CN113739176B

CN113739176B - Torch system

Info

Publication number: CN113739176B
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: 2024-02-02
Anticipated expiration: 2041-09-01
Also published as: CN113739176A

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 cylinder body and a torch head, the lower cylinder body is communicated with a connecting pipeline for conveying torch gas, each torch head comprises a torch cylinder body and at least two ignition assemblies, the torch gas can enter the torch cylinder body from the lower cylinder body, each ignition assembly comprises a pilot lamp, an overhead igniter and a deflagration tube, and the pilot lamp, the overhead igniter and the deflagration tube are all communicated with the fuel assembly. The four flare subsystems of the flare system disclosed by the invention can respectively treat hydrogen-rich flare gas, ammonia-rich flare gas, wet acid flare gas and dry acid flare gas, and the pilot burner of each flare subsystem is provided with a high-altitude igniter and a deflagration tube, so that once the pilot burner is extinguished to cause unstable combustion of the flare gas, the pilot burner can be directly ignited through the high-altitude igniter or the deflagration tube, and the flare gas in the flare barrel 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 metallurgical and chemical industries, hydrogen-rich flare gas, ammonia-rich flare gas and acid flare gas are often generated, and are directly discharged, so that the environment is polluted, and certain potential safety hazards exist, so that the corresponding flare gas needs to be combusted by using a flare system, and the treated gas meets the discharge standard. The existing torch system is unreasonable in design, and the problem that a pilot lamp is extinguished often exists, so that the combustion stability of the torch system is poor.

Disclosure of Invention

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

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

the utility model provides a torch system, includes fuel assembly and four torch subsystems, every the torch subsystem all includes a lower barrel and one sets up torch head on the lower barrel, lower barrel with carry the connecting tube intercommunication of torch gas, every the torch head all includes the torch barrel and two at least ignition module, the torch gas can follow lower barrel gets into the torch barrel, at least two the ignition module is followed the periphery evenly distributed of torch barrel just the central axis of the flame export of ignition module with the central axis of torch barrel intersects, every the ignition module all includes pilot lamp, high altitude igniter and detonation tube, the pilot lamp the high altitude igniter with the detonation tube all with fuel assembly intercommunication, four the torch subsystem is respectively for the hydrogen-rich torch subsystem of burning hydrogen-rich torch gas, the ammonia-rich torch subsystem of burning ammonia-rich torch gas, the wet acid nature flare subsystem of burning and the dry acid nature flare gas of burning.

As a preferred scheme of torch system, the hydrogen-rich torch subsystem, the ammonia-rich torch subsystem and the wet acid torch subsystem all still include the companion of fixing on the torch barrel and burn the subassembly, companion burn the subassembly and include first companion burn the pipe and the second companion burn the pipe, first companion burn the pipe along the axial extension of torch barrel, first companion burn one end of pipe with fuel assembly intercommunication, first companion burn the other end of pipe with second companion burn the pipe intercommunication, the second companion burn the pipe along the periphery setting of torch barrel, the upper end of second companion burn the pipe and be equipped with a plurality of companion burn the hole.

As a preferable scheme of the torch system, each torch head further comprises a wind breaking ring, each wind breaking ring comprises a plurality of wind breaking plates distributed at intervals along the periphery of the torch cylinder, the wind breaking plates are fixed on the outer side of the torch cylinder and extend along the axial direction of the torch cylinder, and the upper ends of the wind breaking plates incline towards the direction close to the central axis of the torch cylinder.

As a preferred scheme of torch system, every the torch head is still including setting up the fluid seal in the torch barrel, every the fluid seal all is located the lower part of torch barrel just includes a plurality of edge the horn section of thick bamboo of the axial interval distribution of torch barrel, every the big mouth end of horn section of thick bamboo all is located the below of its little mouth end, follows the axial of torch barrel is from bottom to top, the diameter of the little mouth end of horn section of thick bamboo increases in proper order.

As a preferable scheme of the torch system, each torch subsystem further comprises a liquid separating tank, the torch gas enters the torch cylinder body through the liquid separating tank and the lower cylinder body, a pressure sensor and a pressure adjusting piece are arranged on the liquid separating tank, the pressure sensor is used for detecting the pressure of the torch gas in the liquid separating tank, and the pressure adjusting piece is configured to adjust the pressure of the torch gas.

As a preferred scheme of torch system, every divide the import department of fluid reservoir all to be equipped with and supply the nitrogen house steward, the torch system still include can with every supply the nitrogen gas subassembly of nitrogen house steward intercommunication, the nitrogen gas that the nitrogen gas subassembly provided can flow through in proper order every the torch subsystem supply the nitrogen house steward with divide the fluid reservoir and get into after the barrel down the torch barrel, the nitrogen gas that the nitrogen gas subassembly provided can also directly get into the lower part of barrel with the torch gas mixes.

As a preferred scheme of the torch system, the hydrogen-rich torch subsystem further comprises a water sealed tank, wherein the water sealed tank is positioned between the liquid separating tank and the lower cylinder, the water sealed tank is configured to automatically supplement water when the liquid level is equal to or smaller than a first liquid level, and is further configured to stop supplementing water when the liquid level reaches a second liquid level, and the second liquid level is higher than the first liquid level.

As a preferred scheme of torch system, rich ammonia torch subsystem, wet acid torch subsystem reaches dry acid torch subsystem all includes the flame arrester, the flame arrester sets up on the connecting tube, every down the barrel all corresponds at least one the flame arrester.

As a preferable 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 preferable scheme of the torch system, the top of each torch head is provided with a flame detector, and when the flame detector detects that the flame in the torch cylinder body or the pilot burner is extinguished, one of the deflagration tube and the high-altitude igniter can ignite the torch gas.

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

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a flow diagram of a flare system provided by an 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 a flare system provided in an embodiment of the present invention;

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

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

FIG. 7 is a schematic illustration of a portion of the ammonia rich flare subsystem of a flare system provided in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a portion of the wet and acidic flare subsystem of a flare system provided in an embodiment of the present invention;

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

In the figure:

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

11. a lower cylinder; 12. a torch barrel; 13. an ignition assembly; 131. a pilot lamp; 132. a high altitude igniter; 1321. an igniter inner tube; 1322. an igniter outer tube; 13220. a second communication hole; 133. a detonation tube; 14. a burn-accompanying assembly; 141. a first burn tube; 142. a second burning-accompanying tube; 1420. hole burning is carried out; 15. a wind breaking ring; 151. breaking wind plates; 16. a fluid seal; 17. flame stabilizing blocks; 170. flame stabilizing holes;

21. a liquid separating tank; 22. a pressure sensor; 23. a pressure adjusting member; 24. a water sealed tank; 25. a flame arrester; 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 a valve; 51. a gasifier; 52. a fuel gas buffer tank.

Detailed Description

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, 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 some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

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

The flare system of the embodiment is suitable for a factory for producing nitrogen fertilizer, wherein the hydrogen-rich flare subsystem is used for treating hydrogen-rich flare gas discharged by a gasification device, a conversion device and a 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, a refrigeration station and an 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 and hydrogen sulfide discharged by the conversion device and the low-temperature methanol washing device.

Specifically, as shown in FIG. 4, the hydrogen-rich flare tip 100 includes four ignition assemblies 13, as shown in FIG. 7, the ammonia-rich flare tip 200 includes three ignition assemblies 13, as shown in FIGS. 8 and 9, and the wet acid flare tip 300 and the dry acid flare tip 400 each include two ignition assemblies 13. The central angle of the pilot lamp 131 and the high altitude igniter 132 of the hydrogen-rich flare tip 100 of this embodiment on the flare barrel 12 is 10 °, the central angle of the pilot lamp 131 and the high altitude igniter 132 of the ammonia-rich flare tip on the flare barrel 12 is 15 °, the central angle of the pilot lamp 131 and the high altitude igniter 132 of the wet acid flare tip 300 on the flare barrel 12 is 25 °, and the central angle of the pilot lamp 131 and the high altitude igniter 132 of the dry acid flare tip 400 on the flare barrel 12 is 30 °. In other embodiments, the central angle of the long-open lamp 131 and the high-altitude igniter 132 of the hydrogen-rich flare tip 100 on the flare barrel 12 may be other angles in 8 ° -12 °, the corresponding central angle of the long-open lamp 131 and the high-altitude igniter 132 of the ammonia-rich flare tip on the flare barrel 12 may be other angles in 12 ° -18 °, the corresponding central angle of the long-open lamp 131 and the high-altitude igniter 132 of the wet acid flare tip 300 on the flare barrel 12 may be other angles in 20 ° -30 °, and the corresponding central angle of the long-open lamp 131 and the high-altitude igniter 132 of the dry acid flare tip 400 on the flare barrel 12 may be other angles in 25 ° -35 °, which are selected according to practical needs.

