CN-224226961-U - High-efficiency biogas power generation front purification device

Abstract

The utility model relates to the technical field of biogas power generation and discloses a high-efficiency biogas power generation pre-purification device which comprises a primary mixing pipe, wherein the top end of the primary mixing pipe is communicated with a secondary mixing tower, the air inlet end of the primary mixing pipe is communicated with an air inlet pipe, the liquid inlet end of the primary mixing pipe is communicated with a liquid inlet pipe, the air inlet pipe and the liquid inlet pipe are both close to the bottom end of the primary mixing pipe, a mounting column is fixedly arranged in the primary mixing pipe, desulfurized biogas is discharged into a power generation system from a first purifying gas pipe, a desulfurized solvent flows into a cyclone separator from a second purifying gas pipe, the biogas is separated and mixed in the cyclone separator, the desulfurized solvent is discharged into an aeration tank from the second purifying gas pipe, and the biogas and the desulfurized solvent are all flowing in the whole process, that is to say, the desulfurized solvent participating in desulfurization can be updated all the time, and further the desulfurization purification of the biogas is ensured.

Inventors

• LI CHAOFENG
• LI XIA
• ZHAN LIGANG

Assignees

• 江西正合环保工程有限公司

Dates

Publication Date

20260512

Application Date

20250610

Claims (6)

1. 1. The utility model provides a purification device before high-efficient marsh gas electricity generation, includes one-level hybrid tube (3), its characterized in that, the top intercommunication of one-level hybrid tube (3) has second grade mixing tower (4), the inlet end intercommunication of one-level hybrid tube (3) has intake pipe (1), the feed liquor end intercommunication of one-level hybrid tube (3) has feed liquor pipe (2), intake pipe (1), feed liquor pipe (2) all are close to the bottom of one-level hybrid tube (3), fixed mounting has erection column (9) in one-level hybrid tube (3), the outer wall fixed mounting of erection column (9) has circulation blade (10), circulation blade (10) follow down upwards spiral distribution, be provided with rabbling mechanism (11) in second grade mixing tower (4), the feed liquor end intercommunication of second grade mixing tower (4) has purifying air pipe one (5), the feed liquor end intercommunication of second grade mixing tower (4) has drain pipe (6), the right-hand member of drain pipe (6) and cyclone (7) input end intercommunication, cyclone (7) have cyclone (18) to stretch out in cyclone (7) the drain pipe (18), cyclone (18) drain pipe (7) are kept away from.
2. 2. The efficient biogas power generation pre-purification device according to claim 1 is characterized in that a fluid booster pump (20) is arranged at the communication position of the air inlet pipe (1) and the liquid inlet pipe (2) and the primary mixing pipe (3).
3. 3. The efficient biogas power generation pre-purification device according to claim 1, wherein the stirring mechanism (11) comprises a motor (1101), the motor (1101) is fixedly arranged at the top of the secondary mixing tower (4), a rotating shaft (1102) is fixedly arranged at the output end of the motor (1101), tower-shaped stirring blades (1103) are fixedly arranged on the outer wall of the rotating shaft (1102), and the tower-shaped stirring blades (1103) are positioned in the secondary mixing tower (4).
4. 4. A high-efficiency biogas power generation pre-purification device according to claim 3 is characterized in that a sealing cover (16) is covered outside the motor (1101), the sealing cover (16) is fixedly arranged at the top of the secondary mixing tower (4), and the rotating shaft (1102) penetrates through the top of the secondary mixing tower (4) through a sealing bearing (17).
5. 5. The efficient biogas power generation pre-purification device according to claim 3, wherein a first installation ring (12) is fixedly installed at the bottom end of the rotating shaft (1102), a second installation ring (14) is fixedly installed at the top end of the installation column (9), a rotating scattering sheet (13) is fixedly installed on the outer wall of the first installation ring (12), and a fixed scattering sheet (15) is fixedly installed on the outer wall of the second installation ring (14).
6. 6. The efficient biogas power generation front purification device according to claim 1, wherein the liquid discharge pipe (18) is in a shape like a Chinese character 'ji', and a conveying pump (21) is arranged at the position where the liquid discharge pipe (18) is communicated with the liquid outlet end of the cyclone separator (7).

