Increasing one class can effect pneumatics machine uses dual class to compress, why can be you still oppugned?

At present ” two class are compressed ” a large number of application receive in the market, serve as ” energy-saving ” pronoun achieved national level approbate and popularize energetically, and in fact true also raised whole of industry of whole pneumatics machine can effect technology level. Especially its implicit significance is immense: Brand first time had numerous and homebred nation to surmount ” foreign brand ” product can the technology of effect level progresses, plus opposite abroad brand more the market smell of acumen and action force, executive force, on the market ” two class are compressed ” card of home made product already had relative advantage, right ” abroad ” the brand is brought think be proud ” energy-saving ” high-end type forms severe impact. The closest period of time, some abroad brand receives cloth of a running fire to be aimed at ” two class reduce screw pneumatics chance ” doubt article, sword sharp edge points to one numerous homebred brand continuously, between the lines ” promiscuous seeing and hearing ” , right extremely homebred the what one is particularly good at that has rag, solemning is battle of a public opinion, intent abundantly clear.

. . . . . . Above a variety of, proper motion experience. . . . . . Interested friend can search this date to will be pushed recently by oneself send a batch ” two class are compressed ” definitive document in order to ensure a right understanding of the facts!

The key bad news that foreword _ is used at generation to compress airy compressor is industrial business can equipment, have energy-saving latent capacity. In the use cost of pneumatics machine, equipment purchases cost to be occupied only 5% , safeguard cost to occupy 18% , charge of electricity was occupied 77% breathtaking, executive compressor is energy-saving the use cost that will reduce compressor significantly. 15% what compressor power consumption takes power consumption of main industry equipment, countrywide compressor is annual power consumption is 250 billion kilowatt hour about. According to countrywide compressor average length report 15% , average electrovalency is calculated 0.65 yuan, will create energy-saving benefit every year 24.4 billion yuan, market prospect is capacious.

The production that pneumatics engine system is production industry assists equipment or power plant, its the sources of energy uses up the 10 ～ that achieve industry total specific power consumption 60.66% . Air compressor is old old, use fixed number of year is longer cause lead plane to wear away, screw clearance increases in leak of the air in reducing airy process likewise, so that capacity is reduced, bring about utilization rate of equipment and installations low, only course compresses screw air to reduce unit, the input is taller than power and utilization rate is low, do not belong to a country energy-saving attestation equipment. Of equipment of the progress of the development as the society, science and technology, machining improved reach those who machine precision to rise, society and enterprise are gone after to energy-saving product, the double step that represents latest technology compresses airframe emerge as the times require. Compress airframe with power, dual class compresses airframe efficiency to reduce airframe efficiency than only course tall 15% (if only course is compressed,be old airframe, criterion efficiency is lower, reduce efficiency will ambitious at 15% ) . Dual class is compressed even if dual class compresses one level working principle and advantage _ rotor compresses rotor combination to be inside a housing with 2 class, adopt helical gear straight drive respectively. Natural air enters the first class to compress through the inhaler, in compress antrum mixes with a few lube, reduce gas mixture the pressure between class at the same time. The gas after compressing enters cooling passageway, with a large number of oily mist contacts, dropped temperature greatly thereby. The compression after dropping in temperature gas enters rotor of the 2nd class, undertake 2 times compression, be compressed final exhaust pressure, pass compressor of exhaust flange eduction finally.

