CN105276581A - Double-nozzle for furnace combustor - Google Patents
Double-nozzle for furnace combustor Download PDFInfo
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- CN105276581A CN105276581A CN201510280810.1A CN201510280810A CN105276581A CN 105276581 A CN105276581 A CN 105276581A CN 201510280810 A CN201510280810 A CN 201510280810A CN 105276581 A CN105276581 A CN 105276581A
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- nozzle
- cylindrical shell
- nozzle body
- furnace combustor
- twin
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Abstract
A double-nozzle (4) for a furnace combustor is configured at the downstream end of a tubing component (3) which supplies fuel gas to the furnace combustor. The double-nozzle is provided with the components of a nozzle body (41) with a nozzle hole (41a) for spraying the fuel gas out, and a cylinder (42) which is arranged in front of the nozzle body in an axial direction for inflow of sprayed gas from the nozzle hole and furthermore has a diameter that is larger than that of the nozzle hole, wherein the double-nozzle has low cost and can sufficiently suck primary air into the cylinder. The tubing component (3) is provided with the components of a nozzle body (41), an arm part (43) which bestrides one part of the outer circumference of the nozzle body (41) and one part of the outer circumference of the cylinder (42), and a tubing body (42). The part outside the arm part (43) between the nozzle body (41) and the cylinder (42) forms an open space (44). The primary air is sucked into the cylinder (42) through the open space (44).
Description
Technical field
The present invention relates to a kind of furnace combustor twin-jet nozzle, this furnace combustor twin-jet nozzle is arranged on the downstream of the tube parts to furnace combustor supply fuel gas.
Background technology
This kind of twin-jet nozzle possesses: have for the nozzle bore of fuel gas ejection nozzle body and be positioned at nozzle body axial front and for the diameter flowed into from the ejection gas of the nozzle bore cylindrical shell larger than nozzle bore.If use twin-jet nozzle, then except the inflow entrance of the mixing tube from furnace combustor attracts primary air, primary air is also attracted to cylindrical shell along with fuel gas from nozzle bore ejection, can have additional supply of the primary air amount in furnace combustor.
But, existing twin-jet nozzle is that nozzle body and cylindrical shell are integrated, and at the base end part of nozzle body, twin-jet nozzle is screwed onto the downstream (such as, see patent document 1) of tube parts.Attachment between nozzle body and cylindrical shell, be formed with the suction hole from its outer peripheral face towards cylindrical shell, primary air is attracted in cylindrical shell by suction hole.In addition, multiple suction hole is set primary air fully can be attracted in cylindrical shell.
But the product needed of conventional example becomes the twin-jet nozzle of Split type structure with tube parts, and need one by one to form multiple suction hole by machining, have the unfavorable condition that cost increases like this.
At first technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 11-182819 publication
Summary of the invention
In view of the above problems, its problem is to provide a kind of furnace combustor twin-jet nozzle that primary air fully can be attracted to the low cost in cylindrical shell in the present invention.
In order to solve above-mentioned problem, the present invention relates to a kind of furnace combustor twin-jet nozzle, be arranged on the downstream of the tube parts to furnace combustor supply fuel gas, it is characterized in that, possess: the nozzle body with the nozzle bore for fuel gas ejection, with be positioned at nozzle body axial front and for the diameter flowed into from the ejection gas of the nozzle bore cylindrical shell larger than nozzle bore, tube parts is integrally formed with nozzle body, cross over the arm between a part for the periphery of nozzle body and a part for the periphery of cylindrical shell, and cylindrical shell, part beyond arm between nozzle body and cylindrical shell becomes open space, primary air is attracted in cylindrical shell by this space.
According to the present invention, twin-jet nozzle becomes to be integrated with tube parts, can reduce component number.In addition, because primary air fully can be attracted in cylindrical shell by the open space beyond the arm between nozzle body and cylindrical shell, so different from the situation that conventional example one by one forms multiple suction hole by machining like that, processing cost is also minimized, and is inconjunction with component number and reduces and can realize significantly cost reduction.
In addition, in the present invention, be preferably, the outer peripheral face of nozzle body is formed as towards the taper surface of axial front undergauge.Thus, primary air successfully flows to cylindrical shell side along taper surface, primary air efficiency is attracted to well in cylindrical shell.
