CN1834536A

CN1834536A - Burning device

Info

Publication number: CN1834536A
Application number: CNA2006100678867A
Authority: CN
Inventors: 佐佐木宏明; 片冈邦夫; 竹内誉树; 川岛刚; 冈本英男
Original assignee: Rinnai Corp
Current assignee: Rinnai Corp
Priority date: 2005-03-14
Filing date: 2006-03-14
Publication date: 2006-09-20
Anticipated expiration: 2026-03-14
Also published as: CN100510527C; JP4129266B2; KR100661057B1; KR20060100921A; JP2006250484A

Abstract

The invention relates to a burner, which comprises: several parallel burning devices (4) on the transverse burning box (2) whose front-back direction is the long direction; the composite connector (8) that sealing the opening (22) formed on the front plate (21) of burning box to be mounted on the burning box, while the fuel gas will be injected from the fuel gas nozzle (81) of composite connector to the fuel gas inlet (4a) of burning devices; and a step surface (23) that front-and-back projected from the upper edge of opening while the front plate is at the front of opening; the upper edge of composite connected via sealing element (9) is compressed on said step surface. Therefore, the composite connected can be small, and the producing cost and time of composite connector can be reduced.

Description

Burner

Technical field

The present invention relates to a kind ofly have portion within it with a plurality of burners that are arranged side by side burning basket in the horizontal with fore-and-aft direction as its more rectangular always burner of configuration.

Background technology

As everyone knows, in the past, as this burner, it has to be installed in the manifold on the burning basket to carrying out the mode of shutoff at formed opening on the preceding board of burning basket, makes the gas-flow inlet of combustion gas set a plurality of gas nozzles a plurality of burners in the burning basket from the manifold spray (for example opening the 2000-283462 communique with reference to the spy).

At this, be that the upper section that the opening of the preceding board of burning basket forms the position becomes with one side continuously with opening formation position in the past.And, in order to ensure the manifold of opening upside and the sealing between the preceding board, and the upper limb of manifold be formed with extend to opening above prolong and portion, this being prolonged portion through seal member and land form at the opening of preceding board under the state of upper section of position, will prolong a plurality of positions card that portion with screw and end on preceding board.

Like this, because be that upper limb at manifold forms and prolongs portion in the past, so, make the manifold maximization that becomes, so that improved cost, in addition, because the quantity that the screw card stop bit of manifold is put increases, and produced because of increasing the problem of the cost increase that is brought man-hour.

Summary of the invention

The present invention in view of the above-mentioned problems, with provide a kind of can be so that the manifold miniaturization, and the man-hour that can also cut down the assembling operation of manifold, realize that burner that cost reduces is as its problem.

For solving above-mentioned problem, burner of the present invention, it has: within it portion with a plurality of with fore-and-aft direction as the more rectangular always burner of configuration be arranged side by side in the horizontal the burning basket and to be installed in the manifold on the burning basket to carrying out the mode of shutoff at formed opening on the preceding board of burning basket, make combustion gas spray from gas-flow inlet at a plurality of burners of a plurality of gas nozzles set on the manifold in the burning basket; It is characterized in that, the opening of the preceding board by making burning basket forms the position and is offset to the rear with respect to the part of the preceding board of the top of this position, and be formed with the cascaded surface of fore-and-aft direction, and make the upper limb of manifold be connected to this cascaded surface through seal member at the upper limb of opening formation position.

According to the present invention, the cascaded surface of the upper limb of opening as sealing surface, can be guaranteed the manifold of opening upside and the sealing between the preceding board.Therefore, there is no need to form overlapping the prolonging of upper section that opening with preceding board forms the position and portion at the upper limb of manifold, thus can be by saving this part so that the manifold miniaturization realizes the reduction of cost.

In addition, in order to guarantee sealing reliably, must under the state of the seal member between the upper limb of compression cascaded surface and manifold, manifold be installed.At this, the operator will be difficult in the compression reaction force of opposing seal member and the state of electing manifold gets off and with screw the manifold card ended on preceding board.

