Synthetic furnace ignition device and method

Abstract

The invention relates to the technical field of synthetic furnace ignition equipment, in particular to a synthetic furnace ignition device and method. The air exhaust assembly is communicated with the lamp holder and is used for exhausting air in the lamp holder; the output end of the scavenging assembly communicates with the lamp holder and is used for scavenging of the lamp holder; the output end of the gas inlet assembly is communicated with the lamp holder, and the gas inlet assembly is used for introducing combustion gas into the lamp holder; and the ignition assembly is installed on the moving assembly, and the ignition assembly is used for extending into the lamp holder to ignite combustion gas after ignition. Automatic ignition can be achieved, and the ignition operation risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of synthesis furnace ignition equipment technology, and in particular to a synthesis furnace ignition device and method. Background Technology

[0002] A combustion synthesis furnace is a device that synthesizes materials or chemicals through a combustion reaction, and it is characterized by energy saving and high efficiency.

[0003] The combustion of hydrogen and chlorine in a synthesis furnace to produce hydrogen chloride (HCl) is a crucial chemical process. After rigorous purification, upstream hydrogen and chlorine are introduced into the furnace at a specific volume ratio and ignited at the burner. The intense combustion produces hydrogen chloride gas, releasing a large amount of heat, which is then absorbed by an absorption device. Currently, the synthesis furnace is primarily manually ignited. The procedure involves: after successful chlorine-hydrogen purging, nitrogen purging of the furnace chamber, creating a negative pressure in the furnace, installing a blind flange on the hydrogen inlet line, continuously sampling and analyzing the furnace for hydrogen content twice (with results less than 0.07%), extending the ignition rod, removing the hydrogen pipeline blind flange, introducing hydrogen, and observing normal combustion. Then, introducing chlorine, and observing normal combustion of both hydrogen and chlorine, indicating successful ignition. The furnace door is then closed, and hydrogen and chlorine are routed through the main pipeline, ending the ignition process. This manual ignition method not only carries high safety risks but also involves complex procedures, increasing the risk of hydrogen and chlorine leaks.

[0004] Therefore, those skilled in the art are dedicated to developing a synthesis furnace ignition device and method that facilitates automatic ignition and reduces the risks associated with ignition operations. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a synthesis furnace ignition device and method, which facilitates automatic ignition and reduces the risk of ignition operation. The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A synthesis furnace ignition device, comprising Lamp holder; A vacuum assembly, which is connected to the lamp holder and is used to extract gas from the lamp holder; A scavenging assembly, the output end of which is connected to the lamp head and used for scavenging the lamp head; An air intake assembly, the output end of which is connected to the lamp holder and used to introduce combustion gas into the lamp holder; An ignition assembly is mounted on a movable assembly and is used to extend into the lamp head after ignition to ignite the combustion gas.

[0006] The beneficial effects of adopting the above scheme are: by integrating the lamp head, the exhaust assembly, the scavenging assembly, the intake assembly, the ignition assembly, and the moving assembly, a complete synthesis furnace ignition device system is constructed. The components work together to achieve the functions of supplying combustion gases, pre-treating the furnace environment, and automatic ignition, thus eliminating the dependence on manual ignition, reducing the overall operational risk, and simplifying the ignition process.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the air extraction assembly includes an air extraction pipe that is connected to the lamp holder. A negative pressure valve and a fan are installed on the air extraction pipe, and the negative pressure valve and the fan are electrically connected to the control assembly.

[0009] The beneficial effects of adopting the above-mentioned further solution are: the gas extraction component can effectively extract the gas inside the lamp head, ensure the safety of the ignition environment, avoid the risk of combustion and explosion caused by residual gas, and at the same time help to maintain a negative pressure state inside the lamp head before ignition.

[0010] Furthermore, the air intake assembly includes a mixer, a hydrogen intake pipe, and a chlorine intake pipe. The mixer is installed on the lamp holder, and both the hydrogen intake pipe and the chlorine intake pipe are connected to the mixer. The hydrogen inlet pipe is also equipped with a hydrogen regulating valve and a hydrogen shut-off valve, and the chlorine inlet pipe is also equipped with a chlorine regulating valve and a chlorine shut-off valve.

