CN112082159A - Gas distributing rod for gas water heater and gas water heater with gas distributing rod - Google Patents
Gas distributing rod for gas water heater and gas water heater with gas distributing rod Download PDFInfo
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- CN112082159A CN112082159A CN201910516575.1A CN201910516575A CN112082159A CN 112082159 A CN112082159 A CN 112082159A CN 201910516575 A CN201910516575 A CN 201910516575A CN 112082159 A CN112082159 A CN 112082159A
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- branch pipe
- injection port
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- water heater
- injection
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000002347 injection Methods 0.000 claims abstract description 242
- 239000007924 injection Substances 0.000 claims abstract description 242
- 239000013505 freshwater Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 31
- 238000000034 method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 136
- 238000005192 partition Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000003563 vegetarian diet Nutrition 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a gas distributing rod for a gas water heater and the gas water heater with the same, wherein the gas distributing rod comprises: the method comprises the following steps: the first branch pipe is internally provided with a first injection port which is suitable for being opposite to a fresh injection port of the gas water heater; the second branch pipe is internally provided with a second jet orifice which is suitable for being opposite to the concentrated injection orifice of the gas water heater; an additional air channel communicated to the second branch jet orifice is formed between the first branch pipe and the second branch pipe, and the gas water heater is suitable for supplying air to the periphery of the second jet orifice through the additional air channel. According to the gas distributing rod for the gas water heater, the air supply of the second injection port is not influenced by the first injection port, so that the combustion condition of a burner in the gas water heater is improved, and the exhaust emission and the combustion noise are reduced.
Description
Technical Field
The invention relates to the technical field of gas water heaters, in particular to a gas distributing rod for a gas water heater and a gas water heater with the gas distributing rod.
Background
With the improvement of living standard and the gradual improvement of gas supply facilities, household rapid gas water heaters are gradually popularized, and the comfortable and safe bathing environment provided for consumers is more and more emphasized by the industry. However, in the face of increasingly stringent emissions requirements, the development of new combustion systems is a primary task for those skilled in the art.
Disclosure of Invention
The present invention is based on the finding by the inventors of the present application of the following facts and problems:
the problems of the common thick and thin gas separating rod of the gas water heater (balance machine type) in the related technology are as follows: the primary air channel entering the combustor is fixed, and the adjustability of the air quantity and the air direction is poor, so that the problems of abnormal combustion and noise exist.
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a gas distributing rod for a gas water heater, which can improve the problems of abnormal combustion and noise.
The invention also provides a gas water heater with the gas distributing rod.
According to a first aspect of the invention, a gas distributor bar for a gas water heater comprises: the gas burner comprises a body, a gas inlet and a gas outlet, wherein a gas main channel is arranged in the body; the first branch pipe is internally provided with a first branch passage communicated with the main gas passage, the first branch pipe is provided with a first jet orifice communicated with the first branch passage, and the first jet orifice is suitable for being opposite to a fresh water injection orifice of the gas water heater; the second branch pipe is internally provided with a second branch channel communicated with the main gas channel, the second branch pipe is provided with a second jet orifice communicated with the second branch channel, and the second jet orifice is suitable for being opposite to a concentrated jet orifice of the gas water heater; an additional air passage communicated to the second branch injection port is formed between the first branch pipe and the second branch pipe, and the gas water heater is suitable for supplying air to the periphery of the second injection port through the additional air passage.
According to the gas distributing rod for the gas water heater, the additional air channel for supplying air to the second injection port is formed between the first branch pipe and the second branch pipe, so that the air supply of the second injection port is not influenced by the first injection port, the combustion condition of a burner in the gas water heater is improved, and the exhaust gas emission and the combustion noise are reduced.
In some embodiments, the first branch pipe and the second branch pipe each extend in a horizontal direction, and the first branch pipe and the second branch pipe are disposed apart in an up-down direction to define the additional air passage therebetween.
In some embodiments, the gas distribution rod further comprises: one end of the first branch pipe is connected with one end of the second branch pipe through the first connecting pipe and communicated with the first connecting pipe; the other end of the first branch pipe is connected with the other end of the second branch pipe through the second connecting pipe and communicated with the second connecting pipe, and the first branch pipe, the second branch pipe, the first connecting pipe and the second connecting pipe are matched to limit the additional air channel.
In some embodiments, at least a portion of the body extends parallel to the first branch tube, the gas-distributing rod further comprising: the branch pipes are arranged at intervals along the length direction of the first branch pipe and connected between the body and the first branch pipe.
In some embodiments, the first injection port comprises a plurality of first injection ports, and the plurality of first injection ports are arranged at intervals along the length direction of the first branch pipe; the second injection port comprises a plurality of second injection ports which are arranged at intervals along the length direction of the second branch pipe.
In some embodiments, the central axis of the first injection port and the central axis of the second injection port are perpendicular to the plane where the central axis of the first branch pipe and the central axis of the second branch pipe are located, and the first injection port and the second injection port are located on the same side of the first branch pipe and the second branch pipe.
In some embodiments, the gas distribution rod further comprises: the first nozzle is arranged at the first jet orifice, the second nozzle is arranged at the second jet orifice, and the outlet sectional area of the first nozzle is larger than that of the second nozzle.
