CN215863468U - Flare system for treating wet acidic flare gas - Google Patents

Abstract

The utility model relates to the technical field of flare systems, and discloses a flare system for treating wet acidic flare gas, which comprises: the lower cylinder is communicated with a connecting pipeline for conveying wet acidic flare gas; a fuel assembly for supplying fuel; the torch head comprises a torch barrel body and two ignition assemblies, the torch barrel body is communicated with the lower barrel body, each ignition assembly comprises an incandescent lamp, a high-altitude igniter and a deflagration tube, and the incandescent lamp and the deflagration tube of each ignition assembly are distributed along the radial direction of the torch barrel body; the combustion accompanying assembly is fixed on the torch barrel and comprises a first combustion accompanying pipe and a second combustion accompanying pipe, the second combustion accompanying pipe is arranged along the periphery of the torch barrel, and the upper end of the second combustion accompanying pipe is provided with a plurality of combustion accompanying holes. According to the flare system for processing the wet acid flare gas, disclosed by the utility model, the additionally arranged combustion accompanying assembly can outwards flow out fuel, the combustion efficiency of the wet acid flare gas in the flare barrel body can be increased by burning the fuel, and the processing process of the wet acid flare gas is simplified.

Description

Flare system for treating wet acidic flare gas

Technical Field

The utility model relates to the technical field of flare systems, in particular to a flare system for treating wet acidic flare gas.

Background

In the metallurgy and chemical industry, wet acid flare gas is sometimes discharged, the direct discharge not only pollutes the environment, but also has certain potential safety hazard, so a flare system for processing the wet acid flare gas is needed to be used for carrying out combustion processing on the wet acid flare gas, and the processed gas meets the discharge standard. The existing flare system for processing the wet acid flare gas often has the condition of incomplete combustion of the wet acid flare gas when processing the wet acid flare gas, so that the secondary treatment is needed to be carried out on the processed gas, and the treatment process is complicated.

SUMMERY OF THE UTILITY MODEL

Based on the above, the present invention aims to provide a flare system for treating wet acid flare gas, so that the wet acid flare gas can be completely combusted without secondary treatment.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a flare system for processing wet sour flare gas, comprising: the lower cylinder is communicated with a connecting pipeline for conveying wet acidic flare gas; a fuel assembly for supplying fuel; the torch head is arranged at the upper end of the lower barrel and comprises a torch barrel and two ignition assemblies, the torch barrel is communicated with the lower barrel, the two ignition assemblies are symmetrically arranged on the outer side of the torch barrel, the central axis of a flame outlet of each ignition assembly is intersected with the central axis of the torch barrel, each ignition assembly comprises an incandescent lamp, a high altitude igniter and a deflagration pipe, the incandescent lamp, the high altitude igniter and the deflagration pipe are communicated with the fuel assembly, the central angles of the incandescent lamp and the high altitude igniter on the torch barrel are 20-30 degrees, and the incandescent lamp and the deflagration pipe of each ignition assembly are distributed along the radial direction of the torch barrel; the combustion accompanying assembly is fixed on the torch barrel and comprises a first combustion accompanying pipe and a second combustion accompanying pipe, the first combustion accompanying pipe extends along the axial direction of the torch barrel, one end of the first combustion accompanying pipe is communicated with the fuel assembly, the other end of the first combustion accompanying pipe is communicated with the second combustion accompanying pipe, the second combustion accompanying pipe is arranged along the periphery of the torch barrel, and a plurality of combustion accompanying holes are formed in the upper end of the second combustion accompanying pipe.

As a preferred embodiment of a flare system for processing wet sour flare gas, the flare system for processing wet sour flare gas further comprises: the nitrogen component can introduce nitrogen flowing from bottom to top into the torch cylinder; and the flame arrester is arranged at the outlet of the connecting pipeline.

As a preferable scheme of the flare system for processing the wet acidic flare gas, the flare system for processing the wet acidic flare gas further comprises a wind breaking ring, the wind breaking ring comprises a plurality of wind breaking plates distributed at intervals along the periphery of the flare barrel, the wind breaking plates are fixed on the outer side of the flare barrel and extend along the axial direction of the flare barrel, and the upper ends of the wind breaking plates are inclined towards the direction close to the central axis of the flare barrel.

