Ignition and flame detection integrated device and gasification furnace burner

Abstract

The application relates to the technical field of burners, in particular to an ignition and flame detection integrated device and a gasification furnace burner. The device comprises an ignition electrode, a high-voltage igniter and a combustion controller. The ignition electrode comprises an ion probe, a center electrode, a head connecting piece for connecting the ion probe and the center electrode, a plurality of center insulating pieces sleeved on the outer surface of the center electrode, an outer shell sleeved on the outer surface of the plurality of center insulating pieces and extending outward at both ends, an ignition negative electrode connected with the outer shell and having a prong of the ignition negative electrode extending to the ion probe by being bent, a tail insulating piece and a tail isolation insulating piece sleeved on the center electrode in sequence, a tail mounting connecting piece sleeved on the tail isolation insulating piece, and a cable joint connected with the tail end of the center electrode and used for connecting the high-voltage igniter or the combustion controller. The device can effectively improve the insulation, temperature resistance and service life of the ignition electrode, and realize stable ignition and accurate detection of the flame state.

Description

Technical Field

[0001] This invention relates to the field of burner technology, specifically to an integrated ignition and flame detection device and a gasifier burner. Background Technology

[0002] Gasification furnace burners typically employ a three-stage automatic ignition system: the ignition device lights the pilot light, which in turn ignites the main burner. The ignition device consists of an ignition transformer, ignition cable, and ignition electrode. However, the ignition electrode is installed inside the pilot light, and its fixed tip is constantly exposed to the high-temperature environment of 800-900℃ within the furnace. This exposure easily leads to coking, oxidation, and deformation of the electrode tip, resulting in frequent ignition electrode failures. Furthermore, since both the pilot light fuel and the burner fuel are usually combustible gases, existing flame detectors cannot accurately distinguish between the pilot light flame and the burner flame. The pilot light flame detection signal is often subject to "peeping," posing a safety hazard to burner operation.

[0003] Furthermore, existing high-voltage ignition electrode insulating ceramic kits typically use corundum ceramic tubes for insulation support. Corundum tubes have low strength and are prone to breakage, leading to decreased insulation performance at cracks and easy creepage discharge at these cracks inside the ignition electrode. Also, since ignition electrodes are typically 2-5 meters long, it's impossible to manufacture them with a single, continuous ceramic tube; several tubes must be joined together, and creepage discharge can occur at the joints. Additionally, corundum ceramic tubes are prone to moisture absorption. During the gasifier's start-up phase or when the burner uses high-hydrogen fuel, the corundum ceramic tubes absorb water, reducing insulation performance and potentially causing internal short circuits in the ignition electrode. Gaps exist between the center electrode and the corundum ceramic tube, and between the corundum ceramic tube and the outer shell. In the 3.0 MPa high back pressure environment of the gasifier, these gaps inside the ignition gun can easily lead to current leakage, posing a serious safety hazard.

[0004] Therefore, there is an urgent need for an integrated ignition and flame detection device and a gasifier burner to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the above-mentioned background art and to provide an integrated ignition and flame detection device and a gasifier burner.

[0006] To achieve the above objectives, the first aspect of the present invention provides an integrated ignition and flame detection device, the integrated ignition and flame detection device comprising an ignition electrode, a high-voltage igniter, and a combustion controller; The ignition electrode includes: Ion probe; Central electrode; The head connector has one end detachably connected to the ion probe and the other end fixedly connected to the central electrode; Multiple central insulating elements are sequentially sleeved on the outer surface of the central electrode, and adjacent central insulating elements are nested and connected. The outer shell is fitted onto the outer surface of the plurality of central insulating elements and extends outward at both ends; The ignition negative electrode is detachably connected to the end of the outer shell near the ion probe, and the claws of the ignition negative electrode bend and extend toward the ion probe. A head-mounted insulating component is disposed between the ion probe and the ignition negative electrode for isolation and insulation. A tail insulating member is sleeved on the outer surface of the portion of the central electrode that extends out of the central insulating member, and one end of the tail insulating member is nested and connected to the adjacent central insulating member. A tail-end insulating element is sleeved on the outer surface of the portion of the central electrode that extends out of the tail-end insulating element; A tail-mounted connector is fitted onto the tail-mounted insulating component, and one end is detachably connected to the outer shell. A seal is disposed between the tail mounting connector and the tail insulating member; A pressure cap is used to limit and fix the seal; A cable connector is connected to the end of the central electrode away from the ion probe, for connecting the high-voltage igniter and / or the combustion controller; The high-voltage igniter is used to output an ignition voltage between the ion probe and the negative ignition electrode to break down the air and form an electric arc for ignition. The combustion controller is used to output a detection voltage between the ion probe and the negative ignition electrode to detect the flame state.

