Three-ring burner capable of directly spraying center fire

Abstract

The utility model relates to the technical field of combustors, and discloses a three-ring combustor capable of directly spraying center fire, which comprises a combustor body, an outer fire output ring groove and an inner fire output ring groove are arranged on the combustor body, an independent center fire tube assembly is arranged in the center of the inner fire output ring groove, and a three-ring combustor is arranged in the center of the inner fire output ring groove. The burner body and the independent center fire tube assembly are of a separable structure, and the outer fire output ring groove and the inner fire output ring groove are in a circular ring shape. According to the three-ring burner, the independent center fire tube assembly is independently arranged in the center of the inner fire output ring groove, so that center fire can be output, the independent center fire tube assembly can be separated from the burner body, so that independent cleaning is facilitated, a gas groove for gas supply does not need to be additionally formed in the burner body, and the cost is reduced. And the product development cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a three-ring burner with direct injection of central fire. Background Art

[0002] The three-ring fire burners currently available on the market include inner ring fire, middle ring fire and outer ring fire. Among them, the three-ring fire divider is generally provided with an inner ring air inlet channel, a middle ring air inlet channel and an outer ring air inlet channel, as well as an inner ring gas groove, a middle ring gas groove and an outer ring gas groove corresponding to the inner ring air inlet channel, the middle ring air inlet channel and the outer ring air inlet channel one by one. The inner ring gas groove is located above the inner ring air inlet channel and is connected to the inner ring gas groove, the middle ring gas groove is arranged around the outer circumference of the inner ring gas groove, and the outer ring gas groove is arranged around the outer circumference of the middle ring gas groove.

[0003] For example, a three-ring fire burner disclosed in Chinese patent document CN116182158A includes: a burner body, having an inner air cavity, an inner ring air cavity, a middle ring air cavity, an outer air cavity with a top opening, and an outer ring air cavity arranged from the inside to the outside in a radial direction, and an air outlet connected to the inner air cavity and an inner fire hole group connected to the inner ring air cavity are provided at the top of the burner body.

[0004] According to the prior art disclosed above, the existing center fire ring structure is an integrated structure with the burner body, and the burner body needs to be further provided with an air groove for air supply, so that the development of the product requires more materials, making the product cost relatively high, and the center air groove has a relatively small aperture in practice, and since it cannot be removed separately, it is difficult to clean. Utility Model Content

[0005] In order to overcome the defects in the prior art, the utility model provides a three-ring burner with direct injection center fire to solve the problems in the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a three-ring burner with direct injection center fire, comprising a burner body, wherein the burner body is provided with an outer fire output ring groove and an inner fire output ring groove, an independent center fire tube assembly is arranged at the center of the inner fire output ring groove, the burner body and the independent center fire tube assembly are separable structures, and the outer fire output ring groove and the inner fire output ring groove are in a circular ring shape.

[0007] The beneficial effect of the utility model is that the center fire can be output by separately arranging the independent center fire tube assembly at the center of the inner fire output ring groove. Since the independent center fire tube assembly can be separated from the burner body, it is convenient to clean it separately, and there is no need to add a gas groove for gas supply to the burner body, thereby reducing product development costs.

[0008] Furthermore, it also includes a base, and the independent center fire tube assembly includes a connecting tube and a premixing tube, the connecting tube is penetrated and installed on the base, a limiting seat is arranged at the upper end of the connecting tube, a high-pressure injection head is arranged at the upper end of the limiting seat, a gas injection hole is opened on the upper end surface of the high-pressure injection head, the high-pressure injection head is penetrated in the premixing tube so that one end of the premixing tube is mounted on the limiting seat, an air inlet is opened on the circumference of the premixing tube, a center fire output head is arranged on the upper end surface of the premixing tube, and a center fire output hole is opened on the center fire output head.