As a preferable scheme of the flare system for processing the wet acid flare gas, the flare system for processing the wet acid flare gas also comprises a liquid separation tank, and the wet acid flare gas enters the flare barrel body through the liquid separation tank and the lower barrel body.

As a preferable scheme of the flare system for processing the wet acidic flare gas, a pressure sensor and a pressure adjusting piece are arranged on the separating tank, the pressure sensor is used for detecting the pressure of the wet acidic flare gas in the separating tank, and the pressure adjusting piece is configured to adjust the pressure of the wet acidic flare gas.

As a preferred scheme of the flare system for processing the wet acidic flare gas, a nitrogen supply main pipe is arranged at an inlet of the liquid separation tank, the flare system for processing the wet acidic flare gas further comprises a nitrogen supplement assembly which can be communicated with the nitrogen supply main pipe, and the nitrogen supplement assembly can provide nitrogen for the flare barrel through the lower barrel from bottom to top.

As a preferred embodiment of a flare system for processing wet sour flare gas, the high altitude igniter comprises: the igniter inner tube is communicated with the fuel assembly, and a plurality of first connecting holes which are distributed in sequence are formed in the igniter inner tube along the axial direction of the torch barrel; the igniter outer pipe is sleeved on the igniter inner pipe, the igniter inner pipe and the igniter outer pipe are surrounded to form a mixing cavity communicated with the first communicating hole, the igniter outer pipe is provided with a plurality of second communicating holes which are distributed in sequence along the axial direction of the torch barrel, and the second communicating holes are used for communicating the mixing cavity with the outside.

As an optimal scheme of the flare system for processing the wet acid flare gas, the flare system for processing the wet acid flare gas further comprises a fluid seal arranged in the flare barrel, the fluid seal is positioned at the lower part of the flare barrel and comprises a plurality of flare barrels distributed along the axial direction of the flare barrel at intervals, the large opening end of each flare barrel is positioned below the small opening end of the flare barrel, the diameter of the small opening end of each flare barrel is sequentially increased from bottom to top along the axial direction of the flare barrel.

The utility model has the beneficial effects that: the fuel assembly of the flare system for processing the wet acid flare gas can provide fuel for the ignition assembly so as to ignite the wet acid flare gas in the flare barrel, the additional combustion accompanying assembly can flow the fuel outwards, the combustion efficiency of the wet acid flare gas in the flare barrel can be increased by the combustion of the fuel, the wet acid flare gas can be completely combusted, secondary treatment is not needed, and the treatment process of the wet acid flare gas is simplified.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a top view of a flare system for processing wet sour flare gas as provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

fig. 3 is a cross-sectional view taken along B-B of fig. 2.

In the figure:

1. a torch cylinder;

2. an ignition assembly; 21. a beacon light; 22. a high altitude igniter; 221. an igniter inner tube; 222. an igniter outer tube; 2220. a second communication hole; 23. a deflagration tube;

3. a wind breaking ring; 31. a wind breaking plate;

4. a burning accompanying component; 41. a first burning accompanying pipe; 42. a second burning accompanying pipe; 420. burning the hole;

5. a fluid seal;

6. a flame stabilizing block; 60. and (4) flame stabilizing holes.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a flare system for processing wet acid flare gas, as shown in fig. 1 to 3, which comprises a lower barrel (not shown in the figure), a fuel assembly (not shown in the figure), a flare head and a combustion accompanying assembly 4, wherein the lower barrel is communicated with a connecting pipeline for conveying the wet acid flare gas, the fuel assembly is used for supplying fuel, the flare head is arranged at the upper end of the lower barrel and comprises a flare barrel 1 and two ignition assemblies 2, the flare barrel 1 is communicated with the lower barrel, the two ignition assemblies 2 are symmetrically arranged at the outer side of the flare barrel 1, the central axis of the flame outlet of the ignition assembly 2 is intersected with the central axis of the flare barrel 1, as shown in fig. 1, each ignition assembly 2 comprises an incandescent lamp 21, a high altitude igniter 22 and a deflagration pipe 23, the incandescent lamp 21, the high altitude igniter 22 and the deflagration pipe 23 are communicated with the fuel assembly, the central angles of the incandescent lamp 21 and the high altitude igniter 22 on the flare barrel 1 are 20 degrees to 30 degrees, the pilot burner 21 and the deflagration tube 23 of each ignition assembly 2 are distributed along the radial direction of the torch barrel 1.