[0011] The beneficial effects of adopting the above-mentioned further solution are: the intake assembly premixes hydrogen and chlorine through a mixer, and with the assistance of regulating valves and shut-off valves, it can accurately control the flow rate of hydrogen and chlorine and the timing of their entry into the lamp head, ensuring uniform mixing and stable supply of combustion gases, and improving the success rate and safety of ignition.

[0012] Furthermore, the hydrogen inlet pipe, located between the hydrogen regulating valve and the hydrogen shut-off valve, is also connected to a hydrogen bypass pipe. The other end of the hydrogen bypass pipe is connected to the inlet end of the hydrogen inlet pipe. A hydrogen ignition bypass valve is also installed on the hydrogen bypass pipe. The hydrogen bypass pipe is also connected to a second hydrogen inlet pipe, on which a hydrogen replacement valve and a hydrogen replacement flow meter are installed. The chlorine inlet pipe is located between the chlorine regulating valve and the chlorine shut-off valve and is also connected to a chlorine bypass pipe. The other end of the chlorine bypass pipe is connected to the inlet end of the chlorine inlet pipe. A chlorine ignition bypass valve is also installed on the chlorine bypass pipe. The chlorine bypass pipe is also connected to a second chlorine inlet pipe, and a chlorine replacement valve and a chlorine replacement flow meter are installed on the second chlorine inlet pipe.

[0013] The beneficial effects of adopting the above-mentioned further scheme are: by setting bypass pipes and their corresponding replacement valves and flow meters on the hydrogen and chlorine inlet pipes respectively, the gas inlet path can be flexibly switched before or during ignition, which facilitates gas replacement operation, so that a small flow of gas is supplied during ignition and a large flow of gas is used for combustion after successful ignition.

[0014] Furthermore, the scavenging assembly includes a hydrogen scavenging pipe and a chlorine scavenging pipe. The hydrogen scavenging pipe is connected to the hydrogen inlet pipe and is equipped with a hydrogen nitrogen purging valve. The chlorine scavenging pipe is connected to the chlorine inlet pipe and is equipped with a chlorine nitrogen purging valve.

[0015] The beneficial effects of adopting the above-mentioned further solution are: the scavenging assembly fills the intake pipeline with nitrogen through the hydrogen scavenging pipe and the chlorine scavenging pipe, effectively removing residual dangerous gases in the pipeline, ensuring a pure supply of hydrogen and chlorine, and reducing the risk of combustion and explosion caused by gas accumulation in the pipeline.

[0016] Furthermore, the ignition device includes an ignition gun, which is mounted on the movable component. An ignition air tube and an ignition hydrogen tube are installed inside the ignition gun, and the ends of the ignition hydrogen tube and the ignition air tube are equipped with ignition gun igniters. The ignition gun igniters are connected to an ignition power supply. The ignition gun is also equipped with a flame detector and an ignition gun limiter; An air solenoid valve is also installed on the ignition air pipe, and an ignition nitrogen pipe is also connected to the ignition hydrogen pipe. An ignition hydrogen valve is installed on the ignition hydrogen pipe, and an ignition nitrogen solenoid valve is installed on the ignition nitrogen pipe.

[0017] The beneficial effects of adopting the above-mentioned further solution are as follows: the ignition gun of the ignition assembly integrates the ignition air pipe, ignition hydrogen pipe, ignition gun igniter and ignition power supply, and is equipped with a flame detector and ignition gun limiter, as well as corresponding solenoid valves and valves, to realize the integrated and automated control of the ignition process. The flame detector can monitor the ignition status in real time, the ignition gun limiter can accurately control the position of the ignition gun, and the ignition nitrogen pipe can be purged. Multiple designs ensure the accuracy, safety and reliability of ignition operation.