[0007] Preferably, the ignition negative electrode is provided with 2-8 claws, and the distance between the tip of the claw and the surface of the ion probe is 2.5-3.5 mm.

[0008] Preferably, the central insulating component, the head insulating component, the tail insulating component, and the tail insulating component are all made of ceramic; the central insulating component and the tail insulating component are both ceramic insulating components with a stop.

[0009] Preferably, silicone is provided at the nested connection of two adjacent center insulating members with stop, and silicone is provided at the nested connection of the center insulating member with stop and the tail insulating member.

[0010] Preferably, the outer surface of the central insulating element is coated with a glaze coating.

[0011] Preferably, the wall thickness of the central insulating element is greater than 3 mm.

[0012] Preferably, the gap between the head connector and the head insulating member is filled with ceramic adhesive, and the gap between the head insulating member and the outer shell is filled with ceramic adhesive.

[0013] Preferably, the ion probe, the ignition negative electrode, the head connector, the outer shell, and the central electrode are all made of chromium-nickel austenitic stainless steel.

[0014] Preferably, the outer surface of the central electrode is covered with an insulating sheath, which is made of perfluoroethylene propylene.

[0015] Preferably, the seal is made of perfluoroethylene propylene.

[0016] Preferably, the gap between the central electrode covered by the insulating sheath and the central insulating member is filled with silicone, the gap between the central insulating member and the outer shell is filled with silicone, and the gap between the tail mounting connector and the tail insulating member is filled with silicone.

[0017] A second aspect of the present invention provides a gasifier burner, including the aforementioned integrated ignition and flame detection device.

[0018] Compared with the prior art, the beneficial effects of this invention are as follows: by designing the layout of the internal structure and packaging method of the ignition electrode, the stability and ignition reliability of the ignition electrode in high-temperature environments can be effectively improved, as well as the internal sealing of the ignition electrode can be effectively improved, thus effectively adapting to use in a 3.0MPa high back pressure environment and eliminating leakage current inside the ignition electrode; at the same time, based on the current detection return flow of the combustion controller, the flame of the lamp and the flame of the burner can be accurately distinguished. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the integrated ignition and flame detection device of the present invention; Figure 2 This is a partial structural schematic diagram of the integrated ignition and flame detection device of the present invention; Figure 3 This is another structural schematic diagram of the integrated ignition and flame detection device of the present invention; Figure 4 This is a physical image of the ceramic insulating component with a stop in this invention.

[0020] Explanation of reference numerals in the attached figures 1. Ion probe; 2. Ignition negative electrode; 3. Head connector; 4. Head insulating component; 5. Outer shell; 6. Center insulating component; 7. Center electrode; 8. Insulating sheath; 9. Tail insulating component; 10. Tail mounting connector; 11. Seal; 12. Tail insulating component; 13. Gland; 14. Cable connector. Detailed Implementation

[0021] The following provides a detailed description of specific embodiments of the present invention. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the present invention.

