CN110530010B - Full premix type water heater - Google Patents
Full premix type water heater Download PDFInfo
- Publication number
- CN110530010B CN110530010B CN201910845950.7A CN201910845950A CN110530010B CN 110530010 B CN110530010 B CN 110530010B CN 201910845950 A CN201910845950 A CN 201910845950A CN 110530010 B CN110530010 B CN 110530010B
- Authority
- CN
- China
- Prior art keywords
- mixing cavity
- water heater
- burner
- combustion
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 55
- 238000002156 mixing Methods 0.000 claims abstract description 55
- 238000002485 combustion reaction Methods 0.000 claims abstract description 52
- 239000002737 fuel gas Substances 0.000 claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 238000005192 partition Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims 3
- 238000004200 deflagration Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
-
- 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
Abstract
The invention discloses a full premix type water heater, which comprises: a housing; the air inlet assembly comprises a shell and a blower, the shell and the blower are arranged at the upper part in the shell, the shell comprises a first mixing cavity and a second mixing cavity, and the first mixing cavity is provided with a first inlet for gas to enter and a second inlet for air to enter; the first mixing cavity is communicated with the second mixing cavity, and the communicated part is arranged at an included angle; the burner is provided with an air inlet and a combustion end, the air inlet is relatively positioned above the combustion end, and the air inlet is communicated with the output end of the second mixing cavity; the combustion chamber is positioned below the burner and is in butt joint with the combustion end of the burner, and a space for accommodating flame generated by the burner is formed in the combustion chamber; and the heat exchange pipeline exchanges heat with the combustion chamber. The water heater with the structure fully mixes the fuel gas and the air through the air inlet component, thereby being beneficial to reducing phenomena of deflagration and poor combustion.
Description
Technical Field
The invention relates to the technical field of gas appliances, in particular to a full premix type water heater.
Background
In order to improve the heat efficiency of the gas water heater, fully premixed air intake can be selected, namely, the gas and the air are fully mixed before being ignited and then ignited, and the air intake assembly on the existing water heater has complex and unreasonable structural design, so that the gas is not uniformly mixed, and the phenomena of deflagration and poor combustion occur; in addition, the existing gas water heater has room for improvement in other structures.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a full premix type water heater which can fully mix air and fuel gas, uniformly mix the air and the fuel gas and reduce phenomena of deflagration and poor combustion.
According to an aspect of the present invention, there is provided a full premix water heater comprising:
a housing;
the air inlet assembly comprises a shell and a blower, the shell and the blower are arranged at the upper part in the shell, the shell comprises a first mixing cavity and a second mixing cavity, and the first mixing cavity is provided with a first inlet for fuel gas to enter and a second inlet for air to enter; the output end of the first mixing cavity is communicated with the input end of the second mixing cavity,
the communication part of the first mixing cavity and the second mixing cavity is arranged at an included angle;
a burner mounted within the housing, the burner having an air inlet and a combustion end, the air inlet being positioned relatively above the combustion end, the air inlet being in communication with the output end of the second mixing chamber;
a combustion chamber which is arranged in the shell and is positioned below the burner and is in butt joint with the combustion end of the burner, wherein the combustion chamber is internally provided with a space for accommodating flame generated by the burner;
and the heat exchange pipeline exchanges heat with the combustion chamber.
Preferably, the interior of the first mixing chamber is venturi-shaped, the first inlet is located on the side wall of the tapered section of the first mixing chamber, the second inlet is located at the end of the tapered section of the first mixing chamber, and the second inlet is connected with the blower.
Preferably, the second mixing cavity is L-shaped, the second mixing cavity comprises a vertical section and a transverse section, the upper part of the side wall of the vertical section is communicated with the output end of the first mixing cavity, and the lower end of the vertical section is communicated with one end of the transverse section; the vertical section is cuboid, the transverse section is cuboid-like, and the upper end face of the transverse section is provided with an inclined face; a plurality of first through holes are formed in the lower end face of the transverse section.
Preferably, the aperture of the first through hole is 0.9mm-1.1mm, and the center distance between adjacent first through holes is 1.5mm-2mm.
Preferably, the burner comprises a body, wherein the body is provided with a plurality of first channels for mixed gas to pass through, the heat exchange pipeline penetrates through the first channels at the side wall of the first channels, and the heat exchange pipeline penetrates through at least one first channel.
