Refractory brick mounting structure and heat exchanger

Abstract

The invention discloses a refractory brick mounting structure. The refractory brick mounting structure comprises a combustion seat, refractory bricks and at least one group of clamping structures, a gas mixing cylinder is installed on the inner surface of the combustion base. The refractory brick is provided with a first receding hole. The clamping structure is arranged between the fire-resistant rotor and the gas mixing cylinder and comprises a first mounting part and a second mounting part, the first mounting part is provided with a guide groove and a clamping groove, the clamping groove is formed in one side of the guide groove and communicates with the guide groove, and the second mounting part is provided with a protruding part capable of being clamped with the clamping groove in a matched mode; the protruding part can be embedded into the guide groove and move along the guide groove. When the protruding part moves to the position between the guide groove and the clamping groove, the refractory brick abuts against the inner surface of the combustion base, the protruding part can be rotationally clamped into or disengaged from the clamping groove, and therefore the refractory brick can be mounted or dismounted only by rotating the refractory brick, and the mounting and dismounting efficiency of the refractory brick is greatly improved. In addition, the invention further discloses a heat exchanger with the refractory brick mounting structure.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and in particular to a thermal insulation pad mounting structure and a heat exchanger. Background Art

[0002] The existing heat exchanger usually includes a shell, a spiral coil and a gas mixing cylinder. The shell has a combustion chamber, the spiral coil is installed in the combustion chamber and arranged along the inner peripheral wall of the shell, the upper side of the shell has a combustion seat, and the gas mixing cylinder is installed on the combustion seat and extends downward into the combustion chamber. The peripheral wall of the gas mixing cylinder is provided with a plurality of through holes. When in use, the gas enters the gas mixing cylinder from the air intake channel and flows out from the various through holes on the gas mixing cylinder. The ignition needle is located on the outside of the gas mixing cylinder to ignite and burn the gas flowing out from the through holes, so that the gas can burn in the combustion chamber and heat the spiral coil.

[0003] During the use of the heat exchanger, the combustion seat is usually in direct contact with the hot gas or heat source in the combustion chamber. In order to provide heat insulation protection for the combustion seat, refractory bricks are usually required to be set in the combustion chamber, and the refractory bricks are sleeved on the outer periphery of the gas mixing cylinder and installed on the gas seat. However, the existing technology usually directly installs the refractory bricks on the combustion seat through multiple screws. When installing or removing, each screw needs to be screwed in turn, which is troublesome and cumbersome. It also takes a long time to install and remove the refractory bricks, and the efficiency is low. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a refractory brick installation structure, which can facilitate the installation and removal of refractory bricks.

[0005] The present invention also provides a heat exchanger having the refractory brick installation structure.

[0006] According to an embodiment of the present invention, the refractory brick mounting structure comprises: a combustion seat, the inner surface of which is mounted with a mixing cylinder extending downward; a refractory brick, which is provided with a first clearance hole for the mixing cylinder to pass through; at least one group of clamping structures, arranged between the refractory turn and the mixing cylinder, the clamping structure comprising a first mounting portion and a second mounting portion that can cooperate and clamp with each other, one of the first mounting portion and the second mounting portion is arranged on the inner circumferential wall of the first clearance hole, and the other is arranged on the outer circumferential wall of the mixing cylinder; wherein, the first mounting portion is provided with a guide groove and a clamping groove, the clamping groove is arranged on one side of the guide groove and is connected to the guide groove, the second mounting portion is provided with a protrusion that can cooperate and clamp with the clamping groove, the protrusion can be embedded in the guide groove and move along the guide groove close to or away from the combustion seat; when the protrusion moves between the guide groove and the clamping groove, the refractory brick abuts against the inner surface of the combustion seat, and the protrusion can rotate to clamp into or out of the clamping groove.

