JPH1026422A - Combustion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion apparatus in which there is easily and simply achieved a work of positioning an exhaust hole of an exhaust cylinder at a set position. SOLUTION: The present combustion apparatus is adapted such that an air supply cylinder 5 disposed parallely with an apparatus body M for supplying combustion air from the outside of a room to a burner 3 is disposed at an opening H provided in a wall W that partitions the room to the inside and outside. An exhaust cylinder 6 for exhausting waste gas from the burner 3 to the outside of the room is provided parallely to the apparatus body M in the adjustable state of the amount of protrusion to the apparatus body M positioned inwardly of the air supply cylinder 5. In this case, the air supply cyinder 5 and the exhaust cylinder 6 are provided detouchably to the aparatus body M, and a positioning means P is provided on the air supply cylinder 5 for restricting the movement of the exhaust cylinder 6 to the outside of the room to position the exhaust cylinder 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an air supply cylinder which is connected to a main body of a device and supplies combustion air to a burner from the outside of a room. An exhaust pipe that discharges exhaust gas from the burner to the outside of the combustion chamber is located on the cylinder inner side of the air supply cylinder, and the amount of protrusion with respect to the apparatus main body is adjustable. Related to the device.

[0002]

2. Description of the Related Art Such a combustion apparatus is configured such that an exhaust port of an exhaust pipe is positioned at a set position by adjusting a protruding amount with respect to the apparatus body, and exhaust gas from a burner is appropriately discharged outside the room. It is. In the related art, as shown in FIG. By adjusting the amount of protrusion of the cylinder 6, the exhaust port 6e is positioned at a set position.

In addition, the exhaust pipe 6 is composed of a base pipe section 6A and a front pipe section 6B which are slidably fitted to each other, and the base pipe section 6A is fitted and connected to the apparatus main body M side. Elbow 31 is attached. Furthermore, the original cylinder part 6A,
Protrusions 6a, 6b, 31a each having a bolt insertion hole are provided on each of the front cylinder portion 6B and the elbow 31. Then, the elbow 31, the base cylinder portion 6A and the front cylinder portion 6B are fitted and connected in series, and the bolt 32 is connected to each of the projections 6a,
6b and 31a, while being inserted into the bolt insertion holes, the operator visually recognizes them in the opening H provided in the wall W.
After the amount of protrusion of the exhaust pipe 6 with respect to the apparatus main body M is adjusted so that the exhaust port 6e at the tip of the front cylindrical section 6A is located at a set position by sliding between the main cylinder section 6A and the front cylinder section 6B, the 6 The exhaust port 6e is positioned at a set position by fixing the source cylinder part 6A and the tip cylinder part 6B to the elbow 31 with the nuts 33.

[0004]

However, the operation for positioning the exhaust port of the exhaust pipe at the set position, which has been conventionally performed, that is, the worker visually recognizes the exhaust pipe while the exhaust pipe is connected to the apparatus main body. Meanwhile, in the narrow opening provided in the wall, the operation of adjusting the amount of protrusion of the exhaust cylinder with respect to the apparatus main body so as to position the exhaust port at the set position is very complicated and difficult, Improvement was desired.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a combustion device in which an operation for positioning an exhaust port of an exhaust pipe at a set position is simple and easy.

[0006]

According to a first aspect of the present invention, first, an air supply cylinder is disposed in an opening of a wall portion in a state of being separated from an apparatus main body. Is inserted into the cylinder inside the air supply cylinder disposed in the opening until the movement toward the outdoor side is restricted by the positioning means provided in the air supply cylinder in a state where the air supply cylinder is separated from the apparatus main body. Thus, the exhaust port of the exhaust pipe is positioned at the set position. In this state, the exhaust pipe can be connected to the apparatus main body while adjusting the amount of projection of the exhaust pipe relative to the apparatus main body outside the opening. Therefore, the operation for positioning the exhaust port of the exhaust pipe at the set position can be simplified and facilitated as compared with the related art.

