CN212408659U

CN212408659U - Infrared burner

Info

Publication number: CN212408659U
Application number: CN202022219127.6U
Authority: CN
Inventors: 毛久富
Original assignee: Xinnengke Electric Co ltd
Current assignee: Xinnengke Electric Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-26
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses an infrared burner, including casing, ceramic radiation board and a plurality of burner tip. Flame that gas combustion produced mainly burns along the inclined plane of flaring, and heat energy effectively transmits the ceramic radiation board between the adjacent through-hole on, can improve ceramic radiation board's heat absorption effect more, takes place infrared ray thermal radiation after ceramic radiation board absorbs heat energy and heats the article of placing above it, effectively reduces the heat energy that the burning produced and directly gives off the environment in, and then very big improvement the utilization efficiency of heat energy. Because the heat utilization rate is high, the infrared burner can reduce the combustion amount of combustible gas under the condition of heating by using equivalent heat energy, thereby achieving the effects of energy conservation and emission reduction.

Description

Infrared burner

Technical Field

The utility model relates to a combustor, in particular to infrared burner.

Background

The existing common burners in the market generate flame by burning gas, and the heat energy emitted by the flame is utilized to directly heat the objects on the flame. In particular to a water heating device such as a water heater or a steam engine, high-temperature flue gas generated by gas exchanges heat with water through a heat exchanger. The heat energy generated by the fuel gas is directly dissipated, so that the heat energy utilization rate is not high.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. Therefore, the utility model provides an infrared burner.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

according to the utility model discloses an infrared burner of first aspect embodiment includes:

the inner part of the shell is divided into a gas mixing cavity and an installation cavity;

the ceramic radiation plate is arranged in the mounting cavity and is provided with a plurality of through holes, and the top ends of the through holes are inverted cone-shaped flaring openings;

the combustion nozzles comprise a hollow columnar body and an upper end head which is positioned at the top end of the body and is in an inverted cone shape, a plurality of air outlet holes are formed in the upper portion of the side wall of the body, each combustion nozzle is respectively installed on each through hole, the upper end head is positioned above the flaring, and air entraining gaps are formed between the upper end head and the flaring and between the inner wall of each through hole and the outer wall of the body at the corresponding position of each air outlet hole;

the gas flows along the gas mixing cavity, the through hole, the inner part of the body, the air outlet hole and the air entraining gap in sequence, and is combusted at the air entraining gap which is correspondingly inclined between the upper end head and the flaring.

According to the utility model discloses infrared burner has following beneficial effect at least: flame that gas combustion produced mainly burns along the inclined plane of flaring, and heat energy effectively transmits the ceramic radiation board between the adjacent through-hole on, can improve ceramic radiation board's heat absorption effect more, takes place infrared ray thermal radiation after ceramic radiation board absorbs heat energy and heats the article of placing above it, effectively reduces the heat energy that the burning produced and directly gives off the environment in, and then very big improvement the utilization efficiency of heat energy. Because the heat utilization rate is high, the infrared burner can reduce the combustion amount of combustible gas under the condition of heating by using equivalent heat energy, thereby achieving the effects of energy conservation and emission reduction.

According to some embodiments of the invention, the maximum diameter of the upper end is greater than the maximum diameter of the flare.

According to some embodiments of the present invention, a communication groove is provided between the upper surface of the ceramic radiation plate and the adjacent two flares.

According to the utility model discloses a some embodiments, set up on the body the quantity of venthole and single the flaring is equipped with intercommunication groove quantity equals, and each venthole position and each the position in intercommunication groove corresponds each other.

According to some embodiments of the utility model, the venthole is followed the radial setting of body.

According to some embodiments of the utility model, the venthole follows the radial and slope orientation setting of body.

According to some embodiments of the invention, the body lower part is fixedly mounted in the through hole through a metal fixing tube.

According to some embodiments of the present invention, the installation cavity bottom and be equipped with thermal-insulated cotton between the ceramic radiant panel.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a sectional view of the present invention;

FIG. 4 is a schematic view of a ceramic radiant panel according to the present invention;

fig. 5 is a schematic view of the burner of the present invention.

Reference numerals: a housing 100; a gas mixing chamber 110; a mounting cavity 120; a ceramic radiation plate 200; a through-hole 210; a flare 220; a burner tip 300; a body 310; an upper head 320; an air outlet hole 330; a bleed air gap 400; a first gap 410; a second gap 420; a communication groove 230; a metal fixing tube 500; heat insulation cotton 600; the air tube 700.

