CN113739176A

CN113739176A - Torch system

Info

Publication number: CN113739176A
Application number: CN202111018596.4A
Authority: CN
Inventors: 王逢
Original assignee: Nanjing Nbe Sci & Tech Co ltd
Current assignee: Nanjing Nbe Sci & Tech Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-12-03
Anticipated expiration: 2041-09-01
Also published as: CN113739176B

Abstract

The invention relates to the technical field of torch systems, and discloses a torch system which comprises a fuel assembly and four torch subsystems, wherein each torch subsystem comprises a lower barrel and a torch head, the lower barrel is communicated with a connecting pipeline for conveying torch gas, each torch head comprises a torch barrel and at least two ignition assemblies, the torch gas can enter the torch barrel from the lower barrel, each ignition assembly comprises an incandescent lamp, an overhead igniter and a deflagration pipe, and the incandescent lamp, the overhead igniter and the deflagration pipe are communicated with the fuel assembly. The four torch subsystems of the torch system disclosed by the invention can respectively process hydrogen-rich torch gas, ammonia-rich torch gas, wet acid torch gas and dry acid torch gas, the pilot burner of each torch subsystem is provided with a high-altitude igniter and a deflagration tube, and once the pilot burner is extinguished to cause unstable combustion of the torch gas, the pilot burner can be directly ignited through the high-altitude igniter or the deflagration tube, so that the torch gas in the torch cylinder can be stably combusted.

Description

Torch system

Technical Field

The invention relates to the technical field of torch systems, in particular to a torch system.

Background

In the metallurgy and chemical industry, hydrogen-rich torch gas, ammonia-rich torch gas and acid torch gas are often generated, direct discharge not only pollutes the environment, but also has certain potential safety hazard, so that a torch system is needed to be used for carrying out combustion treatment on the corresponding torch gas, and the treated gas meets the discharge standard. The existing torch system is unreasonable in design and often has the problem that the pilot burner is extinguished, so that the combustion stability of the torch system is poor.

Disclosure of Invention

Based on the above, the present invention aims to provide a flare system, which solves the problem of poor combustion stability of the flare system in the prior art.

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

a torch system comprises a fuel assembly and four torch subsystems, wherein each torch subsystem comprises a lower barrel and a torch head arranged on the lower barrel, the lower barrel is communicated with a connecting pipeline for conveying torch gas, each torch head comprises a torch barrel and at least two ignition assemblies, the torch gas can enter the torch barrel from the lower barrel, the at least two ignition assemblies are uniformly distributed along the periphery 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 tube, the incandescent lamp, the high-altitude igniter and the deflagration tube are communicated with the fuel assembly, and the four torch subsystems are respectively a hydrogen-rich torch subsystem for burning the hydrogen-rich gas, An ammonia-rich flare subsystem for combusting an ammonia-rich flare gas, a wet acid flare subsystem for combusting a wet acid flare gas, and a dry acid flare subsystem for combusting a dry acid flare gas.

As a preferred scheme of the flare system, the hydrogen-rich flare subsystem, the ammonia-rich flare subsystem and the wet-acid flare subsystem further comprise combustion accompanying assemblies fixed on the flare barrel, each combustion accompanying assembly comprises a first combustion accompanying pipe and a second combustion accompanying pipe, the first combustion accompanying pipe extends along the axial direction of the flare 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 flare barrel, and a plurality of combustion accompanying holes are formed in the upper end of the second combustion accompanying pipe.

As a preferred scheme of the flare system, each flare tip further includes 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 in the axial direction of the flare barrel, and the upper ends of the wind breaking plates are inclined toward the direction close to the central axis of the flare barrel.

As a preferred scheme of the torch system, each torch head further comprises a fluid seal arranged in the torch barrel, each fluid seal is located at the lower part of the torch barrel and comprises a plurality of trumpets distributed at intervals along the axial direction of the torch barrel, the large-opening end of each trumpet is located below the small-opening end of the trumpet, and the diameter of the small-opening end of the trumpet is sequentially increased from bottom to top along the axial direction of the torch barrel.