[0022] The first aspect of this invention provides an integrated ignition and flame detection device, such as... Figure 1 , Figure 2 and Figure 3 As shown, the integrated ignition and flame detection device includes an ignition electrode, a high-voltage igniter, and a combustion controller; The ignition electrode includes: Ion probe 1; Central electrode 7; The head connector 3 is detachably connected to the ion probe 1 via a thread at one end and is fixedly connected to the central electrode 7 via argon arc welding at the other end. Multiple central insulating elements 6 are sequentially sleeved on the outer surface of the central electrode 7, and adjacent central insulating elements 6 are nested and connected. The outer shell 5 is fitted onto the outer surface of the plurality of central insulating members 6, and extends outward at both ends; The ignition negative electrode 2 is detachably connected to the end of the outer shell 5 near the ion probe 1 via a thread, and the claws of the ignition negative electrode 2 bend and extend toward the ion probe 1. The head isolation insulating component 4 is disposed between the ion probe 1 and the ignition negative electrode 2 for isolation and insulation; The tail insulating member 9 is sleeved on the outer surface of the portion of the central electrode 7 that extends out of the central insulating member 6, and one end is nested and connected to the adjacent central insulating member 6. Tail-end insulating member 12 is sleeved on the outer surface of the portion of the central electrode 7 that extends out of the tail-end insulating member 9; A tail-mounted connector 10 is fitted onto the tail-mounted insulating component 12, and one end is detachably connected to the outer shell 5 via a thread. The sealing element 11 is disposed between the tail mounting connector 10 and the tail isolation insulation element 12; The pressure cap 13 extends partially into the cavity between the tail mounting connector 10 and the tail isolation insulating member 12, and is used to limit and fix the sealing member 11; Cable connector 14 is connected to the end of the center electrode 7 away from the ion probe 1, and is used to connect the high-voltage igniter and / or the combustion controller; The high-voltage igniter outputs an ignition voltage between the ion probe 1 and the negative ignition electrode 2 to break down the air and form an electric arc for ignition, thus igniting the continuous flame lamp. The combustion controller outputs a detection voltage between the ion probe 1 and the negative ignition electrode 2 to detect the flame status. Specifically, the ignition voltage output by the high-voltage igniter is 6-10KV AC. The detection voltage output by the combustion controller is 120-150V AC. The combustion controller can specifically be an IFD258 combustion controller.

[0023] According to the above technical solution, based on this integrated ignition and flame detection device, in practical applications, by designing the layout of the internal structure and encapsulation method of the ignition electrode, the stability and ignition reliability of the ignition electrode in high-temperature environments can be effectively improved, as well as the internal sealing of the ignition electrode can be effectively improved, thus effectively adapting to use in a 3.0MPa high back pressure environment and eliminating leakage current inside the ignition electrode; at the same time, based on the current detection return current formed by the combustion controller, the flame of the permanent lamp and the flame of the burner can be accurately distinguished.

[0024] The principle behind the accurate distinction between a pilot light flame and a burner flame, based on the current detection return current of the combustion controller, utilizes the inherent conductivity of flames to determine their presence by detecting the current path. Its core workflow is as follows: Establish an electric field: Install a metal probe (electrode) near the burner and connect it to a detection circuit, so that an electric field is formed between the probe and the ground.

[0025] Using flames to conduct electricity: When a flame is ignited, the high temperature causes the gas molecules in the combustion zone to ionize, producing a large number of positive ions and free electrons, thus making the flame a good conductor.

[0026] Forming a current loop: The conductive flame bridges the gap between the probe and ground, forming a weak ion current path in the detection circuit.

[0027] Detection and Judgment: The combustion controller continuously monitors the current in this circuit. Once a current that meets the preset value is detected, it is determined that "there is a flame"; when the flame is extinguished, the current disappears or falls below the threshold, it is determined that "there is no flame", and an alarm is issued or a safety shutdown is executed.

[0028] In practical applications, it has been found that the claws of the ignition negative electrode 2 are prone to coking, oxidation, and deformation due to prolonged exposure to the high-temperature environment of the gasifier (800-900℃), leading to frequent ignition electrode failures. To address this issue, in some preferred embodiments, the ignition negative electrode 2 is provided with 2-8 claws. More preferably, the distance between the tip of the claw and the surface of the ion probe 1 is 2.5-3.5 mm, more preferably 2.8-3.2 mm, and most preferably 3 mm.

