JP3754486B2 - Combustor burner unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a burner unit for a combustor including a heat exchanger section and a burner case that houses a burner attached to the heat exchanger section.
[0002]
[Prior art]
Conventionally, as a burner unit of this type of combustor, there is one as shown in FIG.
[0003]
That is, the heat exchanger 1 and the burner case 2 are fixed to each other via a gasket 6 and an inner case 4, and the burner 3 is attached to the inside of the burner case 2 through an opening 7 provided in the lower part of the burner case 2. A burner unit in which the opening 7 is closed with a cover 8.
[0004]
Since the heat exchanger and the burner case need to be sealed and communicated, they are usually fixed with a gasket interposed therebetween as described above.
[0005]
[Problems to be solved by the invention]
However, in such a conventional burner unit, since the heat exchanger and the burner case are fixed, the maintenance of the heat exchanger and the burner, and the trouble of cleaning them and the burner case are troublesome. was there.
[0006]
The present invention has been made paying attention to such conventional problems, and the burner case accommodated in the burner case is integrated into the lower part of the heat exchanger while exhibiting good airtightness. It is an object of the present invention to provide a burner unit for a combustor that can be easily maintained and cleaned.
[0007]
[Means for Solving the Problems]
The gist for achieving such an object lies in the following sections.
[0009]
[ 1 ] In a burner unit (10) of a combustor comprising a heat exchanger section (30) and a burner case (C) containing a burner (B) attached to the heat exchanger section (30).
The burner case (C) containing the burner (B) is provided with an attachment mechanism (20) that can be attached to and detached from the heat exchanger part (30),
The attachment mechanism (20) includes a guide portion (21) provided at a lower portion on both side surfaces of the heat exchanger portion (30) and an upper portion on both side surfaces of the burner case (C) guided to the guide portion (21). And a guided portion (41) provided in
The guide portions (21) on the both side surfaces guide the guided portion (41) when the burner case (C) is inserted and removed between the guide portions (21), and receive the burner case from the receiving end (23) of the burner case (C). (C) The receiving end (23) so that the burner case (C) is displaced along a certain inclination direction until the other end (24) reaching the lower part of the heat exchanger part (30). ) Side has a first inclined part (S1) that continues upward from the other end part (24) side,
The overall length of the first inclined portion (S1) is substantially the same as the length of the burner case (C),
The guide portions (21) on both side surfaces are covered from the surface on which the gasket (G) is provided to the first inclined portion (S1),
In the guided portion (41), when the burner case (C) is put in and out between the guide portions (41) on both side surfaces, the upper surface of the burner case (C) is a lower portion of the heat exchanger portion (30). Combustion characterized by having a second inclined portion (S2) that continues upward upward from one end side (c1) to the other end side (c2) of the burner case (C) so as to be always parallel to Machine burner unit (10).
[0010]
[2] A support piece (25) standing on the receiving end (23) side is provided at the lower part of the heat exchanger part (30),
The burner case (C) can be hung on the support piece (25) when the burner case (C) is housed between the guide portions (21) and fixed tightly on the upper end of one end of the burner case (C). The burner unit (10) for a combustor according to item 1, wherein a piece (42) is provided.
[0011]
The burner unit (10) of the combustor is detachably mounted with a burner case (C) containing the burner (B) in the heat exchanger section (30) by the mounting mechanism (20).
[0013]
When the burner case (C) is taken in and out between the guide portions (21) on both side surfaces, the other from the receiving end (23) side of the guide portion (21) for receiving the burner case (C). From the one end side (c1) of the burner case (C) of the guided part (41) to the first inclined part (S1) provided so as to continue upward toward the end part (24) side. The second inclined portion (S2) provided so as to continue upward is slid toward the end side (c2). Thereby, while the burner case (C) moves between the receiving end (23) and the other end (24), its upper surface is always parallel to the lower part of the heat exchanger part (30). Displace up and down while maintaining the state.
[0014]
Therefore, when the burner case (C) is pushed between the guide parts (21), the upper surface of the burner case (C) does not rub against the lower part of the heat exchanger part (30), and the burner case (C ) In the fully pushed position abuts the lower part of the heat exchanger part (30). By fixing to the heat exchanger part (30) in that state, the burner case (C) can be easily brought into close contact with the heat exchanger part (30).
[0015]
In order to further improve the hermeticity of the heat exchanger part (30) and the burner case (C), a support piece (25) is erected on the receiving end part (23) side below the heat exchanger part (30). If a retaining piece (42) that can be hung on the support piece (25) is provided on the upper end of one end of the burner case (C), the burner case (C) is placed in the heat exchanger. When tightly fixing to the part (30), the contact piece between the burner case (C) and the heat exchanger part (30) is more spaced by hanging the retaining piece (42) on the support piece (25). Since it can be kept small, the sealing performance is further improved.
