CN202201892U

CN202201892U - Methane pool

Info

Publication number: CN202201892U
Application number: CN2011203016709U
Authority: CN
Inventors: 杨欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2012-04-25
Anticipated expiration: 2021-08-18

Abstract

The utility model belongs to the technical field of waste treatment and particularly relates to a methane pool for biological treatment of household waste. The methane pool comprises a digestion chamber; the upper part of the digestion chamber is provided with a waste inlet and a methane outlet; the interior of the digestion chamber is divided into an upper chamber and a lower chamber by an inclined division plate; one end of the division plate, which is near to the waste inlet, is higher than the end of the division plate, which is far away from the waste inlet; and the lowest end of the division plate is provided with a communication port through which the upper chamber is communicated with the lower chamber. The methane pool disclosed by the utility model has a simple structure and low construction cost. According to the further technical scheme of the utility model, the methane pool is provided with a methane pool material circulating system, a waste collection chamber, a collected waste transferring pump and a pressure stabilizing chamber, wherein the methane pool material circulating system is used for stirring methane pool materials in a circulating way at the methane usage peak period by using a methane pool material circulating pump so that methane bubbles left in the methane pool materials overflow rapidly to ensure the methane pressure, and the waste collection chamber is used for the hydraulic retention and precipitation of sewage slurry introduced into the methane pool, the collected waste transferring pump is used for transferring accumulated waste precipitate in the waste collection chamber so as to improve the concentration of materials entering a digestion pool, and the pressure stabilizing chamber works together with the methane pool material circulating pump and the collected waste transferring pump to perfectly regulate the methane output pressure of the methane pool.

Description

Methane-generating pit

Technical field

The utility model relates to the dirt processing technology field, is specifically related to a kind of methane-generating pit that domestic sewerage is carried out a biological disposal upon.

Background technology

The biogas bacterium can be decomposed the organism in the domestic sewerage.Existing methane pool or structure function are simple, and perhaps function is more, but structure is also very complicated, and laid down cost is high, and it is not high that biogas produces efficient, and the biogas air pressure of generation is unstable, and the cost of some methane-generating pit operation is also than higher.Particularly, also there is not a kind of suitable methane-generating pit equipment for the biological treatment of city dirt.

The utility model content

In view of this, in order to address the above problem, the utility model discloses a kind of methane-generating pit, simple in structure, construction and running cost are cheap.

The purpose of the utility model is achieved in that methane-generating pit; Comprise the digestion chamber; The top of digestion chamber is provided with dirt inlet and methane outlet; The indoor dividing plate by an inclination of gastrovascular cavity is divided into chamber up and down, and said dividing plate is higher than apart from a dirt inlet end far away apart from the nearer end of dirt inlet, the connected entrance of chamber about a minimum end of dividing plate is provided with and is communicated with.

Further, also comprise pond material recycle pump, the inlet pipe of said pond material recycle pump is communicated with the lower chambers bottom of digestion chamber, and the pipe that goes out of pond material recycle pump is communicated with the dirt inlet of dirty chamber of collection and digestion chamber.

Further, also comprise the dirty chamber of a collection, be used to accumulate storage and get into the dirt before the methane-generating pit that also comprise the dirty shifting pump of a collection, the inlet pipe of the dirty shifting pump of said collection is communicated with the dirty chamber of collection, go out pipe and be positioned at the dirt that digests chamber and enter the mouth and be communicated with.The dirty chamber of said collection also comprises the ventilative pipeline that is communicated with air collecting chamber that its top is provided with.

Further, also comprise apparatus cavity, said pond material recycle pump is arranged in the apparatus cavity with the dirty shifting pump of collection.

Further, long-pending dirty shifting pump has been installed also in the said apparatus cavity, the inlet pipe of long-pending dirty shifting pump is communicated with the long-pending dirty transfer pipeline road junction of the dirty cavity bottom of collection, and the pipe that goes out of long-pending dirty shifting pump is communicated with the dirt inlet that digests chamber upper chamber top.

