Technical realization elements of multi-energy complementary centralized energy supply station coupled with water source heat pump and gas boiler

Technical realization elements:

3. In view of the above problems, the main purpose of this utility model is to provide a water source heat pump and gas boiler coupling that integrates a variety of renewable energy forms, and various energy sources are mutually converted through equipment to achieve multi-energy complementation and efficient utilization. The multi-energy complementary centralized power supply station.

4. This utility model solves the above technical problems through the following technical solutions: a multi-energy complementary centralized power supply station coupled with a water source heat pump and a gas boiler, and the multi-energy complementary centralized power supply coupled with a water source heat pump and a gas boiler The station includes: power supply system, the second is the cooling system, and the third is the heating system.

5. Power supply system: The power supply system is a system that supplies power to each device in the entire system. The power supply system includes power supplied by gas internal combustion engines and power supplied by the municipal power grid.

6. Cooling system: The cooling system is a system that provides cold source services for energy users. The cooling system includes: water source heat pump units, flue gas lithium bromide units, and dynamic energy storage systems.

7. The water at room temperature is pumped into the centrifugal water chiller by the water pump, and the water at room temperature exchanges heat with the refrigerant in the water chiller.

8. The river water is pumped into the water source heat pump unit and the flue gas lithium bromide unit through the water pump.

9. Heating system: The heating system is a system that provides heat source services for energy users. The heating system includes: water source heat pump units, flue gas lithium bromide units, dynamic energy storage systems, and gas-fired hot water boilers.

10. Water source heat pump units, flue gas lithium bromide units, and dynamic energy storage systems are the common components of the cooling system and the heating system.

11. In the specific implementation example of the present utility model, the gas internal combustion engine inlet is connected to the municipal natural gas pipe network, the high temperature flue gas outlet is connected to the flue gas type lithium bromide absorption unit inlet, and the cold/hot water part of the flue gas type lithium bromide absorption unit passes through The three-way valve enters the heat exchange station after being pressurized by the secondary pump, and the other part enters the dynamic energy storage system; the cold/hot water part of the three-way valve of the water source heat pump unit enters the heat exchange station after being pressurized by the secondary pump, and the other part enters the dynamic Energy storage system; the cold water of the centrifugal chiller enters the heat exchange station after being pressurized by the secondary pump through the three-way valve.

12. In the specific implementation example of the present utility model, the dynamic energy storage cold and hot water enters the heat exchange station after being pressurized by the secondary pump through the three-way valve; the outlet of the secondary pump is connected to the inlet of the plate heat exchanger through The circulating pump is pressurized and sent to the energy supply user; plate type

The outlet of the heat exchanger is respectively connected with the water source heat pump unit, the flue gas lithium bromide unit, the centrifugal chiller and the dynamic energy storage system.

13. In the specific implementation example of the present invention, the gas boiler inlet is connected to the municipal natural gas pipeline network through the natural gas pipeline; the cold/hot water outlet of the gas boiler is connected to the inlet of the plate heat exchanger through a three-way valve and a secondary pump , The outlet of the plate heat exchanger is connected to the gas boiler.

14. The positive progress effect of this utility model is that the multi-energy complementary centralized power supply station provided by this utility model coupled with a water source heat pump and a gas boiler has the following advantages: this utility model adopts multiple energy forms to complement each other and has good energy supply stability. It is highly adaptable and has a wide range of applications. It integrates a variety of renewable energy forms. Various types of energy can be converted into each other through equipment to achieve the purpose of multi-energy complementation and efficient use.

Description of the drawings

15. Figure 1 is a schematic diagram of the overall structure of the utility model.

detailed description

16. The preferred embodiments of the present utility model are given below in conjunction with the drawings to illustrate the technical scheme of the present utility model in detail.

17. Figure 1 is a schematic diagram of the overall structure of the utility model, as shown in the above figure: the utility model provides a multi-energy complementary centralized power supply station coupled with a water source heat pump and a gas boiler, and the water source heat pump and a gas boiler are coupled Complementary centralized energy supply stations include: power supply system, the second is the cooling system, and the third is the heating system.

18. Power supply system: The power supply system is a system that supplies power to each device in the entire system. The power supply system includes power supply for gas internal combustion engines and power supply from the municipal power grid.

19. Cooling system: The cooling system is a system that provides cold source services for energy-consuming units. The cooling system includes: water source heat pump units, flue gas lithium bromide units, and dynamic energy storage systems.

20. The room temperature water is pumped into the centrifugal chiller by the water pump, and the room temperature water exchanges heat with the refrigerant in the centrifugal chiller.

21. The river water is pumped by the water pump into the water source heat pump unit and the flue gas lithium bromide unit.

22. Heating system: The heating system is a system that provides heat source services for energy users. The heating system includes: water source heat pump units, flue gas lithium bromide units, dynamic energy storage systems, and gas hot water boilers;

23. Water source heat pump units, flue gas lithium bromide units, and dynamic energy storage systems are the common components of the cooling system and the heating system.

