A pilot torch burner

Abstract

The application provides a guiding type torch burner, which comprises a torch vent pipe, a guiding cylinder, a windproof air guide ring, a guiding cylinder fixing round steel, a guiding cylinder supporting round steel, a windproof air guide ring fixing rib plate, a self-adjusting air door plate assembly and a self-adjusting air door plate stop pin; the guiding cylinder is fixed on the upper portion of the torch vent pipe through the supporting round steel; the bottom of the guiding cylinder is welded with the guiding cylinder supporting round steel in the windproof air guide ring and keeps a certain distance from the upper portion of the torch vent pipe; the middle and upper portion of the outer wall of the guiding cylinder is welded with the inner wall of the windproof air guide ring through the guiding cylinder fixing round steel; the windproof air guide ring fixing rib plate is welded on the torch vent pipe and the windproof air guide ring at two ends respectively; the lower portion of the windproof air guide ring is provided with the lever self-adjusting air door plate assembly and the self-adjusting air door plate stop pin. The application has simple structure, wide popularization range and can be simply modified on the existing diffusion combustion type torch burner, so that the burner can be stably and safely combusted under large, medium and small working conditions.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of safe and environmentally friendly technology, and particularly relates to a guide type torch burner. In particular, the present application relates to a guide type torch burner which can keep stable combustion and improve the burnout rate of exhaust gas according to the size of the exhaust gas. BACKGROUND

[0002] A torch system is an important safety discharge facility in a petrochemical enterprise, and functions to treat unbalanced gas in a petrochemical device, emergency exhaust gas during start-up and shutdown, and the like. The exhaust gas is flammable, explosive, and toxic, and can also contain hydrogen sulfide and other toxic substances, and thus needs to be discharged to a flare for combustion treatment. In order to meet the requirements of environmental protection and safety production, the flare burner needs to achieve a very high burnout rate.

[0003] The existing flare burners are mostly of a diffusion combustion type, and the flare combustion flame is exposed to the outside atmosphere without effective air combustion support, is greatly affected by the outside, and is not completely decomposed during flare gas combustion, which can easily cause extreme harm to the environment. In addition, due to the instability of the exhaust gas, the air-fuel ratio is less than 3, which causes incomplete combustion and black smoke from the flame, resulting in air pollution. The air-fuel ratio for normal combustion without smoke is generally more than 3.

[0004] The existing flare burners are mostly of a diffusion combustion type, and have the following disadvantages: (1) the flare combustion flame is exposed to the outside atmosphere without effective air combustion support, is greatly affected by the outside, and is not completely decomposed during flare gas combustion, which can easily cause extreme harm to the environment; (2) the commonly used pipe type flare head has a very concentrated gas flow at the flare outlet, and the air distribution inside and outside the flame zone is extremely uneven, often causing a central "oxygen deficiency" phenomenon, which affects the combustion effect; (3) the amount of flare gas combustion gas and the internal combustion temperature of the flare burner outlet heat storage chamber are not effectively cascade regulated, and the exhaust gas with a high burnout rate requirement lacks effective burnout protection; (4) under the condition of limited burnout rate, in order to meet the requirements of environmental protection indicators, in addition to limited means such as high calorific value gas combustion, sometimes the flare design height has to be artificially increased, and the flare engineering cost is also correspondingly increased.

[0005] Through a query, the existing flare burners have:

[0006] Patent name: A new air smoke type torch burner. The application discloses a new air smoke type torch burner, which comprises the following steps: air and torch gas are fully mixed by arranging a conical air duct outlet, a fire gathering block and a flame stabilizing hole structure outside the torch burner, so that the torch gas can be safely, stably and environmentally-friendlyly combusted. The preliminary mixing of air and torch gas is promoted by utilizing the jet entrainment principle of the torch gas; the further mixing of air and torch gas is realized by utilizing the conical air duct outlet structure, and more peripheral air can be entrained to participate in combustion; the low-speed area of combustible material is formed by utilizing the flow resistance of the fire gathering block and the fuel cohesion effect of the flame stabilizing hole, so that the burner can be stably and safely combusted. Although the outlet of the invention has a taper, it is closed and integrated, and when the air volume is large, the air-fuel ratio is less than 3, which causes poor combustion. When the gas volume is not particularly large and stable, the invention can be used, and when the exhaust volume is particularly large, it is easy to cause backflow and affect air mixing.