[0009] After adopting the above-mentioned further structure, the independent center fire tube assembly is installed on the base so that the center fire output hole is placed in the center of the inner fire output ring groove, thereby forming a center fire with a simple structure and easy assembly and disassembly; the lower end of the connecting pipe is used to connect the gas pipe, so that the gas can be sprayed into the premixing tube at high pressure from the gas injection hole. During the gas injection process, the flow rate in the premixing tube is relatively fast, so that air can be sucked into the premixing tube from the air inlet and premixed with the gas, so that the mixed gas output from the center fire output hole is more complete during combustion.

[0010] Furthermore, the side projection of the high-pressure injection head is conical, and the side projection of the center fire output head is conical.

[0011] After adopting the above-mentioned further structure, the output pressure of the high-pressure injection head and the center fire output head is greater, so that the center fire output height is higher and the flame is more fierce.

[0012] Furthermore, the lower end of the burner body is mounted on the base through supporting feet so that an air cavity is formed between the lower end surface of the burner body and the upper end surface of the base. A mounting seat is provided at the center position of the base, and a connecting hole passing through the base is provided on the mounting seat. The connecting pipe is inserted into the connecting hole, and the air inlet is located in the air cavity.

[0013] After adopting the above-mentioned further structure, the air inlet can better inhale the air in the air cavity for premixing. At the same time, the connecting pipe can be installed on the base through the connecting hole. For disassembly, it only needs to unplug the gas pipe and it can be directly taken out, which is more convenient for assembly and disassembly.

[0014] Furthermore, an outer fire gas groove and an inner fire gas groove are provided on the burner body, the outer fire output ring groove is connected with the outer fire gas groove, and the inner fire output ring groove is connected with the inner fire gas groove, and a first ejector tube and a second ejector tube located in the air cavity are provided at the lower end of the burner body, the first ejector tube is connected with the outer fire gas groove, and the second ejector tube is connected with the inner fire gas groove, and a first gas inlet and a second gas inlet are provided on one side of the base, the output end of the first gas inlet is located in the air cavity and corresponds to the first ejector tube through a nozzle, and the output end of the second gas inlet is located in the air cavity and corresponds to the second ejector tube through a nozzle.

[0015] After adopting the above further structure, the first gas inlet and the second gas inlet can respectively spray gas to the first ejector tube and the second ejector tube, so that the gas can enter the first ejector tube and the second ejector tube in the air cavity, thereby improving the premixing effect.

[0016] Furthermore, the upper end cover of the outer fire gas groove is provided with a first output hole ring, and a plurality of first gas output holes are opened on the first output hole ring. An outer fire baffle ring installed on the burner body is provided above the first output hole ring. A first cavity is formed between the outer fire baffle ring and the first output hole ring, and the outer fire output ring groove is formed between the edge of one side of the outer fire baffle ring and the inner wall of one side of the first output hole ring.

[0017] After adopting the above-mentioned further structure, the premixed gas enters the outer fire gas groove, and then enters the first cavity through multiple first gas output holes, so that the premix is ​​further mixed, so that the gas and air are mixed more fully, and then output from the outer fire output ring groove. Since the outer fire output ring groove is the gap formed between the edge of one side of the outer fire baffle ring and the inner wall of one side of the first output hole ring, the fully mixed gas can be directly ejected from the outer fire output ring groove, so that the flame forms a ring shape, instead of the traditional flame output through multiple output holes. The ring flame can better contact the cookware and has a higher heat transfer efficiency.

[0018] Furthermore, the upper end cover of the inner fire gas groove is provided with a second output hole ring, and a plurality of second gas output holes are opened on the second output hole ring. An inner fire baffle ring installed on the burner body is provided above the second output hole ring. A second cavity is formed between the inner fire baffle ring and the second output hole ring, and the inner fire output ring groove is formed between one side edge of the inner fire baffle ring and the inner wall of one side of the second output hole ring.