Further, said digestion chamber upper chamber is divided into voltage stabilizing and air collecting chamber by body of wall, and the pressure stabilizing cavity bottom is communicated with lower chambers through regulator hole, and the pressure stabilizing cavity top is provided with the supernatant water spillway.

Further; Said digestion chamber upper chamber is divided into voltage stabilizing and air collecting chamber by body of wall; The pressure stabilizing cavity bottom is communicated with lower chambers through regulator hole; The pressure stabilizing cavity top is provided with the supernatant water spillway, and the separation body of wall bottom of voltage stabilizing and air collecting chamber also is provided with safe air pressure air permeable belt, and said safe air pressure air permeable belt is by the brick one-tenth of ventilation property.

Further, said lower chambers top is communicated with the air collecting chamber that digests chamber top through ventilative pipeline.

Further, said air collecting chamber is provided with and external communications biogas output channel.

Further; The biogas output channel passes apparatus cavity by the air collecting chamber top, and safety check valve, biogas pressure demonstration and automatic control signal output meter, biogas output relief valve, biogas output flow strapping table and output control main valve are installed on the biogas output tube in apparatus cavity successively.

The beneficial effect of the utility model is following:

1) simple in structure, laid down cost is low;

2) recycle pump is set, the conversion rate of the biological transformation ratio that expect in the pump circulation raising pond that utilizes the pond to expect with gas peak ON cycle pump, can make the not biogas bubble quickening effusion of release in the material of pond, stablizes output pressure;

3) the dirty chamber of collection is set; Make the sewage slurry in the cumulative process of the dirty chamber of collection, produce deposition; Utilize long-pending dirty shifting pump quantitatively its deposition to be transferred to the digestion chamber; Through improving the useful volume that digestion chamber input concentration increases substantially methane-generating pit, when reducing the methane-generating pit inflow-rate of water turbine significantly, improve the temperature equilibrium point of methane-generating pit, reduce the methane-generating pit operation energy consumption significantly;

4) pressure stabilizing cavity is set, cooperates recycle pump can perfectly regulate the biogas air pressure of methane-generating pit, play pressure stabilization function.

Description of drawings

For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below:

Fig. 1 shows digester horizontal section synoptic diagram;

Fig. 2 shows digester longitudinal profile synoptic diagram

Fig. 3 shows the partial cutaway schematic of material loop structure in pond in the digester;

Fig. 4 shows the partial cutaway schematic of lower chambers and air collecting chamber connectivity structure in the digester;

Fig. 5 shows the partial cutaway schematic that collects dirty chamber and air collecting chamber connectivity structure in the digester.

Embodiment

Below will carry out detailed description to the preferred embodiment of the utility model.

Referring to Fig. 1-Fig. 5, said digester is used to store and digest the dirt that the shunting well array goes out, and the organism in the dirt is carried out the bio anaerobic digestion process and produces biogas.Said digester comprises the dirty chamber of collection 803, apparatus cavity 804, metering house 805 and digestion chamber; The position of the dirty chamber 803 of said collection is in the lowest part of methane-generating pit; Metering house 805, apparatus cavity 804, the dirty chamber of collection are overlapping about in the of 803; Collecting dirty chamber 803 is communicated with sewage slurry introduction pipe through pipeline 802; Said digestion chamber is divided into upper chamber 801 and lower chambers 828 by the dividing plate 830 of an inclination, and said dividing plate 830 is higher than apart from a dirt inlet end far away apart from the nearer end of dirt inlet, the connected entrance 825 of chamber about a minimum end of dividing plate 830 is provided with and is communicated with.Be provided with long-pending dirty shifting pump 810 in the said apparatus cavity 804; The inlet pipe of said long-pending dirty shifting pump 810 is communicated with the dirty chamber 803 of collection; Go out pipe and be communicated with the dirt inlet 812 that is positioned at digestion chamber upper chamber 801, the soil transfer that long-pending dirty shifting pump 810 will collect in the dirty chamber 803 arrives digestion chamber upper chamber 801, and dirt is under action of gravity; Slide along dividing plate 830, get into lower chambers 828 by connected entrance 825; Also be provided with pond material recycle pump 817 in the said apparatus cavity 804; The inlet pipe of said pond material recycle pump 817 is communicated with the lower chambers of digestion chamber; The pipe that goes out of pond material recycle pump 817 is communicated with the inlet that is positioned at digestion chamber upper chamber; Through circulation the biogas that retains in the dirt is overflowed fast, improve biogas air pressure and organic biological fermentation transformation efficiency greatly.For stablizing the biogas output pressure; Comprise a pressure stabilizing cavity 823 in the digestion chamber upper chamber 801; Said pressure stabilizing cavity is separated by body of wall and other part of digestion chamber upper chamber 801; Other part that upper chamber 801 removes pressure stabilizing cavity 823 can be described as air collecting chamber 822, and the body of wall between pressure stabilizing cavity 823 and the air collecting chamber 822 constitutes safe air pressure air permeable belt 827 by brick the building of ventilation property under the pond is pushed up 1.5 meters, thereby makes the high atmospheric pressure of air collecting chamber 822 be no more than 15KPa.

Pressure stabilizing cavity 823 bottoms are communicated with lower chambers 828 through pressure modulating opening 824; Pressure stabilizing cavity 823 tops are provided with supernatant water spillway 829; Digestion chamber upper chamber 801 biogas are pressed when increasing to certain value, and supernatant water is overflowed by supernatant water spillway 829 seepage flow in the pressure stabilizing cavity 823, and the interior biogas of digester this moment presses speedup to reduce; Biogas is pressed when forcing down the digester liquid level to supernatant water spillway 829 water inlet height, and biogas is released by supernatant water spillway 829 and made digester biogas press no longer rising.When the biogas pressure reduced its pressure because of output, supernatant waters were refluxed in lower chambers 828 by pressure modulating opening 824 in the pressure stabilizing cavity 823, and the low speed of biogas pressure drop is slowed down.

When the biogas pressure was reduced to set(ting)value, the electrical signal of pressure transmitter output started long-pending dirty shifting pump 810 and expects recycle pump 817 operations with the pond.Because what long-pending dirty shifting pump 810 was implemented is that material dosing shifts, when the material transfer reached quantitative values, the electrical signal of timing controller output cut off long-pending dirty shifting pump 810 power supplys, and long-pending dirty shifting pump moves and stops.Because the pond expects that the operation of recycle pump 817 is the return difference electrical signal control through pressure transmitter output, after the subatmospheric startup operation that pond material recycle pump 817 is being set, the biogas of air collecting chamber air pressure storage in the material of a large amount of release of material circulation pond, pond steep in air collecting chamber.Under the acting in conjunction of long-pending dirty shifting pump 810 and pond material recycle pump 817; The electrical signal of pressure transmitter output cut off the timing controller power supply of pond material recycle pump 817 electrical source of power and long-pending dirty shifting pump 810 when air collecting chamber air pressure went up to set(ting)value, and two pumps get into waits for running status.

The top in lower chambers 828 and the dirty chamber 803 of collection is communicated with air collecting chamber 822 through ventilative pipeline 834,831 respectively, discharges its top, chamber accumulative biogas.Biogas in the air collecting chamber 822 is exported via instrumentations such as the biogas vacuum breaker of installing in the metering house 805, biogas pressure sensor output, biogas output flow meter, biogas output pressure setters through biogas output tube 837 then.

