CN207391364U - Anaerobic methane gas-liquid separation purifier - Google Patents

Abstract

The utility model discloses a kind of anaerobic methane gas-liquid separation purifiers, it includes housing, is from top to bottom equipped with impurity removal area, cloth air cavity, gas-liquid separation zone successively in housing, cloth air cavity is located at middle part and separates in impurity removal area with gas-liquid separation zone；The bottom of housing is equipped with return duct, and the top of housing is equipped with air outlet pipe；The lower part of housing is equipped with and is passed through gas-liquid separation zone and forms tangent gas-liquid air inlet pipe with housing；The bottom of cloth air cavity is equipped with the communicating pipe for stretching into gas-liquid separation zone, and the top of cloth air cavity is equipped with the several gas distribution pipes being connected with communicating pipe, and impurity removal area is stretched into the upper end of gas distribution pipe, and is furnished with water seal cover in port；The demister being equipped with above impurity removal area below air outlet pipe, bottom are provided with blow-off pipe.The utility model can make the biogas of collection realize gas-liquid separation, and purification efficiency is high, and reduce the maintenance of subsequent technique pipe-line equipment and operating cost.

Description

Anaerobic biogas gas-liquid separation and purification device

technical field

The utility model relates to a fully mixed anaerobic fermentation treatment device for organic solid waste, in particular to an anaerobic biogas gas-liquid separation and purification device for dehydration, impurity removal and purification treatment of biogas generated during biological treatment of organic solid waste.

Background technique

Anaerobic fermentation treatment of organic solid waste is a relatively mature treatment technology. The biggest advantage of this process technology is that it can generate biogas, which can be used for power generation, heat supply, etc., and realize efficient energy recovery and utilization. Since the organic solid waste usually adopts a medium-high temperature anaerobic fermentation process, the generated biogas tends to carry a large amount of water vapor and solid particulate impurities. When it enters the subsequent pipeline, it gradually decreases with the temperature, resulting in a large amount of impurity-containing condensation in the pipeline. Water, causing pipe blockage and damage to related equipment, especially in the process of anaerobic fermentation of high-solid, high-viscosity organic solid waste. Normally, a gas-liquid separation device is installed to separate the gas from the biogas during the output process of the biogas produced by the anaerobic fermentation equipment. The existing gas-liquid separation device is usually used in the reaction device for anaerobic treatment of wastewater, and is generally connected with the riser of the three-phase separator. It is generally not installed in the anaerobic fermentation device for high solid content and high viscosity organic solid waste treatment. Therefore, the three-phase separator cannot make full use of the gas-liquid separation device to effectively separate and purify the gas-liquid of biogas, which will easily cause blockage of subsequent pipelines and damage to equipment, and increase maintenance and operation costs.

Utility model content

The technical problem to be solved by the utility model is to provide an anaerobic biogas gas-liquid separation and purification device suitable for high solid content and high viscosity organic solid waste anaerobic fermentation device, so that the collected biogas can achieve gas-liquid separation and purification efficiency High, while reducing the maintenance and operation costs of subsequent pipeline equipment.

The utility model solves the above technical problems with the following technical solutions:

The utility model of anaerobic biogas gas-liquid separation and purification device includes a shell, in which an impurity removal area, an air distribution chamber, and a gas-liquid separation area are sequentially arranged from top to bottom, the air distribution chamber is located in the middle and the impurity removal area Separated from the gas-liquid separation area; the bottom of the shell is provided with a return pipe, and the top of the shell is provided with an air outlet pipe; the lower part of the shell is provided with a gas-liquid inlet that leads into the gas-liquid separation area and forms a tangent to the shell Air pipe; the bottom of the air distribution chamber is provided with a connecting pipe extending into the gas-liquid separation area, the upper part of the air distribution chamber is provided with several air distribution pipes connected with the connecting pipe, the upper end of the air distribution pipe extends into the impurity removal area, and The port is equipped with a water seal cover; the impurity removal area is equipped with a mist eliminator located below the outlet pipe, and a sewage pipe is installed at the bottom.