A gas water heater according to a second aspect of the present invention comprises: the burner frame body is provided with an injection space, a thick injection port and a light injection port which are communicated with the injection space; according to the gas distributing rod for the gas water heater in the first aspect of the invention, the first branch pipe and the second branch pipe are arranged in the ejection space, the first injection port is opposite to the light injection port, and the second injection port is opposite to the thick injection port, wherein a main air channel is defined between the side wall of the ejection space where the light injection port and the thick injection port are located and the first branch pipe and the second branch pipe, and the gas water heater is suitable for supplying air to the first injection port through the main air channel.
According to the gas water heater, the additional air channel is arranged to supply air to the second injection port, so that the air supply quantity and the air flow direction to the second injection port can be changed, the mixing effect of the burner on the air and the gas is enhanced, the combustion condition is improved, the exhaust emission and the combustion noise are reduced, the air supply mode that in the related technology, primary air supply needs to be supplied to the first injection port corresponding to the light injection port first and then to the second injection port corresponding to the thick injection port is changed, the air supply of the second injection port is not influenced by the first injection port, and convenience is provided for performance adjustment of the gas water heater.
In some embodiments, the lower part of the injection space is open, the thick injection port and the light injection port are arranged on the side wall of one side of the injection space at intervals in the vertical direction, the thick injection port is located above the light injection port, and the first branch pipe is spaced from the side wall of the other side of the injection space opposite to the light injection port.
In some embodiments, a first flange extending along the circumferential direction of the light injection port is formed on the circumferential edge of the light injection port, the first flange extends along the axial direction of the light injection port away from the injection space, and the first flange is suitable for being inserted into an inlet of a light passage of a burner arranged in the burner frame; the periphery of the thick injection port is provided with a second flanging extending along the periphery of the thick injection port, the second flanging axially deviates from the injection space along the thick injection port, and the second flanging is suitable for being inserted into an inlet of a thick passage of the combustor in the combustor frame.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a gas water heater according to a first embodiment of the invention;
FIG. 2 is a cross-sectional view of a gas water heater according to a second embodiment of the present invention, wherein an adjusting plate is disposed on the gas distributing rod and blocks the additional air channel;
FIG. 3 is a schematic view of the gas water heater shown in FIG. 2;
FIG. 4 is a cross-sectional view of the gas water heater shown in FIG. 2 with the adjustment plate opening the additional air passage;
FIG. 5 is a schematic view of the gas water heater shown in FIG. 4;
FIG. 6 is a sectional view of a gas water heater according to a third embodiment of the present invention, wherein a partition plate is provided on the gas distributing rod;
FIG. 7 is a schematic view of the gas water heater shown in FIG. 6.
Reference numerals:
the gas water heater 100, the main air passage 101,
a burner frame body 1, an injection space 11, a light injection port 12, a thick injection port 13, a first flanging 14, a second flanging 15,
the burner (2) is arranged in the combustion chamber,
the air distribution bar 3, the additional air passage 301, the first additional air passage 3011, the second additional air passage 3012,
the body 31 is provided with a plurality of grooves,
the first branch pipe 32, the first branch passage 321, the first injection port 322,
the second branch pipe 33, the second branch passage 331, the second injection port 332,
a first connection pipe 341, a second connection pipe 342, a branch pipe 35, a first nozzle 361, a second nozzle 362,
an adjusting plate 37 and a partition plate 38.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
First, referring to fig. 1 to 7, a gas water heater 100 according to an embodiment of the second aspect of the present invention will be briefly described, where the gas water heater 100 is a balanced gas water heater, and the gas water heater 100 includes: a burner frame 1 and a gas distribution rod 3 for a gas water heater according to an embodiment of the first aspect of the invention.
As shown in fig. 1 and fig. 2, the burner frame 1 has an injection space 11, and a thick injection port 13 and a thin injection port 12 which are communicated with the injection space 11; the burner 2 of the gas water heater 100 is installed in the burner frame 1, and the rich passage and the lean passage in the burner 2 are respectively connected with the rich injection port 13 and the lean injection port 12 of the burner frame 1, so that the gas and the air are introduced into the burner 2 to be mixed.
The gas distributing rod 3 is used for conveying and distributing gas, wherein, it should be noted that, when the gas in the gas distributing rod 3 is sprayed through the spray opening, the gas in the gas distributing rod 3 has a certain pressure, and the gas can be sprayed out at a certain speed when being sprayed out, the sprayed gas can entrain a certain amount of surrounding air to enter the combustor, and the gas-air mixture is further mixed in the combustor.
A gas distribution stem 3 for a gas water heater 100 according to an embodiment of the first aspect of the invention is described below with reference to fig. 1-7.
As shown in fig. 1, the gas distributing rod 3 for a gas water heater 100 according to the embodiment of the first aspect of the present invention comprises: the burner comprises a body 31, a first branch pipe 32 and a second branch pipe 33, wherein the first branch pipe 32 and the second branch pipe 33 are arranged in an injection space 11 of the burner frame 1.
Specifically, the main body 31 has a main gas passage therein; a first branch passage 321 communicated with the gas main passage is formed in the first branch pipe 32, a first injection port 322 communicated with the first branch passage 321 is arranged on the first branch pipe 32, and the first injection port 322 is suitable for being opposite to the light injection port 12 of the gas water heater 100; a second branch passage 331 communicated with the gas main passage is formed in the second branch pipe 33, a second injection port 332 communicated with the second branch passage 331 is arranged on the second branch pipe 33, and the second injection port 332 is suitable for being opposite to the rich injection port 13 of the gas water heater 100.
