CN2816031Y

CN2816031Y - Jar-shape floating cover for marsh gas fermentation pool

Info

Publication number: CN2816031Y
Application number: CNU2005200335054U
Authority: CN
Inventors: 雷天春
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-17
Filing date: 2005-03-17
Publication date: 2006-09-13
Anticipated expiration: 2015-03-17

Abstract

The utility model relates to an urniform floating cover for a methane fermenting pool, which belongs to a component of a methane fermenting pool. A conduit tube node is arranged on a cover cap which is composed of a cambered top and a vertical side wall which is arranged in an annular water storing groove above the methane fermenting pool and performs a water sealing function. The utility model is also provided with a conduit which is arranged in the center position of the top of the cover cap, the upper end of the conduit extends out of the cover cap, and the lower end of the conduit extends downward into an inner chamber of the cover cap. The utility model is also provided with an agitating rod which is inserted into the cover cap through the conduit and extends to an inner chamber at the lower part of the methane fermenting pool, and a spacing mechanism is arranged on the agitating rod. The utility model is matched with the methane fermenting pool with an opening at the upper part and the annular water storing groove, and has the advantages of stable and adjustable methane supply pressure, high agitating efficiency, convenient maintenance in the pool and convenient deposit clearance.

Description

The floating cover of urniform that is used for marsh gas fermentation pool

One, technical field

The utility model relates to the parts of production and use of marsh gas fermentation vat, makes the field especially for the cover cap of marsh gas fermentation pool.

Two, background technology

Widely popularize and use marsh gas fermentation pool in the rural area.It can produce biogas in the back by fermentation with straw, weeds, organic waste etc., as the energy, uses for the illumination and the cooking.Existing methane-generating pit (also claim fermentation vat, down with) generally adopts concrete for making, and structurally, cover cap and pool wall generally water and be made as one (or open a skylight at the cover cap top), and cover cap is provided with the tube coupling of giving vent to anger.This monoblock type methane-generating pit has following defective: one, be not easy in the pond to safeguard or the pond in sediment remove.The cleaning personnel must climb into Chi Tizhong from discharge port, usually do not reach safety requirements because the pool gas displacement is blown down, and cause the dead serious accident of operator's poisoning in the pond.Its two, the atmospheric pressure that goes out of this methane-generating pit changes with the attenuation degree of material in the pond, air supply pressure fluctuation is bigger, influence sometimes is normal to be used; Its three, this methane-generating pit can only stretch into the bamboo bar by opening for feed or discharge port (the two is oblique setting) and stir, effort, inconvenience and efficient are low.

Three, utility model content

Task of the present utility model provides a kind of floating cover of urniform that is used for marsh gas fermentation pool, be intended to upper opening, be provided with the supporting use of fermentation vat of annular recesses, and solve fermentation vat supply gas pressure instability, maintenance, scarfing cinder inconvenience and the low problem of stirring efficiency in the pond.This novel purpose is achieved in that a kind of floating cover of urniform that is used for marsh gas fermentation pool, comprise cover cap, the air guide tube coupling is characterized in that, described cover cap by arched top and as among the annular water storage groove that places methane-generating pit top, the vertical side walls that plays the water seal effect forms; Also have conduit: conduit is arranged on cover cap top center position, and its upper end is stretched out outside the cover cap, lower ends downward extends among the cover cap inner chamber; Also have through conduit and insert cover cap and extend to the agitator arm of bottom methane-generating pit inner chamber; Agitator arm is provided with position-limit mechanism.

Described agitator arm lower end is fixed with agitator disk, also is fixedly connected with two " F " shape break bars by the round steel welding on the agitator arm.

Also be provided with on the described cover cap as introducing the natural pond liquid backflow tube coupling that natural pond liquid plays stirring action.

Described position-limit mechanism is the movable latch that is arranged on the agitator arm.

The material of described cover cap is a glass reinforced plastic.

Be placed with balancing weight on the described cover cap.

