CN201416005Y - Internal top pressure spherical biogas digester - Google Patents

Abstract

The utility model relates to an inner top-pressure spherical biogas digester. The biogas digester is spherical, one side of the middle part is connected with a feed port, and the other side of the middle part is connected with a manure bucket through a fecal pump. The top of the biogas digester is provided with a pool mouth; There is a funnel-shaped water pressure room below the inner pool mouth; the top of the funnel-shaped water pressure room is connected to the wall of the biogas digester, and the bottom of the funnel-shaped water pressure room is connected to a connecting pipe, and the connecting pipe is symmetrically provided with flow holes. There is a movable cover inside the tube; the outside of the funnel-shaped hydraulic room is a fermentation room. The unique design of the funnel-shaped water pressure room has good thermal insulation. During the process of gas production and gas consumption, the continuous rise and fall of the biogas liquid level plays a role in continuously stirring and breaking the shell of the fermentation raw materials; it does not exist during gas consumption and gas production. The culvert pipe is blocked, which greatly improves the gas production and utilization rate of the biogas digester; the water pressure room divides the biogas digester into upper and lower layers on the top of the biogas digester, which is convenient for feeding, slag removal and maintenance personnel to enter and exit, avoiding safety hazards in maintenance work .

Description

Internal top pressure spherical biogas digester

technical field

The utility model relates to a spherical methane pool.

Background technique

my country is a large agricultural country. The development of rural biogas construction is beneficial to solving water pollution, developing and utilizing new energy, improving rural sanitation, improving the quality of rural life, promoting ecological agriculture, realizing agricultural efficiency, increasing farmers' income, and building a new socialist countryside. are of great significance. However, rural villagers build biogas digesters in every family, and there are practical problems such as difficulty in building biogas digesters due to lack of funds, difficulty in management and gas production due to lack of technology,

Contents of the invention

In order to solve the problems of difficult construction, management and gas production of biogas digesters in rural households, the utility model provides an internal top pressure spherical biogas digester suitable for factory production, commercial sales and market services.

The specific structural design scheme is as follows:

Internal top-pressure spherical biogas digester, including a biogas digester, one side of the biogas digester is connected to the feed port through the feed pipe, and the other side is connected to the excrement bucket through the feces pump. The top of the biogas digester is provided with a pool mouth, which is connected to Circulation pipe;

The biogas digester is spherical and consists of upper and lower hemispheres connected. There is a funnel-shaped water pressure room below the mouth of the inner top; the top of the funnel-shaped water pressure room is connected to the wall of the biogas digester, and the bottom of the funnel-shaped water pressure room It is connected with a communication pipe, and the communication pipe is symmetrically provided with a flow hole, and a movable cover is arranged in the pipe below the flow hole; the outside of the funnel-shaped water pressure room is a fermentation room.

The funnel in the funnel-shaped water pressure room is spherical, and the upper opening of the spherical funnel is connected to the wall of the biogas digester, and the lower end of the connecting pipe at the bottom is located on the pillar, and the lower end of the pillar is connected to the bottom of the biogas digester.

The inner diameter of the spherical biogas digester is 2500 mm; the diameter of the feed inlet is 600 mm, and the height is 300 mm; the diameter of the feed pipe is 300 mm; the diameter of the upper opening of the funnel-shaped hydraulic chamber is 1400 mm, and the height is 1000 mm; mm, height 400 mm; flow hole 260 mm.

The beneficial technical effect of the utility model is:

1. The appearance is simple and elegant, the structure is reasonable, the material is saved, and the force is uniform.

2. The unique design of the inner top water pressure room has good thermal insulation. During the process of gas production and gas consumption, the continuous rise and fall of the biogas liquid level plays a role in continuous stirring and breaking of the fermentation raw materials. There is no culvert pipe blockage during gas consumption and gas production, which greatly improves the gas production and utilization rate of the biogas digester.

3. The water pressure room divides the biogas digester into upper and lower layers at the top of the biogas digester, which is convenient for feeding, slag removal and maintenance personnel to enter and exit, and avoids safety hazards in maintenance work.

4. The bottom cover of the water pressure room is always closed, which avoids the loss of fermentation products in the tank. It can feed and stir when it is opened, which is very convenient.

5. The water pressure room at the top of the spherical pool has a large effective gas storage capacity. When 80% of the feed to the 8 cubic meter biogas digester is 80%, the total effective gas storage capacity is 1.9 cubic meters, and the utilization rate of the biogas digester is 100%.

6. The side overflow hole at the bottom of the water pressure room automatically vents outward when the gas is produced at a certain high pressure, effectively avoiding feces overflowing at the feed port and discharge port at high pressure, and ensuring the safety of the biogas tank and pipelines.