[0018] Furthermore, the ignition air pipe includes a first air branch pipe, and the end of the first air branch pipe is connected to a first tapered pipe and a first straight pipe; The ignition hydrogen pipe includes a first hydrogen branch pipe, which is located inside the first air branch pipe and is concentrically arranged. The end of the first hydrogen branch pipe is connected to a second tapered pipe and a first straight pipe, and the end of the first straight pipe is located at the connection between the first tapered pipe and the first straight pipe.

[0019] The beneficial effects of adopting the above-mentioned further solution are: optimizing the end structure of the ignition air pipe and the ignition hydrogen pipe, and through the combination and concentric arrangement of the tapered pipe and the straight pipe, it is beneficial to fully mix hydrogen and air during ignition. At the same time, the tapered pipe increases the gas outlet velocity, resulting in a longer flame during ignition, improving the ignition success rate, and reducing the movement distance of the moving components.

[0020] A method for igniting a synthesis furnace, applied to the synthesis furnace ignition device described above, includes the following steps: S100. Check the status of each valve position; S200. Ignite with the ignition gun. If ignition is successful, proceed to the next step. If no flame is detected within 10 to 20 seconds, ignition fails and the failure procedure one is executed. S300. Detect the hydrogen concentration in the synthesis furnace. If the detection is qualified, proceed to the next step. If the detection concentration is unqualified, execute the failure procedure one. S400. The ignition gun from step S200 is automatically inserted into the synthesis furnace for ignition. If ignition fails, the second failure procedure is executed.

[0021] The beneficial effects of adopting the above-mentioned further solution are as follows: When this ignition method is applied to the aforementioned ignition device, through standardized procedural design, the valve position status is checked first, followed by ignition gun detection and hydrogen concentration detection in the synthesis furnace, and finally, automatic insertion ignition operation is performed, with a failure handling procedure set up, forming a complete automated ignition process. This ensures that the ignition process is carried out sequentially and safely, reduces human error, improves the ignition success rate, and lowers safety risks.

[0022] Furthermore, the failure procedure in steps S200 and S300 includes the following steps: S210. Close the hydrogen solenoid valve and the air solenoid valve, open the nitrogen solenoid valve to purge for 3 to 5 seconds, and then proceed to step S100 until it is qualified.

[0023] The beneficial effects of adopting the above-mentioned further solution are: when the ignition gun fails to ignite or the hydrogen concentration test is unqualified, by closing the relevant solenoid valve, opening the nitrogen solenoid valve for a short period of purging, and then re-executing the inspection steps, it is possible to promptly eliminate any potential safety factors, avoid the accumulation of hidden dangers, improve the safety and success rate of re-ignition, and ensure the continuity of the ignition process.

[0024] Furthermore, the second failed procedure in steps S200 and S400 includes the following steps: S410. Close the hydrogen solenoid valve and the air solenoid valve, open the nitrogen solenoid valve to purge for 3 to 5 seconds, then remove the ignition gun from the synthesis furnace and execute the emergency stop procedure.

[0025] The beneficial effects of adopting the above-mentioned further solutions are: when the ignition gun fails to ignite, taking measures such as closing the solenoid valve, nitrogen purging, withdrawing the ignition gun, and emergency stop can quickly terminate the unsafe ignition process, prevent the danger from escalating, and maximize the safety of equipment and personnel. Attached Figure Description

[0026] Figure 1 This is a specific embodiment of the synthesis furnace ignition device of the present invention; Figure 2 This is a schematic diagram of the ignition gun structure according to a specific embodiment of the present invention.

[0027] The attached diagram lists the components represented by each number as follows: 1. Lamp holder; 2. Hydrogen inlet pipe; 3. Chlorine inlet pipe; 4. Furnace door valve; 5. Hydrogen regulating valve; 6. Hydrogen shut-off valve; 7. Hydrogen ignition bypass valve; 8. Hydrogen replacement valve; 9. Hydrogen replacement flow meter; 10. Chlorine regulating valve; 11. Chlorine shut-off valve; 12. Chlorine ignition bypass valve; 13. Chlorine replacement valve; 14. Chlorine replacement flow meter; 15. Hydrogen nitrogen charging valve; 16. Chlorine nitrogen charging valve; 17. Air solenoid valve; 18. Ignition hydrogen valve; 19. Ignition nitrogen solenoid valve; 20. Ignition gun; 21. Ignition hydrogen pipe; 22. Ignition air pipe; 23. Ignition gun igniter; 24. Flame detector; 25. Ignition gun limiter; 26. Ignition power supply; 27. Suction valve; 28. Fan. Detailed Implementation

[0028] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "inner," "outer," "circumferential," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] like Figure 1 , Figure 2 As shown, a synthesis furnace ignition device includes a lamp head 1 with a furnace door valve 4. The lamp head 1 serves as the core area of ​​the combustion reaction, and its internal structure is adapted to the mixing and combustion requirements of the combustion gases. It can withstand the high-temperature combustion environment and guide the output path of the reaction products. The extraction assembly is connected to the lamp holder 1 and is used to extract gas from inside the lamp holder 1. By creating a negative pressure environment inside the lamp holder 1, it can effectively remove residual combustible gas or impurities. The purging assembly has its output connected to lamp holder 1 and used for purging lamp holder 1. Its main function is to use nitrogen gas to purge lamp holder 1 and its connected pipelines, removing any residual flammable and explosive gases and ensuring a safe ignition environment. The air intake assembly has an output end that is connected to the lamp holder 1 and is used to introduce combustion gas into the lamp holder. It can precisely control the type, proportion, flow rate and timing of the combustion gas, and provide a stable gas source for the combustion reaction in the lamp holder 1. Ignition assembly, which is mounted on the movable assembly, is used to ignite the combustion gas by extending into the lamp holder 1 after ignition and then retracting after ignition is completed.

[0033] like Figure 1 As shown, in some embodiments, the air extraction assembly includes an air extraction pipe that is connected to the lamp holder 1. A negative pressure valve 27 and a fan 28 are installed on the air extraction pipe. The negative pressure valve 27 is used to control the opening and closing of the air extraction passage, and the fan 28 provides the air extraction power. Through its operation, a negative pressure is formed in the air extraction pipe, thereby extracting the gas in the lamp holder 1. The negative pressure valve 27 and the fan 28 are electrically connected to a control component (not shown in the figure). The control component can automatically control the opening and closing state of the negative pressure valve 27 and the start, stop and speed adjustment of the fan 28 according to a preset program or real-time monitoring signal, so as to accurately control the air extraction process and the degree of negative pressure in the lamp holder 1.

[0034] In another embodiment, the air intake assembly includes a mixer, a hydrogen intake pipe 2, and a chlorine intake pipe 3. The mixer is mounted on the lamp holder 1 and can fully mix hydrogen and chlorine before they enter the lamp holder 1. Both the hydrogen intake pipe 2 and the chlorine intake pipe 3 are connected to the mixer. The hydrogen intake pipe 2 is also equipped with a hydrogen regulating valve 5 and a hydrogen shut-off valve 6. The hydrogen regulating valve 5 can adjust the flow rate of hydrogen as needed to control the intensity of the combustion reaction. The hydrogen shut-off valve 6 is used to quickly cut off the hydrogen supply when needed to ensure safety. The chlorine intake pipe 3 is also equipped with a chlorine regulating valve 10 and a chlorine shut-off valve 11, which function similarly to the corresponding valves on the hydrogen intake pipe 2, respectively for regulating the chlorine flow rate and cutting off the chlorine supply.

