CN220131998U - Improved UASB anaerobic reactor biogas collection device - Google Patents

Abstract

The utility model discloses an improved UASB anaerobic reactor methane collecting device, which comprises an anaerobic tank, a three-phase separator, a methane collecting pipe and an air outlet mother pipe, wherein the anaerobic tank is of a hollow structure, anaerobic sewage, the three-phase separator, the methane collecting pipe and the air outlet mother pipe are arranged in the anaerobic tank, one end of the air outlet mother pipe is fixed in the anaerobic tank and penetrates through the tank body of the anaerobic tank to be connected with the outside, the lower end of the methane collecting pipe is connected with the three-phase separator, the upper end of the methane collecting pipe is higher than the liquid level of the anaerobic sewage, and the port of the air outlet mother pipe is positioned above the liquid level of the anaerobic sewage.

Description

Improved UASB anaerobic reactor biogas collection device

Technical field

The utility model relates to a biogas collection system, in particular to a UASB anaerobic reactor biogas collection device that prevents scaling, incomplete gas-water separation, incomplete biogas collection and anaerobic sewage channeling.

Background technique

At present, UASB anaerobic reactors are widely used in the anaerobic reactors of waste incineration power plants and sewage treatment stations. The biogas collection system of the UASB anaerobic reactor collects through a three-phase separator. The three-phase separator is equipped with multiple biogas collection pipes and is finally collected into The same biogas main pipe is then connected to the water-sealed tank on the top of the anaerobic tank and is collected into the double-membrane biogas cabinet through a gas-water separator. This method of biogas collection will lead to anaerobic sewage channeling, scaling of the gas collecting main pipe, and failure to collect biogas. Incomplete, unstable anaerobic tank pressure and incomplete gas-water separator bring trouble to daily operations and increase operating costs.

Utility model content

In view of the deficiencies in the above technology, this utility model provides an improved UASB anaerobic reactor biogas collection device, which separates the three-phase separation gas collection pipe from the gas outlet main pipe, and separates each three-phase separator biogas collection pipe separately. And above the water surface, the biogas in the three-phase separator gas collecting pipe and the biogas not collected by the three-phase separator are uniformly collected at the top of the anaerobic tank, forming an integral gas collecting chamber above the water surface inside the anaerobic tank, realizing the anaerobic tank All biogas collected.

In order to achieve the above purpose, the utility model provides an improved UASB anaerobic reactor biogas collection device, which includes an anaerobic tank, a three-phase separator, a biogas collection pipe and a gas outlet main pipe. The anaerobic tank is a hollow structure with an internal It is equipped with anaerobic sewage, a three-phase separator, a biogas collection pipe and a gas outlet main pipe. One end of the gas outlet main pipe is fixed in the anaerobic tank and is connected to the outside through the tank body of the anaerobic tank. The lower end of the biogas collection pipe is connected to the three-phase separator, the upper end of the biogas collection pipe is higher than the liquid level of the anaerobic sewage, and the port of the gas outlet main pipe is located above the liquid level of the anaerobic sewage.

Preferably, the biogas collection pipe is a telescopic structure, including a first collection pipe, a second collection pipe and a third collection pipe. The second collection pipe is a folded hose structure, and the two ends of the second collection pipe are respectively connected with The first collection pipe is connected to the third collection pipe, one end of the first collection pipe is connected to the three-phase separator, and the third separation pipe is provided with a suspension ball.

Preferably, the suspended ball has a spherical-like structure, with a cavity structure in the middle, and a through hole is opened on the upper surface of the suspended ball for the third collection tube to pass through.

Preferably, a drainage outlet is provided on the side of the anaerobic tank, the drainage outlet is located at the bottom of the anaerobic tank, and a valve is provided on the drainage outlet.

Preferably, the anaerobic tank is further provided with a condensing device, and the condensing device is attached to the upper surface of the anaerobic tank.

The beneficial effects of the utility model are: compared with the existing technology, the improved UASB anaerobic reactor biogas collection device provided by the utility model can prevent biogas pipeline scaling, incomplete gas-water separation, incomplete biogas collection and sewage The channeling biogas collection system separates the connection between the three-phase separator biogas pipe and the biogas outlet main pipe, effectively preventing part of the anaerobic sewage from flowing directly from the biogas collection pipe to the water seal under the action of the micro-pressure of the anaerobic tank. tank, which solves the problem of inorganic salt scaling in pipelines and achieves complete separation of gas and water. At the same time, an integral gas collection chamber is formed above the water surface inside the anaerobic tank to unify the biogas in the gas collecting pipe of the three-phase separator and the biogas not collected by the three-phase separator. Collected at the top of the anaerobic tank, preliminary condensation is achieved on the outer wall of the anaerobic tank, which reduces the moisture content of the biogas and has the effect of separating the micro-particles in the biogas.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is an enlarged view of part of the structure of the utility model.

The main component symbols are explained as follows:

1. Anaerobic tank 2. Three-phase separator 3. Biogas collection pipe 4. Anaerobic sewage 5. Suspended ball

6. Outlet main pipe.

Detailed ways

In order to describe the present utility model more clearly, the present utility model is further described below in conjunction with the accompanying drawings. Of course, the protection scope of the present utility model is not limited to this. Simple substitutions made by those skilled in the art without exerting creative efforts are All fall within the protection scope of this application.

