BURNER FOR A HEATER

Abstract

Disclosed is a burner for a heater. The burner includes a shell and an ejector assembly. The shell is provided with a circumferential surface, a gas chamber, a plurality of flame guide channels and an air intake. One end of each flame guide channel is communicated with the gas chamber, and other end of each flame guide channel intersects the circumferential surface. An extension direction of each flame guide channel is configured to form a non-perpendicular angle relative to the circumferential surface. The air intake is communicated with the gas chamber. The ejector assembly is detachably connected to the air intake, and is provided with an air passage hole communicated with the air intake.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202322215106.0,filed on Aug. 16, 2023, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present application relates to the technical field of heaters, and in particular to a burner for a heater.

BACKGROUND

The burner is a component in a heater that burns liquefied gas to provide heat radiation. The liquefied gas cylinder supplies liquefied gas to the burner through the gas supply system such as the pressure reducing valve and safety valve, and the valve nozzle inserted into the air intake pipe of the burner, so that the liquefied gas and air mix and spray out from the burner, and then ignite the liquefied gas to make the burner produce a radial flame. The heat generated by the flame increases the temperature of the air inside the heater and the infrared cover, and stably radiates heat to the outside.

However, the burners used in existing heaters are all round burners, and the centerline of the flame hole is distributed along the radius, so the flame also sprays out along the radial direction. It is easy to have the flame rush out of the mesh cover, which damages the heater and easily causes insufficient red heat.

SUMMARY

A main objective of the present application is to provide a burner for a heater, aiming to solve a problem that the conventional burner will easily damage the heater and result in inefficient red heat.

To achieve this objective, the burner proposed in the present application includes a shell and an ejector assembly. The shell is provided with a circumferential surface, a gas chamber, a plurality of flame guide channels and an air intake. One end of each flame guide channel is communicated with the gas chamber, and other end of each flame guide channel intersects the circumferential surface. An extension direction of each flame guide channel is configured to form a non-perpendicular angle relative to the circumferential surface. The air intake is communicated with the gas chamber. The ejector assembly is detachably connected to the air intake, and is provided with an air passage hole communicated with the air intake.

In an embodiment, the shell includes an upper shell and a lower shell. The upper shell is provided with a first accommodation recess and a plurality of first flame guide grooves communicated with the first accommodation recess. The lower shell is connected to the upper shell, and is provided with a second accommodation recess and a plurality of second flame guide grooves communicated with the second accommodation recess. The first accommodation recess and the second accommodation recess are configured to form the gas chamber; the plurality of first flame guide grooves and the plurality of second flame guide grooves are configured to form the plurality of flame guide channels.

In an embodiment, the upper shell is provided with a plurality of rivet joint protrusions, and the lower shell is provided with a plurality of rivet joint grooves. The plurality of rivet joint protrusions and the plurality of rivet joint grooves are cooperated to rivet the upper shell and the lower shell.

In an embodiment, the upper shell is provided with a first circumferential edge, and the plurality of rivet joint protrusions are arranged at the first circumferential edge with even intervals. The lower shell is provided with a second circumferential edge, and the plurality of rivet joint grooves are arranged at the second circumferential edge corresponding to the plurality of rivet joint protrusions.

In an embodiment, the upper shell is provided with a first circumferential edge. The plurality of first flame guide grooves are arranged and formed at the first circumferential edge with even intervals by punching, and the plurality of rivet joint protrusions are formed at the first circumferential edge by punching.

In an embodiment, the lower shell is provided with a second circumferential edge. The plurality of second flame guide grooves are arranged and formed at the second circumferential edge with even intervals by punching, and the plurality of rivet joint grooves are formed at the second circumferential edge by cutting.

In an embodiment, the plurality of flame guide grooves are arranged at the shell with intervals and evenly arranged along the circumferential surface to form a spiral arrangement.

In an embodiment, an angle formed between each flame guide channel and the circumferential surface ranges from 100 degrees to 120 degrees, and each angle has a same size.

In an embodiment, the ejector assembly includes an ejector tube, a burner support and an ejector tube support. The ejector tube is connected to the shell and provided with the air passage hole. The burner support is connected to the ejector tube for installing an ignition device. The ejector tube support is connected to the air passage hole for installing an electromagnetic valve.

In an embodiment, the burner further includes a pressing plate and an anti-backflame mesh. The pressing plate is in threaded connection with the shell. The anti-backflame mesh is connected between the shell and the pressing plate and covering the air intake.

In an embodiment, the burner further includes a graphitic gasket connected between the shell and the ejector assembly.

