CN108645053A - A kind of energy supplying system of providing multiple forms of energy to complement each other using regenerative resource - Google Patents

Abstract

The present invention relates to a kind of energy supplying systems of providing multiple forms of energy to complement each other using regenerative resource, including solar power system, constant temperature biogas pond, biogas generator, battery energy storage system, solar thermal collector, geothermal tube, attemperater and intelligent controller, solar power system is electrically connected with battery energy storage system and charges for it, intelligent controller and solar power system and marsh gas power generation mechatronics, and for according to downstream electrical equipment demand reasonable distribution electric energy, the hot water that solar thermal collector and geothermal tube are collected into, into spare in attemperater, a part directly output supplying hot water uses, a part is the heat supply of constant temperature biogas pond.Energy-efficient, clean environment firendly of the invention, makes full use of the regenerative resources such as solar energy, underground heat, biomass marsh gas, utilizes process almost zero-emission；Safety and stability economizes on resources, can have strong operability, and heat supply is carried out to constant temperature biogas pond using solar energy and underground heat, ensures that biomass marsh gas stablizes aerogenesis power generation；Can flexible modulation, it is applied widely.

Description

A Multi-Energy Complementary Energy Supply System Utilizing Renewable Energy

technical field

The invention relates to the technical field of multi-energy complementary energy supply, in particular to a multi-energy complementary energy supply system utilizing renewable energy.

Background technique

Building a multi-energy complementary integrated optimized distributed energy system is the general trend of social development in my country. This system can effectively promote clean energy production and nearby consumption, and is an important way to improve the energy utilization rate of the entire region. Therefore, it is an important means to realize multi-energy coordinated supply and comprehensive cascade utilization of energy by developing clean energy multi-energy complementary systems according to local conditions and improving the utilization rate of renewable energy for end users’ various energy demands such as cooling, heating, and electricity. It is also an important embodiment of the concept of Energy Internet.

At present, the utilization of solar energy, geothermal energy, and biomass energy is a representative way of utilizing clean energy. It has the advantages of wide sources, clean and environmental protection, and its application is becoming more and more extensive. However, renewable energy also has shortcomings such as poor stability, and cannot completely exist independently from traditional energy sources, and there is room for improvement.

Contents of the invention

The purpose of the present invention is to provide a multi-energy complementary energy supply system utilizing renewable energy that can provide uninterrupted energy supply, so as to alleviate the dependence on traditional energy sources.

The present invention is realized as follows: a multi-energy complementary energy supply system utilizing renewable energy, including a solar power generation system, a constant temperature biogas digester, a biogas generator, a battery energy storage system, a solar collector, geothermal pipes, an insulated water tank and An intelligent controller, the solar power generation system is electrically connected with the battery energy storage system and charges it, the intelligent controller is electrically connected with the solar power generation system and the biogas generator, and is used to reasonably distribute electric energy according to the demand of downstream electrical equipment, and the The hot water collected by the solar collectors and geothermal pipes enters the thermal insulation water tank for standby use, part of which is directly output for hot water use, and part of which is used for heating the constant temperature biogas digester.

Wherein, an inverter is provided between the solar power generation system and the intelligent controller, and the electric energy of the solar power generation system is converted into alternating current by the inverter and then enters the intelligent controller.

Wherein, the system also includes a heating and cooling system, and the heating and cooling system further includes a ground source heat pump air conditioner host system, a hot water heat pump air conditioner host system and an electric compression air conditioner host system, wherein the ground source heat pump air conditioner host system is the main equipment, The hot water heat pump air conditioner host system and the electric compression air conditioner host system are standby equipment.

Wherein, the first electromagnetic valve and the first pump are connected between the inlet of the solar heat collector and the cold water inlet pipe, the outlet of the solar heat collector is connected with the inlet of the heat preservation water tank; the inlet of the geothermal pipe is connected with the inlet pipe of cold water, and the outlet of the geothermal pipe It is connected with the second pump, and then divided into two branches, one enters the heat preservation water tank, and the other enters the geothermal heat pump air-conditioning host system for heating and cooling.

