CN213577518U - Combustion and gas-separation biogas torch - Google Patents

Abstract

The utility model relates to a burning analytic gas marsh gas torch, especially burning analytic gas marsh gas torch comprises a torch section of thick bamboo, marsh gas combustor, shrink tube, fire blocking plate, connecting pipe, diffusion tube, spray tube, intermediate layer heat exchanger, instrument controlling means. After the methane is completely combusted, high-temperature flue gas is provided through the shrinkage pipe and the fire retardant disc, desorption gas enters the spray pipe after being preheated by the interlayer heat exchanger, and the high-temperature flue gas is injected and mixed with the desorption gas to be combusted in the diffusion pipe. In the whole process, the desorption gas is not contacted with the open fire of the biogas all the time, the combustion is completed in the diffusion pipe, and the desorption gas is discharged after reaching the national discharge standard. The combustion and decomposition gas biogas torch utilizes biogas to combust and decompose gas, effectively utilizes environment-friendly resources, has the advantages of large treatment flow, small occupied area, convenient installation, high thermal efficiency, low operating cost, safety, environmental protection and the like, and has better economic benefit and social benefit for harmless treatment of the decomposition gas.

Description

Combustion and gas-separation biogas torch

Technical Field

The utility model relates to a burning analytic gas marsh gas torch, which is applied to the garbage disposal engineering in the environmental protection field. The marsh gas torch for burning analysis gas consists of torch barrel, marsh gas burner, contracting pipe, fire resisting disc, connecting pipe, diffusing pipe, nozzle, sandwiched heat exchanger and instrument controller. After the methane is completely combusted, high-temperature flue gas is provided through the shrinkage pipe and the fire retardant disc, desorption gas enters the spray pipe after being preheated by the interlayer heat exchanger, and the high-temperature flue gas is injected and mixed with the desorption gas to be combusted in the diffusion pipe. In the whole process, the desorption gas is not contacted with the open fire of the biogas all the time, the combustion is completed in the diffusion pipe, and the desorption gas is discharged after reaching the national discharge standard.

Background

The main components of the desorption gas comprise hydrogen sulfide, carbon disulfide, ammonia gas, carbon dioxide, methane, nitrogen, trimethylamine, styrene, methyl mercaptan, dimethyldisulfide and the like, and the following problems are caused if the desorption gas is directly introduced into a methane flame for combustion:

1. the decomposed gas contains combustible components such as hydrogen sulfide and methane, and once the combustible components reach the explosion limit range, the explosion danger can occur in a closed space when the gas meets open fire.

2. The carbon dioxide contained in the decomposed gas can interfere the normal combustion of the methane if directly mixed with the methane flame, which causes insufficient combustion air-fuel ratio, incomplete combustion, black smoke, even flameout, even worse, if flameout occurs, due to the continuous supply of a large amount of methane, the disaster is inevitable!

3. If the analytic gas is directly introduced at the upper part of the biogas flame, due to the mixing characteristic of the gaseous double-stream under normal pressure, the analytic gas and the biogas combustion products can generate a layered flow phenomenon, can not be fully mixed as people imagine, can form new pressure balance and generate layering in the flare barrel, and then are discharged to the air in different ways. Therefore, the direct introduction of the decomposed gas into the upper part of the biogas flame is only realized by utilizing a flare stack smoke exhaust pipeline, and is equivalent to direct empty discharge.

Disclosure of Invention

In order to solve the problem, the utility model provides a burning and resolving gas marsh gas torch, which adopts the following innovative technologies in the design:

1. the telescopic pipe, the connecting pipe and the fire-retardant disc are designed in the torch barrel, and form a biogas combustion chamber together with the biogas burner, so that biogas is not exposed to desorption gas all the time in the biogas combustion process, and the detonation danger is fundamentally avoided.

2. The spray pipe and the diffusion pipe are designed in the torch barrel, and the decomposed gas is mixed and combusted in the diffusion pipe and does not enter a methane combustion space, so that the phenomenon of smoldering fire in methane combustion is prevented, and the danger of secondary reburning explosion of methane is fundamentally avoided.

3. The interlayer heat exchanger is designed in the torch barrel, so that the thermal decomposition temperature of the desorption gas is ensured, and the heat energy is effectively utilized.

4. A spray pipe and a diffusion pipe are designed in the torch barrel, and high-temperature biogas flue gas and desorbed gas are fully mixed in the diffusion pipe and quickly combusted.

The utility model provides a technical scheme that its technical problem adopted is:

the biogas burner is arranged in the torch barrel, and ignition and combustion control is carried out through the instrument control device. The device comprises a torch barrel, a biogas burner, a contraction pipe, a fire-blocking plate, a spray pipe and a connecting pipe, wherein a closed combustion chamber is formed by the contraction pipe, the connecting pipe and an interlayer between the diffusion pipe and the torch barrel is an interlayer heat exchanger. After the biogas is completely combusted, high-temperature flue gas is generated and enters the diffusion tube through the contraction tube and the fire retardant disc and the connecting tube under the injection effect of the spray tube. The analysis gas enters the spray pipe after being preheated by the interlayer heat exchanger, and high-temperature flue gas is injected, fully mixed and rapidly combusted. In the whole process, the desorption gas does not enter the torch barrel all the time, does not contact with open fire of the biogas, does not interfere the normal combustion of the biogas, completes the combustion in the diffusion pipe, and is discharged after reaching the national discharge standard.

The utility model has the advantages that:

the biogas torch for burning and decomposing gas utilizes biogas to burn and decompose gas, effectively utilizes environment-friendly resources, can ensure efficient and safe burning of the biogas, can prevent deflagration danger caused by the fact that the decomposed gas contacts with open fire of the biogas, and avoids the danger of accidental flameout caused by anoxic burning of the biogas. The burning and resolving gas biogas torch has the advantages of large treatment flow, small occupied area, convenient installation, high thermal efficiency, low operating cost, safety, environmental protection and the like, and has better economic benefit and social benefit for the harmless treatment of resolving gas.

Drawings

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

Fig. 1 is a schematic view of the present invention.

In the figure 1, a torch barrel, 2, a biogas burner, 3, a contraction pipe, 4, a fire retardant disc, 5, a connecting pipe, 6, a diffusion pipe, 7, a spray pipe, 8, a sandwich heat exchanger, 9 and an instrument control device.

Detailed Description

The biogas is efficiently and completely combusted in the torch barrel, high-temperature smoke is provided after passing through the fire blocking plate, the high-temperature smoke is injected by the desorption gas preheated by the interlayer heat exchanger through the spray pipe (the desorption gas is prevented from contacting with the open fire of the biogas), the desorption gas is fully mixed with the high-temperature smoke in the diffusion pipe and is rapidly combusted, and the desorption gas is discharged to the air after reaching the standard through pyrolysis.

Claims (1)

1. A burning desorption gas biogas torch is characterized in that: the device comprises a torch cylinder, a biogas burner, a contraction pipe, a fire-retardant plate, a connecting pipe, a diffusion pipe, a spray pipe, an interlayer heat exchanger and an instrument control device, wherein the torch cylinder, the biogas burner, the contraction pipe, the fire-retardant plate, the spray pipe and the connecting pipe form a closed combustion chamber, and the contraction pipe, the connecting pipe, the interlayer between the diffusion pipe and the torch cylinder is the interlayer heat exchanger.

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