[0019] After adopting the above-mentioned further structure, the premixed gas enters the inner fire gas groove, and then enters the second cavity through multiple second gas output holes, so that the premix is ​​further mixed, so that the gas and air are mixed more fully, and then output from the inner fire output ring groove. Since the inner fire output ring groove is the gap formed between the edge of one side of the inner fire baffle ring and the inner wall of one side of the second output hole ring, the fully mixed gas can be directly ejected from the inner fire output ring groove, so that the flame forms a ring shape, instead of the traditional flame output through multiple output holes. The ring flame can better contact the cookware and has a higher heat transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of the three-ring burner of the utility model.

[0021] Figure 2 This is the second schematic diagram of the three-ring burner of the utility model.

[0022] Figure 3 Schematic diagram of the internal structure of the burner body.

[0023] Figure 4 Schematic diagram of the connection structure between the independent center fire tube assembly and the base.

[0024] Figure 5 A schematic diagram of the three-dimensional structure of the base.

[0025] Figure 6 Schematic diagram of the explosion structure of an independent central fire tube assembly.

[0026] In the figure: burner body 1, outer fire output ring groove 2, inner fire output ring groove 3, independent center fire tube assembly 4, supporting foot 5, base 6, fixing foot 7, first gas inlet 8, second gas inlet 9, first output hole ring 10, outer fire baffle ring 11, second output hole ring 12, inner fire baffle ring 13, mounting seat 14, connecting hole 15, connecting pipe 16, limit seat 17, high-pressure injection head 18, gas injection hole 19, premixing tube 20, air inlet 21, center fire output head 22, center fire output hole 23. DETAILED DESCRIPTION

[0027] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Combination Figures 1 to 6A three-ring burner with direct injection center fire shown in the figure includes a burner body 1, on which an outer fire output ring groove 2 and an inner fire output ring groove 3 are arranged, and an independent center fire tube assembly 4 is arranged at the center of the inner fire output ring groove 3. The burner body 1 and the independent center fire tube assembly 4 are separable structures, and the outer fire output ring groove 2 and the inner fire output ring groove 3 are in a circular ring shape. In this embodiment, the independent center fire tube assembly 4 is separately arranged at the center of the inner fire output ring groove 3, so that the center fire can be output. Since the independent center fire tube assembly 4 can be separated from the burner body 1, it is convenient to clean it separately, and there is no need to add a gas groove for gas supply to the burner body 1, thereby reducing the product development cost.

[0029] See also Figure 2 , Figures 4 to 6 As shown, this embodiment also includes a base 6, and a plurality of fixing feet 7 are arranged on the side of the lower end of the base 6 for installing the base in the stove. The independent center fire tube assembly 4 includes a connecting pipe 16 and a premixing pipe 20. The connecting pipe 16 is penetrated and installed on the base 6. A limiting seat 17 is arranged on the upper end of the connecting pipe 16. A high-pressure injection head 18 is arranged on the upper end of the limiting seat 17. A gas injection hole 19 is opened on the upper end surface of the high-pressure injection head 18. The high-pressure injection head 18 is penetrated in the premixing pipe 20 so that one end of the premixing pipe 20 is mounted on the limiting seat 17. An air inlet 21 is opened on the circumference of the premixing pipe 20. The upper end surface of the premixing pipe 20 is provided with a center fire output head 2 2. A center fire output hole 23 is provided on the center fire output head 22; the independent center fire tube assembly 4 is installed on the base 6 so that the center fire output hole 23 is arranged at the center of the inner fire output ring groove 3, thereby forming a center fire, which has a simple structure and is easy to assemble and disassemble; the lower end of the connecting pipe 16 is used to connect the gas pipe, so that the gas can be sprayed into the premixing tube 20 at high pressure from the gas injection hole 19. During the gas injection process, the flow rate in the premixing tube 20 is relatively fast, so that air can be sucked into the premixing tube 20 from the air inlet 21 and premixed with the gas, so that the mixed gas output from the center fire output hole 23 is more complete during combustion.

[0030] It should be noted that the side projection of the high-pressure injection head 18 of this embodiment is conical, and the side projection of the center fire output head 22 is conical; the output pressure of the high-pressure injection head 18 and the center fire output head 22 is greater, which makes the center fire output height higher and the flame more fierce.

[0031] Combination Figures 1 to 3As shown, the lower end of the burner body 1 of the present embodiment is mounted on the base 6 through the supporting feet 5, so that an air cavity is formed between the lower end surface of the burner body 1 and the upper end surface of the base 6, and a mounting seat 14 is provided at the center position of the base 6, and a connecting hole 15 penetrating the base 6 is provided on the mounting seat 14, and a connecting pipe 16 is passed through the connecting hole 15, and an air inlet 21 is located in the air cavity; the air inlet 21 can better inhale the air in the air cavity for premixing, and at the same time, the connecting pipe 16 can be mounted on the base 6 through the connecting hole 15, and disassembly can be directly taken out by simply unplugging the gas pipe, which is more convenient for assembly and disassembly.

[0032] Among them, the burner body 1 is provided with an outer fire gas groove and an inner fire gas groove, the outer fire output ring groove 2 is connected with the outer fire gas groove, and the inner fire output ring groove 3 is connected with the inner fire gas groove, and the lower end of the burner body 1 is provided with a first ejector tube and a second ejector tube located in the air cavity, the first ejector tube is connected with the outer fire gas groove, and the second ejector tube is connected with the inner fire gas groove, and a first gas inlet 8 and a second gas inlet 9 are provided on one side of the base 6, the output end of the first gas inlet 8 is located in the air cavity and corresponds to the first ejector tube through a nozzle, and the output end of the second gas inlet 9 is located in the air cavity and corresponds to the second ejector tube through a nozzle; the first gas inlet 8 and the second gas inlet 9 can respectively spray gas to the first ejector tube and the second ejector tube, so that the gas can enter the first ejector tube and the second ejector tube in the air cavity, thereby improving the premixing effect.

[0033] A first output hole ring 10 is provided on the upper end cover of the outer fire gas groove, and a plurality of first gas output holes are opened on the first output hole ring 10. An outer fire baffle ring 11 installed on the burner body 1 is provided above the first output hole ring 10. A first cavity is formed between the outer fire baffle ring 11 and the first output hole ring 10, and an outer fire output ring groove 2 is formed between the edge of one side of the outer fire baffle ring 11 and the inner wall of one side of the first output hole ring 10; the premixed gas enters the outer fire gas groove, and then enters the first cavity through the plurality of first gas output holes, so that the premixed gas is further mixed, so that the gas and air are mixed more fully, and then output from the outer fire output ring groove 2. Since the outer fire output ring groove 2 is the gap formed between the edge of one side of the outer fire baffle ring 11 and the inner wall of one side of the first output hole ring 10, the fully mixed gas can be directly ejected from the outer fire output ring groove 2, so that the flame forms a ring shape, which is not a traditional flame output through a plurality of output holes. The ring flame can better contact with the cookware, and the heat transfer efficiency is higher.

[0034] The upper end cover of the inner fire gas groove is provided with a second output hole ring 12, and a plurality of second gas output holes are opened on the second output hole ring 12. An inner fire baffle ring 13 installed on the burner body 1 is provided above the second output hole ring 12. A second cavity is formed between the inner fire baffle ring 13 and the second output hole ring 12, and an inner fire output ring groove 3 is formed between the edge of one side of the inner fire baffle ring 13 and the inner wall of one side of the second output hole ring 12; the premixed gas enters the inner fire gas groove, and then enters the second cavity through a plurality of second gas output holes, so that the premixed gas is further mixed, so that the gas and air are mixed more fully, and then output from the inner fire output ring groove 3. Since the inner fire output ring groove 3 is the gap formed between the edge of one side of the inner fire baffle ring 13 and the inner wall of one side of the second output hole ring 12, the fully mixed gas can be directly ejected from the inner fire output ring groove 3, so that the flame forms a ring shape, which is not a traditional flame output through multiple output holes. The ring flame can better contact with the cookware, and the heat transfer efficiency is higher.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A three-ring burner with direct injection center fire, comprising a burner body (1), characterized in that: The burner body (1) is provided with an outer fire output annular groove (2) and an inner fire output annular groove (3); an independent central fire tube assembly (4) is provided at the center of the inner fire output annular groove (3); the burner body (1) and the independent central fire tube assembly (4) are separable structures; and the outer fire output annular groove (2) and the inner fire output annular groove (3) are in the shape of an annulus.

