Low energy consumption spin-ejector smoke torch head

Abstract

The application provides a low-energy-consumption spin-induced smoke-free torch head, and belongs to the technical field of tail gas treatment. The low-energy-consumption spin-induced smoke-free torch head comprises a main torch head and a lower torch pipe fixed to the bottom of the main torch head, the outer wall of the lower torch pipe is provided with two groups of ignition mechanisms for igniting waste gas at the combustion part, the top of the main torch head is provided with a main induction mechanism, the main induction mechanism comprises a main induction pipe arranged at the top of the main torch head, the diameter of the main induction pipe is larger than the diameter of the main torch head, and a main induction area is arranged between the upper connecting frame and the main torch head. The low-energy-consumption spin-induced smoke-free torch head replaces full-steam induction by means of steam induction, active waste gas induction and auxiliary waste gas induction, thereby greatly reducing the steam preparation energy consumption, and further ensuring the combustible component concentration of waste gas after entering the combustion area by means of reducing the steam induction part and increasing the waste gas supplement, so that the phenomenon of insufficient combustion, flickering flame and even flameout caused by the combustible component concentration being lower than the lower limit of combustion is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas treatment technology, and in particular to a low-energy-consumption spin ejector flare head for smoke suppression. Background Technology

[0002] Elevated flare systems are widely used in the incineration of process waste gas in industries such as petrochemicals, coal chemicals, and metallurgy. The flare head is the core part of the entire elevated flare system. Its core design logic is that steam has high pressure and high speed jet characteristics, which can efficiently entrain surrounding air through the Venturi effect and fully mix with the waste gas in the flare mixing chamber and swirl structure. At the same time, the steam reacts with the water gas of the combustion products to disperse carbon black particles, achieving smokeless combustion and meeting environmental emission requirements.

[0003] In existing technologies, most flare heads use external input sources such as steam to inject air into the waste gas for mixing, and most of them are full steam injection. Therefore, they are overly dependent on external steam supply systems. Steam preparation requires a lot of energy, resulting in high energy consumption. Moreover, full steam injection sometimes leads to an imbalance in the flow rate between steam and waste gas. Steam can dilute the concentration of combustible components in the waste gas, which may fall below the lower combustion limit, resulting in incomplete combustion, flickering flames, or even flameout, thus affecting the flare's ability to treat waste gas.

[0004] Therefore, this application provides a low-energy spin ejector smoke extinguishing torch head to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a low-energy-consumption spin-ejector smoke extinguishing torch head, so as to solve the problems that existing torches rely excessively on external steam supply systems during use, resulting in high energy consumption, and the steam dilutes the concentration of combustible components in the exhaust gas, which may fall below the lower combustion limit, leading to incomplete combustion, flickering flames, or even flameout.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A low-energy spin-ejector smoke-extinguishing torch head includes a main torch head and a lower torch tube fixed at the bottom of the main torch head. The outer wall of the lower torch tube is provided with two sets of ignition mechanisms for igniting the exhaust gas in the combustion section. The main torch head is equipped with a main ejector mechanism at the top. The main ejector mechanism includes a main ejector tube located at the top of the main torch head. The diameter of the main ejector tube is larger than the diameter of the main torch head. A main ejector area is provided between the upper connecting frame and the main torch head for autonomous ejection of air when it flows into the upper connecting frame from inside the main torch head. The lower flare tube is equipped with an exhaust gas ejection mechanism, which includes multiple lower exhaust gas pipes located on the lower flare tube. One end of each lower exhaust gas pipe is located inside the lower flare tube with its opening facing downwards, and the other end is located outside the lower flare tube with its opening facing upwards. Each of the multiple lower exhaust gas pipes has an upper exhaust gas pipe at its external end. An exhaust gas ejector frame is located at the end of each of the multiple upper exhaust gas pipes away from the lower exhaust gas pipes. An annular exhaust gas injection section is located at the top of the exhaust gas ejector frame facing the main ejection area.

