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Compressed air energy storage and air storage tank system and adjusting method
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A technology of compressed air energy storage and regulation method, applied in container filling method, container discharge method, gas/liquid distribution and storage, etc., can solve problems such as low unit efficiency and achieve the effect of improving operation efficiency
Pending Publication Date: 2019-08-06
GUIZHOU POWER GRID CO LTD
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[0003] The air compressor is a changing working condition during operation. The compressed air is stored in the air storage tank, and the pressure of the air storage tank gradually rises from zero to the rated value, so the discharge pressure of the air compressor is a gradually rising variable. In the process of working conditions, it can be known from the operating characteristics and efficiency curve of the air compressor that the efficiency of the unit is very low at the stage of low exhaust pressure
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Embodiment 1
[0020] Embodiment 1: as Figure 1-Figure 2 As shown, a compressed air energy storage tank system includes an air compressor 1, a motor 2, n intake regulating valves 3 and n gas storage tanks 4, the air compressor 1 is connected to air at its inlet, and its outlet is connected to Exhaust main pipe 5, air compressor 1 and motor 2 are connected through the transmission shaft, driven by the motor, compressed air is discharged into the exhaust main pipe, n air storage tanks 4 are respectively connected in series with n intake control valves 3 Afterwards, it is connected to the exhaust main pipe 5 in parallel.
[0021] Preferably, the air intake regulating valve 3 is controlled electrically or pneumatically.
[0022] Preferably, the above-mentioned exhaust main pipe 5 and each gas storage tank 4 are equipped with remote pressure gauges.
Embodiment 2
[0023] Embodiment 2: as Figure 1-2 Shown, a kind of adjustment method of compressed air energy storage tank system, this method comprises the following steps:
[0024] The first step is to check that each intake control valve is in the closed position;
[0025] The second step is to start the air compressor, and the pressure of the exhaust main pipe will gradually increase;
[0026] The third step is to open the first-stage intake control valve and control the pressure of the exhaust main pipe to ( P min , Pmax ), the compressed air enters the corresponding air storage tank;
[0027] Step 4: When the pressure of the gas storage tank reaches the rated value, open the next-stage air intake regulating valve to control the pressure of the exhaust main pipe to ( P min , Pmax ), the compressed air enters the corresponding air storage tank;
[0028] Step 5: When the pressure of the gas storage tank reaches the rated value, open the next-stage air intake regulating valve, and...
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Abstract
The invention discloses a compressed airenergy storage and air storage tanksystem and an adjusting method. The system comprises an air compressor, a motor, n air feeding adjusting valves and n air storage tanks; air is injected through an inlet of the air compressor, and an outlet of the air compressor is connected to an air exhausting header; the air compressor is connected with the motor through a transmission shaft and pulled by the motor, and the air is exhausted into the air exhausting header after being compressed; and the n air storage tanks are connected with the n air feeding adjusting valves in series and then connected to the air exhausting header in parallel. According to the compressed airenergy storage and air storage tanksystem and the adjusting method, by controlling opening, closing and opening degrees of the air feeding adjusting valves, it is ensured that the exhausting pressure parameter of the air compressor is the optimal, and the air compressor is under the high-efficiency operation working condition, and the operation efficiency of the whole system is improved.
Description
technical field [0001] The invention belongs to the technical field of compressed airenergy storage equipment, and in particular relates to a compressed air energy storage gas storage tank system and an adjustment method. Background technique [0002] The compressed air energy storage system is to start the compressor to compress the air when the electricity in the grid is in excess, to compress the air for energy storage, and to consume electric energy to drive the compressor to run, and the air is compressed and stored in the air storage tank; Expander, the high-pressure air in the air storage tank enters the expander to drive the generator to generate electricity. With the advantages of large energy storage scale, long storage period, and little environmental pollution, it is considered to be one of the most promising large-scale power energy storage technologies. [0003] The air compressor is a changing working condition during operation. The compressed air is stored ...
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Application Information
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