Re-boiler

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1.Product Description:

Re-boiler is ahigh-efficient heat exchanging equipment used in alcohol, solvent, foodferment, pharmaceutical, petrochemical, refrigeration, organic chemistry, metallurgicalindustry, suitable for convection heat transfer of liquidtoliquid,gas to gas,gas to liquid. Re-boiler is made of carbon steel and stainless steel.

2.New Technology Description:

Five-ColumnThree-Effect Distillation Process

Our company designs and manufactures latestFive-ColumnThree-Effect Distillation equipment.This new process is promoted on the basisof traditional five-column differential-pressure column and mainly used forsuper-fine alcohol production.

The key of this process is the heatingmethods,the steam heats one column directly andtransfers theheat to other 4 columnsto achieve three-effect thermal couplingand energy-saving effects.

In terms of electricityefficiency, it can save 50% electricity and avoid the repairing ofcirculating pumps and also extend the working life of there-boilers.

Energy Consumption & Quality Indicator Table forSuper-fine Alcohol

No.

Item

Unit

Traditional Process

New Process

1

耗汽量Steam Consumption

t/t

3.0

2.3

2

色度Colority

No.

9.5

8

3

乙醇 Alcohol

%v/v

95.5

96.5

4

硫酸试验Sulfuric Acid Test

No.

70

9

5

醛(以乙醛计)Aldehyde (as acetaldehyde)

mg/l

28

2

6

甲醇Methanol

mg/l

18

3

7

正丙醇n-propyl alcohol

mg/l

15

2

8

异丁醇+异戊醇Isobutanol+isoamylol

g/l

27.5

2

9

酸(以乙酸计)Acid(as acetic acid)

mg/l

19

9

10

脂(乙酸乙酯)Ester (as acetic ether)

mg/l

22

16

11

不挥发物Nonvolatile matter

mg/l

23

12

12

重金属(以Pb计)Heavy metal

mg/l

0.65

0.4

13

氰化物(以Hcn计)Cyanide(as HCN)

mg/l

3.7

2

Double-Mash-Column Three-Effect DistillationProcess

This process applies to the production ofgeneral-grade alcohol& fuel ethanol, and it was awarded Chinese nationalpatent, it is the onlysuccessfulapplicationof doublemash column & three-effect in the world,whichproduces general-grade alcohol.

This process is composed by mash column,rectification column and composite column. The composite column functions asmash column and rectification column.

The key of this process is the heatingmethods: the steam heats one column directly andtransfers the heat to other 2 columns to achieve three-effect thermal couplingand energy-saving effects.

The advantage of this process is energy-saving;itsaves over 40% steam

Energy Consumption & Quality Indicator Table for General-Grade Alcohol

No.

Item

Unit

Traditional  Process

New Process

1

耗电量Electricity  Consumption

kwh/t

15

20

2

耗汽量Steam  Consumption

t/t

2.3

1.4

3

耗水量Water  Consumption

t/t

7

5

4

色度Colority

No.

9.5

8

5

乙醇 Alcohol

%v/v

95.5

95.5

6

硫酸试验Sulfuric Acid  Test

No.

70

55

7

Aldehyde (as acetaldehyde)

mg/l

28

25

8

甲醇Methanol

mg/l

100

55

9

正丙醇n-propyl alcohol

mg/l

75

35

10

异丁醇+异戊醇Isobutanol+isoamylol

mg/l

27.5

26

11

酸(以乙酸计)Acid(as acetic acid)

mg/l

19

18

12

脂(乙酸乙酯)Ester (as acetic ether)

mg/l

22

20

13

不挥发物Nonvolatile matter

mg/l

23

21

14

重金属(以Pb计)Heavy metal

mg/l

0.65

0.5

15

氰化物(以Hcn计)Cyanide(as HCN)

mg/l

3.7

3

3. Production Capability

1.       Our company was established in the 1950s,designed and manufactured the first stainlesssteel distillation column in China.

2.       Our company can produce6 full sets of equipment (including crushing section, liquefyingsaccharification section, fermentation section, distillation section and DDGSsection) in a

month.

3.       Among 16 production workshops,3 workshops arefor mechanic manufacture, 5 workshops arefor manufacturing process, 8 workshopsare for assembling & welding.

Weown advanced machining equipment and product testing equipment.

4. Designed capability

1). We own Design License of SpecialEquipment D1 & D2 Class; Manufacture License of Special Equipment A2 Class;Design License of Special Equipment GC

Class.

