Bioenergetic installation

FIELD: agriculture; bioenergetic installations for processing organic waste materials of the farm-production in the anoxic conditions.

SUBSTANCE: the invention is pertaining to the field of agriculture, in particular, to the installations for processing organic waste materials of the farm-production in then anoxic conditions and may be used for production of the biogas. The bioenergetic installation contains: the methane-tank with the water jacket, the heat insulation, the stirrer, the loading and unloading connecting pipes, the pipe ducts of the biogas feeding and the gas-holder. The installation is supplied with the helio-collector, the electrical water-heater and the Sterling engine in the form of the thermomechanical generator with the biogas burner, which is arranged on the side of the engine bottom and connected to the pipe duct for feeding of the biogas from the gas-holder. In the Sterling engine the heat energy of the biogas burning in the biogas burner is converted into the electric power and used for heating of the biomass fermented in the methane-tank up to the necessary temperature and provision of the continuous operation of the system in the periods of absence of the solar energy-radiation{sunlight}. The invention ensures the stand-alone power supply of the local customers in the rural area with the combined utilization of the solar energy and the power of the biomass.

EFFECT: the invention ensures the stand-alone power supply of the local customers in the rural area with the combined utilization of the solar energy and the power of the biomass.

2 dwg

 

The invention relates to agriculture, namely the facilities for processing organic waste agricultural production under anaerobic conditions, and can be used for biogas production from organic waste.

Known installation for the production of biogas from organic waste, in particular, providing for heating of fermentation substrates using solar energy and contains the digester, solar collectors, heat exchangers, tank, compressor, valves, boiler, pumps, sump, and control valves (R.A. Amerkhanov, Bessarab A.S., Draganov KAPYSHEV, Rudobashta S. p., Shishko, Heat and power installations and systems of agriculture. - M.: Kolos-Press, 2002, s, RES).

Also known bioenergetics containing the digester, solar energy collector, heater fermented mass (A.S. USSR №1745707, BI No. 25, 1992).

Known bioenergetics using solar energy for heating the fermentation biomass containing digester system for loading and unloading biomass, solar collector pipelines (A.S. USSR №1527191, 06.07.1987).

The closest in technical essence to the proposed installation is a bio-energy plant that contains the digester with the water jacket, insulation, stirrer, inlet and viruson the m nozzles, the piping for the exhaust gas, a boiler, a supply pipe biogas and gas tank (A.S. No. 1733407, MKI 02 F 11/04, published 15.05.1992).

The disadvantage of bioenergetics is the inability to provide stable heating fermentable substrate and providing a guaranteed minimum supply local consumers in the absence of a centralized source of electrical energy, since the amount of heat received by the earth from solar radiation varies widely depending on local climatic conditions.

The task of the invention is to provide stable heating fermentable substrate and the guaranteed minimum Autonomous energy supply local consumers in the absence of a centralized source of electrical energy.

In use of the present invention increases the efficiency and reliability of bioenergy plant for producing biogas in the absence of a centralized source of electrical energy, there is a possibility of direct conversion of thermal energy of the combusted biogas into electrical energy and providing a guaranteed minimum supply local consumers.

The above technical result dost is presumed to those that bioenergy installation comprising a digester with water jacket, insulation, stirrer, inlet and outlet pipes, pipes for exhaust gas, a boiler, a supply pipe biogas and gas tank, equipped with solar collectors, electric water heater and a Stirling engine in the form of thermo-mechanical generator located from the bottom of the engine biogas burner, which is connected with a pipe for feeding biogas gas in the Stirling engine thermal energy biogas combusted in the burner biogas is converted into electrical energy and is used for heating the fermentation in the digester biomass to the desired temperature and ensure continuous system operation during periods of incoming solar radiation.

Produced by the Stirling engine in the form of thermo-mechanical generator electricity is used partly for heating the digester through the heater, the rest of the produced electric energy is to ensure a guaranteed minimum supply local consumers.

The invention is illustrated figure 1 and figure 2.

Figure 1 is a flow diagram of an Autonomous power plant to produce biogas and electricity is the power.

Figure 2 shows the design of thermomechanical generator - Stirling engine in combination with a biogas burner.

The apparatus comprises a tank 1, the exhaust tube biogas 2 digester 3 with the water jacket 4, a mixer 5 and insulated 6 boot 7 and outlet 8 nozzles, tank battery 9 and the valve 10 hot water, flat solar collectors 11, water pipelines 12 and 13, a heater 14, a biogas burner 15 and the supply line 16 biogas, the Stirling engine 17 and the electrical connection 18.

The Stirling engine, which is a heat engine, made in the form of thermo-mechanical generator, which unlike conventional Stirling engine working and displacer pistons (Kudrin I. high-temperature Solar space power installed. Edited Vspleskov. - M.: Mashinostroenie, 1987. - 248 S.) has the following features:

- no crank mechanism and full insulation from both ends of the cylinder, because the unit contains no rods or any other levers connected with the pistons;

- working piston is replaced by a metal diaphragm.

Used in bioenergy installation design of thermomechanical generator in combination with a biogas burner are presented in figure 2. and contains the heat sink 19, the coils 20 and the armature 21 of the generator, the aperture 22, the spring 23, the cylinder 24, the displacer 25, the cooling coil 26 and a biogas burner 27.

Duty cycle thermomechanical generator identical to the cycle of the Stirling engine working and displacer pistons, except that here the displacer 25 is actuated by a spring 23 located between it and the cylinder body 24. A closed metal cylinder containing the working fluid of the engine, is heated from the bottom biogas burner 27 and is cooled on the outer side of the diaphragm 22, located in the upper part of the cylinder, a cooling coil 26 with a heat sink 19. The metal diaphragm 22 made of stainless steel and installed in thermo-mechanical generator instead of the working piston moves in the cylinder 24 up and down. This aperture varies by changing the pressure of the working fluid in the cylinder. The diaphragm is rigidly connected to the anchor (a permanent magnet) 21 that performs oscillatory motion in the winding 20 of the generator, exciting electric current. Need to install the springs for actuating the displacer due to the fact that the diaphragm oscillates with an amplitude that does not exceed a few millimeters. The action of the spring connected to the displacer, allows the system to Soviet resonant vibrations at frequencies which, equal to the natural frequency of the system. The oscillation frequency is adjusted by selection of the spring and the moving mass, which allows you to "adjust" to any frequency in the power supply system.

The operation of bioenergy installations in accordance with the flow diagram presented in figure 1, is as follows.

The initial biomass in the form of organic animal waste through the feeding pipe 7 is loaded into the digester 3 with the water jacket 4, a mixer 5 and the insulation 6.

The required temperature of the process of anaerobic methane fermentation of biomass in the digester 3 is provided by converted into thermal energy in the solar collectors 11 solar energy: heated in the solar collectors 11 and accumulated in the tank 9 water through the valve 10 and hot water piping water 12 flows into the water jacket 4 of the digester 3.

In the process of anaerobic bacterial decomposition of organic substances biomass in the digester 3 releases biogas, through which the exhaust tube biogas 2 enters and accumulates in the tank 1.

Following is the utilization of the produced biogas, part of the produced biogas is used by direct combustion in domestic heating gas appliances; part of it is as necessary, in periodically receipt of solar radiation, by pipeline to supply biogas 16 for the combustion of the biogas burner 15 located on the side of the bottom of the Stirling engine 17. In the Stirling engine in the form of thermo-mechanical generator thermal energy biogas combusted in the burner biogas is converted into electrical energy. Thus obtained electric energy through the electric heater 14 and the piping of water 13 is used for heating the fermentation in the digester biomass to the desired temperature and maintain it in continuous mode. Next, the process of development and use of biogas and electricity continues as described above.

Given that currently, the high cost of production and distribution of electricity attract attention of local fuel and energy resources, the use of bioenergy plants with Stirling engine in the form of thermo-mechanical generator can significantly increase the level of power supply of consumers in the absence of a centralized power supply.

Bio-energy installation comprising a digester with water jacket, insulation, stirrer, inlet and outlet pipes, pipelines feeding of biogas and gas tank, characterized in that it is equipped with solar collectors, the heater and the motor is Telem Stirling in the form of thermo-mechanical generator located from the bottom of the engine biogas burner, which is connected with a pipe for feeding biogas gas in the Stirling engine thermal energy biogas combusted in the burner biogas is converted into electrical energy and is used for heating the fermentation in the digester biomass to the desired temperature and ensure continuous system operation during periods of incoming solar radiation.



 

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FIELD: biotechnological processes.

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EFFECT: reduced expenses for manure reprocessing, delivery and dispensing of bird dung for feeding of animals.

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FIELD: agricultural engineering, in particular, machines for spreading of organic fertilizer from windrows.

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EFFECT: increased efficiency by uniform spreading of organic fertilizers over soil surface, and improved granulometric composition of organic fertilizer.

2 dwg

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