Combustor and combustor manufacturing method

Abstract

The invention provides a burner and a burner manufacturing method, the burner comprises a first piece, a second piece and a third piece, the third piece is provided with a first part and a second part, the first part and the first piece are connected through a first edge covering structure to form an inner ring injection pipe, and the second part and the second piece are connected through a second edge covering structure to form an outer ring injection pipe. According to the burner, due to the fact that the first piece, the second piece and the third piece are arranged in a split mode, in the manufacturing process, the first piece, the second piece and the third piece can be formed in a punch forming mode, then the first piece and the first part are connected through the first edge covering structure to form the inner ring injection pipe, and the second piece and the second part are connected through the second edge covering structure to form the outer ring injection pipe; therefore, the pipe expansion operation is omitted, the risk of gas leakage caused by expansion of the injection pipe due to pipe expansion is avoided, the process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchenware, and in particular to a burner and a method for manufacturing the burner. Background Art

[0002] During the manufacturing of existing stainless steel burners, the ejector tube needs to be cut, shrunken, expanded, rounded, truncated, flattened, reinforced, cleaned and leak tested. The process is complicated, and the ejector tube is easily cracked when expanding the tube, thus posing the risk of gas leakage. Summary of the invention

[0003] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a burner is provided, and the technical solution is as follows.

[0004] The burner comprises a first piece, a second piece and a third piece; the third piece comprises a first part and a second part, the first part is connected with the first piece through a first edging structure to form an inner ring ejector tube, and the second part is connected with the second piece through a second edging structure to form an outer ring ejector tube.

[0005] The burner of the present invention has a split arrangement of the first piece, the second piece and the third piece. During manufacture, the first piece, the second piece and the third piece can be stamped out separately, and then the first piece and the first part are connected by the first edging structure to form an inner ring ejector tube, and the second piece and the second part are connected by the second edging structure to form an outer ring ejector tube. This omits the tube expansion operation, avoids the risk of gas leakage caused by the ejector tube bursting due to tube expansion, simplifies the process, and improves production efficiency.

[0006] Exemplarily, the first part and the second part are connected by a supporting connection part, and the first part, the supporting connection part and the second part are integrally formed. Such a configuration improves the accuracy of the supporting connection part, and does not require other accessories to connect the first part, the supporting connection part and the second part, thereby simplifying the manufacturing process and reducing costs.

[0007] Exemplarily, the first edge structure includes a first extension edge and a first matching edge, wherein the first extension edge extends outward from the outer wall surface of the first part, and the first matching edge extends outward from the outer wall surface of the first part for a first predetermined distance and then bends to cover the first extension edge; or the first extension edge extends outward from the outer wall surface of the first part, and the first matching edge extends outward from the outer wall surface of the first part for a first predetermined distance and then bends to cover the first extension edge. Such an arrangement ensures the sealing of the inner ring ejector tube, simplifies the process, reduces the welding of the inner ring ejector tube, and reduces the risk of deformation of the inner ring ejector tube caused by welding.

[0008] Exemplarily, the second edge structure includes a second extension edge and a second matching edge, the second extension edge extends outward from the outer wall surface of the second part, and the second matching edge extends outward from the outer wall surface of the second piece for a second predetermined distance and then bends to cover the second extension edge; or the second extension edge extends outward from the outer wall surface of the second piece, and the second matching edge extends outward from the outer wall surface of the second part for a second predetermined distance and then bends to cover the second extension edge. Such a configuration ensures the sealing of the outer ring ejector tube, simplifies the process, reduces the welding of the outer ring ejector tube, and reduces the risk of deformation of the outer ring ejector tube caused by welding.

[0009] Exemplarily, the first predetermined distance is 3 mm to 8 mm. Within this range, the first predetermined distance avoids the risk of leakage of the inner ring ejector tube due to being too small, and avoids the problem of high cost due to being too large.

[0010] Exemplarily, the second predetermined distance is 3 mm to 8 mm. Within this range, the second predetermined distance avoids the risk of leakage of the outer ring ejector tube due to being too small, and avoids the problem of high cost due to being too large.