In the technical solution of the present application, the burner adopts an ejector assembly and a shell provided with a gas chamber, an air intake and flame guide channels; one end of each flame guide channel is communicated with the gas chamber, and the other end of each flame guide channel intersects the circumferential surface; an extension direction of each flame guide channel is configured to form a non-perpendicular angle relative to the circumferential surface; the air intake is communicated with the gas chamber; the ejector assembly is connected to the air intake. When the burner works, the liquefied gas is pumped from the ejector assembly to the gas chamber to be mixed with air. The mixture of liquefied gas and air enters the flame guide channels and is inclinedly ejected with the guidance of the flame guide channels. At this point, when the mixture of liquefied gas and air is ignited, spiral flame is generated at the burner. In this way, the range of the flame is increased in the circumstance of same area, the red heat effect of the infrared cover is enhanced, and the risk of the flame rushing out of the infrared cover is reduced, which prevents the flame from directly burning the infrared cover, prolongs the service life of the heater and reduces the appearance damage caused by the deformation of the infrared cover.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, drawings that are needed to illustrate the embodiments and the related art are simply introduced below. Obviously, drawings introduced below are just some of the embodiments in the present application. For those of ordinary skill in the art, other figures may be further obtained without creative efforts according to the structures shown in drawings below.

FIG. 1 is a schematic structural view of a burner according to an embodiment of the present application.

FIG. 2 is an exploded view of the burner according to an embodiment of the present application.

FIG. 3 is an exploded view of a shell of the burner according to an embodiment of the present application.

FIG. 4 is a schematic structural view of an upper shell of the burner according to an embodiment of the present application.

FIG. 5 is a schematic structural view of a lower shell of the burner according to an embodiment of the present application.

FIG. 6 is a schematic view of a rivet jointed shell according to an embodiment of the present application.

FIG. 7 is a schematic view of a shape of the flame of the burner according to an embodiment of the present application.

FIG. 8 is a schematic view of position of the flame of the burner according to an embodiment of the present application.

The realization of the purpose, the functional feature, and the advantage of the present application will be further illustrated referring to the drawings.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts should fall within the scope of the present application.

It should be noted that all the directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement, or the like of the components in a certain posture (as shown in the drawings). If the specific posture changes, the directional indication will change accordingly.

Besides, the descriptions associated with, e.g., “first” and “second,” in the present application are merely for descriptive purposes, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical feature. Therefore, the feature associated with “first” or “second” can expressly or implicitly include at least one such feature. In addition, the technical solutions of various embodiments can be combined with each other, but the combinations must be based on the realization of those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist, nor does it fall within the scope of the present application.

In combination with FIGS. 1 to 8, the burner according to an embodiment of the present application includes a shell 1 and an ejector assembly 2. The shell 1 is provided with a circumferential surface. The shell 1 is provided with a gas chamber 101, flame guide channels 102 and an air intake 103. One end of the flame guide channel 102 is communicated with the gas chamber 101, and the other end of the flame guide channel 102 intersects the circumferential surface. The extension directions of the flame guide channels 102 are configured to intersect the circumferential surface in a non-perpendicular manner. The air intake 103 is communicated with the gas channel 101. The ejector assembly 2 is detachably connected to the air intake 103. The ejector assembly 2 is provided with an air passage hole communicated with the air intake 103.

Specifically, the structure of the shell 1 is disc-shaped, the center of the shell 1 is provided with a small disc-shaped space, which is the gas chamber 101. The periphery of the shell 1 is provided with cylindrical channels, which are the flame guide channels 102. The extension directions of the flame guide channels 102 are configured to be tilted, which allows the gas is ejected with a certain angle relative to the radial direction of the shell 1 rather than in the radial direction.

Further, the center of the burner is provided with the air intake 103, where the ejector assembly 2 is connected to. The ejector assembly 2 is of a tube-shaped structure, one end of the ejector assembly 2 is provided with the air passage hole, while the other end is connected to the air intake 103 for connecting a gas supplier and providing a gas channel to allow gas to enter the gas chamber 101.

In this embodiment, when the burner works, the liquefied gas is pumped from the ejector assembly 2 to the gas chamber to be mixed with air. The mixture of liquefied gas and air enters the flame guide channels 102 and is inclinedly ejected with the guidance of the flame guide channels 102. At this point, when the mixture of liquefied gas and air is ignited, spiral flame is generated at the burner. In this way, the range of the flame is increased in the circumstance of same area, the red heat effect of the infrared cover 3 is enhanced, and the risk of the flame rushing out of the infrared cover 3 is reduced, which prevents the flame from directly burning the infrared cover 3, prolongs the service life of the heater and reduces the appearance damage caused by the deformation of the infrared cover 3.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the shell 1 includes an upper shell 11 and a lower shell 12. The upper shell is provided with a first accommodation recess 101A and first flame guide grooves 102A communicated with the first accommodation recess 101A. The lower shell 12 is connected to the upper shell 11. The lower shell is provided with a second accommodation recess 101B and second flame guide grooves 102B communicated with the second accommodation recess 101B. The first accommodation recess 101A and the second accommodation recess 101B together form the gas chamber 101, and the first flame guide grooves 102A and the second flame guide grooves 102B together form the flame guide channels 102.

