High-reliability integrated infrared burner

Abstract

The invention belongs to the technical field of infrared combustors, and provides a high-reliability integrated infrared combustor which comprises an infrared burner, an infrared combustion plate, a double-needle assembly and an ignition electrode assembly. The infrared furnace end comprises a central bracket, a small furnace chamber, a large furnace chamber, an inner injection pipe and an outer injection pipe; the double-needle assembly comprises an ignition needle and a temperature measuring element; the discharge end of the ignition needle and the working end of the temperature measuring element are positioned above the infrared combustion plate; the ignition electrode assembly is fixed to a top port of the center support and comprises a first flange and a center flat plate. The first flange is arranged on the outer edge of the central flat plate, and the central flat plate is provided with a first avoiding hole and a second avoiding hole which are used for the ignition needle and the temperature measuring element to penetrate through. The infrared burner has the advantages of being high in ignition success rate and flame-out protection reliability, low in power consumption, simple in structure and convenient to install.

Description

Technical Field

[0001] This invention belongs to the field of infrared burner technology, specifically relating to a high-reliability integrated infrared burner. Background Technology

[0002] According to the standards for household gas stoves, household gas stoves should be equipped with flameout protection devices, which are devices that automatically shut off the gas supply in the event of accidental flameout to prevent gas leakage. In existing technology, common flameout protection devices mainly include ionization flameout protection devices and thermoelectric flameout protection devices.

[0003] The ionization flameout protection device utilizes the principle that when a gas stove burns, the air in the hot flame generates charged ions under the influence of an electric field of a certain voltage. These ions move under the influence of the electric field, forming an electric current. By detecting this current, the presence of a flame can be determined. When the flame is accidentally extinguished, the control circuit closes the solenoid valve connected in series with the main gas passage, thus achieving the protection purpose. Currently, this type of ionization flameout protection device is mainly used in infrared gas stoves. Generally, the ignition needle and the sensing needle of the ionization flameout protection device are set as the same needle, with a single needle having both ignition and flame detection functions.

[0004] Thermoelectric flameout protection devices mainly include thermocouples and manual solenoid valves. Their principle is as follows: a thermocouple is installed in a position that allows it to contact the flame generated by the combustion of gas in the burner. Under the influence of the flame temperature, a thermoelectric potential is generated inside the thermocouple. This thermoelectric potential is transmitted to the manual solenoid valve, keeping it in an engaged state. When the flame is accidentally extinguished, the surface temperature of the thermocouple, no longer being heated, gradually decreases, and the generated thermoelectric potential also gradually decreases. When the thermoelectric potential decreases to a certain threshold, the manual solenoid valve, unable to maintain its engaged state, is reset by a spring, thus closing the gas passage and achieving the protection purpose. Currently, this type of thermoelectric flameout protection device is mainly used in atmospheric gas stoves. In this case, the ignition needle and the thermocouple are generally configured as two needles; the ignition needle has the ignition function, and the thermocouple has the temperature sensing function.

[0005] However, when using a single-needle ionization flameout protection device, infrared gas stoves require a continuous external power supply to perform flameout protection; while thermoelectric flameout protection devices do not require an external power supply when working. If the ignition needle and thermoelectric flameout protection device are applied to infrared stoves at the same time, energy consumption can be reduced and assembly can be simplified. Therefore, integrating the ignition needle and thermoelectric flameout protection device into the infrared burner has significant innovative significance. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this invention is to provide a highly reliable integrated infrared burner. This infrared burner has the characteristics of high success rate in realizing the ignition function and high reliability in realizing the flameout protection function. It also has low power consumption, compact structure and convenient installation.