[0011] Exemplarily, the first edging structure forms a first end surface on the inner ring ejector tube, and the second edging structure forms a second end surface on the outer ring ejector tube, and the first end surface and the second end surface are located on the same horizontal plane. This arrangement facilitates the assembly of the inner ring ejector tube and the outer ring ejector tube with other structural parts.

[0012] Exemplarily, the burner further comprises a support seat, a first mounting hole and a second mounting hole are arranged on the support seat, the inner ring ejector tube is passed through the first mounting hole, the outer ring ejector tube is passed through the second mounting hole, and the bottom surface of the support seat abuts against the first end surface and the second end surface. In this arrangement, the support seat is supported by the first edging structure and the second edging structure, and the inner ring ejector tube is limited in position relative to the support seat by the abutment of the first end surface with the bottom surface, and the outer ring ejector tube is limited in position relative to the support seat by the abutment of the second end surface with the bottom surface, thereby enhancing the concentricity between the inner ring ejector tube and the outer ring ejector tube and the ignition distributor of the burner, thereby enhancing the combustion efficiency of the burner.

[0013] For example, the inner ring ejector tube is divided into a first section and a second section through a first end face in the direction of gas flow, the first section passes through a first mounting hole, the second section is located below the support seat, and the first piece is welded and connected to the first part on the first section. In this arrangement, since the first section is used to cooperate with the ignition distributor of the burner, the sealing requirement is relatively high. By welding the first section, the sealing of the inner ring ejector tube is enhanced, and the first edging structure is not provided on the first section, which facilitates the first section to pass through the first mounting hole of the support seat and enhances the accuracy of the first section to cooperate with the ignition distributor.

[0014] Exemplarily, the first section has a first installation section, and the first installation section has a length L1, and the length L1 is 6 mm to 10 mm. The length of the first installation section is within this range, which facilitates the assembly of the first installation section and the ignition distributor of the burner.

[0015] For example, the outer ring ejector tube is divided into a third section and a fourth section through the second end face in the direction of gas flow, the third section passes through the second mounting hole, the fourth section is located below the support seat, and the second part is welded and connected to the second part on the third section. In this arrangement, since the third section is used to cooperate with the ignition distributor of the burner, the sealing requirement is relatively high. By welding the third section, the sealing of the outer ring ejector tube is enhanced, and the second edging structure is not provided on the third section, which facilitates the third section to pass through the second mounting hole of the support seat and enhances the accuracy of the third section to cooperate with the ignition distributor.

[0016] For example, the third section has a second mounting section, and the second mounting section has a length L2, and the length L2 is 6 mm to 10 mm. The length of the second mounting section is within this range, which facilitates the assembly of the second mounting section and the ignition distributor of the burner.

[0017] Exemplarily, the first edging structure further forms a third end face on the inner ring ejector tube, and the second edging structure further forms a fourth end face on the outer ring ejector tube, and the third end face and the fourth end face are located on the same vertical plane. This arrangement facilitates the assembly of the inner ring ejector tube and the outer ring ejector tube with other structural parts.

[0018] Exemplarily, the burner further comprises an air door, and the air door abuts against the third end face and the fourth end face. Such arrangement facilitates the air door to be installed on the inner ring ejector tube and the outer ring ejector tube.

[0019] Exemplarily, the inner ring ejector tube has a first port at one end away from the first end face, and a distance S1 is provided between the third end face and the first port, and the distance S1 is 4 mm to 6 mm. When the distance between the third end face and the first port is within this range, it is convenient to install the damper to the inner ring ejector tube, and the air tightness of the inner ring ejector tube is ensured.

[0020] Exemplarily, the outer ring ejector tube has a second opening at one end away from the second end face, and a distance S2 is provided between the fourth end face and the second opening, and the distance S2 is 4 mm to 6 mm. In this arrangement, when the distance between the fourth end face and the second opening is within this range, it is convenient to install the damper to the outer ring ejector tube, and the air tightness of the outer ring ejector tube is ensured.

[0021] According to another aspect of the present invention, a burner manufacturing method is provided, which is used to manufacture the burner as described above, comprising the steps of: stamping to form a first piece, a second piece and a third piece; and pressing to form a first edging structure so that the first part is connected to the first piece to form an inner ring ejector tube, and pressing to form a second edging structure so that the second part is connected to the second piece to form an outer ring ejector tube.