[0007] The refractory brick installation structure according to the embodiment of the present invention has at least the following beneficial effects:

[0008] By adopting the refractory brick installation structure of the embodiment of the present invention, during installation, the gas mixing cylinder installed on the combustion seat can be passed through the first clearance hole of the refractory brick, and the protrusion of the first installation part can be embedded in the guide groove of the second installation part. Since the protrusion can move along the guide groove to approach the combustion seat, the refractory brick can be moved relative to the gas mixing cylinder in the direction close to the combustion seat. When the protrusion moves between the guide groove and the clamping groove, the refractory brick abuts against the inner surface of the combustion seat. At this time, the refractory brick can be rotated and the protrusion is rotated from the guide groove to the clamping groove, thereby limiting the protrusion in the clamping groove and fixing the refractory brick and the combustion seat relatively, thereby realizing the installation of the refractory brick. When the refractory brick needs to be disassembled, it is only necessary to rotate the refractory brick in the opposite direction so that the protrusion is disengaged from the clamping groove and rotated from the clamping groove to the guide groove, and then the refractory brick can be moved in the direction away from the combustion seat and disengaged from the gas mixing cylinder. Therefore, the refractory bricks can be fixed between the gas mixing cylinder and the combustion seat through the clamping structure, and the clamping or disengagement between the two can be achieved by simply rotating the refractory bricks relative to the gas mixing cylinder, thereby making the installation and removal of the refractory bricks simpler and more convenient, greatly improving the efficiency of the installation and removal of the refractory bricks.

[0009] According to some embodiments of the present invention, the first mounting portion is arranged on the inner circumferential wall of the first clearance hole, and the second mounting portion is arranged on the outer circumferential wall of the mixing cylinder; the guide groove is arranged along the axial direction of the first clearance hole and extends upward to the upper side wall passing through the refractory brick, and when the protrusion is inserted into the clamping groove, the protrusion abuts against the upper inner wall of the clamping groove.

[0010] According to some embodiments of the present invention, the snap-fit ​​groove is located at one side of the guide groove and is connected to the lower end of the guide groove, and both the guide groove and the snap-fit ​​groove extend downward to penetrate the lower side wall of the refractory brick.

[0011] According to some embodiments of the present invention, the protrusion and the gas mixing cylinder are an integrally formed structure.

[0012] According to some embodiments of the present invention, the first mounting portion is disposed on the outer circumferential wall of the mixing cylinder, and the second mounting portion is disposed on the inner circumferential wall of the first clearance hole; the guide groove is arranged along the axial direction of the mixing cylinder and extends downward to penetrate the lower side wall of the mixing cylinder, the clamping groove is located on one side of the guide groove and is connected to the upper end of the guide groove, and when the protrusion is clamped into the clamping groove, the protrusion abuts against the lower inner wall of the clamping groove.

[0013] According to some embodiments of the present invention, the number of the clamping structures is at least two groups, and all the clamping structures are arranged at intervals along the circumference of the mixing cylinder.

[0014] According to some embodiments of the present invention, all the clamping structures are evenly arranged along the circumference of the mixing cylinder.

[0015] According to some embodiments of the present invention, an ignition needle is further included, the refractory brick is provided with a second clearance hole adapted for the ignition needle, the ignition needle is installed on the combustion seat and penetrates the second clearance hole, and the ignition portion of the ignition needle is arranged adjacent to the outer peripheral wall of the mixing cylinder.

[0016] According to some embodiments of the present invention, the outer peripheral wall of the refractory brick is provided with a spiral portion for threaded connection with the inner wall of the threaded coil, and the spiral portion is arranged along the circumference of the refractory brick.

[0017] The heat exchanger according to the embodiment of the present invention is provided with the refractory brick mounting structure according to any one of the above embodiments.

[0018] The heat exchanger according to the embodiment of the present invention has at least the following beneficial effects:

[0019] In the heat exchanger of the embodiments of the present invention, by adopting the refractory brick installation structure of any of the above-mentioned embodiments, the refractory brick can be fixed between the gas mixing cylinder and the combustion seat through the clamping structure, and the clamping or disengagement between the two can be achieved by simply rotating the refractory brick relative to the gas mixing cylinder, thereby making the installation of the refractory brick simpler and more convenient, thereby greatly improving the installation efficiency of the heat exchanger.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A schematic diagram of a refractory brick installation structure according to an embodiment of the present invention;