Wherein, the hot water in the thermal insulation water tank also enters the hot water heat pump air conditioner host system for heating and cooling.

Wherein, the heating and cooling system also includes an electric compression hot water system for providing hot water.

The working principle of the present invention is: the multi-energy complementary energy supply system using renewable energy uses solar energy, geothermal energy and biomass energy to supply cold, heat and electricity, and various energy sources complement each other, and the solar power generation system directly generates The electricity is supplied to the electrical equipment through the intelligent controller, and the excess electricity is stored in the battery energy storage system. If the power generated by the solar power generation system cannot meet the needs of the downstream power consumption equipment, the battery energy storage system will supply the power to the power consumption equipment through the intelligent controller. When needed, the biogas generator is enabled to supply power to the intelligent controller to supply power to downstream electrical equipment. Solar collectors can collect heat from the sun, and geothermal pipes can collect geothermal energy and collect it in an insulated water tank. One part provides hot water, and the other part is used to heat the constant temperature biogas digester. The temperature of the constant temperature biogas digester is higher in summer, and the gas production is relatively low Stable, which can ensure stable power output and storage. The temperature in winter is low, and the gas production will be greatly reduced. The hot water in the insulated water tank is supplied to the constant temperature biogas digester to ensure the stable gas production of the constant temperature biogas digester at a constant temperature.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

(1) High efficiency, energy saving, clean and environmental protection, making full use of solar energy, geothermal energy, biomass methane and other renewable energy sources for energy supply, almost zero emissions during the energy utilization process, without any emissions, and playing a good role in protecting the environment;

(2) Safe and stable, resource-saving, and highly operable. Solar energy and geothermal heat are used to heat the constant-temperature biogas digesters to ensure stable biogas production and power generation, and to meet the most basic energy supply requirements of the system. This is the basis for the safety and stability of the system . On this basis, through the combination of photovoltaic and battery energy storage systems, make full use of renewable solar energy, and use geothermal heating and cooling at the same time, reduce the use of fossil energy, and effectively promote resource conservation;

(3) It can be adjusted flexibly and has a wide range of applications. The system realizes the optimal combination of several clean energy sources and has a wide range of applications, especially for construction in areas without cable facilities (off-grid type). The combination of electricity and the battery energy storage system of this system can further improve the flexibility and reliability of the system.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of a multi-energy complementary energy supply system using renewable energy according to the present invention.

1. The first solenoid valve; 2. The first pump; 3. Solar collector; 4. Insulated water tank; 5. The second solenoid valve; 6. The third solenoid valve; 7. The fourth solenoid valve; 8. The fifth Solenoid valve; 9. Hot water heat pump air conditioner host system; 10. Geothermal heat pump air conditioner host system; 11. Electric compression air conditioner host system; 12. Cooling and heat energy distribution module; 13. Sixth solenoid valve; 14. Electric compression hot water system 15. The seventh solenoid valve; 16. Solar power generation system; 17. The eighth solenoid valve; 18. Inverter; 19. The ninth solenoid valve; 20. The tenth solenoid valve; 21. Battery energy storage system; 22. Intelligent controller; 23. Biogas generator; 24. Second pump; 25. Geothermal pipe; 26. Eleventh solenoid valve; 27. Constant temperature biogas digester.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As an embodiment of the multi-energy complementary energy supply system using renewable energy in the present invention, the system includes a power storage and supply system, a hot water supply system, a heating system and a refrigeration system, as shown in Figure 1, and the specific equipment includes solar power generation System 16, constant temperature biogas digester 27, biogas generator 23, battery energy storage system 21, solar heat collector 3, geothermal pipe 25, heat preservation water tank 4 and intelligent controller 22, the solar power generation system 16 and battery energy storage system 21 Electrically connected and charged for it, the intelligent controller 22 is electrically connected with the solar power generation system 16 and the biogas generator 23, and is used for rationally distributing electric energy according to the demand of downstream electrical equipment, and the solar heat collector 3 and the geothermal pipe 25 collect The hot water that arrives enters the thermal insulation water tank 4 for standby use, a part of which is directly output for hot water use, and a part for the constant temperature biogas digester 27 heat supply.