[0022] The burner manufacturing method of the present invention omits complicated processes such as cutting, shrinking, expanding and rounding, truncating, flattening and pier reinforcement, improves production efficiency and avoids the risk of gas leakage caused by the bursting of the ejector tube due to the expansion operation.

[0023] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0024] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The embodiments of the present invention and their description are shown in the drawings to explain the principle of the present invention. In the drawings,

[0026] Figure 1 A perspective view of a portion of a burner according to an exemplary embodiment of the present invention;

[0027] Figure 2 for Figure 1 A perspective view of a portion of the burner shown from another angle;

[0028] Figure 3 for Figure 1 A top view of a portion of the burner is shown;

[0029] Figure 4 for Figure 1 A front view of the combination of the inner ring ejector tube and the outer ring ejector tube shown;

[0030] Figure 5 for Figure 1 A top view of the combination of the inner ring ejector tube and the outer ring ejector tube shown;

[0031] Figure 6 for Figure 1 A bottom view of the support base is shown.

[0032] The above drawings include the following reference numerals:

[0033] 101, inner ring ejector tube; 1011, first section; 1011a, first installation section; 1012, second section; 1013, first port; 102, outer ring ejector tube; 1021, third section; 1021a, second installation section; 1022, fourth section; 1023, second port; 110, first piece; 120, second piece; 130, third piece; 131, first part; 132, second part; 133, support connection part; 140, first edge binding Structure; 141, first extended edge; 142, first mating edge; 143, first end face; 144, third end face; 150, second edging structure; 151, second extended edge; 152, second mating edge; 153, second end face; 154, fourth end face; 210, support seat; 211, first mounting hole; 212, second mounting hole; 213, bottom surface; 310, damper; X, first direction; H1, first predetermined distance; H2, second predetermined distance. DETAILED DESCRIPTION

[0034] In the following description, a large amount of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only exemplarily illustrates a preferred embodiment of the present invention, and the present invention can be implemented without one or more such details. In addition, in order to avoid confusion with the present invention, some technical features well known in the art are not described in detail.

[0035] In order to fully understand the embodiments of the present invention, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0036] An embodiment of the present invention provides a burner. An embodiment of the present invention also provides a burner manufacturing method. A burner according to an embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] Combined with reference Figures 1 to 3 The burner may include a first piece 110, a second piece 120 and a third piece 130. The third piece 130 may have a first portion 131 and a second portion 132. The first portion 131 and the first piece 110 may be connected by a first edging structure 140 to form an inner ring ejector tube 101. The second portion 132 and the second piece 120 may be connected by a second edging structure 150 to form an outer ring ejector tube 102.

[0038] The burner of the present invention has a split arrangement of the first piece 110, the second piece 120 and the third piece 130. When manufacturing, the first piece 110, the second piece 120 and the third piece 130 can be stamped and formed separately, and then the first piece 110 and the first part 131 are connected by the first edging structure 140 to form the inner ring ejector tube 101, and the second piece 120 and the second part 132 are connected by the second edging structure 150 to form the outer ring ejector tube 102, thereby omitting the tube expansion operation, avoiding the risk of gas leakage caused by the ejector tube bursting due to tube expansion, simplifying the process, and improving production efficiency.

[0039] In order to facilitate the first piece 110 and the first part 131 to form the inner ring ejector tube 101, and the second piece 120 and the second part 132 to form the outer ring ejector tube 102, the first piece 110, the third piece 130 and the second piece 120 can be arranged sequentially along the first direction X, and the first direction X can be perpendicular to the gas flow direction.

