CN203742991U - Energy efficiency improving structure of worm air compressor - Google Patents
Energy efficiency improving structure of worm air compressor Download PDFInfo
- Publication number
- CN203742991U CN203742991U CN201420109897.7U CN201420109897U CN203742991U CN 203742991 U CN203742991 U CN 203742991U CN 201420109897 U CN201420109897 U CN 201420109897U CN 203742991 U CN203742991 U CN 203742991U
- Authority
- CN
- China
- Prior art keywords
- air compressor
- frequency converter
- motor
- unloading
- frequency variator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000037007 arousal Effects 0.000 claims description 3
- 230000005059 dormancy Effects 0.000 claims description 3
- 210000003746 feather Anatomy 0.000 claims description 3
- 230000007958 sleep Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses an energy efficiency improving structure of a worm air compressor. An air compressor power supply is connected with a wire inlet end of a frequency converter, an output end of the frequency converter is connected with a motor of the air compressor, the motor of the air compressor is started without load in a soft starting mode to the working frequency in a short time due to the wake-up function of the frequency converter, then the frequency converter feeds back a loading signal to a control system of the air compressor, a loading valve is opened and loaded, an unloading valve is opened when the loading pressure of the air compressor reaches the upper limit, the air compressor enters an unloading state, then an unloading signal is fed back to the frequency converter, the frequency converter controls the motor of the air compressor to the dormant state through the dormant function, and the air compressor stops operating. The energy waste is saved during the unloading of the air compressor, the energy consumption is saved, the efficiency of the air compressor is improved, in addition, the starting current of the air compressor is reduced, the equipment life is prolonged, and the maintenance and repair costs are lowered.
Description
Technical field
The utility model relates to a kind of screw air compressor efficiency lift structure.
Background technique
In many energy being used, pressurized air is one of universal energy being only second to electric power.Industry, mining industry, engineering, hospitality industry even agricultural have purposes increasingly widely, especially extremely considerable in industrial use amount.In view of pressurized air is adopted widely by all trades and professions, under the prerequisite of factory's maximization and automation, compressed-air actuated use grows with each passing day.And air compressor is being produced the energy/compressed-air actuated while, itself is also consuming a large amount of electric energy, and general 100PsiG (7Kg/cm3G) compressed air system of take is example, and the pressurized air of every production 100ICFM approximately need to consume the electric energy of 20HP.Even the factory of tens thousand of horsepowers of air compressors is numerous in the moving fault of current industrial quarters, to use thousands of horsepower, how rationally to use the dynamo-electric effect of pressurized air and pneumatics how to promote, and has become the problem that dealer pays much attention to.
The method of operation of air compressor is generally:
(1) generally adopt pressure switch ON/OFF type standard-sized sheet full cut-off to control, at pressure, arrive after unloading is set and can proceed to Unloading Condition, make running current only have the 30-60% of full load current, and lay down pressure unnecessary in tank to keep minimum tank pressure.Unloading part can be considered the composition of waste completely, and the 30-60% electric energy of waste is seen the total waste of time length calculating electric weight.
(2) adopt appearance to adjust valve to control in conjunction with pressure switch, regulate tolerance scope to be known as and can reach 40-100%.Hold tune mode and can stablize air pressure, the work that reduces air compressor controlling component is frequent, but more power consumption during the output of constant pressure air feeding actual specific motor equal-wattage.
(3) part machine can be realized air compressor shutdown after unloading, but the time of waiting for strictly must more than 10 minutes (consider that electrical network impacts) by GB requirement.And can shut down switching; when restarting loads; adopted Y-△ step-down to activate; activated current is still 3-5 times of rated current; to electrical network and other consumer, impact larger; and can exist tank pressure to burn out the risk stuck with head by the too high motor that causes, and damage starting magnetic switch, make shorten the working life of control apparatus element, compressor head simultaneously.And reality is also waste within the time period of idle running.
The compressor gas supplied amount of conventional air is constant, and user's gas consumption changes, and so also can cause the significant wastage of air compressor power, and many users use many grid-connected processing by artificial means of machine, so also can cause energy waste.
The energy of air compressor is preached: by compressor electric motor, convert electrical energy into mechanical energy, become pressure energy again by compressor screw (or piston) transmitting and converting to pressurized air.So air compressor operational efficiency is determining this air compressor electric energy efficiency.
Air compressor operational efficiency
In manufacturing enterprise, compressed-air actuated consumption is unsettled certainly, therefore η < 1, operation just must be wasted a large amount of electric energy.
Summary of the invention
In order to improve air compressor efficiency, reduce air compressor unloading waste of energy, the utility model provides a kind of electric energy of wasting when air compressor unloads of saving, and improves the screw air compressor efficiency lift structure of air compressor efficiency.
It is as described below that the utility model solves the technological scheme that its technical problem adopts: a kind of screw air compressor efficiency lift structure, it is characterized in that, air compressor power supply connects frequency variator end of incoming cables, inverter output terminal is connected with air compressor motor, frequency variator by arousal function make air compressor motor through soft starting mode at short notice No Load Start to frequency of okperation, then frequency variator feeds back to air compressor control system by load signal, charge valve is opened and loaded, when arriving capping, opens air compressor on-load pressure feather valve, air compressor enters unloaded state, now unloader signal feeds back to frequency variator, then frequency variator is controlled air compressor motor by sleep mode and is entered into state of dormancy, air compressor is out of service.
According to the utility model of said structure, its beneficial effect is, the utility model has been saved the waste of energy of air compressor when unloading, energy efficient, improve air compressing engine efficiency, and can reduce air compressor inrush current, reduce the impact to electrical network and air compressor mechanical part, improve and reduce maintenance, repair cost life of equipment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.
Fig. 1 is the utility model structural principle block diagram.