[0007] Optionally, the outer wall of the main torch head is fixed with multiple lower connecting frames, and the main ejector mechanism also includes an upper connecting frame fixed on the top of the lower connecting frames. The main ejector tube is fixedly installed at the end of the multiple upper connecting frames away from the lower connecting frames, and a combustion section is fixed on the top of the main ejector tube.

[0008] Optionally, the lower exhaust pipe is fixedly connected to the lower flare pipe, and a distance of 20cm to 30cm is left between the annular exhaust gas injection part on the exhaust gas ejector and the main ejector area.

[0009] Optionally, the outer wall of the lower flare tube is provided with multiple lifting sliding holes, each lower exhaust pipe is slidably connected to each lifting sliding hole, a closed sliding cylinder is slidably connected to the outer wall of the lower flare tube, the closed sliding cylinder covers the lifting sliding holes, and multiple lower exhaust pipes are fixedly connected to the closed sliding cylinder, and the exhaust gas ejector is slidably connected to the outer wall of the main flare head, and several swirl plates are fixedly provided on the outer wall of the exhaust gas ejector, and the swirl plates abut against the top of the main ejector area.

[0010] Optionally, the annular exhaust gas injection section consists of several injection holes opened on the top of the exhaust gas ejector, and multiple lower exhaust gas pipes are fixedly connected to a pressure boosting ring at one end inside the lower flare tube.

[0011] Optionally, a swirling section is fixed inside the main flare head, and a steam ejector mechanism is provided at the connection between the main flare head and the lower flare tube. The steam ejector mechanism includes a main steam ring pipe fixed on the outer wall of the connection between the main flare head and the lower flare tube. Multiple steam pipes are fixed on the outer wall of the main steam ring pipe. The end of the main flare head located below the swirling section is fixed with the same number of ejector pipes as the steam pipes. The outlet of the steam pipe is correspondingly set with the inlet of the ejector pipe.

[0012] Optionally, the top of the main steam ring pipe is provided with multiple steam extension pipes, the top of the multiple steam extension pipes is fixed with a steam ring pipe, and the outer wall of the steam ring pipe facing the interior of the combustion chamber is provided with a steam injection section.

[0013] Optionally, the ignition mechanism includes an ignition transmission section provided on the main ejector tube and the lower torch tube via a connecting part, an igniter is fixedly connected to the top of the ignition transmission section, and the output end of the igniter corresponds to the interior of the combustion section.

[0014] Optionally, the connecting part includes a fixed connecting frame fixed to the outer wall of the main ejector tube and the lower flare tube, a movable connecting frame slidably connected inside the fixed connecting frame, the movable connecting frame being fixedly connected to the ignition transmission part, two sliding rods fixedly provided at the top of the closed slide tube, the sliding rods slidingly passing through the fixed connecting frame on the lower flare tube, a push-pull connecting rod rotatably connected to the end of the outer wall of the sliding rod away from the closed slide tube, and the end of the push-pull connecting rod away from the sliding rod being rotatably connected to the movable connecting frame.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, a large ejector device is formed by the main ejector tube and the main flare head. This allows the swirling gas inside the main flare head to pass through the main ejector zone, introducing external air into the main ejector tube, thereby increasing the air content inside the exhaust gas. Furthermore, replacing the upper ejector zone with a steam ejector significantly reduces steam energy consumption. The exhaust gas flowing from the lower flare tube towards the main flare head enters the lower exhaust pipe, then passes through the lower and upper exhaust pipes into the exhaust gas ejector frame. Finally, through the annular exhaust gas injection section at the top of the exhaust gas ejector frame, the exhaust gas is injected through the main ejector zone into the main ejector tube. During the injection process, surrounding air can be further ejected through the main ejector zone into the main ejector tube. The main ejector tube is located inside the main ejector tube, thereby improving the ejection effect of air ejected from the upper ejector zone into the exhaust gas. By replacing the full steam ejector with steam ejection, active exhaust gas ejection, and exhaust gas-assisted ejection, not only is the energy consumption of steam preparation significantly reduced, but also the concentration of combustible components in the exhaust gas after entering the combustion zone can be further guaranteed by reducing the steam ejector section and increasing exhaust gas replenishment. This significantly reduces the phenomenon of combustible component concentration falling below the lower combustion limit, resulting in incomplete combustion, flickering flame, or even flameout. Furthermore, through the steam extension tube, some of the steam inside the main steam ring tube can be introduced into the steam ring tube at the top of the ejector tube to replenish steam in the combustion zone and perform steam smoke elimination.

