WO2013124961A1 - 空気圧縮機の監視システム - Google Patents

空気圧縮機の監視システム Download PDF

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Publication number
WO2013124961A1
WO2013124961A1 PCT/JP2012/054026 JP2012054026W WO2013124961A1 WO 2013124961 A1 WO2013124961 A1 WO 2013124961A1 JP 2012054026 W JP2012054026 W JP 2012054026W WO 2013124961 A1 WO2013124961 A1 WO 2013124961A1
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WO
WIPO (PCT)
Prior art keywords
air compressor
pressure
air
power consumption
discharge pressure
Prior art date
Application number
PCT/JP2012/054026
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
孝寿 酒井
圭太 榎本
昭男 吉▲崎▼
隆 薮谷
Original Assignee
株式会社日立産機システム
トモソウ・ジャパン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立産機システム, トモソウ・ジャパン株式会社 filed Critical 株式会社日立産機システム
Priority to CN201280070216.4A priority Critical patent/CN104160152B/zh
Priority to PCT/JP2012/054026 priority patent/WO2013124961A1/ja
Priority to JP2014500775A priority patent/JP5878973B2/ja
Priority to CN201610681705.3A priority patent/CN106194699B/zh
Publication of WO2013124961A1 publication Critical patent/WO2013124961A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0201—Current
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0208—Power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/02—Power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/60—Prime mover parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/80—Diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/90—Remote control, e.g. wireless, via LAN, by radio, or by a wired connection from a central computer

