Air smoke abatement torch head of elevated torch

Abstract

The utility model provides an elevated torch air smoke abatement torch head, and relates to the technical field of torch heads, a separation cylinder is an annular cylinder with an upper opening and a lower opening, the top end of a settable air inlet pipeline is sleeved in the separation cylinder, and a gas mixing space is reserved above the settable air inlet pipeline in the separation cylinder. Through the arrangement of the separation cylinder, the gas entering the pipeline is primarily premixed with the air entering the channel inside the separation cylinder, the premixed gas and the air in the channel between the separation cylinder and the housing are secondarily mixed at the top of the separation cylinder, and the air is added into the gas for several times; air can be fully mixed in the set-off air, the air is uniformly distributed in the set-off air, and the air is easily and completely combusted during combustion, so that the incomplete combustion phenomenon caused by insufficient oxygen is reduced, the generation of black smoke is reduced, the black smoke emission can be radically reduced, the condition of using steam is omitted, and high efficiency and energy conservation are realized.

Description

Technical Field

[0001] This utility model relates to the field of torch head technology, specifically to an air-smoke-eliminating torch head for elevated torches. Background Technology

[0002] Flare gas contains a certain amount of high-carbon components such as high-carbon hydrocarbons, alkenes, and alkynes. During combustion, carbon atoms require more oxygen to be completely oxidized into carbon dioxide. When the oxygen supply is insufficient, some carbon atoms cannot burn completely, forming black carbon particles that are discharged with the flue gas, forming black smoke.

[0003] To address the black smoke problem during combustion, elevated flares often employ steam injection into the high-temperature zone of the flare gas to eliminate black smoke in practical applications. For example, the existing utility model patent with application number CN202122711285.8 discloses a multi-functional flare head for industrial elevated flares, which includes a wind shield and a combustion chamber. The wind shield and combustion chamber are located around the outlet flame zone of the main cylinder and are connected. An exhaust gas inlet is provided at the bottom of the main cylinder, and an induced draft jacket is provided on the outer wall of the main cylinder. The lower end of the induced draft jacket is closed, and the upper end is open. The upper end of the induced draft jacket is located inside the wind shield, and the lower end of the induced draft jacket is connected to the air supply mechanism. An ejector steam pipe is provided in the inner cavity of the main cylinder, and the lower end of the ejector steam pipe penetrates through the cylinder wall of the main cylinder and exits. A steam nozzle is provided at the lower end of the ejector steam pipe.

[0004] The above-mentioned technologies not only require a large amount of steam, but also have limited effect in eliminating black smoke. If the vented air and oxygen are not mixed sufficiently, the black smoke problem cannot be solved at its root. Therefore, a high-rise flare air extinguishing flare head can be provided that can ensure smokeless combustion of flared air without the need for smoke-extinguishing steam. Utility Model Content

[0005] The purpose of this utility model is to provide an air-smoke-eliminating torch head for elevated torches, in order to solve the problems mentioned in the background art, such as the fact that existing torches not only consume a large amount of steam, but also have limited smoke elimination effects and cannot fundamentally solve the black smoke problem when the fuel and oxygen are not fully mixed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air-smoke-extinguishing torch head for elevated torches, comprising a combustible air inlet pipe, a cover into which the combustible air inlet pipe is inserted from bottom to top, and an air inlet pipe inserted from the outside to the inside of the cover. An air distribution mechanism is fitted inside the cover, and the air distribution mechanism includes a dividing cylinder, which is an annular column with openings at the top and bottom. The top end of the combustible air inlet pipe is fitted inside the dividing cylinder, and a space for gas mixing is left inside the dividing cylinder above the combustible air inlet pipe.

[0007] Preferably, an outlet guide is installed inside the upper edge of the separator cylinder. The outlet guide is located at the center of the inner channel of the separator cylinder, and the outlet guide is a frustum with a large upper diameter and a small lower diameter.

[0008] Preferably, the height of the top of the cover exceeds the height of the top of the separator cylinder.

[0009] Preferably, a gas mixing assembly is provided inside the separator cylinder near the end of the combustible air inlet pipe. The gas mixing assembly includes an upper separator and a lower separator, which are nested together and together with the inner wall of the separator cylinder to form an extended channel.