[0016] After the exhaust gas enters the lower flare tube, some of it will enter the lower exhaust pipe. It will then be transmitted through the upper exhaust pipe to the exhaust gas ejector. The pressure ring narrows the gas outlet, further increasing the flow rate of the exhaust gas into the main flare head. Simultaneously, it prevents some exhaust gas from entering the lower exhaust pipe, reducing the exhaust gas flow rate and affecting the ejection air when passing through the main ejector area. The exhaust gas synchronously pushes the pressure ring upwards, causing multiple lower exhaust pipes to slide within multiple lifting and lowering sliding holes, and the sealing slide cylinder to slide on the outer wall of the lower flare tube. The sealing slide cylinder maintains a tight fit with the lower flare tube, ensuring... The sealing of the lower flare tube, after the sealed slide rises, the connection between the lower and upper exhaust pipes drives the exhaust gas ejector to rise synchronously, so that the swirl plate on the exhaust gas ejector abuts against the upper wall of the main ejector area. Thus, when the exhaust gas inside the main flare head enters the main ejector tube, the ejected gas passes through the main ejector area and is guided by the swirl plate, causing the air to swirl into the upper connecting frame. This creates a double swirling superposition of the swirling flow field inside the main ejector tube, greatly enhancing the centrifugal force and turbulence intensity, further strengthening mixing, stabilizing the flame, optimizing the flow field, and further improving combustion efficiency and combustion stability.

[0017] After the exhaust gas stops, the sealed slide tube returns to its original position on the lower flare tube, causing the slide rod to return to its original position simultaneously. The two ends of the push-pull connecting rod are respectively connected to the rotating connecting frame and the slide rod, pushing the moving connecting frame to slide outward inside the fixed connecting frame. This moves the ignition transmission part and the igniter away from the combustion part, so that when the flare is stopped, the igniter automatically and promptly moves away from the combustion part. This prevents the ignition system from being shut down in time, which could lead to the continuous ignition of some intermittently flowing combustible gas inside the flare. This avoids the risk of backfire or local explosion caused by the continuous ignition of some intermittently flowing combustible gas inside the flare. Furthermore, when the exhaust gas first starts and flows upward inside the flare, the pressure ring can only be pushed up after the gas flow rate inside the lower flare tube reaches a certain speed. This will drive the ignition mechanism to move closer to the combustion part again and ignite the exhaust gas mixture that has reached a certain flow rate, avoiding the risk of combustion backfire caused by insufficient exhaust gas flow rate. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a partial cross-sectional view of the main body of the present invention; Figure 4 This is a schematic diagram of the main ejector mechanism of the present invention; Figure 5 This is a schematic diagram of the steam ejector mechanism of the present invention; Figure 6 This is a schematic diagram of the exhaust gas ejector mechanism of the present invention; Figure 7 This is a schematic diagram of the ignition mechanism of the present invention; Figure 8 This is a schematic diagram showing the cooperation between the exhaust gas ejector mechanism and the ignition mechanism of the present invention; Figure 9 for Figure 8 Enlarged view of point A in the middle; Figure 10 This is a schematic diagram showing the exhaust gas ejector frame of the present invention being far away from the main ejector area; Figure 11 This is a schematic diagram showing the exhaust gas ejector frame of the present invention being located at a distance from the main ejector area.