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 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 exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, an infrared burner includes a housing 100, a ceramic radiation plate 200, and a plurality of burners 300. The interior of the casing 100 is partitioned into a gas mixing chamber 110 at a lower portion and a mounting chamber 120 at an upper portion. The gas mixing chamber 110 may introduce the premixed combustible gas into the gas mixing chamber 110 through the gas pipe 700. The ceramic radiation plate 200 is fixed in the installation cavity 120, a plurality of through holes 210 are arranged on the ceramic radiation plate 200, the upper end and the lower end of each through hole 210 are respectively communicated with the upper surface and the lower surface of the ceramic radiation plate 200, and openings corresponding to the positions of the through holes 210 are arranged on the partition plate between the air mixing cavity 110 and the installation cavity 120. The top end of the through hole 210 is provided with a flared opening 220 which is in an inverted cone shape and is enlarged from bottom to top. As shown in FIG. 5, the burner tip 300 is installed on each through hole 210, and the burner tip 300 includes a hollow cylindrical body 310 and an upper end head 320, wherein the upper end head 320 is located at the top of the body 310, and the upper end head 320 is in the shape of an inverted cone similar to the shape of the flared end 220, i.e., the upper portion of the upper end head 320 is larger than the lower portion thereof. A plurality of air outlets 330 are formed on the sidewall of the upper portion of the body 310. The body 310 of the burner tip 300 is inserted into the through hole 210, the lower outer wall of the body 310 is hermetically connected with the lower inner wall of the through hole 210, the upper end head 320 is positioned above the flared opening 220, a communicated air-entraining gap 400 is formed between the upper end head 320 and the flared opening 220 and between the upper outer wall of the body 310 and the upper inner wall of the through hole 210, namely, the air-entraining gap 400 is divided into a first gap 410 between the upper outer wall of the body 310 and the upper inner wall of the through hole 210 and a second gap 420 between the upper end head 320 and the flared opening 220, and the first gap 410 and the second gap 420 are communicated with each other to form the air-entraining gap 400.

As shown in fig. 3, in operation, after the combustible gas enters the gas mixing chamber 110 through the gas pipe 700, the combustible gas flows along the through hole 210, the inside of the body 310, the gas outlet hole 330 and the air-entraining gap 400 in sequence, and finally, the combustible gas is mainly combusted in the second gap 420. Combustible gas enters the body 310 and is sprayed out through the air outlet holes 330, so that the air pressure of the combustible gas entering the air guiding gap 400 is effectively increased. Because the second gap 420 between the upper end 320 and the flared opening 220 is an inclined plane with a larger diameter, compared with the situation of combustion after direct vertical injection, combustible gas is obliquely injected and combusted along the inclined plane, the combustion range is enlarged, the combustion efficiency is improved, and the generation of harmful gases such as nitrogen oxides is reduced. Flame that gas combustion produced mainly burns along the inclined plane of flaring 220, and heat energy effectively transmits to the ceramic radiation board 200 between the adjacent through-hole 210 on, can improve ceramic radiation board 200's heat absorption effect more, takes place infrared ray thermal radiation after ceramic radiation board 200 absorbs heat energy and heats the article of placing above that, effectively reduces the heat energy that the burning produced and directly gives off in the environment, and then very big improvement the utilization efficiency of heat energy. Because the heat utilization rate is high, the infrared burner can reduce the combustion amount of combustible gas under the condition of heating by using equivalent heat energy, thereby achieving the effects of energy conservation and emission reduction.

In some embodiments of the present invention, the maximum diameter of the upper tip 320 is greater than the maximum diameter of the flare 220. When the combustible gas is sprayed out and combusted in the second gap 420, the upper end head 320 is used for blocking the flame in the vertical direction, so that the flame is uniformly dispersed and combusted in the inclined direction of the flared opening 220, the heat energy is transferred to the ceramic radiation plate 200 for energy storage, and the utilization rate of the heat energy is high.

In some embodiments of the present invention, a communication groove 230 is provided between two adjacent flares 220 on the upper surface of the ceramic radiation plate 200. As shown in fig. 4, when viewed from above and below the ceramic radiation plate 200, the through holes 210 are distributed transversely at equal intervals and are divided into a plurality of transverse rows, the through holes 210 in adjacent transverse rows are distributed in a vertically staggered manner, the communication grooves 230 are respectively arranged between the adjacent through holes 210 in the same transverse row and between the flared openings 220 of the through holes 210 in adjacent transverse rows, and the communication grooves 230 communicate with the adjacent flared openings 220. In the combustible gas combustion process, part of gas flows along the direction of the communicating groove 230, so that the gas combustion efficiency is improved, and the ceramic radiation plate 200 uniformly absorbs heat energy generated by the combustion of the combustible gas by utilizing the communicating groove 230, so that the heat energy utilization rate is further improved.

