CN-122015009-A - Energy-saving control method and system for air compression station

CN122015009ACN 122015009 ACN122015009 ACN 122015009ACN-122015009-A

Abstract

The invention relates to an energy-saving control method and system for an air compression station, and relates to the technical field of air compression stations, wherein the method comprises the steps of obtaining a required air supply amount, a power frequency number group, a frequency conversion number group, a power frequency air supply amount and a frequency conversion air supply range; the method comprises the steps of calculating power frequency demand air supply quantity and power frequency air supply quantity according to demand air supply quantity and power frequency air supply quantity, determining power frequency work numbers from a power frequency number group according to the power frequency demand quantity, forming a power frequency work group according to the power frequency work numbers, determining variable frequency work numbers from a variable frequency number group when the residual demand air supply quantity falls into a variable frequency air supply range, adjusting a variable frequency air compressor corresponding to the variable frequency work numbers according to the residual demand air supply quantity to obtain variable frequency air supply quantity, forming an air supply scheme according to the power frequency air supply quantity, the variable frequency air supply quantity, the power frequency work group and the variable frequency work numbers, and controlling an air compression station to supply air according to the air supply scheme. The invention has the effect of saving energy more in the air supply process of the air compression station.

Inventors

ZHU FENG
TONG GUIZHANG
CHEN YANJUN
Mao Songmeng
WU YUHAI
DING JINJIN
SHI MEIXIN
LI XIANGSHAN
ZHOU JUNYAN

Assignees

浙江创拓节能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260205

Claims (10)