[0007] The technical solution adopted by this invention to solve its technical problem is: A highly reliable integrated infrared burner includes an infrared burner head, an infrared combustion plate, a dual-needle assembly, and an ignition electrode assembly; The infrared furnace head includes a central support, a small furnace cavity, a large furnace cavity, an inner ejector tube, and an outer ejector tube. The central support is disposed in the small furnace cavity, forming an inner annular cavity between the central support and the small furnace cavity, and forming an outer annular cavity between the small furnace cavity and the large furnace cavity. The inner ejector tube passes through the large furnace cavity and the small furnace cavity sequentially from the outside to the inside before reaching the inner annular cavity. The outer ejector tube passes through the large furnace cavity from the outside to the inside before reaching the outer annular cavity. The infrared combustion plate is disposed on the top of the infrared burner, and the infrared combustion plate has through holes corresponding to the central support; the infrared combustion plate is provided with an inner edge guide plate and honeycomb holes, and the inner edge guide plate is located at the center and surrounds the central support; The dual-needle assembly includes an ignition needle fixed on the central support and a temperature sensing element of a thermoelectric flameout protection device; the discharge end of the ignition needle and the working end of the temperature sensing element are located above the infrared combustion plate. The ignition electrode assembly is fixed at the top port of the central bracket and includes a first flange and a central plate. The first flange is disposed on the outer edge of the central plate, and the central plate is provided with a first clearance hole and a second clearance hole for the ignition needle and the temperature measuring element to pass through. The first flange presses against the top of the central bracket and the surface of the infrared combustion plate.

[0008] In a preferred embodiment of the present invention, the central support includes a perforated sleeve and a mounting plate; the perforated sleeve is installed in the small furnace cavity, and the mounting plate is fixed in the inner cavity of the perforated sleeve; the mounting plate is provided with a first hole and a second hole for avoiding the ignition needle and the temperature measuring element.

[0009] Preferably, the mounting plate includes a main plate and two opposing second flanges, the main plate being connected between the two second flanges, the two second flanges being arc-shaped and adapted to the inner wall of the hole sleeve, and the two second flanges being fixed to the inner wall of the hole sleeve.

[0010] In a preferred embodiment of the present invention, the dual-needle assembly further includes a fixing plate, the fixing plate having a first fixing hole and a second fixing hole, and a protrusion at the first fixing hole and the second fixing hole; the ignition needle and the temperature measuring element are respectively fixed in the first fixing hole and the second fixing hole.

[0011] In a preferred embodiment of the present invention, the central plate is provided with a vent hole, which communicates with the inner cavity of the sleeve.

[0012] In a preferred embodiment of the present invention, the infrared combustion plate is provided with an inner edge guide plate and honeycomb holes; the inner edge guide plate is located at the center and surrounds the central support.

[0013] Preferably, the width L1 of the inner edge guide plate is 1-5mm; the bottom of the inner edge guide plate is set at a certain angle with the horizontal direction, the angle being 0-30°.

[0014] In a preferred embodiment of the present invention, an annular sealing ring is provided between the first flange and the top of the central support and the top of the inner edge guide plate; the first flange is pressed against the annular sealing ring.

[0015] In a preferred embodiment of the present invention, the discharge end of the ignition needle and the working end of the temperature sensing element both face the outlet direction of the inner ejector tube; or, the discharge end of the ignition needle and the working end of the temperature sensing element both face away from the outlet direction of the inner ejector tube; or, one of the discharge end of the ignition needle and the working end of the temperature sensing element faces the outlet direction of the inner ejector tube and the other faces away from the outlet direction of the ejector tube.

[0016] In a preferred embodiment of the present invention, the ignition needle and the temperature measuring element are fixed on the central plate and then assembled and fixed with the central support.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention differs from traditional ion-sensing flameout protection detection technology by employing a thermoelectric flameout protection device to protect the infrared burner from flameout. Aside from the power required for ignition, the entire operation does not require battery power, resulting in low power consumption and improved user experience. Furthermore, this invention integrates the ignition needle and temperature sensing element into a single unit, assembled and fixed within a small furnace cavity using a central support, resulting in a simple structure and easy assembly.

[0018] The infrared combustion plate in this invention is equipped with an inner edge guide plate, which has a guiding function. It enables the mixed gas entering the inner ring cavity from the inner ejector tube to quickly accumulate and rise after encountering the outer wall of the central support, and form a vortex after encountering the inner edge guide plate. This increases the gas concentration at the discharge end of the ignition needle, ensuring that the mixed gas at the discharge end of the ignition needle reaches the ignition concentration as quickly as possible, which is beneficial to improving the ignition success rate.

[0019] More preferably, the working end of the temperature sensing element of the present invention can be set on the side facing the outlet of the inner ejector tube. In the event of an accidental flameout, the mixed gas entering the inner ring cavity from the inner ejector tube will quickly accumulate and rise after encountering the outer wall of the central support sleeve, thereby scouring the working end of the temperature sensing element, causing the surface temperature of the temperature sensing element to drop rapidly, and the thermoelectric potential formed by the temperature sensing element to drop rapidly, thereby closing the gas passage. The valve closing time is short and the reliability is high. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the high-reliability integrated infrared burner of the first embodiment of the present invention.