Note that, the pipe indicated by the solid line in the drawing is indicated by a broken symbol when intersecting the lower cylinder 11. The four torch barrels 12 in this embodiment are all subsonic barrels, the highest bearing temperature is 1200 ℃, the upper half part of the torch barrel 12 is made of 310 stainless steel, and the lower half part is made of 304 stainless steel. The inner diameter of the torch barrel 12 of the hydrogen-rich torch subsystem is 1200mm, the maximum flow rate of the treated hydrogen-rich torch gas is 503t/h, and the maximum design back pressure is not higher than 40kPa; the inner diameter of the torch barrel 12 of the ammonia-rich torch subsystem is 900mm, the maximum flow rate of the treated ammonia-rich torch gas is 209.6t/h, and the maximum design back pressure is not higher than 50kPa; the inner diameter of the torch cylinder 12 of the wet acid torch subsystem is 400mm, the maximum flow rate of the treated wet acid torch gas is 41.707t/h, and the maximum design back pressure is not higher than 50kPa; the internal diameter of the flare barrel 12 of the dry acid flare subsystem was 300mm, the maximum flow rate of the treated dry acid flare gas was 18.03t/h, and the maximum design backpressure was no higher than 30kPa. The fuel of the embodiment is natural gas or atomized oil, and the burnt fuel can ignite the hydrogen-rich flare gas, so that the combustible gas in the hydrogen-rich flare gas is thoroughly burnt, and the hydrogen-rich flare gas is treated. In other embodiments, the internal 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 specifically set according to actual needs.

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

As shown in fig. 5, the high altitude igniter 132 of the present embodiment includes an inner igniter tube 1321 and an outer igniter tube 1322, the inner igniter tube 1321 is communicated with the fuel assembly, the inner igniter tube 1321 is provided with a plurality of first communication holes distributed in sequence along the axial direction of the torch barrel 12, the outer igniter tube 1322 is sleeved on the inner igniter tube 1321 and encloses a mixing cavity communicated with the first communication holes, the outer igniter 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 cavity.

Specifically, the high-altitude igniter 132 ignites in a flame-transferred-in-direction ignition manner, that is, when the high-altitude igniter 132 ignites, the flame in the high-altitude igniter 132 propagates upward from the bottom, and the flame can ignite the fuel in the pilot burner 131, thereby igniting the flare gas in the flare cylinder 12.

Because the heating values of the hydrogen-rich flare gas and the wet acid flare gas are lower, but the heating value of the ammonia-rich flare gas is higher, but the self-ignition point of pure ammonia gas is higher under partial working conditions, and ammonia gas molecules are difficult to decompose and cannot sustain combustion 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 all further comprise a combustion accompanying component 14 fixed on the flare barrel 12, the combustion accompanying component 14 comprises a first combustion accompanying pipe 141 and a second combustion accompanying pipe 142, the first combustion accompanying pipe 141 extends along the axial direction of the flare barrel 12, one end of the first combustion accompanying pipe 141 is communicated with the fuel component, the other end of the first combustion accompanying pipe 141 is communicated with the second combustion accompanying pipe 142, the second combustion accompanying pipe 142 is arranged along the periphery of the flare barrel 12, and the upper end of the second combustion accompanying pipe 142 is provided with a plurality of combustion accompanying holes 1420. The flow rate of the fuel in the combustion accompanying assembly 14 is controlled according to the actual combustion condition, and if the combustion condition is good, the flow rate of the fuel discharged through the combustion accompanying assembly 14 can be properly reduced; if the combustion conditions are poor, the flow of fuel exiting via the companion combustion assembly 14 may be increased somewhat appropriately so that the hydrogen-rich flare gas is fully combusted.