[0040] Specifically, in order to facilitate the stamping and forming of the first piece 110, the second piece 120 and the third piece 130, the first piece 110 may be half of the inner ring ejector tube 101, the second piece 120 may be half of the outer ring ejector tube 102, the first portion 131 may be the other half of the inner ring ejector tube 101 corresponding to the first piece 110, and the second portion 132 may be the other half of the outer ring ejector tube 102 corresponding to the second piece 120. In addition, the first piece 110 may also be one-third or three-quarters of the inner ring ejector tube 101, the second piece 120 may also be one-third or three-quarters of the outer ring ejector tube 102, the first portion 131 may be the other two-thirds or one-quarter of the inner ring ejector tube 101 corresponding to the first piece 110, and the second portion 132 may be the other two-thirds or one-quarter of the outer ring ejector tube 102 corresponding to the second piece 120.

[0041] See also Figure 2, the first part 131 and the second part 132 can be connected by the support connection part 133, and the first part 131, the support connection part 133 and the second part 132 can be integrally formed. In addition to being used to connect the first part 131 and the second part 132, the support connection part 133 can also be used to support the inner ring ejector tube 101 and the outer ring ejector tube 102. Such a configuration improves the accuracy of the support connection part 133, and no other accessories are required to connect the first part 131, the support connection part 133 and the second part 132, which simplifies the manufacturing process and reduces the cost. Specifically, the support connection part 133 can be connected between the first edging structure 140 and the second edging structure 150. Compared with the support connection part 133 directly connected between the outer wall surface of the inner ring ejector tube 101 and the outer wall surface of the outer ring ejector tube 102, it is more convenient for stamping and forming, and avoids deformation of the outer wall surface of the inner ring ejector tube 101 and the outer wall surface of the outer ring ejector tube 102 at the connection part of the support connection part 133.

[0042] See also Figure 4 , the first edging structure 140 may include a first extension edge 141 and a first mating edge 142. The first extension edge 141 may extend outward from the outer wall surface of the first portion 131, and the first mating edge 142 may extend outward from the outer wall surface of the first member 110 by a first predetermined distance H1 and then bend to cover the first extension edge 141. The first mating edge 142 may be bent to form a "U" shape to cover the first extension edge 141. Such a configuration ensures the sealing of the inner ring ejector tube 101, simplifies the process, reduces the welding of the inner ring ejector tube 101, and reduces the risk of deformation of the inner ring ejector tube 101 caused by welding. It should be noted that, because the first piece 110 can be a half tube, a third tube, or three quarters tube of the inner ring ejector tube 101, etc., and the first part 131 can be the other half tube, two thirds tube, or one quarter tube of the inner ring ejector tube 101 corresponding to the first piece 110, the first part 131 can have two edges connected to the first piece 110, and the first piece 110 can have two edges connected to the first part 131. In order to ensure the sealing performance, the first extension edge 141 can extend outward from the two edges of the first part 131, and the first matching edge 142 can extend outward from the two edges of the first piece 110. In an embodiment not shown, the first extension edge 141 can extend outward from the outer wall surface of the first piece 110, and the first matching edge 142 can extend outward from the outer wall surface of the first part 131 by a first predetermined distance H1 and then bend to cover the first extension edge 141. The first extension edge 141 can also extend outward from the two edges of the first piece 110, and the first matching edge 142 can also extend outward from the two edges of the first part 131.

[0043] See again Figure 4, the second edging structure 150 may include a second extension edge 151 and a second mating edge 152. The second extension edge 151 may extend outward from the outer wall surface of the second portion 132, and the second mating edge 152 may extend outward from the outer wall surface of the second piece 120 by a second predetermined distance H2 and then bend to cover the second extension edge 151. The second mating edge 152 may be bent to form a "U" shape to cover the second extension edge 151. Such a configuration ensures the sealing of the outer ring ejector tube 102, simplifies the process, reduces the welding of the outer ring ejector tube 102, and reduces the risk of deformation of the outer ring ejector tube 102 caused by welding. It should be noted that, because the second piece 120 can be a half tube, a third tube or a three-quarter tube of the outer ring ejector tube 102, etc., and the second part 132 can be the other half tube, two-thirds tube or a quarter tube of the outer ring ejector tube 102 corresponding to the second piece 120, etc., the second part 132 can have two edges connected to the second piece 120, and the second piece 120 can have two edges connected to the second part 132. In order to ensure the sealing, the second extension edge 151 can extend outward from the two edges of the second part 132, and the second matching edge 152 can extend outward from the two edges of the second piece 120. In an embodiment not shown, the second extension edge 151 can extend outward from the outer wall surface of the second piece 120, and the second matching edge 152 can extend outward from the outer wall surface of the second part 132 by a second predetermined distance H2 and then bend to cover the second extension edge 151. The second extension edge 151 can also extend outward from the two edges of the second piece 120, and the second matching edge 152 can also extend outward from the two edges of the second part 132.

