TWI802819B - Burner for gas water heater - Google Patents

Abstract

A burner for gas water heater includes a burner body, a gas tube, a gas intake, and a plurality of flame apertures. The gas intake is formed at one side of the burner body. The flame apertures are formed on a top side of the burner body. The gas tube is disposed in the burner body, and is fluidly communicated with the flame apertures and the gas intake. A width of the flame apertures which is close to two ends of the burner is smaller, and a width of the flame apertures which is close to a center of the burner is larger. The flame from the flame apertures close to two ends of the burner is smaller, and the flame from the flame apertures close to two ends of the burner is larger, so as to provide a better thermal insulation effect, and can avoid affecting an outer housing of the burner by high temperature.

Description

Burner for gas water heater

The invention relates to a burner, especially a burner which is applied to a gas water heater and has better heat insulation effect.

The combustion device of the existing gas water heater includes a plurality of burners (fire rows) arranged side by side, each burner has a gas inlet and a plurality of main flame holes, the gas inlet is located on one side of the burner, and the main flames Holes are arranged on the top surface of the burner, and a gas passage is provided in the burner to communicate with the main flame holes and the gas inlet. The gas can be fed through the gas inlet and mixed with the air, and then a flame is generated through the main flame hole. Secondary mix. These burners are usually installed in a shell, so when the burner produces flames in these main flame holes, the high temperature generated by the flames near the two ends of the burner will easily affect the outer shell of the burner, making the shell due to deformed or damaged by high temperature.

The technical problem to be solved by the present invention is to provide a burner for gas water heaters in view of the deficiencies in the prior art, which has a better heat insulation effect and can reduce the impact of high temperature on the outer casing of the burner, so as to avoid deformation of the casing due to high temperature or damaged.

In order to solve the above technical problems, the present invention provides a burner for a gas water heater, comprising: a burner body, the burner body has two side plates and a top plate, the top plate is arranged between the upper ends of the two side plates, the combustion The burner body extends for a predetermined length along a longitudinal direction, and the direction perpendicular to the longitudinal direction is a transverse direction, and the dimension of the burner body in the longitudinal direction is greater than the dimension in the transverse direction; A gas channel, the gas channel is arranged between the two side plates and the top plate of the burner body; a gas inlet, the gas inlet is arranged on one side of the burner body; and a plurality of main flame holes, the The main flame holes are arranged on the top plate at intervals, and the main flame holes run through the opposite sides of the top plate. The dimension of each main flame hole along the longitudinal direction is defined as width, and each main flame hole is The dimension in the width direction is defined as length, the length of the main flame hole is greater than the width of the main flame hole, and the gas channel communicates with the gas inlet and the main flame holes; wherein the top plate is divided into A middle part and two side parts, the two side parts are respectively located at the opposite ends of the middle part, the main flame holes are distributed in the middle part and the side parts of the top plate, and the The width of the main flame holes is smaller than the width of the main flame holes arranged in the middle of the top plate.

In order to solve the above technical problems, the present invention also provides a burner for a gas water heater, comprising: a burner body, the burner body has two side plates and a top plate, the top plate is arranged between the upper ends of the two side plates, the The burner body extends for a predetermined length along a longitudinal direction, and a direction perpendicular to the longitudinal direction is a transverse direction, and the dimension of the burner body in the longitudinal direction is greater than the dimension in the transverse direction; A gas channel, the gas channel is set between the two side plates and the top plate of the burner body; a gas inlet, the gas inlet is set on one side of the burner body; a plurality of main flame holes, the The main flame holes are arranged on the top plate at intervals, and the main flame holes run through the opposite sides of the top plate. The dimension of each main flame hole along the longitudinal direction is defined as width, and each main flame hole is The size in the width direction is defined as length, the length of the main flame hole is greater than the width of the main flame hole, the gas passage communicates with the gas inlet and the main flame holes; and two auxiliary flame holes, the two auxiliary flame holes Located on both sides of the top plate, the two auxiliary flame holes are narrow and long, the two auxiliary flame holes extend along the longitudinal direction, and the gas channel communicates with the gas inlet and the two auxiliary flame holes; wherein the top plate is along the The longitudinal direction is divided into a middle part and two side end parts, and the two side end parts are located at opposite ends of the middle part respectively, and the main flame holes are distributed in the middle part and side end parts of the top plate, and are arranged The width of the main flame holes at the edge of the top plate is smaller than the width of the main flame holes at the middle of the top plate.

The beneficial effects of the present invention lie in that the burner for a gas water heater provided by the present invention includes a burner body, a gas channel, a gas inlet and a plurality of main flame holes. The top plate of the burner body is divided into a middle part and two end parts along the longitudinal direction. The main flame holes are distributed in the middle part and the end parts of the top plate. The width is smaller than the width of the main flame holes arranged in the middle part of the top plate. Therefore, the width of the main flame holes arranged at the edge of the top plate is smaller, so that the flame generated by the main flame holes arranged at the edge of the top plate is smaller, that is, the flame near the burner The flames produced by the main flame holes at both ends are smaller and the temperature is lower, so they have a better heat insulation effect and can reduce the impact of high temperature on the outer casing of the burner, so as to avoid deformation or damage of the casing due to high temperature.

In addition, the present invention has protruding reinforcing ribs on each flame retaining plate, which can be used to reduce the deformation caused by the processing of the flame retaining plate and maintain the distance from the burner body, so as to ensure a good flame retaining effect of the auxiliary flame.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.

The following are specific examples to illustrate the implementation methods disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.

[Example]

Please refer to Fig. 1 to Fig. 4, the present invention provides a burner for gas water heater, the burner is preferably made of metal material, the burner includes a burner body 1, a gas channel 2, a gas Inlet 3 and multiple main flame holes 4.

The burner body 1 has two side plates 11 and a top plate 12. The two side plates 11 are roughly square plates. The top plate 12 is arranged between the upper ends of the two side plates 11. The top plate 12 can be connected to the The upper end of the two side plates 11, the top plate 12 extends a predetermined length, so that the top plate 12 is in the shape of a strip, and the top plate 12 can be a straight plate or have an appropriate curvature. The other three side edges of the two side panels 11 without the top panel 12 can be properly sealed. The burner body 1 extends for a predetermined length along a longitudinal direction A, and a direction perpendicular to the longitudinal direction A is a transverse direction B. The size (length) of the burner body 1 in the longitudinal direction A is It is larger than the dimension (width) in the widthwise direction B.

The gas passage 2 is arranged between the two side plates 11 and the top plate 12 of the burner body 1 (as shown in FIGS. 5 to 7 ), and the gas inlet 3 is arranged on one side of the burner body 1 . These main flame holes 4 are arranged at intervals on the top plate 12 , and these main flame holes 4 run through the opposite two surfaces (top and bottom) of the top plate 12 , so that these main flame holes 4 can communicate with the gas passage 2 . These main flame holes 4 can be formed into a group in multiples (for example, two, three or four), and the same group of these main flame holes 4 are close to each other.

The main flame holes 4 can be strip-shaped, and the main flame holes 4 can be parallel to each other, and the main flame holes 4 can be rectangular or other shapes, which are not limited. The size of each main flame hole 4 along the longitudinal direction A is defined as width W (as shown in Figure 3), and the size of each main flame hole 4 along the transverse direction B is defined as length L. The main flame hole The length L of 4 is greater than the width W of the main flame hole 4, so that these main flame holes 4 form a long and narrow shape (strip shape) along the width direction B.

The top plate 12 is divided into a middle part C and two side end parts D along the longitudinal direction A, and the two side end parts D are respectively located at opposite ends of the middle part C, and the main flame holes 4 are distributed in the middle part C of the top plate 12 And the edge part D. The width W of these main flame holes 4 arranged at the edge portion D of the top plate 12 is small, that is to say, the width W of these main flame holes 4 arranged at the edge portion D of the top plate 12 can be appropriately reduced. The width W of the main flame holes 4 at the edge portion D of the top plate 12 is preferably 0.5 mm to 0.65 mm to form an optimized size. The width W of the main flame holes 4 arranged in the middle part C of the top plate 12 is relatively large, and the width W of the main flame holes 4 arranged in the middle part C of the top plate 12 is preferably more than 0.65mm, so that the The width W of the main flame holes 4 at the end portion D of the top plate 12 is smaller than the width W of the main flame holes 4 arranged at the middle portion C of the top plate 12 . Preferably, the number of the main flame holes 4 arranged at each edge portion D of the top plate 12 is 2 to 6, such as 2, 3, 4, 5 or 6, which can play a role in Better heat insulation effect.

Since the width W of the main flame holes 4 arranged at the edge portion D of the top plate 12 is smaller than the width W of the main flame holes 4 arranged at the middle portion C of the top plate 12, the The flames produced by the main flame holes 4 at the edge portion D are small, that is, the flames generated by the main flame holes 4 near the two ends of the burner are relatively small.

The gas passage 2 communicates with the gas inlet 3 and the main flame holes 4 , that is, one end of the gas passage 2 communicates with the gas inlet 3 , and the other end of the gas passage 2 communicates with the main flame holes 4 . The gas can be fed in through the gas inlet 3, and mixed with air, and then the flame is generated through the main flame holes 4, the gas is mixed with the air for the first time at the gas inlet 3, and the incompletely burned gas is then mixed with the air. These main flame holes 4 are mixed with air for the second time.

In addition, the burner body 1 can also be provided with two auxiliary flame holes 5, the two auxiliary flame holes 5 are located on both sides of the top plate 12, the two auxiliary flame holes 5 are narrow and long, and the two auxiliary flame holes 5 are along the longitudinal direction. A stretch. In this embodiment, the two side plates 11 of the burner body 1 are respectively connected with a flame holding plate 13 near the upper end, and the two flame holding plates 13 are located on the outside of the two side plates 11 respectively, and two auxiliary flame holes 5 are formed on the two side plates 11 Between the two flame retaining plates 13 , that is, a flame retaining plate 13 is provided corresponding to the outside of each side plate 11 , and an auxiliary flame hole 5 is formed between each side plate 11 and the outer flame retaining plate 13 . The gas channel 2 communicates with the gas inlet 3 and two auxiliary flame holes 5, that is, the other end of the gas channel 2 also communicates with the two auxiliary flame holes 5, and the other end of the gas channel 2 can pass through the two side plates respectively. The through hole 14 on the 11 communicates with the two auxiliary flame holes 5. The gas can be fed in through the gas inlet 3, mixed with air, and then passed through the two auxiliary flame holes 5 to generate flames, and the flames formed on the auxiliary flame holes 5 can be used to provide ignition and remain formed on the main flame holes 4 main flame. In this embodiment, a reinforcing rib 15 is provided on the two flame retaining plates 13 near the upper ends, and each of the two reinforcing ribs 15 has an inner surface 151 and an outer surface 152 (as shown in FIG. 5 ). 151 and the outer surface 152 both extend outward and protrude from the flame retainer 13 , and the inner surface 151 and the outer surface 152 can be concave arc surfaces and convex arc surfaces respectively. The two reinforcing ribs 15 respectively protrude from the outer sides of the two flame retaining plates 13 , and the two reinforcing ribs 15 extend horizontally for a predetermined length, which can be used to increase the strength of the two flame retaining plates 13 .

A plurality of said burners can be combined side by side to form a combustion device, which can be installed in a shell 6 (as shown in Figure 6 and Figure 7), so as to be installed in a gas water heater, and the combustion device can be It is installed under the water tank, so that the burning device can be used to heat the water in the water tank, so as to generate hot water for consumers.

[Advantageous Effects of Embodiment]

The beneficial effects of the present invention lie in that the burner for a gas water heater provided by the present invention includes a burner body, a gas channel, a gas inlet and a plurality of main flame holes. The top plate of the burner body is divided into a middle part and two end parts along the longitudinal direction. The main flame holes are distributed in the middle part and the end parts of the top plate. The width is smaller than the width of the main flame holes arranged in the middle part of the top plate. Therefore, the width of the main flame holes arranged at the edge of the top plate is smaller, so that the flame generated by the main flame holes arranged at the edge of the top plate is smaller, that is, the flame near the burner The flames generated by the main flame holes at both ends are smaller and the temperature is lower, so they have better heat insulation effect, which can reduce the impact of high temperature on the outer casing of the burner, so as to avoid deformation or damage of the casing due to high temperature. damage.

