CN211903315U

CN211903315U - Combustor and water heater

Info

Publication number: CN211903315U
Application number: CN201921497847.XU
Authority: CN
Inventors: 李杰辉; 梁德龙; 夏国平; 谢春光; 麦正辉
Original assignee: Zhongshan Chuang'erte Smart Home Technology Co Ltd
Current assignee: Zhongshan Chuang'erte Smart Home Technology Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-11-10
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses a burner, which comprises a body and a water pipe, wherein the body is provided with a plurality of channels for mixed gas to pass through, the water pipe penetrates through the channels at the side wall of the channels, and the water pipe penetrates through at least one channel; a water heater comprises the burner. The water pipe penetrating through the passage is arranged in the passage to cool the mixed gas and the body, so that the generation of harmful gases such as nitrogen oxides is reduced, meanwhile, the service life of the body is prolonged under a low-temperature state, the oxidation rate is reduced, the flame propagation speed of the mixed gas can also be reduced, the body can be prevented from being burnt due to a tempering state, meanwhile, the water pipe can absorb heat in a combustor, and the heat efficiency of the whole machine is improved.

Description

Combustor and water heater

Technical Field

The utility model relates to a gas apparatus technical field, in particular to cross water formula intermittent type combustor and water heater.

Background

Gas water heaters generally include a burner and a heat exchange line, and a flame generated by the burner exchanges heat with water in the heat exchange line. In the fully premixed burner, the flame propagation capacity of the mixed gas is very strong, the flame stability during combustion is poor, and tempering is easy to occur. In order to prevent backfire, it is necessary to ensure that the flow rate of the mixture gas is greater than the flame propagation speed of combustion of the gas, which increases with increasing temperature, so that the most effective way to prevent backfire is to reduce the temperature of the gas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a cross water formula clearance combustor and water heater, can effectively reduce gas temperature and improve the complete machine thermal efficiency.

According to the utility model discloses an aspect provides a combustor, including body and water pipe, have a plurality of passageways that supply the mist to pass through on the body, the water pipe in the lateral wall department of passageway runs through the passageway, the water pipe runs through at least one the passageway.

Preferably, the body is provided with a through hole, at least one partition board is arranged in the through hole, and the partition board divides the through hole into a plurality of channels.

Preferably, the water pipe penetrates through a sidewall of the through hole and the partition.

Preferably, the water pipe comprises a plurality of straight line segments and a plurality of arc segments, the straight line segments penetrate through the side wall of the through hole, and the arc segments are used for connecting the straight line segments in series.

Preferably, the through hole is cuboid, the plurality of partition plates are arranged in parallel, and the partition plates are parallel to the pair of side walls of the through hole.

Preferably, the thickness of the partition plate is 0.25mm-0.35mm, and the width of the channel is 1.1mm-1.3 mm.

Preferably, the two ends of the body are both provided with annular convex edges which are turned outwards, and threaded holes are formed in the annular convex edges.

Preferably, the water pipe is connected with the output end of the heat exchange pipeline.

Preferably, the distance between the position, closest to the air outlet of the channel, on the water pipe and the end face of the air outlet of the channel is 7-8 mm.

Any one of the technical schemes at least has the following beneficial effects: the water pipe penetrating through the passage is arranged in the passage to cool the mixed gas and the body, so that the generation of harmful gases such as nitrogen oxides is reduced, meanwhile, the service life of the body is prolonged under a low-temperature state, the oxidation rate is reduced, the flame propagation speed of the mixed gas can also be reduced, the body can be prevented from being burnt due to a tempering state, meanwhile, the water pipe can absorb heat in a combustor, and the heat efficiency of the whole machine is improved.

According to a second aspect of the present invention, there is provided a water heater comprising the above burner.

The technical scheme at least has the following beneficial effects: the water pipe penetrating through the passage is arranged in the passage to cool the mixed gas and the body, so that the generation of harmful gases such as nitrogen oxides is reduced, meanwhile, the service life of the body is prolonged under a low-temperature state, the oxidation rate is reduced, the flame propagation speed of the mixed gas can also be reduced, the body can be prevented from being burnt due to a tempering state, meanwhile, the water pipe can absorb heat in a combustor, and the heat efficiency of the whole machine is improved.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is a schematic view of an embodiment of a combustor;

FIG. 2 shows a schematic view of a burner embodiment.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood 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 there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the burner comprises a body 1 and a water pipe 2, wherein the body 1 is provided with a plurality of channels 3 for mixed gas to pass through, the water pipe 2 penetrates through the channels 3 at the side wall of the channels 3, the water pipe 2 penetrates through all the channels 3, and the water pipe 2 is connected with the output end of a heat exchange pipeline. According to the embodiment, the water pipe 2 penetrating through the channel 3 is arranged in the channel to cool the mixed gas and the body 1, so that the generation of harmful gases such as nitrogen oxides is reduced, meanwhile, the service life of the body 1 is prolonged under a low-temperature state, the oxidation rate is reduced, the flame propagation speed of the mixed gas can also be reduced, the body 1 can be prevented from being burnt due to a tempering state, meanwhile, the water pipe 2 can absorb heat in a combustor, and the heat efficiency of the whole machine is improved. It can be understood that the water pipe 2 only needs to penetrate through at least one channel 3 to achieve the effect of reducing the temperature of the mixed gas and the body 1, so that the water pipe is not limited to penetrate through all the channels 3, and the cooling effect is optimal when the water pipe penetrates through all the channels 3.