[0022] Figure 2 for Figure 1 A sectional view.

[0023] Figure 3 for Figure 1 A 3D view of the infrared burner head.

[0024] Figure 4 for Figure 3 A three-dimensional view of the central support structure.

[0025] Figure 5 for Figure 1 A 3D view of the dual-needle assembly.

[0026] Figure 6 for Figure 1 A three-dimensional view of the ignition electrode assembly.

[0027] Figure 7 This is a cross-sectional view of the infrared combustion plate of the high-reliability integrated infrared burner of the first embodiment of the present invention, which includes an inner edge guide plate and honeycomb holes.

[0028] Figure 8 for Figure 7 A magnified view of A in the middle.

[0029] Figure 9 This is a perspective view of the high-reliability integrated infrared burner of the second embodiment of the present invention.

[0030] Figure 10 This is a perspective view of a high-reliability integrated infrared burner according to the third embodiment of the present invention.

[0031] Figure 11 This is a perspective view showing the fixation of the dual-needle assembly and the ignition electrode assembly in the high-reliability integrated infrared burner of the fourth embodiment of the present invention.

[0032] in: 1-Infrared furnace head, 101-Small furnace cavity, 102-Large furnace cavity, 103-Inner ring cavity, 104-Outer ring cavity; 2-Infrared combustion plate, 201-Inner edge guide plate, 202-Honeycomb holes; 3-Inner ejection tube; 4-External ejector tube; 5-Ignition electrode assembly, 501-Central plate, 502-First flange, 503-First clearance hole, 504-Second clearance hole, 505-Vent hole, 506-Third connection hole; 6-Ignition needle; 7-Temperature sensing element; 8-Center bracket, 801-Hole sleeve, 802-Mounting plate, 8021-Main plate, 8022-Second flange, 8023-First hole, 8024-Second hole, 8025-Second connecting hole; 9- Annular sealing ring; 10-Fixing plate, 1001-First fixing hole, 1002-Second fixing hole, 1003-First connecting hole, 1004-Protrusion. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0035] Example 1 See Figures 1-8A highly reliable integrated infrared burner includes an infrared burner head 1, an infrared combustion plate 2, a dual-needle assembly, and an ignition electrode assembly 5.

[0036] The infrared burner head 1 includes a central support 8, a small furnace chamber 101, a large furnace chamber 102, an inner ejector tube 3, and an outer ejector tube 4. The central support 8 is disposed in the small furnace chamber 101, forming an inner annular cavity 103 between the central support 8 and the small furnace chamber 101, and forming an outer annular cavity 104 between the small furnace chamber 101 and the large furnace chamber 102. The inner ejector tube 3 passes through the large furnace chamber 102 and the small furnace chamber 101 sequentially from the outside to the inside before reaching the inner annular cavity 103. The outer ejector tube 4 passes through the large furnace chamber 102 from the outside to the inside before reaching the outer annular cavity 104. The infrared combustion plate 2 is disposed on the top of the infrared burner, and the infrared combustion plate 2 has a through hole corresponding to the central support 8.

[0037] The dual-needle assembly includes an ignition needle 6 fixed to the central support 8 and a temperature sensing element 7 of a thermoelectric flameout protection device; the discharge end of the ignition needle 6 and the working end of the temperature sensing element 7 are located above the infrared combustion plate 2. The ignition electrode assembly 5 is fixed at the top port of the central support 8 and includes a first flange 502 and a central plate 501; the first flange 502 is disposed on the outer edge of the central plate 501, and the central plate 501 is provided with a first clearance hole 503 and a second clearance hole 504 for the ignition needle 6 and the temperature sensing element 7 to pass through. The first flange 502 presses against the top of the central support 8 and the surface of the infrared combustion plate 2. In this embodiment, the upper ends of the ignition needle 6 and the temperature sensing element 7 are bent into an elbow structure, so that after extending from the central support 8, they bend to the top of the combustion plate to realize ignition and flameout detection. The temperature sensing element 7 in this embodiment can refer to the thermocouple of the thermoelectric flameout protection device in the prior art.

