing screws 46 which are arranged at a plurality of places spaced apart in the circumferential direction and are screwed in the radial direction. Since the heat exchange ventilation pipe 40 can be fixed to the outer peripheral surface of the exhaust pipe 30 by the fixing screw 46, the heat exchange ventilation pipe 40 is arranged on the outer circumference of the exhaust pipe 30 and the plurality of fixing screws 46 are tightened. Can be easily attached to the exhaust pipe 30. Moreover, since the heat exchange ventilation pipe 40 is directly fixed to the exhaust pipe 30, there is no need to provide a structure for supporting the heat exchange ventilation pipe 40 to another member, and the configuration can be simplified.

[Second embodiment]
5 and 6 show the upper end of an exhaust pipe and a heat exchange ventilation pipe according to the combustion heating apparatus of the second embodiment. The second embodiment is the same as the first embodiment except that the structures of the upper end portions of the exhaust pipe 30 and the heat exchange ventilation pipe 40 are different.
In the second embodiment, first, a hanging fitting 49 capable of locking the heat exchange ventilation pipe 40 to the outdoor opening 31 of the exhaust pipe 30 is provided in the heat exchange ventilation pipe 40. In the vicinity of the upper end portion of the exhaust pipe 40, a cover 50 disposed on the outer periphery of the exhaust pipe 30 and covering the upper end side of the ventilation pipe 40 is provided.

  The hanging metal fittings 49 are mounted at a plurality of positions spaced apart in the circumferential direction of the heat exchange ventilation pipe 40, and are provided at the lower end side of the fixing portion 49a with the heat exchange ventilation pipe 40 and at the upper end side. An opening hook 49b that can be locked around the outdoor opening 31 of the exhaust pipe 30 and a support portion 49c provided at an intermediate portion and supporting the cover 50 are provided. The hanging fitting 49 fixes the fixing portion 49 a to the upper end side of the heat exchange ventilation pipe 40, and locks the opening hook 49 b to the outdoor opening 31 of the exhaust pipe 30, thereby connecting the heat exchange ventilation pipe 40 to the exhaust pipe 30. Can be hung.

  A cover 50 that covers an upper end of the heat exchange ventilation pipe 40 is disposed so as to surround the exhaust pipe 30 in a ring shape and is in contact with the outer peripheral surface, and an inclined wall 51 that is formed so as to have a radially downward slope from the exhaust pipe 30 side. A cylindrical wall 52 which is provided continuously on the outer peripheral side of the inclined wall 51 and has a cylindrical shape larger in diameter than the heat exchange vent pipe 40, and an attachment for attaching to the exhaust pipe 30 and the heat exchange vent pipe 40; And an opening 53 facing downward. In the cover 50 according to the present embodiment, the mounting portion 53 is provided on the inclined wall 51, and the mounting portion 53 is supported by the support portion 49 c of the hanging fitting 49 disposed through the inclined wall 51.

  The cover 50 is mounted between the outdoor opening 31 of the exhaust pipe 30 and the outdoor opening 41 of the ventilation pipe 40 for heat exchange. In the mounted state, the inclined wall 51 covers the entire outer peripheral side of the exhaust pipe 30 in the outdoor opening 41 of the heat exchange ventilation pipe 40 at a position separated upward and above. In addition, a cylindrical wall 52 continuous from the inclined wall 51 covers the entire circumference of the outdoor opening 41 of the heat exchange ventilation pipe 40 at a position radially separated from the circumference. The cover 50 is opened downward so that outside air can be taken in from the partition 13 side of the cover 50.

  In order to add such a configuration to the existing combustion heating apparatus 20, a plurality of hanging fittings 49 are fixed to the heat exchange ventilation pipe 40 and hung from the outdoor opening 31 of the exhaust pipe 30. It is fixed to the exhaust pipe 30 by a fixing screw 46. Further, the annular inclined wall 51 of the cover 50 is inserted through the outer periphery of the exhaust pipe 30, the cover 50 is arranged above and around the outdoor opening 41 of the heat exchange ventilation pipe 40, and is attached to a predetermined position by the hanging metal fitting 49. . Others may be the same as in the first embodiment.

Even in the second embodiment, the same operation and effect as in the first embodiment can be obtained.
In the second embodiment, the heat exchange ventilation pipe 40 has a hanging metal fitting 49 that can be locked to the exhaust pipe 30, and can be fixed to the exhaust pipe 30 while being suspended from the exhaust pipe 30 by the hanging metal fitting 49. The heat exchange ventilation tube 40 can be easily fixed to a predetermined position of the tube 30.
In the second embodiment, a portion from the outer periphery of the exhaust pipe 30 above the outdoor opening 41 of the heat exchange ventilation pipe 40 to the outer periphery of the heat exchange ventilation pipe 30 is covered by the cover 50 opened downward so as to be able to ventilate. Therefore, in addition to preventing the exhaust air from being taken in with the outside air, it is possible to prevent moisture such as rain and snow from entering the ventilation path 47 of the heat exchange ventilation pipe 40 due to the outdoor weather and flowing into the room. .