Definitions

  • the present invention relates to an air compressor monitoring system, and in particular, evaluates the power consumption of an air compressor for industrial equipment, grasps the energy saving effect, and discovers abnormalities in the air compressor equipment such as aged deterioration.
  • the present invention relates to a monitoring system for an air compressor suitable for the purpose.
  • An air compressor is a fluid machine that compresses air, and is used as an air source for various devices such as machine tools and press machines in factory facilities.
  • a plurality of air compressors are provided in an air compressor room, and air is supplied at a pressure required for installation equipment in the factory through the air piping of the plant.
  • An air compressor is an essential machine in a production facility, and since the amount of electric power used is large, it is required to operate the facility with an air compressor with low power consumption.
  • Patent Document 1 discloses a system that calculates a power consumption amount from operation data of a plurality of electric air compressors and displays it on a printer or the like.
  • the present invention has been made to solve the above-described problems, and its purpose is to make it easy for customers to compare the power consumption of a conventional air compressor and a newly installed air compressor in an air compressor. Therefore, it is possible to provide an air compressor monitoring system that makes it easy to grasp economic advantages, warns of aging deterioration of facilities, and allows the air compressor to operate in an optimum environment.
  • the air compressor monitoring system of the present invention measures the operation of the air compressor by measuring the air compressor discharge pressure of the air compressor, the terminal pressure of the air supplied to the end equipment, and the power consumption of the air compressor.
  • An air compressor monitoring system that evaluates the situation, a pressure measuring device that measures the air compressor discharge pressure and the terminal pressure, a power measuring device that measures the power consumption of the air compressor, and a pressure Pressure data measured by the measuring device, and a monitoring computer system that receives the power data measured by the power measuring device.
  • the monitoring computer system compares the change in the power consumption of the old air compressor over time with the change in the power consumption of the new air compressor over time.
  • the accumulated power consumption amount of the first air compressor and the accumulated power consumption amount of the second air compressor when the operation is performed with the terminal pressure kept the same are displayed on the display device as graphs.
  • the monitoring computer system keeps a certain threshold value, and displays a warning screen on the display device when the air compressor discharge pressure for maintaining the end pressure exceeds the certain threshold value.
  • the manager of the facility can grasp the malfunction of the facility due to deterioration over time such as air leakage from the piping.
  • the customer can easily compare the power consumption of the conventional air compressor and the newly installed air compressor, and can easily grasp the economic advantages, and It is possible to provide a monitoring system for an air compressor that can warn of deterioration of facilities over time and operate the air compressor in an optimum environment.
  • FIG. 6 is a configuration diagram of an air compressor monitoring system according to an embodiment of the present invention.
  • FIG. 7 is a graph showing changes in compressor discharge pressure and end pressure at time.
  • FIG. 8 is a diagram showing the relationship between the discharge pressure of the air compressor and the power consumption.
  • the equipment of the air compressor varies depending on the application and the scale of improvement.
  • the air compressor has a compression chamber 500, branches one plant air pipe in the factory 600, and supplies air to the terminal equipment. The case of supplying will be described.
  • a plurality of air compressors 501, 502,... are installed, and the air supplied to the air compressor is gathered by a single air pipe (main line) 520. And sent to the plant air piping side of the factory via the filter 530.
  • the air tank 510 is a buffer for storing air, and the compressor discharge pressure Po is constantly measured by a pressure gauge (not shown).
  • Dryer, filter 530 is a filter that dries and cleans the air before sending it to the factory.
  • a plurality of air compressor 501 and 502, ... are allowed to follow the change of the compressor discharge pressure P o, the optimum number, the number control and variable control to send the air pressure of the air have been made.
  • Terminal pressures P 1 , P 2 ,..., Pn which are the pressures of air supplied to the terminal equipment, are measured in the air layer 611 or piping of each system.
  • the terminal equipment include an air blower and an air transport machine for equipment operating at a low pressure, and a laser processing machine, a machine tool, and a press machine for high pressure.
  • an air pressure booster may be installed in a system where high-pressure equipment is installed.
  • the pressure loss ⁇ time amount is equivalent to the energy loss in the compressor.
  • the compressor discharge pressure is sometimes measured for the control of the air compressor.
  • the end pressure and the compressor discharge pressure are changed every moment. There was nothing to display comparing the changes.
  • FIG. 1 is a diagram showing a configuration of an air compressor monitoring system according to an embodiment of the present invention.
  • the equipment of the air compressor of this embodiment supplies air to the plant air piping 170 from the air piping 160 in which the pipings of the plurality of air compressors 101, 102. .
  • air tanks 131, 132,... are arranged for the terminal equipment in each air pipe branched from the air tank 130 and the plant air pipe 170.
  • the plurality of air compressors 101, 102,... are controlled by the group control device 150 so that the number of air compressors and the air pressure to be output are placed in order to generate the necessary air compressor discharge pressure.
  • the discharge pressure of the air compressor in the air tank 130 and the terminal pressure in the air tanks 131, 132,... (Or piping at the terminal) are always collected by the pressure measuring device 140.
  • the measured pressure data is sent to the data collection device 300 via the transfer unit 141.
  • the plurality of air compressors 101, 102... Are supplied with power by an AC power supply 110, but power data such as current and voltage are constantly measured by the power measuring device 120 on the power supply line. Then, the measured power data is sent to the data collection device 300 via the transfer unit 121.
  • the data collection device 300 may be a dedicated hardware device, or may be equipped with software necessary for a general-purpose computer to have data collection and management functions.
  • the power data and pressure data collected by the data collection device 300 are sent to the monitoring computer system 400 via a LAN or the Internet.
  • the monitoring computer system 400 includes a display device 401, a main body control device 410, an HDD (Hard Disk Drive) 420, a keyboard 431, and a mouse 432.
  • the main body control device 410 has a CPU (Central Processing Unit) 412, a network IF 411, a main memory 415, a graphic IF 413, an input / output IF 414, and an auxiliary storage device IF 416 coupled by a bus.
  • CPU Central Processing Unit
  • the CPU 412 controls each part of the main body control device 410, loads the air conditioner monitoring program 423 to the main storage device 415, and executes it.
  • the main memory 415 is usually composed of a volatile memory such as a RAM, and stores a program executed by the CPU 412 and data to be referred to.
  • the graphic IF 413 is an interface for connecting a display device 401 such as an LCD (Liquid Crystal Display).
  • a display device 401 such as an LCD (Liquid Crystal Display).
  • the network IF 411 is an interface for connecting to the data collection device 300.
  • the network between the data collection device 300 and the main body control device 410 may be a LAN (Local Area Network) or the Internet.
  • the input / output IF 414 is an interface for connecting an input / output device.
  • a keyboard 431 and a mouse 432 of a pointing device are connected.
  • the auxiliary storage device IF 416 is an interface for connecting an auxiliary storage device such as an HDD (Hard Disk Drive) 420 or a DVD drive (Digital Versatile Disk) (not shown).
  • an auxiliary storage device such as an HDD (Hard Disk Drive) 420 or a DVD drive (Digital Versatile Disk) (not shown).
  • the HDD 420 has a large storage capacity, an air compressor monitoring program 423 for executing the present embodiment, pressure data 421 sent from the data collection device 300 via the network, and power data. 422 is stored.
  • the air compressor monitoring program 423 is a program for summing up and processing based on the collected pressure data 421 and the power data 422, outputting it in a graph, and evaluating it.
  • FIG. 2 is a graph showing changes in power consumption and air load due to changes in time.
  • FIG. 3 is a graph showing an improvement in compressor discharge pressure.
  • FIG. 4 is a graph showing an increase in discharge pressure of the air compressor due to a change in time.
  • FIG. 5 is a graph showing changes in the integrated power amount due to changes in time.
  • an existing air compressor hereinafter referred to as an old air compressor
  • a new air compressor a higher performance and energy saving type air compressor
  • the air compressor monitoring system described above collects power data and obtains the results shown in FIG.
  • the graph W1 is the power consumption of the old air compressor
  • the graph W2 is the power consumption of the new air compressor
  • the terminal pressure P is kept the same.
  • the graph L1 is obtained by taking the air load every minute on the same time axis.
  • the end pressure is P term
  • the air compressor discharge pressure of the old air compressor is P old
  • the air compressor discharge pressure of the new air compressor is P new.
  • the difference between the air compressor discharge pressure P old of the old air compressor and the air compressor discharge pressure P new of the new air compressor is the decrease in pressure loss, and this difference is the energy saving effect.
  • the effect of the replacement of the air compressor can be obtained. Has the effect of making it easier to understand visually.
  • this may be performed by displaying the integrated power amount over time on the display device 401.
  • TW1 is the cumulative power consumption of the old air compressor
  • TW2 is the cumulative power consumption of the new air compressor.
  • the time axis is sufficiently large, and taking the daily unit or monthly unit makes it easier to understand the economic effect of energy saving.
  • the difference between TW1 and TW2 is the energy saving improvement amount indicated by the dotted line.
  • air compressor equipment deteriorates with age and energy efficiency becomes worse. This may be due to various factors such as clogging of the dryer and filter 530 shown in FIG. 6 or air leakage due to the coupling of the air piping, resulting in a large loss. Moreover, although it is not aged deterioration, the case where an air leak arises by the operator's valve operation mistake etc. can be considered.
  • the discharge pressure of the air compressor is monitored by the monitoring computer system 400, and a warning screen may be displayed on the display device 401 when a certain threshold value held by the monitoring computer system 400 is exceeded.
  • the terminal pressure to be held is 0.49 [MPa]
  • the warning threshold is 0.62 [MPa].
  • the administrator can learn that there is an abnormality in the equipment, and take measures such as inspection of the equipment.
  • SYMBOLS 101,102 ... Air compressor, 110 ... AC power supply, 120 ... Electric power measuring device, 121 ... Transfer unit, 130, 131, 132 ... Air tank, 140 ... Pressure measuring device, 141 ... Transfer unit, 150 ... Group control device, 160 ... air piping, 170 ... plant air piping, 201,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
PCT/JP2012/054026 2012-02-20 2012-02-20 空気圧縮機の監視システム WO2013124961A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201280070216.4A CN104160152B (zh) 2012-02-20 2012-02-20 空气压缩机的监视系统
PCT/JP2012/054026 WO2013124961A1 (ja) 2012-02-20 2012-02-20 空気圧縮機の監視システム
JP2014500775A JP5878973B2 (ja) 2012-02-20 2012-02-20 空気圧縮機の監視システム
CN201610681705.3A CN106194699B (zh) 2012-02-20 2012-02-20 空气压缩机的监视系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/054026 WO2013124961A1 (ja) 2012-02-20 2012-02-20 空気圧縮機の監視システム

