Mounting structure of burner ceramic tube in gas burner

Abstract

The utility model discloses a mounting structure of a burner ceramic tube in a gas burner, which is characterized in that a mounting flange is fixed in a burner shell, and an annular groove is arranged on the mounting flange; a burner ceramic tube penetrates through the inner side of the mounting flange; a high-temperature-resistant sealing ring is sleeved on the burner ceramic tube and can be embedded in the annular groove; a flange edge is arranged at the bottom of the burner ceramic tube, and one end of the flange edge is embedded in the annular groove and abuts against the high-temperature-resistant sealing ring. The hold-down ring is elastically connected with the mounting flange; and the hold-down ring is used for tightly pressing the burner ceramic tube on the mounting flange. The flange edge on the burner ceramic tube can be embedded in the annular groove and abut against the high-temperature-resistant sealing ring, the pressing ring is elastically connected with the mounting flange, and the pressing ring abuts against the flange edge, so that the burner ceramic tube is pressed; the connection sealing performance of the burner ceramic tube is ensured, and meanwhile, the burner ceramic tube cannot be damaged due to excessive extrusion during installation; when the burner ceramic tube is subjected to thermal deformation, the thermal deformation of the burner ceramic tube can be compensated.

Description

Technical Field

[0001] This utility model relates to the field of gas burners, and more specifically to an installation structure for the burner ceramic tube in a gas burner. Background Technology

[0002] Ceramic materials are resistant to high temperatures and corrosion. Currently, ceramic burner tubes, heat exchangers and other tubular fittings are widely used in industrial furnace gas burners. However, due to the high brittleness of ceramic materials, the existing rigid connection installation structure of burner ceramic tubes can easily lead to damage during installation. At the same time, under high temperature conditions, the thermal deformation stress of burner ceramic tubes cannot be compensated or released, making burner ceramic tubes prone to crushing under pressure.

[0003] Therefore, how to provide an installation structure for the ceramic tube of a gas burner that can overcome the above-mentioned problems is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides an installation structure for the ceramic tube of a gas burner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An installation structure for a burner ceramic tube in a gas burner is disclosed. The gas burner includes a burner shell, a burner ceramic tube, a gas pipe, an ignition electrode, and a swirl plate. The burner shell has a combustion air inlet and a gas inlet. The combustion air inlet communicates with the interior of the burner ceramic tube. The gas pipe is located inside the burner ceramic tube, one end of which is fixed to the burner shell and communicates with the gas inlet. The ignition electrode is mounted on the burner shell, and the swirl plate is located inside the burner ceramic tube. The swirl plate is hermetically connected to the gas pipe, and the discharge end of the ignition electrode extends into the ignition chamber of the swirl plate. A mounting flange is fixed inside the burner shell. An annular groove is coaxially formed on one end wall of the mounting flange, the annular groove penetrating the inner side wall and one end wall of the mounting flange; the burner ceramic tube passes through the inner side of the mounting flange; a high-temperature resistant sealing ring is tightly fitted on the outer side of the burner ceramic tube, the high-temperature resistant sealing ring being able to be embedded in the annular groove; a flange edge is coaxially formed at the bottom of the burner ceramic tube, one end of the flange edge being able to be coaxially embedded in the annular groove and abutting against one end wall of the high-temperature resistant sealing ring; a clamping ring is coaxially arranged with the mounting flange and the two are elastically connected, the clamping ring being able to move elastically along the axis of the mounting flange, and one end wall of the clamping ring being able to abut against the end wall of the flange edge away from the high-temperature resistant sealing ring.

[0007] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an installation structure for the burner ceramic tube in a gas burner. The mounting flange in this application has an annular groove, in which a high-temperature resistant sealing ring is arranged. The flange edge on the burner ceramic tube can be embedded in the annular groove and abut against the high-temperature resistant sealing ring. The clamping ring is elastically connected to the mounting flange and abuts against the flange edge. The above design ensures the sealing performance of the burner ceramic tube connection while providing a flexible connection between the burner ceramic tube and the mounting flange. The burner ceramic tube will not be damaged by excessive compression during installation. At the same time, when the burner ceramic tube undergoes thermal deformation, it can still ensure the sealing performance of its connection with the mounting flange. The thermal deformation of the burner ceramic tube can be compensated, thereby preventing it from being crushed and cracked.

[0008] Preferably, the high-temperature resistant sealing ring has a circular or elliptical cross-section. The high-temperature resistant sealing ring is elastic and can undergo elastic deformation, reliably fitting against the end wall of the flange and the bottom wall of the annular groove.

[0009] Preferably, the assembly further includes a stud, a spring, a washer, and a nut. The end wall of the mounting flange has multiple threaded holes evenly arranged along the circumference of the mounting flange, and each threaded hole contains a stud. The end wall of the clamping ring has multiple through holes aligned with the threaded holes, and each through hole contains a stud. Each stud is fitted with a spring and a washer, the spring being located between the clamping ring and the washer, and the clamping ring being located between the flange edge and the spring. The flange edge and the spring abut against the two end walls of the clamping ring. Each stud is screwed with a nut, and the washer is located between the nut and the spring. The clamping ring and the mounting flange are reliably and elastically connected, and the clamping ring reliably clamps the flange edge. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0011] Figure 1 This is a cross-sectional schematic diagram of the installation structure of the burner ceramic tube in a gas burner;

[0012] Figure 2 This is a cross-sectional schematic diagram of the assembled installation structure of the ceramic tube in a gas burner.