For this reason, preferably in the both lateral sides portion of the rear surface of manifold, be formed with the 1st projection that the 1st connecting hole that forms with the both lateral sides portion that offers the position at the opening of the preceding board of burning basket engages, by engaging of the 1st projection and the 1st connecting hole, manifold is remained on can be on the above-below direction position of the described seal member of compression between the upper limb of manifold and the described cascaded surface.In view of the above, by making the 1st protrusions snap, can under the state of upper limb that compresses manifold and the seal member between the cascaded surface, keep manifold in the 1st connecting hole.Therefore, when the screw card of manifold ends, there is no need to lift manifold with hand push, easy thereby the operation that makes the screw card end becomes.

In addition, if described the 1st projected front ends is rounded, described the 1st connecting hole is formed by the plunging hole that the bight has fillet, then helps making the 1st projection easily to insert the 1st connecting hole.

In addition, if upper limb at manifold, be formed with the 2nd projection that engages with the 2nd connecting hole that forms at described cascaded surface,, can prevent that also the upper limb of manifold from coming off from cascaded surface even be limited on the preceding board without the upper edge portion of screw with manifold.Therefore, can reduce the quantity that screw card stop bit is put, can cut down the man-hour of the assembling operation of manifold again, thereby realize the reduction of cost.In addition, when the assembling manifold, at first, if make manifold be the hypsokinesis posture, and make the 2nd protrusions snap in the 2nd connecting hole, under this state, manifold is formed the words that the position is pressed into the rear towards the opening of preceding board, then can be by being the leverage of fulcrum with the 2nd projection that is sticked in the 2nd connecting hole, and with stronger power the 1st projection is pressed in the 1st connecting hole.And, when this is pressed into, by acting on the component towards the top of the reaction force on the manifold, and can easily compresses the upper limb of manifold and the seal member between the cascaded surface, thereby make the assembling operation of manifold become easier.

Description of drawings

Fig. 1 represents the front view of the burner of embodiments of the present invention.

Fig. 2 is the stereogram of mounting structure of valve cell of the burner of presentation graphs 1.

Fig. 3 represents the profile by the III-III line cutting of Fig. 1.

The stereogram of the burning basket of the burner of Fig. 4 presentation graphs 1 and the released state of manifold.

Fig. 5 represents from the stereogram of the oblique rear observation of manifold.

Fig. 6 represents by the amplification profile under the manifold installment state of the VI-VI line cutting of Fig. 4.

The specific embodiment

With reference to Fig. 1, the 1st, expression is as the external box of microvave of the hot water supply device of burner, and the front of external box of microvave 1 is made of dismounting front panel 1a freely.Externally in the casing 1, dispose the heat exchanger 3 of the upside of burning basket 2 and burning basket 2.In burning basket 2, be arranged side by side in the horizontal a plurality of with fore-and-aft direction as its more rectangular always burner 4 (with reference to Fig. 3, Fig. 4) of configuration.And, make the attachment 5 that combustion gas is used from the combustion gas pipe arrangement on the lower surface of the lower board unit 11 that is installed in external box of microvave 1, and via valve cell 6, combustion gas tube parts 7 and be installed in the manifold 8 on the burning basket 2 and supply with these burners 4.In addition, heat exchanger 3 is provided with the heat supply hydrothermal exchange 3a of portion and water for bathing appends hot heat exchange department 3b.And, in burning basket 2, dispose be divided into the heat supply hydrothermal exchange 3a of portion with and water for bathing append the burner 4 that hot heat exchange department 3b uses.

As shown in Figure 2, attachment 5 have: be fixed on flange part 51 on the lower surface of lower board unit 11 of external box of microvave 1 with screw 51a, be positioned at the Gas Pipe connecting portion 52 of below of flange part 51 and the valve connecting portion 53 that is positioned at the top of flange part 51, wherein valve connecting portion 53 also is passed in formed open-work 12 on the lower board unit 11 and is projected into the top of lower board unit 11.In addition, in valve cell 6, be assembled with: connect and cut off control to the electromagnetic switch valve 61 of the upstream side of the fuel gas supply of burner 4 and increase and decrease the solenoid valve 62 of control to the downstream of the fuel gas supply amount of burner 4.In addition, on valve cell 6, also be formed with: be embedded in the combustion gas inflow portion 63 of tubular of valve connecting portion 53 of attachment 5 and the combustion gas outflow portion 64 that is connected in combustion gas tube parts 7.