In some embodiments of the present invention, the number of the air outlets 330 disposed on the body 310 is equal to the number of the communicating grooves 230 disposed on the single flaring 220, and the positions of the air outlets 330 correspond to the positions of the communicating grooves 230. As shown in fig. 4, when six communication grooves 230 are provided on each flare 220, six air outlet holes 330 are provided on the side wall of the single body 310. When the body 310 of the burner tip 300 is inserted into the through hole 210, the positions of the six air outlet holes 330 correspond to the positions of the six communicating grooves 230 one by one, so that after the combustible gas is sprayed out from the air outlet holes 330, the combustible gas is mainly combusted towards the direction of the communicating grooves 230 to generate flame, and the energy storage and release of the ceramic radiation plate 200 after heat energy absorption are further improved.

In some embodiments of the present invention, the air outlet holes 330 are disposed along a radial direction of the body 310 (not shown in the figure). The combustible gas is ejected from the air outlet holes 330 to the air-entraining gap 400 and rises to be combusted.

As shown in fig. 3, in some embodiments of the present invention, the air outlet holes 330 are disposed along the radial direction of the body 310 and in an inclined orientation. The combustible gas is ejected from the gas outlet 330, and the combustible gas is improved to flow upwards along the first gap 410 and enter the second gap 420 by utilizing the inclined and upward guiding function of the gas outlet 330, so that the flowing speed of the combustible gas is improved in turn.

As shown in fig. 2 and 3, in some embodiments of the present invention, the lower portion of the body 310 is fixedly installed in the through hole 210 by a metal fixing pipe 500. The metal fixing tube 500 plays a role in fixing, and hermetically connects the outer wall of the lower portion of the body 310 and the inner wall of the through hole 210 to ensure that all combustible gas enters the body 310, thereby avoiding leakage.

As shown in fig. 2 and 3, in some embodiments of the present invention, an insulation cotton 600 is disposed between the bottom of the installation cavity 120 and the ceramic radiation plate 200. The bottom of the ceramic radiation plate 200 is insulated by the heat insulation cotton 600, so that the heat of the ceramic radiation plate 200 is prevented from being directly transferred into the gas mixing cavity 110 through the partition plate.

In the description herein, references to the description of a particular embodiment or the like are intended to 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 do not necessarily 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.

While embodiments of the present 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

1. An infrared burner, comprising:

the inner part of the shell (100) is divided into a mixed air cavity (110) and a mounting cavity (120);

the ceramic radiation plate (200) is installed in the installation cavity (120) and is provided with a plurality of through holes (210), and the top ends of the through holes (210) are inverted cone-shaped flaring holes (220);

the burner (300) comprises a hollow columnar body (310) and an upper end (320) which is positioned at the top end of the body (310) and is in an inverted cone shape, a plurality of air outlet holes (330) are formed in the upper portion of the side wall of the body (310), the burner (300) is respectively installed on each through hole (210), the upper end (320) is positioned above the flaring opening (220), and an air introducing gap (400) is formed between the upper end (320) and the flaring opening (220) and between the inner wall of the through hole (210) and the outer wall of the body (310) at the corresponding position of the air outlet holes (330);

the gas flows along the gas mixing cavity (110), the through hole (210), the inside of the body (310), the gas outlet hole (330) and the air introducing gap (400) in sequence, and is combusted at the air introducing gap (400) which is correspondingly inclined between the upper end head (320) and the flaring (220).

2. The infrared burner as set forth in claim 1, wherein: the maximum diameter of the upper tip (320) is greater than the maximum diameter of the flare (220).

3. The infrared burner as set forth in claim 1, wherein: a communication groove (230) is formed between two adjacent flaring openings (220) on the upper surface of the ceramic radiation plate (200).

4. The infrared burner as set forth in claim 3, wherein: the number of the air outlet holes (330) formed in the body (310) is equal to the number of the communication grooves (230) formed in a single flaring (220), and the positions of the air outlet holes (330) correspond to the positions of the communication grooves (230).

5. The infrared burner as set forth in claim 1 or 3, wherein: the air outlet holes (330) are arranged along the radial direction of the body (310).

6. The infrared burner as set forth in claim 1 or 3, wherein: the air outlet holes (330) are arranged along the radial direction of the body (310) and in an inclined orientation.

7. The infrared burner as set forth in claim 1, wherein: the lower part of the body (310) is fixedly arranged in the through hole (210) through a metal fixing pipe (500).

8. The infrared burner as set forth in claim 1, wherein: and heat insulation cotton (600) is arranged between the bottom of the mounting cavity (120) and the ceramic radiation plate (200).