CN200967787Y

CN200967787Y - Simple methane-generating pit

Info

Publication number: CN200967787Y
Application number: CNU2006201279662U
Authority: CN
Inventors: 李俊超; 范春起; 赵聪敏
Original assignee: Hebei University of Science and Technology
Current assignee: Hebei University of Science and Technology
Priority date: 2006-10-26
Filing date: 2006-10-26
Publication date: 2007-10-31
Anticipated expiration: 2016-10-26

Abstract

A simple methane tank belongs to the technical field of methane production facilities, and is used to eliminate the trouble in construction of methane tanks and the defect of high construction cost. The technical proposal involves a tank body and a tank cover. The methane tank is characterized in that the tank is rectangular; the tank cover consists of a rectangular frame and a plastic film layer. Peripheral hems of the plastic film layer are butt joined to the rectangular frame; both ends of each of the symmetrical sides of the rectangular frame extend outwards to form support columns; suited inverse L-shaped grooves are provided on the wall of the tank and correspond to the support columns. The tank cover is supported in the inverse L-shaped grooves through the support columns; a methane outlet is provided in the center of the plastic film layer. The utility model has simple structure, can make use of existing manure pit as the tank body, dispenses with the trouble of construction of the tank body. In addition, the tank cover is easy to be made, is convenient to be sealed; the joint can be automatically sealed through the fermentation liquid in the tank. By comparing the utility model with prior methane tanks, the cost of manufacture is significantly reduced, occupies no land, and is suitable for promotion and application in the places of countries where there are abundant discarded organic raw materials.

Description

Simple and easy methane-generating pit

Technical field

The utility model relates to the methane-generating pit of producing biogas, belongs to biogas production facility technology field.

Background technology

With organism such as straw, human and animal excretas is raw material, the biogas that utilizes methane-generating pit that its fermentation is produced be a kind ofly turn waste into wealth, inexhaustible combustion gas, in a lot of rural areas, become the main source of fuel.Existing methane pool mostly is the special-purpose methane-generating pit that brick and tile are constructed, and constructing to dig pit builds a wall, and it is many to construct time-consuming bothersome recruitment, and is expensive big, and also has the disadvantage of occupation of land.In the rural area, almost all there is manure pit in the every household, if can utilize existing manure pit to make the pond body of methane-generating pit, that can exempt the trouble of digging pit and building a wall, need not again to take up an area of in addition, the Chi Gai that key is to provide suitable and with manure pit between be connected sealing problem.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of simple and easy methane-generating pit that utilizes manure pit.

The alleged problem of the utility model realizes with following technical scheme:

A kind of simple and easy methane-generating pit, pond body, Chi Gai are arranged in the formation, unique distinction is, the cell cavity of described pond body 1 is a rectangular cavity, and described Chi Gai is made up of rectangle frame 2 and plastic membranous layer 3, and the periphery of plastic membranous layer 3 and rectangle frame 2 are tightly connected, the symmetrical edge two ends of rectangle frame stretch out respectively and form pillar stiffener 4, correspondence is provided with inverted "L" shaped draw-in groove 5 on the wall of pond body 1, and Chi Gai is supported in the inverted "L" shaped draw-in groove by pillar stiffener 4, and there is methane outlet 6 at the center of plastic membranous layer 3.

Above-mentioned simple and easy methane-generating pit, the sealing docking structure of the periphery of described plastic membranous layer 3 and rectangle frame 2 be, plastic membranous layer week the edge outside turnup of rectangle frame inside casing mouth and press solidly on the frame mouth by pressing plate 7.

The utility model features simple structure, Chi Tike utilizes existing manure pit, can save the trouble of constructing the pond body, the Chi Gai that the rectangle frame structure adds plastic membranous layer also is easy to make, and can realize that the capping between rectangle frame and pond body fastens, and can fasten the slit from the dynamic seal capping by fermented liquid in the pond after the capping by unique inverted "L" shaped draw-in groove, existing relatively methane-generating pit, cost of manufacture reduces significantly, and does not take up an area of in addition, suits to apply in the competent places of organic waste raw material such as rural areas.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is a manure pit stereographic map among Fig. 1;

Fig. 3 is a rectangle frame stereographic map among Fig. 1.

The component label is respectively in the accompanying drawing: 1-pond body, 2-rectangle frame, 3-plastic membranous layer, 4-pillar stiffener, 5-draw-in groove, 6-methane outlet, 7-pressing plate.

Embodiment

Consult Fig. 1,2,3.Pond body 1 is a manure pit among the figure, the trapezoidal hole shape that the rectangle cell cavity is big up and small down, the inverted "L" shaped draw-in groove 5 of four couplings is positioned on the symmetrical pool wall, during capping, two pillar stiffeners 4 on the edge of rectangle frame 2 are entered in the level trough by the vertical notch in the inverted "L" shaped draw-in groove 5 of correspondence, behind the interior horizontal component of the card entry slot that moves to left a little, with these two pillar stiffeners is that fulcrum rotates rectangle frame 2, two pillar stiffeners 4 on another edge are entered in the level trough by the vertical notch of the inverted "L" shaped draw-in groove of other two correspondences, the rectangle frame 2 that moves to left then, the vertical notch that four pillar stiffeners 4 are staggered in four " L " shape draw-in grooves just is stuck in rectangle frame in the inverted "L" shaped draw-in groove.Make the fermentation liquid level in the pond body 1 flood rectangle frame 2, just can realize the sealing between Chi Gai and manure pit easily.

Consult Fig. 1.Fermentation initial stage biogas pressure hour, plastic membranous layer 3 is in nature and steps on sunken state, heaves gradually with the rising plastic membranous layer 3 of biogas pressure, forms illustrated arch, and the methane outlet 6 at its center just in time is positioned at vault, and biogas just mouthful is drawn continuously thus.

Still consult Fig. 1.Plastic membranous layer 3 docks with the sealing of rectangle frame 2 and can adopt shown in the figure, makes the outside turnup of inside casing mouth of all edges rectangle frame 2 of plastic membranous layer 3, presses solidly on the frame mouth by pressing plate 7 afterwards.Pressing plate 7 can be by little iron nail nail on wooden frame mouth.Plastic membranous layer 3 also can be the waterproof layer of other material.

Claims

1. simple and easy methane-generating pit, pond body, Chi Gai are arranged in the formation, it is characterized in that, the cell cavity of described pond body [1] is a rectangular cavity, and described Chi Gai is made up of rectangle frame [2] and plastic membranous layer [3], and the periphery of plastic membranous layer [3] docks with rectangle frame [2] sealing, the symmetrical edge two ends of rectangle frame stretch out respectively and form pillar stiffener [4], the corresponding inverted "L" shaped draw-in groove [5] that coupling is set on the manure pit, Chi Gai supports in the inverted "L" shaped draw-in groove by pillar stiffener [4], and there is methane outlet [6] at the plastic membranous layer center.

2. simple and easy methane-generating pit according to claim 1 is characterized in that, the sealing docking structure of the periphery of described plastic membranous layer [3] and rectangle frame [2] is that the plastic membranous layer outside turnup of week edge rectangle frame inside casing mouth also presses solidly on the frame mouth by pressing plate [7].