Thermal storage absorption refrigeration unit
OwnerQuanling Wang, Miaohong Wanginventors
Life of this patent
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Abstract
A thermal storage absorption refrigeration unit, including: a thermal storage device and an absorption refrigerating machine; an output end of the thermal storage device is connected to an input end of the absorption refrigerating machine. The excessive wind and solar power, along with electricity from the grid during off-peak hours, are stored in thermal storage device in the form of heat. These thermal storage device are configured to serve as the heat source for the absorption refrigerating machine. The thermal storage device can achieve an energy storage efficiency of 96%, offering advantages over battery storage, compressed air energy storage, and pumped hydro storage in terms of safety, efficiency, energy savings, and low upfront investment.
Claims12
A thermal storage absorption refrigeration unit, comprising a thermal storage device and an absorption refrigerating machine;
- wherein an output end of the thermal storage device is connected to an input end of the absorption refrigerating machine;
- wherein the thermal storage device comprises a phase change thermal storage device or a sensible thermal storage device;
- wherein the phase change thermal storage device is a molten salt thermal storage device or a metal phase change thermal storage device;
- and the sensible thermal storage device is a high temperature refractory or a refractory brick thermal storage device or a thermal conductive oil thermal storage device;
- wherein the thermal storage device is a molten salt thermal storage device, and the absorption refrigerating machine is a lithium bromide absorption refrigerating machine;
- wherein the molten salt thermal storage device comprises a molten salt thermal storage outer shell, a molten salt thermal storage inner shell, molten salt, a power supply, an electric heating device, and a molten salt circulating pump;
- and the molten salt is disposed in the molten salt thermal storage inner shell and the electric heating device is disposed in the molten salt;
- and the lithium bromide absorption refrigerating machine comprises an upper cylinder and a lower cylinder;
- and the upper cylinder comprises a condenser, a generator, and lithium bromide solution;
- the lithium bromide solution is provided within the upper cylinder and the generator is immersed in the lithium bromide solution, the condenser is located above the generator, the condenser is set below a water collecting tray;
- and one end of the molten salt circulating pump is connected with the molten salt thermal storage shell and connected with the molten salt, another end of the molten salt circulating pump is connected with one end of the generator, another end of the generator is connected with the molten salt thermal storage inner shell and connected with the molten salt;
- and the lower cylinder comprises an evaporator, a refrigerant pump, a spraying device, a solution spraying device, an absorber, lithium bromide solution, a solution purification pump, a solution spraying pump, a concentrate storage cylinder, concentrate, a concentrated liquid discharge pipe and a solution heat exchanger;
- and the evaporator is set below a water collecting tray, the water collecting tray is located above the absorber, the solution spraying device is set above the absorber, and the absorber is provided above the lithium bromide solution;
- and one end of the refrigerant pump is connected to the water collecting tray, another end of the refrigerant pump is connected to the spraying device, and the spraying device is located above the evaporator;
- and one end of the solution purification pump is connected to a lower end of the lower cylinder, and communicated with the lithium bromide solution, another end of the solution spraying pump is connected to a lower end of the upper cylinder through a primary side of the solution heat exchanger, and communicated with the lithium bromide solution, one end of the solution spraying pump is connected to the lower end of the lower cylinder, and communicated with the lithium bromide solution, another end of the solution spraying pump is connected to the solution spraying device, one end of the secondary side of the solution heat exchanger is connected to the lower part of the upper cylinder, and communicated with the lithium bromide solution, another end of the secondary side of the solution heat exchanger is connected to the concentrate storage cylinder, and communicated with the concentrated lithium bromide solution in the concentrate storage cylinder.
A thermal storage absorption refrigerating unit, comprising a thermal storage device and an absorption refrigerating machine;
- wherein an output end of the thermal storage device is connected to an input end of the absorption refrigerating machine;
- wherein the thermal storage device comprises a phase change thermal storage device and a sensible thermal storage device;
- wherein, the absorption refrigerating machine is a absorption refrigerating machine and the absorption refrigerating machine comprises a lithium bromide absorption refrigerating machine;
- the phase change thermal storage device is a molten salt thermal storage device, the molten salt thermal storage device comprises a molten salt thermal storage outer shell, a molten salt thermal storage inner shell, a molten salt, a power supply, an electric heating device, a molten salt heat exchanger, a molten salt heat circulating pump;
- the molten salt heat exchanger is set in the molten salt;
- and wherein the sensible thermal storage device is a thermal conductive oil thermal storage device, the thermal conductive oil thermal storage device comprises a thermal conductive oil heat storing and exchanging outer shell, a thermal conductive oil heat storing and exchanging internal shell, the thermal conductive oil, thermal conductive oil heat circulating pump, the thermal conductive oil configured in the thermal conductive oil heat storing and exchanging internal shell;
- and one end of the molten salt heat changing and circulating pump is connected to the thermal conductive oil heat storing and exchanging internal shell and connected with the heat conductive oil, another end of the molten salt heat changing and circulating pump is connected to an end of the molten salt heat exchanger, another end of the molten salt heat exchanger is connected to the thermal conductive oil heat storing and exchanging internal shell and connected with the heat conductive oil;
- one end of the thermal conductive oil heat circulating pump is connected to the thermal conductive oil heat storing and exchanging internal shell and communicated with the thermal conductive oil, another end of the thermal conductive oil heat circulating pump is connected to an end of the generator, another end of the generator is connected with the thermal conductive oil heat storing and exchanging internal shell and communicated with the thermal conductive oil.
Dependencies are inferred from the claim text.