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Combined temperature increasing device and method by anaerobic degesting greenhouse

A solar water heater and anaerobic digestion technology, applied in anaerobic digestion treatment, biochemical equipment and methods, bioreactor/fermentation tank combination, etc., can solve the problems of high energy consumption and poor economy, and achieve energy saving, Efficient anaerobic digestion, the effect of improving efficiency and economy

Inactive Publication Date: 2009-02-04
赤峰元易生物质科技有限责任公司
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Problems solved by technology

[0006] In order to overcome the disadvantages of high energy consumption and poor economy of conventional heating methods (boiler steam heating, electric heating, burning natural gas or biogas heating, etc.), the present invention proposes a greenhouse-solar water heater combined warming device and method for improving anaerobic Digestion temperature and digestion effect rate, saving energy consumed by heating and heat preservation, thereby improving the production efficiency and economy of anaerobic digestion

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  • Combined temperature increasing device and method by anaerobic degesting greenhouse
  • Combined temperature increasing device and method by anaerobic degesting greenhouse
  • Combined temperature increasing device and method by anaerobic degesting greenhouse

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example 1

[0030] Example 1: Example 1 is one of the embodiment examples of the present invention, but this patent is not limited thereto.

[0031] The total surface area of ​​the greenhouse used in the present invention is 10.414m 2 . The solar water heater adopts a vacuum tube heat pipe water heater, has 24 lighting tubes, a power of 840W, and a water storage tank of 160 liters. The reactor is an anaerobic sequencing batch reactor (ASBR), which is made of carbon steel. The operating process parameters are: water inflow for 15 minutes, reaction for 20 hours, precipitation for 3.5 hours, and water outlet for 15 minutes; the operation time of a cycle is 24 hours. Use clean water to simulate anaerobic digestion of materials. Pneumatic stirring is used to pump the gas from the top of the reactor to the bottom once every hour through the air pump, and the gas diffuses into the water through the gas diffuser installed at the bottom to form bubbles and agitate. Temperature sensors are insta...

example 2

[0034] Example 2: Example 2 is one of the embodiment examples of the present invention, but this patent is not limited thereto.

[0035] In summer, a high-temperature anaerobic digestion simulation test is adopted, and the temperature is set at 50°C. Others are the same as in Example 1.

[0036] In a typical daily time change, the average temperature in the anaerobic digestion reactor is maintained at 33-36°C, with an average of 35.27°C, and the temperature increase effect is good. When the climatic conditions are good, the controlled temperature fully meets the temperature requirements of mesophilic high-efficiency anaerobic digestion. In a period of diurnal variation, although there were three obvious fluctuations in the ambient temperature due to climate reasons, the temperature in the anaerobic digestion reactor remained at 31-36°C, with an average of 34.05°C. This system has good control and adjustment ability for climate change in spring and autumn, and can keep the tem...

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Abstract

The present invention is combined heating device and method with both greenhouse and solar water heater for anaerobic digesting, belongs to the field of anaerobic digesting technology, and aims at lowering the power consumption and raising the economic performance of anaerobic digesting. The anaerobic digesting apparatus includes greenhouse and solar water heater, and has digesting reactor set inside the greenhouse, temperature sensors set in the greenhouse and the solar water heater separately, controller, hot water pump and heat exchanger inside the digesting reactor. The present invention can utilize solar energy alone to maintain the anaerobic digesting reactor operating at medium temperature or high temperature.

Description

technical field [0001] The invention relates to a method for increasing temperature by utilizing a combination of a greenhouse and a solar water heater, and belongs to the technical field of anaerobic digestion. Background technique [0002] Anaerobic digestion technology converts crop straw, livestock manure, municipal sludge and other wastes into renewable and clean energy—biogas, which is one of the effective ways to realize the harmless treatment and energy utilization of organic waste. [0003] Temperature is one of the most important factors affecting anaerobic digestion. Anaerobic digestion has two high-efficiency digestion temperature sections, that is, the medium-temperature digestion section (30-35°C) and the high-temperature digestion section (50-55°C) (edited by Zhang Zijie. Drainage Engineering: Volume 2 [M], 4th Edition. Beijing: China Architectural Industry Press, 1997, 357.). In these two temperature ranges, anaerobic digestion can obtain the highest digest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/107C12M1/36C02F3/28C02F11/04
CPCC12M41/24C12M41/12C12M43/00C12M21/04C12M23/18Y02P20/59Y02W10/37
Inventor 李秀金司传海苏曼张华刘文海朱保宁
Owner 赤峰元易生物质科技有限责任公司
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