[0020] 1. Main flare head; 101. Swirl section; 102. Lower connecting frame; 103. Lower flare tube; 2. Steam ejector mechanism; 201. Main steam ring pipe; 202. Steam pipe; 203. Ejector tube; 204. Steam extension pipe; 205. Steam ring pipe; 3. Main ejector mechanism; 301. Upper connecting frame; 302. Main ejector tube; 303. Combustion section; 304. Main ejector zone; 4. Exhaust gas ejector mechanism; 401. Lifting slide hole; 402. Lower exhaust gas pipe; 403. Enclosed slide cylinder; 404. Upper exhaust gas pipe; 405. Exhaust gas ejector frame; 406. Swirl plate; 407. Pressure boosting ring; 5. Ignition mechanism; 501. Fixed connecting frame; 502. Slide rod; 503. Push-pull connecting rod; 504. Moving connecting frame; 505. Ignition transmission section; 506. Ignition device.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0022] The low-energy spin-ejector smoke-extinguishing torch head provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0023] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0024] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0025] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0026] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0027] Example 1, as Figures 1 to 10 As shown, an embodiment of the present invention provides a low-energy spin ejector smoke extinguishing torch head, including a main torch head 1 and a lower torch tube 103 fixed at the bottom of the main torch head 1; The main torch head 1 is equipped with a main ejector mechanism 3 at its top. The main ejector mechanism 3 includes a main ejector tube 302 located at the top of the main torch head 1. The diameter of the main ejector tube 302 is larger than the diameter of the main torch head 1. A main ejector area 304 is provided between the upper connecting frame 301 and the main torch head 1 for autonomous ejection of air when it flows into the upper connecting frame 301 from inside the main torch head 1. Multiple lower connecting frames 102 are fixed to the outer wall of the main torch head 1. The main ejector mechanism 3 also includes an upper connecting frame 301 fixed to the top of the lower connecting frames 102. The ejector tube 302 is fixedly installed at one end of the multiple upper connecting frames 301 away from the lower connecting frame 102. The top of the main ejector tube 302 is fixedly provided with a combustion section 303. After the swirling mixed gas is input into the main ejector tube 302, the main ejector tube 302 and the main torch head 1 form a large ejector device, so that the swirling gas inside the main torch head 1 passes through the main ejector area 304 and introduces the external air into the main ejector tube 302, thereby increasing the air content inside the exhaust gas, and replacing the upper ejector area with a steam ejector method. The lower flare tube 103 is equipped with an exhaust gas ejection mechanism 4. The exhaust gas ejection mechanism 4 includes multiple lower exhaust gas pipes 402 disposed on the lower flare tube 103. One end of each lower exhaust gas pipe 402 is opened downwards inside the lower flare tube 103, and the other end is opened upwards outside the lower flare tube 103. Upper exhaust gas pipes 404 are respectively disposed at the outer ends of the multiple lower exhaust gas pipes 402. An exhaust gas ejector frame 405 is disposed at the end of the multiple upper exhaust gas pipes 404 away from the lower exhaust gas pipes 402. An annular exhaust gas injection section is disposed at the top end of the exhaust gas ejector frame 405 facing the main ejection area 304. The lower exhaust gas pipes 402 are fixedly connected to the lower flare tube 103, and a distance of 20cm to 30cm is maintained between the annular exhaust gas injection section on the exhaust gas ejector frame 405 and the main ejection area 304. The annular exhaust gas injection section consists of several injection holes opened on the top of the exhaust gas ejector frame 405, and multiple lower exhaust gas pipes 402 are fixedly connected to one end inside the lower flare tube 103 with a pressure ring 407. The exhaust gas flowing from the lower flare tube 103 to the main flare head 1 will enter the lower exhaust gas pipe 402, pass through the lower exhaust gas pipe 402 and the upper exhaust gas pipe 404 and enter the exhaust gas ejector frame 405. Then, through the annular exhaust gas injection section at the top of the exhaust gas ejector frame 405, the exhaust gas is injected into the main ejector tube 302 through the main ejector area 304. During the injection process, the surrounding air can be further ejected to pass through the main ejector area 304 and enter the main ejector tube 302, thereby improving the ejection effect of the air ejected from the upper ejector area into the exhaust gas. A swirling section 101 is fixed inside the main flare head 1. A steam ejector mechanism 2 is provided at the connection between the main flare head 1 and the lower flare tube 103. The steam ejector mechanism 2 includes a main steam ring pipe 201 fixed on the outer wall of the connection between the main flare head 1 and the lower flare tube 103. Multiple steam pipes 202 are fixed on the outer wall of the main steam ring pipe 201. The end of the main flare head 1 located below the swirling section 101 is fixed with the same number of ejector pipes 203 as the steam pipes 202. The outlet of the steam pipes 202 and the inlet of the ejector pipes 203 are correspondingly set. After the exhaust gas is transmitted to the lower flare tube 103, steam is supplied to the main steam ring pipe 201 through the steam supply system. Air is ejected into the main flare head 1 through the cooperation of the steam pipes 202 and the ejector pipes 203, so that the steam and air enter the interior of the flowing exhaust gas. When the exhaust gas passes through the swirling section 101, it swirls, so that the steam and air injected into the exhaust gas are mixed and then continuously transmitted upward. The top of the main steam ring pipe 201 is provided with multiple steam extension pipes 204, and the top of the multiple steam extension pipes 204 is fixed with a steam ring pipe 205. The outer wall of the steam ring pipe 205 facing the inside of the combustion section 303 is provided with a steam injection section. Through the steam extension pipes 204, some of the steam inside the main steam ring pipe 201 can be introduced into the steam ring pipe 205 at the top of the injector pipe 203 to supplement steam in the combustion zone and perform steam smoke elimination. The outer wall of the lower flare tube 103 is provided with two sets of ignition mechanisms 5 for igniting the exhaust gas in the combustion section 303. The ignition mechanism 5 includes an ignition transmission section 505 connected to the main ejector tube 302 and the lower flare tube 103 via a connecting part. An igniter 506 is fixedly connected to the top of the ignition transmission section 505, and the output end of the igniter 506 corresponds to the inside of the combustion section 303 for igniting the mixture in the combustion section 303.