As a preferred scheme of the flare system, each flare subsystem further comprises a liquid separation tank, flare gas enters the flare barrel body through the liquid separation tank and the lower barrel body, the liquid separation tank is provided with a pressure sensor and a pressure adjusting piece, the pressure sensor is used for detecting the pressure of the flare gas in the liquid separation tank, and the pressure adjusting piece is configured to adjust the pressure of the flare gas.

As a preferred scheme of a flare system, a nitrogen supply header pipe is arranged at an inlet of each liquid separation tank, the flare system further comprises a nitrogen component which can be communicated with each nitrogen supply header pipe, the nitrogen provided by the nitrogen component can sequentially flow through the nitrogen supply header pipe, the liquid separation tank and the lower cylinder of each flare subsystem and then enter the flare cylinder, and the nitrogen provided by the nitrogen component can also directly enter the lower part of the lower cylinder to be mixed with flare gas.

As a preferable scheme of the flare system, the hydrogen-rich flare subsystem further comprises a water-sealed tank, the water-sealed tank is located between the liquid separation tank and the lower barrel, the water-sealed tank is configured to automatically replenish water when the liquid level is equal to or less than a first liquid level, and is further configured to stop replenishing water when the liquid level reaches a second liquid level, and the second liquid level is higher than the first liquid level.

As a preferable scheme of the flare system, the ammonia-rich flare subsystem, the wet acid flare subsystem and the dry acid flare subsystem respectively comprise flame arresters, the flame arresters are arranged on the connecting pipelines, and each lower cylinder body corresponds to at least one flame arrester.

As a preferred scheme of the torch system, each torch head is provided with a temperature sensor and an alarm assembly, the temperature sensor is electrically connected with the alarm assembly, and the alarm assembly is configured to alarm when the flame temperature detected by the temperature sensor reaches or is higher than a preset temperature.

As a preferred scheme of the flare system, a flame detector is arranged at the top of each flare tip, and when the flame detector detects that the flame in the flare barrel or the pilot burner is extinguished, one of the deflagration tube and the high altitude igniter can ignite flare gas.

The invention has the beneficial effects that: the four torch subsystems of the torch system disclosed by the invention can respectively process hydrogen-rich torch gas, ammonia-rich torch gas, wet acid torch gas and dry acid torch gas, the pilot burner of each torch subsystem is provided with a high-altitude igniter and a deflagration tube, and once the pilot burner is extinguished to cause unstable combustion of the torch gas, the pilot burner can be directly ignited through the high-altitude igniter or the deflagration tube, so that the torch gas in the torch cylinder can be stably combusted.

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 flow diagram of a flare system provided by a specific embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a schematic diagram of a portion of the hydrogen-rich flare subsystem of the flare system provided in a specific embodiment of the present invention;

FIG. 5 is a cross-sectional view at C-C of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 4 at D-D;

FIG. 7 is a schematic diagram of a portion of the configuration of an ammonia-rich flare subsystem of a flare system provided in an exemplary embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a portion of the configuration of the wet acid flare subsystem of the flare system provided in a specific embodiment of the present invention;

FIG. 9 is a schematic diagram of a portion of the dry acid flare subsystem of the flare system provided in a specific embodiment of the present invention.

In the figure:

100. a hydrogen-rich torch head; 200. an ammonia-rich flare tip; 300. a wet acid torch head; 400. a dry acid torch head;

11. a lower cylinder body; 12. a torch cylinder; 13. an ignition assembly; 131. a beacon light; 132. a high altitude igniter; 1321. an igniter inner tube; 1322. an igniter outer tube; 13220. a second communication hole; 133. a deflagration tube; 14. a burning accompanying component; 141. a first burning accompanying pipe; 142. a second burning accompanying pipe; 1420. burning the hole; 15. a wind breaking ring; 151. a wind breaking plate; 16. a fluid seal; 17. a flame stabilizing block; 170. a flame stabilizing hole;

21. liquid separating tank; 22. a pressure sensor; 23. a pressure regulating member; 24. sealing the tank with water; 25. a flame arrestor; 26. a temperature sensor;

3. a nitrogen supply header pipe;

41. a first liquid level sensor; 42. a water pump; 43. a second liquid level sensor; 44. automatically opening and closing the valve; 51. a gasifier; 52. a fuel gas buffer tank.