1. An energy-saving control method for an air compression station is characterized by comprising the following steps: Step 1, acquiring a required air supply amount, a power frequency number group, a variable frequency number group, a power frequency air supply amount and a variable frequency air supply range; Step 2, calculating the power frequency demand number and the residual demand air supply amount according to the demand air supply amount and the power frequency air supply amount; step 3, determining a power frequency working number from the power frequency number group according to the number of power frequency requirements, and forming a power frequency working group according to the power frequency working number; step 4, when the residual required air supply quantity falls into the variable frequency air supply range, determining a variable frequency work number from the variable frequency number group; Step 5, adjusting the variable-frequency air compressor corresponding to the variable-frequency work number according to the residual required air supply to obtain variable-frequency air supply; Step 6, forming an air supply scheme according to the power frequency air supply quantity, the variable frequency air supply quantity, the power frequency working group and the variable frequency working number; and 7, controlling the air compression station to supply air according to an air supply scheme.
2. The air compression station energy saving control method according to claim 1, further comprising: Step 8, when the residual required air supply amount does not fall into the variable frequency air supply range, determining the maximum variable frequency air supply amount and the minimum variable frequency air supply amount according to the variable frequency air supply range; step 9, when the residual required air supply amount is smaller than the minimum variable frequency air supply amount, determining a minimum variable frequency work number from the variable frequency number group; step 10, adjusting the variable frequency air compressor corresponding to the minimum variable frequency work number according to the minimum variable frequency air supply amount to obtain the minimum variable frequency work air supply amount; Step 11, forming a minimum air supply scheme according to the power frequency air supply quantity, the minimum variable frequency air supply quantity, the power frequency working group and the minimum variable frequency working number, and controlling the air compression station to supply air according to the minimum air supply scheme; Step 12, when the residual required air supply amount is larger than the maximum variable frequency air supply amount, calculating the rated variable frequency required number and variable frequency air supply allowance according to the residual required air supply amount and the maximum variable frequency air supply amount; step 13, determining rated variable frequency work numbers and frequency modulation work numbers from the variable frequency number groups according to the rated variable frequency demand number; step 14, forming a rated variable frequency working group according to the rated variable frequency working number and the variable frequency working number, and adjusting the variable frequency air compressor corresponding to the variable frequency working number according to the variable frequency air supply allowance to obtain the variable frequency air supply quantity; And 15, forming an accurate air supply scheme according to the power frequency air supply quantity, the maximum variable frequency air supply quantity, the frequency modulation air supply quantity, the power frequency working group, the rated variable frequency working group and the frequency modulation working number, and controlling the air compression station to supply air according to the accurate air supply scheme.
3. The energy saving control method for an air compression station according to claim 2, wherein the specific method for calculating the power frequency demand number and the residual demand air supply amount according to the demand air supply amount and the power frequency air supply amount comprises the following steps: step 200, determining the number of power frequency numbers according to the power frequency number group; step 201, calculating total power frequency air supply quantity according to the number of the power frequency numbers and the power frequency air supply quantity; 202, calculating the minimum power frequency demand number according to the demand air supply amount and the power frequency air supply amount when the demand air supply amount is smaller than the total power frequency air supply amount, and defining the minimum power frequency demand number as the power frequency demand number; Step 203, calculating the power frequency total air supply amount according to the minimum power frequency required number and the power frequency air supply amount, and calculating the residual required air supply amount according to the required air supply amount and the power frequency total air supply amount; 204, defining the number of power frequency numbers as the number of power frequency requirements when the required air supply amount is larger than the total power frequency air supply amount; and 205, calculating the residual required air supply amount according to the required air supply amount and the total power frequency air supply amount.
4. The energy-saving control method of an air compression station according to claim 1, further comprising a specific method of determining a power frequency work number from a power frequency number group according to the number of power frequency demands and forming the power frequency work group according to the power frequency work number, the method comprising: step 300, searching the power frequency number and the corresponding used duration according to the power frequency number group; step 301, sorting the power frequency numbers from small to large according to the used time length to obtain a sorting number group; Step 302, sequentially selecting power frequency numbers from the sequencing number groups according to the number of power frequency requirements to serve as power frequency work numbers, and forming a power frequency work group according to the power frequency work numbers.
5. The air compression station energy saving control method according to claim 2, further comprising: Step 16, when the air compression station is controlled to supply air, acquiring total air supply quantity; step 17, when the total air supply is smaller than the required air supply and the power frequency required number is smaller than the power frequency number, obtaining a residual power frequency number according to the power frequency working number and the power frequency number group; Step 18, determining a calibration power frequency number according to the residual power frequency number, controlling the power frequency air compressors corresponding to the calibration power frequency number to replace the power frequency air compressors in the power frequency working group in sequence, and obtaining the power frequency calibration total air supply quantity; and 19, defining the power frequency working number corresponding to the replaced power frequency air compressor as a damage number when the power frequency calibration total air supply amount is equal to the required air supply amount, and outputting a power frequency abnormal signal according to the damage number.
6. The air compression station energy saving control method according to claim 5, further comprising: step 20, when the total air supply amount is smaller than the required air supply amount and the power frequency required number is equal to the power frequency number, acquiring the working frequency conversion number; step 21, obtaining a residual frequency conversion number according to the working frequency conversion number and the frequency conversion number group; Step 22, determining a calibration frequency conversion number according to the remaining frequency conversion number, controlling the frequency conversion air compressors corresponding to the calibration frequency conversion number to replace the power frequency air compressors in the power frequency working group in sequence, adjusting the power frequency air compressors to the maximum frequency conversion air supply amount, and obtaining the frequency conversion calibration total air supply amount; and step 23, defining the power frequency work number corresponding to the replaced power frequency air compressor as a damage number when the variable frequency calibration total air supply amount is equal to the required air supply amount, and outputting a power frequency abnormal signal according to the damage number.
7. The method of claim 6, further comprising a control method when the power frequency calibration total air supply amount is not equal to the required air supply amount, the method comprising: Step 1900, when the power frequency calibration total air supply amount is not equal to the required air supply amount and the power frequency total air supply amount is equal to the total air supply amount, continuing to execute step 18; step 1901, defining a power frequency work number corresponding to the replaced power frequency air compressor as a damage number when the power frequency calibration total air supply amount is unequal to the required air supply amount and the power frequency total air supply amount is unequal to the total air supply amount; Step 1902, selecting a review calibration power frequency number from the residual power frequency numbers, controlling the power frequency air compressors corresponding to the review calibration power frequency number to replace the power frequency air compressors in the power frequency working group in sequence, and obtaining the total power supply quantity of the power frequency review; Step 1903, when the power frequency recheck total air supply amount is equal to the required air supply amount, defining the power frequency work number corresponding to the replaced power frequency air compressor as a damage number, and forming a damage number group according to all the damage numbers; and 1904, outputting a power frequency abnormal signal according to the damage number group.
8. The method of claim 7, further comprising rechecking the control method when the calibrated power frequency number is not present, the method comprising: step 19020, when the recheck calibration power frequency number does not exist, obtaining a standby power frequency number; And 19021, controlling the power frequency air compressors corresponding to the standby power frequency numbers to sequentially replace the power frequency air compressors in the power frequency working group, and executing steps 1902 to 1903 until the total power frequency review air supply is equal to the required air supply.
9. The method of claim 1, further comprising an optimization method for obtaining a required air supply amount, the method comprising: step 100, obtaining temporary demand air supply quantity; step 101, defining the temporary required air supply amount as required air supply amount when the temporary required air supply amount falls within a preset reasonable required air supply range; And 102, outputting a demand air supply quantity abnormality signal when the temporary demand air supply quantity does not fall into a preset reasonable demand air supply range.
10. An energy-saving control system for an air compression station, comprising: The acquisition module is used for acquiring the required air supply quantity, the power frequency number group, the variable frequency number group, the power frequency air supply quantity and the variable frequency air supply range; A memory for storing a program of an air compression station energy saving control method according to any one of claims 1 to 9; And the processor loads and executes the programs in the memory.