Preferably, a second through hole is formed in the body, at least one first partition board is arranged in the second through hole, and the first partition board divides the second through hole into a plurality of first channels.
Preferably, the second through hole is cuboid, a plurality of first baffles are arranged in parallel, and the first baffles are parallel to a pair of side walls of the second through hole.
Preferably, the heat exchange pipeline in the burner region comprises a plurality of straight line segments and a plurality of arc line segments, wherein the straight line segments penetrate through the side wall of the second through hole, and the arc line segments are used for connecting the straight line segments in series.
Preferably, the thickness of the first partition plate is 0.25mm-0.35mm, and the width of the first channel is 1.1mm-1.3mm; the distance between the nearest part of the heat exchange pipeline and the air outlet of the first channel and the end face of the air outlet of the first channel is 7mm-8mm.
Preferably, a preheating device is further arranged in the shell, the preheating device comprises a preheating chamber, the inside of the preheating chamber is divided into a plurality of second channels through a plurality of second partition boards, one end of each second channel is connected with the output end of the combustion chamber, the other end of each second channel is connected with an exhaust pipe, and the heat exchange pipeline penetrates through the preheating chamber.
Any of the above technical schemes has at least the following beneficial effects: the water heater with the structure fully mixes the fuel gas and the air through the air inlet component, and the specific flow is as follows, the fuel gas and the air are initially mixed after entering the first mixing cavity to obtain the mixed gas, the mixed gas is in a laminar state at the moment, the mixed gas needs to be turned when entering the second mixing cavity, and the mixed gas is changed into a turbulent state from the laminar state at the moment, so that the air and the fuel gas are fully mixed, and the phenomena of deflagration and poor combustion are reduced; the mixed gas after being mixed evenly enters a burner for burning, flame generated by burning is positioned in a burning cavity, and the generated high-temperature gas heats water in a heat exchange pipeline; it should be noted that the flame generated in the above technical scheme accelerates the flow of the mixed gas through the blower from top to bottom, and then maintains the flame downward, so that the corrosion of internal components caused by the backflow of condensed water can be avoided, the flow rate of flue gas can be reduced, the contact time of the combustion flue gas and the heat exchange pipeline can be increased, and the heat exchange rate can be improved.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic representation of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a schematic view of an embodiment of an air intake assembly according to the present invention;
FIG. 4 is a schematic view of an embodiment of a housing according to the present invention;
FIG. 5 is a schematic illustration of a burner embodiment of the present invention;
FIG. 6 is a schematic diagram of a burner embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 6, a full premix type water heater includes:
a housing 1;
the air inlet assembly comprises a shell 2 and a blower 3, the shell 2 and the blower 3 are arranged at the upper part in the shell 1, the shell 2 comprises a first mixing cavity 4 and a second mixing cavity 5, and the first mixing cavity 4 is provided with a first inlet 6 for fuel gas and a second inlet 7 for air; the output end of the first mixing chamber 4 communicates with the input end of the second mixing chamber 5,
the communication part of the first mixing cavity 4 and the second mixing cavity 5 is arranged at an included angle;
the burner 8 is arranged in the shell 1, the burner 8 is provided with an air inlet and a combustion end, the air inlet is relatively positioned above the combustion end, and the air inlet is communicated with the output end of the second mixing cavity 5;
a combustion chamber 9 installed in the housing 1 below the burner 8, abutting against the combustion end of the burner 8, the combustion chamber 9 having a space therein for accommodating flames generated by the burner 8;
the preheating device is arranged in the shell 1 and comprises a preheating chamber 10, the interior of the preheating chamber 10 is divided into a plurality of second channels through a plurality of second partition plates 11, one end of each second channel is connected with the output end of the combustion chamber 9, the other end of each second channel is connected with an exhaust pipe 12, and a heat exchange pipeline 13 penetrates through the preheating chamber 10;
the heat exchange pipeline 13 exchanges heat with the preheating chamber 10 and the combustion chamber 9.