Please refer to Figures 1 and 2. This utility model provides an improved UASB anaerobic reactor biogas collection device, including an anaerobic tank 1, a three-phase separator 2, a biogas collection pipe 3 and an outlet main pipe 6. The anaerobic tank 1 is a hollow structure with anaerobic sewage 4, three-phase separator 2, biogas collection pipe 3 and gas outlet main pipe 6 inside. One end of the gas outlet main pipe 6 is fixed in the anaerobic tank 1 and passes through the anaerobic tank 1. The tank is connected to the outside, the lower end of the biogas collection pipe 3 is connected to the three-phase separator 2, the upper end of the biogas collection pipe 3 is higher than the liquid level of the anaerobic sewage 4, and the port of the outlet main pipe 6 is located at the anaerobic sewage 4 above the liquid level. In this embodiment, since the biogas obtained through the three-phase separator will contain a lot of water, if it is collected directly, equipment such as biogas tanks will be corroded. Therefore, it is necessary to reduce the water content in the biogas. This application makes the gas The top of the collection pipe is not connected to the gas outlet main pipe, thereby forming an integral gas collecting chamber above the water surface inside the anaerobic tank, and then related condensation is performed, so that the water vapor contained in the biogas is condensed into liquid, and the biogas passes through the gas outlet main pipe is collected, effectively reducing the water content in the biogas.

In order to achieve the above purpose, the biogas collection pipe 3 has a telescopic structure, including a first collection pipe 31, a second collection pipe 32 and a third collection pipe 33. The second collection pipe 32 has a folding hose structure. Both ends are connected to the first collection pipe 31 and the third collection pipe 33 respectively. One end of the first collection pipe 31 is connected to the three-phase separator 2. The third collection pipe 33 is provided with a suspension ball 5. The floating ball 5 has a spherical-like structure with a cavity structure in the middle. The floating ball 5 is provided with a through hole for the third collection tube 33 to pass through. In this embodiment, since the water vapor in the biogas will produce water droplets during the condensation process, and liquid will also be discharged from the three-phase separator, the liquid level in the anaerobic tank will continue to rise. If the liquid level is higher than the biogas The height of the collection pipe will cause liquid perfusion and block the biogas collection pipe, so that the biogas cannot be collected. In order to avoid this situation, a suspension ball is specially installed. The suspension ball floats above the liquid surface and follows the liquid. It changes with the change of the height of the liquid surface, thereby driving the third collection pipe to move with the liquid level, and the second collection pipe has a folded hose structure, which facilitates the entire biogas collection pipe to change with the change of the liquid level, and prevents the liquid from entering the biogas inside the collection tube.

There is a drainage outlet on the side of the anaerobic tank 1, and the drainage outlet is located at the bottom of the anaerobic tank 1. There is a valve on the drainage outlet; the anaerobic tank 1 is also equipped with a condensation device, and the condensation device is attached to the upper end of the anaerobic tank. surface. In this embodiment, a drainage outlet is provided to effectively discharge the anaerobic sewage in the anaerobic tank to avoid the impact of excessive liquid level on the collection of biogas. The condensing device is a refrigeration device, thereby reducing the water vapor in the biogas. When it encounters the inner wall of the upper part of the anaerobic tank, it can condense into liquid, thus achieving the effect of reducing the moisture in the biogas.

What is disclosed above are only a few specific embodiments of the present invention, but the present invention is not limited thereto. Any changes that those skilled in the art can think of should fall within the protection scope of the present invention.

Claims (5)

1. The utility model provides an improved generation UASB anaerobic reactor marsh gas collection device, its characterized in that, includes anaerobic tank, three-phase separator, marsh gas collecting pipe and the mother's pipe of giving vent to anger, the anaerobic tank is hollow structure, inside is equipped with anaerobic sewage, three-phase separator, marsh gas collecting pipe and gives vent to anger the mother's pipe, the one end of giving vent to anger the mother's pipe is fixed in the anaerobic tank, and passes the jar body of anaerobic tank is connected with the outside, the lower extreme of marsh gas collecting pipe with three-phase separator is connected, and the upper end of marsh gas collecting pipe is higher than the liquid level of anaerobic sewage, the port of giving vent to anger the mother's pipe is located above the liquid level of anaerobic sewage.

2. The improved UASB anaerobic reactor biogas collecting device according to claim 1, wherein the biogas collecting pipe is of a telescopic structure and comprises a first collecting pipe, a second collecting pipe and a third collecting pipe, the second collecting pipe is of a folding hose structure, two ends of the second collecting pipe are respectively connected with the first collecting pipe and the third collecting pipe, one end of the first collecting pipe is connected with the three-phase separator, and a suspension ball is arranged on the third collecting pipe.

3. The improved UASB anaerobic reactor biogas collection device according to claim 2, wherein the suspension ball has a sphere-like structure, the middle part has a containing cavity structure, and the suspension ball is provided with a through hole for the third collecting pipe to pass through.

4. The improved UASB anaerobic reactor biogas collection device according to claim 1, wherein the side of the anaerobic tank is provided with a drain outlet, the drain outlet is positioned at the bottom of the anaerobic tank, and the drain outlet is provided with a valve.

5. The improved UASB anaerobic reactor biogas collection device according to claim 1, wherein the anaerobic tank is further provided with a condensing device, and the condensing device is attached to the upper end surface of the anaerobic tank.