The multi-energy complementary energy supply system using renewable energy uses solar energy, geothermal energy and biomass energy to supply cold, heat and electricity. Various energy sources are complementary to each other. The solar power generation system 16 directly generates electricity, and through the intelligent controller 22 to supply electrical equipment, and excess power enters the battery energy storage system 21 for storage. If the power generated by the solar power generation system 16 cannot meet the needs of the downstream electrical equipment, the battery energy storage system 21 will supply the electrical energy to the electrical equipment through the intelligent controller 22. When meeting the demand of downstream electrical equipment, enable the biogas generator 23 to supply power to the intelligent controller 22 to supply power to the downstream electrical equipment. At this time, it is necessary to set the biogas generated by the constant temperature biogas digester 27 to enter the biogas generator 23. The power generated by the biogas generator 23 can ensure that all downstream The maximum power demand of the electrical equipment. The solar heat collector 3 can collect the thermal energy of the sun, and the geothermal pipe 25 can collect the geothermal energy and collect it in the thermal insulation water tank 4. One part is used to provide hot water, and the other part is used to supply heat for the constant temperature biogas digester 27. The temperature is higher and the gas production is relatively stable, which can ensure stable power output and storage. In winter, the temperature is lower and the gas production will be greatly reduced. The hot water in the thermal insulation water tank 4 is supplied to the constant temperature biogas digester 27 to ensure the constant temperature biogas digester 27 Stable gas production at constant temperature.

In this embodiment, an inverter 18 is also provided between the solar power generation system 16 and the intelligent controller 22, and the electric energy of the solar power generation system 16 is converted into alternating current by the inverter 18 and then mixed with the biogas in the constant temperature biogas digester 27 via the inverter 18. The electric power after the biogas generator 23 is mixed, and then enters the intelligent controller 22 .

In this embodiment, the system further includes a heating and cooling system, and the heating and cooling system further includes a ground source heat pump air conditioner host system 10, a hot water heat pump air conditioner host system 9 and an electric compression air conditioner host system 11, wherein the ground source heat pump The air conditioner host system 10 is the main equipment, and the hot water heat pump air conditioner host system 9 and the electric compression air conditioner host system 11 are backup equipment. In winter, the ground source heat pump air conditioner host system 10 is directly used for heating, and the hot water heat pump air conditioner host system 9 and the electric compression air conditioner host system 11 are used as a peak shaving supplement or backup for heating. In summer, the ground-source heat pump air-conditioning system 10 is also used for refrigeration, and the hot water heat pump air-conditioning host system 9 and the electric compression air-conditioning host system 11 are used as backup. Electric compression air-conditioning host system 11 electric output power type selection can guarantee the maximum demand for hot water. Geothermal heat pump air-conditioning host system 10 type selection can ensure the average daily heat supply for heating in winter and the average daily cooling capacity for cooling in summer. When the geothermal heat pump air conditioner host system 10 and the hot water heat pump air conditioner host system 9 fail, the electric compression air conditioner host system 11 is activated for heating or cooling.

In this embodiment, the heating and cooling system further includes a cooling and heat energy distribution module 12 for comprehensive management of heating and cooling.

When the hot water produced by the heat of the solar thermal collector 3 can meet the hot water demand of downstream users, the solar thermal collector 3 is directly enabled to supply hot water. When the heat of the solar heat collector 3 cannot meet the hot water demand of downstream users, the geothermal pipe 25 system is used to supply hot water, that is, cold water enters the geothermal pipe 25 and enters the thermal water tank 4 after heating up, and then enters the downstream hot water users. The heating and cooling system also includes an electric compression hot water system 14, which is used to provide hot water. When the heat of the solar heat collection system 3 and the geothermal pipe 25 heating system cannot meet the hot water demand of downstream users or the equipment fails, the electric compression heating system is activated. The water system 14 supplies hot water.