The first and second embodiments can be appropriately changed within the scope of the present invention.
For example, in each of the above embodiments, the example in which the combustion heating device 20 is installed on the gel 10 has been described, but the building to be installed is not limited at all. For example, even if the partition 13 is a building made of various materials such as cloth, leather, wood, stone, and mortar, the combustion heating device 20 of the present invention can be similarly installed.

  Further, in each of the above embodiments, the exhaust pipe 30 and the heat exchange vent pipe 40 are passed through the center of the roof portion 12 of the gel 10, but the position through which the partition portion 13 passes can be appropriately selected. That is, since the exhaust pipe 30 can be arranged in the exhaust pipe 30 within a range in which an ascending flow required for combustion in the combustion unit 21 can be formed, the exhaust pipe 30 and the heat exchange ventilation pipe 40 are connected to the And may penetrate in the side wall 11 below the roof 12.

Further, in each of the above-described embodiments, the heat exchange ventilation pipe 40 is configured by connecting the plurality of arc-shaped pieces 42 by the connecting portion 44. However, the locking lever 44b and the engaged It is also possible to provide a connecting portion 44 comprising a stop hook 44c so that the connecting portion 44 can be opened and closed. In this case, the arc-shaped piece 42 may be elastically deformed to open and close between both edges of the arc-shaped piece 42.
Further, it is also possible to form the heat exchange ventilation pipe 40 into a cylindrical shape that does not open and close, and arrange it around the outer circumference of the exhaust pipe 30.

  Furthermore, in each of the above-described embodiments, an example in which the outer circumference of the exhaust pipe 30 is covered with the heat insulating material 33 has been described. However, the present invention is not particularly limited thereto. A replacement ventilation pipe 40 may be attached.

  In the second embodiment, an example is described in which the heat exchange ventilation pipe 40 suspended from the exhaust pipe 30 by the suspension fitting 49 is fixed with the same fixing screw 46 as in the first embodiment, but the fixing screw 46 is not used. Alternatively, the heat exchange ventilation pipe 40 may be suspended from the exhaust pipe 30 and fixed.

DESCRIPTION OF SYMBOLS 10 Gel 11 Side wall part 12 Roof part 13 Partition part 14 Outdoor 15 Indoor 20 Combustion heating apparatus 21 Burning part 24 Hollow body 25 Supply port 26 Exhaust port 27 Cooking unit 28 Damper 30 Exhaust pipe 31 Outdoor opening 33 Insulation material 40 Heat exchange Ventilation pipe 41 Outdoor opening 42 Arc-shaped piece 43 Reinforcement band 44 Connecting part 44a Hinge part 44b Locking lever 44c Locked hook 46 Fixing screw 47 Ventilation path 48 Indoor opening 49 Hanging fitting 49a Fixing part 49b Opening hook 49c Supporting part 50 Cover 51 Slope wall 52 Cylindrical wall 53 Mounting part

The combustion heating device of the present invention that solves the above-mentioned problems is a combustion heating device that is used in a mobile dwelling and does not use a power supply, and includes a combustion unit installed indoors partitioned by a partition, and a partition. disposed through to, provided with an exhaust pipe to be discharged to the outdoors, and a heat exchange ventilation tube surrounds and a partition portion of the outer periphery is disposed through the exhaust pipe exhaust of the combustion section to form a rising flow In addition, between the heat exchange ventilation pipe and the exhaust pipe, a ventilation path that opens to the inside and the outside and is capable of exchanging heat with the exhaust pipe is formed, and a natural suction force generated by the upward flow of the combustion section to the outside. Only by taking in the indoor air into the room from the ventilation path, the indoor air is sucked and the fuel is burned .

The heat exchange vent pipe of the present invention that solves the above other problems is a heat exchange vent pipe for a combustion heating device that is used in a mobile dwelling and does not use a power source, and is an indoor pipe partitioned by a partition. to exhaust pipe extending from the combustion unit upwards through the partition portion, it is mounted through the and partition portion surrounding the outer periphery, between the exhaust pipe and an exhaust pipe opens into the indoor and outdoors A heat exchangeable ventilation path is formed, and outdoor air can be taken into the room from the ventilation path only by natural suction force generated by the upward flow of exhaust gas from the combustion section to the outside .

The heat exchange vent pipe of the present invention preferably includes at least one arc-shaped piece disposed on the outer periphery of the exhaust pipe, and a connecting portion that connects the arc-shaped pieces in a cylindrical shape.
Further, the heat exchange ventilation pipe has a plurality of fixing screws arranged at a plurality of locations spaced in the outer peripheral direction and screwed in the radial direction, and can be fixed to the outer peripheral surface of the exhaust pipe by the plurality of fixing screws. Is preferred.
Further, the heat exchange vent pipe has a suspending fitting that can be locked to the exhaust pipe, and can be fixed to the outer peripheral surface of the exhaust pipe while being suspended from the exhaust pipe by the suspending fitting.