[0013] Figure 3 This is a front view of the mounting flange in the installation structure of the burner ceramic tube in a gas burner;

[0014] Figure 4 This is a front view of the clamping ring in the installation structure of the ceramic tube of a gas burner.

[0015] In the diagram:

[0016] 1 is the burner housing, 2 is the burner ceramic tube, 3 is the gas pipe, 4 is the ignition electrode, 5 is the mounting flange, 6 is the swirl plate, 7 is the high-temperature resistant sealing ring, 8 is the clamping ring, 9 is the double-ended stud, 10 is the spring, 11 is the washer, 12 is the nut, 13 is the gas inlet, 14 is the combustion air inlet, and 15 is the combustion chamber. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] This utility model discloses an installation structure for the ceramic tube of a gas burner. The mounting flange 5 has an annular groove, in which a high-temperature resistant sealing ring 7 is arranged. The flange edge of the ceramic tube 2 can be fitted into the annular groove and press against the high-temperature resistant sealing ring 7. A clamping ring 8 is elastically connected to the mounting flange 5, and the clamping ring 8 presses against the flange edge. This design ensures the sealing performance of the ceramic tube 2 connection while providing a flexible connection between the ceramic tube 2 and the mounting flange 5. The ceramic tube 2 will not be damaged by excessive compression during installation. At the same time, even when the ceramic tube 2 undergoes thermal deformation, it can still maintain the sealing performance of its connection with the mounting flange 5. The thermal deformation of the ceramic tube 2 can be compensated, thereby preventing it from cracking due to compression.

[0019] By designing a double-ended stud 9, a spring 10, a washer 11, and a nut 12, the clamping ring 8 can reliably press against the flange edge, and the pressure applied to the flange edge by the clamping ring 8 is controllable. The above installation structure is simple and reliable. Under the condition that the gas and combustion air are smoothly connected, the burner ceramic tube 2 can be reliably connected to the burner housing 1 and other components.

[0020] Example

[0021] See appendix Figure 1-4This is a schematic diagram of the overall and partial structure of one embodiment of the present invention. Specifically, the present invention discloses an installation structure for the ceramic tube of a gas burner. The gas burner includes a burner shell 1, a ceramic tube 2, a gas pipe 3, an ignition electrode 4, and a swirl plate 6. The burner shell 1 is provided with a combustion air inlet 14 and a gas inlet 13; the combustion air inlet 14 is internally connected to the ceramic tube 2; the gas pipe 3 is located inside the ceramic tube 2, one end of the gas pipe 3 is fixed to the burner shell 1, and the gas pipe 3 is connected to the gas inlet 13; the ignition electrode 4 is installed on the burner shell 1, the swirl plate 6 is located inside the ceramic tube 2, the swirl plate 6 is airtightly connected to the gas pipe 3, the discharge end of the ignition electrode 4 extends into the ignition chamber of the swirl plate 6, and the ignition electrode 4 can be electrically connected to an external ignition transformer; the space between the swirl plate 6 and the end of the ceramic tube 2 furthest from the burner shell 1 forms a combustion chamber 15, and the ignition chamber of the swirl plate 6 is connected to the combustion chamber 15.

[0022] The gas and combustion air enter the combustion chamber 15 and burn after passing through the swirl plate 6; the discharge end of the ignition electrode 4 is located inside the ignition chamber, and the gas pipe 3 is connected to the ignition chamber. After the gas pipe 3 is energized, the ignition electrode 4 first ignites the gas in the ignition chamber, and the combustion of the gas in the ignition chamber ignites the gas in the entire combustion chamber 15.

[0023] A mounting flange 5 is fixed inside the burner housing 1. An annular groove is coaxially formed on one end wall of the mounting flange 5, and the annular groove penetrates the inner side wall and one end wall of the mounting flange 5. A burner ceramic tube 2 is inserted through the inner side of the mounting flange 5. A high-temperature resistant sealing ring 7 is tightly fitted on the outer side of the burner ceramic tube 2, and the high-temperature resistant sealing ring 7 can be embedded in the annular groove. A flange edge is coaxially formed at the bottom of the burner ceramic tube 2, and one end of the flange edge can be coaxially embedded in the annular groove and abut against one end wall of the high-temperature resistant sealing ring 7. A clamping ring 8 is coaxially arranged with the mounting flange 5 and the two are elastically connected. The clamping ring 8 can move elastically along the axis of the mounting flange 5, and one end wall of the clamping ring 8 can abut against the end wall of the flange edge away from the high-temperature resistant sealing ring 7.

[0024] The high-temperature resistant sealing ring 7 serves two purposes: firstly, it provides a seal, and secondly, it prevents the burner ceramic tube 2 from directly contacting the metal mounting flange 5, thus avoiding damage to the brittle burner ceramic tube 2.

