CN201077839Y - Floating bell-type fiberglass methane tank - Google Patents

Abstract

The utility model discloses a floating-cover type glass fibre reinforced plastic methane pool, comprising a fermentation pool (1), a floating cover (2), a feed pipe (3), a discharge pipe (4), a discharge pipe (4), a counterweight (5), a windpipe (6) and a shell breaking shelf (7), wherein, the feed pipe (3) and the discharge pipe (4) are positioned respectively on the wall of the fermentation pool (1); the floating cover (2) is positioned in the fermentation pool (1); the shell breaking shelf (7) is positioned in the floating cover (2); the counterweight (5) is positioned on the upper part of the floating cover (2); the windpipe (6) drilling through the counterweight (5) extends into the floating cover (2). The utility model cancels the hydraulic pressure chamber, simplifying the structure; the pool is easy to be built, increasing the building speed; the air pressure is constant, avoiding the fluctuation caused by the increase and the decrease of the consumed air volume and the air storage volume; in addition, the utility model has the advantages of lower cost, good ventilation, safe and convenient operation, favorableness to overlapped transportation and transportation cost saving.

Description

Floating cover type fiberglass digester

technical field

The utility model relates to a biogas pond, in particular to a floating cover type glass fiber reinforced plastic biogas pond.

Background technique

At present, bricks and cement are mainly used in rural areas to build hydraulic biogas digesters. This kind of biogas digester is prone to leakage, poor sealing, and occupies a large area. The slag in the biogas digester cannot automatically break the shell after crusting. , the air pressure is also unstable, the process technology is complicated, and the cost is high.

Utility model content

The purpose of the utility model is to provide a floating cover type glass fiber reinforced plastic biogas digester with simple structure and low cost.

In order to achieve the above object, the utility model adopts the following technical scheme: a floating cover type FRP biogas digester, which includes a fermentation tank, a floating cover, a feed pipe, a discharge pipe, a counterweight, an air guide pipe, and a shell breaking frame, wherein The feed pipe and the discharge pipe are respectively installed on the tank wall of the fermentation tank, a floating cover is arranged in the fermentation tank, a shell breaking frame is arranged in the floating cover, a counterweight is arranged on the upper part of the floating cover, and the air guide pipe passes through the distribution The weight extends into the floating cover.

The floating cover is conical or polygonal.

The cracking frame is in the shape of a cross.

Since the utility model is respectively equipped with a feed pipe and a discharge pipe on the pool wall of the fermentation tank, a floating cover is arranged in the fermentation tank, a shell breaking frame is arranged in the floating cover, and a counterweight is added on the upper part of the floating cover. The counterweight is installed on the upper port of the fermentation tank, and the air guide pipe passes through the counterweight and extends into the floating cover. Therefore, the utility model has the following advantages: 1. The utility model adopts the counterweight to ensure The air pressure of the biogas in the biogas digester (that is, the air pressure is controlled by the counterweight to achieve the required constant value), the water pressure room is canceled, and the structure is simplified, because it is no longer relying on the fermentation liquid to fill the water pressure room to balance the air pressure, thus saving fermentation Raw materials, gas production and utilization are more fully; 2. The utility model is mainly composed of a fermentation tank, a floating cover, a feed pipe, a discharge pipe, a counterweight, an air guide pipe, and a shell breaking frame. Due to the simplified structure, it is easy to build a tank. 3. When the biogas storage in the utility model increases, the floating cover will rise to the air pressure balance. When the biogas storage exceeds the volume of the floating cover, the biogas will automatically overflow from the periphery of the floating cover, and the floating cover will A counterweight is added to the upper part of the utility model to ensure that the biogas pressure balance is achieved. Therefore, the utility model has a constant air pressure and does not cause fluctuations in the gas pressure due to the increase or decrease of the gas consumption or gas storage; 4. For the utility model floating cover type biogas digester In other words, when the same material is used to build the pool, the cost of building the pool is lower than that of other biogas pools; 5. The utility model removes the counterweight and takes out the floating cover in the biogas pool to carry out large-scale cleaning of the pool, and the ventilation is good , The operation is safe and convenient, avoiding suffocation and death accidents; 6. The floating cover is conical, which is convenient for overlapping transportation and saves transportation costs.

Description of drawings

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

Detailed ways

The structure of a floating cover type FRP biogas digester of the utility model is shown in Figure 1: it mainly consists of a fermentation tank 1, a floating cover 2, a feed pipe 3, a discharge pipe 4, a counterweight 5, an air guide pipe 6, and a broken shell frame 7, in which a feed pipe 3 and a discharge pipe 4 are installed on the wall of the fermentation tank 1 respectively, the feed pipe 3 and the discharge pipe 4 communicate with the inner cavity of the fermentation tank 1 respectively, and the feed pipe 3 and the discharge pipe 4 The feed pipe 4 can be respectively located on the corresponding two sides of the fermentation tank 1, and a floating cover 2 is installed in the fermentation tank 1, and the floating cover 2 can be conical or polygonal with a small top and a large bottom, so as to facilitate overlapping transportation. There is shell breaking frame 7 in floating cover 2, and breaking shell frame 7 can be cross shape, is convenient to the automatic destruction of fermentation tank upper crust in the process of rising or falling motion, is provided with counterweight 5 (being that A counterweight 5 is added to the upper part of the floating cover 2, and the counterweight 5 is located at the upper port of the fermentation tank 1, and the counterweight 5 seals the fermentation tank 1 simultaneously), and the air guide tube 6 passes through the counterweight 5 and extends into the floating cover 2 Inside, the biogas in the floating cover can be exported to the gas point through the air duct 6. All parts or all of the biogas digesters can be made of glass fiber reinforced plastic materials, concrete or brick-concrete materials.

The fermented product enters the fermentation tank 1 from the feed pipe 3, and the biogas produced by the fermentation of the fermented product is stored in the floating cover 2. When the biogas storage increases, the floating cover 2 will rise to the air pressure balance. When the biogas storage exceeds the floating cover 2 volume, the biogas will automatically overflow from the periphery of the floating cover 2. The biogas in the floating cover can be exported to the gas use point through the air duct 6. A counterweight 5 is added to the top of the floating cover 2 to ensure that the biogas balance pressure is met. The discharge of biogas slurry and residue is realized through the discharge pipe 4 . The floating cover 2 moves up or down automatically when the air volume increases or decreases, and the cracking frame 7 installed in the floating cover 2 moves up or down at the same time, thereby automatically destroying the crust on the upper part of the fermentation tank, which is beneficial to fermentation and slag removal.

Claims (3)

1. A floating cover type FRP biogas digester is characterized in that: it comprises a fermentation tank (1), a floating cover (2), a feed pipe (3), a discharge pipe (4), a counterweight (5), Air duct (6), broken shell frame (7), wherein feed pipe (3) and discharge pipe (4) are respectively installed on the pool wall of fermenting vat (1), is provided with in fermenting vat (1) Floating cover (2), in the floating cover (2) there is a broken shell frame (7), the top of the floating cover (2) is provided with a counterweight (5), and the air duct (6) passes through the counterweight (5) ) into the floating cover (2). 2. The floating cover type FRP biogas digester according to claim 1, characterized in that: the floating cover (2) is conical or polygonal. 3. The floating cover type FRP biogas digester according to claim 1, characterized in that: the broken shell frame (7) is in the shape of a cross.

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