Because the calorific value of wet acid flare gas is lower, as shown in fig. 1 and fig. 3, the burning accompanying assembly 4 fixed on the flare barrel 1 can ignite the wet acid flare gas, and ensure the thorough burning of the wet acid flare gas, the burning accompanying assembly 4 comprises a first burning accompanying pipe 41 and a second burning accompanying pipe 42, the first burning accompanying pipe 41 extends along the axial direction of the flare barrel 1, one end of the first burning accompanying pipe 41 is communicated with the fuel assembly, the other end of the first burning accompanying pipe 41 is communicated with the second burning accompanying pipe 42, the second burning accompanying pipe 42 is arranged along the periphery of the flare barrel 1, and the upper end of the second burning accompanying pipe 42 is provided with a plurality of burning accompanying holes 420. Because the second burning accompanying pipe 42 is arranged along the periphery of the flare barrel 1, the temperature of the upper end of the flare barrel 1 can be better increased by the fuel discharged through the burning accompanying holes 420 on the second burning accompanying pipe 42, so that the wet acid flare gas can be completely burnt. The flow of the fuel in the combustion accompanying assembly 4 is controlled according to the actual combustion condition, if the combustion condition is better, the flow of the fuel discharged by the combustion accompanying assembly 4 can be properly reduced; if the combustion conditions are poor, the flow rate of the fuel discharged through the co-combustion assembly 4 can be increased by a certain amount, so that the wet sour flare gas can be sufficiently combusted.

Specifically, as shown in FIG. 1, the pilot light 21 and the overhead igniter 22 correspond to a central angle of 25 ° on the torch barrel 1, and this arrangement facilitates the ignition assembly 2 to ignite the wet acid torch gas, so that the wet acid torch gas is sufficiently combusted. In other embodiments, the central angles of the pilot light 21 and the overhead igniter 22 on the torch barrel 1 may be other angles in the range of 20 ° to 30 °, which are selected according to actual needs.

It should be noted that the inner diameter of the flare barrel 1 of the flare system for processing the wet acid flare gas in the embodiment is 400mm, the maximum flow rate for processing the wet acid flare gas is 41.707t/h, and the maximum design back pressure is not higher than 50 kPa. The fuel of this embodiment is natural gas or atomizing fluid, and wet sour torch gas can be lighted to the fuel after the burning to make the combustible gas in the wet sour torch gas obtain thoroughly burning, realize the processing to wet sour torch gas. In other embodiments, the inner diameter, the maximum flow rate and the maximum back pressure of the flare barrel 1 are not limited to the limitations of the present embodiment, and are set according to actual needs.

The fuel assembly of the flare system for processing the wet acid flare gas provided by the embodiment can provide fuel for the ignition assembly 2, so that the wet acid flare gas in the flare barrel body 1 is ignited, the added combustion accompanying assembly 4 can outwards flow out the fuel, the combustion efficiency of the wet acid flare gas in the flare barrel body can be increased by the combustion of the fuel, the wet acid flare gas is thoroughly combusted, secondary treatment is not required to be carried out on the wet acid flare gas, and the treatment process of the wet acid flare gas is simplified.

The flare system of handling wet sour flare gas of this embodiment still includes nitrogen gas subassembly (not shown in the figure) and spark arrester (not shown in the figure), and the nitrogen gas subassembly can let in the nitrogen gas from lower to upper flow in the flare barrel 1, and the spark arrester setting is at the export of connecting tube. The nitrogen component can let in nitrogen gas in 1 to the torch barrel, and the nitrogen gas that lets in can increase wet acid torch gas by supreme rigidity of flowing down, has reduced the outside possibility of flowing out of the bottom of wet acid torch gas from lower barrel, and is comparatively friendly to the environment, sets up the spark arrester that can obstruct flame and stretch in to the connecting tube in the export of connecting tube, has promoted this security of handling the torch system of wet acid torch gas.

As shown in fig. 1 and 3, the flare system for processing wet acidic flare gas of the present embodiment further includes a wind-breaking ring 3, where the wind-breaking ring 3 includes a plurality of wind-breaking plates 31 distributed at intervals along the outer periphery of the flare barrel 1, the wind-breaking plates 31 are fixed on the outer side of the flare barrel 1 and extend in the axial direction of the flare barrel 1, and the upper ends of the wind-breaking plates 31 are inclined toward the direction close to the central axis of the flare barrel 1. The air breaking ring 3 which is additionally arranged can reduce the deflection degree of flame, so that the combustion of the torch head is more stable, the service life of the torch head can be prolonged, meanwhile, the flame caused by strong wind is prevented from being rewound or extinguished, the normal combustion of the torch is ensured under various states, the negative pressure is prevented from being generated on the outer wall of the torch head under the strong wind weather, the flame is caused to be turned over, the torch head and the platform facility on the uppermost layer of the tower are burnt out, the stability of the flame of the torch head can be ensured, and the treatment effect of the vented gas is improved.