Embodiment
As shown in Figure 1, a kind of screw air compressor efficiency lift structure, air compressor power supply connects frequency variator end of incoming cables, inverter output terminal is connected with air compressor motor, and frequency variator adds by what take from air compressor that relief switch signal is controlled the operation of air compressor, state quits work.When air compressor loads, first load signal feeds back to frequency variator, frequency variator makes air compressor motor arrive power frequency 50HZ through soft starting mode No Load Start within 1 second by arousal function, then frequency variator feeds back to air compressor control system by load signal, and charge valve is opened and loaded.When arriving capping, opens air compressor on-load pressure feather valve, air compressor enters unloaded state, at this moment unloader signal feeds back to frequency variator, then frequency variator is controlled air compressor motor by sleep mode and is entered into state of dormancy, air compressor is out of service, so just overcome the energy consumption waste of air compressor when unloading, saving power, improves air compressing engine efficiency.
Frequency Converter Control air compressor motor is unloaded soft starting mode while starting, and can not produce inrush current.
Air compressor operational efficiency after employing the utility model structure
That is: therefore η=1.Save electric energy, raise the efficiency.
Embodiment has carried out exemplary description to the utility model by reference to the accompanying drawings above; obvious realization of the present utility model is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present utility model and technological scheme to carry out; or without improving, the design of the utility model patent and technological scheme are directly applied to other occasion, all in protection domain of the present utility model.
Claims (1)
1. a screw air compressor efficiency lift structure, it is characterized in that, air compressor power supply connects frequency variator end of incoming cables, inverter output terminal is connected with air compressor motor, frequency variator by arousal function make air compressor motor through soft starting mode at short notice No Load Start to frequency of okperation, then frequency variator feeds back to air compressor control system by load signal, charge valve is opened and loaded, when arriving capping, opens air compressor on-load pressure feather valve, air compressor enters unloaded state, now unloader signal feeds back to frequency variator, then frequency variator is controlled air compressor motor by sleep mode and is entered into state of dormancy, air compressor is out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109897.7U CN203742991U (en) | 2014-03-12 | 2014-03-12 | Energy efficiency improving structure of worm air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109897.7U CN203742991U (en) | 2014-03-12 | 2014-03-12 | Energy efficiency improving structure of worm air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742991U true CN203742991U (en) | 2014-07-30 |
Family
ID=51342799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109897.7U Expired - Lifetime CN203742991U (en) | 2014-03-12 | 2014-03-12 | Energy efficiency improving structure of worm air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742991U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460846A (en) * | 2014-12-19 | 2017-02-22 | （株）建荣机械 | Compressor operation control system and method for saving energy |
| CN107013443A (en) * | 2016-01-28 | 2017-08-04 | Abb技术有限公司 | Load/unload control method and equipment for compressor assembly |
| CN107345514A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of compressor boot system and method |
-
2014
- 2014-03-12 CN CN201420109897.7U patent/CN203742991U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460846A (en) * | 2014-12-19 | 2017-02-22 | （株）建荣机械 | Compressor operation control system and method for saving energy |
| CN106460846B (en) * | 2014-12-19 | 2019-07-30 | （株）建荣机械 | System and method for controlling the driving of air compressor to save energy |
| CN107013443A (en) * | 2016-01-28 | 2017-08-04 | Abb技术有限公司 | Load/unload control method and equipment for compressor assembly |
| CN107013443B (en) * | 2016-01-28 | 2019-03-22 | Abb技术有限公司 | Load/unload control method and equipment for compressor assembly |
| US10451052B2 (en) | 2016-01-28 | 2019-10-22 | Abb Schweiz Ag | Load/unload control method for compressor system |
| CN107345514A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of compressor boot system and method |
| CN107345514B (en) * | 2016-05-06 | 2020-02-07 | 中国石油化工股份有限公司 | Compressor starting system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201666246U (en) | Workstation energy-saving system of air compressor | |
| CN203742991U (en) | Energy efficiency improving structure of worm air compressor | |
| WO2017054596A1 (en) | All-in-one machine for air compressor driving and intelligent energy conservation and method thereof | |
| CN104976170B (en) | Hydraulic pump station with energy-saving buffering protection device | |
| CN115143089A (en) | Intelligent variable-frequency drive control system and method for air compressor | |
| CN201461353U (en) | Air compressor energy-saving system | |
| CN205776508U (en) | A kind of automatic Constant-pressure Supplying Water Control System | |
| CN201178462Y (en) | Low power consumption standby power source circuit | |
| CN202125419U (en) | Frequency conversion and electricity-saving device of air compressor | |
| CN104153979B (en) | The progress control method of a kind of power air compressor and compressor thereof | |
| CN201696276U (en) | Frequency conversion control system for constant-temperature air supply of air compressor | |
| CN202326249U (en) | System for controlling screw air compressor | |
| CN203737201U (en) | Energy-saving air supply system for autoclave | |
| CN206801877U (en) | A kind of air force intelligent flow control system control circuit | |
| CN207315658U (en) | A kind of energy-saving air compressor of transformation | |
| CN203962358U (en) | A kind of power air compressor | |
| CN202250683U (en) | Energy saving device of air pump | |
| CN204828093U (en) | Hydraulic power unit with energy -conserving buffer protection device | |
| CN204646610U (en) | A kind of air compressor energy-saving and frequency-variable control cabinet | |
| CN201065314Y (en) | Hydraulic jack | |
| CN201102306Y (en) | Intelligent electricity saver of injection machine | |
| CN107956754A (en) | Hydraulic power unit with device | |
| CN209088853U (en) | The magnetic control energy saver of pumping unit | |
| CN201818481U (en) | Energy-saving control system of air compressor | |
| CN102032161A (en) | Energy-saving control system of air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |