CN201136867Y - A biogas collecting hood - Google Patents

Abstract

The utility model discloses a biogas gas collecting cover, which comprises a cover body and an air outlet. The bottom of the cover body is open and the upper part is bow-shaped. On the digester. The utility model has the advantages of simple structure, high gas production rate, safe and convenient use, and anti-vibration. It is not only suitable for the reconstruction of old ponds in rural areas, but also suitable for the transformation of sedimentation ponds downstairs in cities.

Description

A biogas collecting hood

Technical field:

The utility model belongs to the technical field of biogas, in particular to a biogas collecting hood.

Background technique:

At present, the application of biogas is being promoted in the vast rural areas of various countries, and good results have been achieved. It not only meets the needs of fuel and lighting, but also improves rural sanitation conditions and reduces the spread of diseases. Now the biogas digesters in rural areas are generally built underground, mainly composed of pond body, feed inlet, discharge outlet, movable cover, gas pipeline and other parts. This kind of biogas digester has high construction cost and occupies a large area. Although biogas pipes made of fiberglass are currently used in some areas, for most rural areas, the price is relatively high and it is difficult to popularize and apply them.

Invention content:

The purpose of the utility model is to provide a biogas collecting hood with simple structure, convenient installation and use.

The technical scheme adopted by the utility model is that the biogas collection cover includes a cover body and an air outlet, the bottom of the cover body is open, the upper part is bow-shaped, the bottom of the cover body has a frame towards the outer circumference, the gas outlet is located on the top of the cover body, and the cover body is buckled. on the digester.

The utility model has the beneficial effects of high gas production rate, no air leakage, anti-vibration, safe and convenient use, and because it is applied to ordinary pools, the construction cost is low and easy to popularize; it is not only suitable for the reconstruction of old pools in rural areas, It can also be applied to the transformation of the city's downstairs sedimentation tanks.

Description of drawings:

Fig. 1 is the structural representation of the biogas collecting hood of the utility model;

Fig. 2 is the A-A sectional view of the biogas collecting hood of the utility model shown in Fig. 1;

Fig. 3 is a schematic diagram of the application of the biogas collecting hood of the utility model.

Detailed ways:

As can be seen from the structural schematic diagram of the biogas collecting hood of the utility model shown in Fig. 1 and the A-A sectional view of Fig. 2, the biogas collecting hood of the utility model includes a cover body 2 and an air outlet 3, the bottom of the cover body 2 is open, and the upper part is in the shape of Arched, the cross-sectional shape of the cover body 2 can be made into square, circular or other shapes. The bottom of the cover body 2 has a frame 1 on the outer circumference, and the air outlet 3 is located on the top of the cover body 2, and the gas outlets such as lighting and gas appliances are externally connected from the air outlet 3. It can be seen from the application schematic diagram of the biogas collection cover of the utility model shown in Fig. 3 that the cover body 2 is buckled on the biogas pool 4, and the utility model can be slightly modified by using the pig raising or other pen pits in the countryside. The inboard of pit is piled up table top 5, just becomes the biogas digester that the utility model can utilize, and the frame 1 of cover body 2 circles is placed on the table top 5 of 4 circles of biogas ponds. The bottom of the biogas digester 4 is equipped with materials for preparing biogas, and the upper part is equipped with water, and the generated biogas passes through the water layer and enters the inside of the cover body 2 . In use, the joint between the frame 1 and the biogas tank table 5 is located below the water surface, which ensures the sealing of the biogas tank. When the pressure of the biogas stored in the cover body 2 increases, the water around the cover body 2 rises to form a water tank, making the interior Biogas does not leak.

The utility model is especially suitable for the transformation of old ponds in rural areas, and also applicable to the transformation of downstairs sedimentation ponds in cities, and can be made of various materials such as glass fiber reinforced plastics, plastics, steel and cement. The utility model has good sealing performance, convenient feeding and discharging, high gas production rate, low cost and easy acceptance by common people.

Claims (3)

1. A biogas collecting hood, comprising a cover body (2) and an air outlet (3), characterized in that: the bottom of the cover body (2) is open, the upper part is bow-shaped, and the bottom of the cover body (2) turns outward There is a frame (1), the air outlet (3) is located on the top of the cover body (2), and the cover body (2) is buckled on the biogas digester (4). 2. The biogas collecting hood according to claim 1, characterized in that: the frame (1) surrounding the cover (2) is placed on the table (5) inside the biogas pool (4). 3. The biogas collecting hood according to claim 1 or 2, characterized in that: the upper part of the biogas pit (4) is filled with water, and the joint between the frame (1) and the biogas pit table (5) is located below the water surface .

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