[0029] In embodiments of the present invention, such as Figure 1 As shown, by making multiple claws of the ignition negative electrode 2 bend and extend towards the ion probe 1 in a manner that surrounds the ion probe 1 and maintains a distance of 3mm, the discharge of a single claw of the ignition negative electrode 2 is effectively avoided. The high temperature generated by the arc causes the claw tip to melt, which increases the gap between the claw tip and the ion probe 1, resulting in the inability to break down the air and generate an arc. This prolongs the discharge life of the ignition electrode and improves the stability of ignition.

[0030] In some other preferred embodiments, the ion probe 1, the ignition negative electrode 2, the head connector 3, the outer shell 5, and the center electrode 7 are all made of chromium-nickel austenitic stainless steel, specifically 2520 high-chromium-nickel austenitic stainless steel, thereby effectively improving the overall high-temperature resistance of the ignition electrode and ensuring long-term use in a high-temperature environment of 1000℃.

[0031] In order to ensure the insulation of the ignition electrode, in some preferred embodiments, the central insulating member 6, the head insulating member 4, the tail insulating member 9, and the tail insulating member 12 are all made of ceramic. More preferably, the central insulating member 6 and the tail insulating member 9 are both ceramic insulating members with a stop. Specifically, ceramic insulating members with stops are such as... Figure 4 As shown.

[0032] In this embodiment of the invention, by making both the central insulating member 6 and the tail insulating member 9 ceramic insulating members with stop edges, in practical applications, they can be interlocked based on the ceramic insulating members with stop edges to achieve precise alignment and tight fit, so as to meet the 2-5m length requirement of the ignition electrode, and has the following advantages compared with the butt joint corundum ceramic tube: First, the tight fit at the joint eliminates noticeable gaps or steps, resulting in a smooth and continuous surface that reduces electric field concentration and creepage initiation points. Second, this structure allows for a longer effective creepage distance, improving withstand voltage by increasing the surface path length. Third, combined with sealing measures, it prevents moisture and contaminants from entering, keeping the surface clean and dry, fundamentally reducing the risk of creepage.

[0033] Preferably, silicone is provided at the nesting connection of two adjacent central insulating members 6 with stop, and silicone, specifically 704 silicone, is provided at the nesting connection of the central insulating member 6 with stop and the tail insulating member 9, thereby further filling the gaps when the ceramic parts are nested, improving the sealing performance, avoiding creepage discharge in the gaps, and fundamentally reducing the risk of creepage.

[0034] More preferably, the outer surface of the central insulating component 6 is coated with a glaze, that is, glaze is applied to the outer surface of the central insulating component 6, thereby improving the strength of the ceramic insulating component, making it less prone to breakage, and the ceramic insulating component does not absorb moisture after the surface of the central insulating component 6 is glazed, thus possessing excellent insulation performance, which can effectively meet the requirements of the gasifier boiling stage and the use of high hydrogen fuel in the burner.

[0035] More preferably, the wall thickness of the cylindrical central insulating member 6 is greater than 3 mm and less than 6 mm. As a preferred example, the wall thickness of the central insulating member 6 is 4.5 mm.

[0036] In this embodiment of the invention, by making the wall thickness of the central insulating component 6 greater than the discharge distance of 3mm between the claw of the ignition negative electrode 2 and the ion probe 1, it is effectively ensured that an arc is generated by breaking down air at a position of 3mm at the electrode head. This avoids the situation where the arc spark generated by breaking down air at a position less than 3mm is small, and where air cannot be effectively broken down at a position greater than 3mm. Furthermore, if the wall thickness of the central insulating component 6 is less than 3mm, the ceramic central insulating component 6 may break during the moving and installation process, causing the insulation performance to fail to meet the requirements. Sparks will be generated at the breakage point, and the discharge energy will be released at the breakage point, causing the ion probe 1 and the ignition negative electrode 2 to be unable to discharge at a position of 3mm.