2. A three-ring burner with direct injection center fire according to claim 1, characterized in that: The invention also comprises a base (6), wherein the independent center fire tube assembly (4) comprises a connecting tube (16) and a premixing tube (20), wherein the connecting tube (16) is installed on the base (6), a limit seat (17) is arranged at the upper end of the connecting tube (16), a high pressure injection head (18) is arranged at the upper end of the limit seat (17), a gas injection hole (19) is provided on the upper end surface of the high pressure injection head (18), the high pressure injection head (18) is inserted into the premixing tube (20), so that one end of the premixing tube (20) is mounted on the limit seat (17), an air inlet (21) is provided on the circumference of the premixing tube (20), a center fire output head (22) is provided on the upper end surface of the premixing tube (20), and a center fire output hole (23) is provided on the center fire output head (22).

3. A three-ring burner with direct injection center fire according to claim 2, characterized in that: The side projection of the high-pressure injection head (18) is conical, and the side projection of the center fire output head (22) is conical.

4. A three-ring burner with direct injection center fire according to claim 2, characterized in that: The lower end of the burner body (1) is mounted on a base (6) via supporting feet (5) so that an air cavity is formed between the lower end surface of the burner body (1) and the upper end surface of the base (6); a mounting seat (14) is provided at the center of the base (6); a connecting hole (15) penetrating the base (6) is provided on the mounting seat (14); the connecting pipe (16) is inserted into the connecting hole (15); and the air inlet (21) is located in the air cavity.

5. A three-ring burner with direct injection center fire according to claim 4, characterized in that: The burner body (1) is provided with an outer fire gas groove and an inner fire gas groove, the outer fire output ring groove (2) is connected to the outer fire gas groove, and the inner fire output ring groove (3) is connected to the inner fire gas groove. The lower end of the burner body (1) is provided with a first ejector pipe and a second ejector pipe located in the air cavity, the first ejector pipe is connected to the outer fire gas groove, and the second ejector pipe is connected to the inner fire gas groove. A first gas inlet (8) and a second gas inlet (9) are provided on one side of the base (6), the output end of the first gas inlet (8) is located in the air cavity and corresponds to the first ejector pipe through a nozzle, and the output end of the second gas inlet (9) is located in the air cavity and corresponds to the second ejector pipe through a nozzle.

6. A three-ring burner with direct injection center fire according to claim 5, characterized in that: The upper end cover of the outer fire gas groove is provided with a first output hole ring (10), and a plurality of first gas output holes are opened on the first output hole ring (10). An outer fire baffle ring (11) mounted on the burner body (1) is provided above the first output hole ring (10), a first cavity is formed between the outer fire baffle ring (11) and the first output hole ring (10), and the outer fire output ring groove (2) is formed between an edge of one side of the outer fire baffle ring (11) and an inner wall of one side of the first output hole ring (10).

7. A three-ring burner with direct injection center fire according to claim 5, characterized in that: The upper end cover of the inner fire gas groove is provided with a second output hole ring (12), and a plurality of second gas output holes are formed on the second output hole ring (12). An inner fire baffle ring (13) mounted on the burner body (1) is provided above the second output hole ring (12), a second cavity is formed between the inner fire baffle ring (13) and the second output hole ring (12), and the inner fire output ring groove (3) is formed between a side edge of the inner fire baffle ring (13) and an inner wall of one side of the second output hole ring (12).

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