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 present embodiment provides a torch system, as shown in fig. 1 to 9, the torch system includes a fuel assembly (not shown in the drawings) and four torch subsystems, each torch subsystem includes a lower barrel 11 and a torch head disposed on the lower barrel 11, the lower barrel 11 communicates with a connecting pipe for delivering torch gas, each torch head includes a torch barrel 12 and at least two ignition assemblies 13, the torch gas can enter the torch barrel 12 from the lower barrel 11, the at least two ignition assemblies 13 are uniformly distributed along the periphery of the torch barrel 12, the central axis of the flame outlet of the ignition assembly 13 intersects the central axis of the torch barrel 12, each ignition assembly 13 includes an incandescent lamp 131, a high altitude igniter 132 and a deflagration tube 133, the incandescent lamp 131, the high altitude igniter 132 and the deflagration tube 133 all communicate with the fuel assembly, that is, the fuel assembly can be the incandescent lamp 131, the high altitude igniter 132 and the deflagration tube 133, The high altitude igniter 132 and the deflagration pipe 133 supply fuel, the four flare subsystems are respectively a hydrogen-rich flare subsystem for burning hydrogen-rich flare gas, an ammonia-rich flare subsystem for burning ammonia-rich flare gas, a wet acid flare subsystem for burning wet acid flare gas and a dry acid flare subsystem for burning dry acid flare gas, and the four flare heads are respectively a hydrogen-rich flare head 100, an ammonia-rich flare head 200, a wet acid flare head 300 and a dry acid flare head 400.

The flare system of the embodiment is suitable for a factory producing nitrogen fertilizer, wherein the hydrogen-rich flare subsystem is used for treating hydrogen-rich flare gas discharged by the gasification device, the conversion device and the low-temperature methanol washing device, the ammonia-rich flare subsystem is used for treating ammonia-rich flare gas discharged by the low-temperature methanol washing device, the freezing station and the ammonia synthesis process, and the wet-acid flare subsystem and the dry-acid flare subsystem are used for treating acid flare gas containing acidic substances such as carbon dioxide, hydrogen sulfide and the like discharged by the conversion device and the low-temperature methanol washing device.

Specifically, as shown in fig. 4, the hydrogen rich torch head 100 includes four ignition assemblies 13, as shown in fig. 7, the ammonia rich torch head 200 includes three ignition assemblies 13, as shown in fig. 8 and 9, and the wet acid torch head 300 and the dry acid torch head 400 each include two ignition assemblies 13. The central angle of the pilot lamp 131 and the overhead igniter 132 of the hydrogen-rich torch head 100 of the present embodiment on the torch body 12 is 10 °, the central angle of the pilot lamp 131 and the overhead igniter 132 of the ammonia-rich torch head on the torch body 12 is 15 °, the central angle of the pilot lamp 131 and the overhead igniter 132 of the wet-acid torch head 300 on the torch body 12 is 25 °, and the central angle of the pilot lamp 131 and the overhead igniter 132 of the dry-acid torch head 400 on the torch body 12 is 30 °. In other embodiments, the central angle of the pair of the pilot light 131 and the overhead igniter 132 of the hydrogen-rich torch head 100 on the torch barrel 12 can be other angles from 8 ° to 12 °, the central angle of the pair of the pilot light 131 and the overhead igniter 132 of the ammonia-rich torch head on the torch barrel 12 can be other angles from 12 ° to 18 °, the central angle of the pair of the pilot light 131 and the overhead igniter 132 of the wet-acid torch head 300 on the torch barrel 12 can be other angles from 20 ° to 30 °, and the central angle of the pair of the pilot light 131 and the overhead igniter 132 of the dry-acid torch head 400 on the torch barrel 12 can be other angles from 25 ° to 35 °, which are selected according to actual needs.