[0035] In this embodiment, a hydrogen bypass pipe is connected to the hydrogen inlet pipe 2, which is located between the hydrogen regulating valve 5 and the hydrogen shut-off valve 6. The other end of the hydrogen bypass pipe is connected to the inlet end of the hydrogen inlet pipe 2. A hydrogen ignition bypass valve 7 is also installed on the hydrogen bypass pipe. The hydrogen bypass pipe can provide a small flow hydrogen channel for the ignition stage. The hydrogen bypass pipe is also connected to a second hydrogen inlet pipe. A hydrogen replacement valve 8 and a hydrogen replacement flow meter 9 are installed on the second hydrogen inlet pipe. By opening the hydrogen replacement valve 8, replacement nitrogen can be introduced to replace the hydrogen bypass pipe and related pipelines. The hydrogen replacement flow meter 9 is used to monitor the flow rate of the replacement gas to ensure the replacement effect. The chlorine inlet pipe 3 is located between the chlorine regulating valve 10 and the chlorine shut-off valve 11 and is also connected to a chlorine bypass pipe. The other end of the chlorine bypass pipe is connected to the inlet end of the chlorine inlet pipe 3. A chlorine ignition bypass valve 12 is also installed on the chlorine bypass pipe. The chlorine bypass pipe is also connected to a second chlorine inlet pipe. A chlorine replacement valve 13 and a chlorine replacement flow meter 14 are installed on the second chlorine inlet pipe.

[0036] like Figure 1 As shown, in some embodiments, the scavenging assembly includes a hydrogen scavenging pipe and a chlorine scavenging pipe. The hydrogen scavenging pipe is connected to the hydrogen inlet pipe 2 and is equipped with a hydrogen nitrogen charging valve 15. The chlorine scavenging pipe is connected to the chlorine inlet pipe 3 and is equipped with a chlorine nitrogen charging valve 16. Specifically, nitrogen is introduced into the hydrogen inlet pipe 2 and the chlorine inlet pipe 3. With the help of the flow of nitrogen, residual hydrogen, chlorine or other impurity gases in the pipeline are scavenged and discharged to prevent the mixing of gases from different batches from causing safety hazards and to ensure that the gas entering the lamp head 1 each time is pure and qualified combustion gas.

[0037] In one embodiment, the ignition device includes an ignition gun 20, which is mounted on a movable component (not shown). An ignition air pipe 22 and an ignition hydrogen pipe 21 are installed inside the ignition gun 20. The ignition air pipe 22 supplies combustion air, and the ignition hydrogen pipe 21 supplies ignition hydrogen. Ignition gun igniters 23 are located at the ends of the ignition hydrogen pipe 21 and the ignition air pipe 22. The ignition gun igniters 23 are connected to an ignition power supply 26, which provides electrical energy to the ignition gun igniters 23, causing them to generate an electric spark that ignites the mixed gas supplied by the ignition hydrogen pipe 21 and the ignition air pipe 22. A flame detector 24 and an ignition gun limiter 25 are also installed on the ignition gun 20. The flame detector 24 can detect in real time whether a stable flame has formed inside the lamp head 1, providing a basis for determining whether ignition is successful. The ignition gun limiter 25 restricts the ignition gun 20 from extending into the lamp head 1. The position of the ignition gun 20 is ensured to be in the optimal ignition position. An air solenoid valve 17 is also installed on the ignition air pipe 22 to control the opening and closing of the ignition air pipe 22. The ignition hydrogen pipe 21 is also connected to the ignition nitrogen pipe. The ignition nitrogen pipe is used to purge the ignition hydrogen pipe 21 with nitrogen to remove residual hydrogen. An ignition hydrogen valve 18 is installed on the ignition hydrogen pipe 21 to control the opening and closing of the ignition hydrogen. An ignition nitrogen solenoid valve 19 is installed on the ignition nitrogen pipe to control the opening and closing of the ignition nitrogen.

[0038] like Figure 1 , Figure 2 As shown, in this embodiment, the ignition air pipe 22 includes a first air branch pipe, the end of which is connected to a first conical pipe and a first straight pipe, accelerating the airflow velocity and forming a specific airflow pattern, which is conducive to rapid ejection. The ignition hydrogen pipe 21 includes a first hydrogen branch pipe, which is located inside the first air branch pipe and concentrically arranged. The end of the first hydrogen branch pipe is connected to a second conical pipe and a first straight pipe, the end of which is located at the connection between the first conical pipe and the first straight pipe. This allows hydrogen to be ejected in the central region of the airflow, forming a good mixing effect with the air. At the same time, the design of the conical pipe increases the gas outlet velocity, enabling a longer flame to be formed during ignition, which is conducive to successfully igniting the combustion gas in the lamp head 1, and can reduce the distance that the moving component drives the ignition gun 20 to extend into the lamp head 1.

