A compressed air energy storage device based on constant temperature control

Abstract

The invention discloses a compressed air energy-storage device based on constant-temperature control. The compressed air energy-storage device comprises a liquid piston, a low-pressure gas pipeline, a high-pressure gas pipeline, a liquid cooling device, a water pump water turbine unit, a temperature sensor, a first water circulating cooling device, a second water circulating cooling device and a controller. The liquid piston, the low-pressure gas pipeline, the high-pressure gas pipeline and the water pump water turbine unit are arranged, so that air is compressed and expanded in the liquid piston, potential energy of compressed air is utilized completely, loss is reduced, and a utilization rate for stored energy is high; the temperature sensor, liquid storage plates, a plurality of layers of fillers and the liquid cooling device are arranged, so that the temperature in the liquid piston can be regulated in an air compression process and an air expansion process, and therefore, damages, caused by fierce temperature variation, on equipment are prevented, and safety is high; and the rotatable liquid storage plates are arranged, so that liquid storage is carried out when the temperature is high, and gas-liquid heat exchange is realized; and the rotatable liquid storage plates are perpendicular when the temperature is uniform, so that liquid is not stored, degree of automation is high, and gas-liquid heat exchange effect is good.

Description

Technical field:

[0001] The invention belongs to the technical field of electric energy storage, and in particular relates to a compressed air energy storage device based on constant temperature control. Background technique:

[0002] The unbalanced power load in the world is becoming increasingly prominent, and the peak-to-valley difference of the power grid is gradually widening. At the same time, people have higher and higher requirements for the power supply quality of the power grid. It is matched to alleviate the situation that the peak-to-valley difference of the system load is too large. Electric energy storage system is also a key technology to solve the problems of small capacity and large load fluctuation of distributed energy system.

[0003] At present, there are many ways of electric energy storage: compressed air energy storage, pumped water storage, electromagnetic energy storage, flywheel energy storage, supercapacitor energy storage, supercritical compress...

Examples

Embodiment Construction

[0032] like figure 1 As shown, the compressed air energy storage device based on constant temperature control of the present invention includes:

[0033] Liquid piston 1, such as figure 2 As shown, the upper part of the liquid piston 1 is provided with a first port 101, the second port 102, and the third port 103, and the lower part of the liquid piston 1 is provided with a fourth port 104 and a fifth port 105. A plurality of rotatable liquid storage plates 106 are arranged above the inside of the piston 1 , and multi-layer packing 107 is arranged under the inside of the liquid piston 1 . In this example, if image 3 As shown, the rotatable liquid storage plate 106 includes a rotating plate 1061, a rotating shaft 1062, and a rotating motor 1063. The first end of the rotating shaft 1062 is connected to the rotating plate 1061, and the second end of the rotating shaft 1062 The end passes through the side wall of the liquid piston 1 and is connected to the rotary motor 1063 ,...

Technical field:

[0001] The invention belongs to the technical field of electric energy storage, and in particular relates to a compressed air energy storage device based on constant temperature control. Background technique:

[0002] The unbalanced power load in the world is becoming increasingly prominent, and the peak-to-valley difference of the power grid is gradually widening. At the same time, people have higher and higher requirements for the power supply quality of the power grid. It is matched to alleviate the situation that the peak-to-valley difference of the system load is too large. Electric energy storage system is also a key technology to solve the problems of small capacity and large load fluctuation of distributed energy system.

[0003] At present, there are many ways of electric energy storage: compressed air energy storage, pumped water storage, electromagnetic energy storage, flywheel energy storage, supercapacitor energy storage, supercritical compress...

Examples

Embodiment Construction

[0032] like figure 1 As shown, the compressed air energy storage device based on constant temperature control of the present invention includes:

[0033] Liquid piston 1, such as figure 2 As shown, the upper part of the liquid piston 1 is provided with a first port 101, the second port 102, and the third port 103, and the lower part of the liquid piston 1 is provided with a fourth port 104 and a fifth port 105. A plurality of rotatable liquid storage plates 106 are arranged above the inside of the piston 1 , and multi-layer packing 107 is arranged under the inside of the liquid piston 1 . In this example, if image 3 As shown, the rotatable liquid storage plate 106 includes a rotating plate 1061, a rotating shaft 1062, and a rotating motor 1063. The first end of the rotating shaft 1062 is connected to the rotating plate 1061, and the second end of the rotating shaft 1062 The end passes through the side wall of the liquid piston 1 and is connected to the rotary motor 1063 ,...

Images