In the figure, the duct indicated by a solid line is indicated by a broken symbol when intersecting the lower cylinder 11. The four torch barrels 12 of the present embodiment are subsonic type barrels, the maximum bearing temperature is 1200 ℃, the upper half of the torch barrel 12 is made of 310 stainless steel, and the lower half is made of 304 stainless steel. The inner diameter of the torch cylinder 12 of the hydrogen-rich torch subsystem in the embodiment is 1200mm, the maximum flow for processing the hydrogen-rich torch gas is 503t/h, and the maximum design backpressure is not higher than 40 kPa; the inner diameter of a torch cylinder body 12 of the ammonia-rich torch subsystem is 900mm, the maximum flow rate for processing the ammonia-rich torch gas is 209.6t/h, and the maximum designed backpressure is not higher than 50 kPa; the inner diameter of a torch cylinder body 12 of the wet acid torch subsystem is 400mm, the maximum flow rate for processing wet acid torch gas is 41.707t/h, and the maximum design backpressure is not higher than 50 kPa; the inner diameter of the torch cylinder 12 of the dry acid torch subsystem is 300mm, the maximum flow rate for processing the dry acid torch gas is 18.03t/h, and the maximum design backpressure is not higher than 30 kPa. The fuel of this embodiment is natural gas or atomizing fluid, and the fuel after the burning can ignite hydrogen-rich torch gas to make the combustible gas in the hydrogen-rich torch gas obtain thoroughly burning, realize the processing to hydrogen-rich torch gas. In other embodiments, the inner diameter, maximum flow rate, and maximum back pressure of the flare barrel 12 of the different flare subsystems are not limited to this definition of the present embodiment, and are set according to actual needs.

The four torch subsystems of the torch system provided by the embodiment can respectively treat hydrogen-rich torch gas, ammonia-rich torch gas, wet acid torch gas and dry acid torch gas, the pilot lamp 131 of each torch subsystem is provided with a high-altitude igniter 132 and a deflagration pipe 133, and once the pilot lamp 131 is extinguished to cause unstable combustion of the torch gas, the pilot lamp 131 can be directly ignited through the high-altitude igniter 132 or the deflagration pipe 133, so that the torch gas in the torch barrel body 12 can be stably combusted.

As shown in fig. 5, the high altitude igniter 132 of this embodiment includes an igniter inner tube 1321 and an igniter outer tube 1322, the igniter inner tube 1321 is communicated with the fuel assembly, the igniter inner tube 1321 is provided with a plurality of first communication holes distributed in sequence along the axial direction of the torch barrel 12, the igniter outer tube 1322 is sleeved on the igniter inner tube 1321 and surrounds the igniter inner tube 1321 and the igniter outer tube 1322 to form a mixing chamber communicated with the first communication holes, the igniter outer tube 1322 is provided with a plurality of second communication holes 13220 distributed in sequence along the axial direction of the torch barrel 12, and the second communication holes 13220 are communicated with the outside and the mixing chamber.

Specifically, the high altitude igniter 132 is ignited by directional inner flame propagation, that is, when the high altitude igniter 132 is ignited, the flame in the high altitude igniter 132 propagates upwards from the bottom, and the flame can ignite the fuel in the pilot lamp 131, and further ignite the torch gas in the torch barrel 12.

Because the calorific values of the hydrogen-rich flare gas and the wet acid flare gas are low, and although the calorific value of the ammonia-rich flare gas is high, the self-ignition point of pure ammonia gas under partial working conditions is high, and ammonia gas molecules are difficult to decompose and cannot be combusted by self oxidation heat, as shown in fig. 4, 7 and 8, the hydrogen-rich flare subsystem, the ammonia-rich flare subsystem and the wet acid flare subsystem further comprise combustion tracing assemblies 14 fixed on the flare cylinder 12, each combustion tracing assembly 14 comprises a first combustion tracing pipe 141 and a second combustion tracing pipe 142, each first combustion tracing pipe 141 extends along the axial direction of the flare cylinder 12, one end of each first combustion tracing pipe 141 is communicated with the fuel assembly, the other end of each first combustion tracing pipe 141 is communicated with each second combustion tracing pipe 142, each second combustion tracing pipe 142 is arranged along the periphery of the flare cylinder 12, and a plurality of combustion tracing holes 1420 are arranged at the upper ends of the second combustion tracing pipes 142. The flow of the fuel in the combustion accompanying assembly 14 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 14 can be properly reduced; if the combustion conditions are poor, the flow of fuel discharged through the co-combustion assembly 14 may be increased somewhat as appropriate so that the hydrogen-rich flare gas is fully combusted.