In addition, be formed with in the end of combustion gas inflow portion 63: be projected into radial outside also in a circumferential direction with 180 ° of a pair of juts 65 of spending arranged spaced.And, externally on the lower board unit 11 of casing 1, be provided with a pair of engaging pawl 13 in the following manner, promptly, this a pair of engaging pawl 13 also can fasten with jut 65 corresponding to a pair of jut 65, and when combustion gas inflow portion 63 being embedded under the state of valve connecting portion 53 of attachment 5 valve cell 6 is rotated, this engaging pawl 13 is the rotary motion trace that are positioned at jut 65.Each engages pawl 13 and forms: the hook-type of bend of rising portions upper end that has the rising portions of a lateral margin that is connected to each jut 65 and be sticked in the upper surface of each jut 65.In addition, in the present embodiment, the cutting by lower board unit 11 levers up, and forms respectively to engage pawl 13, on lower board unit 11, be formed with extend to radial outside from open-work 12 and be used to cut the incised notch portion 14 that levers up engaging pawl 13.Therefore, for jut 65 is not dropped in this incised notch portion 14 and jut 65 is formed the wide cut also wideer than incised notch portion 14.

When the installation of valve cell 6, at first, shown in Fig. 2 (a), be fixed on the lower surface of lower board unit 11 with the flange part 51 of screw with attachment 5.Then, shown in Fig. 2 (b), make jut 65 be in and observe the position leave engaging pawl 13 in the clockwise direction, make the combustion gas inflow portion 63 of valve cell 6 be embedded in the valve connecting portion 53 of the attachment 5 of the top that is projected into lower board unit 11 again from the top.Afterwards, observe, make valve cell 6, shown in Fig. 2 (c), make jut 65 be embedded in engaging pawl 13 by counterclockwise rotating from the top.In view of the above, 6 of valve cells are in the state that comes off from attachment 5 of being prevented from.In addition, when valve cell 6 be in jut 65 be sticked in the engaging pawl 13 phase place the time, combustion gas outflow portion 64 is towards the place ahead.Then, manifold 8 is installed on burning basket 2 from the place ahead, and simultaneously, by being screwed to the screw 71 in the formed screw hole 66 on the both sides of the chest side of the combustion gas outflow portion 64 of valve cell 6, and end on valve cell 6 from the place ahead with the bottom card of screw with combustion gas tube parts 7.

Therefore, there is no need to carry out screw tightening by the downside from lower board unit 11, valve cell 6 is fixed in the external box of microvave 1, the installation exercise of valve cell 6 becomes easily like this, thereby improves packaging efficiency.

In addition, in order valve cell 6 to be fixed in the external box of microvave 1 really, must under jut 65 be sticked in the state of engaging pawl 13, valve cell 6 be stopped operating.At this, combustion gas tube parts 7 is that the casting spare by metals such as aluminium constitutes.Thus, the rigidity of combustion gas tube parts 7 is improved, and ends on valve cell 6 by with screw combustion gas tube parts 7 being blocked, and makes valve cell 6 stop operating really.

In addition, also can constitute combustion gas tube parts 7 by simple tubing.Yet, will be difficult to guarantee to make valve cell 6 rigidity of degree that stops operating securely with tubing.Therefore, stop operating, externally in the casing 1 carriage that valve cell is used is set, end on this carriage with the part card of screw with valve cell 6 in order to make valve cell 6 securely.Consequently, when number of spare parts increased, also increased man-hour thereupon, so that cost increases.Therefore, as described in present embodiment, still constitute combustion gas tube parts 7, and valve cell 6 cards are ended thereon, help relatively realizing that cost reduces with screw by the metal forming part.

In addition, in when maintenance, with combustion gas tube parts 7 and manifold 8 after valve cell 6 and burning basket 2 are taken off, if observe the valve cell 6 that moves in the direction of the clock from the top, jut 65 is broken away from from engaging pawl 13, take off valve cell 6.So, can under attachment 5 be installed in state on the lower board unit 11, easily valve cell 6 be taken off, thereby improve maintenance.

