CN203923197U - A kind of integrated two-phase anaerobic device for producing methane by fermentation - Google Patents
A kind of integrated two-phase anaerobic device for producing methane by fermentation Download PDFInfo
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- CN203923197U CN203923197U CN201420364141.7U CN201420364141U CN203923197U CN 203923197 U CN203923197 U CN 203923197U CN 201420364141 U CN201420364141 U CN 201420364141U CN 203923197 U CN203923197 U CN 203923197U
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- 238000000855 fermentation Methods 0.000 title claims abstract description 70
- 230000004151 fermentation Effects 0.000 title claims abstract description 52
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title 2
- 239000002893 slag Substances 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000005903 acid hydrolysis reaction Methods 0.000 claims abstract description 11
- 238000006477 desulfuration reaction Methods 0.000 claims 1
- 230000023556 desulfurization Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 8
- 239000002028 Biomass Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
本实施例公开一体化两相厌氧发酵产沼气装置，属于生物能源技术领域；包括脱硫器、导气管、水压间、发酵间、连通孔、进料口、电磁阀Ⅰ、酸解间、酸度传感器、排渣口、PLC控制器、电磁阀Ⅱ；脱硫器通过导气管和发酵间连接，水压间通过连通孔和发酵间相连通，酸解间和酸度传感器位于发酵间的内部，酸解间的顶端设有进料口，下端设有电磁阀Ⅰ，发酵间的一端设有排渣口，排渣口处设有电磁阀Ⅱ，PLC控制器和酸度传感器连接，PLC控制器和电磁阀Ⅱ连接；本实用新型可大大提高两相厌氧发酵系统的稳定性和发酵效率，提高产气量。
This embodiment discloses an integrated two-phase anaerobic fermentation biogas production device, which belongs to the field of bioenergy technology; including a desulfurizer, an air duct, a water pressure room, a fermentation room, a communication hole, a feed port, a solenoid valve I, an acid hydrolysis room, Acidity sensor, slag discharge port, PLC controller, solenoid valve II; the desulfurizer is connected to the fermentation room through the air duct, the water pressure room is connected to the fermentation room through a communication hole, the acid hydrolysis room and the acidity sensor are located inside the fermentation room, and the acidity There is a feed inlet at the top of the fermentation room, a solenoid valve Ⅰ at the bottom, a slag discharge port at one end of the fermentation room, and a solenoid valve Ⅱ at the slag discharge port. The PLC controller is connected to the acidity sensor, and the PLC controller is connected to the electromagnetic valve. Valve II connection; the utility model can greatly improve the stability and fermentation efficiency of the two-phase anaerobic fermentation system, and increase the gas production.
Description
技术领域 technical field
本实用新型涉及一种一体化两相厌氧发酵产沼气装置，属生物能源技术领域。 The utility model relates to an integrated two-phase anaerobic fermentation biogas production device, which belongs to the technical field of biological energy.
技术背景 technical background
能源匮乏和环境污染对全球的影响都日益突出，世界各国开始将目光聚集到新能源和可再生能源领域。在太阳能、核能、风能、水能、潮汐能、地热能、生物质能等诸多新能源和可再生能源当中，生物质能源是最安全、最稳定的能源，人们开始最大限度地利用生物质资源补充能源的不足，同时还能消除生物质废弃物对环境的污染，而沼气发酵技术则是能将生物质资源多层次转化为能源沼气和优质有机肥，是生物质能源化、资源化利用的一种有效途径。为了提高沼气发酵效率和稳定性，人们研究了各种各样的方法和措施。目前，沼气发酵技术主要有单相厌氧和两相厌氧发酵两种技术，两相厌氧发酵技术具有发酵速度快和系统运行稳定等优点，但这种工艺也存在一些亟待解决的问题，如酸化物料进入沼气发酵罐的速率控制不好，容易引起酸化，抑制产气效率，如何解决酸解速率与沼气发酵速率是实现两相厌氧发酵高效产沼气的关键。 The impact of energy shortage and environmental pollution on the world has become increasingly prominent, and countries around the world have begun to focus on the field of new energy and renewable energy. Among many new and renewable energy sources such as solar energy, nuclear energy, wind energy, water energy, tidal energy, geothermal energy, and biomass energy, biomass energy is the safest and most stable energy source, and people are beginning to maximize the use of biomass resources Supplement the shortage of energy, and at the same time eliminate the pollution of biomass waste to the environment, while the biogas fermentation technology can convert biomass resources into energy biogas and high-quality organic fertilizer at multiple levels, which is the first choice for biomass energy and resource utilization an effective way. In order to improve the efficiency and stability of biogas fermentation, various methods and measures have been studied. At present, biogas fermentation technologies mainly include single-phase anaerobic fermentation and two-phase anaerobic fermentation. Two-phase anaerobic fermentation technology has the advantages of fast fermentation speed and stable system operation, but this process also has some problems that need to be solved urgently. If the rate of acidified materials entering the biogas fermentation tank is not well controlled, it is easy to cause acidification and inhibit the efficiency of gas production. How to solve the rate of acidification and biogas fermentation rate is the key to achieve efficient biogas production by two-phase anaerobic fermentation.
发明内容 Contents of the invention
本实用新型的目的在于克服现有技术之不足，提供一种一体化两相厌氧发酵产沼气装置，通过酸化和发酵产沼气的速率优化匹配，从而实现高效厌氧发酵产沼气。 The purpose of the utility model is to overcome the deficiencies of the prior art and provide an integrated two-phase anaerobic fermentation biogas production device, which realizes high-efficiency anaerobic fermentation biogas production by optimizing and matching the rates of acidification and fermentation biogas production.
本实用新型通过以下技术方案来实现：所述一体化两相厌氧发酵产沼气装置包括脱硫器1、导气管2、水压间3、发酵间4、连通孔5、进料口6、电磁阀Ⅰ7、酸解间8、酸度传感器9、排渣口10、PLC控制器11、电磁阀Ⅱ12；脱硫器1通过导气管2和发酵间4连接，脱硫后的沼气通至沼气用户；水压间3通过连通孔5和发酵间4相连通，发酵料液可以相互流动；酸解间8和酸度传感器9位于发酵间4的内部，酸解间8的顶端设有进料口6，下端设有电磁阀Ⅰ7，发酵间4的一端设有排渣口10，排渣口10处设有电磁阀Ⅱ12，可根据需要进行定时排渣，PLC控制器11和酸度传感器9连接，PLC控制器11和电磁阀Ⅱ12连接。 The utility model is realized through the following technical solutions: the integrated two-phase anaerobic fermentation biogas production device includes a desulfurizer 1, an air duct 2, a water pressure room 3, a fermentation room 4, a communication hole 5, a feed port 6, an electromagnetic Valve Ⅰ7, acid hydrolysis room 8, acidity sensor 9, slag outlet 10, PLC controller 11, solenoid valve Ⅱ12; desulfurizer 1 is connected to fermentation room 4 through air duct 2, and desulfurized biogas is passed to biogas users; water pressure The room 3 is connected with the fermentation room 4 through the communication hole 5, and the fermentation feed liquid can flow mutually; the acidolysis room 8 and the acidity sensor 9 are located inside the fermentation room 4, and the top of the acidolysis room 8 is provided with a feed port 6, and the lower end is provided with a There is a solenoid valve I7, one end of the fermentation room 4 is provided with a slag discharge port 10, and a solenoid valve II12 is provided at the slag discharge port 10, which can perform regular slag discharge according to needs. The PLC controller 11 is connected to the acidity sensor 9, and the PLC controller 11 Connect with solenoid valve II12.
本实用新型所述发酵间4的主体为一圆柱体，底部为圆锥体，底部一侧通过连通孔5与水压间3底部连接；本实用新型所述酸解间8的主体为圆柱体结构，底部为圆锥体结构。 The main body of the fermentation room 4 described in the utility model is a cylinder, the bottom is a cone, and one side of the bottom is connected to the bottom of the water pressure room 3 through the communication hole 5; the main body of the acid solution room 8 described in the utility model is a cylindrical structure , with a conical structure at the bottom.