[0044] See again Figure 4 , the first predetermined distance H1 can be 3mm to 8mm. For example, the first predetermined distance H1 can be 3mm, 5mm, or 8mm, and the first predetermined distance H1 is preferably 5mm. When the first predetermined distance H1 is within this range, the risk of leakage of the inner ring ejector tube 101 due to being too small is avoided, and the problem of high cost due to being too large is avoided.

[0045] See again Figure 4 , the second predetermined distance H2 can be 3mm to 8mm. For example, the second predetermined distance H2 can be 3mm, 5mm, or 8mm, and the second predetermined distance H2 is preferably 5mm. When the second predetermined distance H2 is within this range, the risk of leakage of the outer ring ejector tube 102 due to being too small is avoided, and the problem of high cost due to being too large is avoided.

[0046] Combined with reference Figure 4 and Figure 5The first edging structure 140 may be formed with a first end face 143 on the inner ring ejector tube 101. The second edging structure 150 may be formed with a second end face 153 on the outer ring ejector tube 102. The first end face 143 and the second end face 153 may be located on the same horizontal plane. This arrangement facilitates the assembly of the inner ring ejector tube 101 and the outer ring ejector tube 102 with other structural parts. Of course, it is not excluded that the first end face 143 and the second end face 153 are not located on the same horizontal plane in order to facilitate the installation of other structural parts.

[0047] Combined with reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The burner may further include a support seat 210. The support seat 210 may be provided with a first mounting hole 211 and a second mounting hole 212. The inner ring ejector tube 101 may be inserted into the first mounting hole 211, the outer ring ejector tube 102 may be inserted into the second mounting hole 212, and the bottom surface 213 of the support seat 210 may abut against the first end surface 143 and the second end surface 153. In this way, the support seat 210 is supported by the first edging structure 140 and the second edging structure 150, and the inner ring ejector tube 101 is limited relative to the support seat 210 by the abutment of the first end surface 143 and the bottom surface 213, and the outer ring ejector tube 102 is limited relative to the support seat 210 by the abutment of the second end surface 153 and the bottom surface 213, thereby enhancing the concentricity between the inner ring ejector tube 101 and the outer ring ejector tube 102 and the ignition distributor (not shown) of the burner, thereby enhancing the combustion efficiency of the burner.

[0048] Furthermore, since the outer ring ejector tube 102 cooperates with the outer ring fire cover (not shown) of the burner, when the burner is used, the outer ring fire cover generates a large flame and requires more gas, and the inner ring ejector tube 101 cooperates with the inner ring fire cover of the burner, when the burner is used, the inner ring fire cover (not shown) generates a small flame and requires less gas, so the diameter of the inner ring ejector tube 101 is smaller than that of the outer ring ejector tube 102. In this way, the diameter of the first mounting hole 211 is smaller than the diameter of the second mounting hole 212.

[0049] Combined with reference Figures 3 to 6The inner ring ejector tube 101 can be divided into a first section 1011 and a second section 1012 through the first end surface 143 in the gas flow direction. The first section 1011 can pass through the first mounting hole 211, the second section 1012 can be located below the support seat 210, and the first piece 110 and the first part 131 can be welded and connected on the first section 1011. In this arrangement, since the first section 1011 is used to cooperate with the ignition distributor of the burner, the sealing requirement is relatively high. By welding the first section 1011, the sealing of the inner ring ejector tube 101 is enhanced, and the first edging structure 140 is not provided on the first section 1011, which facilitates the first section 1011 to pass through the first mounting hole 211 of the support seat 210, and enhances the accuracy of the first section 1011 and the ignition distributor. Furthermore, since the first end surface 143 is an end surface close to the support seat 210 formed by the first matching edge 142 bending and covering the first extending edge 141, a gap is provided on the first end surface 143. In order to enhance the sealing performance, the gap can be welded.