[0037] In some other preferred embodiments, the gap between the head connector 3 and the head insulating member 4 is filled with ceramic adhesive, and the gap between the head insulating member 4 and the outer shell 5 is filled with ceramic adhesive.

[0038] In this embodiment of the invention, the electrode head can be effectively sealed by using ceramic adhesive for filling and encapsulation. Preferably, the ceramic adhesive is S523 high-temperature resistant insulating ceramic adhesive, which is a two-component inorganic adhesive with a long-term temperature resistance of up to 1400℃, excellent high-temperature insulation performance, and high encapsulation strength, enabling the ignition electrode to be used for a long time in the high-temperature long-term burning environment of the gasifier.

[0039] In some preferred embodiments, the outer surface of the center electrode 7 is covered with an insulating sleeve 8 made of perfluoroethylene propylene (F46). The F46 sleeve has a withstand voltage of 40 kVAC, which is much higher than the igniter's operating voltage of 24 kVAC, providing a sufficient safety factor. Furthermore, the center electrode 7 covered by the F46 insulating sleeve 8 exhibits excellent waterproof performance; it does not absorb water, is not affected by moisture, and even when completely submerged in water, the insulation resistance between the center electrode 7 and the outer shell 5 remains infinite after removal. As a specific example, the thickness of the perfluoroethylene propylene insulating sleeve 8 is 1-3 mm, preferably 1.5-2.5 mm, and most preferably 2 mm.

[0040] Further preferably, the gap between the central electrode 7 and the central insulating member 6 covered by the insulating sheath 8 is filled with silicone, the gap between the central insulating member 6 and the outer shell 5 is filled with silicone, and the gap between the tail mounting connector 10 and the tail isolation insulating member 12 is filled with silicone. Specifically, the silicone is 704 silicone, thereby further filling the assembly gaps and improving the sealing performance.

[0041] In some other preferred embodiments, the seal 11 is made of perfluoroethylene propylene (F46) to ensure sealing and insulation.

[0042] A second aspect of the present invention provides a gasifier burner, including the aforementioned integrated ignition and flame detection device.

[0043] The present invention will be described in detail below through embodiments, but the scope of protection of the present invention is not limited thereto.

[0044] Example 1 Adopting including such Figures 1-4 The gasifier burner implementation of the integrated ignition and flame detection device shown is specifically described as including an ignition electrode, a high-voltage igniter, and a combustion controller. The ignition electrode includes: Ion probe 1; Central electrode 7; The head connector 3 is detachably connected to the ion probe 1 at one end and fixedly connected to the central electrode 7 at the other end. Multiple central insulating elements 6 are sequentially sleeved on the outer surface of the central electrode 7, and adjacent central insulating elements 6 are nested and connected. The outer shell 5 is fitted onto the outer surface of the plurality of central insulating members 6, and extends outward at both ends; The ignition negative electrode 2 is detachably connected to the end of the outer shell 5 near the ion probe 1, and the claws of the ignition negative electrode 2 bend and extend toward the ion probe 1. The head isolation insulating component 4 is disposed between the ion probe 1 and the ignition negative electrode 2 for isolation and insulation; The tail insulating member 9 is sleeved on the outer surface of the portion of the central electrode 7 that extends out of the central insulating member 6, and one end is nested and connected to the adjacent central insulating member 6. Tail-end insulating member 12 is sleeved on the outer surface of the portion of the central electrode 7 that extends out of the tail-end insulating member 9; A tail-mounted connector 10 is fitted onto the tail-mounted insulating component 12, and one end is detachably connected to the outer shell 5. The sealing element 11 is disposed between the tail mounting connector 10 and the tail isolation insulation element 12; The pressure cap 13 is used to limit and fix the sealing element 11; Cable connector 14 is connected to the end of the central electrode 7 away from the ion probe 1, and is used to connect the high-voltage igniter and / or the combustion controller; The high-voltage igniter is used to output an ignition voltage between the ion probe 1 and the ignition negative electrode 2 to break down the air and form an electric arc for ignition. The combustion controller is used to output a detection voltage between the ion probe 1 and the ignition negative electrode 2 to detect the flame state. Specifically, the ignition negative electrode 2 is provided with two claws, and the distance between the tip of the claw and the surface of the ion probe 1 is 3mm; the central insulating component 6, the head insulating component 4, the tail insulating component 9, and the tail insulating component 12 are all made of ceramic; the central insulating component 6 and the tail insulating component 9 are both ceramic insulating components with stop edges; silicone is provided at the nesting connection of two adjacent central insulating components 6 with stop edges, and silicone is provided at the nesting connection of the central insulating component 6 with stop edges and the tail insulating component 9, the silicone being 704 silicone; the outer surface of the central insulating component 6 is coated with a glaze coating; the wall thickness of the central insulating component 6 is 4.5mm; the gap between the head connector 3 and the head insulating component 4 is filled with ceramic adhesive, and the head insulating component 4... The gap between the outer shell 5 and the central electrode 7 is filled with ceramic adhesive, which is S523 high-temperature resistant insulating ceramic adhesive; the ion probe 1, the ignition negative electrode 2, the head connector 3, the outer shell 5, and the central electrode 7 are all made of 2520 high-chromium-nickel austenitic stainless steel; the outer surface of the central electrode 7 is covered with an insulating sleeve 8, which is made of polytetrafluoroethylene propylene and has a thickness of 2mm; the gap between the central electrode 7 covered with the insulating sleeve 8 and the central insulating component 6 is filled with silicone; the gap between the central insulating component 6 and the outer shell 5 is filled with silicone; the gap between the tail mounting connector 10 and the tail isolation insulating component 12 is filled with silicone, which is 704 silicone; the sealing component 11 is made of polytetrafluoroethylene propylene.