Specifically, the upper shell 11 is a disc-shaped cover, the center of the upper shell 11 is provided with the first accommodation recess 101A, and the first accommodation recess 101A is dome-shaped. The upper shell 11 is also provided with first flame guide grooves 102A around the dome-shaped first accommodation recess 101A. The cross section of the first flame guide groove 102A is semi-circular. One end of the first flame guide groove 102A is extended to the first accommodation recess 101A, and the other end of the first flame guide groove 102A is extended to the edge of the upper shell 11.

Specifically, the lower shell 12 is also a disc-shaped cover, the center of the lower shell 12 is provided with the second accommodation recess 101B, and the second accommodation recess 101B is cylindrical or disc-shaped. The lower shell 12 is also provided with second flame guide grooves 102B around the disc-shaped second accommodation recess 101B. The cross section of the second flame guide groove 102B is semi-circular. One end of the second flame guide groove 102B is extended to the second accommodation recess 101B, and the other end of the second flame guide groove 102B is extended to the edge of the lower shell 12.

Further, the diameter of the upper shell 11 and that of the lower shell 12 are identical, so that when the upper shell 11 and the lower shell 12 are fitted, the first accommodation recess 101A at the center and the second accommodation recess 101B at the center are combined to form the gas chamber 101. The first flame guide groove 102A and the second flame guide groove that are of half circular groove type are combined to form the cylindrical flame guide channel 102. It can be understood that the edges of upper shell 11 and lower shell 12 are combined to form the circumferential surface of shell 1.

Through this embodiment, the shell 1 is made by combining two components, which makes the gas chamber 101 and the flame guide groove 102 being split from complex hollowed structures into groove shaped structures, and it can be understood that the groove shaped components are easier to process and manufacture than hollowed components.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the upper shell 11 is provided with rivet joint protrusions 111, and the lower shell 12 is provided with rivet joint grooves 121. The rivet joint protrusions 111 and the rivet joint grooves 121 cooperate to make the upper shell 11 and the lower shell 12 being rivet jointed.

Specifically, the upper shell 11 is made of metal, and the entire shape is disc-like. When cutting the edge of upper shell 11, a protruding sheet-shaped structure is cut outwardly, which is the rivet joint protrusion 111. The sheet-shaped structure is bent to form a 90 degrees angle relative to the upper shell 11. Similarly, the lower shell is also made of metal, and the entire shape is also disc-like. When cutting the edge of lower shell 12, a notch is cut inwardly, which is the rivet joint groove 121.

Further, the thickness of rivet joint protrusion 111 fits the depth of rivet joint groove 121. The width of rivet joint protrusion 111 fits the width of rivet joint groove 121. Multiple rivet joint protrusions 111 and multiple rivet joint grooves 121 are corresponded one by one.

Through this embodiment, the upper shell 11 and the lower shell 12 are connected by rivet joint, which prevents that the deformation of flame guide channel 102 caused by poor welding position or welding technics in the welding process affecting the shape of flame. In addition, the rivet joint groove 121 plays the role of positioning, which makes the fitting position of the first flame groove 102A and the second flame guide groove 102B will not have large error, and prevents the deformation of flame guide channel 102.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the upper shell 11 is provided with a first circumferential edge, and multiple rivet joint protrusions 111 are evenly arranged at the first circumferential edge with intervals. The lower shell 12 is provided with a second circumferential edge, and multiple rivet joint grooves 121 are arranged at the second circumferential edge corresponding to the rivet joint protrusions 111.

Specifically, the outer edge of upper shell 11 is the first circumferential edge, and multiple rivet joint protrusions 111 are arranged along the edge with even intervals. One or more flame guide channels 102 are provided between two rivet joint edges. The outer edge of lower shell 12 is the second circumferential edge, where the rivet joint grooves 121 are provided corresponding to the positions of rivet joint protrusions 111. Similarly, one or more flame guide channels 102 are provided between two rivet joint grooves 121.

Through this embodiment, multiple rivet joint protrusions 111 and multiple rivet joint grooves 121 are fitted, so that the first circumferential edge of upper shell 11 and the second circumferential edge of lower shell 12 are closely fitted and connected, which avoids a leakage occurring inside the flame guide channel 102, and prevents the mixture of air and gas from leaking from other positions and affecting the shape of flame.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the upper shell 11 is provided with a first circumferential edge; the first flame guide grooves 102A arranged with even intervals and the rivet joint protrusions 111 are formed at the first circumferential edge by punching. The lower shell 12 is provided with a second circumferential edge; the second flame guide grooves 102B arranged with even intervals are formed at the second circumferential edge by punching; the rivet joint grooves 121 are formed at the second circumferential edge by cutting.

Specifically, the upper shell 11 is made of metal, and the whole structure of which is made by punching one round sheet. The center of is punched to form the first accommodation recess 101A, and the edge is punched to form the first flame guide grooves 102A with intervals. That is, the upper shell 11 is integrally formed. It can be understood that the lower shell 12 is also made of metal, and the whole structure of which is made by punching one round sheet. The center is punched to form the second accommodation recess 101B, and the edge is punched to form the second flame guide grooves 102B, whereby the lower shell 12 is also integrally formed.

Further, a protruding sheet-shaped structure is formed by outwardly cutting the upper shell 11 between two first flame guide grooves 102A, which is the rivet joint protrusion 111. The sheet-shaped structure is bent to form a 90 degrees angle relative to the upper shell 11. Similarly, a notch is formed by inwardly cutting the lower shell 12 between two second flame guide grooves 102B when cutting the edge of lower shell 12, which is the rivet joint groove 121.

Through this embodiment, after the upper shell 11 and the lower shell 12 being combined to form the shell 1, the rivet joint protrusions 111 are inwardly pressed and folded to clamp the upper shell 11 with the lower shell 12, in which complex procedures such as welding are not needed, whereby the upper shell 11 and the lower shell 12 can be conveniently fitted and combined.

In combination with FIGS. 1 to 8, in an embodiment of the present application, multiple flame guide channels 102 are arranged at the shell 1 with intervals, and are evenly arranged along the circumferential surface to form a spiral arrangement. The angle between each flame guide channel 102 and the circumferential surface ranges from 100 degrees to 120 degrees and has the same size.

Through this embodiment, the mixture of gas and air is evenly and orderly ejected form the circumferential surface of the shell 1 in a certain angle, and the generated flame can also achieve a good red heat effect without affecting the infrared cover 3.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the ejector assembly 2 includes an ejector tube 21, a burner support 22 and an ejector tube support 23. The ejector tube 21 is connected to the shell 1 and provided with an air passage hole. The burner support 22 is connected to the ejector tube 21 for installing an ignition device. The ejector tube support 23 is connected to the air passage hole for installing an electromagnetic valve.

Specifically, the ejector tube 21 is a tube-shaped component, one end of the ejector tube 21 is threaded connection with the air intake 103 of the lower shell 12, so that the inside of the tube is communicated with the gas chamber 101; the other end of the ejector tube 21 is extended and provided with the air passage hole for connecting a gas supplier such a gas cylinder and providing an air intake channel communicating with the gas chamber 101. The burner support 22 is provided at a position of the ejector tube 21 close to the shell 1. The burner support 22 is in threaded connection with the ejector tube 21. The ejector tube support 23 is provided at the air passage hole.

Further, three burner supports 22 are provided and are evenly arranged around the ejector tube 21 for installing an ignition device. One end of the ignition device is extended adjacent to the circumferential surface of shell 1. The ignition device can generate electric spark to ignite the mixture of gas and air ejected from the flame guide channels 102. The ejector tube support 23 is installed with an electromagnetic valve, the electromagnetic valve is connected to the ejector tube 21 and the gas supplier, so that the air passage hole is controlled to be closed or open to control the air intake of the gas chamber 101.

Through this embodiment, an ignition device and an electromagnetic valve can be installed to the burner. When the electromagnetic valve controls the air passage hole to be open, the gas enters the gas chamber 101 and is ejected from the flame guide channels 102. The ignition device ignites the mixture of air and gas to burn and continuously generates heat. When the electromagnetic valve is turned off, the path for the gas is blocked, and thus the heater is turned off.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the burner further includes a pressing plate 24 and an anti-backflame mesh 25. The pressing plate 24 is in threaded connection with the shell 1. The anti-backflame mesh 25 is connected between the shell 1 and the pressing plate 24 and covers the air intake 103.