[0025] The high-temperature resistant sealing ring 7 has a circular or elliptical cross-section. In this embodiment, the high-temperature resistant sealing ring 7 is a high-temperature resistant O-ring, that is, the high-temperature resistant sealing ring 7 has a circular cross-section.

[0026] More specifically, it also includes a double-ended stud 9, a spring 10, a washer 11, and a nut 12. The end wall of the mounting flange 5 is provided with multiple threaded holes, which are evenly arranged along the circumference of the mounting flange 5. A double-ended stud 9 is screwed into each threaded hole. The end wall of the clamping ring 8 is provided with multiple circular through holes, which are aligned with the positions of the threaded holes. A double-ended stud 9 passes through each through hole. A spring 10 and a washer 11 are fitted on each double-ended stud 9. The spring 10 is located between the clamping ring 8 and the washer 11. The clamping ring 8 and the washer 11 can clamp the spring 10. The clamping ring 8 is located between the flange edge and the spring 10. The flange edge and the spring 10 abut against the two end walls of the clamping ring 8. A nut 12 is screwed onto each double-ended stud 9. The washer 11 is located between the nut 12 and the spring 10. The clamping ring 8 can elastically clamp the flange edge, avoiding the flange edge from breaking due to excessive pressure during installation. Under the premise of ensuring reliable fixation of the burner ceramic tube 2, the burner ceramic tube 2 will not loosen or break due to cold and heat deformation.

[0027] The combustion air entering the burner ceramic tube 2 needs to pass through the swirl plate 6 before entering the combustion chamber 15.

[0028] The outer diameter of the high-temperature resistant sealing ring 7 fitted on the burner ceramic tube 2 is less than or equal to the outer diameter of the flange edge.

[0029] During installation, the high-temperature resistant sealing ring 7 is first placed on the burner ceramic tube 2. Then, the burner ceramic tube 2 with the high-temperature resistant sealing ring 7 is inserted into the mounting flange 5, ensuring that one end of the flange edge can be embedded in the annular groove and press against the high-temperature resistant sealing ring 7. Finally, the double-ended stud 9, the clamping ring 8, the spring 10, the washer 11, and the nut 12 are installed in sequence to achieve reliable fixing of the burner ceramic tube 2 and the mounting flange 5.

[0030] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mounting structure of a burner ceramic tube in a gas burner, the gas burner comprising a burner shell (1), a burner ceramic tube (2), a gas tube (3), an ignition electrode (4) and a swirl disc (6), the burner shell (1) being provided with a combustion air inlet (14) and a gas inlet (13); the combustion air inlet (14) being in communication with the inside of the burner ceramic tube (2); the gas tube (3) being located inside the burner ceramic tube (2), one end of the gas tube (3) being fixed to the burner shell (1), the gas tube (3) being in communication with the gas inlet (13); the ignition electrode (4) being mounted on the burner shell (1), the swirl disc (6) being located inside the burner ceramic tube (2), the swirl disc (6) being in airtight connection with the gas tube (3), the discharge end of the ignition electrode (4) extending into the ignition cavity of the swirl disc (6); characterized in that, The burner shell (1) is fixed with a mounting flange (5), one end wall of the mounting flange (5) is coaxially provided with an annular groove, the annular groove penetrates the inner side wall and one end wall of the mounting flange (5); the mounting flange (5) is provided with the burner ceramic tube (2) on the inner side; the outer side of the burner ceramic tube (2) is tightly sleeved with a high-temperature-resistant sealing ring (7), the high-temperature-resistant sealing ring (7) can be embedded in the annular groove; the bottom of the burner ceramic tube (2) is coaxially provided with a flange edge, one end of the flange edge can be coaxially embedded in the annular groove and abut against one end wall of the high-temperature-resistant sealing ring (7); a compression ring (8) is coaxially arranged with the mounting flange (5) and elastically connected with the mounting flange (5), the compression ring (8) can elastically move along the axial line of the mounting flange (5), one end wall of the compression ring (8) can abut against the flange edge away from one end wall of the high-temperature-resistant sealing ring (7).

2. A mounting structure of a burner ceramic tube in a gas burner according to claim 1, characterized in that, The cross section of the high-temperature-resistant sealing ring (7) is circular or elliptical.

3. A mounting structure of a burner ceramic tube in a gas burner according to claim 1, characterized in that, It also includes a stud (9), a spring (10), a washer (11) and a nut (12), the end wall of the mounting flange (5) is provided with a plurality of threaded holes, the plurality of threaded holes are uniformly arranged along the circumference of the mounting flange (5), one stud (9) is screwed in each threaded hole; the end wall of the compression ring (8) is provided with a plurality of through holes, the plurality of through holes can be respectively opposite to the plurality of threaded holes, one stud (9) is penetrated in each through hole; one spring (10) and one washer (11) are sleeved on each stud (9), the spring (10) is located between the compression ring (8) and the washer (11), the compression ring (8) is located between the flange edge and the spring (10), the flange edge and the spring (10) abut against the two end walls of the compression ring (8) respectively; one nut (12) is screwed on each stud (9), the washer (11) is located between the nut (12) and the spring (10).

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