Description

Energy-saving control method and system for air compression station Technical Field The invention relates to the technical field of air compression stations, in particular to an energy-saving control method and system for an air compression station. Background The air compression station is a special air supply station for continuously providing compressed air meeting the pressure and cleanliness requirements for various air utilization ends in a designated air supply area through a systematic pipeline and a control system, and is a core supply unit of compressed air in industrial production. In the related art, the air compression station mostly adopts a control method of starting and stopping a fixed number of air compressors to meet the air consumption requirement of the air consumption end, namely, the air compressors with the fixed number are started to continuously operate according to the air consumption scale of the air consumption end so as to maintain stable air supply output and discharge redundant compressed air. For the related technology, the control mode of continuous operation of the air compressors with the fixed number lacks dynamic adaptability to the actual air consumption requirement of the air consumption end, and a large amount of compressed air is discharged and wasted easily because the fixed air supply scale is not matched with the real-time air consumption. Disclosure of Invention In order to enable the air compression station to save more energy in the air supply process, the invention provides an energy-saving control method and system for the air compression station. In a first aspect, the present invention provides an energy-saving control method for an air compression station, which adopts the following technical scheme: an energy-saving control method for an air compression station comprises the following steps: Step 1, acquiring a required air supply amount, a power frequency number group, a variable frequency number group, a power frequency air supply amount and a variable frequency air supply range; Step 2, calculating the power frequency demand number and the residual demand air supply amount according to the demand air supply amount and the power frequency air supply amount; step 3, determining a power frequency working number from the power frequency number group according to the number of power frequency requirements, and forming a power frequency working group according to the power frequency working number; step 4, when the residual required air supply quantity falls into the variable frequency air supply range, determining a variable frequency work number from the variable frequency number group; Step 5, adjusting the variable-frequency air compressor corresponding to the variable-frequency work number according to the residual required air supply to obtain variable-frequency air supply; Step 6, forming an air supply scheme according to the power frequency air supply quantity, the variable frequency air supply quantity, the power frequency working group and the variable frequency working number; and 7, controlling the air compression station to supply air according to an air supply scheme. Through adopting above-mentioned technical scheme, can be according to the running quantity and the air supply of actual demand air supply dynamic adjustment power frequency and frequency conversion air compressor machine, avoid traditional fixed number to open and stop in the control mode because of the air supply scale with real-time gas consumption mismatch and the extravagant phenomenon of a large amount of compressed air blowdown that causes. Optionally, the method further comprises: Step 8, when the residual required air supply amount does not fall into the variable frequency air supply range, determining the maximum variable frequency air supply amount and the minimum variable frequency air supply amount according to the variable frequency air supply range; step 9, when the residual required air supply amount is smaller than the minimum variable frequency air supply amount, determining a minimum variable frequency work number from the variable frequency number group; step 10, adjusting the variable frequency air compressor corresponding to the minimum variable frequency work number according to the minimum variable frequency air supply amount to obtain the minimum variable frequency work air supply amount; Step 11, forming a minimum air supply scheme according to the power frequency air supply quantity, the minimum variable frequency air supply quantity, the power frequency working group and the minimum variable frequency working number, and controlling the air compression station to supply air according to the minimum air supply scheme; Step 12, when the residual required air supply amount is larger than the maximum variable frequency air supply amount, calculating the rated variable frequency required number and variable frequency air supply allowance according to the re