| 摘要 |
A multiple-tank water thermal storage system and its using method belong to energy saving technology. The multiple-tank water thermal storage system includes at least two water tanks. There are an upper diffuser (2) and a lower diffuser (5) provided in each said water tank. The upper and lower diffusers (2, 5) are connected with a chiller (heater) unit (4) and a heat exchanger (11) after connecting in parallel, respectively. Control valves (8) are set on pipes of the upper and the lower diffusers (2, 5), respectively. A thermal energy-charging pump (1) is set on the water-inlet pipe of chiller (heater) unit (4). A thermal energy-releasing pump (10) is set on the water-inlet pipe of the heat exchanger (11), and temperature sensors (6) are set in the water tanks. |
| 主权项 |
1. A multiple-tank water thermal storage system, comprising:
at least two non-pressurized water tanks that are open to the atmosphere, each tank having an upper diffuser and a lower diffuser, each diffuser comprising a plurality of openings disposed within the tank and being configured to diffuse the water entering and exiting the tank through the diffuser to facilitate thermal stratification of the water in the tank, wherein said upper diffuser and said lower diffuser each include a water-inlet pipe and each water-inlet pipe comprises an adjustable control valve to control the flow of water through the diffuser, and wherein the water-inlet pipe of at least one of the upper diffuser and the lower diffuser of each tank comprises a flow meter, and wherein said tanks are fluidly connected in parallel with a water chiller and a heat exchanger, and wherein the upper and lower diffusers of each tank are fluidly connected to the water chiller and the heat exchanger; a first pump in fluid communication with and positioned between the upper diffuser and the water chiller, the first pump configured to pump water from said tanks through the upper diffusers, through the water chiller, and back to said tanks through the lower diffusers; a first block valve in fluid communication with and positioned between the water chiller and the lower diffusers; a second pump in fluid communication with and positioned between the lower diffusers and the heat exchanger, the second pump configured to pump water from said tanks through the lower diffusers, through the heat exchanger, and back to said tanks through the upper diffusers; and a second block valve in fluid communication with and positioned between the heat exchanger and the upper diffusers; wherein, when the system is in a first condition, the adjustable control valves are open and adjusted such that the first pump pumps water from both tanks simultaneously through the upper diffusers, through the water chiller, and back to said tanks through the lower diffusers, the second pump is off, and the second block valve is closed; and wherein, when the system is in a second condition, the adjustable control valves are open and adjusted such that the second pump pumps water from both tanks simultaneously through the lower diffusers, through the heat exchanger, and back to said tanks through the upper diffusers, the first pump is off, and the first block valve is closed. |