[0010] Preferably, the lower separator includes a columnar portion with annular cross-sections at the upper and lower ends and openings at both ends, as well as a partition plate portion between the columnar periphery and the separator cylinder. The upper separator is a columnar portion with annular cross-sections at the upper end and an opening at the lower end. The inner diameter of the annular cross-section of the columnar portion of the upper separator is larger than the outer diameter of the annular cross-section of the columnar portion of the lower separator.

[0011] Preferably, the drainage assembly further includes an in-channel drainage component, which is installed between the upper isolator and the outlet drainage component. The in-channel drainage component is a frustum with a small upper bottom diameter and a large lower bottom diameter. The upper bottom surface of the in-channel drainage component matches the lower bottom surface of the outlet drainage component, and the lower bottom surface of the in-channel drainage component matches the upper end of the upper isolator. An annular protruding first inclined baffle is provided on the inner wall of the separator cylinder at the corresponding height of the outlet drainage component and the in-channel drainage component.

[0012] Preferably, a second inclined baffle with an annular inclined surface is provided between the bottom of the lower separator and the inner wall of the separator cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of the separator cylinder, allows the combustible air entering the pipeline to be premixed with the air entering the channel inside the separator cylinder. The premixed gas is then mixed a second time with the air in the channel between the separator cylinder and the cover at the top of the separator cylinder. By adding air to the combustible air in stages, the air can be fully mixed in the combustible air and evenly distributed in the combustible air, making it easier to burn completely during combustion. This reduces incomplete combustion caused by insufficient oxygen and reduces the generation of black smoke. This can reduce black smoke emissions from the source and eliminate the need to use steam, resulting in high efficiency and energy saving.

[0015] 2. By setting the outlet guide, the upper bottom surface of the outlet guide is at the same height as the top edge of the separator cylinder, and the top of the cover exceeds the top of the separator cylinder. When the premixed gas passes through the inclined surface of the outlet guide, the flow angle is changed. After being ejected from the top of the separator cylinder, it is inertially sprayed towards the part of the cover that exceeds the top of the separator cylinder. At this position, it mixes with another part of the air introduced from the air pipe through the channel between the separator cylinder and the cover. The inclined surface of the outlet guide improves the effect of merging the premixed gas with the other part of the air. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the elevated flare air-smoke extinguishing flare head cover of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the air distribution mechanism of this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the gas mixing component of this utility model.

[0019] Figure 4 This is a cross-sectional structural diagram of the drainage component of this utility model.

[0020] Figure 5 This is a schematic diagram of the air distribution mechanism and the top surface of the cover of this utility model.

[0021] In the diagram: 1. Combustible air inlet pipe; 2. Cover; 3. Air inlet pipe; 4. Air distribution mechanism; 41. Divider cylinder; 42. Drainage assembly; 421. Outlet drainage component; 4211. Second channel connector; 422. In-channel drainage component; 43. Gas mixing assembly; 431. Upper isolation component; 432. Lower isolation component; 44. First inclined baffle; 45. Second inclined baffle; 5. First channel connector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] One embodiment provided by this utility model: as follows Figure 1 As shown, an elevated flare air-smoke extinguishing flare head includes a combustible air inlet pipe 1, a cover 2, an air inlet pipe 3, an air distribution mechanism 4, and a first channel connector 5.

[0024] like Figure 1 As shown, the combustible air inlet pipe 1 is inserted into the interior of the casing 2 from bottom to top, and the air inlet pipe 3 is inserted into the bottom end of the combustible air inlet pipe 1 from the outside to the inside.

[0025] The air distribution mechanism 4 is installed inside the casing 2, such as Figure 2 As shown, the air distribution mechanism 4 includes a separator cylinder 41, a flow guiding assembly 42, a gas mixing assembly 43, a first inclined baffle 44, and a second inclined baffle 45. The outer periphery of the separator cylinder 41 is connected to the inner wall of the housing 2 through a first channel connector 5. The separator cylinder 41 is an annular cylinder with openings at the top and bottom. The separator cylinder 41 is located at the upper part of the combustible air inlet pipe 1. The top end of the combustible air inlet pipe 1 is fitted inside the separator cylinder 41. A gas mixing space is left inside the separator cylinder 41 above the combustible air inlet pipe 1. The axes of the separator cylinder 41, the combustible air inlet pipe 1, and the housing 2 are all on the same line.