A combustion heating device according to the present invention that solves the above-mentioned problems is used in a mobile dwelling, and in a combustion heating device that does not use a power source, a combustion unit installed indoors partitioned by a partition, and penetrating the partition. And an exhaust pipe in which the exhaust gas of the combustion section forms an upward flow and is discharged outside, and a heat exchange ventilation pipe surrounding the outer circumference of the exhaust pipe and disposed through the partition section. Wherein, between the heat exchange ventilation pipe and the exhaust pipe, a ventilation path that is open to the indoor and the outdoor and that can exchange heat with the exhaust pipe is formed, and the heat exchange ventilation pipe is Penetrating the partition with the exhaust pipe, the outdoor opening of the exhaust pipe and the outdoor opening of the heat exchange ventilation pipe, than the distance from the partition to the outdoor opening of the heat exchange ventilation pipe, From the outdoor opening of the heat exchange vent pipe to the exhaust pipe Serial as the distance to the outdoor opening is large, is obtained by vertically arranged spaced apart from each other by.

The heat exchange ventilation pipe of the present invention that solves the above-mentioned other problems is used in a mobile dwelling, and in a heat exchange ventilation pipe for a combustion heating device that does not use a power source, indoor combustion partitioned by a partition portion. The exhaust pipe extending upward from the part and penetrating the partition part is attached so as to surround the outer periphery and penetrate the partition part, and open the indoor and outdoor parts between the exhaust pipe and the exhaust pipe. Forming a ventilation path capable of exchanging heat with the pipe, wherein the heat exchange ventilation pipe penetrates the partition together with the exhaust pipe, and an outdoor opening of the exhaust pipe and an outdoor opening of the heat exchange ventilation pipe, In a vertical direction, the distance from the outdoor opening of the heat exchange ventilation pipe to the outdoor opening of the exhaust pipe is greater than the distance from the partition to the outdoor opening of the heat exchange ventilation pipe. They are arranged apart from each other .

More specifically, the outdoor opening 41 of the heat exchange vent pipe 40 is disposed outside the partition 13 and is disposed closer to the partition 13 than the outdoor opening 31 of the exhaust pipe 30. That is, the outdoor opening 41 of the ventilation pipe 40 for heat exchange is arranged at a position where the exhaust gas discharged from the outdoor opening 31 of the exhaust pipe 30 is not taken in, and at a position where the outside air from the outdoor 14 can be taken. Specifically, the positional relationship between the outdoor opening 31 of the exhaust pipe 30 and the outdoor opening 41 of the heat exchange ventilation pipe 40 is greater than the distance d1 from the partitions 12, 13 to the outdoor opening 41 of the heat exchange ventilation pipe 40. Also, they are arranged vertically apart from each other such that the distance from the outdoor opening 41 of the heat exchange ventilation pipe 40 to the outdoor opening 31 of the exhaust pipe 30 is large (distance d1 <distance d2).

Claims (7)

A combustion section installed indoors partitioned by the partition section, and an exhaust pipe arranged to penetrate the partition section, the exhaust pipe of the combustion section forming an upward flow and discharged to the outside, A combustion heating device in which a combustion unit inhales the indoor air with a suction force generated by the upward flow and burns fuel,
A heat exchange ventilation pipe surrounding the outer circumference of the exhaust pipe and disposed through the partition portion,
A combustion heating device, wherein a ventilation passage opening between the indoor and the outdoor and exchanging heat with the exhaust pipe is formed between the heat exchange ventilation pipe and the exhaust pipe.   The combustion heating apparatus according to claim 1, wherein an outdoor opening of the heat exchange ventilation pipe is arranged outside the partition, and is arranged closer to the partition than an outdoor opening of the exhaust pipe.   3. The outer periphery of the exhaust pipe above the outdoor opening of the heat exchange vent pipe to the outer periphery of the heat exchange vent pipe is covered by a downwardly opened cover so as to be able to ventilate. 4. Combustion heating system.   The exhaust pipe extending upward from the indoor combustion section partitioned by the partition section and penetrating through the partition section is mounted around the outer periphery and through the partition section, and between the exhaust pipe and the exhaust pipe. A heat exchange vent pipe that opens to the outside and the outside to form a vent path that can exchange heat with the exhaust pipe.   The heat exchange according to claim 4, wherein the heat exchange ventilation pipe includes at least one arc-shaped piece disposed on an outer periphery of the exhaust pipe, and a connecting part that connects the arc-shaped pieces in a cylindrical shape. For ventilation pipes.   The heat exchange ventilation pipe has a plurality of fixing screws arranged at a plurality of locations spaced in the circumferential direction and screwed in a radial direction, and is fixed to an outer peripheral surface of the exhaust pipe by the plurality of fixing screws. The heat exchange vent pipe according to claim 4 or 5, which is capable of being used.   5. The heat exchange ventilation pipe includes a hanging metal that can be locked to the exhaust pipe, and can be fixed to an outer peripheral surface of the exhaust pipe while being suspended from the exhaust pipe by the hanging metal. 6. 7. The heat exchange vent pipe according to any one of claims 1 to 6.

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