[0023] Figure 2 Another schematic diagram of the refractory brick installation structure according to an embodiment of the present invention;

[0024] Figure 3 It is an exploded schematic diagram of a refractory brick installation structure according to an embodiment of the present invention;

[0025] Figure 4 It is a cross-sectional schematic diagram of a refractory brick installation structure according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A;

[0027] Figure 6 It is a schematic diagram of a partial structural cross-section of a refractory brick installation structure according to an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a refractory brick according to an embodiment of the present invention;

[0029] Figure 8 Schematic diagram of a gas mixing cylinder according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] Combustion seat 100, inner surface 110, mounting hole 120, ignition needle 130;

[0032] The mixing cylinder 200, the second clamping portion 210, and the raised portion 211;

[0033] Refractory brick 300 , first easing hole 301 , second easing hole 302 , first clamping portion 310 , guide groove 311 , clamping groove 312 , upper inner wall 313 , spiral portion 320 . DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference Figures 1 to 8 One embodiment of the present invention provides a refractory brick mounting structure, which includes a combustion seat 100, a refractory brick 300 and at least one set of clamping structures. A downwardly extending mixing cylinder 200 is mounted on the inner surface 110 of the combustion seat 100. The refractory brick 300 is provided with a first clearance hole 301 for the mixing cylinder 200 to pass through. The clamping structure is arranged between the refractory turn and the mixing cylinder 200, and the clamping structure includes a first mounting portion and a second mounting portion that can be clamped together, the first mounting portion is arranged on the inner peripheral wall of the first clearance hole 301, and the second mounting portion is arranged on the outer peripheral wall of the mixing cylinder 200. The first mounting portion is provided with a guide groove 311 and a clamping groove 312, the clamping groove 312 is provided at one side of the guide groove 311 and communicates with the guide groove 311, and the second mounting portion is provided with a protrusion 211 that can be engaged with the clamping groove 312, and the protrusion 211 can be embedded in the guide groove 311 and move along the guide groove 311 to approach or move away from the combustion seat 100. When the protrusion 211 moves between the guide groove 311 and the clamping groove 312, the refractory brick 300 abuts against the inner surface 110 of the combustion seat 100, and the protrusion 211 can rotate to engage in or disengage from the clamping groove 312.

[0039] In the refractory brick installation structure of the embodiment of the present invention, since the mixing cylinder 200 is installed on the inner surface 110 of the combustion seat 100, at least one set of clamping structures can be set between the mixing cylinder 200 and the refractory brick 300, and the refractory brick 300 can be installed on the combustion seat 100 through the clamping structure. Specifically, during installation, the mixing cylinder 200 installed on the combustion seat 100 can be passed through the first clearance hole 301 of the refractory brick 300, and the protrusion 211 of the first mounting part can be embedded in the guide groove 311 of the second mounting part. Since the protrusion 211 can move along the guide groove 311 to approach the combustion seat 100, the refractory brick 300 can be moved relative to the mixing cylinder 200 in the direction close to the combustion seat 100. When the protrusion 211 moves between the guide groove 311 and the clamping groove 312, the refractory brick 300 abuts against the inner surface 110 of the combustion seat 100. At this time, the refractory brick 300 can be rotated and the protrusion 211 can be rotated from the guide groove 311 to be clamped into the clamping groove 312, thereby limiting the protrusion 211 in the clamping groove 312 and making the refractory brick 300 relatively fixed to the combustion seat 100, thereby realizing the installation of the refractory brick 300. When the refractory brick 300 needs to be disassembled, the refractory brick 300 only needs to be rotated in the opposite direction so that the protrusion 211 is disengaged from the clamping groove 312 and rotated from the clamping groove 312 to the guide groove 311, and then the refractory brick 300 can be moved in a direction away from the combustion seat 100 and disengaged from the gas mixing cylinder 200. It can be seen that, compared with the prior art that requires screwing multiple screws, the refractory brick installation structure of the embodiment of the present invention can fix the refractory brick 300 between the gas mixing cylinder 200 and the combustion seat 100 through the clamping structure, and the clamping or disengagement between the two can be achieved by rotating the refractory brick 300 relative to the gas mixing cylinder 200, thereby making the installation and removal of the refractory brick 300 simpler and more convenient, and greatly improving the efficiency of the installation and removal of the refractory brick 300.