[0028] The working principle of the technical solution provided by this invention is as follows: After the exhaust gas is transferred to the lower flare tube 103, steam is supplied to the main steam ring pipe 201 through the steam supply system. Air is then injected into the main flare head 1 through the steam pipe 202 and the ejector pipe 203, allowing steam and air to enter the flowing exhaust gas. As the exhaust gas passes through the swirl section 101, it spins, mixing the injected steam and air. This mixture continues to flow upwards, generating a spinning gas mixture that is then input into the main ejector pipe 302. The main ejector pipe 302 and the main flare head 1 form a large ejector device, allowing the swirling gas inside the main flare head 1 to pass through the main ejector area 304, introducing external air into the main ejector pipe 302. This increases the air content inside the exhaust gas and replaces the upper ejector area with steam ejection, significantly reducing steam energy consumption. Furthermore, the exhaust gas flowing from the lower flare tube 103 to the main flare head 1 enters the lower exhaust gas pipe 402, passing through the lower exhaust gas pipe 402 and the upper exhaust gas pipe 403. 4. The exhaust gas enters the interior of the exhaust gas ejector 405, and then through the annular exhaust gas injection section at the top of the exhaust gas ejector 405, the exhaust gas is injected into the interior of the main ejector tube 302 via the main ejector zone 304. During the injection process, the surrounding air can be further ejected to pass through the main ejector zone 304 and enter the interior of the main ejector tube 302, thereby improving the ejection effect of the air ejected from the upper ejector zone into the exhaust gas interior. By replacing the full steam ejection with steam ejection, active exhaust gas ejection, and auxiliary exhaust gas ejection, and by reducing the steam ejector section and increasing the exhaust gas replenishment, the concentration of combustible components in the exhaust gas after entering the combustion zone can be further guaranteed, greatly reducing the phenomenon of incomplete combustion, flickering flame, or even flameout caused by the concentration of combustible components falling below the lower combustion limit. In addition, through the steam extension pipe 204, some of the steam inside the main steam ring pipe 201 can be introduced into the steam ring pipe 205 at the top of the ejector tube 203 to replenish steam in the combustion zone for steam smoke elimination.

