CN201309930Y - Methane tank - Google Patents

Abstract

The utility model proposes a biogas digester, which includes a cement and stone biogas digester and a top cover, and the cement and stone biogas digester includes a feed port and a discharge port; it is characterized in that the top cover is made of light materials The outer diameter of the top cover is adapted to the inner diameter of the cement stone biogas digester so that the top cover can float in the cement stone biogas digester; the top of the top cover has a biogas outlet. The biogas pit proposed by the utility model uses a light top cover to replace the existing top cover made of cement and stone, so that the top cover can float in the biogas pit. The top cover made in this way has low manufacturing cost, is not easily damaged, and is easy to replace once damaged.

Description

a digester

technical field

The utility model relates to a methane pool.

Background technique

In the 1960s, the construction and use technology of rural household biogas digesters was developed. Until today, the country still advocates to promote the modification and use of biogas digesters. Existing biogas digesters are usually a buried or semi-buried cement stone biogas digester, and the top of the biogas digester gas chamber is made of cement stone. This kind of biogas digester has a high cost and is easily damaged during use. This is because biogas is a kind of methane gas. At present, the top of the gas chamber of the biogas digester is made of cement and stone, which is very easy to cause gas leakage. Once the air chamber leaks, it is difficult to repair. Once a gas leak occurs in a rural household biogas digester, the biogas digester will be scrapped. This is also a direct and the most important reason why the biogas digester is not easy to promote in rural areas.

Utility model content

Aiming at the defects and deficiencies in the prior art, the purpose of this utility model is to propose a biogas digester, which can not only have the functions of the existing biogas digesters, but also solve the problem that the top of the existing biogas digesters is easily damaged.

In order to achieve the above object, the utility model proposes a biogas digester, including a cement stone type biogas digester and a top cover, and the cement stone type biogas digester includes a feed port and a discharge port; it is characterized in that the top cover is made of Made of lightweight materials; the outer diameter of the top cover is adapted to the inner diameter of the cement stone biogas digester so that the top cover can float in the cement stone biogas digester; the top of the top cover has a biogas outlet .

As a preference of the above technical solution, the top cover is made of plastic.

As a preference of the above technical solution, the feed inlet is connected with a feed pipe, and the top of the feed pipe is higher than the top of the cement stone biogas digester.

The utility model proposes a biogas digester, which includes a cement and stone biogas digester and a top cover, and the cement and stone biogas digester includes a feed port and a discharge port; it is characterized in that the top cover is made of light materials The outer diameter of the top cover is adapted to the inner diameter of the cement stone biogas digester so that the top cover can float in the cement stone biogas digester; the top of the top cover has a biogas outlet. The biogas pit proposed by the utility model uses a light top cover to replace the existing top cover made of cement and stone, so that the top cover can float in the biogas pit. The top cover made in this way has low manufacturing cost, is not easily damaged, and is easy to replace once damaged.

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described in further detail. The above and other objects, features and advantages of the present invention will be apparent to those skilled in the art from the detailed description of the present invention.

Description of drawings

Fig. 1 is the biogas digester structure schematic diagram that the utility model proposes;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a schematic sectional view taken along the line A-A of Fig. 2;

Reference signs: 1. Top cover 2. Digester 3. Feeding port 4. Discharging port

5. Air outlet 6. Feed pipe 7. Top of feed pipe.

Detailed ways

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

The preferred embodiment of the present utility model is shown in Fig. 1, Fig. 2, Fig. 3, comprises cement stone material type biogas tank 2 and top cover 1, and described cement stone material type biogas tank 2 comprises feed inlet 3 and discharge port 4; The top cover 1 is made of lightweight materials; the outer diameter of the top cover 1 is adapted to the inner diameter of the cement stone biogas digester 2 so that the top cover 1 can float in the cement stone biogas digester 2; The top of the top cover 1 has a biogas outlet 5 .

Wherein, the top cover is made of plastic. Certainly also can be made of other materials such as foam plastics, as long as material is lighter and can float in the biogas digester 2 and get final product. The feed port 3 is connected with a feed pipe 6, the top 7 of the feed pipe 6 is higher than the top of the cement and stone biogas digester 2, and the discharge port 4 is located at the bottom of the cement and stone biogas digester 2, and its The height is lower than the feeding port 3.

Of course, the utility model also has other embodiments. Without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformations according to the utility model, but these corresponding All changes and deformations should belong to the protection scope of the claims of the present utility model.

Claims (4)

1, a kind of methane-generating pit comprises cement building stones formula methane-generating pit and top cover, and described cement building stones formula methane-generating pit comprises opening for feed and discharge port; It is characterized in that described top cover is made by light material; Suitable so that the described top cover of described top cover external diameter and described cement building stones formula methane-generating pit internal diameter can float in the described cement building stones formula methane-generating pit; Described top cover top has the biogas air outlet.

2, methane-generating pit according to claim 1 is characterized in that, described top cover is that plastics are made.

3, methane-generating pit according to claim 1 and 2 is characterized in that, described opening for feed is connected with feed-pipe, and described feed-pipe top is higher than described cement building stones formula methane-generating pit top.

4, methane-generating pit according to claim 1 and 2 is characterized in that, described discharge port is located at the methane-generating pit bottom, and described discharge port height is lower than described opening for feed.

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