[0040] It is understandable that the first mounting portion is disposed on the inner peripheral wall of the first clearance hole 301, and the second mounting portion is disposed on the outer peripheral wall of the mixing cylinder 200. Figures 1 to 8 As an exemplary illustration, in some embodiments, the first mounting portion may be disposed on the outer circumferential wall of the mixing cylinder 200, and the second mounting portion may be disposed on the inner circumferential wall of the first clearance hole 301, and the present invention does not make any specific limitation on this.

[0041] Reference Figures 1 to 8In some embodiments, the first mounting portion is arranged on the inner circumferential wall of the first clearance hole 301, and the second mounting portion is arranged on the outer circumferential wall of the mixing cylinder 200; the guide groove 311 is arranged along the axial direction of the first clearance hole 301 and extends upward to the upper side wall penetrating the refractory brick 300, the clamping groove 312 is located on one side of the guide groove 311 and is connected to the lower end of the guide groove 311, and when the protrusion 211 is clamped into the clamping groove 312, the protrusion 211 abuts against the upper inner wall 313 of the clamping groove 312.

[0042] In the above structure, by arranging the guide groove 311 along the axial direction of the first clearance hole 301 and extending it upward to penetrate the upper side wall of the refractory brick 300, the refractory brick 300 can be sleeved on the mixing cylinder 200 from bottom to top, and the protrusion 211 on the mixing cylinder 200 can be smoothly embedded in the guide groove 311 from the upper end of the guide groove 311, thereby making the installation of the refractory brick 300 more convenient and quick. In addition, when the protrusion 211 is inserted into the snap-in groove 312, the refractory brick 300 abuts against the inner surface 110 of the combustion seat 100, and the protrusion 211 abuts against the upper inner wall 313 of the snap-in groove 312, so that the refractory brick 300 can abut against the inner surface 110 of the combustion seat 100 upward, and abut against the protrusion 211 of the mixing cylinder 200 downward through the upper inner wall 313 of the snap-in groove 312, thereby the refractory brick 300 can be clamped between the protrusion 211 and the inner surface 110 of the combustion seat 100, and the refractory brick 300 can be stably installed between the mixing cylinder 200 and the combustion seat 100.

[0043] It is understood that the guide groove 311 is arranged along the axial direction of the mixing cylinder 200, specifically, the guide groove 311 is a straight groove arranged in the up-down direction, so that when the protrusion 211 is inserted into the guide groove 311, the refractory brick 300 can be directly moved upward or downward in a straight line, and the operation is simpler and more convenient. Figures 1 to 8 As an exemplary illustration, in some embodiments, the guide groove 311 can be set as a straight groove arranged along the axial direction of the mixing cylinder 200, or as a curved groove, that is, the guide groove 311 is curved in the axial direction of the mixing cylinder 200, which is not specifically limited in the present invention. When the guide groove 311 is a curved groove, in the process of the protrusion 211 being embedded in the guide groove 311 and moving along the guide groove 311, the refractory brick 300 will rotate relative to the mixing cylinder 200 while moving upward relative to the mixing cylinder 200.

[0044] Reference Figures 1 to 8 In some embodiments, the snap-fit ​​groove 312 is located on one side of the guide groove 311 and is connected to the lower end of the guide groove 311 . Both the guide groove 311 and the snap-fit ​​groove 312 extend downward to penetrate the lower side wall of the refractory brick 300 .

[0045] In the above structure, by connecting the clamping groove 312 with the lower end of the guide groove 311, when installing the refractory brick 300, the refractory brick 300 can be moved upward relative to the gas mixing cylinder 200 until the protrusion 211 moves to the lower end of the guide groove 311, and then the refractory brick 300 can be rotated to rotate the protrusion 211 to be clamped into the clamping groove 312. In addition, by extending the guide groove 311 downward to the lower side wall that passes through the refractory brick 300, since the guide groove 311 is arranged along the axial direction of the first clearance hole 301 and extends upward to the upper side wall that passes through the refractory brick 300, the guide groove 311 forms a through groove that passes through the entire refractory brick 300 in the up-down direction, thereby facilitating the opening and processing of the guide groove 311. In addition, by extending the snap-in groove 312 downward to penetrate the lower side wall of the refractory brick 300, the snap-in groove 312 can be processed from the lower side wall of the refractory brick 300, making the opening and processing of the snap-in groove 312 more convenient, thereby making the structure of the refractory brick 300 simpler and facilitating the production and processing of the refractory brick 300.

[0046] It can be understood that the above-mentioned snap-in groove 312 extends downward to penetrate the lower side wall of the refractory brick 300, which is merely an exemplary description of a preferred embodiment of the present invention. In some embodiments, the snap-in groove 312 can also be directly opened on the inner wall of the first give way hole 301 and isolated from the lower side wall of the refractory brick 300. At this time, the snap-in groove 312 also has a lower inner wall. At this time, the thickness of the snap-in groove 312 can be set to match the thickness of the protrusion 211. Thus, when the protrusion 211 is snapped into the snap-in groove 312, the protrusion 211 can be confined in the snap-in groove 312 and the protrusion 211 can be simultaneously abutted against the upper inner wall 313 and the lower inner wall of the snap-in groove 312, so that the refractory brick 300 can be directly and stably installed on the outer peripheral wall of the mixing cylinder 200 through the protrusion 211, so that the installation of the refractory brick 300 is more firm and stable.

[0047] Reference Figures 1 to 8 In some embodiments, the protrusion 211 and the mixing cylinder 200 are an integrally formed structure.

[0048] In the above structure, by setting the protrusion 211 and the mixing cylinder 200 as an integrally formed structure, it is not only beneficial to improve the structural strength of the mixing cylinder 200, making the installation of the refractory brick 300 more stable, but also can reduce the number of parts that need to be assembled in the refractory brick installation structure, which is beneficial to further improve the installation efficiency of the refractory brick 300.

[0049] It is understandable that, referring to Figures 3 to 8The protrusion 211 can be specifically formed by stamping on the outer peripheral wall of the mixing cylinder 200. Of course, in addition to this, the protrusion 211 can also be formed into an integral structure with the mixing cylinder 200 by casting or other molding methods, and the present invention does not make specific limitations on this.

[0050] In some embodiments, the first mounting portion may be disposed on the outer circumferential wall of the mixing cylinder 200, and the second mounting portion may be disposed on the inner circumferential wall of the first clearance hole 301. At this time, the guide groove 311 may be arranged along the axial direction of the mixing cylinder 200 and extended downward to penetrate the lower side wall of the mixing cylinder 200. The snap-fitting groove 312 is located on one side of the guide groove 311 and is connected to the upper end of the guide groove 311. When the protrusion 211 is snapped into the snap-fitting groove 312, the protrusion 211 abuts against the lower inner wall of the snap-fitting groove 312.

[0051] In the above structure, by arranging the guide groove 311 along the axial direction of the mixing cylinder 200 and extending it downward to penetrate the lower side wall of the mixing cylinder 200, the refractory brick 300 can be sleeved on the mixing cylinder 200 from bottom to top, and the protrusion 211 on the refractory brick 300 can be smoothly embedded in the guide groove 311 from the lower end of the guide groove 311, thereby making the installation of the refractory brick 300 more convenient and quick. In addition, when the protrusion 211 is inserted into the snap-in groove 312, the refractory brick 300 abuts against the inner surface 110 of the combustion seat 100, and the protrusion 211 abuts against the lower inner wall of the snap-in groove 312, so that the refractory brick 300 can abut against the inner surface 110 of the combustion seat 100 upward, and abut against the lower inner wall of the snap-in groove 312 on the mixing cylinder 200 downward through the protrusion 211, thereby the refractory brick 300 can be clamped between the inner surface 110 of the combustion seat 100 and the lower inner wall of the snap-in groove 312, and the refractory brick 300 can be stably installed between the mixing cylinder 200 and the combustion seat 100.