But, because empathize in cylindrical shell from the sound that sends of gas flow of nozzle bore ejection, therefore produce sometimes and bring uncomfortable high frequency audio to user.In this case, be preferably, in the inner peripheral portion being positioned at direction two side position vertical with the length direction of arm of cylindrical shell, from the ora terminalis of nozzle body side starts, be formed with the lack part of specific length vertically.Accordingly, the physical length of cylindrical shell shortens, and the frequency of sonorant has been raised to the region exceeding people and can hear, would not bring uncomfortable sensation like this to user.
Accompanying drawing explanation
Fig. 1 is the sectional view of the tube parts of the twin-jet nozzle possessing embodiment of the present invention, valve cell and furnace combustor.
Fig. 2 is the tube parts of Fig. 1 and the stereogram of valve cell.
Fig. 3 represents the amplification view by III-III line cutting in Fig. 1.
Fig. 4 be other embodiment possess the tube parts of twin-jet nozzle, the stereogram of valve cell.
Symbol description
1 ... furnace combustor, 3 ... tube parts, 4 ... twin-jet nozzle, 41 ... nozzle body, 41a ... nozzle bore, 41b ... taper surface, 42 ... cylindrical shell, 42a ... lack part 43 ... arm, 44 ... open space.
Detailed description of the invention
With reference to Fig. 1,1 represents furnace combustor, and 2 represent the valve cell be located at on the gas supply road of furnace combustor 1.Furnace combustor 1 possesses: mixing tube 11, the burner body 12 be integrally formed with it in the downstream of mixing tube 11 and the burner cap 13 of placing on burner body 12.In addition, on furnace combustor 1, be attached to: abut with the bottom surface at the cooking-vessel omitting placing on range on illustrated stove and accessory top board and be used for detecting the flame detecting elements such as the illustrated thermocouple of omission of the cooking bottom temperature sensor 14 of its temperature, ignitor 15 and flame detection.
Valve cell 2 possesses: take fore-and-aft direction as the valve shell 21 be made up of aluminium diecasting of length direction, be accommodated in the electromagnetic valve 22 at valve shell 21 rear portion and be accommodated in the main valve 23 of valve shell 22 front portion.The inflow entrance 211 of lower surface and the flow export 212 of front upper surface after valve shell 21 is formed, if electromagnetic valve 22 and main valve 23 are opened, then fuel gas flows to flow export 212 from inflow entrance 211.
Main valve 23 is arranged on and inserts the action bars 24 in valve shell 21 from front.Action bars 24 is by the first time pressing operation and rearward pressed movement of the illustrated push button clinching of omission that is configured in stove and accessory front surface, valve opening is made it to electromagnetic valve 22 pressing, and make main valve 23 valve opening, for the first time after pressing operation, remove the pressing of electromagnetic valve 22, but main valve 23 is locked in the burning position of the regulation as valve opening state, by the second time pressing operation of clinching, remove the locking at burning position, reset to the fire extinguishing position (shown position) in the front that main valve 23 is closed.In addition, when furnace combustor 1 is flame-out, flame detecting element does not detect flame, electromagnetic valve 22 is closed, and prevents unstrpped gas from discharging.
The tube parts 3 of the bulk formed by aluminium diecasting is connected with at the upper surface of valve shell 21.The connector 31 be communicated with the flow export 212 of valve shell 21 is formed at the lower surface of tube parts 3.In addition, on tube parts 3, the downstream that is positioned at connector 31 is installed and when the detected temperatures of cooking bottom temperature sensor 14 rises to set upper limit temperature pent magnetic valve 32.In addition, on tube parts 3, be formed with the gas flow path 33 and the throttle orifice 34 arranged side by side with the magnetic valve 32 be communicated with gas flow path 33 by connector 31 that extend upward in the downstream of magnetic valve 32, when magnetic valve 32 is closed, a small amount of fuel gas is supplied to furnace combustor 1 by throttle orifice 34.
