The article by ” compressor ” the magazine is achieved formerly, without allowing, must not reprint!
As the rapid development of industry and economy, people to the sources of energy ask for also grow day and day. Accompany the mankind’s unending exploitation, the reserves of fossil fuel diminishs increasingly, world energy crisis grows day and day. Subsequently, of the sources of energy reasonable use, the repeated usage of the efficient benefit in order to of the sources of energy and the sources of energy, reclaim use the wide attention that got people. China is population big country, the sources of energy is used compare insecurity relatively, face the sources of energy to produce cannot high speed development is badly in need of economically rapid development again, only two roads are feasible: It is as far as possible the yield that raises the sources of energy, 2 be the sources of energy is managing use.
Labour amateur reclaims hotly and be being used is the efficient way that raises energy utilization rate and environmental protection, the protection that reachs an environment to raising the 2 benefit in order to of the development of national economy, the sources of energy has important sense. Accordingly, be versed in spare heat reclaimed to be paid close attention to in a lot of province and industry by huge.
Be versed in spare heat is to point to, the quantity of heat that industry releases in manufacturing process (redundant quantity of heat, the rest quantity of heat, wasteful quantity of heat) . More than heat reclaims even if reclaim these quantity of heat through unit of some kind of technology rise, get way of a kind of when make full use of energy-saving environmental protection. Current, more than heat reclaims to already was applied extensively at the market in the center, if heat of flue gas beyond reclaims, heat of air conditioning beyond reclaims etc, can save the sources of energy to use up for numerous company plant, bring a lot of advantage.
Reclaim 2 times as the sources of energy those who use put forward, pneumatics machine more than heat reclaims also more and more be taken seriously, apply extensively in the industry such as spin, colliery, steely, power plant at present.
Pneumatics machine more than heat reclaims the sense is great
Pneumatics machine is the device that plant business must use, air is nature bestows our free resource, its are compressed8 nevertheless cost is quite high. From the induction air in the environment, after the course is compressed high-pressured air eduction, this one process not only raised airy pressure potential energy, produced many compression to heat up at the same time. According to statistic of arrange of American the sources of energy, use at increasing the electric energy that air potential energy wastes truly, occupy about 20 ％ only in total power consumption, the quantity of heat of electric energy translate into of about 80 ％ , be equivalent to costing 10kW electric energy to gain 2kW air motive force can. These quantity of heat were not made full use of before, heated up a system to discharge atmosphere directly through coming loose however in the center, not only not energy-saving still not environmental protection. Pneumatics machine comes loose hot principle sees chart 2.
The temperature of oil gas mixture of airframe of pneumatics machine eduction is as high as 80-100 ℃ commonly, if the quantity of heat of pneumatics machine cannot put forward in time, can cause serious damage to equipment, affect efficiency yield gas. If reach oily lukewarm upper limit, meeting protection stops machine. Accordingly, pneumatics opportunity configures wind cold or water-cooling system undertakes dropping in temperature, and this process that drops in temperature compulsively, also be wasteful process actually.
The quantity of heat that is wasted to these actually, can be reclaimed to use very much greatly partly. Add outfit sky to press machine beyond heat to reclaim after device, major heat energy is made full use of to rise, protect action to arriving since the environment, reduce the integral specific power consumption of plant business at the same time. Through pneumatics machine more than heat reclaims equipment uses the redundant heat energy of pneumatics machine entirely rise, but cold water translate into 45 degrees of hot water to 85 degrees. Wide application produces the life at the enterprise in the center, if live,roast, central heating supplies hot water, sirocco, eletroplate groovy hot water, boiler complement hot water, rinsing equipment uses water to wait.
According to the country newest those who promulgate ” content of boiler air pollution discharges a standard ” (GB13271-2014) , the State Council ” action of air pollution prevention and cure plans ” , coal fired boiler must be carried out since July 1, 2016 carry out more strict discharge a standard, and in principle 10t reachs pannikin of the following coal fired furnace must fall into disuse as soon as possible. So pneumatics machine more than heat reclaims became a kind of trend.
By chart 3, 4 contrast, can see more than heat reclaims to let an enterprise answer a country not only apparently policy of energy-saving environmental protection, can save a large number of fund for the enterprise more.
Will tell to the enterprise, should effective analysis reclaims the design program that uses machine of more than hot pneumatics and economic benefits, find out effective program in order to facilitate, sufficient play goes out reclaim the corresponding function of more than heat, chart 5 for pneumatics machine more than heat reclaims market analysis.
Pneumatics machine more than heat reclaims aircrew
Be based on this kind of circumstance, enterprise of quite a few changes those who heat up means to adjust those who achieve heat energy to reclaim through be opposite use, this kind is transformed not only can utmost ground reclaims energy, reduce specific power consumption, still can improve the efficiency yield gas of pneumatics machine, prolong life of pneumatics aircraft equipment. Be aimed at this one circumstance, more than heat reclaims equipment is reflected slowly in the industry come out advantage.
Pneumatics machine more than heat reclaims aircrew, be a kind reclaim technically the heat energy of high temperature oil gas that uses the generation when pneumatics accident goes, implementation heat energy gathers the device that use. Following plan institute are shown, electromotor drives screw to rotate air classics filter by inspiratory screw high-pressured air is formed in compressor, and with back and forth oil mixes form high temperature oil gas to mix style, enter oil gas segregator, oil gas mixes body to be divided into high temperature oil and high-pressured gas, the user furnishs to use after aeriform classics radiator among them, and the oil gas that make a round trip is departed after oil gas segregator, heat comes loose to filter by filter via condenser again after condensing into liquid state return compressor to complete process of a loop. More than heat reclaims machine be make a round trip high temperature oily (or high temperature oil gas) introduce pneumatics machine more than heat reclaims inside aircrew, reclaim adequately through heat exchanger the high temperature heat energy that pneumatics accident produces in travel process, the significant movement that at the same time the effective moving temperature that reduced pneumatics chance raises pneumatics accident to go increases produce tolerance.
Because compressor is in-house the loop is lukewarm to oil have a demand, the calorific value that increases different temperature is different, efficiency of heat exchanger heat exchange is different, according to the project practical experience, the axial power of the compressor of amount to of quantity of heat that can be used is 65 ％ about, oil gas double reclaim answer effects rate to be able to amount to 80 ％ above. Answer debit type to carry oil lukewarm (75 ℃ – 90 ℃ ) heat reclaims give priority to, air temperature (75 ℃ – 90 ℃ ) heat reclaims for complementary.
The quantity of heat that more than heat reclaims forecasts pneumatics chance
Analyse in the light of pneumatics machine quantity of heat with 1 132 for exemple, pneumatics plane to load is 80% , round-the-clock 24 hours of computation, press 360 days of computation every year, convert of charge of electricity 0.7 yuan / KW.h, computation is as follows (heat exchange efficiency with 65% computation, heat exchanger efficiency presses 90% computation) :
Can reclaim hourly quantity of heat:
Consult unit conversion table is knowable, 1kWh=860kcal, machine of pneumatics of only station can offer quantity of heat to be:
Reclaiming quantity of heat is calculated for employee bathing number
The hot water amount that can produce 40 ℃ hourly is:
M=Q/(c× △ T)
=52460÷45(temperature is poor)
Can produce hot water 1165×24=27960kg =27 everyday ton, bathe to be 100kg each everyday plan, can bathe for 270 people.
Pneumatics machine more than heat reclaims foreground is bright
Promote as the abidance of Chinese socioeconomy level, price of correspondence of product of of all kinds the sources of energy rises ceaselessly, it is crucial that the sources of energy uses up the production to industrial business to manage, the energy cost that company place faces also is to grow day and day, because this correspondence establishment is energy-saving ameliorative necessity is mainer and mainer.
Meanwhile, as science and technology innovate increasingly, make more than heat reclaims the energy-saving research of the domain got rapid development, the more than heat of pneumatics machine reclaims the development that got materiality and use. The fact proves, use pneumatics machine more than hot heat addition not only what do not affect pneumatics engine is normal move, and to pneumatics engine system moving is very beneficial.
Invest, be benefited boundless. In environmental protection energy-saving times, the benefit that more than heat reclaims mixes pneumatics machine advantage will more and more apparent.