Description

High-efficiency biogas power generation front purification device Technical Field The utility model relates to the technical field of biogas power generation, in particular to a high-efficiency biogas power generation pre-purification device. Background The biogas power generation purification equipment mainly conveys biogas fermented in a biogas fermentation tank to the purification equipment, the purification equipment can chemically absorb sulfur dioxide in the biogas and other substances which do not utilize combustion of the biogas through an internal desulfurization purifying agent, so that the purified biogas can reach the standard of combustion utilization, but the biogas power generation purification equipment, particularly the biogas purification tank, needs to convey the biogas to a desulfurization solvent in the tank body when the biogas is subjected to desulfurization purification treatment, the desulfurization solvent can chemically absorb sulfur dioxide in the biogas, finally the purified biogas contains little or no sulfur dioxide, but the biogas is directly conveyed to the desulfurization solvent, so that large bubbles are generated when the biogas floats upwards in the solvent, and the biogas cannot fully contact with the desulfurization solvent, so that a large amount of sulfur dioxide is still contained in the purified biogas, and most of the biogas power generation purification equipment can purify the biogas by stirring the desulfurization solvent at the same time. Disclosure of utility model The utility model aims to provide a high-efficiency biogas purification device before power generation, so as to solve the problems in the background technology. The technical scheme is that the efficient biogas power generation front purification device comprises a primary mixing pipe, wherein the top end of the primary mixing pipe is communicated with a secondary mixing tower, the air inlet end of the primary mixing pipe is communicated with an air inlet pipe, the liquid inlet end of the primary mixing pipe is communicated with a liquid inlet pipe, the air inlet pipe and the liquid inlet pipe are both close to the bottom end of the primary mixing pipe, a mounting column is fixedly arranged in the primary mixing pipe, circulating blades are fixedly arranged on the outer wall of the mounting column, the circulating blades are distributed from bottom to top in a spiral mode, a stirring mechanism is arranged in the secondary mixing tower, the air outlet end of the secondary mixing tower is communicated with a first purification air pipe, the liquid outlet end of the secondary mixing tower is communicated with a liquid outlet pipe, the right end of the liquid outlet pipe is communicated with the input end of a cyclone separator, the air outlet end of the cyclone separator is communicated with a second purification air pipe, and one end of the cyclone separator, which is far away from the cyclone separator, extends into an aeration tank. Further, a fluid booster pump is arranged at the communication position of the air inlet pipe, the liquid inlet pipe and the primary mixing pipe. Further, the stirring mechanism comprises a motor, the motor is fixedly arranged at the top of the secondary mixing tower, a rotating shaft is fixedly arranged at the output end of the motor, tower-shaped stirring blades are fixedly arranged on the outer wall of the rotating shaft, and the tower-shaped stirring blades are positioned in the secondary mixing tower. Further, the outside of motor is covered with the sealed cowling, sealed cowling fixed mounting is at the top of second grade mixing tower, the pivot passes the top of second grade mixing tower through sealed bearing. Further, the bottom fixed mounting of pivot has collar one, and the top fixed mounting of erection column has collar two, the outer wall fixed mounting of collar one has the piece of breaking up of rotation, the outer wall fixed mounting of collar two has the piece of breaking up of fixing. Further, the liquid discharge pipe is in a shape like a Chinese character 'ji', and a conveying pump is arranged at the communicating part of the liquid discharge pipe and the liquid outlet end of the cyclone separator. Compared with the prior art, the utility model has the beneficial effects that: 1. Introducing methane and a desulfurization solvent into the primary mixing pipe through the air inlet pipe and the liquid inlet pipe, so that the methane and the desulfurization solvent flow simultaneously, circulating the methane and the desulfurization solvent in the flowing process by using the circulating blades, so that the methane and the desulfurization solvent are primarily mixed, and then enter the secondary mixing tower for secondary mixing, and full desulfurization of the methane is realized; 2. the desulfurized biogas is discharged into the power generation system from the first purifying gas pipe, the desulfurized solvent flows into the cyclone separator fr