本事实用新型的工作过程为：首先关闭酸解间8的电磁阀Ⅰ7，打开发酵间4的电磁阀Ⅱ12；然后在发酵间4中加入发酵产沼气所需的富含产甲烷菌并加水至预先设定的液位，同时在酸解间8中加入富含产酸菌的接种物，并从进料口6投入发酵物料，将液位调至高于发酵间液位一定高度的位置。关闭电磁阀Ⅱ12，酸解间8的物料开始发生酸解生化反应，酸解24小时后，通过PLC控制器11打开电磁阀Ⅰ7（属于本领域常规技术），酸化物料进入发酵间4，当发酵4的料液pH值小于6.5时，电磁阀Ⅰ7关闭，开始进行厌氧发酵产沼气，产生的沼气将料液压至水压间，当沼气被沼气用户使用后料液返回发酵间；当酸度传感器9检测到发酵间料液的pH上升至8以上时，PLC控制器11向电磁阀Ⅰ7和电磁阀Ⅱ12发出打开指令，酸解间8的物料又进入发酵间4，同时发酵残渣从排渣口10排出发酵间。当整个系统运行平稳后，即可通过PLC控制器11设定的程序进行进料和出料自动控制，实现两相厌氧高效产沼气；在此期间，可根据酸解间8中的物料消耗情况，进行补充原料即可。 The working process of this utility model is as follows: firstly close the solenoid valve Ⅰ7 of the acid hydrolysis room 8, open the solenoid valve Ⅱ12 of the fermentation room 4; At the same time, the inoculum rich in acid-producing bacteria is added to the acid hydrolysis room 8, and the fermentation material is put in from the feed port 6, and the liquid level is adjusted to a position higher than the liquid level of the fermentation room by a certain height. Close the solenoid valve II12, and the acidolysis biochemical reaction begins to occur in the material in the acidolysis room 8. After 24 hours of acidolysis, the solenoid valve I7 (belonging to the conventional technology in this field) is opened through the PLC controller 11, and the acidified material enters the fermentation room 4. When the fermentation 4. When the pH value of the feed liquid is less than 6.5, the solenoid valve Ⅰ7 is closed, and anaerobic fermentation begins to produce biogas. The generated biogas will press the feed pressure to the water pressure room. When the biogas is used by the biogas user, the feed liquid returns to the fermentation room; when the acidity sensor 9 When it is detected that the pH of the feed liquid in the fermentation room rises above 8, the PLC controller 11 sends an opening command to the solenoid valve I7 and solenoid valve II12, and the material in the acidolysis room 8 enters the fermentation room 4, and the fermentation residue is discharged from the slag discharge port. 10 out of the fermentation room. When the whole system runs smoothly, the automatic control of feeding and discharging can be carried out through the program set by the PLC controller 11 to realize two-phase anaerobic high-efficiency biogas production; If necessary, add raw materials.
本实用新型与现有技术相比具有下列优点和效果：采用上述方案，可大大提高两相厌氧发酵系统的稳定性和发酵效率，提高产气量。 Compared with the prior art, the utility model has the following advantages and effects: the above scheme can greatly improve the stability and fermentation efficiency of the two-phase anaerobic fermentation system, and increase the gas production.
附图说明 Description of drawings
图1为本实用新型之结构示意图。 Fig. 1 is the structural representation of the utility model.
图中，1-脱硫器；2-导气管；3-水压间；4-发酵间；5-连通孔；6-进料口；7-电磁阀Ⅰ；8-酸解间；9-酸度传感器；10-排渣口；11-PLC控制器；12-电磁阀Ⅱ。 In the figure, 1-desulfurizer; 2-air duct; 3-water pressure room; 4-fermentation room; 5-communication hole; 6-feed inlet; 7-solenoid valve I; Sensor; 10-slag outlet; 11-PLC controller; 12-solenoid valve II.
具体实施方式：Detailed ways:
下面结合附图和实施例对本实用新型做进一步描述，但本实用新型的保护范围不限于所述内容。 The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the utility model is not limited to the content.
实施例1 Example 1
本实用新型通过以下技术方案来实现：所述一体化两相厌氧发酵产沼气装置包括脱硫器1、导气管2、水压间3、发酵间4、连通孔5、进料口6、电磁阀Ⅰ7、酸解间8、酸度传感器9、排渣口10、PLC控制器11、电磁阀Ⅱ12；脱硫器1通过导气管2和发酵间4连接，脱硫后的沼气通至沼气用户；水压间3通过连通孔5和发酵间4相连通，发酵料液可以相互流动；酸解间8和酸度传感器9位于发酵间4的内部，酸解间8的顶端设有进料口6，下端设有电磁阀Ⅰ7，发酵间4的一端设有排渣口10，排渣口10处设有电磁阀Ⅱ12，可根据需要进行定时排渣，PLC控制器11和酸度传感器9连接，PLC控制器11和电磁阀Ⅱ12连接。 The utility model is realized through the following technical solutions: the integrated two-phase anaerobic fermentation biogas production device includes a desulfurizer 1, an air duct 2, a water pressure room 3, a fermentation room 4, a communication hole 5, a feed port 6, an electromagnetic Valve Ⅰ7, acid hydrolysis room 8, acidity sensor 9, slag outlet 10, PLC controller 11, solenoid valve Ⅱ12; desulfurizer 1 is connected to fermentation room 4 through air duct 2, and desulfurized biogas is passed to biogas users; water pressure The room 3 is connected with the fermentation room 4 through the communication hole 5, and the fermentation feed liquid can flow mutually; the acidolysis room 8 and the acidity sensor 9 are located inside the fermentation room 4, and the top of the acidolysis room 8 is provided with a feed port 6, and the lower end is provided with a There is a solenoid valve I7, one end of the fermentation room 4 is provided with a slag discharge port 10, and a solenoid valve II12 is provided at the slag discharge port 10, which can perform regular slag discharge according to needs. The PLC controller 11 is connected to the acidity sensor 9, and the PLC controller 11 Connect with solenoid valve II12.
实施例2 Example 2
本实用新型通过以下技术方案来实现：所述一体化两相厌氧发酵产沼气装置包括脱硫器1、导气管2、水压间3、发酵间4、连通孔5、进料口6、电磁阀Ⅰ7、酸解间8、酸度传感器9、排渣口10、PLC控制器11、电磁阀Ⅱ12；脱硫器1通过导气管2和发酵间4连接，脱硫后的沼气通至沼气用户；水压间3通过连通孔5和发酵间4相连通，发酵料液可以相互流动；酸解间8和酸度传感器9位于发酵间4的内部，酸解间8的顶端设有进料口6，下端设有电磁阀Ⅰ7，发酵间4的一端设有排渣口10，排渣口10处设有电磁阀Ⅱ12，可根据需要进行定时排渣，PLC控制器11和酸度传感器9连接，PLC控制器11和电磁阀Ⅱ12连接。 The utility model is realized through the following technical solutions: the integrated two-phase anaerobic fermentation biogas production device includes a desulfurizer 1, an air duct 2, a water pressure room 3, a fermentation room 4, a communication hole 5, a feed port 6, an electromagnetic Valve Ⅰ7, acid hydrolysis room 8, acidity sensor 9, slag outlet 10, PLC controller 11, solenoid valve Ⅱ12; desulfurizer 1 is connected to fermentation room 4 through air duct 2, and desulfurized biogas is passed to biogas users; water pressure The room 3 is connected with the fermentation room 4 through the communication hole 5, and the fermentation feed liquid can flow mutually; the acidolysis room 8 and the acidity sensor 9 are located inside the fermentation room 4, and the top of the acidolysis room 8 is provided with a feed port 6, and the lower end is provided with a There is a solenoid valve Ⅰ7, one end of the fermentation room 4 is provided with a slag discharge port 10, and a solenoid valve Ⅱ12 is provided at the slag discharge port 10, and the slag discharge can be carried out at regular intervals as required. The PLC controller 11 is connected to the acidity sensor 9, and the PLC controller 11 Connect with solenoid valve II12.
本实用新型所述发酵间4的主体为一圆柱体，底部为圆锥体，底部一侧通过连通孔5与水压间3底部连接；本实用新型所述酸解间8的主体为圆柱体结构，底部为圆锥体结构。 The main body of the fermentation room 4 described in the utility model is a cylinder, the bottom is a cone, and one side of the bottom is connected to the bottom of the water pressure room 3 through the communication hole 5; the main body of the acid solution room 8 described in the utility model is a cylindrical structure , with a conical structure at the bottom.
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