Wherein, a main air channel 101 is defined between the side wall of the injection space 11 where the light injection port 12 and the thick injection port 13 are located and the first branch pipe 32 and the second branch pipe 33, and the gas water heater 100 is suitable for supplying air to the first injection port 322 through the main air channel 101. When the first injection ports 322 inject the fuel gas, the air supplied through the main air passage 101 can be sucked into the thin injection port 12 and into the thin passage of the burner 2.
Meanwhile, an additional air passage 301 communicated to the second injection port 332 is formed between the first branch pipe 32 and the second branch pipe 33, and the gas water heater 100 is adapted to supply air around the second injection port 332 through the additional air passage 301, so that when the second injection port 332 injects the gas, the air supplied through the additional air passage 301 can be caught into the rich port 13 and enter the rich passage of the burner 2.
According to the gas distributing rod 3 for the gas water heater 100 of the embodiment of the invention, the additional air channel 301 for supplying air to the second injection port 332 is formed between the first branch pipe 32 and the second branch pipe 33, so that the air supply of the second injection port 332 is not influenced by the first injection port 322, the combustion condition of the burner 2 in the gas water heater 100 is improved, and the exhaust gas emission and the combustion noise are reduced.
Compared with the prior art that the first injection port and the second injection port are arranged on the peripheral wall of the same gas pipeline, when the gas water heater supplies air to the first injection port and the second injection port, the air flow of the air can only reach the second injection port after passing through the first injection port, so that the air supply of the second injection port is always influenced by the first injection port. According to the gas water heater 100 provided by the embodiment of the invention, the additional air channel 301 is arranged to supply air to the second injection port 332, so that the air supply quantity and the air flow direction to the second injection port 332 can be changed, the mixing effect of the burner 2 on air and gas is enhanced, the combustion condition is improved, the exhaust gas emission and the combustion noise are reduced, the air supply mode that in the related art, primary air supply needs to be supplied to the first injection port 322 corresponding to the light injection port 12 before the second injection port 332 corresponding to the thick injection port 13 is changed, the air supply of the second injection port 332 is not influenced by the first injection port 322, and convenience is provided for the performance regulation of the gas water heater 100.
In short, according to the gas water heater 100 of the embodiment of the present invention, by providing the additional air passage 301 to directly supply air to the second injection port 332, it is possible to improve combustion conditions and reduce exhaust gas emissions and combustion noise.
In an embodiment of the present invention, as shown in fig. 2, a lower portion of the injection space 11 is open, the thick injection port 13 and the thin injection port 12 are disposed on a side wall of one side of the injection space 11 (for example, a side wall of a rear side of the injection space 11 shown in fig. 2) at an interval in an up-down direction, the thick injection port 13 is located above the thin injection port 12, the first branch pipe 32 and the second branch pipe 33 extend into the injection space 11 from an open end of the injection space 11 (for example, a lower end of the injection space 11 of the vegetarian diet in fig. 2), and the first branch pipe 32 is spaced from a side wall (not shown) of the other side of the injection space 11 opposite to the thin injection port 12, or the other side of the injection space 11 opposite to the thin injection port 12 is open. Therefore, the air supplied from the gas water heater 100 can enter the additional air passage 301 through the gap between the first branch pipe 32 and the other side wall of the injection space 11, and further supply the air to the second injection port 332.
In some embodiments of the present invention, as shown in fig. 2, a first flange 14 extending along the circumferential direction of the light injection port 12 may be formed on the circumferential edge of the light injection port 12, the first flange 14 extends along the axial direction of the light injection port 12 away from the injection space 11, and the first flange 14 is adapted to be inserted into an inlet of a light passage of the combustor 2 disposed in the combustor frame 1; for example, the first flange 14 extends in a rearward direction as shown in fig. 2, and during assembly, the first flange 14 may be inserted into the fresh air duct inlet of the burner 2 to facilitate the introduction of gas and air into the fresh air duct.
Meanwhile, as shown in fig. 2, a second flanging 15 extending along the circumferential direction of the rich injection port 13 is formed on the circumferential edge of the rich injection port 13, the second flanging 15 extends along the axial direction of the rich injection port 13 away from the injection space 11, and the second flanging 15 is suitable for being inserted into an inlet of a rich passage of the combustor 2 arranged in the combustor frame 1. For example, the second flange 15 may extend in a rearward direction as shown in fig. 2, and during assembly, the second flange 15 may be inserted into the rich passage inlet of the burner 2 to facilitate the introduction of gas and air into the rich passage.
The specific structure of the gas distributing lever 3 according to the specific embodiment of the present invention will be described below with reference to the accompanying drawings.
In some embodiments of the present invention, as shown in fig. 1, the first branch duct 32 and the second branch duct 33 each extend along a first direction, and the first branch duct 32 and the second branch duct 33 are spaced apart along a second direction perpendicular to the first direction to form an additional air passage 301 extending along a third direction between the first branch duct 32 and the second branch duct 33, wherein the third direction is perpendicular to the first direction and the second direction.
Specifically, the first branch duct 32 and the second branch duct 33 each extend in a horizontal direction (e.g., a left-right direction as viewed in fig. 1), and the first branch duct 32 is disposed apart from the second branch duct 33 in an up-down direction, and defines an additional air passage 301 between the first branch duct 32 and the second branch duct 33, wherein an air flow direction in the additional air passage 301 is a front-to-rear direction as viewed in fig. 2.
In some examples, as shown in fig. 1, the gas distribution rod 3 may further include: a first connection pipe 341 and a second connection pipe 342, one end of the first branched pipe 32 (e.g., the left end of the first branched pipe 32 shown in fig. 1) and one end of the second branched pipe 33 (e.g., the left end of the second branched pipe 33 shown in fig. 1) being connected and communicated through the first connection pipe 341; the other end of the first branch pipe 32 (e.g., the right end of the first branch pipe 32 shown in fig. 1) is connected and communicated with the other end of the second branch pipe 33 (e.g., the right end of the second branch pipe 33 shown in fig. 1) by a second connection pipe 342, wherein the first branch pipe 32, the second branch pipe 33, the first connection pipe 341, and the second connection pipe 342 cooperate to define the additional air passage 301. Thereby, the additional air passage 301 can be formed between the first branch pipe 32 and the second branch pipe 33, and the structure is simple and reasonable.
In some examples, as shown in fig. 1, at least part of the body 31 extends parallel to the first branch pipe 32, and the gas distribution rod 3 may further include: a plurality of branch pipes 35, the plurality of branch pipes 35 being disposed at intervals along a length direction (e.g., a left-right direction as viewed in fig. 1) of the first branch pipe 32 and connected between the body 31 and the first branch pipe 32. Specifically, as shown in fig. 1, the body 31 of the gas distributing rod 3 includes parallel pipes substantially parallel to the first branch pipe 32, the parallel pipes are disposed below the first branch pipe 32, the plurality of branch pipes 35 of the gas distributing rod 3 are arranged at intervals in the left-right direction, the lower end of each branch pipe 35 is connected and communicated with the parallel pipes, and the upper end of each branch pipe 35 is connected and communicated with the first branch pipe 32, so that the gas in the body 31 of the gas distributing rod 3 can be uniformly introduced into the first branch pipe 32 by arranging the plurality of branch pipes 35 in the length direction of the first branch pipe 32, the gas in the first branch pipe 32 is more uniformly distributed, the uniform gas supply to the first injection ports 322 at each position of the first branch pipe 32 is ensured, and the stability of the gas supply is ensured.
In some examples, as shown in fig. 1, the first injection port 322 includes a plurality of first injection ports 322, and the plurality of first injection ports 322 are arranged at intervals along a length direction (e.g., a left-right direction shown in fig. 1) of the first branch pipe 32; the second injection port 332 includes a plurality of second injection ports 332, and the plurality of second injection ports 332 are arranged at intervals in a length direction (e.g., a left-right direction shown in fig. 1) of the second branch pipe 33. The plurality of first injection ports 322 and the plurality of second injection ports 332 may correspond one to one. For example, one first injection port 322 and one second injection port 332 may constitute one injection port group, and the injection port group may correspond to one fire row unit of the combustor 2.
In some embodiments, as shown in fig. 2, the gas distribution rod 3 may further include: a first nozzle 361 and a second nozzle 362, the first nozzle 361 is disposed at the first jet 322, the second nozzle 362 is disposed at the second jet 332, and the outlet cross-sectional area of the first nozzle 361 is larger than the outlet cross-sectional area of the second nozzle 362. This embodiment can improve the gas from first jet-orifice 322 and second jet-orifice 332 spun speed through setting up first nozzle 361 and second nozzle 362, improves its injection ability, and the export sectional area through setting up first nozzle 361 is greater than the export sectional area of second nozzle 362 simultaneously, can guarantee that first jet-orifice 322 can draw and penetrate more air volume to guarantee combustion flame's stability, reduce exhaust emission.
Further, as shown in fig. 2, the central axis of the first injection port 322 is perpendicular to the plane where the central axis of the first branch pipe 32 and the central axis of the second branch pipe 33 are located, the central axis of the second injection port 332 is perpendicular to the plane where the central axis of the first branch pipe 32 and the central axis of the second branch pipe 33 are located, and the first injection port 322 and the second injection port 332 are located on the same side of the first branch pipe 32 and the second branch pipe 33.
As shown in fig. 2 in combination with fig. 1, the central axis of the first branch pipe 32 and the central axis of the second branch pipe 33 both extend in the horizontal left-right direction, the central axis of the first injection port 322 and the central axis of the second injection port 332 both extend in the horizontal front-back direction, and the first injection port 322 and the second injection port 332 are both located at the rear side of the first branch pipe 32 and the second branch pipe 33, so that the first injection port 322 and the second injection port 332 can be conveniently aligned with the light injection port 12 and the thick injection port 13, respectively, and the structure is compact and the layout is reasonable.
According to some embodiments of the present invention, as shown in fig. 2 to 5, the gas distribution rod 3 may further include: an adjusting plate 37, the adjusting plate 37 being disposed between the first branch pipe 32 and the second branch pipe 33, the adjusting plate 37 being used to adjust the opening degree of the cross section of the additional air passage 301 at the position where the adjusting plate 37 is located. Thus, by providing the adjustment plate 37, the amount of air supplied from the additional air passage 301 to the second injection ports 332 can be controlled to ensure stable combustion by the burner 2.
Specifically, when the gas water heater 100 is started, the opening degree of the flow cross section at the position can be reduced through the adjusting plate 37, the air quantity supplied to the second injection ports 332 is reduced, the injection quantity of the air by the second injection ports 332 is reduced, and reliable ignition and fire transfer are ensured. When the water heater works to normal load, the opening degree of the flow section of the additional air channel 301 at the position of the additional air channel can be increased through the adjusting plate 37, the injection amount of the second injection port 332 to air is increased, and stable combustion is ensured.
In one embodiment, as shown in fig. 2, the adjusting plate 37 may be provided at an inlet position of the additional air passage 301, thereby facilitating installation and control of the adjusting plate 37.
In some embodiments of the invention, referring to fig. 2, the adjustment plate 37 is rotatable about a fixable axis, e.g. the adjustment plate 37 is rotatably connected to the first branch pipe 32 and/or the second branch pipe 33. That is, the adjusting plate 37 can be rotatably connected to the first branch pipe 32, the adjusting plate 37 can also be rotatably connected to the second branch pipe 33, and the adjusting plate 37 can also be rotatably connected to both the first branch pipe 32 and the second branch pipe 33. Thus, the opening of the flow cross section at the position of the adjustment plate 37 can be adjusted by rotating the adjustment plate 37. Wherein, when the adjusting plate 37 is rotatably connected to both the first branch pipe 32 and the second branch pipe 33, the adjusting plate 37 may include a plurality of adjusting portions, one portion of the plurality of adjusting portions may be rotatably connected to the first branch pipe 32, and another portion of the plurality of adjusting portions may be rotatably connected to the second branch pipe 33. Of course, the present invention is not limited thereto, and a fixing bracket may be further provided, on which the adjusting plate 37 is rotatably provided.
Herein, it is understood that the adjusting plate 37 is rotatably connected to the first branch pipe 32 or the second branch pipe 33, which means that the adjusting plate 37 can be integrally rotatable with respect to the first branch pipe 32 or the second branch pipe 33, for example, the adjusting plate 37 is rotatably connected to the first branch pipe 32 or the second branch pipe 33 through a pivot shaft. The adjusting plate 37 is rotatably connected to the first branch pipe 32 or the second branch pipe 33, which may also mean that the adjusting plate 37 may be partially rotatable relative to the first branch pipe 32 or the second branch pipe 33, for example, the adjusting plate 37 itself is a flexible plate, one end of the adjusting plate 37 is fixedly connected to the first branch pipe 32 or the second branch pipe 33, and the other end of the adjusting plate 37 may rotate or bend relative to the fixed end thereof under the action of an external force.
In some embodiments, as shown in fig. 2, the adjusting plate 37 may be a cantilever plate, specifically, one end of the adjusting plate 37 (e.g., the upper end of the adjusting plate 37 shown in fig. 2) is connected to a side of the second branch pipe 33 facing away from the second injection port 332 (e.g., the front side in the second branch pipe shown in fig. 2), and the other end of the adjusting plate 37 (e.g., the lower end of the adjusting plate 37 shown in fig. 2) extends toward the first branch pipe 32. And the other end of the adjustment plate 37 extends obliquely away from the first branch pipe 32 in a direction toward the first branch pipe 32 (e.g., a top-down direction as viewed in fig. 2). For example, as shown in fig. 2, the upper end of the adjusting plate 37 is connected to the rear side of the outer peripheral wall in the second branch pipe 33, and the lower end of the adjusting plate 37 extends downward and forward. Further, at least a portion of the adjusting plate 37 may be formed as an arc-shaped plate, for example, the adjusting plate 37 may be formed as an arc-shaped plate protruding toward the first branch pipe 32.
Further, the other end of the adjusting plate 37 (e.g., the lower end of the adjusting plate 37 shown in fig. 2) extends beyond the central axis of the first branch pipe 32 in the direction toward the first branch pipe 32. Therefore, the adjusting plate 37 can be conveniently used for blocking the additional air channel 301 when being deformed.
In some embodiments of the present invention, as shown in fig. 2, the adjustment plate 37 may be a flexible plate.
The operation of the air distributing lever 3 provided with the flexible adjusting plate 37 at the inlet position of the additional air passage 301 will be described in detail as follows:
when the gas water heater 100 is started, referring to fig. 2 and fig. 3, primary air enters the thick injection port 13 and the thin injection port 12 through the main air passage 101 and the additional air passage 301 under the driving of the strong exhaust fan, and because the negative pressure in the combustion chamber cavity is larger than that under normal working conditions, the lower end of the adjusting plate 37 can be drawn close to the first branch pipe 32 under the action of high negative pressure, so that the flow area of part of the additional air passage 301 is blocked, the injection amount of the second injection port 332 to air is reduced, and reliable ignition and fire transfer are ensured.
When the gas water heater 100 works to normal load, as shown in fig. 4 and 5, the negative pressure in the combustion chamber cavity is lower than that during starting, the adjusting plate 37 is in the initial state slowly, the flow area of the additional air channel 301 is released, the injection amount of the second injection port 332 to the air is increased, and stable combustion is ensured.
According to some embodiments of the present invention, as shown in fig. 6 and 7, the gas distributing rod 3 for the gas water heater 100 may further include: and a partition plate 38, wherein the partition plate 38 is disposed between the first branch pipe 32 and the second branch pipe 33, a first additional air passage 3011 communicating with the first injection port 322 is formed between the partition plate 38 and the first branch pipe 32, and a second additional air passage 3012 communicating with the second injection port 332 is formed between the partition plate 38 and the second branch pipe 33. The present embodiment can distribute primary air to the first injection ports 322 and the second injection ports 332 in different proportions by providing the partition plate 38, so that reliable ignition and ignition of the combustor 2 can be ensured.
In some embodiments, referring to fig. 7, the partition plate 38 may be formed with a first clamping portion, and a second clamping portion adapted to be clamped with the first clamping portion is disposed between the first branch pipe 32 and the second branch pipe 33. From this, division board 38 and first minute pipe 32 and the joint of second minute pipe 33 can be realized to first joint portion and the joint of second joint portion, and the assembly is simple and convenient.
Further, one of the first clamping portion and the second clamping portion is formed as a clamping groove and the other is formed as a clamping protrusion, that is, the second clamping portion is formed as a clamping protrusion when the first clamping portion is formed as a clamping groove, and the second clamping portion is formed as a clamping groove when the first clamping portion is formed as a clamping protrusion. Therefore, the structure is simple and the assembly and disassembly are convenient.
In some examples, the second clamping portion may include a plurality of second clamping portions, the plurality of second clamping portions are arranged at intervals in a direction (for example, an up-down direction as described in fig. 1) in which the first branch pipe 32 faces the second branch pipe 33, and the first clamping portion is clamped with one of the second clamping portions. In this way, by engaging the first engaging portion with the second engaging portion at a different position, the partition plate 38 can be divided at different positions between the first branch pipe 32 and the second branch pipe 33, and primary air can be distributed to the first injection ports 322 and the second injection ports 332 at different ratios, thereby ensuring reliable ignition and flame propagation of the burner 2.
In some embodiments of the present invention, the divider plate 38 may be rotatably disposed about a fixed axis between the first and second branch pipes 32, 33. In this way, by rotating the partition plate 38, the partition plate 38 can be partitioned at different positions between the first branch pipe 32 and the second branch pipe 33, and distribution of primary air at different ratios to the first injection ports 322 and the second injection ports 332 is achieved, thereby ensuring reliable ignition and fire transfer of the combustor 2.
Further, the gas distributing rod 3 may further include: a drive member connected to the divider plate 38 for driving the divider plate 38 to rotate about a fixed axis. Thus, the position of the partition plate 38 can be automatically adjusted by the driving member, and automatic adjustment of distributing primary air of different proportions to the first injection ports 322 and the second injection ports 332 is achieved.
In some embodiments of the present invention, as shown in fig. 6, the first branch pipe 32 and the second branch pipe 33 both extend in the horizontal direction, and the first branch pipe 32 and the second branch pipe 33 are disposed apart in the up-down direction. The gas distributing rod 3 further comprises: a first connection pipe 341 and a second connection pipe 342, one end of the first branch pipe 32 and one end of the second branch pipe 33 being connected and communicated through the first connection pipe 341; and the other end of the first branch pipe 32 is connected and communicated with the other end of the second branch pipe 33 through a second connection pipe 342, wherein the first branch pipe 32, the partition plate 38, the first connection pipe 341 and the second connection pipe 342 cooperate to define a first additional air passage 3011, and the second branch pipe 33, the partition plate 38, the first connection pipe 341 and the second connection pipe 342 cooperate to define a second additional air passage 3012.
A gas water heater 100 according to three specific embodiments of the present invention will be described with reference to fig. 1-7.
In the first embodiment, the first step is,
referring to fig. 1, as shown in fig. 1, a gas water heater 100 includes a burner housing 1, a burner 2 provided in the burner housing 1, and a gas distributing rod 3.
Specifically, as shown in fig. 1, the burner frame 1 is fixed on a bottom shell of the water heater by screws, the burner frame 1 is used for mounting a thick-thin burner 2, a thick injection port 13 and a thin injection port 12 are arranged on the burner frame 1, and the thick injection port 13 and the thin injection port 12 are respectively connected with a thick channel inlet and a thin channel inlet of the thick-thin burner 2. The air distributing rod 3 is mounted on the burner housing 1 by screws, the air distributing rod 3 includes a first branch pipe 32, a second branch pipe 33, and an additional air passage 301 formed between the first branch pipe 32 and the second branch pipe 33, and a gap between the burner housing 1 and the first branch pipe 32 of the air distributing rod 3 constitutes a main air passage 101.
The first branch pipe 32 is provided with a first injection port 322, the first injection port 322 is provided with a first nozzle 361, the first nozzle 361 is opposite to the light injection port 12 on the burner frame 1, the second branch pipe 33 is provided with a second injection port 332, the second injection port 332 is provided with a second nozzle 362, and the second nozzle 362 is opposite to the thick injection port 13 on the burner frame 1.
When the water heater works, primary air enters the thick injection port 13 and the thin injection port 12 through the main air channel 101 and the additional air channel 301 under the driving of the strong exhaust fan, is mixed with gas in the combustor 2, and then is combusted above the flame port to release heat. At this time, the primary air supply of the rich nozzle on the rich channel can be not influenced by the primary air supply of the rich nozzle on the lean channel.
According to the gas water heater 100 of the embodiment of the invention, after the additional air channel 301 is additionally arranged, the primary air supply quantity and the air flow direction of the rich nozzle (the second nozzle 362) arranged on the second branch pipe 33 can be changed, the air-gas mixing effect of the burner 2 is enhanced, the combustion condition is improved, and the exhaust emission and the combustion noise are reduced. In addition, the structure changes the traditional air supply mode that the weak nozzle (the first nozzle 361) is supplied firstly and then the thick nozzle (the second nozzle 362) is supplied secondly by primary air supply, and provides convenience for adjusting the performance of the water heater.
In the second embodiment, the first embodiment of the method,
as shown in fig. 2 to 5, the present embodiment has substantially the same structure as the first embodiment, wherein the same reference numerals are used for the same components, and the difference is only that: the gas distributing rod 3 in the first embodiment does not include the adjusting plate 37, and the gas distributing rod 3 in the second embodiment is provided with the adjusting plate 37.
Referring to fig. 2, the burner frame 1 is fixed on the bottom shell of the water heater through screws, the burner frame 1 is used for installing a thick-thin burner 2, a thick injection port 13 and a thin injection port 12 are arranged on the burner frame 1, and the thick injection port 13 and the thin injection port 12 are respectively connected with a thick channel inlet and a thin channel inlet of the thick-thin burner 2. The gas distributing rod 3 is mounted on the burner housing 1 by screws.
The air distributing rod 3 comprises a first branch pipe 32, a second branch pipe 33, an additional air channel 301 formed between the first branch pipe 32 and the second branch pipe 33 and a flexible adjusting plate 37; the gap between the burner housing 1 and the first branch pipe 32 of the gas distributor strut 3 forms a main air duct 101. As shown in fig. 2 and 3, the cross section of the flexible adjusting plate 37 is in a bending state and has certain elasticity, the upper end of the flexible adjusting plate 37 is fixedly connected to the outer wall of the second branch pipe 33, and the lower end of the flexible adjusting plate 37 is in a free state and is warped outwards.
When the water heater is started, primary air enters the thick injection port 13 and the thin injection port 12 through the main air channel 101 and the additional air channel 301 under the driving of the strong air exhaust fan, the negative pressure in the combustion chamber cavity is larger than that under the normal working condition, the lower end of the flexible adjusting plate 37 is close to the first branch pipe 32 of the air distribution rod 3 under the action of high negative pressure, the flow area of the additional air channel 301 of the part is blocked, the injection amount of the thick nozzle (the second nozzle 362) to the air is reduced, and reliable ignition and fire transfer are ensured.
As shown in fig. 4 and 5, when the water heater is operated to normal load, the negative pressure in the combustion chamber cavity is lower than that during starting, the flexible adjusting plate 37 is slowly restored to an outward warping state under the action of elasticity, the flow area of the additional air channel 301 is released, the injection amount of the rich nozzle (the second nozzle 362) to the air is increased, and stable combustion is ensured.
According to the gas water heater 100 of the embodiment of the invention, after the additional air channel 301 and the flexible adjusting plate 37 are additionally arranged, the primary air supply quantity and the air flow direction of the rich nozzle (the second nozzle 362) arranged on the second branch pipe 33 can be changed, the air-gas mixing effect of the burner 2 is enhanced, the combustion condition is improved, and the exhaust gas emission and the combustion noise are reduced. In addition, the structure changes the traditional air supply mode that the fresh air nozzle is supplied firstly and then the thick air nozzle is supplied for one time, and provides convenience for adjusting the performance of the water heater.
In the third embodiment, the first step is that,
as shown in fig. 6, the present embodiment has substantially the same structure as the first embodiment, wherein the same reference numerals are used for the same components, and the difference is only that: the gas distributing rod 3 in the first embodiment does not include the partition plate 38, and the partition plate 38 is disposed on the gas distributing rod 3 in the third embodiment.
Referring to fig. 6, the burner frame 1 is fixed on the bottom shell of the water heater through screws, the burner frame 1 is used for installing a thick-thin burner 2, a thick injection port 13 and a thin injection port 12 are arranged on the burner frame 1, and the thick injection port 13 and the thin injection port 12 are respectively connected with a thick channel inlet and a thin channel inlet of the thick-thin burner 2. The gas distributing rod 3 is mounted on the burner housing 1 by screws.
The air distribution rod 3 includes a first branch pipe 32, a second branch pipe 33, an additional air passage 301 formed between the first branch pipe 32 and the second branch pipe 33, and a partition plate 38; the gap between the burner housing 1 and the first branch pipe 32 of the gas distributor strut 3 forms a main air duct 101. The partition plate 38 is installed in the additional air passage 301 of the air distribution rod 3 through a groove structure on the air distribution rod 3, and divides the additional air passage 301 into a first additional air passage 3011 on the side where the first branch pipe 32 is located and a second additional air passage 3012 on the side where the second branch pipe 33 is located.
As shown in fig. 6, when the gas water heater 100 is started, the primary air enters the rich injection port 13 and the lean injection port 12 through the main air passage 101 and the additional air passage 301 under the driving of the strong air blower. The air entering the additional air passage 301 is divided into an upper layer and a lower layer by the partition plate 38, the air at the upper layer is injected into the rich injection port 13 of the rich-lean burner 2 by the second nozzle 362 on the second branch pipe 33 through the second additional air passage 3012, and the air at the lower layer is injected into the lean injection port 12 of the rich-lean burner 2 by the first nozzle 361 on the first branch pipe 32 through the second additional air passage 3012.