[0052] Reference Figures 1 to 8 In some embodiments, the number of the clamping structures is four groups, and all the clamping structures are arranged at intervals along the circumference of the mixing cylinder 200 .

[0053] In the above structure, by providing four sets of snap-fit ​​structures, the refractory bricks 300 can be installed between the gas mixing cylinder 200 and the combustion seat 100 through the four sets of snap-fit ​​structures, thereby making the installation of the refractory bricks 300 more firm and stable.

[0054] It is understandable that the number of the above-mentioned clamping structures is four, which is only for Figures 1 to 8 In order to improve the installation stability of the refractory brick 300, the number of the clamping structures may be two, three, five or more groups in addition to four groups, and the present invention does not make any specific limitation on this.

[0055] Reference Figures 1 to 8 In some embodiments, all the clamping structures are evenly arranged along the circumference of the mixing cylinder 200 .

[0056] In the above structure, by evenly arranging all the clip structures along the circumference of the mixing cylinder 200, the first clip parts 310 of each group of clip structures can be clipped with the second clip parts 210 of any other group of clip structures. When installing the refractory bricks 300, it is only necessary to align one of the first clip parts 310 with one of the second clip parts 210 and clip them together, thereby making the installation of the refractory bricks 300 more convenient and simple.

[0057] Reference Figures 1 to 8 In some embodiments, the refractory brick mounting structure also includes an ignition needle 130, and the refractory brick 300 is provided with a second clearance hole 302 adapted to the ignition needle 130, the ignition needle 130 is installed on the combustion seat 100 and penetrates the second clearance hole 302, and the ignition part of the ignition needle 130 is arranged adjacent to the outer peripheral wall of the mixing cylinder 200.

[0058] By adopting the above structure, the setting of the ignition needle 130 can facilitate the ignition and combustion of the gas flowing out from the through hole on the peripheral wall of the mixing cylinder 200. By installing the ignition needle 130 on the combustion seat 100 and passing it through the second clearance hole 302 of the refractory brick 300, the setting of the ignition needle 130 can not only improve the installation connection between the refractory brick 300 and the combustion seat 100 to be more compact and stable, but also facilitate the positioning and installation of the refractory brick 300.

[0059] It is understandable that, referring to Figures 1 to 8 The number of the ignition needles 130 is two. Of course, in addition to this, the number of the ignition needles 130 may also be one, three or more, which is not specifically limited in the present invention.

[0060] It is understandable that, referring to Figures 1 to 8 The ignition needle 130 is installed on the combustion seat 100. Specifically, the combustion seat 100 is provided with a mounting hole 120 corresponding to the ignition needle 130, and the ignition needle 130 is fixedly installed in the mounting hole 120. The ignition needle 130 can be installed in the mounting hole 120 by a mounting structure such as a screw fastener or a clamping member, which is not specifically limited in the present invention.

[0061] Reference Figures 1 to 8 In some embodiments, the outer peripheral wall of the refractory brick 300 is provided with a spiral portion 320 for threading with the inner wall of the threaded coil, and the spiral portion 320 is arranged along the circumference of the refractory brick 300 .

[0062] In the above structure, by providing a spiral portion 320 on the outer peripheral wall of the refractory brick 300, when the combustion seat 100 and the refractory brick 300 are installed in the shell of the heat exchanger, the refractory brick 300 can be screwed into the threaded coil through the spiral portion 320 and threadedly connected to the inner wall of the threaded coil, thereby making the installation of the refractory brick 300 in the heat exchanger more firm and stable.

[0063] An embodiment of the present invention further provides a heat exchanger, wherein the heat exchanger is provided with the refractory brick mounting structure of any of the above embodiments.

[0064] In the heat exchanger of the embodiment of the present invention, by adopting the refractory brick installation structure of any of the above-mentioned embodiments, the refractory brick 300 can be fixed between the mixing cylinder 200 and the combustion seat 100 through the clamping structure, and the clamping or disengagement between the two can be achieved by simply rotating the refractory brick 300 relative to the mixing cylinder 200, thereby making the installation of the refractory brick 300 simpler and more convenient, thereby greatly improving the installation efficiency of the heat exchanger.