[0038] The central support 8 in this embodiment includes a perforated sleeve 801 and a mounting plate 802; the perforated sleeve 801 is installed in either the small furnace cavity 101 or the large furnace cavity 102, which can be flexibly selected. The perforated sleeve 801 in this embodiment can be fixed to the small furnace cavity 101 or the large furnace cavity 102 by welding, bonding, or riveting. Figure 2 and Figure 7As shown, in this embodiment, the perforated sleeve 801 is installed in the small furnace cavity 101. The perforated sleeve 801 extends vertically, providing space for the installation of the double-needle assembly, thus separating it from the infrared furnace head 1 and other internal structures. The mounting plate 802 is fixed in the inner cavity of the perforated sleeve 801. The mounting plate 802 has a first hole 8023 and a second hole 8024 for avoiding the ignition needle 6 and the temperature measuring element 7. In this way, the double-needle assembly and the perforated sleeve 801 are connected by fixing the double-needle assembly to the mounting plate 802, thereby forming a whole. The ignition needle 6 and the temperature measuring element 7 of the double-needle assembly can be directly fixed to the mounting plate 802, or they can be fixed to a certain component first, and then the component is used to fix and connect to the mounting plate 802.

[0039] The mounting plate 802 in this embodiment includes a main plate 8021 and two opposing second flanges 8022. The main plate 8021 is connected between the two second flanges 8022. The two second flanges 8022 are arc-shaped and fit the inner wall of the sleeve 801. The two second flanges 8022 and the inner wall of the sleeve 801 can be fixed by welding. Furthermore, in this embodiment, a gap is left between the main plate 8021 and the inner wall of the sleeve 801, and the shape of the main plate 8021 can be flexibly adjusted.

[0040] The dual-needle assembly in this embodiment also includes a fixing plate 10; the ignition needle 6 and the temperature sensing element 7 are both fixed on the fixing plate 10; the fixing plate 10 is fixed on the mounting plate 802. The fixing plate 10 is provided with a first fixing hole 1001 and a second fixing hole 1002, and a protrusion 1004 is provided at the first fixing hole 1001 and the second fixing hole 1002; the ignition needle 6 and the temperature sensing element 7 are respectively fixed in the first fixing hole 1001 and the second fixing hole 1002. The fixing of the ignition needle 6 and the temperature sensing element 7 to the fixing plate 10 in this embodiment can be achieved by welding, bonding or riveting, etc., and can be flexibly selected according to the actual situation.

[0041] Furthermore, in this embodiment, the fixing plate 10 is provided with a first connecting hole 1003, the mounting plate 802 is provided with a second connecting hole 8025, and the central plate 501 is provided with a third connecting hole 506. In this embodiment, the central plate 501 limits and presses the fixing plate 10 onto the mounting plate 802, and locks the first connecting hole 1003, the second connecting hole 8025, and the third connecting hole 506 with screws, thereby achieving mutual fixation of the central plate 501, the fixing plate 10, and the mounting plate 802, and thus fixing the ignition needle 6 and the temperature measuring element 7. In addition, the central plate 501, the fixing plate 10, and the mounting plate 802 can also be provided with some buckles or elastic structures, so that the assembly and disassembly of the dual-needle assembly and the mounting plate 802 can be achieved by pressing, twisting, or other operations.

[0042] In this embodiment, a vent hole 505 is provided on the central plate 501, and the vent hole 505 communicates with the inner cavity of the sleeve 801. The vent hole 505 facilitates the upward replenishment of air from inside the burner bottom shell, further ensuring complete combustion.

[0043] Furthermore, in this embodiment, the infrared combustion plate 2 is provided with an inner edge guide plate and honeycomb holes 202; the inner edge guide plate 201 is located at the center and surrounds the central support 8. The width L1 of the inner edge guide plate 201 is 1-5mm. The bottom of the inner edge guide plate 201 can be set horizontally or at a certain angle to the horizontal direction, with an angle of 0°-30°, so that the bottom of the inner edge guide plate forms a gradually upward guide along the direction from the inside to the outside.

[0044] Furthermore, an annular sealing ring 9 is provided between the first flange 502 and the top of the central support 8 and the top of the inner edge guide plate 201; the first flange 502 is pressed against the annular sealing ring 9. The width of the first flange 502 is denoted as L2, and the width of the annular seal is denoted as L3, satisfying L2 > L3.