Specifically, the air intake 103 of the lower shell 12 is provided with a recess where the anti-backflame mesh 25 is covered at. The pressing plate 24 is provided on the anti-backflame mesh 25 for fixing. The pressing plate 24 is provided with a threaded hole. The threaded holes of the pressing plate 23, the lower shell 12 and the ejector tube 21 cooperate and are in threaded connection with the air intake 103 of the lower shell 12. The recess is beneficial for limiting the position of pressing plate 24, which prevents the pressing plate 24 from displacing, producing a gap between the anti-backflame mesh 25 and the lower shell 12 of the burner and exposing the air passage hole.

Further, the anti-backflame mesh 25 is 40-mesh woven mesh.

When the pressure inside the gas chamber 101 is not high enough, the flame will rush into the gas chamber. But through this embodiment, when the flame further rushes into the ejector tube 21, the dense mesh of anti-backflame 25 can put out the flame to prevent a further burning.

In combination with FIGS. 1 to 8, in an embodiment of the present application, the burner further includes a graphitic gasket 26 connected between the shell 1 and the ejector assembly 2.

Specifically, the graphitic gasket 26 is ring-shaped, and the center hole communicates the air intake 103 and the air passage hole, whereby the ejector tube 21 and the lower shell 12 can be completely partitioned.

In this embodiment, the graphitic gasket 26 has a good heat-proof performance, which allows that when the burner produces flame, the heat generated by the flame is basically only transmitted to the shell 1 and will not be further transmitted to the ejector tube 21. In this way, electric components or other structures connected to the ejector tube 21 will not be affected, and the durability and stability of the whole control device and the structure is improved.

The above-mentioned embodiments are only some embodiments of the present application, and are not intended to limit the scope of the present application. Any equivalent structural variation made by using the content of the description and the accompanying drawings of the present application, direct or indirect application on other related technical fields, should all fall within the scope of the present application.

Claims

1. A burner for a heater, comprising: a shell provided with a circumferential surface, a gas chamber, a plurality of flame guide channels and an air intake; wherein one end of each flame guide channel is communicated with the gas chamber, and other end of each flame guide channel intersects the circumferential surface; an extension direction of each flame guide channel is configured to form a non-perpendicular angle relative to the circumferential surface; the air intake is communicated with the gas chamber; andan ejector assembly detachably connected to the air intake and provided with an air passage hole communicated with the air intake.

2. The burner according to claim 1, wherein the shell comprises: an upper shell, provided with a first accommodation recess and a plurality of first flame guide grooves communicated with the first accommodation recess; anda lower shell, connected to the upper shell, and provided with a second accommodation recess and a plurality of second flame guide grooves communicated with the second accommodation recess;wherein the first accommodation recess and the second accommodation recess are configured to form the gas chamber; the plurality of first flame guide grooves and the plurality of second flame guide grooves are configured to form the plurality of flame guide channels.

3. The burner according to claim 2, wherein the upper shell is provided with a plurality of rivet joint protrusions, and the lower shell is provided with a plurality of rivet joint grooves; the plurality of rivet joint protrusions and the plurality of rivet joint grooves are cooperated to rivet the upper shell and the lower shell.

4. The burner according to claim 3, wherein the upper shell is provided with a first circumferential edge, and the plurality of rivet joint protrusions are arranged at the first circumferential edge with even intervals; the lower shell is provided with a second circumferential edge, and the plurality of rivet joint grooves are arranged at the second circumferential edge corresponding to the plurality of rivet joint protrusions.

5. The burner according to claim 3, wherein the upper shell is provided with a first circumferential edge, the plurality of first flame guide grooves are arranged and formed at the first circumferential edge with even intervals by punching, and the plurality of rivet joint protrusions are formed at the first circumferential edge by punching; and/or the lower shell is provided with a second circumferential edge, the plurality of second flame guide grooves are arranged and formed at the second circumferential edge with even intervals by punching, and the plurality of rivet joint grooves are formed at the second circumferential edge by cutting.

6. The burner according to claim 1, wherein the plurality of flame guide channels are arranged at the shell with intervals and evenly arranged along the circumferential surface to form a spiral arrangement.

7. The burner according to claim 6, wherein an angle formed between each flame guide channel and the circumferential surface ranges from 100 degrees to 120 degrees, and each angle has a same size.

8. The burner according to claim 1, wherein the ejector assembly comprises: an ejector tube connected to the shell and provided with the air passage hole;a burner support connected to the ejector tube for installing an ignition device; andan ejector tube support connected to the air passage hole for installing an electromagnetic valve.

9. The burner according to claim 8, further comprising: a pressing plate in threaded connection with the shell; andan anti-backflame mesh connected between the shell and the pressing plate and covering the air intake.

10. The burner according to claim 8, further comprising a graphitic gasket connected between the shell and the ejector assembly.