Heat Exchanger in Chemical Industry/ El Intercambiador de Calor en La Industria Química

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In industrial production, in order to meet the demands of industrial process, often need to undertake a variety of different ways of heat transformation, such as: heating, cooling, evaporation and condensation, heat exchanger is used to realize the heat exchange and transmission equipment.Through a variety of equipment, while the heat from high temperature fluid is passed to the low temperature of fluid, to meet the needs of the production process.Heat exchanger is widely used in plastic heat exchanger is a kind of strong corrosion resistance, fluorine plastic heat exchanger made first in 1965 by the United States Dupont company success and implements the commercialized.Our country also invested a lot of money and manpower committed to the development of fluorine plastic heat exchanger, zhengzhou university of technology in 1985 successfully developed "teflon (hereinafter referred to as a 4) F tube plate limit expansion pressure heating welding process, solves the fluorine plastic tube to tubesheet connection of key technology.Subsequently, domestically produced various types of fluorine plastic heat exchanger are put into actual production application and achieved good effect.Currently, fluorine plastic heat exchanger by manufacturers from a single on-demand production and development to the enterprise standard control of the modular design of series production.The traditional heat exchanger compared with fluorine plastic heat exchanger has many differences.Such as common metal heat exchanger with easy to corrosion and heat transfer coefficients by defects such as dirt layer thickness varies: made of nonmetal materials such as heat exchanger is fragile, bulky, and low efficiency of defects;With you, the heat exchanger of rare metal materials because of its expensive to popularization and application.While fluorine plastic heat exchanger can make up for the defects in large extent.Ceng heater, a heat exchange device, can also be called heat exchanger (heat exchanger), the "heater" gas not electricity, connection on the heating pipe, heating temperatures of hot water and tap water in heat exchange equipment inside, can be continuous use of hot water.


We have organized several common questions for our clients,may help you sincerely:

①How about your company?

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel,is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served

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Q:Are Electrical Engineering and Electronics Engineering two separate majors?
Many institutions do not make a distinction. But 'electrical' engineering deals with components that work at the line (mains) frequency, generally large in scale, power generators, high power transformers, very high voltages etc. 'Electronics' engineering deals with components over a large bandwidth, DC and up, generally small in scale, relatively lower power, lower voltages and small size. You probably want 'Electrical Engineering Computer Science'.
Q:Is it okay to use ATEX certified electrical equipment on Shabbos?
When I was in fourth grade, the science teacher taught us the physics definition of work and explained how it differs from the everyday definition of work Much like that -- Jewish legal definitions of Hebrew words do not always line up perfectly with the everyday use of English words that aproximate them. With electrical items, the prohibition of fire is only one of the prohibitions to be aware of for Shabbat -- off the top of my head, there is also boneh (building) and bishul (cooking) On the reverse side -- your logic does not hold in even the most basic English definition. It is only the Karaites that believe there is a Shabbat prohibition of fire, the normative prohibition is on making fire and putting out fire -- thus, there are quite a few devices used on Shabbat that are straight forwardly on fire (well, heck -- just think of the candles themselves!!!) A Shabbat lamp is simply always on - but has some cover to keep the light from bothering. Hopefuly, this whole structure is well insulated (I don't know -- never used one)
Q:Highest temperature you can reach with electrical discharge or something like that?
There is a limit. The temperature of an electric arc (the plasma formed by an electrical discharge) is on the order of 10,000 C. This temperature is high enough to melt any substance known and to vaporize almost any substance known. Of course the amount of heat contained in that arc depends on a number of things like the amperage, the electrical power, and the material making up that plasma. You can produce an arc with a flashlight battery but the heat content of that arc is tiny. However, if you are a group of atoms of, for example, copper, participating in that arc, you are going to melt and some of you are going to vaporize. If you want to learn more about exotic ways to acheive very high temperatures (enough to initiate nuclear fusion), google the Lawrence Livermore National Laboratory and their project on laser ignition for fusion research.
Q:How do you check the terminal tempereture of a certain electrical switchgear?
In the UK they use a plastic fitting into which you place the wires and screw up. They come in many sizes and in banks of ten. You cut the plastic for the number of connections you need.
Q:Electrical system in a residential building.?
the neutral of the building is disconnected from the utility mains neutral, that's why you are getting different voltages for different loads call a good electrician to reconnect the neutral And this problem can only happen when the building is connected with a 3 phase electric supply
Q:Will I get interference if I run an electrical wire and speaker wire through the same conduit?
You best safe guard is to use UTP for the wiring - that way you will be sure there will be no hassles
Q:my appliance says it needs a 15 amp NEMA 5-15R outlet. picture looks like houselhold one. Are they the same?
What they are describing is a single outlet rather than the normal duplex outlet that we are all familiar with. They want you to have a dedicated single outlet protected by a 15A. circuit breaker. Most house receptacles are on a 20A. circuit and for some reason they want you to protect the appliance with only 15A. hence the different receptacle. Since you do not state what appliance this is I cannot advise you if the regular duplex 20A. receptacle would be OK to use. If they want you to use the NEMA 5-15R it would be best to follow their recommendation and have a dedicated line run protected with a 15A. breaker. I just noticed that you asked about the six outlet power bar. This is not exactly what they want but those power bars are usually protected with a 15A. mini breaker. You could use that but do not plug anything else into the other outlets on the bar and try to connect the power bar into a dedicated line. It seems that the appliance manufacturer wants the device protected by a 15A breaker and does not want the power robbed by anything else plugged into that circuit.
Q:How exactly would a huge solar flare destroy the electrical grid?
It's a worry, especially by the insurance companies which have been raking in premiums for years and never had to pay out. Gosh, paying out might affect their profits. As the 2012-3 solar max will likely be lower than AVERAGE, the chances of a CME during it are low. We COULD get a CME today, as they are NOT tied to solar Maximums like a lot of people think. Its just unlikely. Fear sells, so expect your insurance companies to raise your rates, even though they won't pay out anything. Oh, and they won't LOWER your rates in 2013, either. Have you figured out who is in charge, yet?
Q:How can I mix electrical engineering with music?
this question really attract me, i am also electrical engineer but graduated 12 years a go and built good experience in electrification of buildings and infrastructure, but still i love music and i still dreaming to work and may be to study the sound engineering I think answering your question is not hard these engineers are into(music and sound) they are designing testing and operating electronic equipments used to record,produce and mix sounds , you can find them in music industry,concerts,film making, radio stationsetc you can get more info from the net(check this one as example bls.gov/oco/ocos109.htm ) , if you really interested give it a try, especially for you as you are still in university, I do not know if it is easy for them to find a job and how much they are getting(if you have some info,please let me know), also not sure whether they are considered as engineers or technician ,do not know if this profession is regulated like the profession of electrical engineer wish you all the best, keep in touch
Q:Electrical engineering forced on mechanical engineers in real world?
You need to talk your employer into subcontracting the electrical design work out to someone capable of dealing with it, or get an electrical equipment rep to help you with your problem.

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