The side of the impurity removal area of the utility model is provided with a water level gauge and a liquid alkali adding pipe installed outside the shell.

The upper and lower ends of the housing in the utility model are in a symmetrical tapered structure.

The opening of the lower end of the connecting pipe of the utility model is an oblique cut, and is located below the horizontal position of the gas-liquid inlet pipe, and the opening direction faces away from the mouth of the gas-liquid inlet pipe.

A plurality of baffles are arranged inside the connecting pipe of the utility model.

The gas distribution pipes of the utility model are symmetrically distributed according to the center.

The inside of the mist eliminator described in the utility model is provided with a broken-line type two-channel polypropylene material with a hooked corrugated plate.

The utility model has the following beneficial effects:

1. The utility model sets up the structure of the gas-liquid separation area, the gas distribution chamber and the impurity removal area reasonably arranged, so that the gas-liquid mixed gas realizes the effective combination of physical separation and chemical purification, achieves efficient gas-liquid separation and purification, and reduces the mixed gas Impurities in the pipeline can cause blockage and equipment damage, thereby reducing maintenance and operating costs.

2. The utility model adopts a multi-point uniform gas distribution method to increase the gas purification rate to more than 90%, and reduce the operating cost of the gas subsequent treatment process.

3. The waste water containing solid particulate impurities produced in the gas-liquid separation area of the utility model can be directly returned to the anaerobic device to continue the reaction, and the biogas production capacity of the material can be increased.

4. The utility model sets an oblique cut below the horizontal position of the gas-liquid inlet pipe at the lower end of the connecting pipe, and a baffle plate is installed inside the connecting pipe, which can effectively prevent the vortex from the gas swirl from taking away the impurity-containing waste water at the bottom, and improve the Gas-liquid separation effect.

5. The mist eliminator of the utility model adopts a broken-line two-channel polypropylene material with a hook corrugated plate, which has strong corrosion resistance, and further separates fine liquids in the gas to improve the gas-liquid separation effect.

Description of drawings

Fig. 1 is a structural schematic diagram of an anaerobic biogas gas-liquid separation and purification device of the utility model.

Fig. 2 is a schematic cross-sectional view along the line A-A of Fig. 1 .

Fig. 3 is a schematic diagram of the internal structure of the demister in Fig. 1 .

In the figure: housing 1, gas-liquid inlet pipe 2, return pipe 3, connecting pipe 4, baffle plate 5, air distribution chamber 6, air distribution pipe 7, water seal cover 8, demister 9, air outlet pipe 10, liquid Alkali addition pipe 11, sewage pipe 12, support feet 13, water level gauge 14, gas-liquid separation area 15, impurity removal area 16, broken line type two-channel corrugated plate 901 with hooks.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1 to 3, the utility model anaerobic biogas gas-liquid separation and purification device includes a housing 1, a gas-liquid inlet pipe 2, a return pipe 3, a connecting pipe 4, a baffle plate 5, an air distribution chamber 6, Air distribution pipe 7, water seal cover 8, mist eliminator 9, air outlet pipe 10, liquid caustic soda addition pipe 11, sewage pipe 12, support feet 13, water level gauge 14, gas-liquid separation area 15, and impurity removal area 16. The upper and lower ends of the housing 1 are symmetrical conical structures, the top of the housing 1 is provided with an air outlet pipe 10, the bottom is provided with a return pipe 3 and several supporting feet 13 for supporting the housing 1 are installed. The impurity removal area 16, the air distribution chamber 6, and the gas-liquid separation area 15 are set in the housing 1 in sequence from top to bottom, the air distribution chamber 6 is located in the middle and separates the impurity removal area 16 from the gas-liquid separation area 15; The lower right side of the body 1 is provided with a gas-liquid inlet pipe 2 that leads into the gas-liquid separation zone 15 and forms a tangent with the housing 1; Pipe 4, the opening of the lower end of the connecting pipe 4 is an oblique cut, and is located below the horizontal line of the gas-liquid inlet pipe 2, and the opening direction faces away from the mouth of the gas-liquid inlet pipe 2, and there are multiple baffles arranged in the pipe of the connecting pipe 4 5. The upper part of the air distribution chamber 6 is provided with seven centrally symmetrical air distribution pipes 7 connected with the communication pipe 4. The upper end of the air distribution pipe 7 extends into the impurity removal area 16, and a water seal cover is provided at the port 8; The top of the impurity removal area 16 is equipped with a mist eliminator 9 positioned at the bottom of the air outlet pipe 10, and the inside of the mist eliminator 9 is provided with a broken-line type two-channel polypropylene material with a hook wave plate 901, and the impurity removal area 16 A sewage pipe 12 is provided at the bottom; a water level gauge 14 and a liquid caustic addition pipe 11 are installed on the side of the impurity removal area 16 outside the casing.