In addition, in the upper end of tube parts 3, the intensity of a fire control valve 35 be arranged on gas flow path 33 is installed.Intensity of a fire control valve 35 is retreated with linking in the intensity of a fire adjusting knob 351 highlighted at stove and accessory front surface, regulates gas flow.Intensity of a fire adjusting knob 351 is installed in axle as shown in Figure 2 and is supported on the swing frame 352 of the upper surface of tube parts 3.In addition, intensity of a fire control valve 35 is provided with the operative pin 353 extended upward, this operative pin 353 is engaged with following cam hole 352a by following elongated hole 354a, namely, elongated hole 354a be formed in be fixed on tube parts 3 guided plate 354 on and be length direction with fore-and-aft direction, cam hole 352a to be formed on swing frame 352 and towards lateral inclination for fore-and-aft direction.Thus, by intensity of a fire adjusting knob 351 to transverse shifting, make swing frame 352 teeter, like this under the guiding of cam hole 352a, operative pin 353 moves along elongated hole 354a at fore-and-aft direction, and intensity of a fire control valve 35 is retreated and adjusting gas flow at fore-and-aft direction.
In addition, in the upper rear as downstream of tube parts 3, the inflow entrance 111 being provided with the upstream extremity of the mixing tube 11 to furnace combustor 1 sprays the twin-jet nozzle 4 of the embodiment of the present invention of fuel gas.Twin-jet nozzle 4 possesses: have for the nozzle bore 41a of fuel gas ejection nozzle body 41 and be positioned at nozzle body 41 axial front (rear) and for the diameter flowed into from the ejection gas of the nozzle bore 41a cylindrical shell 42 larger than nozzle bore 41.Cylindrical shell 42 is entrenched in the medium pore 112a of air door 112, and wherein, air door 112 is installed on the inflow entrance 111 of mixing tube 11.In addition, be formed at air door 112 place and be positioned at medium pore 112a ambient air hole 112b.And except attracting except primary air from airport 112b, primary air is also attracted to in cylindrical shell 42 along with fuel gas sprays from nozzle bore 41a, can have additional supply of the primary air amount in furnace combustor 1.
Herein, in the present embodiment, tube parts 3 is integrally formed with nozzle body 41, cross over a part in the periphery of nozzle body 41 and as a part for the periphery of cylindrical shell 42 top and the bottom between the arm 43,43 of a pair up and down and cylindrical shell 42.In addition, the part beyond the arm 43 between nozzle body 41 and cylindrical shell 42 is open space 44, and primary air is attracted in cylindrical shell 42 by this open space 44.
Thus, twin-jet nozzle 4 is integrated with tube parts 3 one-tenth, with install on tube parts split with it twin-jet nozzle above-mentioned conventional example product compared with, can component number be reduced.In addition, because primary air fully can be attracted in cylindrical shell 42 by the open space 44 beyond the arm 43 between nozzle body 41 and cylindrical shell 42, so different by being machined in situation twin-jet nozzle one by one being formed multiple suction hole like that from conventional example, processing cost is also minimized, and is inconjunction with component number and reduces and can realize significantly cost reduction.
In addition, in the present embodiment, as shown in Figure 3, the outer peripheral face of nozzle body 41 is formed as towards the taper surface 41b of axial front (rear) undergauge.Thus, primary air successfully flows to cylindrical shell 42 side along the taper surface 41b in Fig. 3 represented by arrow a, primary air can be attracted in cylindrical shell 42 efficiently.
But, different according to used gas families, the sound of the CF corresponding with combustion gas spouting velocity that the gas flow sprayed from nozzle bore 41a sends can be empathized (being vibrated the sympathetic response caused by the gas column in cylindrical shell 42) in cylindrical shell 42, produces so sometimes and brings uncomfortable high frequency audio to user.Therefore, in the embodiment shown in Fig. 4, in the inner peripheral portion being positioned at direction two side position vertical with the length direction of arm 43 of cylindrical shell 42, from the ora terminalis of nozzle body 41 side starts, be formed with the lack part 42a of specific length vertically.Accordingly, the physical length of cylindrical shell 42 shortens, and the frequency of sonorant has been raised to the region exceeding people and can hear, would not bring uncomfortable sensation like this to user.
In addition, also can consider not form lack part 42a and the length shortening cylindrical shell 42.But once not change the position of cylindrical shell cardinal extremity (one end of nozzle body 41 side) and shorten cylindrical shell 42, then air door 112 just there will be deviation relative to the position relationship of barrel front end.In addition, when shortening cylindrical shell 42 in the position not changing barrel front end, because cylindrical shell cardinal extremity is close to air door 112, the front end of arm 43 will interfere with air door 112, therefore, can not fully shorten cylindrical shell 42.Like this, also just as mentioned above, be preferably, in the inner peripheral portion being positioned at direction two side position vertical with the length direction of arm 43 of cylindrical shell 42, be formed with lack part 42a.
