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.

Re-boiler

2.New Technology Description:

Five-ColumnThree-Effect Distillation Process

Re-boiler

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

Re-boiler

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	醛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.

Re-boiler

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

Re-boiler

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

Re-boiler

Q: The heating unit will start out blowing hot air and then will change over to cold air. If I turn it off for about 5-10 minutes and restart it, then it will blow warm air again and then eventually cold air. This is pretty aggervating, especially on a cold night. I've had it checked out and the guy told me that its what most older units do like that. I think hes full of crap. Any suggestions? By the way, the filter stays cleaned out monthly.: You could have a fan/limit control hanging up on your furnace. I am assuming that it is a gas furnace. If it is a heat pump then the air will feel cooler than it does when the electric heaters kick on. In cold temperatures the heat pump does not produce nearly as warm of an air temperature as it does when it is in the 40's. If there is something wrong with the heat pump then it usually blows air in the 70's. Another problem could be that it is sticking in defrost which is air conditioned air. That is really cold air. You need someone that is familiar with your type of heat. Ask friends who they have work on their systems since that is the best way to pre-qualify the technician. Good Luck!

Q: important uses of shehh and tube heat exchanger in industry and manifacturing: They are used in many industries where it is necessary to heat or cool a fluid stream or to simply save the heat that might otherwise be lost. Some examples are: 1. condensers for steam in a power plant. 2. heaters for boiler feed water in a power plant 3. condensers and reboilers in fractionation systems in refineries and petrochemical plants. 4. chillers and heaters in HVAC systems in buildings

Q: For a shell-and-tube heat exchanger problem my professor gave me 3.4 ° API for crude oil and 4.2 ° API for KEROSENE. What does this number mean??? What is ° API???: It's a measure of density as defined by the American Petroleum Institute. Both of your fluids are heavier than water since their values are below ten.

Q: need info on earth powered heat/air exchangers?: I think you are referring to ground source heat pumps. Look for that on the Internet.

Q: What is a regenerative heat exchanger?: Regenerative heat exchangers for regenerative heat transfer equipment.

Q: water at a rate of 600 lm/hr runs through a heat exchanger, entering as saturated liquid at 30 psia and leaving as saturated vapor at 30 psia. the heat is supplied by a carnot heat pump operating from low temperature reservoir at 60 F. find the rate of work into the heat pump.: You are an engineer so you should try and figure it out from your book and examples from the text. But to lead you in the direction of the right answer: Look at the state of the water before it enters the HE, it is saturated liquid, which means that all the states are constrained (there is a temperature, pressure, U, H, V) that you know from the steam tables all about state 1. Now look at the state of the water after it enters the HE, it is saturated vapor, which means that it is constrained again ( you know the temp, press, etc from the steam tables). You can use your equations that you learned in class and information now to find the W of the heat pump.

Q: it is a worcester combination boiler and it seems to be an intermittent fault.: I assume your boiler provides both heat and hot water...so you have a coil in the boiler that gives you hot water? This sounds like a control problem. There is an aquastat that senses when the boiler calls for hot water. It may be malfunctioning. It is best to have your boiler serviced by a reputable and licensed plumbing contractor.

Q: What are the types of cleaning for shell and tube heat exchanger?: The only effective clean for a shell and tube is a chemical clean. Some you can open up and power clean the tube bundle and the shell side but others are sealed. It depends on what type you have but if you don't want to be pulling it apart simple circulate the appropriate chemical cleaner through both sides of the exchanger. Be careful to use what ever the manufacturer recommends which will depend on what the process is being used for. Unless you are in a processing plant I assume you are talking about a hot water system which will be pushing steam through the shell side and water through the tubes or vica versa and you are trying to remove scale build up or similar. There are some good anti scale chemicals available on the market which can be used safely. Hope this helps

Q: fixed headfixed head coverfloating headfloating head covergaskethead baffleshellshell baffleshellside nozzletubetube bundletube sheettubeside nozzle: Go to page 7 of this PDF and you will get a cross section of a typical heat exchanger. www.ijee.dit.ie/articles/Vol14-3/...

Q: I have a Lennox Pulse 21 furnace installed around 1996 or so. A heating cooling company came out today to discuss installing A/C on the unit.After looking at the heat exchanger, he told me there was green corrosion and subject to Lennox's recall. He told me that Lennox will give me a brand new furnace for free, all I have to do is pay for installation.My concern is that he has a great incentive to replace my furnace because he will charge the labor for replacement, perhaps enough of an incentive to suggest replacing a furnace that doesn't need replacement (considering the fact that this is not why I called him out in the first place).Has anyone else replaced their Lennox Pulse 21 via this heat exchanger recall program? If so, do you have any suggestions?: RE: What is the Lennox Pulse 21 heat exchanger recall? I have a Lennox Pulse 21 furnace installed around 1996 or so. A heating cooling company came out today to discuss installing A/C on the unit. After looking at the heat exchanger, he told me there was green corrosion and subject to Lennox's recall. He told me that Lennox will give me a...

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