When the utility model is in operation, the gas-liquid mixed gas enters the gas-liquid separation zone 15 from the gas-liquid inlet pipe 2, and after the water and solid particle impurities entrained in the gas are separated in the gas-liquid separation zone 15, the gas passes through the connecting pipe 4 Enter the air distribution chamber 6, and distribute the gas through the air distribution pipe 7 connected above the air distribution chamber 6. The gas comes out from the nozzle of the air distribution pipe 7 and is removed by the liquid alkali in the impurity removal area 16 through the action of the water seal cover 8. H ₂ S, CO ₂ and other impurity gases in the gas, the purified gas passes through the mist eliminator 9 to further remove the liquid alkali mist entrained in the purified gas, and finally outputs through the gas outlet pipe 10; the water separated by the gas-liquid separation zone 15 and solid particulate impurities are returned to the anaerobic reactor through the return pipe 3 to continue the reaction, increasing the amount of biogas produced by the material.

Claims (7)

1. An anaerobic biogas gas-liquid separation and purification device, comprising a housing (1), characterized in that, the housing (1) is sequentially provided with an impurity removal area (16), an air distribution chamber (6 ), the gas-liquid separation zone (15), the air distribution chamber (6) is located in the middle and separates the impurity removal zone (16) from the gas-liquid separation zone (15); the bottom of the housing (1) is provided with a return pipe ( 3), the top of the housing (1) is provided with an air outlet pipe (10); the bottom of the housing (1) is provided with a gas-liquid inlet pipe ( 2); the bottom of the air distribution chamber (6) is provided with a connecting pipe (4) extending into the gas-liquid separation zone (15), and the upper part of the air distribution chamber (6) is provided with several connecting pipes (4) connected to each other. The air distribution pipe (7), the upper end of the air distribution pipe (7) stretches into the impurity removal area (16), and is equipped with a water seal cover (8) at the port; 10) The bottom of the mist eliminator (9) is provided with a blowdown pipe (12). 2. The anaerobic biogas gas-liquid separation and purification device according to claim 1, characterized in that, the side of the impurity removal zone (16) is provided with a water level gauge (14) installed on the housing and a liquid alkali adding tube (11). 3. The anaerobic biogas gas-liquid separation and purification device according to claim 1 or 2, characterized in that, the upper and lower ends of the housing (1) have a symmetrical conical structure. 4. The anaerobic biogas gas-liquid separation and purification device according to claim 1 or 2, characterized in that, the lower end opening of the connecting pipe is an oblique cut, and is located below the horizontal line of the gas-liquid inlet pipe, and the opening direction faces away from Gas-liquid inlet pipe port. 5. The anaerobic biogas gas-liquid separation and purification device according to claim 1 or 2, wherein a plurality of baffles are arranged inside the communicating pipe. 6. The anaerobic biogas gas-liquid separation and purification device according to claim 1 or 2, characterized in that the air distribution pipes are distributed symmetrically about the center. 7. The anaerobic biogas gas-liquid separation and purification device according to claim 1 or 2, characterized in that, the inside of the demister is provided with a broken-line type two-channel polypropylene material with a hooked corrugated plate.