CN206799636U - Wind light mutual complementing biogas production system - Google Patents

Abstract

The utility model relates to a wind-solar complementary biogas production system, comprising a solar thermal power generation device, a wind power generation device, a wind-solar complementary controller, a solar battery, an inverter, a hot water storage tank, and a biogas tank; The photothermal power generation device is connected to the hot water storage tank, the hot water storage tank is connected to the biogas tank, the biogas tank is connected to the solar battery through the inverter, and the solar battery is connected to the solar thermal power generation and the Wind turbine connection. Beneficial effects: the utility model makes full use of thermal energy and electric energy to solve the problem of increasing the temperature of the biogas tank, and uses solar energy and wind energy to form a wind-solar complementary power supply system to provide electric power for the agitator, electric heater, heat circulation pump and various controllers, making full use of Natural resources, low cost; it not only increases the production of biogas, but also saves a lot of electricity, and at the same time, the excess electricity can be used by users for daily use, which is conducive to sustainable development.

Description

Wind-solar complementary biogas production system

technical field

The utility model belongs to a biogas production system, in particular to a wind-solar complementary biogas production system.

Background technique

At present, the energy shortage is becoming more and more serious, and new energy sources have become the focus of development. Solar energy and wind energy are inexhaustible and ubiquitous, and the complementary power generation of solar energy and wind energy is more effective than single wind or solar power generation. Biogas, as a clean and pollution-free renewable energy, has great development prospects, especially for the vast rural areas of our country, where there are abundant sources of crop straw, poultry manure, etc. Energy issues. The organic combination of solar energy and biomass energy allows the two energy sources to enter the farm at the same time, realizing a new pattern of "producing gas with light and complementing phosgene", which is a cheap, clean, safe and environmentally friendly way in the biogas production system .

The traditional solar biogas production system uses the hot water produced by the solar collector to heat the biogas liquid through the heat exchanger installed in the biogas tank, maintain the temperature, keep fermentation, and generate biogas. In cloudy and rainy days and when there is insufficient sunlight at night, the system cannot continuously provide enough heat for biogas fermentation, which affects the efficiency of biogas fermentation. Especially in most parts of northern my country, the winter temperature is low, the ground temperature is low, and the sunlight time is short. Biogas tanks have problems such as low biogas production rate and low fermentation efficiency. The biogas production system is guaranteed by increasing the area of solar collectors. Fermentation temperature, but this will increase the cost of the system; at the same time, the solar collector cannot provide hot water for the biogas tank at any time, resulting in a decrease in the efficiency of biogas fermentation. The solar thermal energy consumed by the biogas production system is not only lost by heat dissipation on the outer wall of the biogas tank, but more thermal energy is contained in the biogas slurry and biogas residue and is lost with the discharge, which not only causes thermal pollution, but also wastes solar thermal energy. The traditional solar biogas production system does not have a stirrer, resulting in uneven heating of the biogas slurry and low biogas fermentation efficiency; at the same time, the different shape of the stirrer will also cause the biogas slurry to not be stirred evenly, and the temperature distribution is uneven, which affects the efficiency of biogas fermentation. At present, the vast rural areas using solar biogas systems urgently need to solve the above-mentioned technical deficiencies, so as to realize the all-weather application of solar biogas systems and give full play to the advantages of solar biogas systems.

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a biogas production system with wind-solar hybridization, which makes full use of heat energy and electric energy to solve the problem of increasing the temperature of the biogas tank, improves the biogas production rate in winter, and realizes the continuous and efficient production of biogas ; and use solar energy and wind energy to form a wind-solar complementary power supply system to provide power for the agitator, electric heater, thermal cycle pump and various controllers, making full use of natural resources and low cost; it not only increases the production of biogas, but also saves a lot of electric energy , At the same time, the excess power can also be used by users for daily use, which is suitable for family life.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a wind-solar complementary biogas production system, including solar thermal power generation device, wind power generation device, wind-solar hybrid controller, solar battery, inverter, hot water storage tank, biogas tank; it is characterized in that: the solar thermal power generation device is connected to a hot water storage tank, the hot water storage tank is connected to a biogas tank, the biogas tank is connected to a solar battery through an inverter, and the solar battery is The complementary controller is connected with solar thermal power generation and wind power generation devices.

A hot water circulation pump is provided on the hot water pipe connecting the solar thermal power generation device and the hot water storage tank, and the hot water circulation pump is respectively connected with an inverter and a programmable controller.