In a multi-family housing, a common supply / exhaust duct is provided along the walls of the houses arranged vertically so that the ventilation direction is upward, and the supply / exhaust duct is used to burn to the burner. A so-called common supply / exhaust system that supplies air and exhausts exhaust gas from a burner to its supply / exhaust duct may be employed. In the common supply / exhaust system, an opening is provided in the wall of the house adjacent to the supply / exhaust duct in a state of communicating with the supply / exhaust duct,
An air supply cylinder and an exhaust cylinder are arranged in the opening. In that case,
In order to prevent the exhaust gas from flowing back into the apparatus main body, it is necessary to position the exhaust port of the exhaust pipe so as to protrude laterally with respect to the inside of the supply / exhaust duct by a set amount (specifically, 40 to 50 mm). is there.

A second aspect of the present invention is directed to a combustion apparatus for a shared air supply / exhaust system, in which a positioning means is provided. In the state in which the exhaust pipe is protruded inside, the movement of the exhaust pipe to the outside of the exhaust pipe is regulated, and the exhaust pipe is positioned. Therefore, in the common supply / exhaust system, high accuracy is required for positioning of the exhaust port of the exhaust stack. Therefore, when the present invention is implemented particularly for a combustion device for the common supply / exhaust system, the exhaust port of the exhaust stack is required. This is effective in simplifying and simplifying the operation for positioning at the set position.

The characteristic structure according to the third aspect is a preferred specific structure of the positioning means, wherein the positioning means is constituted by a receiving portion for receiving a contact portion provided on the exhaust pipe. By the way, as a specific configuration of the positioning means, for example, it is composed of a cord-like tool such as a chain provided in the air supply cylinder so as to be connectable to the exhaust cylinder, and by pulling the cord-like tool, the outdoor side of the exhaust cylinder It is assumed that the system is configured so as to restrict the movement to the destination. However, in this case, it is necessary to perform the disposing work for each opening in a state where the supply cylinder and the exhaust cylinder are connected with the cord-like tool, or in a state where the supply cylinder and the exhaust cylinder are separated. Even when the installation work is performed, the work of connecting the air supply cylinder and the exhaust cylinder with the cord-like tool is required, and the work is somewhat complicated.

[0010] On the other hand, according to the characteristic structure of the third aspect, the disposing work can be performed in a state where the supply cylinder and the exhaust cylinder are separated, and furthermore, the arrangement is provided on the supply cylinder. Since it is not necessary to connect the positioning means to the exhaust pipe, the operation for positioning the exhaust port of the exhaust pipe at the set position is simplified.

According to the fourth aspect of the present invention, the receiving portion is configured so that the receiving position for receiving the abutment portion can be adjusted in the longitudinal direction of the cylinder, so that the air supply cylinder can be roughly formed in terms of dimensional accuracy. Even if it is arranged in the opening, the positioning accuracy of the exhaust port of the exhaust pipe can be increased by adjusting the receiving position.

[0012] According to the fifth aspect of the present invention, since the two parts can be coupled by the coupling means in a state where the contact portion is received by the receiving portion, the displacement of the exhaust pipe during use can be reduced. Can be prevented. Also, at the time of inspection, by switching the coupling means to the release state,
Since the exhaust stack can be removed, inspection is easy.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a combustion device for a common supply / exhaust system will be described below with reference to the drawings. As shown in FIG. 1, in a middle- and high-rise apartment house, along the wall W of each house vertically arranged,
A common supply / exhaust duct D is provided so that the ventilation direction is upward. Further, an opening H for arranging the supply cylinder 5 and the exhaust cylinder 6 of the combustion device is provided in the wall W in a state of communicating with the supply / exhaust duct D.

As shown in FIG. 1, a bath water heater as an example of a combustion device is connected to a device main body M to supply air to a burner 3 from a supply / exhaust duct D to supply air for combustion.
Is disposed in the opening H provided in the wall W, and the exhaust pipe 6 for discharging the exhaust gas from the burner 3 to the supply / exhaust duct D is located inside the cylinder of the air supply cylinder 5, and It is connected to the apparatus main body M such that the amount of protrusion relative to M is adjustable.
Then, by adjusting the amount of protrusion of the exhaust pipe 6 with respect to the apparatus main body M, the exhaust port 6e at the tip of the exhaust pipe 6 is moved laterally relative to the inside of the supply / exhaust duct D by a set amount L (specifically, 40 to 50 mm). The exhaust port 6e is positioned so as to project in the direction.

In the present invention, the supply cylinder 5 and the exhaust cylinder 6
Is provided in the apparatus main body M in a detachable manner, and the supply cylinder 5 is provided with positioning means P for regulating the movement of the exhaust pipe 6 to the outside of the air and positioning the exhaust pipe 6. The positioning means P includes a receiving portion 20 that receives the abutting portion 19 provided on the exhaust pipe 6,
Further, the receiving position at which the receiving portion 20 receives the contact portion 19 is configured to be adjustable in the longitudinal direction of the cylinder.
Further, in a state where the abutting portion 19 is received by the receiving portion 20, the coupling means F for coupling the abutting portion 19 and the receiving portion 20 is provided so as to be freely switchable between a coupled state and a released state for releasing the coupling. .

Referring to FIG. 1, the overall configuration of the bath water heater will be described. The bath water heater has a combustion chamber 2 having an open bottom surface disposed inside an outer casing 1, a burner 3 disposed at an opening at the bottom of the combustion chamber 2, and a burner disposed inside the combustion chamber 2. 3 and burner 3
A heat exchanger 4 for water heating is provided so as to be heated at. The cylindrical air supply cylinder 5 is configured to be detachably provided on the outer casing 1 with screws 17 in a state of communicating with the inside thereof. An elbow 7 is provided in an upper part of the combustion chamber 2 in communication with the inside thereof, and a cylindrical exhaust cylinder 6 having a smaller diameter than the supply cylinder 5 is located on the cylinder inner side of the supply cylinder 5. The base end is fitted and connected to the elbow 7. The exhaust cylinder 6 is configured to be detachable from the elbow 7 by screw-type fastening means 8.

1, combustion air is introduced from the air supply / exhaust duct D into the exterior casing 1 through the air supply cylinder 5 and is supplied from the bottom opening of the combustion chamber 2 through the air supply cylinder 5. The exhaust gas of the burner 3 is supplied from the combustion chamber 2 through the elbow 7 and the exhaust pipe 6 through the exhaust port 6 e at the end of the exhaust pipe 6, as shown by the black arrow in FIG. It is configured to discharge to D.

Hereinafter, each part will be described in detail. FIG.
As shown in FIG. 1, a hot water tap 11 connected to a faucet 9 and a shower fixture 10 and a bathtub (not shown) are provided on an exterior casing 1.
There are provided two circulation pipes 12 for circulating water in the inside, a water supply port 13 and the like. Burner 3 is hot water burner 3A
The heat exchanger 4 is composed of a hot water supply heat exchanger 4A heated by the hot water supply burner 3A and a bath water heated by the bath heating burner 3B. It consists of a heat exchanger 4B. The inlet of the hot water supply heat exchanger 4 </ b> A is connected to the water supply port 13, and the outlet is connected to the hot water tap 11. The inlet and outlet of the bath heat exchanger 4B are connected to the circulation pipes 12, respectively.

Next, the supply cylinder 5 and the exhaust cylinder 6 will be described with reference to FIGS. The description of the air supply cylinder 5 will be added. The air supply cylinder 5 is provided with a packing 15, an opening at an opening of a mounting frame 14 mounted on the indoor side of the wall W.
16 is provided so as to be internally fitted with the interposition thereof. Further, a support plate 18 for supporting the exhaust cylinder 6 in a mounted state is attached inside the cylinder of the air supply cylinder 5.

The exhaust cylinder 6 will be described. Exhaust stack 6
Is constituted by a base cylinder part 6A and a front cylinder part 6B which are slidably fitted to each other, and the tip of the front cylinder part 6B functions as an exhaust port 6e, and the base end of the base cylinder part 6A Is fitted and connected to the elbow 7. Then, by adjusting the overlapping length by sliding the source cylinder part 6A and the front cylinder part 6B, the amount of protrusion of the exhaust cylinder 6 with respect to the apparatus main body M is adjusted.

The elbow 7 has a pedestal 7A at its base 7A.
The base portion 7 has a relative positional relationship such that the axis of the portion where the exhaust pipe 6 is fitted and connected in the pipe portion 7B is inclined upward by about 5 ° with respect to the horizontal direction when the base portion 7 is mounted on the base portion 7.
A and the pipe portion 7B are welded. Therefore, when the exhaust pipe 6 is fitted and connected to the elbow 7, the exhaust pipe 6 has an inclined position in which the axis of the exhaust pipe 6 is inclined upward by about 5 ° with respect to the horizontal direction, so that backflow of exhaust gas can be prevented. As a result, the exhaust gas can be smoothly discharged.

Next, the positioning means P will be described with reference to FIGS. The positioning means P includes a receiving portion 20 that receives the contact portion 19 provided on the exhaust pipe 6. The attaching section 19 will be described. The abutting portion 19 is formed by bending a long plate-like body into a U-shape, and has both ends of the U-shape at the end of the front cylinder portion 6B in a state of crossing the exhaust port 6e. It is attached. Further, the abutting portion 19 is formed with a hole 19h for inserting a butterfly screw 22 constituting a coupling means F described later.

The receiving portion 20 will be described. The receiving portion 20 is formed by molding the channel member into an L-shape, and one side of the L-shape has a long hole 20 s for inserting a butterfly screw 21 for attachment along the longitudinal direction. On the other side, a butterfly screw screwing slit 20n is formed so that a butterfly screw 22 constituting the coupling means F described later can be screwed at any position in the longitudinal direction. Then, the receiving portion 20 is positioned on the inner surface of the air supply cylinder 5 such that the longitudinal direction of the side on which the butterfly screw screw-in slit 20n is formed is oriented vertically, and the butterfly screw 21 is formed.
Is inserted into the long hole 20 s and screwed into the inner surface of the air supply cylinder 5 to attach the receiving portion 20 to the air supply cylinder 5. At this time, the receiving portion 20 is supplied by the long hole 20 s. The mounting position is adjustable by moving the cylinder 5 in the longitudinal direction of the cylinder. That is, the receiving position at which the receiving portion 20 receives the abutment portion 19 is configured to be freely adjustable in the longitudinal direction of the air supply cylinder 5.

Next, the coupling means F will be described.
The coupling means F includes a butterfly screw 22 and a butterfly screw screwing slit 20n formed in the receiving portion 20 so that the butterfly screw 22 can be screwed at any position in the longitudinal direction.
In other words, even if the amount of protrusion of the exhaust pipe 6 with respect to the apparatus main body M changes and the relative positional relationship between the abutting portion 19 and the receiving portion 20 changes in the vertical direction, the connecting means F is connected so that they can be connected. The coupling position can be changed and adjusted vertically.

Hereinafter, a procedure for disposing the supply cylinder 5 and the exhaust cylinder 6 in the opening H of the wall W will be described with reference to FIG. First, the mounting frame 14 is mounted on the wall W. Next, in a state where the air supply cylinder 5 is separated from the apparatus main body M, the air supply cylinder 5 is provided inside the opening of the mounting frame 14 with the packings 15 and 16 interposed therebetween. At that time, when the apparatus main body M is installed at a predetermined position, the air supply cylinder 5 is positioned so that the air supply cylinder 5 can be attached to the outer casing 1.

Next, loosen the butterfly screw 21 and
0 is moved in the longitudinal direction of the cylinder, and the tip thereof moves laterally with respect to the inside of the supply / exhaust duct W by an amount corresponding to the set amount and the amount of projection of the abutting portion 19 from the tip of the exhaust cylinder 6. After being positioned at a position where it protrudes in the direction, the butterfly screw 21 is tightened to fix the receiving portion 20 to the air supply cylinder 5.

Next, while the exhaust pipe 6 is separated from the apparatus main body M, the exhaust pipe 6 is inserted into the air supply cylinder 5 and placed on the support plate 18 to be supported until the contact section 19 hits the receiving section 20. Next, the butterfly screw 22 is
, And screwed into the butterfly screw screwing slit 20 n of the receiving portion 20 to fix the exhaust cylinder 6 to the air supply cylinder 5.