As shown in fig. 4 and fig. 6 to 9, each torch head further includes a wind breaking ring 15, each wind breaking ring 15 includes a plurality of wind breaking plates 151 spaced along the outer periphery of the torch barrel 12, the wind breaking plates 151 are fixed to the outer side of the torch barrel 12 and extend in the axial direction of the torch barrel 12, and the upper ends of the wind breaking plates 151 are inclined toward the direction close to the central axis of the torch barrel 12. The broken wind circle 15 that adds not only can reduce the skew degree of flame, make the burning of rich hydrogen torch head 100 more stable, thereby can prolong the life of rich hydrogen torch head 100, and simultaneously, can also avoid the flame that the strong wind caused to rewind or extinguish, guarantee that the torch is normal combustion under various states, prevent to produce the negative pressure at torch head outer wall under the strong wind weather, arouse that the flame from reversing over, burn out torch head and pylon superiors' platform facility, in addition, can also guarantee the stability of torch head flame, improve the treatment effect of unloading gas.

As shown in fig. 1, fig. 2, and fig. 4 to fig. 9, each torch head of the present embodiment further includes a fluid seal 16 disposed in the torch barrel 12, the fluid seal 16 is made of 304 stainless steel, and adopts an inverted-loose-cone structure, each fluid seal 16 is disposed at the lower portion of the torch barrel 12 and includes a plurality of trumpets distributed at intervals along the axial direction of the torch barrel 12, the large-opening end of each trumpet is disposed below the small-opening end thereof, and the diameter of the small-opening end of the trumpet increases sequentially from bottom to top along the axial direction of the torch barrel 12.

As shown in fig. 3, each flare subsystem of this embodiment further includes a liquid separation tank 21, the flare gas enters the flare barrel 12 through the liquid separation tank 21 and the lower barrel 11, the liquid separation tank 21 can separate liquid and gas contained in the flare gas, so that the flare gas entering the lower barrel 11 does not contain liquid droplets, the liquid separation tank 21 is provided with a pressure sensor 22 and a pressure adjusting member 23, the pressure sensor 22 is used for detecting the pressure of the flare gas in the liquid separation tank 21, the pressure adjusting member 23 is configured to adjust the pressure of the flare gas, and the pressure adjusting member 23 of this embodiment is a pressure adjusting valve.

Further, as shown in fig. 3, a first liquid level sensor 41 is disposed in the liquid separation tank 21, and the first liquid level sensor 41 is configured to detect a liquid level in the liquid separation tank 21 in real time. In order to pump out the liquid in the liquid separation tank 21 in time, as shown in fig. 3, each liquid separation tank 21 is provided with two water pumps 42, one water pump 42 is in a running state when the flare system is in normal operation, and the other water pump 42 is standby, so that once one water pump 42 is damaged, the other water pump 42 can be started, and the flare system does not need to be stopped.

As shown in fig. 3, the import department of every minute fluid reservoir 21 all is equipped with the confession nitrogen house steward 3, the torch system still includes the nitrogen gas subassembly that can communicate with every confession nitrogen house steward 3, the nitrogen gas that the nitrogen gas subassembly provided can flow through the confession nitrogen house steward 3 of every torch subsystem in proper order, branch fluid reservoir 21 and barrel 11 back entering torch barrel 12 down, this torch subsystem is under high temperature unloading operating mode, the pipe network cooling produces the negative pressure, the torch subsystem has the risk of suck-back air, the nitrogen supplement subassembly can be to replenishing nitrogen gas in the torch barrel 12 this moment, thereby increase the atmospheric pressure in the torch barrel 12, prevent the suck-back air, the nitrogen gas that the nitrogen gas subassembly provided can also directly get into the lower part of barrel 11 down and mix with the torch gas, prevent the torch gas from flowing rigidity downwards to flow backwards, guarantee the torch gas from lower to supreme.

As shown in fig. 3, the hydrogen-rich torch subsystem of the present embodiment further includes a water-sealed tank 24, the water-sealed tank 24 is located between the liquid separation tank 21 and the lower cylinder 11, the water-sealed tank 24 is configured to automatically replenish water when the liquid level is equal to or less than the first liquid level, and is further configured to stop replenishing water when the liquid level reaches a second liquid level, wherein the second liquid level is higher than the first liquid level, and the water-sealed tank 24 can play a role in preventing flame from spreading to the liquid separation tank 21. In order to prevent the water-sealed tank 24 from freezing due to the fact that the external environment temperature is too low, the outside of the water-sealed tank 24 is heated by steam and is insulated by an insulating layer, and therefore the phenomenon that liquid in the water-sealed tank 24 freezes is avoided. Specifically, as shown in fig. 3, a second liquid level sensor 43 and an automatic switch valve 44 are arranged in the water-sealed tank 24, and once the liquid level in the water-sealed tank 24 detected by the second liquid level sensor 43 is equal to or less than the first liquid level, the automatic switch valve 44 is opened at this time, the water level in the water-sealed tank 24 rises until the liquid level in the water-sealed tank 24 detected by the second liquid level sensor 43 reaches the second liquid level, the automatic switch valve 44 is closed, and the water level in the water-sealed tank 24 does not rise any more.

As shown in fig. 1, the ammonia-rich flare sub-system, the wet acid flare sub-system and the dry acid flare sub-system of the present embodiment each include a flame arrester 25, the flame arresters 25 are disposed on the connecting pipes, and each lower cylinder 11 corresponds to at least one flame arrester 25. Specifically, the lower barrel 11 of rich ammonia torch subsystem, wet acid torch subsystem and dry acid torch subsystem corresponds the setting with two spark arresters 25 respectively, and a spark arrester 25 plays in the actual operation, and when a spark arrester 25 broke down, another spark arrester 25 was used to guarantee that the torch subsystem can normal operating.

As shown in FIGS. 4 to 9, each torch subsystem of the embodiment further comprises a plurality of flame-stabilizing blocks 17 arranged on the inner wall of the top of the torch barrel 12, and each flame-stabilizing block 17 is provided with a flame-stabilizing hole 170 in a penetrating manner. The flame stabilizing block 17 can stabilize flame, and when the discharge amount of flare gas is less than the minimum combustion speed allowed by a flare tip, the continuity of flame is ensured to a certain extent, so that the combustion stability is ensured, and when the discharge amount of flare gas reaches the maximum, air channeling along the wall surface of the flare barrel 12 due to the wall attachment effect is prevented, thereby avoiding the occurrence of a fire-out phenomenon, and ensuring that a flare subsystem can stably operate under various working conditions. Wherein, the flame stabilizing hole 170, the outlet of the pilot burner 131, the outlet of the high altitude igniter 132 and the outlet of the deflagration pipe 133 are on the same horizontal plane, which can further ensure the stability of combustion. Further, the flame holding blocks 17 in the hydrogen-rich torch subsystem and the ammonia-rich torch subsystem are S-shaped flame holding blocks, and the flame holding blocks 17 in the wet acid torch subsystem and the dry acid torch subsystem are inverted U-shaped flame holding blocks.

As shown in FIG. 2, each torch head is provided with a temperature sensor 26 and an alarm assembly (not shown), wherein the temperature sensor 26 is electrically connected with the alarm assembly, and the alarm assembly is configured to alarm when the flame temperature detected by the temperature sensor 26 reaches or exceeds a preset temperature.

The top of each torch head is provided with a flame detector (not shown in the figures), and when the flame detector detects that the flame in the torch barrel 12 or the pilot burner 131 is extinguished, one of the deflagration tube 133 and the high-altitude igniter 132 can ignite the torch gas.

Preferably, the torch system of the present embodiment further includes a control module (not shown in the drawings), the control module is electrically connected to the flame detector, and once the control module receives a signal that the flame detected by the flame detection module is extinguished, the control module controls the high altitude igniter 132 to perform an ignition action, so as to ignite the pilot burner 131 or the torch gas. The control module of this embodiment can be an solitary singlechip, also can be that the polylith singlechip that distributes constitutes, can run control program in the singlechip, and then control flame detector realizes its function.

Preferably, the torch system further comprises a control room ignition button (not shown in the figure) and a field ignition switch (not shown in the figure), the control room ignition button is arranged on a computer of the control room, the field ignition switch is arranged at a torch gas treatment field, once the flame in the torch barrel 12 or the incandescent lamp 131 is extinguished, the control room ignition button is clicked, manual ignition of the high altitude igniter 132 can be realized, or the field ignition switch is pressed on the field, manual ignition of the deflagration tube 133 can be realized, finally, the fuel in the incandescent lamp 131 is combusted, and further, the torch gas in the torch barrel 12 is combusted.

Further, as shown in fig. 1, meter air, natural gas, oil, low-pressure steam, nitrogen, hydrogen-rich flare gas, ammonia-rich flare gas, wet acid flare gas, and dry acid wet flare gas are introduced into the flare system of this embodiment. Specifically, instrument air enters a battery compartment and is divided into two parts after passing through a battery compartment main valve, one part is connected into a ground deflagration system to provide a combustion assisting gas source for closed deflagration ignition, and the other part provides a gas source for all pneumatic valves. The oil is gasified by the gasifier 51 and then sent to the fuel gas buffer tank 52, and the natural gas is directly sent to the fuel gas buffer tank 52. The fuel in the fuel gas buffer tank 52 is divided into four parts, one part of the fuel is connected to the ground deflagration system to provide fuel for igniting the deflagration tubes 133, one part of the fuel provides a combustion gas source for all the pilot burner 131, one part of the fuel provides an ignition gas source for all the high altitude igniters 132, and one part of the fuel provides combustion-supporting or blending fuel for all the flare gas in the flare barrel 12. The steam enters the boundary area and is divided into two parts after passing through the main valve of the boundary area, one part provides a heat source for the gasifier 51, so that the oil is gasified into vaporous oil, and the other part provides a heat tracing heat source for the liquid separation tank 21, the water seal tank 24, the water system pipeline and the jacketed pipe. The nitrogen gas gets into and is rich hydrogen torch subsystem respectively behind district's total valve in the boundary, rich ammonia torch subsystem, wet acid torch subsystem, the torch gas in the lower barrel 11 of dry acid torch subsystem mixes, increase the flow rigidity of torch gas, nitrogen gas can also flow through the confession nitrogen house steward 3 and branch fluid reservoir 21 of every torch subsystem in proper order and enter into torch barrel 12 behind barrel 11 down, under the torch subsystem is at high temperature unloading operating mode, can supplement nitrogen gas in the torch barrel 12, can increase the atmospheric pressure in the torch barrel 12, prevent the suck-back air. The water is divided into two parts after entering the boundary area, one part provides sealing water for the water seal tank 24 of the hydrogen-rich torch subsystem, and the other part is connected into the steam condensate pipe mixer to eliminate the vibration of the steam condensate pipe.

As shown in fig. 1, the flare system of the present embodiment flows out a hydrogen-containing condensate, an ammonia-containing condensate, a wet acid gas condensate, a dry acid gas condensate and a steam condensate, wherein the hydrogen-containing condensate is a liquid extracted from the liquid separation tank 21 of the hydrogen-rich flare sub-system, the ammonia-containing condensate is a liquid extracted from the liquid separation tank 21 of the ammonia-rich flare sub-system, the wet acid gas condensate is a liquid extracted from the liquid separation tank 21 of the wet acid flare sub-system, the dry acid gas condensate is a liquid extracted from the liquid separation tank 21 of the dry acid flare wet sub-system, and the steam condensate is a liquid after steam liquefaction.

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 invention. 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

1. A torch system is characterized by comprising a fuel assembly and four torch subsystems, wherein each torch subsystem comprises a lower barrel (11) and a torch head arranged on the lower barrel (11), the lower barrel (11) is communicated with a connecting pipeline for conveying torch gas, each torch head comprises a torch barrel (12) and at least two ignition assemblies (13), the torch gas can enter the torch barrel (12) from the lower barrel (11), the at least two ignition assemblies (13) are uniformly distributed along the periphery of the torch barrel (12), the central axis of a flame outlet of each ignition assembly (13) is intersected with the central axis of the torch barrel (12), each ignition assembly (13) comprises an incandescent lamp (131), an overhead igniter (132) and a deflagration pipe (133), the incandescent lamp (131) and the deflagration pipe (133), The high altitude igniter (132) and the deflagration pipe (133) are communicated with the fuel assembly, and the four torch subsystems are respectively a hydrogen-rich torch subsystem for combusting hydrogen-rich torch gas, an ammonia-rich torch subsystem for combusting ammonia-rich torch gas, a wet acid torch subsystem for combusting wet acid torch gas and a dry acid torch subsystem for combusting dry acid torch gas.

2. The flare system of claim 1, wherein the hydrogen-rich flare subsystem, the ammonia-rich flare subsystem, and the wet acid flare subsystem each further comprise a burning accompanying assembly (14) fixed on the flare barrel (12), the burning accompanying assembly (14) comprises a first burning accompanying pipe (141) and a second burning accompanying pipe (142), the first burning accompanying pipe (141) extends along the axial direction of the flare barrel (12), one end of the first burning accompanying pipe (141) is communicated with the fuel assembly, the other end of the first burning accompanying pipe (141) is communicated with the second burning accompanying pipe (142), the second burning accompanying pipe (142) is arranged along the periphery of the flare barrel (12), and the upper end of the second burning accompanying pipe (142) is provided with a plurality of burning accompanying holes (1420).

3. The flare system of claim 1, wherein each flare tip further comprises a wind-break ring (15), each wind-break ring (15) comprises a plurality of wind-break plates (151) spaced along the outer circumference of the flare barrel (12), the wind-break plates (151) are fixed to the outer side of the flare barrel (12) and extend in the axial direction of the flare barrel (12), and the upper ends of the wind-break plates (151) are inclined toward a direction close to the central axis of the flare barrel (12).

4. The torch system as recited in claim 1, wherein each of the torch heads further comprises a fluid seal (16) disposed in the torch body (12), each of the fluid seals (16) is located at a lower portion of the torch body (12) and comprises a plurality of horns spaced apart along an axial direction of the torch body (12), a large-mouth end of each of the horns is located below a small-mouth end thereof, and diameters of the small-mouth ends of the horns increase sequentially from bottom to top along the axial direction of the torch body (12).

5. The flare system of claim 1, wherein each flare subsystem further comprises a liquid separation tank (21), flare gas enters the flare barrel (12) through the liquid separation tank (21) and the lower barrel (11), a pressure sensor (22) and a pressure regulator (23) are arranged on the liquid separation tank (21), the pressure sensor (22) is used for detecting the pressure of the flare gas in the liquid separation tank (21), and the pressure regulator (23) is configured to regulate the pressure of the flare gas.

6. The flare system of claim 5, wherein a nitrogen supply header pipe (3) is arranged at the inlet of each liquid separation tank (21), the flare system further comprises a nitrogen assembly which can be communicated with each nitrogen supply header pipe (3), the nitrogen provided by the nitrogen assembly can sequentially flow through the nitrogen supply header pipe (3) and the liquid separation tank (21) of each flare subsystem and the lower cylinder (11) and then enter the flare cylinder (12), and the nitrogen provided by the nitrogen assembly can also directly enter the lower part of the lower cylinder (11) to be mixed with the flare gas.

7. The flare system of claim 5, wherein the hydrogen-rich flare subsystem further comprises a water-sealed tank (24), the water-sealed tank (24) being located between the liquid separation tank (21) and the lower barrel (11), the water-sealed tank (24) being configured to automatically replenish water when a liquid level is equal to or less than a first liquid level, and further being configured to stop replenishing water when the liquid level reaches a second liquid level, the second liquid level being higher than the first liquid level.

8. The flare system of claim 1, wherein the ammonia-rich flare subsystem, the wet acid flare subsystem, and the dry acid flare subsystem each comprise a flame arrestor (25), the flame arrestor (25) disposed on the connecting conduit, each of the lower barrels (11) corresponding to at least one of the flame arrestors (25).

9. The torch system of claim 1, wherein each of the torch heads has a temperature sensor (26) and an alarm assembly, the temperature sensor (26) being electrically connected to the alarm assembly, the alarm assembly being configured to alarm when the temperature of the flame detected by the temperature sensor (26) reaches or exceeds a predetermined temperature.

10. The flare system of claim 1, wherein a flame detector is provided at the top of each flare tip, wherein one of the detonation tube (133) and the high altitude igniter (132) is capable of igniting flare gas when the flame detector detects that the flame within the flare barrel (12) or the pilot light (131) is extinguished.