[0050] See again Figure 4 The first section 1011 may have a first mounting section 1011a, which is used to cooperate with the ignition distributor of the burner. The first mounting section 1011a may have a length L1, which may be 6 mm to 10 mm. For example, the length L1 may be 6 mm, 8 mm, or 10 mm, and the best length L1 is 8 mm. The length of the first mounting section 1011a is within this range, which facilitates the assembly of the first mounting section 1011a with the ignition distributor of the burner.

[0051] Again, refer to Figures 3 to 6 , the outer ring ejector tube 102 can be divided into a third section 1021 and a fourth section 1022 through the second end surface 153 in the gas flow direction. The third section 1021 can pass through the second mounting hole 212, the fourth section 1022 can be located below the support seat 210, and the second piece 120 and the second part 132 can be welded and connected on the third section 1021. In this arrangement, since the third section 1021 is used to cooperate with the ignition distributor of the burner, the sealing requirement is relatively high. By welding the third section 1021, the sealing of the outer ring ejector tube 102 is enhanced, and the second edging structure 150 is not provided on the third section 1021, which facilitates the third section 1021 to pass through the second mounting hole 212 of the support seat 210, and enhances the accuracy of the third section 1021 and the ignition distributor. Furthermore, since the second end surface 153 is an end surface close to the support seat 210 formed by the second matching edge 152 bending and covering the second extending edge 151, a gap is provided on the second end surface 153. In order to enhance the sealing performance, the gap can be welded.

[0052] See again Figure 4The third section 1021 may have a second mounting section 1021a, which is used to cooperate with the ignition distributor of the burner. The second mounting section 1021a may have a length L2, which may be 6 mm to 10 mm. For example, the length L2 may be 6 mm, 8 mm, or 10 mm, and the best length L2 is 8 mm. The length of the second mounting section 1021a is within this range, which facilitates the assembly of the second mounting section 1021a with the ignition distributor of the burner.

[0053] Since the inner ring fire cover can be higher than the outer ring fire cover in the vertical plane, the first section 1011 cooperates with the inner ring fire cover, and the second section 1012 cooperates with the outer ring fire cover. In this way, the length of the first section 1011 can be greater than the length of the second section 1012.

[0054] Again, refer to Figure 4 and Figure 5 , the first edging structure 140 may also be formed with a third end face 144 on the inner ring ejector tube 101. The second edging structure 150 may also be formed with a fourth end face 154 on the outer ring ejector tube 102. The third end face 144 and the fourth end face 154 may be located on the same vertical plane. This arrangement facilitates the assembly of the inner ring ejector tube 101 and the outer ring ejector tube 102 with other structural parts. Of course, it is not excluded that the third end face 144 and the fourth end face 154 are not located on the same horizontal plane in order to facilitate the installation of other structural parts.

[0055] Combined with reference Figure 1 , Figure 2 and Figure 4 , the burner may further include a damper 310. The damper 310 may abut against the third end face 144 and the fourth end face 154. Such a configuration facilitates the damper 310 to be installed on the inner ring ejector tube 101 and the outer ring ejector tube 102. Further, since the third end face 144 is an end face away from the support seat 210 formed by the first matching edge 142 bending and covering the first extension edge 141, a gap is provided on the third end face 144, so that the gas entering the inner ring ejector tube 101 is fully mixed with the air. Since the fourth end face 154 is an end face away from the support seat 210 formed by the second matching edge 152 bending and covering the second extension edge 151, a gap is provided on the fourth end face 154, so that the gas entering the outer ring ejector tube 102 is fully mixed with the air.

[0056] Combined with reference Figures 1 to 5, the inner ring ejector tube 101 has a first port 1013 at one end away from the first end face 143, and a distance S1 is provided between the third end face 144 and the first port 1013, and the distance S1 is 4 mm to 6 mm. For example, the distance S1 can be 4 mm, 5 mm, or 6 mm, and the distance S1 is preferably 5 mm. When the distance between the third end face 144 and the first port 1013 is within this range, it is convenient to install the damper 310 to the inner ring ejector tube 101, and the air tightness of the inner ring ejector tube 101 is ensured. Avoid the distance S1 being too small to interfere with the installation of the damper 310, and avoid the distance S1 being too large to affect the air tightness of the inner ring ejector tube 101. The inner ring ejector tube 101 may have a gap between the first piece 110 and the first part 131 at the distance S1, so that the gas and air entering the inner ring ejector tube 101 are fully mixed.