In the prior art, the body 1 generally comprises a plurality of gas ejectors, and the gas ejector of the type is not suitable for a full premix burner and is easy to generate a detonation phenomenon. To this end, as shown in fig. 2, in some embodiments, the body 1 is provided with a through hole, a plurality of partition plates 4 are arranged in the through hole, and the partition plates 4 divide the through hole into a plurality of channels 3; the water pipe 2 penetrates through the side wall of the through hole and the partition plate 4; the through hole is in a cuboid shape, a plurality of partition plates 4 are arranged in parallel, and the partition plates 4 are parallel to a pair of side walls of the through hole. Above-mentioned embodiment is cut apart into passageway 3 with the through-hole through baffle 4, supply the mist to pass through with the help of passageway 3, light the mist at the tail end of passageway 3 and burn, the whole terminal surface of the gas outlet of visible channel 3 is the combustion area, the mist passes through passageway 3 back promptly, light a fire in 1 single surface of body, because of each gas outlet point position is very close, will form "even piece" formula flame after the success of lighting a fire, this structure helps improving the complete combustion rate of gas, the reduction is because of the incomplete combustion state appears in the gas that does not ignite, thereby reach energy-conserving effect.

It is understood that the through hole may have other shapes, such as a cylindrical shape, a rectangular parallelepiped shape, etc., and is not limited to the rectangular parallelepiped shape; the partition plates 4 do not necessarily have to be parallel to each other, and any angle may be formed between the partition plates 4 and the partition plates 4 as long as the purpose of dividing the through-holes is achieved, and so on.

As shown in fig. 2, in some embodiments, the water pipe 2 includes a plurality of straight line segments 5 and a plurality of arc segments 6, the straight line segments 5 penetrate through the side wall of the through hole, and the arc segments 6 are used for connecting the plurality of straight line segments 5 in series. So can prolong the length of water pipe 2 in the through-hole, improve the heat exchange time between water pipe 2 and the body 1 to absorb away more heats, specific heat exchange time can be adjusted through the quantity of arc segment 6 according to actual need, above-mentioned structural arc segment 6 and the preferred split type setting of straightway 5 do benefit to production and later stage equipment, of course, whole water pipe 2 also can make by integrated into one piece, so that reduce the leakage point.

As shown in FIG. 2, in certain embodiments, the spacer 4 has a thickness of 0.25mm to 0.35mm and the channel 3 has a width of 1.1mm to 1.3 mm. Preferably, the thickness of the partition plate 4 is 0.3mm, the width of the channel 3 is 1.2mm, the partition plate 4 with the above size can properly reduce the flow rate of the mixed gas, and can uniformly distribute the mixed gas into each channel 3, thereby effectively reducing the self pressure of the mixed gas, further reducing the height of flame, and reducing the generation of undesirable tail gas products such as carbon monoxide and nitrogen oxides after combustion.

As shown in fig. 2, in some embodiments, the distance from the end surface of the water pipe 2 closest to the air outlet of the channel 3 is 7mm to 8mm, and preferably the distance from the end surface of the water pipe 2 closest to the air outlet of the channel 3 is 7mm, so that the water pipe 2 can absorb heat as much as possible at an optimal distance without affecting the flame.

As shown in fig. 2, in some embodiments, the two ends of the body 1 are both provided with an annular flange 7 which is turned over outwards, the annular flange 7 is provided with a threaded hole 9, the two annular flanges 7 are respectively connected with the air inlet device and the combustion chamber of the water heater, the annular flange 7 is further provided with an upward annular baffle ring 8 so as to form a sealing connection with the air inlet device and the combustion chamber, and the body 1 with the above structure can be connected with the air inlet device and the combustion chamber quickly and stably.

According to a second aspect of the present invention, there is provided a water heater comprising the above burner. The water pipe penetrating through the passage is arranged in the passage to cool the mixed gas and the body, so that the generation of harmful gases such as nitrogen oxides is reduced, meanwhile, the service life of the body is prolonged under a low-temperature state, the oxidation rate is reduced, the flame propagation speed of the mixed gas can also be reduced, the body can be prevented from being burnt due to a tempering state, meanwhile, the water pipe can absorb heat in a combustor, and the heat efficiency of the whole machine is improved.

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 without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A burner is characterized by comprising a body and water pipes, wherein the body is provided with a plurality of channels for mixed gas to pass through, the water pipes penetrate through the channels at the side walls of the channels, and the water pipes penetrate through at least one channel; the body is provided with a through hole, at least one partition board is arranged in the through hole, and the partition board divides the through hole into a plurality of channels; the water pipe comprises a plurality of straight line sections and a plurality of arc line sections, the straight line sections penetrate through the side wall of the through hole, and the arc line sections are used for connecting the straight line sections in series.

2. A burner as in claim 1, wherein said water tube extends through a sidewall of said through-hole and said baffle.

3. A burner as in claim 1, wherein said through-hole is rectangular and a plurality of said partitions are disposed in parallel, said partitions being parallel to a pair of sidewalls of said through-hole.

4. A burner as in claim 1, wherein said baffle has a thickness of 0.25mm to 0.35mm and said channel width is 1.1mm to 1.3 mm.

5. The burner as claimed in claim 1, wherein the body is provided at both ends thereof with outwardly turned annular flanges, and the annular flanges are provided with threaded holes.

6. A burner as in claim 1, wherein said water tube is connected to the output end of the heat exchange line.

7. A burner as claimed in claim 1, wherein said water conduit is positioned closest to the outlet of said passageway at a distance of from 7mm to 8mm from the end face of said outlet of said passageway.

8. A water heater comprising a burner as claimed in any one of claims 1 to 7.