[0016]
On the other hand, when performing maintenance of the heat exchanger part (30) and the burner (B), and cleaning of the burner case (C) and the like, the burner case (C) is connected to the heat exchanger part ( 30). At that time, the guided portion (41) is supported by the guide portion (21), so that the burner case (C) can be easily removed.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0018]
1 to 4 show an embodiment of the present invention.
[0019]
As shown in FIG. 1, the burner unit 10 is attached to a combustor, and includes heat exchanger sections 30 and 60 and a burner case C that houses a burner B attached to the lower part thereof. A cover is attached on the heat exchanger sections 30 and 60. As a combustor equipped with such a burner unit, for example, there is one used for hot water supply or a bath in a general household. Hereinafter, the heat exchanger unit 30 and the burner case C that houses the burner B attached thereto will be described, and the heat exchanger unit 60 and related devices can be configured in the same manner, and detailed description thereof will be omitted.
[0020]
FIG. 1 and FIG. 2 show a part of a combustor including a heat exchanger 30 for hot water supply and a heat exchanger 60 for bath inside. Although not shown, a burner is also attached to the heat exchanger unit 60. Tubular bodies 31 and 61 circulated around the heat exchanger section 30 and the heat exchanger section 60 are used to supply water to the heat exchangers 30 and 60 and to discharge hot water heated by the heat exchangers 30 and 60, respectively. Part of the hot water supply circuit.
[0021]
The burner unit 10 includes an attachment mechanism 20 that can easily attach and detach the burner case C in which the burner B is stored and fixed to the lower part of the heat exchanger section 30.
[0022]
The attachment mechanism 20 includes guide portions 21 and 21 provided at lower portions on both side surfaces of the heat exchanger portion 30 and guided portions 41 and 41 provided on upper portions on both side surfaces of the burner case C led to the guide portions 21 and 21.
[0023]
As shown in FIG. 2, the guide portions 21 and 21 are made of a metal such as stainless steel, for example, and a planar portion that hangs vertically from the lower portions of both side surfaces of the heat exchanger portion 30 and the vicinity of the lower side are perpendicular to the inside. It consists of the part S1 bent in the direction. As shown in FIG. 3, when the burner case C is attached to and detached from the lower portion of the heat exchanger section 30, the burner case C is bent along a certain inclination direction. A first inclined portion S1 is formed so as to be displaced from the receiving end portion 23 side toward the other end portion 24 side with a constant gradient. The distance between the guide portions 21 and 21 and the width of the first inclined portions S1 and S1 are set to a size capable of gripping the guided portions 41 and 41 described later.
[0024]
The burner case C is provided with guided portions 41, 41 at the upper part of both side surfaces thereof.
[0025]
The guided portions 41 and 41 are also made of stainless steel or other metal, and are formed in a U-shaped cross section that fits in the guide portion 41 as shown in FIGS. The bottom surface of the guided portion 41 is slidable with respect to the first inclined portion S1 of the guide portion 21 when the burner case C is inserted and removed between the guide portions 21 and 21, as shown in FIGS. A first continuous upper surface of the burner case C from one end c1 to the other end c2 with the same gradient as the first inclined portion S1 so that the upper surface of the case C is always parallel to the lower portion of the heat exchanger section 30. Two inclined portions S2 are formed.
[0026]
As shown in FIGS. 2 to 4, a gasket G for maintaining airtightness when attached to the lower part of the heat exchanger section 30 is provided at the peripheral edge of the upper surface of the burner case C.
[0027]
In addition, a plate-like support piece 25 standing on the receiving end 23 side is provided at the lower part of the heat exchanger section 30. On the other hand, a plate-like hooking piece 42 that can be hung on the support piece 25 when the burner case C is housed between the guide parts 21 and fixed tightly is provided at the upper part of the one end c1 of the burner case C. . The latching piece 42 is composed of a plane rising from one end portion c1 of the burner case C and a portion bent toward the other end portion c2 in order to hang the upper portion on the support piece 25. A screw hole (not shown) for fixing the burner case C to the lower portion of the heat exchanger section 30 is formed in the standing portion of the latching piece 42 and the support piece 25, and the burner case C is connected to the guide section 21. When fully pushed in between 21, the upright portion of the latching piece 42 is in contact with the support piece 25 and the screw holes are aligned.
[0028]
Next, the operation will be described.
[0029]
3 and 4 show the state of the process of attaching the burner case C in which the burner B is housed and fixed in the heat exchanger section 30 of the burner unit 10 of the combustor.
[0030]
The attachment mechanism 20 is a burner in which the burner B is accommodated by guide portions 21 and 21 provided at the lower portions of both side surfaces of the heat exchanger portion 30 and guided portions 41 and 41 provided at the upper portions of both side surfaces of the burner case C. Case C can be guided to a predetermined position.
[0031]
That is, when the burner case C is put in and out between the guide portions 21 and 21 on both sides, the second inclined portions S2 of the guided portions 41 and 41 along the first inclined portions S1 and S1 of the guide portions 21 and 21, S2 slides, whereby the burner case C can be moved between the receiving end 23 and the other end 24, and can be fixed at a predetermined position and removed from the predetermined position.
[0032]
FIG. 3 shows a state when the burner case C is pushed between the guide portions 21 and 21. That is, in a state where the guided portions 41 and 41 of the burner case C are held by the guide portions 21 and 21 provided at the lower part of the side surface of the heat exchanger portion 30 and the burner case C is pushed in the direction of the arrow A1. is there.
[0033]
The second inclined portions S2 and S2 of the guided portions 41 and 41 are in contact with the first inclined portions S1 and S1 of the guide portions 21 and 21, respectively. Since the slopes of the first inclined portions S1 and S1 and the second inclined portions S2 and S2 are the same, the burner case C is displaced upward with its upper surface kept parallel to the lower surface of the heat exchanger portion 30. Can do. In addition, the burner case C in which the burner B is stored is considerably heavy, but the load is distributed when the guide portions 21 and 21 hold the guided portions 41 and 41, so that the burner case C can be easily mounted. It becomes.
[0034]
As shown in FIG. 4, the upper surface of the burner case C abuts the lower part of the heat exchanger part 30 at the position where the burner case C is completely pushed in, so that it is slidably contacted with the lower part of the heat exchanger part 30 during displacement. The gasket G is not peeled off or twisted, and the airtightness is not impaired. Therefore, the burner case C can be easily brought into close contact with the heat exchanger section 30 by being fixed to the heat exchanger section 30 in this state.
[0035]
The raised portion of the latching piece 42 provided on the upper end of one end of the burner case C is in contact with the support piece 25 provided so that the burner case C stands on the receiving end 23 side of the lower portion of the heat exchanger section 30. The upper surface of the burner case C presses the lower surface portion of the heat exchanger section 30 more strongly through the gasket G so that the upper end of the hooking piece 42 is hung on the support piece 25. Since the raised part of 42 and the screw hole formed in the support piece 25 overlap, if the support piece 25 and the latching piece 42 are fixed with a screw, airtightness will increase more.
[0036]
On the other hand, when performing maintenance of the heat exchanger section 30 and the burner B or cleaning them and the burner case C, the fixing of the burner case C to the heat exchanger section 30 is released. While the guide portions 41 and 41 are held by the guide portions 21 and 21 of the heat exchanger portion 30, the load of the burner B and the burner case C is distributed to them. Can be easily removed by pulling it forward while lightly supporting one end of the burner case C. Moreover, the safety | security at the time of attachment or detachment of the burner case C which accommodated the heavy burner B can also be improved.
[0037]
【The invention's effect】
According to the burner unit of the combustor according to the present invention, it is possible to easily attach and detach the burner in the lower part of the heat exchanger while exhibiting good airtightness by integrating the burner in the burner case. Maintenance and cleaning of the machine can be facilitated, and safety when handling a burner case containing a heavy burner is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a burner unit of a combustor according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a burner unit of a combustor according to one embodiment of the present invention.
FIG. 3 is a side view showing a burner unit of a combustor according to an embodiment of the present invention.
FIG. 4 is a side view showing a burner unit of a combustor according to an embodiment of the present invention.
FIG. 5 is a perspective view showing a burner unit of a conventional combustor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Burner unit 20 ... Mounting mechanism 21 ... Guide part 23 ... Accepting end part 24 of guide part ... Other end part 25 of guide part ... Supporting piece 30 ... Heat exchanger part 41 ... Guided part 42 ... Hanging piece B ... Burner C ... burner case c1 ... one end side c2 of the burner case ... the other end side S1 of the burner case ... first inclined portion S2 ... second inclined portion

Claims (2)

In a burner unit of a combustor comprising a heat exchanger part and a burner case containing a burner attached to the heat exchanger part,
The burner case that houses the burner includes an attachment mechanism that can be attached to and detached from the heat exchanger unit,
The mounting mechanism includes a guide portion provided at a lower portion of both side surfaces of the heat exchanger portion, and a guided portion provided at an upper portion of both side surfaces of the burner case guided to the guide portion,
The guide portions on both side surfaces guide the guided portion when the burner case is inserted and removed between them, and from the receiving end portion of the burner case to the other end portion where the burner case reaches the lower portion of the heat exchanger portion. In the meantime, it has a first inclined portion that continues upward from the receiving end side toward the other end side so as to displace the burner case along a certain inclination direction,
The total length of the first inclined portion is substantially the same as the length of the burner case,
The guide portions on both side surfaces are covered from the surface where the gasket is provided to the first inclined portion,
The guided portion is one end side of the burner case so that the upper surface of the burner case is always parallel to the lower portion of the heat exchanger portion when the burner case is put in and out between the guide portions on both sides. A burner unit for a combustor comprising a second inclined portion that continues upward upward from the first end toward the other end. A support piece standing on the receiving end side is provided at the lower part of the heat exchanger part,
2. A hooking piece that can be hung on the support piece when the burner case is housed between the guide parts and fixed tightly to the upper end portion of the burner case. The burner unit of the described combustor.

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