CN201351162Y - Top pressure-type integration methane tank - Google Patents

Abstract

The utility model relates to a top-pressure integrated biogas digester, a shell made of organic, inorganic glass fiber reinforced plastic or composite materials, the upper part and the lower part of the shell are connected as a whole through flanges; the space in the lower part of the shell is As a fermentation chamber for biogas generation, the upper part of the housing includes a water pressure room, a discharge pipe and an air storage chamber, the air storage chamber and the fermentation chamber are connected to form an integral chamber, and the discharge pipe runs through the hydraulic chamber above the air storage chamber It is connected with the fermentation room, and the top of the water pressure room is equipped with a discharge port, which is sealed with a discharge port cover. The top of the air storage chamber is provided with an air guide port with an air delivery pipe, and one end of the air delivery pipe extends out of the water pressure room. A net for dividing the scum layer on the liquid surface is arranged between the lower port of the feed pipe and the top of the air storage chamber, and the feed pipe communicates with the fermentation chamber. The water pressure room and the upper part of the pool body of the utility model are an integral whole structure, which has good resistance to cracking; the structure is simple and firm, and has the advantages of convenient transportation and quick installation.

Description

Top pressure integrated biogas digester

technical field

The utility model relates to treatment equipment for sewage, waste residue, and human and animal excrement, in particular to a top-pressure integrated methane pool.

Background technique

Biogas is a kind of renewable energy. The use of biogas can reduce the pollution of the environment due to coal or fuel combustion, and can also process and utilize people's domestic waste and livestock excrement. At present, most of the household biogas digesters in urban and rural areas in my country are made of bricks. Concrete or concrete structure, but the construction of concrete biogas digesters is difficult, the sealing performance is poor, easy to leak, and the effect is not good. At present, FRP biogas digesters have also appeared. FRP biogas digesters have the advantages of light weight, quick pool construction, corrosion resistance, and good air tightness. The main pool body and the discharge pipe between the water pressure chambers are installed on the oblique outer top of the main pool body. The structure of the biogas digester with this structure is scattered, the installation is complicated, it is not easy to seal, and there is no broken shell net that divides the scum layer on the liquid surface. Being pulled apart, causing air leakage or even scrapping the pool body.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model provides a top-pressure integrated biogas pit, which designs the water pressure chamber and the upper part of the pond body as an integrated overall structure, so that the biogas pit has good tensile crack resistance, And it has the advantages of simple structure, convenient transportation, quick installation and automatic shell breaking.

The purpose of this utility model is achieved in this way: the top-pressure integrated biogas digester includes a shell made of organic, inorganic glass fiber reinforced plastic or composite materials, the upper part and the lower part of the shell are connected as a whole through flanges; The space in the lower part of the shell is the fermentation chamber for biogas generation. The upper part of the shell includes a hydraulic room, a discharge pipe and an air storage chamber. The air storage chamber and the fermentation chamber are connected to form an integral chamber, and the discharge pipe runs through the air storage chamber The upper water pressure room is connected with the fermentation room, and the top of the water pressure room is provided with a discharge port, which is sealed with a discharge port cover, and the top of the air storage chamber is provided with an air guide port with an air delivery pipe, and one end of the air delivery pipe protrudes In the water pressure room, a net for dividing the scum layer on the liquid surface is set between the lower port of the discharge pipe and the top of the air storage chamber, and the feed pipe communicates with the fermentation chamber.

Due to the adoption of the above technical scheme, the upper part of the housing and the lower part of the housing are connected as a whole through flanges, and the air storage chamber and the fermentation chamber are connected to form an integral chamber. The pressure chamber, discharge pipe, gas storage chamber and feed pipe are an integral structure located on the upper part of the biogas digester shell. When geological disasters such as foundation subsidence occur, the biogas digester can settle synchronously as a whole. The force on the pipe, feed pipe and the tank body is relatively uniform and will not be pulled apart, which can effectively prevent air leakage and liquid leakage. Between the lower port of the discharge pipe and the top of the air storage chamber, a net for dividing and stirring the scum layer on the liquid surface is provided. When the fermentation liquid level in the fermentation chamber fluctuates, the scum layer on the stirring liquid surface can be effectively cut, Preventing scum encrustation makes it difficult for biogas to escape from the fermentation chamber into the gas storage chamber. The center of the bottom of the lower part of the housing is provided with an upward protruding part, which makes the contact area between the biogas tank and the ground larger and the installation is more stable. , which acts like a reinforcing rib, increases the strength of the shell, and improves the pressure resistance of the shell. The utility model also has the advantages of simple structure, firm connection, convenient transportation and quick installation.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view along line A-A of Fig. 1 .

In the accompanying drawings, 1 is the discharge port cover, 2 is the water pressure room, 3 is the air delivery pipe, 3a is the air guide port, 4 is the discharge pipe, 5 is the screen, 6 is the air storage chamber, 7 is the flange, 8 9 is the protrusion, 10 is the feed pipe, 11a is the upper part of the housing, and 11b is the lower part of the housing.