Above, with reference to the accompanying drawings of embodiments of the present invention, but the present invention is not limited thereto.Such as, in the above-described embodiment, arm 43 is arranged to upper and lower a pair, but also can omits the arm 43 of next side.In addition, in above-mentioned embodiment, tube parts 3 is provided with magnetic valve 32 and flow control valve 35, but tube parts also can not install these valves.
Claims (3)
1. a furnace combustor twin-jet nozzle, be arranged on the downstream of the tube parts to furnace combustor supply fuel gas, it is characterized in that, possess: have for the nozzle bore of fuel gas ejection nozzle body and be positioned at nozzle body axial front and for the diameter flowed into from the ejection gas of the nozzle bore cylindrical shell larger than nozzle bore
Tube parts is integrally formed with nozzle body, crosses over arm between a part for the periphery of nozzle body and a part for the periphery of cylindrical shell and cylindrical shell,
Part beyond arm between nozzle body and cylindrical shell becomes open space, and primary air is attracted in cylindrical shell by this open space.
2. furnace combustor twin-jet nozzle according to claim 1, is characterized in that, the outer peripheral face of described nozzle body is formed as towards the taper surface of axial front undergauge.
3. furnace combustor twin-jet nozzle according to claim 1 and 2, it is characterized in that, in the inner peripheral portion being positioned at direction two side position vertical with the length direction of described arm of described cylindrical shell, from the ora terminalis of described nozzle body side starts, be formed with the lack part of specific length vertically.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014125290 | 2014-06-18 | ||
| JP2014-125290 | 2014-06-18 | ||
| JP2015-100897 | 2015-05-18 | ||
| JP2015100897A JP6563687B2 (en) | 2014-06-18 | 2015-05-18 | Double nozzle for the stove burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105276581A true CN105276581A (en) | 2016-01-27 |
| CN105276581B CN105276581B (en) | 2018-12-21 |
Family
ID=55146066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510280810.1A Active CN105276581B (en) | 2014-06-18 | 2015-05-28 | Furnace combustor twin-jet nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276581B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111492179A (en) * | 2017-12-21 | 2020-08-04 | Bsh家用电器有限公司 | Injector device for a gas burner of a household appliance, gas burner and household appliance |
| CN111664448A (en) * | 2019-03-08 | 2020-09-15 | 三菱重工业株式会社 | Burner and burner array |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231761Y (en) * | 1995-07-26 | 1996-07-24 | 大庆纽斯达采油工具公司 | High-speed gas burner |
| CN101382285A (en) * | 2007-09-05 | 2009-03-11 | 林内株式会社 | Burner for stove |
| JP2011052947A (en) * | 2009-09-04 | 2011-03-17 | Rinnai Corp | Burner for cooking stove |
| CN103162294A (en) * | 2011-12-08 | 2013-06-19 | 林内株式会社 | Gas nozzle of furnace combustor |
-
2015
- 2015-05-28 CN CN201510280810.1A patent/CN105276581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231761Y (en) * | 1995-07-26 | 1996-07-24 | 大庆纽斯达采油工具公司 | High-speed gas burner |
| CN101382285A (en) * | 2007-09-05 | 2009-03-11 | 林内株式会社 | Burner for stove |
| JP2011052947A (en) * | 2009-09-04 | 2011-03-17 | Rinnai Corp | Burner for cooking stove |
| CN103162294A (en) * | 2011-12-08 | 2013-06-19 | 林内株式会社 | Gas nozzle of furnace combustor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111492179A (en) * | 2017-12-21 | 2020-08-04 | Bsh家用电器有限公司 | Injector device for a gas burner of a household appliance, gas burner and household appliance |
| CN111492179B (en) * | 2017-12-21 | 2023-08-29 | Bsh家用电器有限公司 | Injector device for a gas burner of a household appliance, gas burner and household appliance |
| CN111664448A (en) * | 2019-03-08 | 2020-09-15 | 三菱重工业株式会社 | Burner and burner array |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105276581B (en) | 2018-12-21 |
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