The water heater with the structure fully mixes the fuel gas and the air through the air inlet component, and the specific flow is as follows, the fuel gas and the air are initially mixed after entering the first mixing cavity 4 to obtain the mixed gas, the mixed gas is in a laminar state at the moment, the mixed gas needs to be turned when entering the second mixing cavity, and the mixed gas is changed into a turbulent state from the laminar state at the moment, so that the air and the fuel gas are fully mixed, and the phenomena of deflagration and poor combustion are reduced; the mixed gas after being uniformly mixed enters the combustor 8 for combustion, flame generated by the combustion is positioned in the combustion chamber 9, the generated high-temperature gas heats water in the heat exchange pipeline 13, tail gas after the combustion enters the preheating chamber 10, heat of the tail gas can preheat water in the heat exchange pipeline 13, and the preheated water is further heated through the combustion chamber 9; it should be noted that, the flame generated in the above technical scheme accelerates the flow of the mixed gas through the blower 3 from top to bottom, and further maintains the flame downward, so that corrosion of internal components caused by condensate water backflow can be avoided, the flow rate of smoke can be reduced, the contact time of the combustion smoke and the heat exchange pipeline 13 can be increased, and the heat exchange rate can be improved. The heat exchange pipeline 13 penetrates through the preheating chamber 10, the heat exchange pipeline 13 winds downwards from the upper part of the outer side of the combustion chamber 9 after coming out of the preheating chamber 10, the heat exchange pipeline 13 penetrates through the combustion chamber 9 when the heat exchange pipeline 13 winds to the lower part of the combustion chamber 9, and the heat exchange pipeline 13 penetrates into the combustor 8 after coming out of the combustion chamber 9; the best heat exchange effect can be achieved.
It is understood that the preheating device can be installed or not according to the requirement, and the preheating device can be not installed when the manufacturing cost is considered, so that the cost can be saved.
As shown in fig. 3-4, in some embodiments, the interior of the first mixing chamber 4 is venturi-shaped, the first inlet 6 is located on the side wall of the tapered section of the first mixing chamber 4, the second inlet 7 is located at the end of the tapered section of the first mixing chamber 4, and the second inlet 7 is connected to the blower 3. In the above embodiment, the flow of the gas in the venturi tube has an acceleration process, so that the gas can be quickly sucked into the mixed gas, and the phenomenon that the mixed gas is transitionally concentrated due to too slow flow speed can be reduced, thereby reducing the probability of deflagration. In addition, the air is blown in at a high speed from the second inlet 7 by the blower 3, and the flow of the mixed gas is further accelerated, so that the tempering is prevented from being too deep.
As shown in fig. 3, in some embodiments, the second mixing chamber 5 is L-shaped, the second mixing chamber 5 includes a vertical section 14 and a lateral section 15, an upper portion of a sidewall of the vertical section 14 is communicated with an output end of the first mixing chamber 4, and a lower end of the vertical section 14 is communicated with one end of the lateral section 15; when the mixed gas enters the second mixing cavity 5, the mixed gas firstly enters the vertical section 14, turbulence is generated in the mixed gas, mixing is more uniform, and when the mixed gas enters the transverse section 15 from the vertical section 14, the speed of the mixed gas is reduced due to the fact that the cross section is enlarged, the mixed gas is uniformly filled into the transverse section 15, and flame stabilization during ignition is facilitated. Wherein the vertical section 14 is cuboid, the transverse section 15 is cuboid-like, and the upper end surface of the transverse section 15 is provided with an inclined surface 16; the lower end surface of the transverse section 15 is provided with a plurality of first through holes 22; the arrangement of the transverse section 15 can slowly reduce the flow rate of the mixed gas, so that the mixed gas can be uniformly filled into the transverse section 15.
It will be appreciated that other connection means may be used between the vertical section and the transverse section 15, for example, the vertical section may be selectively connected to the middle of the upper end surface of the transverse section 15, and the mixed gas may be more uniformly filled into the transverse section 15.
As shown in fig. 4, in some embodiments, the aperture of the first through holes 22 is 1mm, the center-to-center distance between the adjacent first through holes 22 is 1.5mm, and the first through holes 22 with the above dimensions increase the resistance at the outlet, reduce the flow rate of the mixed gas, and enable the air and the combustible gas to have more sufficient mixing time with each other; the single outlet in the prior art is changed into a plurality of outlets, so that mixed gas is prevented from being concentrated at a certain point to pass, the conditions of deflagration and poor combustion are effectively reduced, and meanwhile, the combustion area can be increased due to multi-point overgas, and the combustion stability is improved. It will be appreciated that the above dimensions are preferred for the first through hole 22 and are not necessarily required to be used for this purpose; through testing, the diameter of the first through holes 22 is 0.9mm-1.1mm, and the center distance between the adjacent first through holes 22 is 1.5mm-2mm.
As shown in fig. 5-6, in some embodiments, the burner 8 includes a body 17, where the body 17 has a plurality of first channels 18 for mixed gas to pass through, and the heat exchange pipeline 13 penetrates the first channels 18 at the side walls of the first channels 18, and the heat exchange pipeline 13 penetrates all the first channels 18. In the above embodiment, the heat exchange pipeline 13 penetrating through the first channel 18 is provided to cool the mixed gas and the body 17, which is conducive to reducing the generation of harmful gases such as nitrogen oxides, and at the same time, the service life of the body 17 is prolonged in a low temperature state, the oxidation rate is reduced, the flame propagation speed of the mixed gas is also reduced, and further the burning of the body 17 due to a tempering state is avoided, and at the same time, the heat exchange pipeline 13 can absorb heat in the burner 8, thereby improving the heat efficiency of the whole machine. It can be understood that the heat exchange pipeline 13 can achieve the effect of reducing the temperature of the mixed gas and the body 17 only by penetrating through at least one first channel 18, so that the cooling effect is optimal when penetrating through all the first channels 18 without limiting to penetrating through all the first channels 18.
In the prior art, the body 17 is generally composed of a plurality of gas ejectors, which are not suitable for the full premix burner 8 and are prone to deflagration. To this end, as illustrated in the figures, in some embodiments, the body 17 is provided with a second through hole, in which a plurality of first partitions 19 are provided, and the first partitions 19 divide the second through hole into a plurality of first channels 18; the heat exchange pipeline 13 penetrates through the side wall of the second through hole and the first partition plate 19; the second through hole is the cuboid form, and a plurality of first baffles 19 are parallel arrangement, and first baffle 19 is parallel with a pair of lateral walls of second through hole. In the above embodiment, the second through hole is divided into the first channel 18 by the first partition plate 19, the mixed gas is passed through by means of the first channel 18, the tail end of the first channel 18 is a combustion end, and the head end of the first channel 18 is an air inlet; the mixed gas is ignited at the combustion end to burn, so that the whole end face of the tail end of the first channel 18 is a combustion area, namely, the mixed gas is ignited on the single surface of the body 17 after passing through the first channel 18, and because the gas outlet points are quite similar, a 'continuous piece' flame is formed after successful ignition, the structure is beneficial to improving the complete combustion rate of fuel gas, reducing the incomplete combustion state caused by the un-ignited fuel gas, and achieving the energy-saving effect.
It is understood that the second through hole may have other shapes, such as a cylindrical shape or a cuboid-like shape, etc., and is not limited to the cuboid shape; the first partition plates 19 are not necessarily parallel to each other, and any angle is formed between the first partition plates 19 and the first partition plates 19 as long as the purpose of dividing the second through holes is achieved, and the like.
As illustrated in fig. 5, in some embodiments, the heat exchange line 13 in the burner region includes straight sections 20 and arc sections 21, the straight sections 20 extending through the sidewall of the second through hole, the arc sections being used to connect the straight sections 20 in series. So can prolong the length of heat exchange pipeline 13 in the second through-hole, improve the heat exchange time between heat exchange pipeline 13 and the body 17 to absorb more heat, specific heat exchange time can be adjusted through the quantity of arc section according to actual need, above-mentioned structure is the arc section and straight line section 20 is the split type setting preferably, does benefit to production and later stage equipment, of course, whole heat exchange pipeline 13 also can integrated into one piece make, so as to reduce the leakage point.
In certain embodiments, as illustrated in FIG. 6, the first separator 19 has a thickness of 0.25mm to 0.35mm and the first channel 18 has a width of 1.1mm to 1.3mm. Preferably, the thickness of the first partition plate 19 is 0.3mm, the width of the first channel 18 is 1.2mm, the first partition plate 19 with the above size can properly reduce the flow rate of the mixed gas, and can uniformly distribute the mixed gas into each first channel 18, so that the pressure of the mixed gas is effectively reduced, the flame height is further reduced, and the generation of bad tail gas products such as carbon monoxide and nitrogen oxides after combustion is reduced.
In some embodiments, as shown in fig. 5, the heat exchange line 13 is located closest to the air outlet of the first channel 18 and is located 7mm-8mm from the air outlet end face of the first channel 18, preferably the heat exchange line 13 is located closest to the air outlet end face of the first channel 18 and is located 7mm from the air outlet end face of the first channel 18, so that the heat exchange line 13 can absorb heat as much as possible without affecting the flame, and is the optimal distance.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. A full premix water heater, characterized by comprising:
a housing;
the air inlet assembly comprises a shell and a blower, the shell and the blower are arranged at the upper part in the shell, the shell comprises a first mixing cavity and a second mixing cavity, and the first mixing cavity is provided with a first inlet for fuel gas to enter and a second inlet for air to enter; the output end of the first mixing cavity is communicated with the input end of the second mixing cavity,
the communication part of the first mixing cavity and the second mixing cavity is arranged at an included angle;
a burner mounted within the housing, the burner having an air inlet and a combustion end, the air inlet being positioned relatively above the combustion end, the air inlet being in communication with the output end of the second mixing chamber;
a combustion chamber which is arranged in the shell and is positioned below the burner and is in butt joint with the combustion end of the burner, wherein the combustion chamber is internally provided with a space for accommodating flame generated by the burner;
the heat exchange pipeline exchanges heat with the combustion chamber;
the second mixing cavity is L-shaped, the second mixing cavity comprises a vertical section and a transverse section, the upper portion of the side wall of the vertical section is communicated with the output end of the first mixing cavity, and the lower end of the vertical section is communicated with one end of the transverse section.
2. The fully premixed water heater as set forth in claim 1, wherein said first mixing chamber is venturi-shaped, said first inlet is located on a side wall of a tapered section of said first mixing chamber, said second inlet is located at an end of said tapered section of said first mixing chamber, and said second inlet is connected to said blower.
3. The full premix water heater as set forth in claim 1, wherein said vertical section is in the shape of a rectangular parallelepiped, said lateral section is in the shape of a rectangular parallelepiped, and an upper end surface of said lateral section is provided with an inclined surface; a plurality of first through holes are formed in the lower end face of the transverse section.
4. A full premix water heater as in claim 3 wherein said first through holes have a diameter of 0.9mm to 1.1mm and a center-to-center distance between adjacent ones of said first through holes is 1.5mm to 2mm.
5. The fully premixed water heater according to claim 1, wherein the burner comprises a body, the body is provided with a plurality of first channels for mixed gas to pass through, the heat exchange pipeline penetrates through the first channels at the side wall of the first channels, and the heat exchange pipeline penetrates through at least one first channel.
6. The water heater of claim 5, wherein a second through hole is formed in the body, at least one first partition is disposed in the second through hole, and the first partition divides the second through hole into a plurality of first channels.
7. The water heater of claim 6, wherein said second through holes are rectangular, said plurality of first spacers are disposed in parallel, and said first spacers are parallel to a pair of sidewalls of said second through holes.
8. The fully premixed water heater of claim 6 wherein said heat exchange tube in the burner region comprises a plurality of straight sections extending through the sidewall of said second through hole and a plurality of arcuate sections for serially connecting said plurality of straight sections.
9. The full premix water heater of claim 6 wherein said first spacer has a thickness of 0.25mm to 0.35mm and said first channel has a width of 1.1mm to 1.3mm; the distance between the nearest part of the heat exchange pipeline and the air outlet of the first channel and the end face of the air outlet of the first channel is 7mm-8mm.