[0007] Patent name: A closed ground torch burner. The application discloses a closed ground torch burner, which comprises a base, a front cylinder vertically arranged on the top surface of the base, an air inlet pipe horizontally connected to the side of the front cylinder, a flame arrester flange-connected to the top of the front cylinder, a rear cylinder flange-connected to the top end of the flame arrester, the rear cylinder being composed of an inverted conical section, a cylindrical section rotationally connected to the top end of the inverted conical section and an end cover blocked at the top end of the cylindrical section, a plurality of gas outlet holes being circumferentially and interval ly arranged on the circumferential side of the cylindrical section, a reinforcing rib plate being arranged on the inner side wall of the cylindrical section corresponding to each gas outlet hole, a through hole corresponding to the gas outlet hole being formed in the reinforcing rib plate, a horizontal pipe being communicated with the outer side wall of the cylindrical section corresponding to each gas outlet hole, a same-diameter elbow pipe being connected to the tail end of the horizontal pipe, the tail end of the same-diameter elbow pipe being upward and connected with a vertical pipe, a spray head being detachably connected to the top end of the vertical pipe, the spray head being composed of a first cylindrical pipe, a conical pipe, a second cylindrical pipe and an inverted conical pipe from bottom to top, the bottom end of the first cylindrical pipe being communicated with the top end of the vertical pipe, and a jet opening being formed in the top end of the inverted conical pipe. The structure of the invention is complex, the torch burner is easy to be blown out when the exhaust volume is small, and environmental pollution exists.

[0008] The above-mentioned patents show that when the exhaust volume changes greatly, the mixed combustion quality cannot be completely guaranteed, and environmental pollution exists.

[0009] Therefore, it is necessary to provide a guide type torch burner to ensure that the burner can be stably and safely combusted under large, medium and small working conditions. SUMMARY

[0010] The application aims to overcome the shortcomings of the prior art and provide a guide type torch burner to ensure that the burner can be stably and safely combusted under large, medium and small working conditions.

[0011] A kind of guiding type torch burner, including including torch vent pipe, guide cylinder, windproof air ring, guide cylinder fixed round steel, guide cylinder support round steel, windproof air ring fixed rib plate, self-regulating air door plate assembly, self-regulating air door plate stop pin,

[0012] The guide cylinder support round steel is arranged inside the windproof air ring, and the guide cylinder is fixed on the upper portion of the torch vent pipe by the guide cylinder support round steel,

[0013] The bottom of the guide cylinder is welded to the guide cylinder support round steel and maintains a certain distance from the upper portion of the torch vent pipe;

[0014] The outer wall of the middle upper portion of the guide cylinder is welded to the inner wall of the windproof air ring by the guide cylinder fixed round steel, to ensure the stability and safety of the guide cylinder;

[0015] The windproof air ring fixed rib plate is evenly provided with six at both ends, and is welded to the torch vent pipe and the windproof air ring, respectively;

[0016] The lower portion of the windproof air ring is provided with a lever self-regulating air door plate assembly and a self-regulating air door plate stop pin, and the number of the self-regulating air door plate stop pin is six;

[0017] The lever self-regulating air door plate assembly is composed of six single air door plates, which are in contact with the six self-regulating air door plate stop pins, respectively.

[0018] Further, the guide cylinder is a tapered cylinder structure with a small upper portion and a large lower portion, the upper tube opening diameter of the guide cylinder is greater than the torch vent pipe opening diameter and less than the lower tube opening diameter of the guide cylinder, the lower tube opening diameter of the guide cylinder is greater than the torch vent pipe opening diameter and less than the diameter of the windproof air ring, and the guide cylinder, the torch vent pipe opening and the windproof air ring are concentric.

[0019] Further, the single air door plate is provided with an air door plate sleeve and an air door plate, the air door plate and the air door plate are fixedly connected, and the air door plate sleeve is sleeved on the windproof air ring fixed rib plate.

[0020] Further, the radial edge of the single air door plate is overlapped, and the circumferential edge is in the shape of an involute.

[0021] Further, when the single air door plate is in the state of discharging vent air from the torch vent pipe, it is opened upward, and the opening degree is automatically adjusted according to the size of the vent air, and after the vent air is discharged, it falls back to a horizontal state under the action of gravity.

[0022] The embodiment of the present application brings the following beneficial effects:

[0023] The guiding type torch burner utilizes the chimney suction gas dynamics principle to form a reinforced suction effect of the natural gas exhaust gas, mixes the natural gas exhaust gas and air sufficiently, reaches a sufficient combustion state, and improves the burnout rate of the natural gas. When the amount of the natural gas exhaust gas increases, the amount of the air sucked around the guiding cylinder also increases correspondingly, eliminates the insufficient combustion condition when the torch burns, and controls the occurrence of the pollution environment event. The guiding type torch burner has simple structure, wide popularization range, can be simply modified on the existing diffusion combustion type torch burner, and can realize stable and safe combustion of the burner under large, medium and small working conditions.

[0024] The guiding pipe utilizes the chimney self-ventilation principle, and the chimney has larger self-ventilation capacity when the chimney is higher. The innovation belongs to a double-guiding suction design and can cope with changes in large and small exhaust gas amounts. When the exhaust gas amount is small, the air guided by the guiding pipe is mixed with the exhaust gas of the venting opening and burns at the bottom. When the exhaust gas amount gradually increases, the exhaust gas impacting the conical guiding pipe increases, the conical closing of the guiding cylinder can increase the flow rate of the exhaust gas, the exhaust gas is blown to higher space, the air suction capacity is strengthened, and the exhaust gas is mixed with the surrounding air sufficiently to improve the burnout rate. The flare gas combustion gas amount and the internal combustion temperature of the outlet heat accumulation chamber of the torch burner form effective cascade regulation, and the exhaust gas with high burnout rate requirement has effective burnout guarantee.

[0025] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are referred to for detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural schematic view of the guiding type torch burner provided by the embodiment of the present application is shown in the figure.

[0028] Figure 2 A windproof air guiding ring structural schematic view of the guiding type torch burner provided by the embodiment of the present application is shown in the figure.

[0029] Figure 3 A self-adjusting damper plate of the guiding type torch burner provided by the embodiment of the present application is shown in the figure.

[0030] Figure 4 A side view of the damper plate of the guiding type torch burner provided by the embodiment of the present application is shown in the figure.

[0031] The meanings of the symbols in the figure are as follows:

[0032] 1-flare vent pipe, 2-guide cylinder, 3-windproof air guide ring, 4-guide cylinder fixing round steel, 5-guide cylinder supporting round steel, 6-windproof air guide ring fixing rib, 7-self-adjusting damper plate assembly, 7-1-single damper plate, 7-1-1-damper plate sleeve, 7-1-2-damper plate, 8-self-adjusting damper plate stop pin. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] As shown in the drawings, Figures 1-2 The embodiments of the present application provide a guide type flare burner, which comprises a flare vent pipe 1, a guide cylinder 2, a windproof air guide ring 3, a guide cylinder fixing round steel 4, a guide cylinder supporting round steel 5, a windproof air guide ring fixing rib plate 6, a self-adjusting damper plate assembly 7, a self-adjusting damper plate stop pin 8,

[0035] The guide cylinder supporting round steel 5 is arranged inside the windproof air guide ring 3, and the guide cylinder 2 is fixed on the upper part of the flare vent pipe 1 through the guide cylinder supporting round steel 5,

[0036] The bottom of the guide cylinder 2 is welded to the guide cylinder supporting round steel 5 and keeps a certain distance from the upper part of the flare vent pipe 1;

[0037] The outer wall of the middle and upper part of the guide cylinder 2 is welded to the inner wall of the windproof air guide ring 3 through the guide cylinder fixing round steel 4, so as to ensure the stability and safety of the guide cylinder 1;

[0038] The guide cylinder 2 is a conical cylinder structure with a small upper part and a large lower part, the upper pipe opening diameter of the guide cylinder 2 is greater than the diameter of the flare vent pipe 1 and less than the diameter of the lower pipe opening of the guide cylinder 2,

[0039] The diameter of the lower pipe opening of the guide cylinder 2 is greater than the diameter of the flare vent pipe 1 and less than the diameter of the windproof air guide ring 3, and the guide cylinder 2, the flare vent pipe 1 and the windproof air guide ring 3 are concentric.