As shown in fig. 4 and fig. 6 to 9, each flare tip further includes a wind-breaking ring 15, each wind-breaking ring 15 includes a plurality of wind-breaking plates 151 distributed at intervals along the periphery of the flare barrel 12, the wind-breaking plates 151 are fixed at the outer side of the flare barrel 12 and extend along the axial direction of the flare barrel 12, and the upper ends of the wind-breaking plates 151 are inclined toward the direction close to the central axis of the flare barrel 12. The added wind breaking ring 15 not only can reduce the deflection degree of flame, so that the combustion of the hydrogen-rich flare head 100 is more stable, thereby prolonging the service life of the hydrogen-rich flare head 100, simultaneously, the flame rewinding or extinguishing caused by high wind can be avoided, the normal combustion of the flare in various states is ensured, the negative pressure generated on the outer wall of the flare head in the high wind weather is prevented, the flame is caused to overturn, the flare head and the uppermost-layer platform facility of the tower are burnt out, in addition, the flame stability of the flare head can be ensured, and the treatment effect of the discharged air is improved.

As shown in fig. 1, fig. 2 and fig. 4 to fig. 9, each flare tip of the present embodiment further includes a fluid seal 16 disposed in the flare barrel 12, the material of the fluid seal 16 is 304 stainless steel, and the inverted cone structure is adopted, each fluid seal 16 is disposed at the lower portion of the flare barrel 12 and includes a plurality of flare barrels distributed at intervals along the axial direction of the flare barrel 12, the large mouth end of each flare barrel is disposed below the small mouth end thereof, and the diameter of the small mouth end of the flare barrel increases sequentially from bottom to top along the axial direction of the flare barrel 12.

As shown in fig. 3, each flare subsystem of the present 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 the liquid and the gas contained in the flare gas so that the flare gas entering the lower barrel 11 does not contain liquid drops, the liquid separation tank 21 is provided with a pressure sensor 22 and a pressure regulating member 23, the pressure sensor 22 is used for detecting the pressure of the flare gas in the liquid separation tank 21, the pressure regulating member 23 is configured to regulate the pressure of the flare gas, and the pressure regulating member 23 of the present embodiment is a pressure regulating valve.

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

As shown in FIG. 3, the inlet of each liquid separating tank 21 is provided with a nitrogen supplying header pipe 3, the flare system further comprises a nitrogen component which can be communicated with each nitrogen supplying header pipe 3, nitrogen provided by the nitrogen component can sequentially flow through the nitrogen supplying header pipe 3 of each flare subsystem, the liquid separating tanks 21 and the lower barrel 11 and then enter the flare barrel 12, the flare subsystem is cooled under the high Wen Fangkong working condition to generate negative pressure, the flare subsystem has the risk of air reverse suction, the nitrogen supplementing component can supplement nitrogen into the flare barrel 12 at this moment, so that the air pressure in the flare barrel 12 is increased, the air reverse suction is prevented, the nitrogen provided by the nitrogen component can also directly enter the lower part of the lower barrel 11 to be mixed with the flare gas, the downward backflow of the flare gas is prevented, and the flow rigidity of the flare gas from bottom to top is ensured.

As shown in fig. 3, the hydrogen-rich flare subsystem of the present embodiment further includes a water sealed tank 24, where the water sealed tank 24 is located between the liquid separation tank 21 and the lower cylinder 11, and 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, where 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 too low temperature of the external environment, the outside of the water sealed tank 24 is heated by steam and is insulated by an insulating layer, so that the phenomenon that the liquid in the water sealed tank 24 is frozen is avoided. Specifically, as shown in fig. 3, a second liquid level sensor 43 and an automatic switch valve 44 are provided in the water-sealed tank 24, 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, 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 no longer rises.

As shown in fig. 1, the ammonia-rich flare subsystem, the wet acid flare subsystem and the dry acid flare subsystem 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 cylinder 11 of the ammonia-rich flare subsystem, the wet acid flare subsystem and the dry acid flare subsystem are respectively arranged corresponding to the two flame arresters 25, one flame arrestor 25 acts during actual operation, and when one flame arrestor 25 fails, the other flame arrestor 25 is used to ensure that the flare subsystem can normally operate.