[0045] In practical applications, during ignition, the high-voltage igniter is connected to cable connector 14 via a cable, and outputs an 8KV ignition voltage between ion probe 1 and ignition negative electrode 2. This causes the claws of ignition negative electrode 2 to generate an electric arc with ion probe 1 at a distance of 3mm, thus igniting the lamp. During flame detection, the combustion controller is connected to cable connector 14 via a cable, and outputs a 130V detection voltage between ion probe 1 and ignition negative electrode 2. When a current that meets the preset value is detected, it is determined that there is a flame. When the current disappears or the detected current is lower than the threshold, it is determined that there is no flame.

[0046] Testing revealed that the gasifier burner employing the integrated ignition and flame detection device described in this invention, compared to existing gasifier burners using corundum ceramic tubes for ignition electrodes, effectively improves the pressure resistance, stability, and ignition reliability of the ignition electrode in high-temperature environments through layout design of its internal structure and encapsulation method. It also effectively enhances the internal sealing of the ignition electrode, making it suitable for use in high back pressure environments of 3.0 MPa and eliminating leakage within the ignition electrode. Furthermore, based on the current detection return flow of the combustion controller, it can accurately distinguish between the persistent flame and the burner flame. In particular, by selecting and designing the configuration of the claws and central insulating component of the ignition negative electrode, coupled with a corresponding sealing method, it enables the ignition negative electrode and ion probe to achieve stable ignition at 3 mm for extended periods without issues such as claw failure, leakage, creepage, or insufficient pressure resistance, effectively ensuring stability and reliability during long-term use.

[0047] The ignition and flame detection integrated device and gasifier burner provided by this invention, through the layout design of the internal structure and encapsulation method of the ignition electrode, can effectively improve the pressure resistance, stability and ignition reliability of the ignition electrode in high-temperature environments, as well as effectively improve the internal sealing of the ignition electrode, thereby effectively adapting to use in a high back pressure environment of 3.0MPa and eliminating leakage current inside the ignition electrode; at the same time, based on the current detection backflow of the combustion controller, it can accurately distinguish between the flame of the lamp and the flame of the burner.

[0048] The preferred embodiments of the present invention have been described in detail above; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention. To avoid unnecessary repetition, the present invention will not describe all possible combinations separately. However, these simple modifications and combinations should also be considered as part of the content disclosed in this invention and are all within the protection scope of this invention.

