CN211475974U - Integral simplified direct-ignition pilot burner petrochemical emptying torch burner - Google Patents

Abstract

An integrated simplified direct-ignition pilot burner petrochemical emptying torch combustor comprises a combustion head (1), a combustible mixed gas main pipe (2), an ignition electric nozzle (3), a Venturi injection pipe (4) and a fuel gas pipe (5); the upper end of the fuel gas pipe (5) is vertically connected with the venturi injection pipe (4), the upper end of the venturi injection pipe (4) is connected with the combustible mixed gas main pipe (2), the upper end opening outer cover of the combustible mixed gas main pipe (2) is covered with the fixed combustion head (1), and the ignition electric nozzle (3) is connected to the outer wall of the combustible mixed gas main pipe (2). The ignition, the flame transmission and the combustion head are integrated into a whole, the direct ignition is realized, the indirect flame transmission structure is omitted, the structure is simple, one path of fuel gas supplied to the main pipe is utilized to directly ignite the premixed combustible gas, and the stable and reliable flame of the pilot burner is formed. Has the advantages of simplifying equipment composition, saving fuel gas, improving reliability and the like.

Description

Integral simplified direct-ignition pilot burner petrochemical emptying torch burner

Technical Field

The utility model relates to a petrochemical enterprise apparatus for producing safety vent torch facility's institutional advancement technology, especially an organic whole simplify direct ignition changming lamp petrochemical industry vent torch combustor.

Background

The pilot burner of the torch facility works in severe meteorological environments such as land, high altitude of the sea, outdoor storm, rain, snow and the like. The burner of the pilot burner needs to meet the requirements of reliable ignition, stable combustion and no extinguishment under the high-temperature and high-corrosion working environment and the severe meteorological environment. The emptying flare tip is also called as a high-altitude flare for treating waste gas and toxic gas or combustible gas under accident conditions generated by petrochemical equipment. The high-altitude torch is a flue facility consisting of an automatic control system, an ignition system and a pure vertical ascending pipeline of a steel structure, so that flame is remotely and automatically ignited and burnt at the top end and is far away from the ground, personnel and factories are not injured, and the height of a high-altitude combustion tower can be adjusted from 5M at the minimum to 200M at the maximum. The design content of the flare system generally comprises two parts, namely a flare gas discharge pipe network and a flare device. The design content of the discharge pipe network comprises a flare gas pipeline, condensate recovery and conveying equipment, the process of the pipeline, the design of piping, civil engineering, electricity and the like. The design content of the torch device comprises a torch head, a torch barrel body, a liquid separating tank, a water seal tank, an igniter, a pump and other equipment, and corresponding designs such as process piping, electric, telecommunication, automatic control, civil engineering, water supply and drainage, environmental protection and the like.

Performance requirements of the venting torch: 1. the discharge combustion is stable and no backfire occurs under the designed working condition. 2. Complete combustion, no smoke and environmental protection. 3. The flare tip of the emptying flare is provided with a dynamic sealing mechanism. 4. The combustion noise of the emptying torch is low, and the requirement of environmental noise is met. 5. The operation and maintenance of the emptying torch are simple, and the operation cost is low. 6. When the device operates normally, the pilot burner is not ignited, and gas can be saved. Once an accident occurs, along with the discharge of a large amount of cyclohexane-containing gas to a torch, the torch system is required to immediately ignite an pilot burner, and further, the discharged cyclohexane gas is ignited, so that the accident gas is ensured to be safely discharged. 7. Has a spare explosion type ignition device. 8. The molecular sealer is arranged at the bottom of the flare tip of the emptying flare, so that air backflow can be reliably prevented, and the safety of a flare system is ensured. 9. The emptying torch has a semi-automatic and hard manual ignition mode, and an ignition system can be in data communication with a DCS (distributed control system).

The traditional pilot burner adopts split ignition, two stages indirectly transfer flame, and two systems realize reliable ignition and stable combustion in steps. The structure comprises a separate fuel gas supply, an external flame transfer pipe, a split ignition device of an ignition electric nozzle, and an pilot burner with a pilot and a fuel gas main pipe.

In the prior art, a flame transfer pipe is arranged as an external flame transfer pipe, reliable ignition is ensured by adopting a diffusion combustion mode for ignition, and then the external flame is transferred to a combustion head of an incandescent lamp to ignite premixed combustible gas discharged from a main pipe. Two paths of fuel gas are actually required to be respectively used for indirect flame transfer of a split ignition facility, and the other path of fuel gas is used for a pilot burner to jointly form a two-stage system to form pilot burner flame.

The existing related equipment has the defects of huge facilities, complex structure, high fuel consumption, gradually reduced reliability in the using process and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integrative simplification direct ignition Changming lamp petrochemical industry unloading torch combustor has reduced the one-level system, solves prior art problem.

The purpose of the utility model is realized by the following technical measures: comprises a combustion head, a combustible mixed gas main pipe, an ignition electric nozzle, a Venturi injection pipe and a fuel gas pipe; the upper end of the fuel gas pipe is vertically connected with a Venturi injection pipe, the upper end of the Venturi injection pipe is connected with a main combustible mixed gas pipe, an upper end opening outer cover of the main combustible mixed gas pipe is fixedly provided with a combustion head, and an ignition electric nozzle is connected to the outer wall of the main combustible mixed gas pipe.

Particularly, the combustion head is of a pipe cap type structure, and the inner diameter of the combustion head is 150% of the outer diameter of the upper end opening pipe of the main combustible gas mixture pipe.

In particular, the inner diameter of the main combustible mixture pipe is larger than that of the fuel gas pipe.

Particularly, the ignition electric nozzle is connected between the bottom end port of the combustion head and the connecting point of the combustible mixed gas main pipe and the Venturi injection pipe.