Next, by adjusting the overlapping length by sliding the main cylinder portion 6A and the front cylinder portion 6B, the amount of protrusion of the exhaust cylinder 6 with respect to the apparatus main body M is adjusted. The base end is fitted and connected to the elbow 7 and fixed to the elbow 7 by the screw type fastening means 8.

Next, the air supply cylinder 5 is fixed to the outer casing 1 with screws 17.

[Another Embodiment] Next, another embodiment will be described. (A) The shape of each of the abutting portion 19 and the receiving portion 20 can be various shapes other than the shape exemplified in the above embodiment. For example, if the surfaces of the abutting portion 19 and the receiving portion 20 that come into contact with each other are formed in a wide shape, and the relative positional relationship between the abutting portion 19 and the receiving portion 20 is slightly shifted in the circumferential direction, the abutting portion 19 is You may comprise so that the receiving part 20 may receive.

(B) The position where the contact portion 19 is installed on the exhaust tube 6 and the position where the receiving portion 20 is installed on the air supply cylinder 5 can be changed. For example, the attaching unit 19
It may be installed so that it can be received by the receiving part 20 at a position retreated from the exhaust port 6e to the indoor side by the set amount. In this case, the receiving part 20 is
May be installed so as to be received at a position overlapping the inner wall surface of the air supply / exhaust duct D in a top view, so that the adjustment of the receiving position is facilitated.

(C) The receiving portion 20 is the contact portion 1
In the above-described embodiment, the receiving portion 20 is configured to be movable in the cylinder longitudinal direction of the air supply cylinder 5 as a configuration for making the receiving position for receiving the cylinder 9 adjustable in the cylinder longitudinal direction of the air supply cylinder 5. Was exemplified. Alternatively, the contact portion 19 may be configured to be movable in the longitudinal direction of the exhaust cylinder 6.

(D) As a configuration for enabling the receiving portion 20 to move in the cylinder longitudinal direction of the air supply cylinder 5, in the above embodiment, the butterfly screw 21 and the elongated hole 20s formed in the receiving portion 20 are provided. The case of the configuration is illustrated. Instead, in the state of being elastically urged in the contacting direction, a contacting means for contacting the receiving portion 20 is provided, and the receiving portion 20 is moved in the cylinder longitudinal direction against the elastic urging force of the contacting means. You may comprise so that it may be movable and the position of the receiving part 20 may be hold | maintained by the said elastic biasing force. In this case, it is not necessary to fix the receiving portion 20 with the butterfly screw 21 or the like, so that the operation can be further simplified.

(E) The receiving portion 20 is attached to the contact portion 1
9 may be provided in a state where the receiving position is fixed to the air supply cylinder 5. In this case, when disposing the air supply cylinder 5 in the opening H, the air supply cylinder 5 may be moved in the cylinder longitudinal direction to adjust the receiving position.

(F) Receiving part 20 and contact part 1
Various configurations other than the configurations exemplified in the above embodiment are possible for the configuration for making each of the nine units detachable from the apparatus main body M. For example, a configuration that does not require a screw-type or other fastening means, such as a concavo-convex engagement means that automatically engages by rotation, may be employed.

(G) The contact portion 19 and the receiving portion 20
Various configurations other than the configuration exemplified in the above-described embodiment are possible for the specific configuration of the coupling unit F that switches between the coupling state and the release state for releasing the coupling. For example, a configuration that does not require a fastening means such as a thumb screw 22 such as an uneven engagement means that automatically engages with an elastic urging force may be employed.

(H) Various configurations other than the configuration exemplified in the above embodiment are possible for the configuration for making the coupling position of the coupling means F changeable in the vertical direction. For example, the receiving portion 20 has a butterfly screw screwing slit 2.
Instead of forming 0n, a nut for screwing the butterfly screw 22 may be provided on the receiving portion 20 so as to be slidably movable in the vertical direction.