2).Our company achieves more than 20 patentcertificates on distillation, DDGS, and other fields.

3). Ourcompany owns ASME certification, ISO 9001 Quality System Certification, ISO14001 Environmental Management System Certification & GB/T28001Occupational Health and Safety Management System Certification

5. After-sales Service

1).Our company can provide a sophisticatedproduct after-sale service and can ensure the implementation, maintenance andcommission of projects.

2). We can reach the project site afterreceiving the user’s notification.

6.Package & Transport

Q:Is there anything I can purchase to force at least some of the heat back into the room?
the fireplace would have to have been designed with a seperate heat chamber or else you would be blowing smoke out also....the old metal heatilators were designed this way...glass doors and an air source from the out side would help...got an ash dump and a clean-out door??open the ash dump and go outside and open the clean out door...this will bring combustion air in from the outside...
Q:i need to no how to pipe the heat exchanger and boiler into the systsm thanks craig
The heater goes after the filter pump system. The heater should come with instructions. I am not familiar with that brand, it is a pool heater right? You can't use a normal house boiler and run pool water through it. You however can use it with a heat exchanger which is not done because of the cost.
Q:I had a brand new Heating and A/C unit installed in 2008. The heat currently only works in Emergency Mode. A technician came out and said the TXV needs replacement. A) Should it need to be replaced so soon? B) Is a TXV the same as the heat exchanger C) How much should a replacement cost?
TXV stands for Thermal Expansion Valve, a device which converts liquid refrigerant into a gas to create cooling in the AC coil. Replacement would involve evacuating the refrigerant , installing the new valve, and refilling and testing the equipment. Most warranties would cover this part for 5 or 10 years. Two years is an extremely short life for this part, which could mean the original installation was done improperly by the factory or the installer. I would give the manufacturer a call to see if they would help.
Q:My autistic son threw crumbs down all the vents. I tried to vacuum them up, but the vacuum wasn't working. Then I forgot about the crumbs. =(Now my cooling/heat system is broken. It was an OLD system, and had been giving me problems since the beginning. I think it was on the verge of collapse a looooong time ago.Could the crumbs in the vents have caused the whole system to break down? It doesn't seem likely to me.
The only way crumbs in the vents would cause a fire is if they ended up all the way back at the unit and sat on the heat exchanger (even then very unlikely) or if it is electric heat and the crumbs gathered on the heating elements (still pretty unlikely). It is most likely the unit had internal issues that caused the fire.
Q:What's the most energy efficient way to heat your house?
Make sure your home is well insulated. Insulation helps keep heat in during the Winter and keep it cool during the Summer. Turn your heating dial down 2 degrees from what you normally have it on. Two degrees doesn't make much of a difference, but it'll help you save a lot on your energy use. DON'T use personal heaters. Blankets are always better. Truthfully, they use twice as much energy as your regular central unit. Turn your heat down as low as you can stand it at night. Stay warm by using extra blankets and using a water pouch full of warm water. You stay warm during the night, and you can always kick the heat up some when you wake up. Not only is this energy efficient, but it'll also help you save a lot of money on your utility bill.
Q:LP gas burns according to the following exothermic reaction: C3H8(g)+5O2(g)--gt;3CO2(g)+4H2O(g)delta H of reaction=-2004 kjWhat mass of LP gas is necessary to heat 1.3 L of water from room temperature 25 C to boiling 100. C? Assume that during heating, 14% of the heat emitted by the LP gas combustion goes to heat the water. The rest is lost as heat to the surroundings.
mass of water that needs to be put to boiling point Mass Water = density volume = (1000 kg/m^3) (1.3)(0.1)^3 = 1.3 kg = 1300 grs of water It takes 4.184 joules to elevate 1 degree of temperature per grm of water. So the heat you need to increase the temp from 25 to 100 is Heat = 4.184 (1300) = 5439.2 J The heat exchanger appears to have an efficiency of 14%, then the amount of heat required from the propane to heat up the water is Heat from propane = 5439 / 0.14 = 38850 J The heat released by the combustion of LP gas is 2004 kJ/mol of propane. Then, the number of moles that you need is Moles of Propane = 38850 / 2004E3 = 0.019 moles Multiply that by the molecular mass you get Mass of propane = 0.019 * 44.1 = 0.85 grs of LP gas