[0065] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Refractory brick installation structure, characterized in that: include: A combustion seat (100), wherein an inner surface (110) of the combustion seat (100) is provided with an air mixing cylinder (200) extending downward; The refractory brick (300) is provided with a first clearance hole (301) for the gas mixing cylinder (200) to pass through; At least one set of clamping structures is provided between the refractory rotor and the gas mixing cylinder (200), the clamping structure comprising a first mounting portion and a second mounting portion that can be mutually engaged, one of the first mounting portion and the second mounting portion being provided on the inner peripheral wall of the first clearance hole (301), and the other being provided on the outer peripheral wall of the gas mixing cylinder (200); The first mounting portion is provided with a guide groove (311) and a clamping groove (312); the clamping groove (312) is provided at one side of the guide groove (311) and is connected to the guide groove (311); the second mounting portion is provided with a protrusion (211) capable of being engaged with the clamping groove (312); the protrusion (211) can be embedded in the guide groove (311) and move along the guide groove (311) to approach or move away from the combustion seat (100); When the protrusion (211) moves between the guide groove (311) and the engaging groove (312), the refractory brick (300) abuts against the inner surface (110) of the combustion seat (100), and the protrusion (211) can be rotated to engage in or disengage from the engaging groove (312).

2. The refractory brick installation structure according to claim 1, characterized in that: The first mounting portion is arranged on the inner peripheral wall of the first clearance hole (301), and the second mounting portion is arranged on the outer peripheral wall of the mixing cylinder (200); The guide groove (311) is arranged along the axial direction of the first clearance hole (301) and extends upward to penetrate the upper side wall of the refractory brick (300); when the protrusion (211) is inserted into the clamping groove (312), the protrusion (211) abuts against the upper inner wall (313) of the clamping groove (312).

3. The refractory brick installation structure according to claim 2, characterized in that: The clamping groove (312) is located at one side of the guide groove (311) and is connected to the lower end of the guide groove (311). Both the guide groove (311) and the clamping groove (312) extend downward to penetrate the lower side wall of the refractory brick (300).

4. The refractory brick installation structure according to claim 2, characterized in that: The raised portion (211) and the gas mixing cylinder (200) are an integrally formed structure.

5. The refractory brick installation structure according to claim 1, characterized in that: The first mounting portion is arranged on the outer peripheral wall of the mixing cylinder (200), and the second mounting portion is arranged on the inner peripheral wall of the first clearance hole (301); The guide groove (311) is arranged along the axial direction of the mixing cylinder (200) and extends downward to penetrate the lower side wall of the mixing cylinder (200); the clamping groove (312) is located on one side of the guide groove (311) and is connected to the upper end of the guide groove (311); when the protruding portion (211) is clamped into the clamping groove (312), the protruding portion (211) abuts against the lower inner wall of the clamping groove (312).

6. The refractory brick installation structure according to any one of claims 1 to 5, characterized in that: The number of the clamping structures is at least two groups, and all the clamping structures are arranged at intervals along the circumference of the mixing cylinder (200).

7. The refractory brick installation structure according to claim 6, characterized in that: All the clamping structures are evenly arranged along the circumference of the gas mixing cylinder (200).

8. The refractory brick installation structure according to claim 1, characterized in that: It also includes an ignition needle (130), the refractory brick (300) is provided with a second clearance hole (302) adapted to the ignition needle (130), the ignition needle (130) is installed on the combustion seat (100) and penetrates the second clearance hole (302), and the ignition part of the ignition needle (130) is arranged adjacent to the outer peripheral wall of the mixing cylinder (200).

9. The refractory brick installation structure according to claim 1, characterized in that: The outer peripheral wall of the refractory brick (300) is provided with a spiral portion (320) for threading with the inner wall of the threaded coil, and the spiral portion (320) is arranged along the circumference of the refractory brick (300).

10. A heat exchanger, characterized in that A refractory brick installation structure according to any one of claims 1 to 9 is provided.

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