[0039] The present invention also provides a method for igniting a synthesis furnace, applied to the synthesis furnace ignition device described above, comprising the following steps: S100. Check the status of each valve position; S200. Ignite with the ignition gun. If ignition is successful, proceed to the next step. If no flame is detected within 10 to 20 seconds, ignition fails and the failure procedure one is executed. S300. Detect the hydrogen concentration in the synthesis furnace. If the detection is qualified, proceed to the next step. If the detection concentration is unqualified, execute the failure procedure one. Failure procedure one includes the following steps: S210. Close the hydrogen solenoid valve and the air solenoid valve, open the nitrogen solenoid valve to purge for 3 to 5 seconds, and then proceed to step S100 until it is qualified.

[0040] S400. The ignition gun from step S200 is automatically inserted into the synthesis furnace for ignition. If ignition fails, the second failure procedure is executed.

[0041] Failure procedure two includes the following steps: S410. Close the hydrogen solenoid valve and the air solenoid valve, open the nitrogen solenoid valve to purge for 3 to 5 seconds, then remove the ignition gun from the synthesis furnace and execute the emergency stop procedure.

[0042] In a specific embodiment, 1. Ignition Procedure: The ignition procedure consists of 5 parts. ① Ignition check: The procedure can only proceed if the following conditions are met by judging the valve position status, hydrogen and chlorine leakage, external preparation status and hydrogen content in the furnace; otherwise, a rectification prompt will be given.

[0043] Hydrogen system: Hydrogen regulating valve 5 is closed, hydrogen shut-off valve 6 is closed, hydrogen nitrogen charging valve 15 is closed, hydrogen ignition bypass valve 7 is closed, hydrogen replacement valve 8 is closed, and the flow rate of hydrogen replacement flow meter 9 is less than 5 m³ / s. 3 / h; Chlorine system: Check the following: chlorine regulating valve 10 (closed), chlorine shut-off valve 11 (closed), chlorine nitrogen charging valve 16 (closed), chlorine ignition bypass valve 12 (closed), chlorine purging valve 13 (closed), and chlorine purging flow meter 14 (flow rate less than 5 m³ / s). 3 / h; Ignition gun: Ignition gun hydrogen valve 18 is closed, air solenoid valve 17 is closed, ignition nitrogen solenoid valve 19 is closed, flame detector 24 is in the extinguished state, and ignition gun limit switch 25 is in the retracted state. Other: Furnace door valve 4 is closed, synthesis furnace door is open, blower 28 is running, vacuum valve 27 is open, and hydrogen content inside the furnace is less than 0.07%.

[0044] ② Ignition by ignition gun: After the ignition check determines that ignition is allowed, the ignition gun 20 is started for ignition. After opening the air solenoid valve 17, the ignition nitrogen solenoid valve 19 is opened. After 3 seconds, the ignition nitrogen solenoid valve 19 is closed, and the ignition gun igniter 23 starts to ignite. The ignition hydrogen valve 18 is opened. If the flame detector 24 detects a flame within 15 seconds, it will show that the ignition gun has ignited successfully, and the ignition gun igniter 23 will be closed. If no flame is detected within 15 seconds, the ignition fails, and the ignition failure procedure one will be automatically started.

[0045] ③ Pre-ignition confirmation: After the ignition gun successfully ignites, the pre-ignition confirmation is initiated. The flame detector of the ignition gun continuously detects the flame and prompts the input of the second detection value of hydrogen content in the synthesis furnace. If the hydrogen content in the furnace is qualified, the pre-ignition confirmation is displayed as complete; otherwise, the ignition fails and the ignition failure procedure one is automatically initiated.