[0045] In this embodiment, the ignition distance between the end of the ignition needle 6 and the first flange 502 is denoted as L4, and L4 is preferably set to 3-5mm; at the same time, the distance between the end of the ignition needle 6 and the end of the temperature sensing element 7 is denoted as L5, where L5 > L4. Further, the end of the temperature sensing element 7 can be set to be 3-8mm higher than the combustion plate.

[0046] See Figure 1 The discharge end of the ignition needle 6 and the working end of the temperature sensing element 7 both face the outlet direction of the inner ejector tube 3.

[0047] In this embodiment, the infrared combustion plate 2 has an inner edge width, and the bottom of the inner edge guide plate 201 is set at an angle, which has a guiding effect. This allows the mixed gas entering the inner ring cavity 103 from the inner ejector tube 3 to quickly accumulate and rise after encountering the outer wall of the hole sleeve 801 of the central support 8, and form a vortex after encountering the inner edge guide plate 201. This increases the gas concentration at the discharge end of the ignition needle 6, ensuring that the mixed gas at the discharge end of the ignition needle 6 reaches the ignition concentration as quickly as possible. In addition, the discharge end of the ignition needle 6 is located on the side facing the outlet direction of the inner ejector tube 3, resulting in a high ignition success rate.

[0048] Meanwhile, the working end of the temperature sensing element 7 is also located on the side facing the outlet of the inner ejector tube 3. In the event of an accidental flameout, the mixed gas entering the inner ring cavity 103 from the inner ejector tube 3 will quickly accumulate and rise after encountering the outer wall of the hole sleeve 801 of the central support 8, thereby scouring the working end of the temperature sensing element 7, causing the surface temperature of the temperature sensing element 7 to drop rapidly, and the thermoelectric potential formed by the temperature sensing element 7 to drop rapidly, thereby closing the gas passage to achieve the purpose of protection. The valve closing time is short and the reliability is high.

[0049] The ignition and flameout protection working principle of the high-reliability integrated infrared burner applied to gas stoves in this embodiment is as follows: Ignition Working Principle: Under natural ejection, gas and air enter the inner ring ejector tube together and are sprayed onto the outer wall of the orifice sleeve 801 after reaching the inner ring cavity 103. The mixture rises along the outer wall of the orifice sleeve 801 to the bottom of the infrared combustion plate 2. Since the inner diameter of the infrared combustion plate 2 is provided with an inner edge guide plate 201, when the gas encounters the inner edge guide plate 201, it forms a vortex and accumulates, increasing the gas concentration around the ignition position. At this time, the discharge end of the ignition needle 6 generates an electric arc ignition discharge with the first flange 502 of the ignition electrode assembly 5. After the gas is ignited, the ignition controller stops ignition. At this time, the temperature sensing element 7 is heated by the flame and generates a thermoelectric potential. At this time, no external power supply is required. The thermoelectric potential drives the solenoid valve, ensuring that the solenoid valve remains open. The gas stove enters normal operation, and the ignition reliability is high.

[0050] Flameout protection working principle: After accidental flameout, the working end of the temperature sensing element 7 is no longer heated. The mixed gas continues to be sprayed into the inner ring cavity 103. As the gas encounters the inner edge guide plate 201, it forms a vortex and accumulates, and washes the end of the temperature sensing element 7, causing the surface temperature of the end of the temperature sensing element 7 to drop rapidly. The thermoelectric potential formed by the temperature sensing element 7 drops rapidly, thereby closing the gas passage to achieve the purpose of protection. The valve closing time is short and the reliability is high.

[0051] Example 2 See Figure 9 The difference between this embodiment and embodiment 1 is that in this embodiment, the discharge end of the ignition needle 6 and the working end of the temperature measuring element 7 are both facing away from the outlet direction of the inner ejector tube 3.

[0052] Example 3 See Figure 10 The difference between this embodiment and embodiment 1 or embodiment 2 is that, of the discharge end of the ignition needle 6 and the working end of the temperature measuring element 7, one faces the outlet direction of the inner ejector tube 3 and the other faces away from the outlet direction of the ejector tube.