[0026] like Figure 3 As shown, the air inlet duct 3 delivers a large amount of air into the housing 2 via an axial flow fan. After entering the housing 2, the air in the air inlet duct 3 is divided into two parts, one entering the channel inside the separator 41 and the other entering the channel between the separator 41 and the housing 2. This provides sufficient air for the combustible air, and the flowing air promotes the mixing of combustible air and oxygen. The combustible air inlet duct 1 enters the channel inside the separator 41. The combustible air inlet duct 1 and the air entering the channel inside the separator 41 undergo initial premixing inside the separator 41 via a gas mixing component 43 located near one end of the combustible air inlet duct 1. This premixing of combustible air and air allows for a preliminary mixing at a certain ratio. This staged mixing not only improves the uniformity of the combustible air-air mixture and increases the efficiency of complete combustion during combustion, but also, by adding air in advance, a relatively stable gas mixture is obtained before combustion, significantly reducing the risk of gas mixture explosion.

[0027] The gas mixing assembly 43 includes an upper separator 431 and a lower separator 432. The lower separator 432 includes a columnar portion with annular cross-sections at the upper and lower ends and openings at the lower end, as well as a partition plate portion between the columnar periphery and the separator cylinder 41. The upper separator 431 is a columnar portion with annular cross-sections at the upper end and an opening at the lower end. The inner diameter of the inner ring of the annular cross-section of the columnar portion of the upper separator 431 is larger than the outer diameter of the outer ring of the annular cross-section of the columnar portion of the lower separator 432.

[0028] A second inclined baffle 45 with an annular inclined surface is provided between the bottom of the lower isolation member 432 and the inner wall of the partition cylinder 41. The top of the combustible air entering the pipe 1 is located within the height range of the area of ​​the second inclined baffle 45. The outer diameter of the port of the combustible air entering the pipe 1 is smaller than the diameter of the inclined surface of the second inclined baffle 45 at the same height.

[0029] When combustible air is injected into the partition cylinder 41 from the top of the combustible air inlet pipe 1, the second inclined baffle 45 on the inclined surface provides guidance for the combustible air and air to enter, reducing flow dead angles and reducing the impact on the speed of gas flow into the gas mixing component 43.

[0030] The upper separator 431 and the lower separator 432 are nested together and together with the inner wall of the separator cylinder 41 form an extended channel. During the process of combustible air and air passing through this channel, the contact time is extended, which can further improve the mixing effect in the premixing step.

[0031] like Figure 4 and Figure 5 As shown, a drainage assembly 42 is installed inside the upper edge of the separator 41 via a second channel connector 4211. The drainage assembly 42 includes an outlet drainage component 421 and an in-channel drainage component 422. The outlet guide 421 is located at the center of the inner channel of the partition cylinder 41. The axes of the outlet guide 421, the inner channel guide 422, and the partition cylinder 41 are all on the same line. The outlet guide 421 is a frustum with a large upper diameter and a small lower diameter. The inner channel guide 422 is a frustum with a small upper diameter and a large lower diameter. The inner channel guide 422 is installed between the upper partition 431 and the outlet guide 421. The upper bottom surface of the inner channel guide 422 matches the lower bottom surface of the outlet guide 421. The lower bottom surface of the inner channel guide 422 matches the upper end of the upper partition 431. A first inclined baffle 44 with an annular protrusion is provided on the inner wall of the partition cylinder 41 at the corresponding heights of the outlet guide 421 and the inner channel guide 422. The combination of the first inclined baffle 44, the outlet guide 421, and the channel guide 422 provides a guiding channel for the premixed gas coming out of the gas mixing assembly 43, reducing dead flow angles and minimizing the impact on the flow velocity of the premixed gas.