Be provided with a branch pipe tee connection 818 on the pond material circulating line in apparatus cavity; The threeway delivery port is connection pool material circulating line and scum delivery pipe respectively; A residual cake valve 826 has been installed on the scum delivery pipe; The outlet of scum delivery pipe is lower than 50 centimeters of air collecting chamber 803 interior pond material circulating line outlets, and deslagging carries out when expecting pump operating cycle in the pond, opens residual cake valve 826 during deslagging; The deslagging outlet is lower than 50 centimeters of loop exits to the pond material that extracts from digester lower chambers 828 bottoms because scum pipe is opened, and digester gets into the deslagging running status.The deslagging pipe valve is closed, and during the material pump operating cycle of pond, digester is replied the material circular flow state in the pond.

What the above was merely the utility model preferably is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and the scope of the utility model the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.

Claims

1. methane-generating pit; It is characterized in that: comprise the digestion chamber; The top of digestion chamber is provided with dirt inlet and methane outlet; The indoor dividing plate by an inclination of gastrovascular cavity is divided into chamber up and down, and said dividing plate is higher than apart from a dirt inlet end far away apart from the nearer end of dirt inlet, the connected entrance of chamber about a minimum end of dividing plate is provided with and is communicated with.

2. methane-generating pit as claimed in claim 1 is characterized in that: also comprise pond material recycle pump, the inlet pipe of said pond material recycle pump is communicated with the lower chambers bottom of digestion chamber, and the pipe that goes out of pond material recycle pump is communicated with the dirt inlet of dirty chamber of collection and digestion chamber.

3. methane-generating pit as claimed in claim 2; It is characterized in that: also comprise the dirty chamber of a collection, be used to accumulate storage and get into methane-generating pit dirt before, also comprise the dirty shifting pump of a collection; The inlet pipe of the dirty shifting pump of said collection is communicated with the dirty chamber of collection, goes out pipe and is communicated with the dirt inlet that is positioned at the digestion chamber.The dirty chamber of said collection also comprises the ventilative pipeline that is communicated with air collecting chamber that its top is provided with.

4. methane-generating pit as claimed in claim 3 is characterized in that: also comprise apparatus cavity, said pond material recycle pump is arranged in the apparatus cavity with the dirty shifting pump of collection.

5. methane-generating pit as claimed in claim 4; It is characterized in that: long-pending dirty shifting pump also has been installed in the said apparatus cavity; The inlet pipe of long-pending dirty shifting pump is communicated with the long-pending dirty transfer pipeline road junction of the dirty cavity bottom of collection, and the pipe that goes out of long-pending dirty shifting pump is communicated with the dirt inlet that digests chamber upper chamber top.

6. methane-generating pit as claimed in claim 4 is characterized in that: said digestion chamber upper chamber is divided into voltage stabilizing and air collecting chamber by body of wall, and the pressure stabilizing cavity bottom is communicated with lower chambers through regulator hole, and the pressure stabilizing cavity top is provided with the supernatant water spillway.

7. methane-generating pit as claimed in claim 1; It is characterized in that: said digestion chamber upper chamber is divided into voltage stabilizing and air collecting chamber by body of wall; The pressure stabilizing cavity bottom is communicated with lower chambers through regulator hole; The pressure stabilizing cavity top is provided with the supernatant water spillway, and the separation body of wall bottom of voltage stabilizing and air collecting chamber also is provided with safe air pressure air permeable belt, and said safe air pressure air permeable belt is by the brick one-tenth of ventilation property.

8. methane-generating pit as claimed in claim 1 is characterized in that: said lower chambers top is communicated with through the air collecting chamber of ventilative pipeline with digestion chamber top.

9. methane-generating pit as claimed in claim 8 is characterized in that: said air collecting chamber is provided with and external communications biogas output channel.

10. methane-generating pit as claimed in claim 9; It is characterized in that: the biogas output channel passes apparatus cavity by the air collecting chamber top, and safety check valve, biogas pressure demonstration and automatic control signal output meter, biogas output relief valve, biogas output flow strapping table and output control main valve are installed on the biogas output tube in apparatus cavity successively.