10. The full premix water heater of claim 1, wherein a preheating device is further arranged in the housing, the preheating device comprises a preheating chamber, the interior of the preheating chamber is divided into a plurality of second channels by a plurality of second partition boards, one end of each second channel is connected with the output end of the combustion chamber, the other end of each second channel is connected with an exhaust pipe, and the heat exchange pipeline penetrates through the preheating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845950.7A CN110530010B (en) | 2019-09-09 | 2019-09-09 | Full premix type water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845950.7A CN110530010B (en) | 2019-09-09 | 2019-09-09 | Full premix type water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110530010A CN110530010A (en) | 2019-12-03 |
| CN110530010B true CN110530010B (en) | 2024-02-09 |
Family
ID=68667740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910845950.7A Active CN110530010B (en) | 2019-09-09 | 2019-09-09 | Full premix type water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110530010B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217989A (en) * | 1994-01-26 | 1995-08-18 | Rinnai Corp | Heat exchanger |
| CN1497211A (en) * | 2002-10-22 | 2004-05-19 | 株式会社庆东Boiler | Gas burner capable of multilevel controlled |
| CN104937341A (en) * | 2013-01-18 | 2015-09-23 | 庆东纳碧安株式会社 | Combustion apparatus having air intake preheater |
| WO2017069078A1 (en) * | 2015-10-19 | 2017-04-27 | リンナイ株式会社 | Hot-water supply system |
| WO2017193479A1 (en) * | 2016-05-13 | 2017-11-16 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN207350776U (en) * | 2017-10-24 | 2018-05-11 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109695955A (en) * | 2017-10-24 | 2019-04-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN210772730U (en) * | 2019-09-09 | 2020-06-16 | 广东长青（集团）股份有限公司 | Fully premixed water heater |
-
2019
- 2019-09-09 CN CN201910845950.7A patent/CN110530010B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217989A (en) * | 1994-01-26 | 1995-08-18 | Rinnai Corp | Heat exchanger |
| CN1497211A (en) * | 2002-10-22 | 2004-05-19 | 株式会社庆东Boiler | Gas burner capable of multilevel controlled |
| CN104937341A (en) * | 2013-01-18 | 2015-09-23 | 庆东纳碧安株式会社 | Combustion apparatus having air intake preheater |
| WO2017069078A1 (en) * | 2015-10-19 | 2017-04-27 | リンナイ株式会社 | Hot-water supply system |
| CN108291718A (en) * | 2015-10-19 | 2018-07-17 | 林内株式会社 | Water heater |
| WO2017193479A1 (en) * | 2016-05-13 | 2017-11-16 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN207350776U (en) * | 2017-10-24 | 2018-05-11 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109695955A (en) * | 2017-10-24 | 2019-04-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN210772730U (en) * | 2019-09-09 | 2020-06-16 | 广东长青（集团）股份有限公司 | Fully premixed water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110530010A (en) | 2019-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3814604B2 (en) | Gas combustion burner realizing multi-stage control | |
| CN101852430A (en) | Coanda gas burner apparatus and method | |
| CN211502778U (en) | Combustor and gas heater thereof | |
| CN109404907A (en) | Burner and gas heater | |
| JP3814603B2 (en) | Premixed gas combustion burner with separated flame holes | |
| CN210772730U (en) | Fully premixed water heater | |
| CN110530010B (en) | Full premix type water heater | |
| CN112066369B (en) | Combustor, hanging stove and water heater | |
| KR100495505B1 (en) | Multi-Control Possible The Gas Burner | |
| WO2023185107A1 (en) | Combustion device and gas water heater | |
| CN211903315U (en) | Combustor and water heater | |
| CN211781071U (en) | Steady flame row piece and combustor | |
| WO2018094752A1 (en) | Burner and gas water heater provided with same | |
| CN210861719U (en) | Novel low-nitrogen energy-saving hot water unit | |
| CN112944674A (en) | High-efficient gas heating boiler | |
| CN110530030B (en) | Combustor and water heater | |
| CN210601610U (en) | Combustor monomer, low-nitrogen combustor and gas hot water equipment | |
| CN214536169U (en) | Combustor and gas warmer | |
| CN211925745U (en) | Full premix combustor, full premix heat exchanger and hanging stove | |
| CN216114022U (en) | Pre-mixing thick-thin burner of pre-mixing fan | |
| JP3499174B2 (en) | Low-pollution, high-efficiency, rich-lean combustion gas burner for households using a porous plate organized by porous metal fiber weaving | |
| CN110145861B (en) | Air-permeable baffle, wall-mounted furnace and wall-mounted furnace fire transmission performance improvement method | |
| CN216667977U (en) | High-efficient gas heating boiler | |
| CN219674215U (en) | Pizza stove burner | |
| CN211345300U (en) | Post-premixing water-cooling surface combustion equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200810 Address after: 528400 2nd floor, No.3, No.42, South Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Applicant after: Zhongshan chuang'erte Smart Home Technology Co.,Ltd. Address before: 528400 No. 42, South Industrial Avenue, Zhongshan, Guangdong Applicant before: GUANGDONG CHANT Group Inc. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231222 Address after: 528400 No.1, South 42, Gongye Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Applicant after: Changqing thermal energy technology (Zhongshan) Co.,Ltd. Address before: 528400 No.3, 2nd floor, No.42, South Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Applicant before: Zhongshan chuang'erte Smart Home Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |