JP2002372309A - Stove with built-in hot-water heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stove with a built-in hot-water heat exchanger preventing the generation of boiling sound due to the heating of the hot-water heat exchanger to a high temperature even at the time of the single operation of the stove. SOLUTION: This stove is provided with a burner part 1 producing combustion gas by combustion, a main heat exchanger 13 circulating the combustion gas produced by the burner part 1, a bypass bypassing the main heat exchanger 13 from the burner part 1, and a hot-water heat exchange chamber 24 storing a hot-water heat exchanger 23 inside. A damper chamber 20 is provided among the main heat exchanger 13, the bypass, the combustion gas and the hot-water heat exchange chamber 24, and the damper chamber 20 is partitioned into four chambers. At the time of the single operation of the stove, a heat insulating space is formed in the damper chamber 20, so as to prevent the heating of the hot-water heat exchanger 23 securely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stove with a built-in hot water heat exchanger capable of performing a stove alone operation by radiation and convection and a combined operation with hot water heating such as simple floor heating.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent No. 2952952, for example, a branch port provided on the back side of a combustion cylinder and behind a middle of a red-hot body is disclosed. By providing the hot water heat exchanger in communication, high-temperature combustion gas can be supplied to the hot water heat exchanger during the combined operation of the floor heating and the radiant heating of the stove, and good floor heating can be performed. Was.

[0003]

In this conventional apparatus, however, the hot water heat exchanger is provided very close to the combustion cylinder and the red hot body, so that the hot water heat exchanger is heated to a high temperature even when the stove is operated alone. It will be heated, and the boiling sound of the inside warm water will be generated, or when transitioning to the combined heating and heating operation, the circulating water flows through the hot water heat exchanger, causing instantaneous boiling. Not only gives the user anxiety,
In severe cases, you must extinguish the fire and wait for it to cool down,
There was a problem that the combined operation could not be started.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention focuses on this point. In particular, the present invention relates to a burner for generating combustion gas by combustion, and a flow of combustion gas generated by the burner. And a main heat exchanger that emits heat for heating by radiation and convection from the surface, a bypass path that bypasses the main heat exchanger and allows combustion gas to flow, and a combustion gas containing the hot water heat exchanger therein. And a hot water heat exchange chamber for exchanging heat with the main heat exchanger and the bypass passage, and a hot water heat exchange chamber between the hot water heat exchange chamber. The first chamber communicates with the bypass passage, the third chamber communicates with the main heat exchanger, the second chamber further below has an inlet for the hot water heat exchange chamber, and the fourth chamber has the hot water heat exchange chamber. Equipped with a chamber outlet and an exhaust path,
Further, the first chamber and the second chamber are opened and closed by a first damper.
The third chamber and the fourth chamber communicate with each other through an opening, and communicate with each other through a second opening that is opened and closed by a second damper.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the stove alone operation, the second damper 35 opens the second opening 34 so that the third chamber 31 and the fourth chamber 31 are closed.
By communicating the chamber 33, the main heat exchanger 13 and the exhaust path 2
5 and the first damper 30 closes the first opening 29 to prevent the communication between the first chamber 26 and the second chamber 28 and cut off the bypass passage 19 side. The combustion gas generated in the combustion of 1 rises in the combustion tube 3 made of a heat-resistant transparent body, flows into the upper main heat exchanger 13 while heating the red-hot body 4 hanging from above, and By using a convection fan (not shown) also from the surface of the exchanger 13, heat by radiation and convection is generated, and the room is heated.

Next, in the combined operation with the hot water heating, the first damper 30 opens the first opening 29 and the first chamber 26 and the second chamber 26 are connected to each other.
By communicating the chamber 28, the bypass path 19, the hot water heat exchange chamber 24, and the exhaust path 25 communicate with each other.
5 closes the second opening 34, and the second chamber 31 and the fourth chamber 33
And the main heat exchanger 13 side is shut off, so that the combustion gas generated by the combustion of the burner unit 1
The radiant heating is performed by heating the red heat body 4 in the red heat state to perform radiant heating, and convective heating is performed using a convection fan. Thereafter, the combustion gas flows upward and the main heat exchanger 1 is heated.
3, the heat is exchanged with the hot water heat exchanger 23 in the hot water heat exchange chamber 24 through the bypass passage 19 to increase the temperature of the hot water and perform the floor heating satisfactorily.

Therefore, the hot water heat exchanger communicates with the main heat exchanger through four damper chambers, is separated from the main heat exchanger and the combustion cylinder, and at least one of the chambers is cut off when the communication is interrupted by the damper. Since the stove is an adiabatic air chamber, it is not heated when the stove is operated alone, and there is no problem that boiling noise is generated. Since the exchanger is heated, good floor heating at a high temperature can be obtained.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a stove with a built-in hot water heat exchanger according to the present invention. Reference numeral 1 denotes a burner section of a pot type or the like, which receives combustion air supplied from a combustion fan 2 and fuel supplied by a fuel supply means (not shown) to burn and generate combustion gas.

3 is located on the burner section 1 and
A combustion tube composed of a heat-resistant transparent body communicated with the combustion tube, and a tubular glowing body 4 is provided above the combustion tube, and is heated by combustion gas to glow red. Reference numeral 5 denotes a radiation chamber formed by surrounding the rear of the combustion tube 3 with a reflection plate 6, and reflects radiation of the glow of the glow 4 into the room to perform radiation heating as a stove.

Reference numeral 7 denotes a branch chamber which communicates with the combustion cylinder 3 through a communication port 8. The communication chamber 8 is covered with a guide plate 10 having an opening 9 on one side only. First and second outlets 11 and 12 are provided.

Reference numeral 13 denotes a main heat exchanger provided on the branch chamber 7, a first collecting portion 14 communicating with the first outlet 11,
A second collecting portion 17 formed by partitioning a ventilation chamber 15 communicating with the second outlet 12 with a partition plate 16;
And a plurality of heat exchange pipes 18 connecting between the second gathering portion 17 and the surrounding air is heated by heat exchange by flowing a combustion gas and convection is performed, thereby heating the room as a stove. Is what you do.

The second outlet 12 and the ventilation chamber 15 form a bypass 19 for bypassing the combustion gas without flowing through the main heat exchanger 13.

Reference numeral 20 denotes the second collecting part 17 and the first distribution pipe 2
A hot water heat exchanger 23 for heating the hot water passing therethrough by the flow of the combustion gas is accommodated in the lower part on the other side of the damper chamber, which communicates with the air through the ventilator 1 and communicates with the ventilation chamber 15 through the second circulation pipe 22. The hot water heat exchange chamber 24 communicates with the exhaust passage 25 projecting to the outside below.

The interior of the damper chamber 20 is divided into four chambers,
The first chamber 26 that communicates with the second flow pipe 22 is provided with a first damper 30 that opens and closes a first opening 29 that connects a second chamber 28 having an inlet 27 of the hot water heat exchange chamber 24 below. Further, below the third chamber 31 communicating with the first circulation pipe 21, the fourth chamber 33 having the outlet 32 of the hot water heat exchange chamber 24 and the exhaust passage 25 has the third chamber 31 and the fourth chamber 33. And a second damper 35 for alternately opening and closing a second opening 34 connecting the two and an outlet 32 of the hot water heat exchange chamber 24. The first and second dampers 30, 35 constitute a damper. .

Numeral 36 denotes a driving means comprising an actuator or the like for simultaneously driving the first damper 30 and the second damper 35. One driving lot 37 to which the first damper 30 and the second damper 35 are fixed, and a driving lot 37 37 and the drive means 36 are connected via a crank mechanism 38.

Reference numeral 39 denotes a cistern tank 40 for supplying hot water.
The hot water heated to a high temperature in the hot water heat exchanger 23 is circulated to a radiator (not shown) for floor heating by a circulation pump communicating with the hot water heat exchanger 23 through Is again circulated through the hot water heat exchanger 23 and reheated, and then sequentially circulated to perform hot water heating in combination with heating by the stove.

Next, the operation of the embodiment of the present invention will be described. First, in the stove alone operation, the second damper 35 opens the second opening 34 as shown in FIGS.
By connecting the chamber 31 and the fourth chamber 33, the main heat exchanger 1
3 communicates with the exhaust passage 25, and furthermore, the first damper 30 closes the first opening 29, thereby preventing the communication between the first chamber 26 and the second chamber 28, and shuts off the bypass passage 19 side. .

If the burner unit 1 is started to burn in this state, the generated combustion gas rises in the combustion tube 3 and
Is heated to a red heat state, the red heat state is reflected by the reflection plate 6 to perform radiant heating, and at the same time, convection heating is performed using a convection fan. After that, the combustion gas flowing into the branch chamber 7 flows through the main heat exchanger 13 from the first outlet 11 because the bypass passage 19 is blocked by the first damper 30, and exchanges heat with outside air. The room is replaced with warm air to heat the room, and is discharged from the damper room 20 to the outside through the exhaust path 35.

Next, in the combined operation of the stove and the hot water heating such as the floor heating, the first damper 30 opens the first opening 29 and the first chamber 26 and the second chamber 28 as shown in FIGS. Are communicated, the bypass path 19, the hot water heat exchange chamber 24, and the exhaust path 25 are communicated, the second damper 35 closes the second opening 34, and the second chamber 31 and the fourth chamber 33 And the main heat exchanger 13 side is shut off.

In this state, if the burner unit 1 is started to burn, or if the burning is continued during the burning, the generated combustion gas rises in the combustion tube 3 to make the red-hot body 4 into a red-hot state.
This red heat state is reflected by the reflector 6 to perform radiant heating,
At the same time, convection heating is performed using a convection fan.
Thereafter, the combustion gas flowing into the branch chamber 7 is supplied to the main heat exchanger 1.
Since the third side is shut off by the second damper 35, it enters the ventilation chamber 15 from the second outlet 12 and from there enters the damper chamber 20 via the first circulation pipe 21, and the hot water heat exchange chamber 2
4 and is discharged through an exhaust path 35.

At this time, the hot water heat exchanger 23 exchanges heat with the combustion gas flowing between the inlet 27 and the outlet 32 of the hot water heat exchange chamber 24, and the temperature of the hot water inside rises and becomes high-temperature water and circulates. The pump 39 drives and circulates through a radiator or the like for floor heating, and performs heating by floor heating together with radiant heating and convection heating by a stove.

Accordingly, in the combined operation, the combustion gas is not circulated to the main heat exchanger 13 but is circulated through the bypass 19 and exchanges heat with the hot water heat exchanger 23. In this state, heat is exchanged, and efficient floor heating is performed. In addition, the radiant heat of the red-hot body 4 and the convection fan perform the hot air heating as a stove satisfactorily.

Further, the hot water heat exchanger 23 communicates with the main heat exchanger 13 via four damper chambers 20, is separated from the main heat exchanger 13 and the combustion tube 3, and is cut off by the damper. Since at least one chamber is an adiabatic air chamber, it is not heated when the stove is operated alone, and there is no problem that boiling noise is generated.

[0024]

As described above, according to the present invention, the hot water heat exchanger is reliably prevented from being exposed to or coming into contact with the combustion gas or the hot air by the insulated air chamber of the damper chamber during the stove alone operation. When hot water heating operation starts and hot water boils instantly when hot water heating operation starts, hot water heating is not started,
There is no need to extinguish and cool the stove once, and it is possible to shift to the combined operation while continuing the stove alone operation, and it is extremely easy to use and can be used with peace of mind.

Further, during the combined operation, the combustion gas is supplied to the hot water heat exchanger by bypassing the main heat exchanger. Therefore, the heat is exchanged well with the high-temperature combustion gas, and the hot water heating also has a quick temperature rise and a high temperature. Good heating can be achieved.

Further, since the damper chamber is divided into four chambers, it is possible to smoothly switch between the stove alone and the combined use.
It can be used for a long period of time without causing blockage defects and the like.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a stove to which an embodiment of the present invention is attached.

FIG. 2 is a horizontal sectional view of the main part.

FIG. 3 is an explanatory view showing a combined operation state in a first chamber and a second chamber of the damper chamber.

FIG. 4 is an explanatory diagram showing a combined operation state in a third chamber and a fourth chamber of the damper chamber.

FIG. 5 is an explanatory diagram showing a stove alone operation state in a first chamber and a second chamber of the damper chamber.

FIG. 6 is an explanatory diagram showing a stove alone operation state in a third chamber and a fourth chamber of the damper chamber.

FIG. 7 is an exploded perspective view of the damper chamber.

[Explanation of symbols]

 Reference Signs List 1 burner section 13 main heat exchanger 19 bypass path 20 damper chamber 23 hot water heat exchanger 24 hot water heat exchange chamber 25 exhaust path 26 first chamber 27 inlet 28 second chamber 29 first opening 30 first damper 31 third chamber 32 Exit 33 Fourth chamber 34 Second opening 35 Second damper

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Noboru Ogawa 7-7 Higashi Shinbo, Sanjo City, Niigata Pref.

Claims (1)

[Claims] 1. A burner section that generates combustion gas by combustion, a main heat exchanger that circulates the combustion gas generated by the burner section, and generates heat for heating by radiation and convection from the surface, and the main heat exchanger. A hot water heat exchange chamber for receiving a hot water heat exchanger therein and exchanging heat with the combustion gas, and a hot water heat exchange with the main heat exchanger and the bypass. In a room having a damper room between the room and the room, the damper room is divided into four rooms,
The first upper chamber communicates with the bypass passage, the third chamber communicates with the main heat exchanger, the second lower chamber further has an inlet for the hot water heat exchange chamber, and the fourth chamber has the hot water heat exchanger. It has an outlet of the exchange chamber and an exhaust passage, and further communicates the first chamber and the second chamber through a first opening that is opened and closed by a first damper, and opens and closes a third chamber and a fourth chamber with a second damper. A stove with a built-in hot water heat exchanger, wherein the stove is communicated through a second opening.