Below, describe about manifold 8.Manifold 8 as shown in Figures 3 and 4, so that formed opening 22 on the bottom of the preceding board 21 of burning basket 2 is carried out the mode of shutoff and is installed on the burning basket 2.The gas-flow inlet 4a of each burner 4 in the burning basket 2 is positioned at the inboard of opening 22.And, in the rear surface of manifold 8, as shown in Figure 5, be provided with and the corresponding a plurality of gas nozzles 81 of a plurality of burners 4 of basket in 2 that burn, make combustion gas from each gas nozzle 81 towards the gas-flow inlet 4a of each burner 4 ejection.In addition, burner 4 is that the burner by the bias combustion formula that is provided with a pair of up and down gas-flow inlet 4a constitutes, and gas nozzle 81 is directed to each burner 4 and also is provided with a pair of up and down.

Extend downwards for the lower edge of the preceding board 21 of burning basket 2 bottom of manifold 8.And, will be on formed upper end card on the horizontal length direction of combustion gas tube parts 7 ends rear surface, bottom at manifold 8 with screw.A plurality of magnetic valves 72 of the burner quantity that is used to change burner 4 are installed on the upper end of combustion gas tube parts 7.In addition, on manifold 8, also be formed with the path groove 83 that covers by cover plate 82, in order to will guide gas nozzle 81 respectively by the combustion gas of each magnetic valve 72 to specified quantity.

In addition, the bottom in burning basket 2 is provided with: the air supply chamber 2a that separates with the configuration section of burner 4 with distribution grid 20 is supplied to this air supply chamber 2a from the air that omits illustrated combustion blower.On distribution grid 20, be formed with the rear surface of manifold 8 with exist spaced mode relative to the rising portions 20a of front side, on this rising portions 20a, be formed with the plunging hole of the gas-flow inlet 4a that is embedded in each burner 4.And, make the part of air supply in the air supply chamber 2a supply with the gas-flow inlet 4a of each burner 4 with the gap between the rising portions 20a as primary air via the rear surface of manifold 8, the air that makes remainder via formed a plurality of distributions holes (not shown) on distribution grid 20 as the configuration portion of auxiliary air supplied burner 4.

At this, make the opening of the preceding board 21 of burning basket 2 form the position and be offset to the rear with respect to the part of the preceding board 21 of the top of this position.In view of the above, the upper limb in opening formation position is formed with the cascaded surface 23 of fore-and-aft direction, and this cascaded surface 23 is formed into the upper limb of the rising portions 20a of distribution grid 20.In addition, the sidepiece that forms the both lateral sides of position at opening respectively is formed with 1

screw hole

24,2 screw holes 24 about the lower edge of opening formation position is formed with.In addition, on manifold 8, be formed with 4 installing holes 84 corresponding to these screw holes 24.And, along the periphery of the rear surface of manifold 8 and contact under the state of the seal member that constitutes by liner 9 of picture frame shape, by the slotting screw 85 that leads in each installing hole 84, and manifold 8 cards are ended both lateral sides portion and the lower edge that forms the position at opening.

Make the 9a of top portion of seal member 9 along the upper limb of manifold 8 and contact with it.And, make the upper limb of manifold 8 be connected to the cascaded surface 23 that opening forms the upper limb of position from the below, through the top of seal member 9 9a of.In view of the above, can guarantee that opening forms the manifold 8 at rising wood place of position and the sealing between the preceding board 21.Like this, the upper limb that can not be used in manifold 8 forms overlapping the prolonging in front that opening with preceding board 21 forms the upper section of position and portion, thereby can be so that manifold 8 miniaturizations realize the reduction of cost.

As shown in Figure 5, the both lateral sides portion in the rear surface of manifold 8 respectively is formed with 1 the 1st projection 86, is formed with pair of right and left the

2nd projection

87,87 at the upper limb of manifold 8.In addition, respectively be formed with 1 the 1st connecting hole 25 in the both lateral sides portion that the opening of preceding board 21 forms the position, and on opening forms the cascaded surface 23 of upper limb of position, be formed with pair of right and left the 2nd connecting

hole

26,26 simultaneously for 87 engagings of the 2nd projection for 86 engagings of the 1st projection.And by engaging of the 1st projection 86 and the 1st connecting hole 25, manifold 8 is remained on can be on the above-below direction position of the 9a of top portion of compression seal parts 9 between the upper limb of manifold 8 and the cascaded surface 23.

And for the 1st projection 86 is easily inserted in the 1st connecting hole 25, as shown in Figure 6, the front end of the 1st projection 86 is rounded, and the 1st connecting hole 25 is formed by the plunging hole that the bight has fillet.In addition, on seal member 9, be formed with: hole 91 corresponding and the

hole

92,93 corresponding with each projection of the 1st and the 2nd 86,87 with the installing hole 84 of manifold 8.

