Combustor

Abstract

The utility model provides a combustor, and belongs to the technical field of combustors. The burner solves the problems that a burner of an existing burner is large in occupied external space and loose in structure. The burner comprises a furnace end and an air supply pipe fixedly connected to the bottom of the furnace end, a plurality of circles of burning holes are formed in the circumferential edge of the furnace end, the air supply pipe is communicated with the burning holes, a big fire gas connector is connected to the air supply pipe, a small fire gas connector is further connected to the air supply pipe, the burner further comprises a small fire pipe, and the small fire pipe is located in the air supply pipe and the furnace end. The gas inlet end of the small fire tube is connected with the small fire gas connector, and the gas outlet end of the small fire tube extends into the furnace end and is located in the center of the multiple circles of combustion holes. The burner has the advantages that the external space occupied by the burner is small, and the structure is compact.

Description

Technical Field

[0001] This utility model belongs to the field of burner technology and relates to a burner. Background Technology

[0002] A gas stove includes a burner, which consists of a burner head and an air supply pipe. The air supply pipe delivers a mixture of gas and air to the burner head for combustion.

[0003] Existing gas stove burners, such as the fan-mixed burner disclosed in Chinese patent literature [Patent No.: 201420333181.5; Authorization Announcement No.: CN203907611U], include an inner burner and an outer burner, both shaped like bowls. The inner burner is located inside the outer burner, and the top of the outer burner is fixedly connected to the top of the inner burner via a connecting strip. An inner cavity is formed between the outer burner and the inner burner. The bottom or side of the outer burner has a through ventilation hole. The inner burner has at least one ring of upward-sloping swirl spray holes, and the connecting strip has at least one ring of jet spray holes. The swirl spray holes are connected to the inner cavity, and the jet spray holes are also connected to the inner cavity.

[0004] This type of burner includes an inner burner body, an outer burner body, and a fan duct. The inner and outer burner bodies form a large combustion chamber, and an ignition chamber is located on the outer periphery of the outer burner body. The ignition chamber is used for ignition. The inner burner body, outer burner body, and ignition chamber together form the burner head. This results in the burner head of this type of structure occupying a large external space and having a loose structure. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a burner that solves the technical problem of how to minimize the external space occupied by the burner head and achieve a compact structure.

[0006] The objective of this utility model can be achieved through the following technical solution: A burner includes a furnace head and an air supply pipe fixed to the bottom of the furnace head. The furnace head has several rings of combustion holes along its circumferential edge. The air supply pipe is connected to the combustion holes and a large-fire gas connector is connected to the air supply pipe. The burner is characterized in that a small-fire gas connector is also connected to the air supply pipe. The burner also includes a small-fire tube, which is located in the air supply pipe and the furnace head. The air inlet end of the small-fire tube is connected to the small-fire gas connector, and the air outlet end of the small-fire tube extends into the furnace head and is located at the center of the several rings of combustion holes.

[0007] The small-flame gas connector has a small air intake, while the large-flame gas connector has a large air intake. An external fan is connected to the air supply duct. In operation, the small-flame gas connector is opened, and the large-flame gas connector is closed, allowing a small amount of gas to enter the burner head through the small-flame gas connector and the small flame tube. The gas is then ignited at the outlet of the small flame tube to produce an open flame. Subsequently, the large-flame gas connector is opened and the fan is activated, allowing a large amount of gas to pass through the large-flame gas connector and the air supply duct before being ejected from the combustion holes. The gas ignites upon contact with the open flame, thus achieving combustion and heating. The small-flame gas connector of this burner is installed on the air supply duct, and the small flame tube is located within the air supply duct and burner head, preventing the small flame tube from being exposed and minimizing the external space occupied by the burner head, resulting in a relatively small and compact overall structure. The outlet of the small flame tube is located at the center of several concentric rings of combustion holes, ensuring better ignition of the gas ejected from the combustion holes.

[0008] In one type of burner described above, a small flame cap is fitted onto the outlet end of the small flame tube. Several small flame holes are formed in the circumferential sidewall of the small flame cap. The small flame gas connector is connected to the small flame holes via the small flame tube. The arrangement of the small flame cap and small flame holes alters the direction of the flame, directing it outwards and allowing for better ignition of the gas ejected from the combustion holes.

[0009] In one type of burner described above, the air supply duct is at a right angle. The high-flame gas connector is located at the air inlet end of the air supply duct, and the low-flame gas connector is located at the air outlet end of the air supply duct. The low-flame gas connector supplies less gas at a slower speed and is closer to the burner head, allowing it to be ignited more quickly. The high-flame gas connector supplies more gas and is farther from the burner head, allowing it to be better accelerated by the air blown by the fan. This results in the gas being ejected from the combustion hole more quickly, forming a flame and achieving a better heating effect.

[0010] In one type of burner described above, a baffle plate is rotatably installed at the air inlet end of the air supply pipe, and the high-fire gas connector is located between the baffle plate and the low-fire gas connector. In actual use, the wind force and on / off state can be controlled by external manipulation of the baffle plate; alternatively, when the fan is started, the baffle plate can be blown horizontally to facilitate gas delivery, and when the fan stops, the baffle plate can remain vertical under its own weight to prevent gas leakage.

[0011] In one type of burner described above, the air inlet end of the air supply duct has a pair of symmetrically arranged mounting seams. The inner ends of the mounting seams extend outwards to form large-diameter rotating holes, and the outer ends of the mounting seams penetrate the end face of the air inlet end of the air supply duct. The baffle plate has a pair of rotating plates, which can move along the mounting seams and enter the rotating holes. The rotating plates are rotatably mounted in the rotating holes. Applying a certain external force can push the rotating plates along the mounting seams and into the rotating holes. Without applying external force, the rotating plates cannot fall out of the rotating holes, making the baffle plate easy to install and allowing it to rotate.

[0012] In one type of burner described above, the combustion orifice includes a jet nozzle located on the outer ring and a swirl nozzle located on the inner ring. The jet nozzle is arranged vertically, and the swirl nozzle is inclined inward and upward along the vertical direction and deflected horizontally. This structure results in a better flame pattern and improved combustion effect.

[0013] In one type of burner described above, the burner head includes a bottom shell, a furnace core fixedly connected to the bottom shell, and an energy-concentrating ring fixedly connected to the bottom shell. The energy-concentrating ring is made of stainless steel or cast iron. The combustion holes are located at the circumferential edge of the furnace core. A gas chamber is formed between the bottom shell and the furnace core. The air supply pipe is connected to the combustion holes through the gas chamber. The small flame tube is partially located in the gas chamber, and its outlet end passes through the furnace core. This structure allows for a reasonable burner head setup and arrangement of the small flame tubes. The stainless steel energy-concentrating ring is durable and extends the burner head's lifespan. The cast iron energy-concentrating ring is inexpensive. The energy-concentrating ring also concentrates the flame, resulting in high energy efficiency and a high heat load, while simultaneously reducing noise.

[0014] In one of the burners described above, the burner head has a first mounting hole for installing an ignition needle and a second mounting hole for installing a thermocouple sensing needle. The ignition needle is configured to automatically ignite the flame, and the thermocouple sensing needle is used to measure the temperature.

[0015] Compared with the prior art, the burner provided by this utility model has the following advantages:

[0016] 1. The small flame gas connector of this burner is installed on the air supply pipe. The small flame tube is located between the air supply pipe and the burner head, so that the small flame tube is not exposed, the external space occupied by the burner head is small, and the overall structure of the burner head is relatively small and compact.

[0017] 2. The burner core is made of stainless steel, which makes the core less prone to damage and extends its service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the burner.

[0019] Figure 2 This is a cross-sectional view of the overall structure of the burner.

[0020] Figure 3 This is a cross-sectional view of the overall structure of this furnace head.

[0021] Figure 4 This is a schematic diagram of the overall structure of the furnace core.

[0022] In the diagram, 1. Burner head; 11. Bottom shell; 12. Furnace core; 13. Gas chamber; 14. First mounting hole; 15. Second mounting hole; 16. Energy-concentrating ring; 2. Air supply pipe; 21. Mounting seam; 211. Rotating hole; 3. Combustion hole; 31. Injection hole; 32. Swirl injection hole; 4. High flame gas connector; 5. Low flame gas connector; 6. Low flame tube; 7. Low flame cap; 71. Low flame hole; 8. Wind baffle; 81. Rotating plate. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figure 1 , Figure 2 As shown, this burner includes a burner head 1, an air supply pipe 2, a high-fire gas connector 4, a low-fire gas connector 5, a low-fire pipe 6, a low-fire cap 7, and a baffle plate 8.

[0025] like Figure 3 , Figure 4 As shown, the burner head 1 includes a bottom shell 11, a furnace core 12, and an energy-concentrating ring 16. The furnace core 12 is fixedly connected to the bottom shell 11, and the energy-concentrating ring 16 is fixedly connected to the bottom shell 11. A gas combustion chamber 13 is formed between the bottom shell 11 and the furnace core 12. In this embodiment, the energy-concentrating ring 16 is made of stainless steel. In actual production, the energy-concentrating ring 16 can be made of cast iron. The circumferential edge of the furnace core 12 has two rings of combustion holes 3, including a jet nozzle 31 located on the outer ring and a swirl nozzle 32 located on the inner ring. The jet nozzle 31 is arranged vertically, and the swirl nozzle 32 is arranged obliquely inward and upward along the vertical direction and is deflected in the horizontal direction. The burner head 1 has a first mounting hole 14 for installing an ignition needle and a second mounting hole 15 for installing a thermocouple induction needle.

[0026] The air supply duct 2 is right-angled and fixed to the bottom of the burner head 1. A large-fire gas connector 4 and a small-fire gas connector 5 are connected to the air supply duct 2. The large-fire gas connector 4 is located at the air inlet end of the air supply duct 2, and the small-fire gas connector 5 is located at the air outlet end of the air supply duct 2. A small-fire tube 6 is located between the air supply duct 2 and the burner head 1. The air inlet end of the small-fire tube 6 is connected to the small-fire gas connector 5, and the air outlet end of the small-fire tube 6 passes through the gas chamber 13 and the furnace core 12. The air outlet end of the small-fire tube 6 extends into the burner head 1, and is located at the center of the two rings of combustion holes 3. A small flame cap 7 is fitted onto the air outlet end of the small-fire tube 6. A small flame hole 71 is opened in the circumferential side wall of the small flame cap 7. The small-fire gas connector 5 is connected to the small flame hole 71 through the small-fire tube 6.

[0027] The air inlet of the air supply pipe 2 has a pair of symmetrically arranged mounting seams 21. The inner end of the mounting seam 21 extends outward to form a large-diameter rotating hole 211. The outer end of the mounting seam 21 penetrates the end face of the air inlet of the air supply pipe 2. The baffle plate 8 has a pair of rotating plates 81. The pair of rotating plates 81 can move along the pair of mounting seams 21 and enter the pair of rotating holes 211. The rotating plates 81 are rotatably arranged in the rotating holes 211, so that the baffle plate 8 is rotatably arranged at the air inlet of the air supply pipe 2. The large flame gas connector 4 is located between the baffle plate 8 and the small flame gas connector 5.

[0028] When in use, the small flame gas connector 5 is opened and the large flame gas connector 4 is closed, allowing a small amount of gas to enter the burner head 1 through the small flame gas connector 5 and the small flame tube 6. The gas is then ignited by the ignition needle to produce an open flame. Subsequently, the large flame gas connector 4 is opened and the blower is started, allowing a large amount of gas to be ejected from the combustion hole 3 after passing through the large flame gas connector 4 and the air supply pipe 2. The gas is ignited when it encounters the open flame, thus achieving combustion and heating.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0030] Although this document frequently uses terms such as burner head 1, bottom shell 11, furnace core 12, gas chamber 13, first mounting hole 14, second mounting hole 15, energy-concentrating ring 16, air supply pipe 2, mounting seam 21, rotating hole 211, combustion hole 3, jet nozzle 31, swirl nozzle 32, high-fire gas connector 4, low-fire gas connector 5, low-fire pipe 6, low-fire cap 7, low-fire hole 71, wind baffle 8, and rotating plate 81, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A burner comprising a burner head (1) and an air supply pipe (2) fixedly connected to the bottom of the burner head (1), wherein the burner head (1) has a plurality of combustion holes (3) along its circumferential edge, the air supply pipe (2) is connected to the combustion holes (3), and a high-fire gas connector (4) is connected to the air supply pipe (2), characterized in that, The small fire gas joint (5) is connected to the air supply pipe (2), the burner further comprises a small fire pipe (6) located in the air supply pipe (2) and the furnace head (1), the air inlet end of the small fire pipe (6) is connected to the small fire gas joint (5), the air outlet end of the small fire pipe (6) extends into the furnace head (1) and is located at the center of several circles of the combustion hole (3).

2. A burner as claimed in claim 1, characterised in that The air outlet end of the small fire pipe (6) is sleeved with a small fire cap (7), a plurality of small fire holes (71) are formed in the circumferential side wall of the small fire cap (7), and the small fire gas joint (5) is connected in communication with the small fire hole (71) through the small fire pipe (6).

3. A burner as claimed in claim 1, characterised in that The air supply pipe (2) is in a right angle shape, the large fire gas joint (4) is located at the air inlet end of the air supply pipe (2), and the small fire gas joint (5) is located at the air outlet end of the air supply pipe (2).

4. A burner according to claim 1 or 2 or 3, characterised in that A wind baffle (8) is rotatably arranged at the air inlet end of the air supply pipe (2), and the large fire gas joint (4) is located between the wind baffle (8) and the small fire gas joint (5).

5. A burner as claimed in claim 4, characterised in that The air inlet end of the air supply pipe (2) has a pair of symmetrically arranged mounting slots (21), the inner end of the mounting slot (21) extends outward to form a rotating hole (211) with a larger diameter, the outer end of the mounting slot (21) penetrates the end face of the air inlet end of the air supply pipe (2), the wind baffle (8) has a pair of rotating pieces (81), the pair of rotating pieces (81) can move along the pair of mounting slots (21) and enter the pair of rotating holes (211), and the rotating piece (81) is rotatably arranged in the rotating hole (211).

6. A burner as claimed in claim 1 or 2 or 3, characterised in that The combustion hole (3) comprises a jet hole (31) located at the outer circle and a rotary jet hole (32) located at the inner circle, the jet hole (31) is arranged in the vertical direction, the rotary jet hole (32) is arranged in the vertical direction and inclined inward and upward, and the rotary jet hole (32) is arranged in the horizontal direction.

7. A burner as claimed in claim 1 or 2 or 3, characterised in that The furnace head (1) comprises a bottom shell (11), a furnace core (12) fixed in the bottom shell (11), and an energy gathering ring (16) fixed on the bottom shell (11), the energy gathering ring (16) is made of stainless steel material or cast iron material, the combustion hole (3) is located at the circumferential edge of the furnace core (12), a gas cavity (13) is formed between the bottom shell (11) and the furnace core (12), the air supply pipe (2) is connected in communication with the combustion hole (3) through the gas cavity (13), the small fire pipe (6) is partially located in the gas cavity (13), and the air outlet end of the small fire pipe (6) penetrates the furnace core (12).

8. A burner as claimed in claim 7, characterised in that The furnace head (1) has a first mounting hole (14) for mounting an ignition needle and a second mounting hole (15) for mounting a thermocouple sensing needle.

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