As shown in fig. 4 to 9, each of the torch subsystems of the present embodiment further includes a plurality of flame stabilizing blocks 17 disposed on an inner wall of the top of the torch barrel 12, and each of the flame stabilizing blocks 17 is provided with a flame stabilizing hole 170 therethrough. The flame stabilizing block 17 can play a role in stabilizing flame, when the discharge amount of the flare gas is smaller than the minimum combustion speed allowed by the flare head, the continuity of flame is ensured to a certain extent, so that the stability of combustion is ensured, when the discharge amount of the flare gas reaches the maximum, the air is prevented from flowing downwards along the wall surface of the ignition torch cylinder 12 due to the wall attaching effect, the occurrence of the fire removing phenomenon is further avoided, and the stable operation of the flare subsystem under various working conditions is ensured. Wherein, the flame stabilizing hole 170, the outlet of the pilot lamp 131, the outlet of the high altitude igniter 132 and the outlet of the deflagration tube 133 are on the same horizontal plane, which can further ensure the stability of combustion. Further, the flame stabilizing blocks 17 in the hydrogen-rich torch subsystem and the ammonia-rich torch subsystem are S-shaped flame stabilizing blocks, and the flame stabilizing blocks 17 in the wet acid torch subsystem and the dry acid torch subsystem are inverted U-shaped flame stabilizing blocks.

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

The top of each flare tip is provided with a flame detector (not shown) that, when detecting the extinction of a flame within the flare barrel 12 or pilot burner 131, one of the detonation tube 133 and the overhead igniter 132 is capable of igniting the flare gas.

Preferably, the flare system of this embodiment further includes a control module (not shown in the figure), which is electrically connected to the flame detector, and once the control module receives the signal of extinguishing the flame detected by the flame detection module, the control module controls the overhead igniter 132 to perform the ignition action, so as to ignite the pilot burner 131 or the flare gas. The control module of the embodiment can be a single-chip microcomputer or a plurality of distributed single-chip microcomputers, and a control program can be run in the single-chip microcomputer to control the flame detector to realize the functions of the flame detector.

Preferably, the flare system further comprises a control room ignition button (not shown in the figure) and a field ignition switch (not shown in the figure), wherein the control room ignition button is arranged on a computer of the control room, the field ignition switch is arranged on a flare gas treatment site, once flame in the flare barrel 12 or the pilot burner 131 is extinguished, the control room ignition button is ignited, so that manual ignition of the high-altitude igniter 132 can be realized, or the field ignition switch is pressed on the site, so that manual ignition of the deflagration tube 133 can be realized, and finally, fuel in the pilot burner 131 is combusted, and further, flare gas in the flare barrel 12 is combusted.

Further, as shown in fig. 1, instrument 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 the embodiment. Specifically, instrument air enters the boundary region and passes through the boundary region main valve and then is divided into two parts, one part is connected into a ground deflagration system to provide a combustion-supporting air source for airtight deflagration ignition, and the other part provides an air source for all pneumatic valves. The oil is gasified by the gasifier 51 and then fed into the fuel gas buffer tank 52, and the natural gas directly enters the fuel gas buffer tank 52. The fuel in the fuel gas surge tank 52 is divided into four parts, with a portion of the fuel being admitted to the ground deflagration system to provide fuel for the ignition of the deflagration tubes 133, a portion of the fuel providing a source of combustion gas for all of the pilot lamps 131, a portion of the fuel providing a source of ignition gas for all of the overhead igniters 132, and a portion of the fuel providing a companion or co-fired fuel for all of the flare gas in the flare barrel 12. The steam enters the boundary region and passes through the boundary region main valve to be divided into two parts, wherein 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 separating tank 21, the water sealing tank 24, the water system pipeline and the jacket pipe. The nitrogen enters the boundary region and passes through the boundary region main valve to be respectively mixed with the flare gas in the lower barrel 11 of the hydrogen-rich flare subsystem, the ammonia-rich flare subsystem, the wet acid flare subsystem and the dry acid flare subsystem, so that the flow rigidity of the flare gas is increased, the nitrogen can also sequentially flow through the nitrogen supply header pipe 3 and the liquid separating tank 21 of each flare subsystem and the lower barrel 11 and then enter the flare barrel 12, and when the flare subsystem is under the working condition of high Wen Fangkong, the nitrogen can be supplemented into the flare barrel 12, the air pressure in the flare barrel 12 can be increased, and the reverse suction of air is prevented. After entering the boundary region, the water is divided into two parts, wherein one part provides sealing water for a water sealed tank 24 of the hydrogen-rich torch subsystem, and the other part is connected into a steam condensate pipeline mixer for eliminating the vibration of a steam condensate pipe.

