US 12,435,912 B2
Thermal storage absorption refrigeration unit
Quanling Wang, Qinhuangdao (CN); and Miaohong Wang, Qinhuangdao (CN)
Filed by Quanling Wang, Qinhuangdao (CN); and Miaohong Wang, Qinhuangdao (CN)
Filed on Dec. 18, 2024, as Appl. No. 18/986,670.
Application 18/986,670 is a continuation of application No. PCT/CN2023/099395, filed on Jun. 9, 2023.
Claims priority of application No. 202210850993.6 (CN), filed on Jul. 19, 2022.
Prior Publication US 2025/0116435 A1, Apr. 10, 2025
Int. Cl. F25B 15/00 (2006.01); F25B 15/06 (2006.01); F25B 30/06 (2006.01)
CPC F25B 15/06 (2013.01) [F25B 30/06 (2013.01); F25B 2315/007 (2013.01); F25B 2400/01 (2013.01)] 12 Claims
OG exemplary drawing
 
1. 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.