CN212091572U - Landfill gas purification device - Google Patents
Landfill gas purification device Download PDFInfo
- Publication number
- CN212091572U CN212091572U CN201922105644.8U CN201922105644U CN212091572U CN 212091572 U CN212091572 U CN 212091572U CN 201922105644 U CN201922105644 U CN 201922105644U CN 212091572 U CN212091572 U CN 212091572U
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- China
- Prior art keywords
- liquid
- tank
- landfill gas
- seal tank
- liquid seal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a landfill gas purification device, which comprises a liquid-sealed tank, wherein the side wall of the liquid-sealed tank is provided with an air inlet, and liquid which is not higher than the air inlet is filled in the liquid-sealed tank; the part of the air inlet in the tank is vertically bent downwards, and the pipe orifice is submerged below the liquid level; the top of the liquid seal tank is provided with a liquid injection port and an air outlet, and the liquid injection port is provided with an openable sealing cover; and the liquid seal tank is connected with the outlet of the fan, and the purified landfill gas is conveyed to the generator set or the combustion torch from the gas outlet. The technical proposal of the utility model can effectively prevent the occurrence of the backfire phenomenon. When landfill gas in the clean system or the combustion device fires along the pipeline, the liquid seal can block the propagation of flame along the gas collecting pipeline.
Description
Technical Field
The utility model relates to a landfill gas purifier belongs to the environmental protection technology field.
Background
In various utilization processes of landfill gas, purification of the landfill gas is involved, including particulate removal, dehydration and desulfurization, and in power generation processes, if any, siloxane-based materials should be removed. In the deep purification process, carbon dioxide and oxygen are also removed, and further a trace amount of water is removed.
The simple landfill gas purification process comprises a gas-water separator, an active iron oxide desulfurization tank, an active carbon purification tank and a negative pressure fan. And after being pumped out from the stack body, the landfill gas enters the purification system through the collection system. The negative pressure fan provides gas flow and power for passing through the purification unit, and landfill gas at the outlet of the fan can be sent to a landfill gas combustion torch or a generator set; however, in the process of feeding the landfill gas to the combustion, there is often an accident that the landfill gas fires along the pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a landfill gas purification device to solve prior art's above-mentioned technical problem.
The purpose of the utility model is realized by the following technical scheme.
A landfill gas purification device comprises a water-sealed tank, wherein the side wall of the liquid-sealed tank is provided with an air inlet, and liquid with the height not higher than that of the air inlet is filled in the liquid-sealed tank; the part of the air inlet in the tank is vertically bent downwards, and the pipe orifice is submerged below the liquid level; the top of the liquid seal tank is provided with a liquid injection port and an air outlet, and the liquid injection port is provided with an openable sealing cover; and the liquid seal tank is connected with the outlet of the fan, and the purified landfill gas is conveyed to the generator set or the combustion torch from the gas outlet.
The side wall of the liquid seal tank is provided with a liquid level meter above sea for monitoring the liquid level height of liquid in the liquid seal tank and injecting the liquid to a proper height through a liquid injection port arranged at the top of the liquid seal tank.
And the bottom of the liquid-sealed tank is provided with an emptying valve for discharging liquid in the tank body.
The bottom of the liquid seal tank is bucket-shaped, and the emptying valve is arranged at the lowest position of the bucket-shaped.
The technical proposal of the utility model can effectively prevent the occurrence of the backfire phenomenon. When landfill gas in the clean system or the combustion device fires along the pipeline, the liquid seal can block the propagation of flame along the gas collecting pipeline.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, 1-inlet; 2-liquid injection port; 3-air outlet; 4-a liquid level meter; 5-a vent valve.
Detailed Description
The structural features of the present invention will be further explained with reference to the following embodiments.
The landfill gas purification device shown in the figure 1 comprises a liquid-sealed tank, wherein a gas inlet is formed in the side wall of the liquid-sealed tank, and liquid which is not higher than the gas inlet is filled in the liquid-sealed tank; the part of the air inlet in the tank is vertically bent downwards, and the pipe orifice is submerged below the liquid level; the top of the liquid seal tank is provided with a liquid injection port and an air outlet, and the liquid injection port is provided with an openable sealing cover; and the liquid seal tank is connected with the outlet of the fan, and the purified landfill gas is conveyed to the generator set or the combustion torch from the gas outlet.
The side wall of the liquid seal tank is provided with a liquid level meter above sea for monitoring the liquid level height of liquid in the liquid seal tank and injecting the liquid to a proper height through a liquid injection port arranged at the top of the liquid seal tank.
And the bottom of the liquid-sealed tank is provided with an emptying valve for discharging liquid in the tank body.
The bottom of the liquid seal tank is bucket-shaped, and the emptying valve is arranged at the lowest position of the bucket-shaped.
During operation, combustible gas (such as landfill gas) enters the water at the bottom of the tank body through the inlet pipeline of the liquid seal tank, rises to the liquid level of the water seal tank from the water bottom, and is discharged from the outlet pipeline at the top of the water seal tank after certain pressure is formed in the space above the liquid level. When tempering occurs, the liquid in the tank naturally forms a barrier for blocking gas, thereby avoiding the continuous propagation of flame and protecting the safety of the gas collecting pipeline and the landfill body.
Claims (4)
1. A landfill gas purifier which characterized in that: the device comprises a liquid seal tank, wherein an air inlet is formed in the side wall of the liquid seal tank, and liquid with the height not higher than that of the air inlet is filled in the liquid seal tank; the part of the air inlet in the tank is vertically bent downwards, and the pipe orifice is submerged below the liquid level; the top of the liquid seal tank is provided with a liquid injection port and an air outlet, and the liquid injection port is provided with an openable sealing cover; and the liquid seal tank is connected with the outlet of the fan, and the purified landfill gas is conveyed to the generator set or the combustion torch from the gas outlet.
2. The landfill gas purifying device of claim 1, wherein: the side wall of the liquid seal tank is also provided with a liquid level meter for monitoring the liquid level height of liquid in the liquid seal tank and injecting the liquid to a proper height through a liquid injection port arranged at the top of the liquid seal tank.
3. The landfill gas purifying device of claim 1, wherein: and the bottom of the liquid-sealed tank is provided with an emptying valve for discharging liquid in the tank body.
4. A landfill gas purification device according to claim 3, wherein: the bottom of the liquid seal tank is bucket-shaped, and the emptying valve is arranged at the lowest position of the bucket-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105644.8U CN212091572U (en) | 2019-11-29 | 2019-11-29 | Landfill gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105644.8U CN212091572U (en) | 2019-11-29 | 2019-11-29 | Landfill gas purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212091572U true CN212091572U (en) | 2020-12-08 |
Family
ID=73619980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922105644.8U Active CN212091572U (en) | 2019-11-29 | 2019-11-29 | Landfill gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212091572U (en) |
-
2019
- 2019-11-29 CN CN201922105644.8U patent/CN212091572U/en active Active
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