As shown in fig. 1, the flare system of this 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 led out from the liquid separating tank 21 of the hydrogen-rich flare subsystem, the ammonia-containing condensate is a liquid led out from the liquid separating tank 21 of the ammonia-rich flare subsystem, the wet acid gas condensate is a liquid led out from the liquid separating tank 21 of the wet acid flare subsystem, the dry acid gas condensate is a liquid led out from the liquid separating tank 21 of the dry acid wet flare subsystem, and the steam condensate is a liquid after steam liquefaction.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. 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, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A torch system is characterized by comprising a fuel assembly and four torch subsystems, wherein each torch subsystem comprises a lower cylinder (11) and a torch head arranged on the lower cylinder (11), the lower cylinder (11) is communicated with a connecting pipeline for conveying torch gas, each torch head comprises a torch cylinder (12) and at least two ignition assemblies (13), the torch gas can enter the torch cylinder (12) from the lower cylinder (11), the at least two ignition assemblies (13) are uniformly distributed along the periphery of the torch cylinder (12), and the central axis of a flame outlet of each ignition assembly (13) is intersected with the central axis of the torch cylinder (12), each ignition assembly (13) comprises a pilot burner (131), a high-altitude igniter (132) and a deflagration tube (133), the pilot burner (131), the high-altitude igniter (132) and the deflagration tube (133) are communicated with the fuel assembly, and 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;

each flare subsystem further comprises a liquid separating tank (21), flare gas enters the flare barrel (12) through the liquid separating tanks (21) and the lower barrel (11), a pressure sensor (22) and a pressure adjusting piece (23) are arranged on the liquid separating tanks (21), the pressure sensor (22) is used for detecting the pressure of the flare gas in the liquid separating tanks (21), and the pressure adjusting piece (23) is configured to adjust the pressure of the flare gas;

every the import department of liquid separation pot (21) all is equipped with and supplies nitrogen header pipe (3), the torch system still include can with every supply nitrogen header pipe (3) intercommunication's nitrogen gas subassembly, the nitrogen gas that the nitrogen gas subassembly provided can flow through every in proper order supply nitrogen header pipe (3) of torch subsystem with liquid separation pot (21) reaches get into behind lower barrel (11) torch barrel (12), the nitrogen gas that the nitrogen gas subassembly provided can also directly get into the lower part of lower barrel (11) with the flare gas mixes.

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 partner firing assembly (14) fixed to the flare barrel (12), the partner firing assembly (14) comprises a first partner firing tube (141) and a second partner firing tube (142), the first partner firing tube (141) extends along an axial direction of the flare barrel (12), one end of the first partner firing tube (141) is communicated with the fuel assembly, the other end of the first partner firing tube (141) is communicated with the second partner firing tube (142), the second partner firing tube (142) is disposed along an outer circumference of the flare barrel (12), and a plurality of partner firing holes (1420) are provided at an upper end of the second partner firing tube (142).

3. The flare system of claim 1 wherein each flare tip further comprises a wind break ring (15), each wind break ring (15) comprising a plurality of wind break plates (151) spaced along the periphery of the flare barrel (12), the wind break plates (151) being secured to the outside of the flare barrel (12) and extending axially of the flare barrel (12), the upper ends of the wind break plates (151) being inclined toward a direction proximate the central axis of the flare barrel (12).

4. The flare system of claim 1 wherein each flare tip further comprises a fluid seal (16) disposed within the flare barrel (12), each fluid seal (16) being located in a lower portion of the flare barrel (12) and comprising a plurality of flare barrels spaced axially along the flare barrel (12), a large mouth end of each flare barrel being located below a small mouth end thereof, the diameter of the small mouth end of the flare barrel increasing in sequence from bottom to top in the axial direction of the flare barrel (12).

5. The flare system of claim 1, wherein the hydrogen-rich flare subsystem further comprises a water sealed tank (24), the water sealed tank (24) being located between the knock-out 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 configured to stop replenishing water when a liquid level reaches a second liquid level, the second liquid level being higher than the first liquid level.

6. 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) being disposed on the connecting conduit, each of the lower barrels (11) corresponding to at least one of the flame arrestors (25).

7. The flare system of claim 1 wherein each flare tip is provided with 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 flame temperature detected by the temperature sensor (26) reaches or exceeds a preset temperature.

8. The flare system of claim 1 wherein a flame detector is provided at the top of each of the flare tips, and wherein one of the detonation tube (133) and the overhead igniter (132) is capable of igniting flare gas upon detection of a flame extinction within the flare barrel (12) or the pilot burner (131).