CN201148431Y - Water-sealed adjustable biogas generator - Google Patents

Abstract

Water-sealed adjustable biogas generator, including fermentation tank or pool, feed pool and biogas digester, is characterized by: the fermentation tank or pool is made of fiberglass, hard ceramic material or cement, etc. There is an open tank neck on the top of the tank, a gas storage cover is placed on the tank neck, and a water seal cover is placed outside the gas storage cover. A sealing reinforcement surface is provided at the bottom of the water seal cover and the tank body. There is a water-filled space between the lower part of the cover and the gas storage hood, which becomes a water-sealed biogas generator; there is a feed port on one side of the tank body, and a feed pipe is provided in the feed port, and a feed pipe is provided in the feed pipe. There is a pressing rod; there is a discharge port on the other side of the tank body, a discharge pipe is provided in the discharge port, and a biogas extraction rod is provided in the discharge pipe; multiple overflow pipes are arranged on the wall of the discharge pipe. Material hole, by adjusting the pressing rod, biogas extraction rod and overflow hole, the charging and biogas generation rate in the tank can be adjusted. Because the utility model has good sealing performance and adjustable gas production rate, the utility model is suitable for producing biogas as raw materials of human and livestock manure and crop stalks.

Description

Water-sealed adjustable biogas generator

【Technical field】

The utility model relates to a water-sealed adjustable biogas generator for generating biogas, which belongs to the technical field of new energy sources.

【Background technique】

Biogas is a combustible gas containing methane, hydrogen, nitrogen, sulfur dioxide, ammonium and a small amount of water vapor produced by closed fermentation of human and animal manure or crop straw under the action of anaerobic bacteria. It has high calorific value, no pollution, and wide application. It is a kind of renewable energy that can be recycled and utilized. It is also one of the four major energy projects that my country is currently vigorously developing. The production of biogas requires a closed fermentation equipment and a good anaerobic environment. In the past, fermentation equipment such as brick-concrete fermentation tanks and pure glass steel reaction tanks, although these fermentation equipment can also produce biogas, but they have common defects. It is difficult to seal, poor heat preservation effect, unreliable safety performance, inconvenient user adjustment, resulting in low gas production rate, difficult maintenance, and short service life, which affects the development of the biogas industry.

【Content of invention】

In order to overcome the above-mentioned defects of existing biogas fermentation equipment, the utility model provides a water-sealed adjustable biogas generator with good sealing performance, high strength and long service life, so as to improve the gas production rate of biogas and prolong its service life.

In order to solve its technical problems, the technical solution adopted by the utility model is: design a biogas generator including a fermentation tank body or a pool body, a feed pool, and a discharge pool, and its characteristic is that ① the fermentation tank body or pool The top of the body is provided with a cylindrical open tank neck, a gas storage hood is covered on the open tank neck, and a water seal is covered outside the gas storage hood; on the tank body walls on both sides of the open tank neck There are respectively a material inlet and a material outlet with a cover, a material inlet is provided in the material inlet, a material outlet is provided in the material outlet, and an air guide tube is provided on the top of the gas storage hood; ② Tank There is an air guide tube frame beside the water sealing cover of the neck, one end of the air guide tube is fixed on the top of the air storage hood through a sealing block, and communicates with the inner cavity of the air storage cover, the other end of the air guide tube is fixed on the air guide tube frame, and the nozzle is Biogas output port; ③Guide rails are provided on the inner wall of the water seal cover outside the tank neck, and a sealing reinforcement surface is provided inside and outside the position where the lower end of the water seal cover contacts the tank body wall; ④In the feed port, a Feed pipe, one end of the feed pipe communicates with the inner cavity of the tank, and the other end communicates with the feed tank, and a pressing rod is arranged in the feed pipe; a discharge pipe is provided in the discharge port, the discharge One end of the pipe is in contact with the bottom plate of the tank body, and the other end communicates with the biogas slurry tank. There is an overflow hole on the wall of the discharge pipe, and a return pipe is provided between the feed tank and the biogas slurry tank. The feed hole of the feed tank is connected, and the other end is connected with the discharge hole of the biogas slurry tank; A sealing ring is provided between the body wall of the discharge port of the tank body.

The beneficial effects of the utility model are: 1. because the fermenter of the utility model is provided with a cylindrical open tank neck, the tank neck is covered with a gas storage cover, and the gas storage cover is covered with a leak-free water seal, and The inlet and outlet of the tank body are respectively provided with sealable mouth covers, and there are sealing rings between the inlet and the feed pipe in the mouth, and between the outlet and the outlet pipe wall in the mouth, so there is a lot of Good sealing performance can completely solve the problem of easy leakage of biogas tanks. ②Because the utility model is equipped with a feeding pond and a biogas slurry pond, which communicate with the inner cavity of the fermenter through the feeding pipe and the discharging pipe respectively, the automatic, continuous and uninterrupted benign production cycle can be realized through the pressing rod and the biogas extraction rod. ③Because there is a guide rail on the inner wall of the water seal cover, it is convenient to install and disassemble the gas storage cover, which is convenient for operation and management, and can realize one-time charging of straw manure fermented matter, and can be used continuously for more than 5 months. ④Because the tank body of the utility model can be made of glass fiber reinforced plastic or hard ceramics, the tank body has high strength, good thermal insulation performance, corrosion resistance, anti-aging, good safety, and is suitable for dry fermentation technology for human and animal manure and various crop straws. The rods are fermented to produce biogas. After testing, the good heat preservation effect and anaerobic environment of the utility model improve the gas production and production rate, and the pressure used for biogas is raised to more than 10 kPa, and the pressure is stable.

