Unlock instant, AI-driven research and patent intelligence for your innovation.

Medium-low pluripotential complementary methane generating system

A technology of biogas power generation and low temperature, which is applied in wind power generation, fuel oil system, gaseous engine fuel, etc. It can solve the problems of large temperature difference between day and night, single heating energy source of biogas fermentation system, and large fluctuation of solar radiation intensity, so as to ensure stability Effect

Inactive Publication Date: 2012-07-04
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in my country's medium and low temperature regions, large and medium-sized biogas projects still have low gas production rate of the biogas fermentation system under low temperature conditions, a single source of heating energy for the biogas fermentation system under low temperature conditions, poor stability of the biogas power generation system, and the integration capacity of complete sets of biogas power generation equipment. and operational level to be improved and many other issues
The traditional wind energy complementary biogas power generation system and solar complementary fermentation system use wind energy and solar energy complementary methods to provide energy for the heating of the biogas fermentation system, but the intensity of solar radiation fluctuates greatly, the temperature difference between day and night is large, and the independent heating method of solar energy is difficult to meet the requirements of biogas fermentation. Temperature requirements; and the wind power generation system is affected by the climate, and the wind power generation has great instability and volatility, which seriously restricts the normal operation of the wind energy complementary biogas power generation system. How to ensure the stable and efficient operation of the biogas fermentation system throughout the year It has become an urgent problem to be solved in the large-scale promotion of biogas

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medium-low pluripotential complementary methane generating system
  • Medium-low pluripotential complementary methane generating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The minimum design temperature of the system during normal operation is minus 12°C. Livestock and poultry manure (cow manure, pig manure, chicken manure) and sewage are pretreated through grille 1 and regulating tank 2. When the system operates at low temperature, In order to improve the fermentation effect of the reactor, it is necessary to increase the temperature of the fermentation unit and heat preservation measures. The temperature increase of the fermentation system is mainly realized by increasing the temperature of the anaerobic tank and the temperature of the fermentation raw materials. The heat sources of the temperature increase come from the following three aspects: :

[0033] - solar energy: on the one hand by building a solar greenhouse 31 outside the regulating pool 2 and adopting the hot water in the solar heating system. The first coil heat exchanger 14 is set in the adjustment tank 2 to heat the raw materials in the adjustment tank 2 and pre-increase ...

Embodiment 2

[0038] When the system is running in the non-heating season, in order to ensure the temperature of the fermentation liquid in the fermentation tank, the measures of heating and heat preservation of the fermentation unit are mainly achieved by building a solar greenhouse 31 outside the regulating pool to increase the temperature of the fermentation raw materials entering the reactor. Satisfy the temperature requirement; the pretreated raw material enters the primary anaerobic reactor 3, and the biogas generated after fermentation in the secondary anaerobic reactor 4 enters the desulfurizer 6 through the first air guide pipe 5 for desulfurization, and the gas discharged from the top of the container Enter the condenser through the second air guide pipe 32 for dehydration treatment, enter the gas storage tank 8 through the third air guide pipe 33, pass through the fourth air guide pipe 34, the flame arrester 9 and the fifth air guide pipe 35, and directly use the biogas internal co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a medium-low pluripotential complementary methane generating system, which belongs to the methane generating field. The system belongs to a novel renewable energy resources combined generating system, adopts two-stage CSTR fermentation technology, realizes the annual stable high efficient running of the methane generating system on the condition of medium-low temperature and the lowest overall work condition energy consumption of the pluripotential complementary methane generating system through the complementary optimization integration with a hot pipe solar energy heat collecting unit, a low wind speed wind energy utilizing unit and a waste heat utilizing unit, only renewable energy resources are used and has no secondary pollution.

Description

technical field [0001] The invention relates to the field of biogas power generation, in particular to solar and wind energy combined heating equipment for biogas power generation. Background technique [0002] Environmental damage caused by pollutants from coal-fired power plants has made renewable energy more and more popular. Biogas is a new type of renewable energy, mainly composed of methane and carbon dioxide, usually the contents of which are 55%-70% and 25%-40% respectively. The use of biogas to generate electricity can greatly reduce pollutant emissions, and at the same time, the production and utilization of biogas can effectively reduce the emission of CH4 greenhouse gases released during the natural stacking of organic waste, which is conducive to mitigating the greenhouse effect. Every reduction of 1 ton of CH4 emissions is equivalent to a reduction of 25 tons of CO2 emissions. [0003] In order to ensure the sustainable supply of energy and electricity, my co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F02B63/04F02B43/10F03D9/00C12M1/107C02F11/04F03D9/25
CPCY02T10/32Y02E50/343Y02E10/725C12M23/58Y02E10/72C12M43/00C12M21/04Y02T10/16Y02E50/30Y02P20/59Y02P80/10Y02W10/33Y02W10/37
Inventor 董长青赵芳芳杨勇平王孝强郑宗明杨世关刘文毅
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)