Q:Hi.. I'm kinda confused with this one... i hope someone helps me here !A dryer operates for 60 hours/week, 50 weeks/year. It exhausts 200 kW/hr of heat and the value of energy is 6p/kWh. A heat exchanger with a 50% efficiency is put into the exhaust stream to recover a proportion of this heat. The installed cost of the heat exchanger is ?22,500. The heat exchanger pressure drop needs a 2 kW fan to overcome it, and the cost of electricity is 10p/kWh. (I have the final answer - but no luck getting it !! - 10 points to the one who gets it right with good enough explanation for me to understand :)Thanks !
You don't actually ask a question! But I can guess where the problem is going. Always carry the units along to help keep things straight. BTW, dryer is 200kW hr / hr or 200kW. Dryer operates = 50 wk/yr * 60 hr/wk = 3000 hr/yr Dryer cost = 3000 hr/yr * 200 kW * ?0.06/kWhr = ?36,000/yr Cost to operate heat exchanger: = 3000 hr/yr * 2 kW * ?0.10 /kWhr = ?600/yr The heat exchanger recovers: ?36,000/yr * 50% efficiency - ?600/yr = ?17,400/yr Now, if the question is payback period, it is: = ?22,500 / ?17,400/yr = 1.293 yr
Q:It has 1 shell pass, 5 tubes each making 2 passes, each 5m long. External diameter of 22mm and internal diameter of 20mm with wall roghness of 1.5 micro m. Made of stainless steel with a thermal conductivity of 15W/mk.It cools oil using water.Water enters: 55 degrees C, k=0.681W/mK, Cp=4211J/kgK, Pr=1.7, density=958kg/m3, μ=0.000276Pa.s.Oil enters: 80 degrees C, exits: 55 degrees C, mass flow rate: 2kg/s, density=842, μ=0.0186, k=0.137, Cp=2206, Pr=300.1. How do you find the heat transfer rate from oil to water? I did Q=mCp(Tin-Tout) ---gt; 2*2.206(80-60) = 88.24Kw...is this right?2. How do you find the mass flow rate of the water to achieve no.1?
Your first step seems correct however I am used to heat being expressed in BTUs or Calories. In order to determine the amount of water needed, you need to calculate the surface area of the exchanger. Next you have to calculate or estimate the over all heat transfer coefficient for the unit. Typically in coolers using water, the water is on the tube side of the exchanger. To calculate the overall heat transfer coefficient you have to assume a velocity for the water and determine the various film coefficients for the water side and the oil side of the unit. You will find that the heat transfer capability of the metal in the tubes has very little to do with the overall heat transfer coefficient. The viscosity of the oil and the velocity of the water have a much bigger impact. The relationship that you will be dealing with is this basic equation: Heat transferred equals the overall heat transfer coefficient times the log mean temperature difference between the two fluid times the surface area. This means you are going to have to use trial and error to balance, film coefficients, water flow rate and log mean temperature differences to find a solution. This is really not a simple problem if it is to be done by direct calculation. There are computer programs that are a great aid. Here is one site that might be of help:
Q:Naturally designed air convention should be incorporated into the design so that summer heat can be released through roof vents without the use of mechanical systems and human and radiant heat retained in the winter. The goal is to limit and if possible, eliminate the use of electric or fossil fuel operated systems to maintain acceptable temperatures. For design purposes, the contractor shall consider an acceptable temperature range of 18° C (64.4°F) to 28°C (82.4° F).Can anyone tell me that which kind of heating and cooling system is required for above, to use less or eliminate the electrical and mechanical system and maintain the temperature between 18° C (64.4°F) to 28°C (82.4° F)?
It can be done by first insulating the building really well then drawing air into the building through water cooler heat exchangers passing the air through the occupied spaces and up out of the building through chimneys to draw it out. I don't think it is practical because environmental codes require a minimum air flow which you may not be able to achieve under all conditions. You may be able to achieve this in a cave. Either way is really expensive. I think this may depend on what country it's in and their codes..
Q:Hi all, I am in the process of building a greenhouse and I am looking into sources of heating primarily in winter. I would like to use wood as a source of heat because I have a large amount of it.Also, I live in the Upper Midwest (Western Minnesota, by S. Dakota) so the weather can get very cold and very warm within a matter of days.I would like to see if anyone knows any links, or tips on how to build it. I would also like to use bricks around it, for the foundation and the chamber. It doesn't need to be large, but enough to heat (about 55-65 F) in a 6'x8'x10' greenhouse.Any tips would be greatly accepted! Thanks again!
Mcgrath is a very dedicated and experienced woodworker who knows what he is talking about when it comes to woodworking and DIY projects s he has been a woodworker for many many years.

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