[0046] ④ Synthesis Furnace Ignition: After confirming the pre-ignition process, start the synthesis furnace ignition. The ignition gun will automatically extend into the furnace chamber. Once in position, hydrogen will be introduced: open the hydrogen shut-off valve 6, close the hydrogen replacement valve 8, and open the hydrogen ignition bypass valve 7. After 15 seconds and confirmation by the flame detector 24 on the ignition gun that the hydrogen has ignited, chlorine will be introduced: open the chlorine shut-off valve 11, close the chlorine replacement valve 13, and open the chlorine ignition bypass valve 12. After 15 seconds and confirmation by the flame detector 24 on the ignition gun that the chlorine has ignited, close the ignition hydrogen valve 18 of the ignition gun, close the air solenoid valve 17, and open the ignition nitrogen solenoid valve 19. After 3 seconds, close the ignition nitrogen solenoid valve 19. Within 10 seconds, the flame detector 24 will continuously detect a flame. After that, the ignition gun 20 will be safely withdrawn. After confirming the withdrawal of the ignition gun, close the furnace door. Ignition is successful.

[0047] After the synthesis furnace is started and ignited, the flame detector 24 continuously monitors the flame. If no flame is detected, an ignition failure is issued, and the ignition failure procedure 2 is initiated.

[0048] ⑤ Ignition failure procedure: If ignition fails before ignition procedure ④, ignition failure procedure 1 will be automatically started, which is to ignite hydrogen valve 18, close air solenoid valve 17, open nitrogen solenoid valve 19, and ignite nitrogen solenoid valve 3 seconds later.

[0049] If ignition fails after ignition procedure ④, ignition failure procedure 2 will automatically start, which involves closing hydrogen solenoid valve 18 and air solenoid valve 17, and opening nitrogen solenoid valve 19. After 3 seconds, nitrogen solenoid valve 19 will be closed, and after 5 seconds, ignition gun 20 will be withdrawn from the furnace. After confirming that ignition gun 20 has withdrawn from the synthesis furnace, the furnace door will be closed, and an emergency stop signal for the synthesis furnace will be issued, starting the original emergency stop procedure for the synthesis furnace. Simultaneously, hydrogen shut-off valve 6 and chlorine shut-off valve 11 will be closed when ignition failure procedure 2 is started.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A synthesis furnace ignition device, characterized in that: include Lamp holder (1); A vacuum assembly, which is connected to the lamp head (1) and used to extract gas from the lamp head (1); A scavenging assembly, the output end of which is connected to the lamp head (1) and used for scavenging the lamp head (1); An air intake assembly, the output end of which is connected to the lamp head (1) and used to introduce combustion gas into the lamp head; An ignition assembly is mounted on a movable assembly and is used to ignite and extend into the lamp head (1) to ignite the combustion gas.

2. The ignition device for the synthesis furnace according to claim 1, characterized in that: The air extraction assembly includes an air extraction pipe that is connected to the lamp holder (1). A negative pressure valve (27) and a fan (28) are installed on the air extraction pipe. The negative pressure valve (27) and the fan (28) are electrically connected to the control assembly.

3. The ignition device for the synthesis furnace according to claim 1, characterized in that: The air intake assembly includes a mixer, a hydrogen intake pipe (2) and a chlorine intake pipe (3). The mixer is installed on the lamp holder (1), and both the hydrogen intake pipe (2) and the chlorine intake pipe (3) are connected to the mixer. The hydrogen inlet pipe (2) is also equipped with a hydrogen regulating valve (5) and a hydrogen shut-off valve (6), and the chlorine inlet pipe (3) is also equipped with a chlorine regulating valve (10) and a chlorine shut-off valve (11).