According to the gas water heater 100 provided by the embodiment of the invention, the mounting position of the partition plate 38 in the additional air channel 301 is adjusted, primary air with different proportions can be distributed to the rich and lean injection ports 12, and reliable ignition and fire transfer of the rich and lean combustor 2 are ensured.
According to the gas water heater 100 of the embodiment of the invention, after the additional air channel 301 and the partition plate 38 are additionally arranged, the primary air supply quantity and the air flow direction of the rich nozzle (the second nozzle 362) arranged on the second branch pipe 33 can be changed, the air-gas mixing effect of the burner 2 is enhanced, the combustion condition is improved, and the exhaust gas emission and the combustion noise are reduced. In addition, the structure changes the traditional air supply mode that the fresh air nozzle is supplied firstly and then the thick air nozzle is supplied for one time, and provides convenience for adjusting the performance of the water heater.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A gas distributor bar for a gas water heater, comprising:
the gas burner comprises a body, a gas inlet and a gas outlet, wherein a gas main channel is arranged in the body;
the first branch pipe is internally provided with a first branch passage communicated with the main gas passage, the first branch pipe is provided with a first jet orifice communicated with the first branch passage, and the first jet orifice is suitable for being opposite to a fresh water injection orifice of the gas water heater;
the second branch pipe is internally provided with a second branch channel communicated with the main gas channel, the second branch pipe is provided with a second jet orifice communicated with the second branch channel, and the second jet orifice is suitable for being opposite to a concentrated jet orifice of the gas water heater;
an additional air passage communicated to the second branch injection port is formed between the first branch pipe and the second branch pipe, and the gas water heater is suitable for supplying air to the periphery of the second injection port through the additional air passage.
2. The gas lever for a gas water heater according to claim 1, wherein the first branch pipe and the second branch pipe each extend in a horizontal direction, and the first branch pipe and the second branch pipe are disposed spaced apart in an up-down direction to define the additional air passage therebetween.
3. The gas distributor bar for a gas water heater as defined in claim 2, further comprising:
one end of the first branch pipe is connected with one end of the second branch pipe through the first connecting pipe and communicated with the first connecting pipe;
the other end of the first branch pipe is connected with the other end of the second branch pipe through the second connecting pipe and communicated with the second connecting pipe,
the first branch pipe, the second branch pipe, the first connecting pipe and the second connecting pipe cooperate to define the additional air passage.
4. The gas stem for a gas water heater of claim 2, wherein at least a portion of the body extends parallel to the first branch tube, the gas stem further comprising: the branch pipes are arranged at intervals along the length direction of the first branch pipe and connected between the body and the first branch pipe.
5. The gas distribution rod for a gas water heater according to claim 2, wherein the first injection port comprises a plurality of first injection ports, and the plurality of first injection ports are arranged at intervals along the length direction of the first branch pipe;
the second injection port comprises a plurality of second injection ports which are arranged at intervals along the length direction of the second branch pipe.
6. The gas distributor stem for a gas water heater as defined in claim 5, wherein the central axis of said first injection port and the central axis of said second injection port are perpendicular to the plane of the central axis of said first branch pipe and the central axis of said second branch pipe, and said first injection port and said second injection port are located on the same side of said first branch pipe and said second branch pipe.
7. The gas distributor bar for a gas water heater as defined in claim 1, further comprising: the first nozzle is arranged at the first jet orifice, the second nozzle is arranged at the second jet orifice, and the outlet sectional area of the first nozzle is larger than that of the second nozzle.
8. A gas water heater, comprising:
the burner frame body is provided with an injection space, a thick injection port and a light injection port which are communicated with the injection space;
the gas distributing rod for the gas water heater according to any one of claims 1 to 7, wherein the first branch pipe and the second branch pipe are arranged in the ejection space, the first injection port is opposite to the light ejection port, the second injection port is opposite to the thick ejection port,
and a main air channel is defined between the side wall of the injection space where the light injection port and the thick injection port are positioned and the first branch pipe and the second branch pipe, and the gas water heater is suitable for supplying air to the first injection port through the main air channel.
9. The gas water heater according to claim 8, wherein the lower portion of the injection space is open, the thick injection port and the thin injection port are arranged on a side wall of the injection space at an interval in an up-down direction, the thick injection port is located above the thin injection port, and the first branch pipe is spaced from a side wall of the injection space on the other side opposite to the thin injection port.
10. The gas water heater of claim 8,
the periphery of the light injection port is provided with a first flanging extending along the circumferential direction of the light injection port, the first flanging extends along the axial direction of the light injection port and deviates from the injection space, and the first flanging is suitable for being inserted into an inlet of a light passage of a combustor arranged in the combustor frame;
the periphery of the thick injection port is provided with a second flanging extending along the periphery of the thick injection port, the second flanging axially deviates from the injection space along the thick injection port, and the second flanging is suitable for being inserted into an inlet of a thick passage of the combustor in the combustor frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910516575.1A CN112082159A (en) | 2019-06-14 | 2019-06-14 | Gas distributing rod for gas water heater and gas water heater with gas distributing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516575.1A CN112082159A (en) | 2019-06-14 | 2019-06-14 | Gas distributing rod for gas water heater and gas water heater with gas distributing rod |
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| CN112082159A true CN112082159A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910516575.1A Pending CN112082159A (en) | 2019-06-14 | 2019-06-14 | Gas distributing rod for gas water heater and gas water heater with gas distributing rod |
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