A hot water heating coil is arranged in the biogas tank, and the hot water heating coil is connected to the hot water storage tank, and a flow meter, a hot water A circulating pump and a solenoid valve are connected with a programmable controller, and the programmable controller is connected with an inverter.

The biogas tank and the hot water storage tank are respectively provided with thermocouples, the thermocouples are connected to a temperature controller, the temperature controller is connected to an inverter, and the temperature controller is connected to a programmable controller.

An electric heater is arranged in the hot water storage tank, and the electric heater is respectively connected with an inverter and a programmable controller.

A stirrer is arranged in the biogas tank, and the stirrer includes a stirring motor and a stirring impeller, and the stirring motor is respectively connected with an inverter and a programmable controller.

The outside of the hot water storage tank and the biogas tank is provided with a rigid polyurethane foam insulation layer.

Compared with the prior art, the utility model has the following beneficial effects: First, energy saving: the wind-solar complementary biogas production system makes full use of thermal energy and electric energy to solve the problem of increasing the temperature of the biogas tank in winter, and utilizes solar energy and wind energy to form a wind-solar complementary power supply system, It provides power for mixers, electric heaters, hot water circulation pumps and various controllers, making full use of natural resources and saving a lot of electric energy. At the same time, the excess electricity generated by solar and wind power can also be used by users for daily use; the second is economy: The operating cost of the whole biogas production system is low. Due to the full use of solar energy and wind energy, the cost of electric energy is reduced. Efficiency and biogas output; Fourth, environmental protection: solar energy and wind energy are clean energy sources without any pollution to the environment.

Description of drawings

Fig. 1 is a schematic diagram of the system connection of the present invention.

In the figure: 1-solar thermal power generation device; 2-wind power generation device; 3-solar hybrid controller; 4-solar battery; 5-inverter; 6-hot water storage tank; 7-thermocouple; 8-flow meter; 9-hot water circulating pump; 10-solenoid valve; 11-hot water pipe; 12-hot water heating coil; 13-outlet; 14-pressure gauge; 15-biogas outlet; 16-stirring motor; 17-stirring impeller; 18-feed inlet; 19-biogas tank; 20-temperature controller; 21-programmable controller; 22-user.

detailed description

Below in conjunction with preferred embodiment, the specific implementation mode provided according to the utility model is described in detail as follows:

As shown in Figure 1, the utility model provides a wind-solar hybrid biogas production system, including solar thermal power generation device 1, wind power generation device 2, wind-solar hybrid controller 3, solar battery 4, inverter 5, hot water storage Case 6, biogas tank 19. The biogas tank 19 is connected to the hot water storage tank 6, and the hot water storage tank 6 is connected to the solar thermal power generation device 1. The battery 4 is connected, and the biogas tank 19 is connected with the solar battery 4 through the inverter 5 . A hot water circulation pump 9 is arranged on the hot water pipe connected between the solar photothermal power generation device 1 and the hot water storage tank 6, and the hot water circulation pump 9 is respectively connected with the inverter 5 and the programmable controller 21. The hot water generated by the thermal power generation device 1 is stored in the hot water storage tank 6 for biogas fermentation. The biogas tank 19 is provided with a hot water heating coil 12 , the hot water heating coil 12 is made of aluminum-plastic composite pipe, and the hot water heating coil 12 is connected with the hot water storage tank 6 . The top of the biogas tank 19 is provided with a biogas outlet 15, the top of the biogas tank 19 is provided with a feed port 18, and the bottom is provided with a discharge port 13. The outside of the hot water storage tank 6 and biogas tank 19 is wrapped with rigid polyurethane foam as an insulation layer. The biogas tank 19 and the hot water storage tank 6 are respectively provided with thermocouples 7 , the thermocouples 7 are connected to a temperature controller 20 , and the temperature controller 20 is connected to the inverter 5 . Agitator is arranged in described biogas tank 19, and described agitator comprises stirring motor 16 and stirring impeller 17, and described stirring motor 16 is connected with inverter 5, programmable controller 21 respectively, and agitator passes programmable controller 21 Control the start and stop, and carry out intermittent stirring. The electric energy generated by the solar photothermal power generation device 1 and the wind power generation device 2 is stored in the solar battery 4, which not only supplies electricity for the stirrer and electric heater at night, continuous rainy days and winter, but also supplies the electromagnetic valve 10 and the hot water circulation pump. 9. The daily power consumption of the temperature controller 20 and the programmable controller 21. The solar battery 4 is connected to the user 22 through the inverter 5 and can be used by the user 22 daily.