4. The ignition device for the synthesis furnace according to claim 3, characterized in that: The hydrogen inlet pipe (2) is located between the hydrogen regulating valve (5) and the hydrogen shut-off valve (6) and is also connected to a hydrogen bypass pipe. The other end of the hydrogen bypass pipe is connected to the inlet end of the hydrogen inlet pipe (2). A hydrogen ignition bypass valve (7) is also installed on the hydrogen bypass pipe. The hydrogen bypass pipe is also connected to a second hydrogen inlet pipe. A hydrogen replacement valve (8) and a hydrogen replacement flow meter (9) are installed on the second hydrogen inlet pipe. The chlorine inlet pipe (3) is located between the chlorine regulating valve (10) and the chlorine shut-off valve (11) and is also connected to a chlorine bypass pipe. The other end of the chlorine bypass pipe is connected to the inlet end of the chlorine inlet pipe (3). A chlorine ignition bypass valve (12) is also installed on the chlorine bypass pipe. The chlorine bypass pipe is also connected to a second chlorine inlet pipe. A chlorine replacement valve (13) and a chlorine replacement flow meter (14) are installed on the second chlorine inlet pipe.

5. The ignition device for the synthesis furnace according to claim 3, characterized in that: The scavenging assembly includes a hydrogen scavenging pipe and a chlorine scavenging pipe. The hydrogen scavenging pipe is connected to the hydrogen inlet pipe (2) and a hydrogen nitrogen charging valve (15) is installed on the hydrogen scavenging pipe. The chlorine scavenging pipe is connected to the chlorine inlet pipe (3) and a chlorine nitrogen charging valve (16) is installed on the chlorine scavenging pipe.

6. The ignition device for the synthesis furnace according to claim 1, characterized in that: The ignition device includes an ignition gun (20), which is mounted on the movable component. An ignition air tube (22) and an ignition hydrogen tube (21) are installed inside the ignition gun (20). The ends of the ignition hydrogen tube (21) and the ignition air tube (22) are equipped with ignition gun igniters (23), which are connected to an ignition power supply (26). The ignition gun (20) is also equipped with a flame detector (24) and an ignition gun limiter (25). An air solenoid valve (17) is also installed on the ignition air pipe (22), and an ignition nitrogen pipe is also connected to the ignition hydrogen pipe (21). An ignition hydrogen valve (18) is installed on the ignition hydrogen pipe (21), and an ignition nitrogen solenoid valve (19) is installed on the ignition nitrogen pipe.

7. The ignition device for a synthesis furnace according to claim 6, characterized in that: The ignition air pipe (22) includes a first air branch pipe, and the end of the first air branch pipe is connected to a first tapered pipe and a first straight pipe; The ignition hydrogen pipe (21) includes a first hydrogen branch pipe, which is located inside the first air branch pipe and is concentrically arranged. The end of the first hydrogen branch pipe is connected to a second conical pipe and a first straight pipe, and the end of the first straight pipe is located at the connection between the first conical pipe and the first straight pipe.

8. A method for igniting a synthesis furnace, applied to the synthesis furnace ignition apparatus as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S100. Check the status of each valve position; S200. Ignite with the ignition gun. If ignition is successful, proceed to the next step. If no flame is detected within 10 to 20 seconds, ignition fails and the failure procedure one is executed. S300. Detect the hydrogen concentration in the synthesis furnace. If the detection is qualified, proceed to the next step. If the detection concentration is unqualified, execute the failure procedure one. S400. The ignition gun from step S200 is automatically inserted into the synthesis furnace for ignition. If ignition fails, the failure procedure two is executed.

9. The method for igniting a synthesis furnace according to claim 8, characterized in that... The failed procedure in steps S200 and S300 includes the following steps: S210. Close the hydrogen solenoid valve and the air solenoid valve, open the nitrogen solenoid valve to purge for 3 to 5 seconds, and then proceed to step S100 until it is qualified.

10. The method for igniting a synthesis furnace according to claim 8, characterized in that... The failed procedure in steps S200 and S400 includes the following steps: S410. Close the hydrogen solenoid valve and the air solenoid valve, open the nitrogen solenoid valve to purge for 3 to 5 seconds, then remove the ignition gun from the synthesis furnace and execute the emergency stop procedure.

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