7. The simple design of the discharge port is only for the slag extractor and the excrement bin. It is firmly connected to the feed port and the main tank mouth, so the discharge is convenient and the circulation can be stirred freely.

8. All the exposed openings of the biogas digester do not need to be sealed, which is convenient and safe to use.

Description of drawings

Fig. 1 is a structural representation of the utility model,

FIG. 2 is a top view of FIG. 1 .

Detailed ways

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

Example:

Referring to Fig. 1 and Fig. 2, the internal top-pressure spherical biogas digester includes a spherical biogas digester 3, which is composed of upper and lower hemispheres connected. One side of the biogas digester 3 is connected to the feed port 1 through the feed pipe 2, and the other One side is connected to the excrement bucket 13 through the feces pump 12; the top of the biogas tank 3 is provided with a pool mouth 7, and the pool mouth 7 is connected to the circulation pipe 10, and the upper side of the biogas tank 3 is provided with an air duct 4. Below the pool mouth 7 of the biogas digester, there is a funnel-shaped hydraulic room 8; the funnel of the funnel-shaped hydraulic room 8 is spherical, and the upper mouth of the spherical funnel is connected to the wall of the biogas digester, and the bottom of the funnel is connected to the connecting pipe 6. The communication pipe 6 is symmetrically provided with a flow hole 11, and the pipe below the flow hole 11 is equipped with a movable cover 5; the lower end of the communication pipe 6 is located on the support 14, and the lower end of the support 14 is connected to the bottom of the biogas digester; the outside of the funnel-shaped water pressure room 8 is a fermentation Between 9.

The inner diameter of the spherical biogas digester is 2500 mm; the diameter of the feed inlet is 600 mm, and the height is 300 mm; the diameter of the feed pipe is 300 mm; Height 400 mm; flow hole 260 mm. The utility model adopts a large feed pipe and a large discharge pipe, which is convenient for workers to install and maintain; a movable cover is installed at the lower end of the connecting pipe to prevent the biogas produced in the lower fermentation room 9 from running upward from the connecting pipe, and the water pressure room is designed at the top of the pool, It avoids the floating and encrusting of fermentation raw materials in the biogas digester. A dung bucket is used outside the biogas digester, and the upper part of the dung bucket is connected to the pool mouth 7 and the feed inlet 1 through the circulation pipe 10, which is convenient for feeding and discharging materials and circulating stirring, and improves the gas production rate. The whole pool has no seal, easy to manage and construct, and safe to use.

The working principle of the utility model is: when the biogas tank fermentation room 9 produces biogas, the liquid level in the fermentation room drops, and the biogas slurry flows into the water pressure room 8 along the corresponding flow holes 11 on both sides of the connecting pipe 6 at the lower end of the water pressure room, and the fermentation room 9 The more gas is produced, the higher the water level in the water pressure room 8 rises. When the air duct 4 is opened to connect to the user's biogas switch, the density of the biogas above the fermentation room 9 decreases, and the drop in the water level in the water pressure room 8 forces the biogas to flow to the user's stove.

Claims (3)

1, interior roof pressing type ball-shaped biogas digester, comprise methane-generating pit, methane-generating pit one side is being communicated with opening for feed by feed-pipe, opposite side is being communicated with the grain bin manure bucket by taking out the excrement device, the top of methane-generating pit is provided with Chi Kou, and Chi Kou is being communicated with circulation tube, it is characterized in that: described methane-generating pit is for spherical, connected to form by two hemispheres up and down, the below of its inner top Chi Kou is provided with the funnel-form water pressure house; Funnel-form water pressure house top is connecting the pool wall of methane-generating pit, and funnel-form water pressure house bottom is being communicated with communicating pipe, is arranged with opening on communicating pipe, is provided with removable cover in the pipe of opening below; Funnel-form water pressure house outside is a sweathouse.

2, interior roof pressing type ball-shaped biogas digester according to claim 1, it is characterized in that: the funnel of described funnel-form water pressure house is a segment shape, the segment shape funnel pool wall that is connecting methane-generating pit suitable for reading, the communicating pipe lower end of its bottom is positioned on the pillar, and the pillar lower end is connecting the methane-generating pit inner bottom part.

3, interior roof pressing type ball-shaped biogas digester according to claim 1, it is characterized in that: described ball-shaped biogas digester internal diameter is 2500 millimeters; The opening for feed diameter is 600 millimeters, 300 millimeters of height; 300 millimeters of feed tube diameter; Funnel-form water pressure house back cut diameter is 1400 millimeters, 1000 millimeters of height; Communicating pipe, diameter was 600 millimeters, 400 millimeters of height; 260 millimeters of openings.

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