(I) As a specific configuration for adjusting the amount of protrusion of the exhaust cylinder 6 with respect to the apparatus main body M, the overlapping of the former cylinder part 6A and the former cylinder part 6B due to sliding as exemplified in the above embodiment. Various configurations other than the configuration for adjusting the length are possible. For example, a bellows portion that can adjust the length of the exhaust pipe 6 may be provided.

(G) The exhaust pipe 6 is connected to the exhaust port 6 at the tip thereof.
Various configurations other than the configuration exemplified in the above-described embodiment are possible as a specific configuration for providing e in an inclined posture in which it is located above. For example, the exhaust cylinder 6 is configured to be connected to the apparatus main body M in a state in which the exhaust cylinder 6 can swing up and down around its base end, and the inclination angle when the exhaust cylinder 6 is provided in an inclined posture is adjusted. You may comprise as possible. In this case, the inclination angle of the exhaust pipe 6 can be adjusted optimally. In addition, as a specific configuration for enabling the exhaust pipe 6 to swing up and down around its base end, for example, a bellows-shaped pipe can be used.

(G) In the above embodiment, the case where the present invention is applied to a bath kettle hot water supply device having both a hot water supply function and a bath heating function has been described. Instead, the present invention can be applied to a hot water supply device having only a hot water supply function or a bath kettle having only a bath heating function.

(ヲ) In the above embodiment, the case where the present invention is applied to a common supply / exhaust type combustion apparatus has been described as an example. However, the present invention is applicable to a common supply / exhaust type combustion apparatus. The present invention is not limited to this, and can be applied to various combustion devices that require the exhaust port of the exhaust stack to be positioned at a set position. For example, the present invention can be applied to a combustion device in which an exhaust port of an exhaust pipe is provided so as to protrude outside.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state where a combustion device is installed.

FIG. 2 is a longitudinal sectional view showing the vicinity of a supply cylinder and an exhaust cylinder.

FIG. 3 is a perspective view showing a configuration of a supply cylinder and an exhaust cylinder.

FIG. 4 is an exploded perspective view showing the configuration of a supply cylinder and an exhaust cylinder.

FIG. 5 is an exploded perspective view showing an installation configuration of an exhaust pipe.

FIG. 6 is a longitudinal sectional view showing the vicinity of a supply cylinder and an exhaust cylinder in a conventional combustion device.

[Explanation of symbols]

 3 Burner 5 Supply cylinder 6 Exhaust cylinder 6e Exhaust port 19 Applying part 20 Receiving part D Supply / exhaust duct F Coupling means H Opening M Device body P Positioning means W Wall

Claims (5)

[Claims] An air supply cylinder connected to an apparatus main body and supplying combustion air to a burner from the outside of the room is disposed in an opening provided in a wall partitioning the inside and outside of the room, and an exhaust gas from the burner is provided. A combustion device connected to the device main body in a state in which an exhaust cylinder that discharges the air outside the cylinder is located inside the cylinder of the air supply cylinder and the amount of protrusion from the device main body is adjustable. The air supply cylinder and the exhaust cylinder are provided in the apparatus main body in a detachable state, and the air supply cylinder is provided with positioning means for restricting movement of the exhaust cylinder to the outdoor side and positioning the exhaust cylinder. Burning device. 2. An air supply / exhaust duct is provided adjacent to the wall and in communication with the opening so that a ventilation direction is upward. The positioning means is configured to be provided in a state of protruding by a set amount in the lateral direction with respect to the inside of the exhaust duct, and in a state where the exhaust port protrudes into the supply / exhaust duct by the set amount, The combustion device according to claim 1, wherein movement of the exhaust stack toward the outdoor side is regulated to position the exhaust stack. 3. The combustion device according to claim 1, wherein said positioning means is constituted by a receiving portion for receiving a contact portion provided on said exhaust pipe. 4. The combustion device according to claim 3, wherein the receiving portion is configured to adjust a receiving position for receiving the abutting portion in a longitudinal direction of the cylinder. 5. In a state in which the abutting portion is received by the receiving portion, a connecting means for connecting the abutting portion and the receiving portion is provided so as to be switchable between a connected state and a released state for releasing the connection. Claim 3 or 4
A combustion device as described.