CN201343534Y - Marsh gas generator with top-mounted hydraulic room - Google Patents

Abstract

A top-mounted water pressure room biogas generator, consisting of a fermentation tank main body (1), a water pressure room (2), a feed tank (3), a feed pipe (4), a fertilizer storage tank (5), and a gas delivery nozzle (6), composed of the main switch well (7), the main body of the fermentation tank (1) and the water pressure room (2) are connected by the discharge hole (8), the main body of the fermentation tank (1) and the feed tank (3) The room is connected by the feed hole (9), the main body of the fermentation tank (1) and the gas pipeline have an air hole (10), and the water pressure room (2) and the fertilizer storage tank (5) are connected by an overflow hole (11). connect. The upper edge of the discharge hole (8) is the water injection line (12), and the lower edge of the top of the feed pipe (4) is the starting line (13). This structural form improves the mechanical characteristics of the biogas generator in the soil, avoids the deformation and fracture of the inlet and outlet pipes due to the settlement of the pool body, increases the fertilizer storage tank to stabilize the total liquid in the pool, and avoids the pressure change in the pool due to fertilizer extraction. The number of openings on the tank body is reduced, the chance of air leakage is reduced, and the overhead water pressure room, feed tank and fertilizer storage tank can reduce the overall floor area of the biogas tank.

Description

An overhead water pressure room biogas generator

Technical field:

The utility model relates to a biogas generator, which relates to the technical field of anaerobic fermentation and fermentation container design, and in particular provides a household type biogas generator of composite gelling material with an overhead water pressure room and a fertilizer storage tank.

Background technique:

The biogas generator is the key equipment of the household biogas system. The country has formulated technical standards for household biogas generators, such as "Standard Atlas of Household Biogas Dies GB4750-2002", "Operational Regulations for Household Biogas Dies Construction GB4752-2002" and "Specifications for Quality Inspection and Acceptance of Household Biogas Dies GB4751-2002" .

In engineering practice, people found that there are several problems in the current technical standards. First, the additional feed tank and water pressure room of the biogas digester occupy a large area. The main body of the biogas generator is separated from the water pressure room, and the weight difference is large, and the settlement displacement between the two will be different, which will cause the connecting pipe between the two to be subjected to shear force, and the inlet and outlet pipes are often dislocated due to settlement Or fracture phenomenon, resulting in the entire biogas system leakage. Third, there is no fertilizer storage tank in the current standard, so that when fertilizer is not used, the biogas slurry will flow out due to feeding, which not only loses a large amount of biogas fertilizer, but also pollutes the environment. However, when biogas fertilizer is used, the fertilizer is taken directly from the water pressure tank, resulting in a sudden reduction of fermentation raw materials in the biogas tank, which destroys the stability of fermentation operation. At the same time, due to the reduction of fermentation raw materials, the water sealing effect is poor, and biogas is prone to occur leakage. Fourth, in the current standard, there are three openings on the main body of the fermentation tank, the inlet and outlet nozzles and the manhole. Since the biogas generator is an airtight container, too many holes on the tank body will increase the technical difficulty of installation and construction. Once an air leak occurs, maintenance is also very difficult.

Utility model content:

In order to overcome the defects of the existing technical standards, the utility model provides a composite gelling material household biogas generator with an overhead water pressure room and a fertilizer storage tank.

The technical scheme adopted by the utility model to solve the technical problems is: a household type biogas generator of composite gelling material with an overhead water pressure room and a fertilizer storage tank, including the main body of the biogas fermentation tank, an overhead water pressure room, an overhead Feed tank, overhead fertilizer storage tank and main switch well. All parts are connected mechanically by means of cement and screws.

Description of drawings:

Accompanying drawing is the structure of the present utility model and the schematic diagram of internal connection relationship, Fig. 1 is a top view, and Fig. 2 is a sectional view.

In the accompanying drawings, 1. The main body of the fermentation tank, 2. The water pressure room, 3. The feed tank, 4. The feed pipe, 5. The fertilizer storage tank, 6. The gas delivery nozzle, 7. The main switch well, 8. The discharge Hole, 9. feed hole, 10. air delivery hole, 11. overflow hole, 12. water injection line, 13. start line.

Detailed ways:

The embodiments will be described in detail below in conjunction with the accompanying drawings.

