Torch head for eliminating smoke by using compressed air

Abstract

The utility model provides a torch head for eliminating smoke by using compressed air, which relates to the technical field of tail gas treatment in the petrochemical industry and comprises a torch cylinder body, an incandescent light ignition device, a compressed gas cylinder, an induced draft fan and an exhaust pipe. According to the torch head for eliminating smoke by using the compressed air, after emptying gas generated in industrial production enters a torch system through the gas inlet cylinder, the emptying gas stably enters the torch cylinder body through the connecting cylinder. And the emptied gas is ignited by the incandescent light in the torch cylinder body for combustion treatment. The induced draft fan is started, negative pressure is formed in the compressed gas cylinder, and external compressed gas enters the compressed gas cylinder and then is sprayed into the torch cylinder in a high-speed jet flow mode through exhaust holes in a hole plate in the side face of the periphery of the exhaust pipe. The compressed gas of the high-speed jet flow is fully mixed with the emptying gas, so that the disturbance of the gas is enhanced, and the emptying gas is more fully combusted. And meanwhile, the supplement of the compressed gas is beneficial to stabilizing the flame, so that the flame is prevented from being extinguished or unstable combustion caused by factors such as strong wind is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to petrochemical industry tail gas treatment technical field especially relates to a torch head of smoke elimination with compressed air. BACKGROUND

[0002] With the development of petrochemical industry and the like, production device scale expands, and a large amount of gas is discharged during daily operation, start and stop and sudden accidents. In order to guarantee the safety and stability of the device, the discharge gas is often sent to the torch head for combustion treatment through the torch gas pipe network.

[0003] Because the discharge temperature of general torch gas is relatively high, during the accident discharge process, heavy components are not condensed in time and are burned in the torch head, and a large amount of air is needed for the combustion of the heavy component torch gas, if sufficient air cannot be supplied in time, the torch head will emit black smoke. The phenomenon of incomplete combustion leading to black smoke will threaten the surrounding environment and the living space of factory residents. UTILITARY MODEL

[0004] The utility model provides a torch head of smoke elimination with compressed air, solves the problem that the combustion of heavy component torch gas needs a large amount of air, if sufficient air cannot be supplied in time, the torch head will emit black smoke.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a torch head of smoke elimination with compressed air, including torch cylinder body, long lasting lamp ignition device, compressed gas cylinder, air draught fan and exhaust pipe, the outer peripheral side of the upper end opening of torch cylinder body is fixed with a plurality of long lasting lamp ignition device, the compressed gas cylinder is arranged at one side of torch cylinder body, the part segment of compressed gas cylinder is inserted in the inside of torch cylinder body, and a plurality of exhaust pipes are fixed and uniformly distributed on the outer peripheral side surface of the part segment, the part segment of compressed gas cylinder is fixedly connected with branch pipe outside torch cylinder body, and the free end of branch pipe is connected with air draught fan.

[0006] Preferably, the part segment of the compressed gas cylinder inserted in the inside of the torch cylinder body is vertically arranged and coaxially arranged with the torch cylinder body.

[0007] Preferably, the connecting end of the branch pipe and the compressed gas cylinder is located on the outer peripheral side surface of the compressed gas cylinder.

[0008] Preferably, the end face of the upper end opening of the exhaust pipe is flush with the end face of the upper end opening of the torch cylinder body.

[0009] Preferably, a plurality of installation openings are uniformly distributed and arranged on the outer peripheral side surface of the exhaust pipe, and the installation openings are close to the upper end opening of the exhaust pipe.

[0010] Preferably, the inside of the installation port is fixedly connected with a hole plate, and a plurality of exhaust holes are uniformly arranged on the hole plate.

[0011] Preferably, the upper end of the compressed gas cylinder is closed, and the upper end of the exhaust pipe is open.

[0012] Preferably, the lower end of the torch cylinder body is fixedly connected with a connecting cylinder, the upper end of the gas inlet cylinder is inserted into the inside of the connecting cylinder.

[0013] Preferably, the diameter of the torch cylinder body is larger than the diameter of the connecting cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the vent gas generated by industrial production enters the torch system through the gas inlet cylinder, due to the taper structure of the upper end of the gas inlet cylinder, the gas flow rate is increased, the pressure is stable, and then the gas is smoothly introduced into the torch cylinder body through the connecting cylinder. The continuous operation of the pilot light ignition device maintains stable combustion of the flame, and provides a stable ignition source for the vent gas in the torch cylinder body. Under normal working conditions, the vent gas is ignited by the pilot light in the torch cylinder body and is subjected to combustion treatment. When the gas flow fluctuates or combustion is unstable, the induced draft fan is started, and negative pressure is formed in the compressed gas cylinder. The external compressed gas enters the compressed gas cylinder and is sprayed into the torch cylinder body in the form of high-speed jet flow through the exhaust holes in the hole plate on the outer peripheral side surface of the exhaust pipe. The compressed gas in the form of high-speed jet flow is fully mixed with the vent gas, enhances the disturbance of the gas, and makes the vent gas burn more fully. At the same time, the supplement of the compressed gas helps to stabilize the flame and prevent the flame from being extinguished or combustion from being unstable due to wind and other factors. The high-temperature flue gas after combustion is discharged from the open upper end of the torch cylinder body, and the treatment of the vent gas is completed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the torch head structure using compressed air to eliminate smoke of the utility model;

[0017] Figure 2 It is a front view of the torch head using compressed air to eliminate smoke of the utility model;

[0018] Figure 3 It is a schematic view of the installation position of the pilot light ignition device of the utility model;

[0019] Figure 4 It is a sectional view of the compressed gas cylinder located in the inside of the torch cylinder body of the utility model;

[0020] Figure 5 It is a schematic view of the structure of the connecting cylinder matched with the gas inlet cylinder of the utility model;

[0021] Figure 6 is an enlarged view of A in figure Figure 4

[0022] Figure 7 is an enlarged view of B in figure Figure 5

[0023] Figure Mark: 1, torch cylinder; 2, long-lasting light ignition device; 3, connecting cylinder; 4, air inlet cylinder; 5, compressed gas cylinder; 51, branch pipe; 6, air blower; 7, exhaust pipe; 71, installation opening; 8, orifice plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] The utility model provides a kind of torch head with compressed air smoke elimination, as shown in figures Figure 1 And Figure 3 It includes torch cylinder 1, long-lasting light ignition device 2, compressed gas cylinder 5, air blower 6 and exhaust pipe 7, and multiple long-lasting light ignition devices 2 are fixed on the outer circumferential side of the upper end opening of torch cylinder 1, and long-lasting light ignition device 2 is composed of burner, igniter, gas supply pipeline and the like, and the flame is kept burning continuously, to provide stable ignition source for vent gas in torch cylinder 1, and the circumferential distribution design makes ignition more uniform, with wide coverage.

[0026] As shown in figures Figure 2 Compressed gas cylinder 5 is arranged on one side of torch cylinder 1, and compressed gas cylinder 5 is connected with compressed gas supply pipeline at the lower end, and compressed gas cylinder 5 is divided into vertical section inserted into the inside of torch cylinder 1 and extension section located outside, and hollow in the inside.As shown in figures Figure 4 And Figure 5 Part of compressed gas cylinder 5 is inserted into the inside of torch cylinder 1, and multiple exhaust pipes 7 are fixed on the circumferential side of the part of section, and the part of section of compressed gas cylinder 5 inserted into the inside of torch cylinder 1 is vertically arranged, and coaxially arranged with torch cylinder 1, and branch pipe 51 is fixedly connected on the part of section of compressed gas cylinder 5 located outside torch cylinder 1, and branch pipe 51 is connected with compressed gas cylinder 5, and the connecting end of branch pipe 51 is located on the circumferential side of compressed gas cylinder 5, and the free end of branch pipe 51 is connected with air blower 6. Air blower 6 forms negative pressure in compressed gas cylinder 5 by suction, to make external compressed gas enter the system.

[0027] As shown in figures Figure 6 And Figure 7 ​As shown, the upper opening face of the exhaust pipe 7 is flush with the upper opening face of the flare tube 1, and the end-light ignition device 2 is also flush with the upper opening face of the flare tube 1. This flush alignment ensures that the flame of the end-light can directly and quickly contact the vented gas at the opening of the flare tube 1. When the vented gas rises from the flare tube 1 to the opening, it can be ignited by the end-light immediately, avoiding ignition delay or failure due to excessive ignition distance or improper positioning, ensuring that the flare can quickly and stably start the combustion process under any operating conditions. Furthermore, the flush alignment of the exhaust pipe 7 with the upper opening face of the flare tube 1 allows the compressed gas, after being ejected from the exhaust pipe 7, to immediately participate in the mixing in the area where the vented gas has just been ignited, enhancing gas disturbance in the initial combustion stage, ensuring sufficient contact between fuel and combustion-supporting gas, promoting rapid and complete combustion, and improving combustion efficiency. Multiple mounting ports 71 are evenly distributed around the outer circumference of the exhaust pipe 7, with the mounting ports 71 located near the upper opening of the exhaust pipe 7. An orifice plate 8 is fixedly connected inside each mounting port 71, and multiple exhaust holes are evenly distributed on the orifice plate 8. The exhaust holes on the orifice plate 8 allow gas to be ejected through multiple channels, injecting compressed air into the opening of the flare cylinder 1, directly increasing the air content in that area and providing more sufficient oxygen for the combustion reaction, thus meeting the oxygen requirements for complete combustion of the vented gas. The upper end of the compressed gas cylinder 5 is closed, while the upper end of the exhaust pipe 7 is open. The closed compressed gas cylinder 5 and the open exhaust pipe 7 work together to ensure that compressed gas can only be discharged from the exhaust pipe 7.

[0028] The exhaust port is a small-diameter hole. The compressed gas in the compressed gas cylinder 5 is injected into the torch cylinder 1 in the form of a high-speed jet through the exhaust port on the orifice plate 8, which makes the compressed gas diffuse rapidly, improves the mixing efficiency, enhances the combustion completeness, and strengthens the combustion effect.