[0029] Example 2, as Figures 1 to 9 and Figure 11As shown, the outer wall of the lower flare tube 103 has multiple lifting and lowering sliding holes 401. Each lower exhaust pipe 402 is slidably connected to each lifting and lowering sliding hole 401. A closed sliding cylinder 403 is slidably connected to the outer wall of the lower flare tube 103, covering the lifting and lowering sliding holes 401. The multiple lower exhaust pipes 402 are all fixedly connected to the closed sliding cylinder 403. The exhaust gas ejector frame 405 is slidably connected to the outer wall of the main flare head 1. Several swirling plates 406 are fixedly provided on the outer wall of the exhaust gas ejector frame 405, and the swirling plates 406 abut against the top of the main ejector area 304. The exhaust gas will synchronously push the pressurizing ring 407 to rise, so that the multiple lower exhaust pipes 402 slide inside the multiple lifting and lowering sliding holes 401 respectively, and the closed sliding cylinder 403 is outside the lower flare tube 103. The wall slides, and the closed slide cylinder 403 is tightly fitted with the lower flare tube 103 to ensure the sealing of the lower flare tube 103. After the closed slide cylinder 403 rises, it can push the exhaust gas ejector 405 to rise synchronously through the connection between the lower exhaust gas pipe 402 and the upper exhaust gas pipe 404. This causes the swirl plate 406 on the exhaust gas ejector 405 to abut against the upper wall of the main ejector area 304. As a result, when the exhaust gas inside the main flare head 1 enters the main ejector tube 302, the ejected gas passes through the main ejector area 304 and is guided by the swirl plate 406. This causes the air swirling into the upper connecting frame 301, forming a double swirling superposition in the swirling field inside the main ejector tube 302. The centrifugal force and turbulence intensity are greatly enhanced, further strengthening the mixing, stabilizing the flame, and optimizing the flow field. The connecting part includes a fixed connecting frame 501 fixed to the outer wall of the main ejector tube 302 and the lower flare tube 103. A movable connecting frame 504 is slidably connected inside the fixed connecting frame 501. The movable connecting frame 504 is fixedly connected to the ignition transmission part 505. Two sliding rods 502 are fixedly provided on the top of the closed slide tube 403. The sliding rods 502 slide through the fixed connecting frame 501 on the lower flare tube 103. A push-pull connecting rod 503 is rotatably connected to the end of the outer wall of the sliding rod 502 away from the closed slide tube 403. The push-pull connecting rod 503 is rotatably connected to the end of the outer wall of the sliding rod 502 away from the sliding rod 503. One end of 02 is rotatably connected to the moving connecting frame 504. The closed slide cylinder 403 is reset downward on the lower torch tube 103, so that the slide rod 502 is reset synchronously. The two ends of the push-pull connecting rod 503 are rotatably connected to the moving connecting frame 504 and the slide rod 502 respectively, pushing the moving connecting frame 504 to slide outward inside the fixed connecting frame 501, so that the ignition transmission part 505 and the igniter 506 are away from the combustion part 303. Thus, when the torch is stopped, the igniter 506 can automatically and timely move away from the combustion part 303.

[0030] The working principle of the technical solution provided by this invention is as follows: After the exhaust gas enters the lower flare tube 103, some of it enters the lower exhaust pipe 402 and then flows through the upper exhaust pipe 404 into the exhaust gas ejector 405. The pressure ring 407 narrows the gas outlet, further increasing the flow rate of the exhaust gas into the main flare head 1. Simultaneously, it prevents some exhaust gas from entering the lower exhaust pipe 402, reducing the exhaust gas flow rate and avoiding interference with the air ejection when the exhaust gas passes through the main ejector area 304. The exhaust gas synchronously pushes the pressure ring 407 upwards, causing the multiple lower exhaust pipes 402 to slide within multiple lifting sliding holes 401, and the sealing slide cylinder 403 to slide on the outer wall of the lower flare tube 103. The sealing slide cylinder 403 is tightly fitted to the lower flare tube 103. To ensure the sealing of the lower flare tube 103, after the sealed slide 403 rises, the connection between the lower exhaust pipe 402 and the upper exhaust pipe 404 can push the exhaust gas ejector 405 to rise synchronously, so that the swirl plate 406 on the exhaust gas ejector 405 abuts against the upper wall of the main ejector area 304. Thus, when the exhaust gas inside the main flare head 1 enters the main ejector tube 302, the ejected gas passes through the main ejector area 304 and is guided by the swirl plate 406, so that the air swirls into the upper connecting frame 301, and the swirling flow field inside the main ejector tube 302 forms a double swirling flow superposition, which greatly enhances the centrifugal force and turbulence intensity, further strengthens the mixing, stabilizes the flame, optimizes the flow field, and further improves the combustion efficiency and combustion stability. After the exhaust gas stops, the sealed slide 403 returns to its original position on the lower flare tube 103, causing the slide rod 502 to return to its original position simultaneously. The push-pull connecting rod 503 can be rotatably connected to the moving connecting frame 504 and the slide rod 502 at both ends, pushing the moving connecting frame 504 outward within the fixed connecting frame 501. This causes the ignition transmission section 505 and the igniter 506 to move away from the combustion section 303. Therefore, when the flare is shut down, the igniter 506 automatically and promptly moves away from the combustion section 303, preventing damage caused by failure to shut down the ignition system in a timely manner. This ensures the continuous ignition of some of the intermittently flowing combustible gas inside the flare, thereby avoiding the risk of backfire or local explosion caused by the continuous ignition of some of the intermittently flowing combustible gas inside the flare. Moreover, when the exhaust gas first starts flowing upward inside the flare, the pressure ring 407 can only be pushed up after the gas flow rate inside the lower flare tube 103 reaches a certain speed, thereby driving the ignition mechanism 5 to move closer to the combustion section 303 again and ignite the exhaust gas mixture that has reached a certain flow rate, avoiding the risk of combustion backfire caused by insufficient exhaust gas flow rate.

[0031] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0032] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A low-energy-consumption spin-ejector smoke-extinguishing torch head, comprising a main torch head (1) and a lower torch tube (103) fixed to the bottom of the main torch head (1), wherein the outer wall of the lower torch tube (103) is provided with two sets of ignition mechanisms (5) for igniting the exhaust gas at the combustion section (303), characterized in that: The main torch head (1) is provided with a main ejector mechanism (3) at the top. The main ejector mechanism (3) includes a main ejector tube (302) located at the top of the main torch head (1). The diameter of the main ejector tube (302) is larger than the diameter of the main torch head (1). A main ejector area (304) is provided between the upper connecting frame (301) and the main torch head (1) for autonomously ejecting air when it flows into the upper connecting frame (301) from inside the main torch head (1). The lower flare tube (103) is provided with an exhaust gas ejector mechanism (4). The exhaust gas ejector mechanism (4) includes multiple lower exhaust gas pipes (402) provided on the lower flare tube (103). One end of the pipe is opened downward and located inside the lower flare tube (103), while the other end is opened upward and located outside the lower flare tube (103). The upper exhaust gas pipe (404) is provided at the outer end of the multiple lower exhaust gas pipes (402). An exhaust gas ejector frame (405) is provided at the end of the multiple upper exhaust gas pipes (404) away from the lower exhaust gas pipes (402). An annular exhaust gas injection section is provided at the top of the exhaust gas ejector frame (405) facing the main ejector area (304).

2. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 1, characterized in that, The outer wall of the main torch head (1) is fixed with multiple lower connecting frames (102), and the main ejector mechanism (3) also includes an upper connecting frame (301) fixed on the top of the lower connecting frame (102). The main ejector tube (302) and the multiple upper connecting frames (301) are fixed at one end away from the lower connecting frame (102), and a combustion part (303) is fixed on the top of the main ejector tube (302).

3. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 2, characterized in that, The lower exhaust pipe (402) is fixedly connected to the lower flare pipe (103), and there is a distance of 20cm to 30cm between the annular exhaust gas injection part on the exhaust gas ejector frame (405) and the main ejector area (304).

4. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 2, characterized in that, The outer wall of the lower flare tube (103) is provided with multiple lifting sliding holes (401), and each lower exhaust pipe (402) is slidably connected to each lifting sliding hole (401). The outer wall of the lower flare tube (103) is slidably connected with a closed sliding cylinder (403), which covers the lifting sliding hole (401). Multiple lower exhaust pipes (402) are fixedly connected to the closed sliding cylinder (403). The exhaust gas ejector (405) is slidably connected to the outer wall of the main flare head (1). Several swirl plates (406) are fixedly provided on the outer wall of the exhaust gas ejector (405), and the swirl plates (406) abut against the top of the main ejector area (304).

5. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 3 or 4, characterized in that, The annular exhaust gas injection section consists of several injection holes opened on the top of the exhaust gas ejector (405), and multiple lower exhaust gas pipes (402) are fixedly connected to one end of the lower flare pipe (103) with a pressure ring (407).

6. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 5, characterized in that, The main torch head (1) is equipped with a swirling section (101) inside. A steam ejector mechanism (2) is provided at the connection between the main torch head (1) and the lower torch tube (103). The steam ejector mechanism (2) includes a main steam ring pipe (201) fixed on the outer wall of the connection between the main torch head (1) and the lower torch tube (103). Multiple steam pipes (202) are fixed on the outer wall of the main steam ring pipe (201). The same number of ejector pipes (203) as the steam pipes (202) are fixed at one end of the main torch head (1) below the swirling section (101). The outlet of the steam pipe (202) is correspondingly set with the inlet of the ejector pipe (203).

7. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 6, characterized in that, The top of the main steam ring pipe (201) is provided with multiple steam extension pipes (204), and the top of the multiple steam extension pipes (204) is fixed with a steam ring pipe (205). The outer wall of the steam ring pipe (205) facing the interior of the combustion section (303) is provided with a steam injection section.

8. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 4, characterized in that, The ignition mechanism (5) includes an ignition transmission section (505) provided on the main ejector tube (302) and the lower torch tube (103) via a connecting part. An igniter (506) is fixedly connected to the top of the ignition transmission section (505), and the output end of the igniter (506) corresponds to the inside of the combustion section (303).

9. The low-energy-consumption spin-ejector smoke-extinguishing torch head according to claim 8, characterized in that, The connecting part includes a fixed connecting frame (501) fixed to the outer wall of the main ejector tube (302) and the lower torch tube (103). A movable connecting frame (504) is slidably connected inside the fixed connecting frame (501). The movable connecting frame (504) is fixedly connected to the ignition transmission part (505). Two sliding rods (502) are fixedly provided on the top of the closed slide tube (403). The sliding rods (502) slide through the fixed connecting frame (501) on the lower torch tube (103). A push-pull connecting rod (503) is rotatably connected to the end of the outer wall of the sliding rod (502) away from the closed slide tube (403). The end of the push-pull connecting rod (503) away from the sliding rod (502) is rotatably connected to the movable connecting frame (504).

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