[0057] Again, refer to Figures 1 to 5 , the outer ring ejector tube 102 has a second port 1023 at one end away from the second end face 153, and there is a distance S2 between the fourth end face 154 and the second port 1023, and the distance S2 is 4mm to 6mm. For example, the distance S2 can be 4mm, 5mm, 6mm, and the distance S2 is preferably 5mm. In this way, when the distance between the fourth end face 154 and the second port 1023 is within this range, it is convenient to install the damper 310 to the outer ring ejector tube 102, and the air tightness of the outer ring ejector tube 102 is ensured. Avoid the distance S2 being too small to interfere with the installation of the damper 310, and avoid the distance S2 being too large to affect the air tightness of the outer ring ejector tube 102. The outer ring ejector tube 102 can have a gap between the second piece 120 and the second part 132 at the distance S2, so that the gas entering the outer ring ejector tube 102 is fully mixed with the air.

[0058] According to another aspect of the present invention, a burner manufacturing method is provided, which is used to manufacture the burner as described above, comprising the steps of: stamping to form a first piece 110, a second piece 120 and a third piece 130. Pressing to form a first edge-binding structure 140 so that the first part 131 is connected to the first piece 110 to form an inner ring ejector tube 101, and pressing to form a second edge-binding structure 150 so that the second part 132 is connected to the second piece 120 to form an outer ring ejector tube 102.

[0059] The burner manufacturing method of the present invention omits complicated processes such as cutting, shrinking, expanding and rounding, truncating, flattening and pier reinforcement, thereby improving production efficiency and avoiding the risk of gas leakage caused by the bursting of the ejector tube due to the expansion operation.

[0060] Specifically, the inner ring ejector tube 101, the outer ring ejector tube 102, the support seat 210 and the damper 310 may be made of stainless steel to prevent the burner from being corroded by oil droplets on the inner ring ejector tube 101, the outer ring ejector tube 102, the support seat 210 or the damper 310. Of course, it is not excluded that the inner ring ejector tube 101, the outer ring ejector tube 102, the support seat 210 and the damper 310 are made of other materials.

[0061] The burner manufacturing method also includes the steps of: cutting stainless steel plates (not shown), cleaning the inner ring ejector tube 101 and the outer ring ejector tube 102, and leak testing the inner ring ejector tube 101 and the outer ring ejector tube 102; stamping the support seat 210, tapping the support seat 210 to form threaded holes and cleaning the support seat 210; and laser welding and assembling the various components of the burner, fully inspecting the burner, shaping the burner, cleaning the burner and leak testing the burner.

[0062] The manufacturing process of the burner of the present invention can be as follows:

[0063] S1, blanking a stainless steel plate, and then punching the blanked stainless steel plate to form a first piece 110, a second piece 120 and a third piece 130 respectively.

[0064] S2, pressing the edges to form a first edging structure 140 so that the first portion 131 is connected to the first piece 110 to form an inner ring ejector tube 101, and pressing the edges to form a second edging structure 150 so that the second portion 132 is connected to the second piece 120 to form an outer ring ejector tube 102.

[0065] S3, cleaning the inner ring ejector tube 101 and the outer ring ejector tube 102. Leakage detection of the inner ring ejector tube 101 and the outer ring ejector tube 102.

[0066] S4, stamping a stainless steel plate to form a support seat 210, tapping the support seat 210 to form a threaded hole, and then cleaning the support seat 210.

[0067] S5, assembling the support seat 210, the ejector tube assembly (including an integral part of the inner ring ejector tube 101 and the outer ring ejector tube 102), the ignition divider, etc. by laser welding to form a burner.

[0068] After S5, the steps of comprehensively inspecting the burner, cleaning the burner, and checking for burner leaks may also be included.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contour of each component itself.