24. Principle of utility model: The power generation of the gas internal combustion engine unit is absorbed by the various electrical equipment in the system, and the high temperature flue gas produced enters the flue gas lithium bromide absorption unit to produce cold and hot water. The gas internal combustion engine inlet is connected to the municipal natural gas pipeline network, the high temperature flue gas outlet is connected to the flue gas type lithium bromide absorption unit smoke inlet, and the cold/hot water part of the flue gas type lithium bromide absorption unit is pressurized by the secondary pump through the three-way valve and enters for replacement In the thermal station, the other part enters the dynamic energy storage system; the cold/hot water part of the water source heat pump unit enters the heat exchange station after being pressurized by the secondary pump, and the other part enters the dynamic energy storage system; the cold water of the centrifugal chiller passes through the tee The valve is pressurized by the secondary pump and then enters the heat exchange station; among them, the dynamic energy storage cold and hot water enters the heat exchange station after being pressurized by the secondary pump through the three-way valve; the outlet of the secondary pump is connected to the inlet of the plate heat exchanger The outlet of the plate heat exchanger is connected to the water source heat pump unit, the flue gas lithium bromide unit, the centrifugal chiller and the dynamic energy storage system. In addition, the gas boiler inlet is connected to the municipal natural gas pipeline network through the natural gas pipeline; the cold/hot water outlet of the gas boiler is connected to the inlet of the plate heat exchanger through a three-way valve and a secondary pump, and the outlet of the plate heat exchanger is connected to the gas boiler even

catch.

25. The operation mode of the entire centralized energy supply station is as follows: the centralized energy supply station is equipped with a natural gas distributed energy system, and the municipal natural gas pipeline network is connected to a gas internal combustion engine unit. Electricity supplement. At the same time of power generation, the flue gas hot water type lithium bromide unit recovers the waste heat of the flue gas and the jacket water to produce cold/heat, and realize the triple production of cooling, heating and power. The cold/hot water outlet of the flue gas lithium bromide unit is respectively connected to the inlet of the secondary pump and the inlet of the dynamic energy storage system through a three-way valve. The gas internal combustion engine unit will operate normally at night, and the high-temperature waste heat generated by it is continuous , The flue gas lithium bromide unit will produce a large amount of cold/hot water during continuous operation, and the end user's energy demand at night is relatively small, so it is necessary to store the cold/hot water produced by the flue gas lithium bromide unit. In summer, the dynamic energy storage system uses dynamic ice storage technology to store cold energy. Since the ice storage tank is completely separated from the ice making equipment, it can be used as a thermal storage tank in winter. Control the three-way valve at night to dynamically store the excess cold/hot water produced by the flue gas lithium bromide unit, and control the three-way valve for heating or cooling during the day. Due to the dynamic energy storage system, the dynamic energy storage system and other energy equipment provide cooling/heating at the same time during the peak energy consumption period. During the low energy consumption period, it can provide cooling/supply separately without turning on any other energy production equipment. Heat can shift the peak and fill the valley and balance the power load. When the air-conditioning time is synchronized with the non-air-conditioning time and the peak and trough of the grid, the air-conditioning power consumption during the peak time of the grid can be transferred to the trough of the grid. To achieve the purpose of saving electricity bills. The water source heat pump produces cold and hot water from the river, and its outlet is connected to the inlet of the secondary pump and the inlet of the dynamic energy storage system through a three-way valve. As the electricity sector in some regions implements time-of-use electricity prices, water sources can be increased during periods of low electricity prices. The heat pump unit contributes to maintain the energy supply effect, and at the same time stores the excess cold and heat energy in the dynamic energy storage system, and releases the cold and heat energy in the dynamic energy storage system during periods of high electricity prices, further saving electricity bills, reducing energy consumption, and reducing system operation Cost, increase operational efficiency. The outlet of the centrifugal chiller is respectively connected with the inlet of the secondary pump and the inlet of the dynamic energy storage system through a three-way valve. The cold water produced by it is mainly used as a supplementary energy during the peak period of cold energy demand in summer to deal with emergencies. The outlet of the plate heat exchanger is respectively connected with the flue gas lithium bromide unit, the water source heat pump and the centrifugal chiller via the primary pump. The inlet of the gas boiler is connected to the municipal natural gas pipe network, and the hot water outlet of the gas boiler is connected to the inlet of the secondary pump and the inlet of the dynamic energy storage system through a three-way valve. It is completely adopted under extreme conditions such as lack of power resources and shutdown of other units. The gas boiler supplies heat, and the hot water of the gas boiler is pressurized into the plate heat exchanger through the three-way valve through the secondary pump for heat exchange, and is pressurized by the circulating water pump to each end user. The outlet of the plate heat exchanger is connected to the gas through the primary pump The boiler is connected.

26. The utility model simultaneously solves the problem of high-efficiency energy storage in winter and summer systems.

27. The dynamic energy storage system in the present utility model uses dynamic ice storage technology in summer, and prepares ice slurry through the process principle of "supercooled water plus crystal promotion", which greatly reduces heat transfer and thermal resistance and reduces ice-making energy consumption by 15 percent Above; the ice storage tank is completely separated from the ice-making equipment, and the dynamic energy storage system can be used as a thermal storage tank in winter. The integrated dual purpose reduces equipment investment and increases operating benefits. The dynamic energy storage system can shift the peak and fill the valley, balance the power load, and quickly respond to load changes; improve the efficiency of the generator set, reduce environmental pollution; reduce the installed capacity of the refrigeration unit, and greatly save the user's electricity cost.

28. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the industry should understand that the present utility model is not limited by the foregoing embodiments. The foregoing embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model The new model will have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model. The scope of the claimed utility model is defined by the appended claims and their equivalents.

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