[0032] The upper bottom surface of the outlet guide 421 is at the same height as the top edge of the separator 41. The top of the casing 2 is higher than the top of the separator 41. As the premixed gas passes the inclined surface of the outlet guide 421, its flow angle is changed. After exiting the top of the separator 41, it is inertially sprayed towards the portion of the casing 2 that extends beyond the top of the separator 41. At this location, it mixes with another portion of air from the air inlet pipe 3, which is ejected through the channel between the separator 41 and the casing 2. The inclined surface of the outlet guide 421 enhances the merging effect of the premixed gas and the other portion of air. The combustible air, after being mixed twice with the air, is ignited by a continuous lamp after exiting the top of the casing 2 for combustion.

[0033] By adding air to the combustible air in stages, the air can be fully mixed and evenly distributed within it, making it easier to burn completely during combustion. This reduces incomplete combustion caused by insufficient oxygen, thus reducing the production of black smoke. This approach reduces black smoke emissions at the source, eliminates the need for steam, and is highly efficient and energy-saving.

[0034] The above are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics in the solutions has not been described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An air-smoke-extinguishing torch head for elevated flares, comprising a combustible air inlet pipe (1), a cover (2) inserted into the combustible air inlet pipe (1) from bottom to top, and an air inlet pipe (3) inserted into the cover (2) from the outside to the inside, characterized in that: An air distribution mechanism (4) is installed inside the cover (2). The air distribution mechanism (4) includes a separator (41). The separator (41) is an annular column with openings at the top and bottom. The top of the combustible air inlet pipe (1) is fitted inside the separator (41). There is a space for gas mixing inside the separator (41) above the combustible air inlet pipe (1).

2. The elevated flare air-smoke extinguishing flare head according to claim 1, characterized in that: An outlet guide (421) is installed inside the upper edge of the separator (41). The outlet guide (421) is located in the center of the inner channel of the separator (41). The outlet guide (421) is a frustum with a large upper diameter and a small lower diameter.

3. The elevated flare air-smoke extinguishing flare head according to claim 2, characterized in that: The height of the top of the cover (2) exceeds the height of the top of the separator (41).

4. The elevated flare air-smoke extinguishing flare head according to claim 2, characterized in that: A gas mixing assembly (43) is provided inside the separator (41) near the end of the combustible air inlet pipe (1). The gas mixing assembly (43) includes an upper separator (431) and a lower separator (432). The upper separator (431) and the lower separator (432) are nested together and together with the inner wall of the separator (41) form an extended channel.

5. The elevated flare air-smoke extinguishing flare head according to claim 4, characterized in that: The lower separator (432) includes a columnar portion with annular cross-sections at the upper and lower ends and an interlayer portion between the columnar periphery and the separator cylinder (41). The upper separator (431) is a columnar portion with annular cross-sections at the upper end and an opening at the lower end. The inner diameter of the inner ring of the annular cross-section of the columnar portion of the upper separator (431) is larger than the outer diameter of the outer ring of the annular cross-section of the columnar portion of the lower separator (432).

6. The elevated flare air-smoke extinguishing flare head according to claim 5, characterized in that: The upper edge of the separator (41) is equipped with a flow-guiding component (42). The flow-guiding component (42) includes an outlet flow-guiding component (421) and an inner channel flow-guiding component (422). The inner channel flow-guiding component (422) is installed between the upper isolation component (431) and the outlet flow-guiding component (421). The inner channel flow-guiding component (422) is a frustum with a small upper bottom diameter and a large lower bottom diameter. The upper bottom surface of the inner channel flow-guiding component (422) matches the lower bottom surface of the outlet flow-guiding component (421). The lower bottom surface of the inner channel flow-guiding component (422) matches the upper end size of the upper isolation component (431). The inner wall of the separator (41) at the corresponding height of the outlet flow-guiding component (421) and the inner channel flow-guiding component (422) is provided with a first inclined baffle (44) with an annular protrusion.

7. The elevated flare air-smoke extinguishing flare head according to claim 5, characterized in that: A second inclined baffle (45) with an annular inclined surface is provided between the bottom of the lower isolation member (432) and the inner wall of the partition cylinder (41).

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