[0053] Example 4 See Figure 11The difference between this embodiment and Embodiment 1 is that, in this embodiment, the ignition needle 6 and the temperature measuring element 7 are respectively fixed in the first clearance hole 503 and the second clearance hole 504 of the central plate 501. The corresponding locations of the first clearance hole 503 and the second clearance hole 504 of the central plate 501 are also provided with protruding structures. Furthermore, the fixing of the ignition needle 6 and the temperature measuring element 7 to the central plate 501 can be achieved by welding, riveting, or other methods. Moreover, after the central plate 501 is fixed together with the ignition needle 6401 and the temperature measuring element 7, it can then be fixed to the mounting plate 802 of the central bracket 8, eliminating the need for the fixing plate 10 and further simplifying the structure.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A high-reliability integrated infrared burner, characterized in that, Includes infrared burner head, infrared combustion plate, dual-needle assembly and ignition electrode assembly; The infrared furnace head includes a central support, a small furnace cavity, a large furnace cavity, an inner ejector tube, and an outer ejector tube. The central support is disposed in the small furnace cavity, forming an inner annular cavity between the central support and the small furnace cavity, and forming an outer annular cavity between the small furnace cavity and the large furnace cavity. The inner ejector tube passes through the large furnace cavity and the small furnace cavity sequentially from the outside to the inside before reaching the inner annular cavity. The outer ejector tube passes through the large furnace cavity from the outside to the inside before reaching the outer annular cavity. The infrared combustion plate is disposed on the top of the infrared burner, and the infrared combustion plate has through holes corresponding to the central support; the infrared combustion plate is provided with an inner edge guide plate and honeycomb holes, and the inner edge guide plate is located at the center and surrounds the central support; The dual-needle assembly includes an ignition needle fixed on the central support and a temperature sensing element of a thermoelectric flameout protection device; the discharge end of the ignition needle and the working end of the temperature sensing element are located above the infrared combustion plate. The ignition electrode assembly is fixed at the top port of the central bracket and includes a first flange and a central plate. The first flange is disposed on the outer edge of the central plate, and the central plate is provided with a first clearance hole and a second clearance hole for the ignition needle and the temperature measuring element to pass through. The first flange presses against the top of the central bracket and the surface of the infrared combustion plate.

2. The high-reliability integrated infrared burner according to claim 1, characterized in that, The central support includes a perforated sleeve and a mounting plate; the perforated sleeve is installed in the small furnace cavity, and the mounting plate is fixed in the inner cavity of the perforated sleeve. The mounting plate is provided with a first hole and a second hole for avoiding the ignition needle and the temperature measuring element.

3. The high-reliability integrated infrared burner according to claim 2, characterized in that, The mounting plate includes a main plate and two opposing second flanges. The main plate is connected between the two second flanges. The two second flanges are arc-shaped and adapted to the inner wall of the hole sleeve. The two second flanges are fixed to the inner wall of the hole sleeve.

4. The high-reliability integrated infrared burner according to any one of claims 1-3, characterized in that, The dual-needle assembly also includes a fixing plate, which has a first fixing hole and a second fixing hole, and protrusions at the first fixing hole and the second fixing hole; the ignition needle and the temperature measuring element are respectively fixed in the first fixing hole and the second fixing hole.

5. The high-reliability integrated infrared burner according to claim 2, characterized in that, The central plate is provided with a vent hole, which is connected to the inner cavity of the sleeve.

6. The high-reliability integrated infrared burner according to claim 1, characterized in that, The bottom of the inner edge guide plate is set at a certain angle to the horizontal direction, with an angle of 0-30°.

7. The high-reliability integrated infrared burner according to claim 1, characterized in that, The width L1 of the inner edge guide plate is 1-5mm.

8. The high-reliability integrated infrared burner according to claim 6 or 7, characterized in that, An annular sealing ring is provided between the first flange and the top of the central support and the top of the inner edge guide plate; the first flange is pressed against the annular sealing ring.

9. The high-reliability integrated infrared burner according to claim 1, characterized in that, The discharge end of the ignition needle and the working end of the temperature sensing element both face the outlet direction of the inner ejector tube; or, the discharge end of the ignition needle and the working end of the temperature sensing element both face away from the outlet direction of the inner ejector tube; or, one of the discharge end of the ignition needle and the working end of the temperature sensing element faces the outlet direction of the inner ejector tube and the other faces away from the outlet direction of the ejector tube.

10. The high-reliability integrated infrared burner according to claim 1, characterized in that, The ignition needle and the temperature measuring element are fixed on the central plate and then assembled and fixed with the central support.

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