In addition, the present invention has protruding reinforcing ribs on each flame retaining plate, which can be used to reduce the deformation caused by the processing of the flame retaining plate and maintain the distance from the burner body, so as to ensure a good flame retaining effect of the auxiliary flame.

The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

1: Burner body 11: side panel 12: Top plate 13: Flame retainer 14: Through hole 15: Rib 151: inner surface 152: Outer surface 2: Gas channel 3: Gas inlet 4: Main flame hole 5: Auxiliary flame hole 6: shell A:Longitudinal direction B: Horizontal width direction C: middle part D: edge part W: width L: Length

Fig. 1 is a perspective view of a burner for a gas water heater of the present invention.

Fig. 2 is a front view of a burner for a gas water heater of the present invention.

Fig. 3 is a top view of a burner for a gas water heater of the present invention.

Fig. 4 is a side view of a burner for a gas water heater of the present invention.

Fig. 5 is a sectional view along line V-V of Fig. 2 .

Fig. 6 is a perspective view of a plurality of combustors assembled and installed in the casing according to the present invention.

Fig. 7 is a detailed view of part VII of Fig. 6 .

1: Burner body

11: side panel

12: Top plate

13: Flame retainer

15: Rib

2: Gas channel

3: Gas inlet

4: Main flame hole

5: Auxiliary flame hole

A:Longitudinal direction

B: Horizontal width direction

Claims (3)

A burner for a gas water heater, comprising: a burner body, the burner body has two side plates and a top plate, the top plate is arranged between the upper ends of the two side plates, and the burner body extends along a longitudinal direction for predetermined The length of the length, the direction perpendicular to the longitudinal direction is a transverse direction, the size of the burner body in the longitudinal direction is greater than the dimension in the transverse direction; a gas channel, the gas channel is arranged on Between the two side plates and the top plate of the burner body; a gas inlet, the gas inlet is arranged on one side of the burner body; a plurality of main flame holes, the main flame holes are arranged on the top plate at intervals, The main flame holes run through the opposite sides of the top plate, the dimension of each main flame hole along the longitudinal direction is defined as width, and the dimension of each main flame hole along the transverse width direction is defined as length, the main flame hole The length of the flame hole is greater than the width of the main flame hole, and the gas passage communicates with the gas inlet and the main flame holes; and two auxiliary flame holes are located on both sides of the top plate, and the two auxiliary flame holes The flame hole is long and narrow, the two auxiliary flame holes extend along the longitudinal direction, and the gas channel communicates with the gas inlet and the two auxiliary flame holes; wherein the top plate is divided into a middle part and a Two side end parts, the two side end parts are respectively located at the opposite ends of the middle part, the main flame holes are distributed in the middle part and the edge parts of the top plate, and the main flame holes arranged at the edge parts of the top plate The width is smaller than the width of the main flame holes arranged in the middle of the top plate; the two side plates of the burner body are connected to a flame holding plate near the upper end, and the two flame holding plates are respectively located on the outside of the two side plates, The two auxiliary flame holes are formed between the two side plates and the two flame retaining plates, each of the two flame retaining plates is provided with a reinforcing rib near the upper end, and the two reinforcing ribs respectively protrude from the outer sides of the two flame retaining plates , The two reinforcing ribs extend horizontally, and each of the two reinforcing ribs has an inner surface and an outer surface, and the inner surface and the outer surface both extend outward and protrude from the flame holding plate. The burner for a gas water heater according to claim 1, wherein the width of the main flame holes arranged at the edge of the top plate is 0.5mm to 0.65mm, and the width of the main flame holes arranged at the middle of the top plate The width of the hole is 0.65 mm or more. The burner for a gas water heater as claimed in Claim 1, wherein the number of the main flame holes arranged at each edge of the top plate is 2 to 6.

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