According to technique scheme, during use, this novel buckle closure is filled on fermentation vat top among the annular recesses of water, constitute the floating cover of urniform stirring-type marsh gas fermentation pool.Fermentation gas increases in the pond, and when pressure raise, this novel floating cover was subjected to upwards reactive force, moves up and by jack-up; When pool gas pressure descended, this novel floating cover moved down thereupon.Like this, when fermentation gas pressure when certain limit fluctuates because the rising of floating cover or descend and changed spatial size in the floating cover makes the gaseous tension substantially constant in the floating cover thereupon, that is to say to have guaranteed the stable of supply gas pressure.If need to improve supply gas pressure, then can on floating cover, add balancing weight; Like this, can adjust supply gas pressure within the specific limits; Secondly, if need carry out safeguarding or during the cleaning sediment in the pond in, can be (when diameter be 1.8m with novel floating cover originally, heavily about 100 kilograms of the floating cover of glass reinforced plastic) uncovers from fermentation vat, like this, be easy to toxic gas in the pond is dispersed, maintenance is also more convenient in sediment cleaning and the pond; Again secondly, this novel stirring mechanism is arranged on the middle part, and its alr mode has following three kinds: 1, manpower stirs.Take off latch, hold agitator arm, in the vertical direction, down back and forth mention, put down, feed liquid is stirred; 2, stir automatically.Along with variation of gas pressure in the fermentation vat, floating cover is upper and lower thereupon to be moved, and drives the upper and lower motion of agitator arm (being positioned on the floating cover through latch) simultaneously, and feed liquid is played stirring action; 3, natural pond liquid refluxes and stirs.Available manpower is sent into natural pond liquid in the header tank, natural pond liquid is introduced in the fermentation vat through natural pond liquid re-injection stream tube coupling stirred.Thereby this novel alr mode is multiple, and stirring operation is convenient, stirring efficiency is high, helps the raising of biogas yield.

Four, description of drawings

Fig. 1 is this novel structure iron;

Fig. 2 is the stereographic map after shown in Figure 1 novel cover cap dissects half.

Five, embodiment

Fig. 1 Fig. 2 illustrates, and cover cap 1 is made up of arched top and vertical side walls, and the vertical side walls of cover cap plays the water seal effect as matching with the annular recesses that is filled with water on the fermentation vat.The tube coupling 2 of giving vent to anger is arranged on the arched top of cover cap; Conduit 4 connect firmly stretch out beyond the cover cap in cover cap top center position, its upper end, lower ends downward extends among the cover cap inner chamber; Agitator arm 5 inserts cover cap and extends downward the fermentation vat inner chamber through conduit 4, and its lower end is fixedly connected with agitator disk 7, also is fixedly connected with two " F " shape break bars 8 by the round steel welding on it; Agitator arm top is provided with movable latch 6, plays position-limiting action (should comprise other usual manner); Also be provided with on the cover cap as introducing the natural pond liquid backflow tube coupling 3 that natural pond liquid plays stirring action.The cover cap 1 general glass reinforced plastic that adopts is made, and diameter is 1.5-1.8m, and its vertical side walls height is 0.5-0.8m.Place balancing weight on the cover cap, to adjust the control supply gas pressure.

Claims

1, the floating cover of a kind of urniform that is used for marsh gas fermentation pool comprises cover cap, and the air guide tube coupling is characterized in that, described cover cap (1) by arched top and as among the annular water storage groove that places the methane-generating pit top, the vertical side walls that plays the water seal effect forms; Also have conduit (4): conduit (4) is arranged on cover cap (1) top center position, and its upper end is stretched out outside the cover cap, lower ends downward extends among the cover cap inner chamber; Also have through conduit (4) and insert cover cap and extend to the agitator arm (5) of bottom methane-generating pit inner chamber; Agitator arm is provided with position-limit mechanism.

2, the floating cover of urniform according to claim 1 is characterized in that described agitator arm (5) lower end is fixed with agitator disk (7), also is fixedly connected with two " F " shape break bars (8) by the round steel welding on the agitator arm.

3, the floating cover of urniform according to claim 1 is characterized in that, also is provided with on the described cover cap (1) as introducing the natural pond liquid backflow tube coupling (3) that natural pond liquid plays stirring action.

4, according to claim 1 or the floating cover of 2 or 3 described urniforms, it is characterized in that described position-limit mechanism is for being arranged on the movable latch (6) on the agitator arm (5).

5, the floating cover of urniform according to claim 4 is characterized in that the diameter of described cover cap is 1.5-1.8m, and the height of its vertical side walls is 0.5-0.8m.

6, the floating cover of urniform according to claim 5 is characterized in that the material of described cover cap (1) is a glass reinforced plastic.

7, the floating cover of urniform according to claim 6 is characterized in that described cover cap is placed with balancing weight on (1).