【Description of drawings】

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

Accompanying drawing is the structural representation of the utility model.

In the figure: 1 tank body; 2 tank body flange sealing reinforcement surface; 3 pressing rod; 4 feeding port; 5 sealing ring; 6 sealing packing; 7 feeding port cover; 8 feeding pipe; 9 feeding hole ;10 return material pipe; 11 feed tank; 12 feed tank cover; 13 gas storage cover; 14 water seal cover; 15 weight block; 16 air guide tube frame; surface; 20 biogas tank; 21 biogas tank cover; 22 discharge hole; 23 discharge port cover; 24 sealing ring; 25 discharge port; 26 overflow hole;

【Detailed ways】

Referring to the accompanying drawings: on the top of the spherical tank 1 composed of two semicircular glass fiber reinforced plastics through the flange and the sealing reinforcement surface 2, an open cylindrical tank neck is provided, and the airtight tank is covered on the tank neck. The air storage cover 13 is provided with a through hole for air outlet on the top wall of the air storage cover 13, and one end of the air guide tube 17 is fixed in the through hole, and the other end of the air guide tube is fixed on the air guide tube frame 16 for outputting Biogas; a weight block 15 is provided outside the top wall of the gas storage hood 13 to keep the biogas of the gas storage hood under a certain pressure, and a water seal 14 is placed on the outer cover of the gas storage hood, and the lower end of the water seal and the tank body A sealing strong surface 19 is provided inside and outside the wall contact, and a longitudinal guide rail 18 is provided on the outer wall of the gas storage cover. The chamber is used to isolate the gas flow inside and outside the gas storage cover; a feed port 4 is provided on one side of the spherical tank body, a feed port cover 7 is provided on the feed port, and a feed port cover 7 is provided on the ground near the feed port. There is a feed pool 11, the pool mouth of the feed pool 11 is provided with a feed pool cover 12, and a feed pipe 8 is arranged between the feed pool and the feed port of the tank body. The material rod 3 is provided with a sealing ring 5 at the lower part between the feed port of the tank body and the feed pipe, and a sealing packing 6 is provided at the upper part; on the other side of the spherical tank body 1, a discharge port 25 is provided. The discharge port is provided with a discharge port cover 23, and a biogas digester 20 is arranged on the ground near the discharge port. The biogas digester mouth is provided with a biogas digester cover 21. There is a discharge pipe 28, a sealing ring 24 is provided between the discharge pipe and the discharge port, a biogas extraction rod 27 is arranged in the discharge pipe, and a plurality of overflow holes 26 are arranged on the discharge pipe wall ; A discharge hole 22 is provided on the lower wall of the biogas slurry tank 20, a feed hole 9 is provided on the lower wall of the feed pool 11, and a feed hole 9 is connected between the discharge hole 22 and the feed hole 9; Return pipe 10.

Claims (5)

1. A water-sealed adjustable biogas generator, including a fermenter body or pool body, a feed pool and a biogas digester, characterized in that: the top of the fermenter body or pool body is provided with a cylindrical opening The tank neck is covered with a gas storage hood on the open tank neck, and a water seal is covered outside the gas storage hood; the tank body walls on both sides of the open tank neck are respectively provided with a feed inlet with a cover and a The discharge port is provided with a feed pipe in the feed port, a discharge pipe in the discharge port, and an air guide pipe on the top of the gas storage hood. 2. According to claim 1, the water-sealed adjustable biogas generator is characterized in that: there is an air guide tube frame next to the water sealing cover of the tank neck, and one end of the air guide tube is fixed on the top of the gas storage cover through a sealing block, and is connected with the The inner cavities of the gas storage hood are connected, the other end of the air guide tube is fixed on the air guide tube frame, and the mouth of the tube is the biogas output port. 3. According to claim 1, the water-sealed adjustable biogas generator is characterized in that: guide rails are provided on the inner wall of the water-sealed cover outside the tank neck, and internal and external devices are installed at the position where the lower end of the water-sealed cover contacts the tank body wall. There is a sealing reinforcement surface. 4. The water-sealed adjustable biogas generator according to claim 1, characterized in that: a feeding pipe is provided in the feeding port of the tank, and one end of the feeding pipe communicates with the inner cavity of the tank, The other end communicates with the feed tank, and a pressure rod is provided in the feed pipe; a discharge pipe is provided in the discharge port of the tank body, one end of the discharge pipe is in contact with the bottom plate of the tank body, and the other end is in contact with the marsh The liquid pool is connected, there is an overflow hole on the wall of the discharge pipe, and a return pipe is provided between the biogas slurry pool and the feed pool. One end of the return material is connected to the feed hole of the feed pool, and the other end is connected to the biogas tank. The outlet holes of the liquid pool are connected. 5. According to claim 4, the water-sealed adjustable biogas generator is characterized in that: a sealing ring and a sealing block are provided between the feed pipe and the wall of the tank body feed port; A sealing ring is provided between the body walls of the discharge port.

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