According to the project thermodynamic theory, pneumatics machine is compressed in the isotherm in reducing a process most province result. (aeriform density is lower when temperature is high, the work that compresses need to use is much) . Not only such, isotherm is compressed not only can reduce the meritorious service that consume, return the temperature that can drop the gas after compressing, make of pneumatics machine material use more broad with economy, make of pneumatics machine move more reliable. But isotherm is compressed, be about to make aeriform quantity of heat is exchanged with the outside at any time, aeriform temperature and outside are equal, in working actually, be impossible to come true. And compress through classificationing adding the refrigeration intermediate is the effective method that drops exhaust temperature. Only course compresses airframe to have cooling not perfect sex, the airframe that dual class compresses has the refrigeration between perfect class to design the perfect sex of the refrigeration in reducing a process with dual class. In addition, two pairs of rotor do work at the same time, encourage rate is rapid, give tolerance big, it is the advantage with only irreplaceable course this bit. And compress as a result of dual class, the compression of every class compares sheet pole to compress should a lot of smaller, the pressure that rotor and bearing get is little, plus rotor diameter big, rotate speed is low, move so more reliable. Dual class compresses airframe every grade compression ratio is reduced, so the compression between rotor air leak is reduced greatly, improved the cubage efficiency of airframe. Dual class compresses airframe to all introduce axial to enter gas design, made full use of the effective length of screw, make compress efficiency maximize, also reduced radial unbalance, improved the life of the component, also reduced moving noise significantly. Dual class compressed airframe to use newest efficient rotor molded lines to design, reduced the rotor bearing load of each class. One class and the rotor of 2 class screw all move in first-rate tine to carry speed on the head. A tolerance that the electric machinery charge for the making of sth. of coequal power produces for, dual class compares only course tall 13%-15% generally, a when be equivalent to 90kW dual class reduces pneumatics chance the tolerance that only course of a 110kW can yield to reduce pneumatics chance below coequal specific power consumption. Pneumatics machine site is energy-saving transform plan and pneumatics of _2.1 of energy-saving effect analysis machine is energy-saving transform program we pressed down spot of limited company of titanium chemical industry to undertake transforming to Zhenjiang, undertook to transforming around data checks respectively, in order to present gas opening can after effect analyzer undertakes detecting, basis pressure temperature undertakes conversion answers inspiratory state wind force, measure corresponding specific power consumption at the same time. Machine of pneumatics of 4 132kW of this company has transform latent capacity, pneumatics type name all is answer contain SA132W type, 24 small fortune go. Have the leader of 4 pneumatics machine transforming respectively, lead plane all uses dual class to compress nose, use 110kW electric machinery and change auxiliary component. Increase ark of a frequency conversion, reduce low peak to use the empty wagons loss of air time, the pressure that makes sure pneumatics stands is constant, the sources of energy that reduces needless high pressure to cause is wasteful. To undertake centralized controlling to pneumatics machine, increase a couplet to accuse box. Sheet pole compresses before transforming around to check data analysis to transform 4 2.2 132 KW data of pneumatics machine test sees a table 1:

Dual class of 4 110kW after transforming compresses pneumatics machine to check data to see a table 2.

Use 110 KW electric machinery, dual class compresses lead plane, produce tolerance to be taller, power comsumption is reduced, identical capacity circumstance, omit report than original machine, same waste time produces gas more below electric circumstance. 2.3 transform yield to analyse a basis to measure data estimation actually: Before transforming, original pneumatics machine 4 at the same time open, always produce tolerance to be 92.3 M/min, total power comsumption is 643.6kW. After transforming, 4 dual class compress pneumatics machine open, always produce tolerance to be 110.9m/min, total power comsumption is 498.9kW, tolerance increased 18.6m/min, power comsumption reduces 144.7 KW. With moving every year 6000 hours, charge of electricity is 0.65 yuan / spend computation, annual and managing power comsumption 144.7 × 6000=86.82 10 thousand degrees, annual and managing charge of electricity 86.82 × 0.65=56.43 10 thousand yuan. Before transforming, every stere power comsumption is: 643.6/92.3=6.97kW/(m/min) , the tolerance that if consider,increases is 110.9-92.3=18.6m/min about. By compare 6.97kW/(m/min) of result of power bad news at present, moving 6000h, charge of electricity 0.65 yuan / spend computation, increase year of expenditure of tolerance: 18.6 × of 6.97 × 6000 × 0.65=50.56 10 thousand yuan / year, be equivalent to annual and managing charge of electricity five hundred and sixty-four thousand three hundred yuan + five hundred and five thousand six hundred yuan of =106.99 10 thousand yuan. This project predicts to always invest 1 million yuan (include 4 dual class to compress electric machinery of 4 lead plane, 110kW among them, ark of a frequency conversion and couplet accuse box) , investment reclaims cycle is 1 year. The epilogue _ ceaseless development as pneumatics machine technology, dual class compressed a technology to had held dominant position in pneumatics machine industry, show increasingly in the achievement of energy-saving domain especially, after using dual class to compress a technology, more and more empty press reached one level can effect, make way of a of industry of prospective pneumatics machine significant progress, good economic benefits was brought while implementation is energy-saving. END