In this embodiment, the first electromagnetic valve 1 and the first pump 2 are connected between the inlet of the solar collector 3 and the cold water inlet pipe, the outlet of the solar collector 3 is connected to the inlet of the heat preservation water tank 4; the inlet of the geothermal pipe 25 It is connected with the cold water inlet pipe, and the outlet of the geothermal pipe 25 is connected with the second pump 24, and then divided into two branches, one enters the thermal insulation water tank 4, and the other enters the geothermal heat pump air-conditioning host system 10 for heating and cooling.

In this embodiment, the hot water in the thermal insulation water tank 4 also enters the hot water heat pump air conditioner host system 9 for heating and cooling.

In this embodiment, the second solenoid valve 5, the third solenoid valve 6, the fourth solenoid valve 7, the fifth solenoid valve 8, the sixth solenoid valve 13, the seventh solenoid valve 15, the eighth solenoid valve 17, the ninth solenoid valve The electromagnetic valve 19, the tenth electromagnetic valve 20 and the eleventh electromagnetic valve 26 are mainly used to realize the intelligent on-off of each pipeline and improve the degree of automation of the system.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

(1) High efficiency, energy saving, clean and environmental protection, making full use of solar energy, geothermal energy, biomass methane and other renewable energy sources for energy supply, almost zero emissions during the energy utilization process, without any emissions, and playing a good role in protecting the environment;

(2) Safe and stable, resource-saving, and highly operable. Solar energy and geothermal heat are used to heat the constant-temperature biogas digesters to ensure stable biogas production and power generation, and to meet the most basic energy supply requirements of the system. This is the basis for the safety and stability of the system . On this basis, through the combination of photovoltaic and battery energy storage systems, make full use of renewable solar energy, and use geothermal heating and cooling at the same time, reduce the use of fossil energy, and effectively promote resource conservation;

(3) It can be adjusted flexibly and has a wide range of applications. The system realizes the optimal combination of several clean energy sources and has a wide range of applications, especially for construction in areas without cable facilities (off-grid type). The combination of electricity and the battery energy storage system of this system can further improve the flexibility and reliability of the system.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (6)

1. a kind of energy supplying system of providing multiple forms of energy to complement each other using regenerative resource, which is characterized in that including solar power system, constant temperature Methane-generating pit, biogas generator, battery energy storage system, solar thermal collector, geothermal tube, attemperater and intelligent controller, it is described Solar power system is electrically connected with battery energy storage system and charges for it, the intelligent controller and solar power system and Marsh gas power generation mechatronics, and for according to downstream electrical equipment demand reasonable distribution electric energy, the solar thermal collector and ground The hot water that heat pipe is collected into, it is a part of for constant temperature biogas into spare in attemperater a, part directly output supplying hot water use Pond heat supply.

2. system according to claim 1, which is characterized in that between the solar power system and intelligent controller also Equipped with inverter, the electric energy of solar power system enters back into intelligent controller after inverter is converted into alternating current.

3. system according to claim 1, which is characterized in that the system also includes heating refrigeration system, the heating Refrigeration system again include geothermal heat pump air-conditioner host system, hot water heat pump air-conditioner host system and voltage contracting air-conditioner host system, Wherein, geothermal heat pump air-conditioner host system is main equipment, and hot water heat pump air-conditioner host system and voltage contracting air-conditioner host system are Stand-by equipment.

4. system according to claim 3, which is characterized in that between the solar thermal collector import and cold water inlet The first solenoid valve and the first pump are connected, solar thermal collector outlet is connect with attemperater import；The import of geothermal tube and cold water Water inlet pipe connects, and the outlet of geothermal tube is connected with the second pump, is divided into two later, and one enters attemperater, and one enters ground Heat driven heat pump air-conditioner host system carries out heating and refrigeration.

5. system according to claim 4, which is characterized in that the hot water of the attemperater is also into hot water heat pump air-conditioning Host system carries out heating and refrigeration.

6. system according to claim 3, which is characterized in that the heating refrigeration system further includes electric compressed hot water system System, for providing hot water.