In particular, the total height of the venturi ejector pipe is larger than the combustion head but smaller than the total height of the main pipe of the combustible mixed gas.

Particularly, the Venturi injection pipe is connected with the fuel gas pipe through a flange plate.

The utility model discloses an advantage and effect: the ignition, the flame transmission and the combustion head are integrated into a whole, the direct ignition is realized, the indirect flame transmission structure is omitted, the structure is simple, one path of fuel gas supplied to the main pipe is utilized to directly ignite the premixed combustible gas, and the stable and reliable flame of the pilot burner is formed. Has the advantages of simplifying equipment composition, saving fuel gas, improving reliability and the like.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

The reference numerals include:

1-combustion head, 2-combustible mixed gas main pipe, 3-ignition electric nozzle, 4-Venturi injection pipe and 5-fuel gas pipe.

Detailed Description

The utility model discloses the principle lies in, subtracts fuel gas supply, outer flame tube that passes among the components of a whole that can function independently ignition facility, and directly arrange ignition electric nozzle 3 in advance and mix 2 roots of combustible person in charge to ignite the pilot burner flame that forms reliable burning.

The utility model discloses a: the device comprises a combustion head 1, a combustible mixed gas main pipe 2, an ignition electric nozzle 3, a Venturi injection pipe 4 and a fuel gas pipe 5.

The present invention will be further explained with reference to the drawings and examples.

Example 1: as shown in the attached figure 1, the upper end of a fuel gas pipe 5 is vertically connected with a venturi injection pipe 4, the upper end of the venturi injection pipe 4 is connected with a combustible mixed gas main pipe 2, the upper end opening of the combustible mixed gas main pipe 2 is covered with a fixed burner head 1, and an ignition electric nozzle 3 is connected to the outer wall of the combustible mixed gas main pipe 2.

In the foregoing, the combustion head 1 is a cap-type structure, and the inner diameter of the combustion head 1 is 150% of the outer diameter of the upper port of the main combustible gas mixture pipe 2.

In the foregoing, the inner diameter of the main pipe 2 of the combustible mixture gas is larger than the inner diameter of the fuel gas pipe 5.

In the foregoing, the position of the ignition electric nozzle 3 is located between the bottom port of the combustion head 1 and the connecting point of the main pipe 2 of the combustible gas mixture and the venturi injection pipe 4.

In the foregoing, the total height of the venturi ejector tube 4 is greater than the combustion head 1 but less than the total height of the main combustible mixed gas tube 2.

In the foregoing, the venturi injecting pipe 4 is connected with the fuel gas pipe 5 through a flange.

The embodiment of the utility model provides an in, venturi draws penetrates pipe 4 is the pipeline that contracts earlier then gradually enlarges. The pressure difference between the inlet section and the minimum section is measured, and the flow rate can be obtained by using Bernoulli's theorem. The venturi injection pipe 4 is a built-in venturi pipe and a plug-in venturi pipe.

The embodiment of the utility model provides an in, fuel gas is supplied with by the fuel gas pipe 5 with 4 root hookups of venturi ejector, and the fuel gas that possesses certain pressure gets into 4 entries of venturi ejector, and automatic injection air forms to mix in advance combustible gas and gets into combustible mixture and be responsible for 2, is lighted by setting up the ignition electric nozzle 3 of being responsible for 2 roots at combustible mixture, reachs combustion head 1, forms reliable stable changming lamp flame.

The embodiment of the utility model provides an in, the high temperature zone is kept away from in the root that combustible mixture was responsible for in the electric mouth of igniteing, guarantees the reliability and the life-span of electric mouth 3 of igniteing.

The embodiment of the utility model provides a owing to reduced one-level system, save many fuel gases, can reach the function that the two-stage combination indirect flame transfer just can be realized of having required in the past.

Claims (6)

1. An integrated simplified direct-ignition pilot burner petrochemical emptying torch combustor comprises a combustion head (1), a combustible mixed gas main pipe (2), an ignition electric nozzle (3), a Venturi injection pipe (4) and a fuel gas pipe (5); the device is characterized in that the upper end of a fuel gas pipe (5) is vertically connected with a Venturi injection pipe (4), the upper end of the Venturi injection pipe (4) is connected with a combustible mixed gas main pipe (2), an opening outer cover at the upper end of the combustible mixed gas main pipe (2) is used for fixing a combustion head (1), and an ignition electric nozzle (3) is connected to the outer wall of the combustible mixed gas main pipe (2).

2. The integrated simplified direct-ignition pilot burner petrochemical evacuation torch burner as set forth in claim 1, wherein the burner head (1) is of a cap-and-tube structure, and the inner diameter of the burner head (1) is 150% of the outer diameter of the upper port of the main combustible mixture gas tube (2).

3. The integrated simplified direct-fired pilot burner petrochemical flare burner of claim 1 wherein the main combustible mixture pipe (2) has an inner diameter greater than the inner diameter of the fuel gas pipe (5).

4. The integrated simplified direct-ignition Changming lamp petrochemical evacuation torch burner according to claim 1, characterized in that the ignition electric nozzle (3) is connected between the bottom port of the burner head (1) and the connection point of the main flammable mixture gas pipe (2) and the venturi injection pipe (4).

5. The integrated simplified direct-ignition Changming lamp petrochemical evacuation torch burner of claim 1, characterized in that the total height of the Venturi ejector tube (4) is larger than the burner head (1) but smaller than the total height of the main pipe (2) of combustible mixture.

6. The integrated simplified direct-fired pilot burner petrochemical evacuation flare burner of claim 1 wherein the venturi eductor tube (4) is connected to the fuel gas tube (5) by a flange.

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