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WO2013124961A1 true WO2013124961A1 (ja) 2013-08-29

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JP (1) JP5878973B2 (zh)
CN (2) CN106194699B (zh)
WO (1) WO2013124961A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112231357A (zh) * 2020-10-20 2021-01-15 河北匠心智联软件技术有限公司 一种基于物联网的压缩空气能耗分析系统及分析方法
CN114542444A (zh) * 2022-01-18 2022-05-27 江苏日易能源科技有限公司 一种空压机智能监控方法及系统

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* Cited by examiner, † Cited by third party
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CN115263730A (zh) * 2022-07-29 2022-11-01 广州发展电力科技有限公司 一种压缩空气系统的节能管理方法及装置

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Publication number Priority date Publication date Assignee Title
JP2002195166A (ja) * 2000-08-31 2002-07-10 Nuovo Pignone Holding Spa 往復動圧縮機の吸入弁及び吐出弁の摩耗状態を遠隔診断するためのシステム
JP2003208220A (ja) * 2002-01-11 2003-07-25 Hitachi Industries Co Ltd 設備の劣化診断方法と劣化診断装置
JP2005290989A (ja) * 2004-03-31 2005-10-20 Yamatake Corp 圧縮機設備の統合制御盤
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112231357A (zh) * 2020-10-20 2021-01-15 河北匠心智联软件技术有限公司 一种基于物联网的压缩空气能耗分析系统及分析方法
CN114542444A (zh) * 2022-01-18 2022-05-27 江苏日易能源科技有限公司 一种空压机智能监控方法及系统

Also Published As

Publication number Publication date
CN106194699B (zh) 2018-10-19
JP5878973B2 (ja) 2016-03-08
CN104160152A (zh) 2014-11-19
CN104160152B (zh) 2016-09-14
JPWO2013124961A1 (ja) 2015-05-21
CN106194699A (zh) 2016-12-07

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