CN2611380Y

CN2611380Y - Floating cover type plastic methane tank

Info

Publication number: CN2611380Y
Application number: CNU03242633XU
Authority: CN
Inventors: 左成春
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2004-04-14
Anticipated expiration: 2013-03-28

Abstract

A floating-hood style plastic methane-generating pit is cylindrically placed, which is provided with a fermenting tank, a floating hood and an material feeding and discharging systems, except a material-discharging pole and an additional weight, all the other components are plastic products, the methane-generating provides factory produced process, has excellent flexibility, employs waste plastic to build the tank and the fittings, has excellent sealing performance and low cost, the fermenting tank is designed integrating with the floating hood, which reduces the land-occupying area, decreases the size of the tank body and increases the capacity of the tank, the floating hood can float up and down achieving the destination of breaking the shell automatically, the pressure of the floating makes the output methane pressure stable.

Description

The cover-floating type plastic methane tank

Affiliated technical field

The utility model relates to rural area new forms of energy category, methane-generating pit construction craft technology.

At present, known methane-generating pit has air-bag type by the air storage mode, and the floating cover of concrete separates air-stored, and material, gas are with the hydraulic type in pond; Shape has sphere, ellipse, rectangle, arch; Material has masonry cement, glass reinforced plastic, also has the Ge Bashi of India; Current China rural area all is that masonry cement is the hydraulic type biomass pool of material more than 95%, the weak point in this pond is easy to leak, deflation, floor space is big, pond, main pond body is big, and scum silica frost easily crusts, the air pressure instability, the production methane-generating pit time is long, the Technology complexity can not the secondary resettlement move the cost height.

Summary of the invention

In order to solve the weak point of hydraulic type biomass pool, the utility model utilizes plastics place of cement sandstone brick, has solved the airtight problem of methane-generating pit; Utilize waste or used plastics to reduce cost; Utilize the useful volume of floating cover self air storage raising methane-generating pit; The suitable counterweight of floating cover makes biogas pressure stable; The entire body design of fermentation vat and floating cover and the vertical design of input and output material system have overcome the big problem of methane-generating pit floor space; Floating cover fluctuates, and reaches the purpose of automatic shell-breaking; The disposable shaping of plastics has strengthened the supporting capacity of methane-generating pit, is convenient to batch production production.

The technical scheme that its technical problem that solves the utility model adopts is: be main cylindrical, the vertically-arranged of producing of methane-generating pit with the waste or used plastics, the useful volume in main pond is 98%, floating cover produces the air pressure that floats in the cover behind the biogas and increases, floating cover rises, biogas minimizing in the floating cover during with gas, floating cover descends, the concrete weight coating net is pressed into scum silica frost in the liquid of natural pond and decomposes, automatic shell-breaking, the constant weight of floating cover and counterweight, the stable gas pressure of use gas carrier is rated at 800Pa or 1600Pa that national industry is stipulated, do not dispose the biogas pressure table, air storage amount in the graduated scale on the floating cover is represented to cover.

The beneficial effects of the utility model are: good leak tightness, floor space is little, main pond useful volume is big, automatic shell-breaking, stable gas pressure, the feature of cover-floating type plastic methane tank uses the tolerance of gas carrier to be enhanced about more than once (gas production rate that 4 cubic metres of volumes can reach 8 cubic metres of hydraulic pressure ponds), and the quality of methane molecule brings up to 66%.

Below in conjunction with drawings and Examples the utility model is further specified:

1, loading hopper; 2, feed-pipe; 3, charging bend pipe; 4, fermentation vat master pond; 5, floating cover; 6, concrete weight coating net; 7, biogas amount graduation apparatus; 8, outlet nozzle; 9, upflow tube; 10, discharging bend pipe; 11, three elliptical aperture reclaiming plates; 12, discharge barrel; 13, between the fertilizer of natural pond; 14, discharging pull bar; 15, combination cushion, its function are in cover during no air pressure, floatingly cover on lowest positioned cushion in the fermentation vat, the effect of stiffening web of playing in a week of the connection pool wall that it is airtight, and the 3rd is gather qi together, in the biogas of poly-fermentation pool wall periphery and scum silica frost introducing are floated and covered.

The process of the utility model automatic shell-breaking is to utilize the rising and the declines of 5 floating covers, is assemblied in concrete weight coating net in the floating cover and scum silica frost is pressed in the liquid of natural pond is decomposed fully.

Constant pressure air feeding of the present utility model is constant weight of utilizing 6 counterweights and 5 floating covers, make the biogas air pressure of output do not covered in what the influence of biogas quantity, stable with the operating pressure of gas carrier, do not lose biogas.

The natural pond liquid that the utility model fermented enters between 13 natural pond fertilizer automatically by upflow tube.

It is pressure and the portable discharging pump that utilizes 4 fermentation vats self that natural pond of the present utility model slag goes out the pond, sucks between 13 natural pond fertilizer according to the natural pond slag of pascal's principle with fluid semi-fluid shape in the pond.

Claims

1, the cover-floating type plastic methane tank is shaped as cylindrical vertically-arranged, is made of input and output material system, fermentation vat master pond and floating cover, and plastic member product is characterized in that airtight performance is good, automatic shell-breaking, stable gas pressure, floor space is little, main pond useful volume is big, and it is low to make the pond cost, and input and output material is convenient.

2, according to claim 1, the cover-floating type plastic methane tank is characterized in that: all be plastics except that counterweight and portable pump rod, Chi Rongke produces 2 cubic metres to 40 cubic metres.

3, according to claim 1, the cover-floating type plastic methane tank is characterized in that: automatic shell-breaking, and utilize fluctuating of floating cover and counterweight net that scum silica frost is pressed in the liquid of natural pond and decompose, do not produce the crust phenomenon.

4, according to claim 1, the cover-floating type plastic methane tank is characterized in that: stablize air feed, utilize the weight of floating cover and counterweight, make the biogas pressure of output in the cover stable, with gas carrier constant voltage gas.

5, according to claim 1, the cover-floating type plastic methane tank is characterized in that: floor space is little, and main pond and floating cover are the entire body designs, and the input and output material system is vertical design.

6, according to claim 1, its feature of cover-floating type plastic methane tank: be that cost is low, produce the prescription that main pond, floating cover and accessory adopt waste or used plastics.

7, according to claim 1, the cover-floating type plastic methane tank is characterized in that: input and output material is convenient, and the feeding mouth of feed-pipe is located at the middle part of methane-generating pit, and discharge port is in the bottom of opening for feed to crossing, and upflow tube is on the top of discharge port, and feed liquid can both fully be decomposed the back and be discharged.