[0029] like Figure 5 As shown, a connecting cylinder 3 is fixedly connected to the lower end of the flare tube 1, and an air inlet cylinder 4 is fixedly connected to the lower end of the connecting cylinder 3. The upper end of the air inlet cylinder 4 is inserted into the interior of the connecting cylinder 3. The upper end of the air inlet cylinder 4 is tapered, with a smaller opening size. The air inlet cylinder 4 receives vented gas from the plant and, through its tapered structure, increases the gas flow rate and stabilizes the pressure, providing favorable gas conditions for subsequent combustion.

[0030] The diameter of the flare tube 1 is larger than that of the connecting tube 3, and the transition section is gradually expanding, so the velocity of the venting gas slows down when it enters the flare tube 1 from the connecting tube 3. As the core combustion space of the flare system, the flare tube 1 accommodates the venting gas and ensures its complete combustion, provides an installation position for the continuous lamp ignition device 2, ensures ignition stability, and works with the connecting tube 3 and the air inlet tube 4 to form a gas delivery channel.

[0031] Using this utility model, such asFigure 1 and Figure 2 As shown in the figure, when the vent gas generated by industrial production enters the torch system through the air inlet cylinder 4, due to the tapered structure of the upper end of the air inlet cylinder 4, the gas flow rate is increased and the pressure is stabilized, and then it is smoothly introduced into the torch cylinder 1 through the connecting cylinder 3. The continuous operation of the pilot light ignition device 2 keeps the flame burning stably, providing a stable ignition source for the vent gas in the torch cylinder 1. Under normal working conditions, the vent gas in the torch cylinder 1 is ignited by the pilot light and is subjected to combustion treatment. When the gas flow fluctuates or the combustion is unstable, the induced draft fan 6 is started, and a negative pressure is formed in the compressed gas cylinder 5. The external compressed gas enters the compressed gas cylinder 5, and then is sprayed into the torch cylinder 1 in the form of high-speed jet through the exhaust holes on the peripheral side hole plate 8 of the exhaust pipe 7. The compressed gas in the form of high-speed jet is fully mixed with the vent gas, enhancing the disturbance of the gas and making the vent gas burn more fully. At the same time, the supplement of compressed gas helps to stabilize the flame and prevent the flame from being extinguished or causing unstable combustion due to strong wind and other factors. The high-temperature flue gas after combustion is discharged from the upper opening of the torch cylinder 1, and the treatment of the vent gas is completed.

[0032] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A flare head for smoke elimination with compressed air, comprising a flare cylinder (1) and a pilot light ignition device (2), a plurality of said pilot light ignition devices (2) being fixed to the outer peripheral side of the upper end opening of said flare cylinder (1), characterized in that, Also include compressed gas cylinder (5), fan (6) and exhaust pipe (7), the compressed gas cylinder (5) is arranged in one side of the torch cylinder body (1), the compressed gas cylinder (5) is inserted in the inside of the torch cylinder body (1) and the outer peripheral side of the part segment is fixed with multiple exhaust pipes (7) on the circumference, the compressed gas cylinder (5) is fixedly connected with branch pipe (51) on the part segment outside the torch cylinder body (1), the free end of the branch pipe (51) is connected with the fan (6).

2. A flare head for smoke abatement with compressed air according to claim 1, characterized in that The part segment of the compressed gas cylinder (5) inserted in the inside of the torch cylinder body (1) is vertically arranged, and is coaxially arranged with the torch cylinder body (1).

3. The flare head for smoke abatement with compressed air according to claim 1, characterized in that, The connecting end of the branch pipe (51) and the compressed gas cylinder (5) is located on the outer peripheral side of the compressed gas cylinder (5).

4. The flare tip for smoke abatement with compressed air of claim 1, wherein, The end face of the upper end opening of the exhaust pipe (7) is flush with the end face of the upper end opening of the torch cylinder body (1).

5. The flare tip for smoke abatement with compressed air of claim 1, wherein, Multiple setting ports (71) are circumferentially arranged on the outer peripheral side of the exhaust pipe (7), and the setting ports (71) are close to the upper end opening of the exhaust pipe (7).

6. A flare head for smoke abatement with compressed air according to claim 5, characterized in that The inside of the setting port (71) is fixedly connected with a hole plate (8), and multiple exhaust holes are arranged on the hole plate (8).

7. A flare head for smoke abatement with compressed air according to claim 6, characterized in that The upper end of the compressed gas cylinder (5) is closed, and the upper end of the exhaust pipe (7) is open.

8. The flare tip for smoke abatement with compressed air of claim 1, wherein, The lower end of the torch cylinder body (1) is fixedly connected with a connecting cylinder (3), the lower end of the connecting cylinder (3) is fixedly connected with an air inlet cylinder (4), and the upper end of the air inlet cylinder (4) is inserted in the inside of the connecting cylinder (3).

9. A flare head for smoke abatement with compressed air according to claim 8, characterized in that The diameter size of the torch cylinder body (1) is greater than the diameter size of the connecting cylinder (3).

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