Detailed ways

Referring to Fig. 1 and Fig. 2, the utility model includes a shell made of organic, inorganic glass fiber reinforced plastic or composite materials, the shell is divided into two parts, the upper part 11a of the shell and the lower part 11b of the shell, and the upper part and the lower part of the shell pass through the flange 7 They are connected into one body to form a biogas digester with an approximate spherical structure. The lower part 11b of the housing is a fermentation chamber 8 for generating biogas, and the center of the bottom of the lower part of the housing is provided with a raised part 9 toward the center of the housing to increase the pressure resistance of the biogas digester, adding the same as above and making the installation more stable . The upper part 11a of the housing includes a water pressure room 2, a discharge pipe 4 and an air storage chamber 6. The air storage room 6 communicates with the fermentation chamber 8 to form a chamber with an integral structure. The water pressure room 2 is above the air storage room. The pressure chamber and the air storage chamber together form an integral hat-shaped structure or a hemispherical structure, and form the main structure of the upper half of the pool body. The discharge pipe runs through the hydraulic chamber 2 and communicates with the fermentation chamber 8. The discharge pipe and the bottom of the hydraulic chamber are an integral structure. The discharge pipe is located in the middle of the bottom of the hydraulic chamber. below the liquid surface. A discharge port is arranged above the hydraulic chamber of the discharge pipe, and the discharge port is sealed with a discharge port cover 1 . Open the discharge port cover, the discharge pipe can be used to discharge the material or after the gas and liquid are discharged, it can be used as a channel for maintenance personnel to enter and exit the tank. The top of the air storage chamber is provided with an air guide port 3a with an air delivery pipe 3, and one end of the air delivery pipe 3 extends out of the water pressure room for connection with the user's burning appliance. A net 5 for dividing the scum layer on the liquid surface is arranged between the lower port of the discharge pipe and the top of the air storage chamber. The top connection is conically distributed between the lower port of the discharge pipe and the top of the air storage chamber. The upper part of the feed pipe is inserted into the upper part of the shell, and part of it is fixedly connected with the outer wall of the shell. The lower part vertically extends into the upper part of the shell, and the bottom reaches the flange plane, which is used as a channel for feeding.

The working process of the utility model: after the biogas tank is fed, the biogas produced by the raw materials in the fermentation chamber escapes from the fermentation liquid surface and enters the gas storage chamber. When the biogas accumulates to a certain amount, the air pressure in the gas storage chamber rises, and the supernatant The liquid is pressed into the water pressure room through the discharge pipe. As the gas production increases, the air pressure increases, and the water level in the water pressure room continues to rise; there is a water level difference between the high water level in the water pressure room and the low water level in the fermentation room, so a pressure difference is formed. This pressure The difference forms a pressure on the biogas in the gas storage chamber. When the user opens the gas valve, the biogas is pressed into the burning appliance by the water pressure in the pool. With the consumption of the biogas, the water level in the water pressure room gradually drops. In the water pressure room, reciprocating in this way, the biogas digester described in the utility model will continuously produce gas-use gas-gas-produce cycle work. At the same time, when the liquid level in the fermentation room fluctuates continuously with gas production and gas consumption, the conical distribution network repeatedly divides and stirs the scum layer to automatically break the shell, ensuring the high-efficiency gas production and normal work.

Claims (5)

1. a roof pressing type integrated methane pond comprises the housing of being made moulding by organic and inorganic glass reinforced plastic or matrix material, and it is characterized in that: the top of described housing (11a) connects as one by flange (7) with bottom (11b); The space of described lower housing portion (11b) is for producing the proving room (8) of biogas, described housing top (11b) comprises water pressure house (2), discharge nozzle (4), gas dome (6) and feed-pipe (10), water pressure house is positioned at directly over the gas dome, the end of water pressure house is the top of gas dome, discharge nozzle by water pressure house at the bottom of the middle part extend through gas dome downwards and enter proving room, the water pressure house top is provided with discharge port; Discharge port seals with discharging flap (1), the gas dome top is provided with the bowl-type air guide port (3a) that has pneumatic tube (3), one end of pneumatic tube (3) stretches out water pressure house, is provided with the net (5) that is used to cut apart, stir clear liquid surface scum layer between discharge nozzle lower port and the gas dome top; Feed-pipe (10) epimere and top side, pond connect firmly, and hypomere vertically inserts proving room.

2. the integrated water pressure house of roof pressing type according to claim 1 is characterized in that: water pressure house and gas dome are a whole hat or a hemispherical dome structure jointly.

3. the integrated water pressure house of roof pressing type according to claim 1 is characterized in that: be an one-piece construction at the bottom of discharge nozzle and the water pressure house, discharge nozzle is positioned at the middle part at the bottom of the water pressure house and the bottom is put in the liquid level of sweathouse by gas dome.

4. roof pressing type integrated methane according to claim 1 pond, it is characterized in that: described net (5) one ends that are used to cut apart the liquid level scum layer are connected the other end and are connected some tapered being distributed between discharge nozzle lower port and the gas dome top with the gas dome top with the discharge nozzle lower end.

5. roof pressing type integrated methane according to claim 1 pond is characterized in that: the bottom centre of described lower housing portion is provided with to the lug boss of housing heart portion (9).

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