When manifold 8 is installed, at first, make manifold 8 be the hypsokinesis posture, and make each the 2nd projection 87 be sticked in each the 2nd connecting hole 26, then, manifold 8 is pressed into the rear towards the opening formation position of preceding board 21.In view of the above, can be by being the leverage of fulcrum with the 2nd projection 87 that is sticked in the 2nd connecting hole 26, and with stronger power the 1st projection 86 is pressed in the 1st connecting hole 25.At this moment, be pressed into the component towards the top of the reaction force in the 1st connecting hole 25 by the 1st projection 86, and push manifold 8 to top, between the upper limb and cascaded surface 23 of manifold 8, the 9a of top portion of seal member 9 is compressed, thereby has guaranteed the upper limb of manifold 8 and the sealing between the cascaded surface 23.At last, form the both lateral sides portion and the lower edge of position with the opening of screw board 21 before the position of each installing hole 84 is limited to manifold 8.

At this, if do not have the 1st projection 86 and the 1st connecting hole 25, and for the 9a of top portion of compression seal parts 9 between the upper limb of manifold 8 and cascaded surface 23, the operator will not be able to elect under the state of manifold 8 in the compression reaction force of the 9a of top portion of opposing seal member 9, the screw card that carries out manifold 8 ends, thus the operation comparison difficulty that becomes.To this, in the present embodiment, by engaging of the 1st projection 86 and the 1st connecting hole 25, manifold 8 is remained on can be on the above-below direction position of the 9a of top portion of compression seal parts 9 between the upper limb of manifold 8 and the cascaded surface 23, therefore, when the screw card of manifold 8 ends, there is no need to lift manifold 8 with hand push, easy thereby the operation that makes the screw card end becomes.

In addition, in the present embodiment,,, can prevent that also the upper limb of manifold 8 from coming off from cascaded surface 23 even before without screw the upper edge portion of manifold 8 being limited on the board 21 by engaging of the 2nd projection 87 and the 2nd connecting hole 26.Therefore, can reduce the quantity that screw card stop bit is put, can cut down the man-hour of the assembling operation of manifold 8 again, thereby realize the reduction of cost.In addition, as mentioned above, by being the leverage of fulcrum with the 2nd projection 87 that is sticked in the 2nd connecting hole 26, can between the upper limb of manifold 8 and cascaded surface 23, compress simultaneously by the 9a of top portion to seal member 9, and the 1st projection 86 easily is pressed in the 1st connecting hole 25, thereby make the assembling operation of manifold 8 become easier.

More than, though be about the present invention being applicable to the embodiment on the hot water supply device is illustrated,, the present invention equally also can be useful on the burner beyond the hot water supply device.

Claims

1. burner, it has: within it portion with a plurality of with fore-and-aft direction as the more rectangular always burner of configuration be arranged side by side in the horizontal the burning basket and to be installed in the manifold on the burning basket to carrying out the mode of shutoff at formed opening on the preceding board of burning basket, make combustion gas spray from gas-flow inlet at a plurality of burners of a plurality of gas nozzles set on the manifold in the burning basket; It is characterized in that,

The opening of the preceding board by making burning basket forms the position and is offset to the rear with respect to the part of the preceding board of the top of this position, and be formed with the cascaded surface of fore-and-aft direction, and make the upper limb of manifold be connected to this cascaded surface through seal member at the upper limb of opening formation position.

2. burner according to claim 1 is characterized in that,

Both lateral sides portion in the rear surface of described manifold, be formed with the 1st projection that the 1st connecting hole that forms with the both lateral sides portion that offers the position at the described opening of the preceding board of described burning basket engages, by engaging of the 1st projection and the 1st connecting hole, manifold is remained on can be on the above-below direction position of the described seal member of compression between the upper limb of manifold and the described cascaded surface.

3. burner according to claim 2 is characterized in that,

Described the 1st projected front ends is rounded, and described the 1st connecting hole is formed by the plunging hole that the bight has fillet.

4. according to any one described burner of claim 1 to 3, it is characterized in that,

At the upper limb of described manifold, be formed with the 2nd projection that engages with the 2nd connecting hole that forms at described cascaded surface.