[0040] The windproof air guide ring fixing rib plate 6 is uniformly provided with six rib plates along the circumference, and the two ends are welded to the flare vent pipe 1 and the windproof air guide ring 3, respectively;

[0041] Further, the windproof air guide ring 3 is provided with a lever self-adjusting damper plate assembly 7 at the lower part, the greater the air extraction amount, the greater the damper plate opening, which ensures that the air-fuel ratio reaches the best, and also prevents the air extraction amount from being too large to blow out the torch.

[0042] As shown in Figures 3-4 The self-adjusting damper plate assembly 7 is composed of six single damper plates 7-1, each of which is provided with a damper plate sleeve 7-1-1 and a damper plate 7-1-2, and the damper plate sleeve 7-1-1 and the damper plate 7-1-2 are fixedly connected, the damper plate sleeve 7-1-1 is sleeved on the air-protecting air guide ring fixed rib plate 6,

[0043] In this embodiment, the radial edges of the six single damper plates 7-1 of the self-adjusting damper plate assembly 7 are superimposed, and the circumferential edges are involute lines.

[0044] Further, the lower part of the air-protecting air guide ring 3 is provided with six self-adjusting damper plate blocking pins 8;

[0045] When the flare vent pipe 1 is venting, the six single damper plates 7-1 open upward, and the opening degree is automatically adjusted according to the amount of venting air. After the venting air ends, the six single damper plates 7-1 fall back to a horizontal state under the action of gravity and are in contact with the six self-adjusting damper plate blocking pins 8, respectively.

[0046] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles, or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles, or devices.

[0047] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pilot torch burner characterized by, The torch vent pipe, the guide cylinder, the windproof air guiding air ring, the guide cylinder fixing round steel, the guide cylinder supporting round steel, the windproof air guiding air ring fixing rib plate, the self-adjusting air door plate assembly, the self-adjusting air door plate stop pin, The guide cylinder supporting round steel is arranged inside the windproof air guiding air ring, and the guide cylinder is fixed on the upper portion of the torch vent pipe by the guide cylinder supporting round steel, The bottom of the guide cylinder is welded with the guide cylinder supporting round steel, and the distance between the bottom of the guide cylinder and the upper portion of the torch vent pipe is constant; The middle upper portion of the outer wall of the guide cylinder is welded with the inner wall of the windproof air guiding air ring by the guide cylinder fixing round steel, so as to ensure the stability and safety of the guide cylinder; The windproof air guiding air ring fixing rib plate is evenly arranged with six rib plates at two ends, which are welded on the torch vent pipe and the windproof air guiding air ring, respectively; The lower portion of the windproof air guiding air ring is provided with the lever self-adjusting air door plate assembly and the self-adjusting air door plate stop pin, and the number of the self-adjusting air door plate stop pin is six; The lever self-adjusting air door plate assembly is composed of six single air door plates, which are in contact with the six self-adjusting air door plate stop pins, respectively; The guide cylinder is a conical cylinder structure with a small upper portion and a large lower portion, The upper pipe port diameter of the guide cylinder is greater than the torch vent pipe port diameter and less than the lower pipe port diameter of the guide cylinder, The lower pipe port diameter of the guide cylinder is greater than the torch vent pipe port diameter and less than the diameter of the windproof air guiding air ring; The radial edge of the single air door plate is overlapped, and the circumferential edge is a involute line; When the torch vent pipe is vented, the single air door plate is opened upward, and the opening degree is automatically adjusted according to the size of the vented air, and the single air door plate falls to be horizontal under the action of gravity after the vented air is finished.

2. The pilot torch burner of claim 1, wherein, The guide cylinder, the torch vent pipe and the windproof air guiding air ring are concentric.

3. The pilot torch burner of claim 1, wherein, The single air door plate is provided with an air door plate sleeve and an air door plate, the air door plate and the air door plate sleeve are fixedly connected, and the air door plate sleeve is sleeved on the windproof air guiding air ring fixing rib plate.

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