The preferred scheme of the present utility model is that thermocouples 7 are respectively arranged in the biogas tank 19 and the hot water storage tank 6, and temperature monitoring is carried out at all times through the temperature controller 20, and the hot water heating coil 12 and the hot water storage tank 6 A flow meter 8, a hot water circulation pump 9 and a solenoid valve 10 are arranged on the hot water pipe 11, and are connected with a programmable controller 21. By monitoring the biogas liquid temperature in the biogas tank and the water temperature of the hot water storage tank 6 on the temperature controller 20, and then feeding back to the programmable controller 21, the speed of the hot water circulating pump, the opening degree of the solenoid valve and the start and stop of the electric heater are adjusted, thereby Control the flow rate to maintain the temperature required for biogas fermentation.

The preferred solution of the present utility model is that an electric heater is arranged in the hot water storage tank 6 to ensure the hot water demand at night, rainy days and winter, and the electric heater is supplied with electric energy by the solar battery 4. When the temperature controller When the temperature in the biogas tank is detected to be lower than the set value, the electric heater is turned on to ensure the demand for hot water and maintain a constant temperature of the biogas slurry, which overcomes the problem of low gas production rate caused by the cold winter and ensures the production of biogas.

The preferred scheme of the utility model is that the system adopts intermittent stirring, the start and stop of the stirrer is controlled by the programmable controller 21, and the stirring impeller 17 adopts a spiral shape, which can fully stir the biogas slurry and uniformly distribute the temperature, thereby realizing Continuous and efficient production of biogas.

The preferred solution of the present utility model is that the system adopts the combination of solar energy and wind energy to form a wind-solar complementary system, the solar thermal power generation device 1 provides both hot water and electric energy for the biogas production system, and the wind power generation device 2 provides electric energy for the system, Make up for the intermittent heat generation and power generation of the solar photothermal power generation device 1; the generated electric energy is stored in the solar battery 4 to provide electricity for the stirrer, the electric heater 4, the hot water circulation pump 9 and each controller. The temperature controller 20 and the programmable controller 21 are used to control the coordinated operation of the various equipment in the entire system, making full use of solar energy and wind energy, reducing the use of conventional energy in the biogas production system, maintaining a constant temperature of the biogas slurry, and realizing biogas production. Continuous and efficient production, with the characteristics of high gas production efficiency, safety and stability.

The above-mentioned detailed description of the wind-solar complementary biogas production system with reference to the embodiments is illustrative rather than restrictive, and several embodiments can be listed according to the limited scope, so without departing from the general concept of the utility model Changes and modifications should fall within the protection scope of the present utility model.

Claims (7)

1. A wind-solar hybrid biogas production system, comprising a solar thermal power generation device, a wind power generation device, a wind-solar hybrid controller, a solar battery, an inverter, a hot water storage tank, and a biogas tank; it is characterized in that: the solar thermal The power generation device is connected to the hot water storage tank, the hot water storage tank is connected to the biogas tank, the biogas tank is connected to the solar battery through the inverter, and the solar battery is connected to solar thermal power generation and wind power generation through the wind and solar hybrid controller device connection. 2. The wind-solar hybrid biogas production system according to claim 1, characterized in that: a hot water circulation pump is installed on the hot water pipe connecting the solar thermal power generation device and the hot water storage tank, and the hot water circulation pumps are respectively Connect with inverter and programmable controller. 3. The wind-solar complementary biogas production system according to claim 1, characterized in that: a hot water heating coil is installed in the biogas tank, the hot water heating coil is connected to a hot water storage tank, and the hot water heating A flow meter, a hot water circulation pump and a solenoid valve are arranged on the hot water pipe connecting the coil pipe and the hot water storage tank, and are connected with a programmable controller, and the programmable controller is connected with an inverter. 4. The wind-solar complementary biogas production system according to claim 1 or 3, characterized in that: thermocouples are respectively arranged in the hot water storage tank and the biogas tank, and the thermocouples are connected to a temperature controller, and the temperature control The inverter is connected with the inverter and the programmable controller respectively. 5. The wind-solar hybrid biogas production system according to claim 4, characterized in that: an electric heater is installed in the hot water storage tank, and the electric heater is respectively connected to an inverter and a programmable controller. 6. The wind-solar hybrid biogas production system according to claim 4, characterized in that: a stirrer is set in the biogas tank, the stirrer includes a stirring motor and a stirring impeller, and the stirring motor is respectively connected to an inverter, an adjustable Program controller connection. 7. The wind-solar hybrid biogas production system according to claim 4, characterized in that: the heat storage tank and the biogas tank are provided with a rigid polyurethane foam insulation layer.