[0070] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0072] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0073] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A burner, characterized in that: Includes the first, second and third items; The third piece comprises a first part and a second part, wherein the first part is connected to the first piece via a first edging structure to form an inner ring ejector tube, and the second part is connected to the second piece via a second edging structure to form an outer ring ejector tube.

2. The burner according to claim 1, characterized in that The first part and the second part are connected through a supporting connection part, and the first part, the supporting connection part and the second part are integrally formed.

3. The burner according to claim 1, characterized in that The first edging structure includes a first extension edge and a first mating edge, wherein the first extension edge extends outward from the outer wall surface of the first part, and the first mating edge extends outward from the outer wall surface of the first part for a first predetermined distance and then bends to cover the first extension edge; or the first extension edge extends outward from the outer wall surface of the first part, and the first mating edge extends outward from the outer wall surface of the first part for a first predetermined distance and then bends to cover the first extension edge.

4. The burner according to claim 1, characterized in that The second edging structure includes a second extension edge and a second mating edge, the second extension edge extends outward from the outer wall surface of the second part, and the second mating edge extends outward from the outer wall surface of the second part for a second predetermined distance and then bends to cover the second extension edge; or the second extension edge extends outward from the outer wall surface of the second part, and the second mating edge extends outward from the outer wall surface of the second part for a second predetermined distance and then bends to cover the second extension edge.

5. The burner according to claim 3, characterized in that The first predetermined distance is 3 mm to 8 mm.

6. The burner according to claim 4, characterized in that The second predetermined distance is 3 mm to 8 mm.

7. The burner according to claim 1, characterized in that The first edging structure forms a first end surface on the inner ring ejector tube, and the second edging structure forms a second end surface on the outer ring ejector tube. The first end surface and the second end surface are located on the same horizontal plane.

8. The burner according to claim 7, characterized in that The burner also includes a support seat, which is provided with a first mounting hole and a second mounting hole, the inner ring ejector pipe is passed through the first mounting hole, the outer ring ejector pipe is passed through the second mounting hole, and the bottom surface of the support seat is in contact with the first end surface and the second end surface.

9. The burner according to claim 8, characterized in that The inner ring ejector pipe is divided into a first section and a second section through the first end face in the gas flow direction, the first section passes through the first mounting hole, the second section is located below the support seat, and the first piece is welded to the first part on the first section.

10. The burner according to claim 9, characterized in that The first section has a first installation section, and the first installation section has a length L1, and the length L1 is 6 mm to 10 mm.

11. The burner according to claim 8, characterized in that The outer ring ejector pipe is divided into a third section and a fourth section through the second end face in the gas flow direction, the third section passes through the second mounting hole, the fourth section is located below the support seat, and the second piece is welded to the second part on the third section.

12. The burner according to claim 11, characterized in that The third section has a second installation section, the second installation section has a length L2, and the length L2 is 6 mm to 10 mm.

13. The burner according to claim 7, characterized in that The first edging structure further forms a third end surface on the inner ring ejector tube, and the second edging structure further forms a fourth end surface on the outer ring ejector tube, and the third end surface and the fourth end surface are located on the same vertical plane.

14. The burner according to claim 13, characterized in that The burner further includes a damper, and the damper abuts against the third end surface and the fourth end surface.

15. The burner according to claim 14, characterized in that The inner ring ejector tube has a first opening at an end away from the first end surface, and a distance S1 is provided between the third end surface and the first opening, and the distance S1 is 4 mm to 6 mm.

16. The burner according to claim 14, characterized in that The outer ring ejector tube has a second opening at one end away from the second end face, and a distance S2 is provided between the fourth end face and the second opening, and the distance S2 is 4 mm to 6 mm.

17. A burner manufacturing method, used for manufacturing the burner as claimed in any one of claims 1 to 16, characterized in that: Includes steps: stamping to form the first piece, the second piece, and the third piece; and The first edge structure is formed by pressing the edge so that the first part is connected with the first piece to form an inner ring ejector tube, and the second edge structure is formed by pressing the edge so that the second part is connected with the second piece to form an outer ring ejector tube.

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