The main body of the fermentation tank (1) in the accompanying drawings is a thin-shell structure container made of composite gelling material, which is used to store the raw materials for biogas fermentation and the biogas produced after fermentation; the water pressure room (2) is made of composite gelling material The thin-shell structure container is used to store the biogas liquid discharged due to the pressure change in the main fermentation tank, so as to maintain the biogas pressure in the main fermentation tank; the feed tank (3) is a thin-shell structure container made of composite gelling material, used It is used to put new fermentation raw materials into the main fermentation tank, and is also used to expand the volume of the water pressure room; the feed pipe (4) is a non-metallic pipe, which is the passage between the feed tank and the main fermentation tank, and the bottom edge of the upper end of the nozzle is The position of the starting line (13); the thin-shell structure container made of the composite gelling material of the fertilizer storage tank (5), which is used to store the biogas liquid flowing in from the overflow hole; the gas delivery nozzle (6) is the main fermentation tank and the delivery The connector of the gas pipeline is used to import the biogas in the main fermentation tank into the gas pipeline; the main switch well (7) is a thin shell structure container made of composite gelling material, which is used to accommodate the gas delivery nozzle and the main switch.

There is a discharge hole (8) on the side wall of the fermentation tank main body (1) for connecting the main fermentation tank and the water pressure, and the top of the discharge hole is the position of the water injection line (12); the feed hole (9) is used for The main fermentation tank and the feeding tank are connected; the air delivery hole (10) is used to communicate with the main fermentation tank and the gas delivery nozzle, and an overflow hole (11) is provided on the side wall of the water pressure room (2) to be used to communicate with the water pressure room and Fertilizer storage tank.

The utility model implementation steps are as follows:

1. Assemble, assemble the parts into a whole according to the drawings, and the connections between the parts are connected by cementing materials and structural parts;

2. Water injection, from the feed inlet to the water injection line 12, stop water injection when the discharge hole is observed to overflow;

3. Feeding, put in manure from the feed port until the liquid level rises to the start line 13, and the liquid level can be adjusted appropriately according to the type of manure (cattle, pig, chicken, others) and its TS index;

4. Fermentation, after several fermentation processes in Tianchi;

5. For gas production, the biogas pressure in the pond can be observed through the pipeline connected to the gas delivery nozzle and the pressure gauge.

The beneficial effects of the utility model:

1. Improve the force characteristics. However, the utility model puts the water pressure room, the feeding tank and the fertilizer storage tank on the top of the main body of the fermentation tank. The uneven settlement between the room, the feed tank and the main tank improves the stress mode of the tank body and prolongs the service life of the biogas tank.

2. Increase the fertilizer storage tank and improve the operation efficiency of the biogas tank. Because the liquid level in the water pressure room affects the air pressure in the fermentation tank, and then affects the pressure in front of the stove. When the fertilizer storage tank is set up, when the fertilizer is not used, the biogas slurry overflowing from the fermentation tank will fill the water pressure room, and will automatically flow into the fertilizer storage tank through the overflow hole, thus ensuring the balance of the total liquid between the main fermentation tank and the water pressure, that is The fertilizer source is stored, and environmental pollution is avoided. When the biogas fertilizer is used, the fertilizer is taken from the fertilizer storage tank, which will not affect the change of the liquid level in the hydraulic pressure room, which ensures the stability of the feed liquid in the biogas tank and facilitates the use of fertilizer.

3. Reduce the area occupied by the biogas digester. The current biogas digester water pressure room, feed tank and main fermentation tank are separated, which must occupy a very large area due to construction restrictions. The water pressure room and feed tank are placed on the top of the fermentation tank, which saves the land used for the water pressure tank and reduces the area occupied by the biogas tank.

4. Reduce the number of openings in the main fermentation tank, reducing the chance of air leakage. There is no manhole in the main fermentation tank, and the diameter of the feed hole is increased to 400mm, which is convenient for feeding and can also be used as a manhole if necessary.

Claims (1)

1. A kind of overhead water pressure house biogas generator, by fermentation vat main body (1), water pressure house (2), charging pond (3), feed-pipe (4), store up fertile pond (5), (6) are chewed in gas transmission, master switch well (7) is formed, and it is characterized in that: be connected by discharge hole (8) between fermentation vat main body (1) and the water pressure house (2), be connected by feed port (9) between fermentation vat main body (1) and charging pond (3), fermentation vat main body (1) has transfer port (10) with gas transmission line, is connected by overflow weir (11) between water pressure house (2) and the storage fertile pond (5), the upper edge of discharge hole (8) is water line (12), and the lower edge, top of feed-pipe (4) is a startup line (13).

Images