Claims

1. An integrated ignition and flame detection device, characterized in that, The integrated ignition and flame detection device includes an ignition electrode, a high-voltage igniter, and a combustion controller. The ignition electrode includes: Ion probe (1); Central electrode (7); The head connector (3) is detachably connected to the ion probe (1) at one end and fixedly connected to the central electrode (7) at the other end. Multiple central insulating elements (6) are sequentially sleeved on the outer surface of the central electrode (7), and two adjacent central insulating elements (6) are nested and connected. The outer shell (5) is fitted onto the outer surface of the plurality of central insulating members (6) and extends outward at both ends; The ignition negative electrode (2) is detachably connected to one end of the outer shell (5) near the ion probe (1), and the claws of the ignition negative electrode (2) bend and extend toward the ion probe (1); A head-mounted insulating component (4) is disposed between the ion probe (1) and the ignition negative electrode (2) for isolation and insulation. The tail insulating member (9) is sleeved on the outer surface of the portion of the central electrode (7) that extends out of the central insulating member (6), and one end is nested and connected to the adjacent central insulating member (6). A tail insulating member (12) is sleeved on the outer surface of the portion of the central electrode (7) that extends out of the tail insulating member (9); A tail-mounted connector (10) is fitted onto the tail-mounted insulating component (12), and one end is detachably connected to the outer shell (5). A seal (11) is disposed between the tail mounting connector (10) and the tail insulating member (12); A pressure cap (13) is used to limit and fix the seal (11); A cable connector (14) is connected to the end of the center electrode (7) away from the ion probe (1) for connecting the high-voltage igniter and / or the combustion controller; The high-voltage igniter is used to output an ignition voltage between the ion probe (1) and the ignition negative electrode (2) to break down the air and form an electric arc for ignition. The combustion controller is used to output a detection voltage between the ion probe (1) and the ignition negative electrode (2) to detect the flame state.

2. The integrated device according to claim 1, characterized in that, The ignition negative electrode (2) is provided with 2-8 claws, and the distance between the tip of the claw and the surface of the ion probe (1) is 2.5-3.5 mm.

3. The integrated device according to claim 1, characterized in that, The central insulating component (6), the head insulating component (4), the tail insulating component (9), and the tail insulating component (12) are all made of ceramic; the central insulating component (6) and the tail insulating component (9) are both ceramic insulating components with a stop.

4. The integrated device according to claim 3, characterized in that, Silicone is provided at the nested connection of two adjacent center insulating members (6) with stop, and silicone is provided at the nested connection of the center insulating member (6) with stop and the tail insulating member (9).

5. The integrated device according to any one of claims 1, 3, and 4, characterized in that, The outer surface of the central insulating element (6) is coated with a glaze coating.

6. The integrated device according to any one of claims 1, 3, and 4, characterized in that, The wall thickness of the central insulating element (6) is greater than 3 mm.

7. The integrated device according to claim 1, characterized in that, The gap between the head connector (3) and the head insulating member (4) is filled with ceramic adhesive, and the gap between the head insulating member (4) and the outer shell (5) is filled with ceramic adhesive.

8. The integrated device according to claim 1, characterized in that, The ion probe (1), the ignition negative electrode (2), the head connector (3), the outer shell (5), and the center electrode (7) are all made of chromium-nickel austenitic stainless steel.

9. The integrated device according to claim 1, characterized in that, The outer surface of the central electrode (7) is covered with an insulating sheath (8), which is made of polytetrafluoroethylene propylene. The gap between the central electrode (7) covered by the insulating sheath (8) and the central insulating member (6) is filled with silicone; the gap between the central insulating member (6) and the outer shell (5) is filled with silicone; and the gap between the tail mounting connector (10) and the tail isolation insulating member (12) is filled with silicone. The seal (11) is made of poly(fluoroethylene propylene).

10. A gasifier burner, characterized in that, Includes the integrated device as described in any one of claims 1-9.

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