The flare system for processing wet acid flare gas of the embodiment also comprises a liquid separation tank (not shown in the figure), and the wet acid flare gas enters the flare barrel body 1 through the liquid separation tank and the lower barrel body. The liquid separation tank can separate liquid and gas contained in the wet acid flare gas, so that the wet acid flare gas entering the flare barrel body 1 does not contain liquid drops. Be equipped with pressure sensor and pressure adjustment spare on the knockout drum, pressure sensor is used for detecting the pressure of the wet sour torch gas in the knockout drum, and pressure adjustment spare is configured to the pressure of adjusting wet sour torch gas, and the pressure adjustment spare of this embodiment is pressure regulating valve.

The import department of branch fluid reservoir of this embodiment is equipped with the nitrogen supply house steward (not shown in the figure), and the torch system of handling wet sour torch gas still includes the benefit nitrogen subassembly (not shown in the figure) that can communicate with the nitrogen supply house steward, and the benefit nitrogen subassembly can be from bottom to top through lower barrel to providing nitrogen gas for torch barrel 1. This handle torch system of wet acid torch gas under the high temperature unloading operating mode, the pipe network cooling produces the negative pressure, handles the torch system of wet acid torch gas and has the risk of suck-back air, mends nitrogen component this moment and can supply nitrogen gas to torch barrel 1 to increase the atmospheric pressure in the torch barrel 1, prevent the suck-back air.

As shown in fig. 2, the high altitude igniter 22 of this embodiment includes an igniter inner tube 221 and an igniter outer tube 222, the igniter inner tube 221 is communicated with the fuel assembly, the igniter inner tube 221 is provided with a plurality of first communicating holes distributed in sequence along the axial direction of the torch barrel 1, the igniter outer tube 222 is sleeved on the igniter inner tube 221 and encloses a mixing chamber communicated with the first communicating holes, the igniter outer tube 222 is provided with a plurality of second communicating holes 2220 distributed in sequence along the axial direction of the torch barrel 1, and the second communicating holes 2220 are used for communicating the mixing chamber with the outside.

As shown in FIGS. 1 to 3, the flare system for processing wet acidic flare gas of the embodiment further comprises a fluid seal 5 arranged in the flare barrel 1, wherein the fluid seal 5 can prevent air from flowing backwards into the flare barrel 1, and the fluid seal 5 is made of 304 stainless steel and adopts an inverted-loose tower structure. Specifically, the fluid seal 5 is located the lower part of torch barrel 1 and includes three horn barrels that distribute along the axial interval of torch barrel 1, and the major axis end of every horn barrel all is located the below of its minor axis end and the diameter of three major axis end is the same with the internal diameter of torch barrel 1, and from bottom to top along the axial of torch barrel 1, the diameter of the minor axis end of horn barrel increases in proper order.

As shown in fig. 1 to 3, the flare system for processing wet sour flare gas of the present embodiment further includes a plurality of flame holders 6 disposed on the inner wall of the top of the flare barrel 1, and the flame holders 6 of the present embodiment are inverted U-shaped flame holders. Each flame stabilizing block 6 is provided with a flame stabilizing hole 60 in a penetrating way. The purpose of stable flame piece 6 can play stable flame, when the emission of wet acid torch gas is less than the minimum burning velocity that the torch head allows, guarantees the continuity of flame to a certain extent to guarantee the stability of burning, when the emission of wet acid torch gas reaches the biggest, prevent to lead to the air to scurrie down along the wall of torch barrel 1 because of the coanda effect, and then avoid taking off the emergence of fire phenomenon, guarantee to handle the torch system of wet acid torch gas and all can steady operation under various operating modes. Wherein, the stable flame hole 60, the outlet of the pilot burner 21, the outlet of the high altitude igniter 22 and the outlet of the deflagration tube 23 are on the same horizontal plane, which can further ensure the stability of combustion.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (8)

1. A flare system for processing wet sour flare gas, comprising:

the lower cylinder is communicated with a connecting pipeline for conveying wet acidic flare gas;

a fuel assembly for supplying fuel;

the torch head is arranged at the upper end of the lower barrel and comprises a torch barrel (1) and two ignition components (2), the torch barrel (1) is communicated with the lower barrel, the two ignition assemblies (2) are symmetrically arranged on the outer side of the torch barrel (1), the central axis of a flame outlet of each ignition assembly (2) is intersected with the central axis of the torch barrel (1), each ignition assembly (2) comprises an incandescent lamp (21), a high-altitude igniter (22) and a deflagration tube (23), the pilot burner (21), the high altitude igniter (22) and the deflagration pipe (23) are all communicated with the fuel assembly, the corresponding central angles of the pilot burner (21) and the high altitude igniter (22) on the torch barrel (1) are 20-30 degrees, and the pilot burner (21) and the deflagration pipe (23) of each ignition assembly (2) are distributed along the radial direction of the torch barrel (1);

the combustion accompanying component (4) is fixed on the torch barrel body (1), the combustion accompanying component (4) comprises a first combustion accompanying pipe (41) and a second combustion accompanying pipe (42), the first combustion accompanying pipe (41) extends along the axial direction of the torch barrel body (1), one end of the first combustion accompanying pipe (41) is communicated with the fuel component, the other end of the first combustion accompanying pipe (41) is communicated with the second combustion accompanying pipe (42), the second combustion accompanying pipe (42) is arranged along the periphery of the torch barrel body (1), and the upper end of the second combustion accompanying pipe (42) is provided with a plurality of combustion accompanying holes (420).

2. The flare system of claim 1, wherein the flare system of processing wet acid flare gas further comprises:

the nitrogen component can introduce nitrogen flowing from bottom to top into the torch cylinder (1);

and the flame arrester is arranged at the outlet of the connecting pipeline.

3. The flare system for processing wet sour flare gas of claim 1, further comprising a wind break ring (3), wherein the wind break ring (3) comprises a plurality of wind break plates (31) distributed at intervals along the periphery of the flare barrel (1), the wind break plates (31) are fixed on the outer side of the flare barrel (1) and extend along the axial direction of the flare barrel (1), and the upper ends of the wind break plates (31) are inclined towards the direction close to the central axis of the flare barrel (1).

4. The flare system of claim 1, wherein the flare system of processing wet acid flare gas further comprises a liquid separation tank through which wet acid flare gas enters the flare barrel (1).

5. The wet acid flare gas processing flare system of claim 4, wherein the liquid separation tank is provided with a pressure sensor for detecting the pressure of the wet acid flare gas in the liquid separation tank and a pressure regulating member configured to regulate the pressure of the wet acid flare gas.

6. The flare system for processing the wet acid flare gas as claimed in claim 4, wherein a nitrogen supply main pipe is arranged at the inlet of the liquid separation tank, the flare system for processing the wet acid flare gas further comprises a nitrogen supplement assembly which can be communicated with the nitrogen supply main pipe, and the nitrogen supplement assembly can provide nitrogen to the flare barrel (1) through the lower barrel from bottom to top.

7. The flare system of claim 1, wherein the high altitude igniter (22) comprises:

the igniter inner tube (221) is communicated with the fuel assembly, and a plurality of first communication holes which are distributed in sequence are formed in the igniter inner tube (221) along the axial direction of the torch barrel (1);

the igniter outer pipe (222) is sleeved on the igniter inner pipe (221) and is surrounded into a mixing cavity communicated with the first communicating hole, the igniter outer pipe (222) is provided with a plurality of second communicating holes (2220) which are distributed in sequence along the axial direction of the torch barrel body (1), and the second communicating holes (2220) are used for communicating the mixing cavity with the outside.

8. The flare system for processing the wet acidic flare gas as claimed in claim 1, further comprising a fluid seal (5) arranged in the flare barrel body (1), wherein the fluid seal (5) is positioned at the lower part of the flare barrel body (1) and comprises a plurality of flare barrels distributed at intervals along the axial direction of the flare barrel body (1), the large opening end of each flare barrel is positioned below the small opening end of the flare barrel, and the diameters of the small opening ends of the flare barrels are sequentially increased from bottom to top along the axial direction of the flare barrel body (1).

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