pre-heater

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1.Product Description:

Pre-heater is a high-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.

The heatexchangeris divided into tubular heat exchanger, spiral plate heat exchanger.And the tubular heat exchanger comprises condenser, Pre-heater, Re-boiler,Evaporator, drying machine. The spiral plate heat exchanger comprisesnon-dismountable and dismountable exchanger.

The heatexchanger is made of carbon steel and stainless steel.

pre-heater

2.New Technology Description:

Five-ColumnThree-Effect Distillation Process

pre-heater

Our company designs and manufactures latest Five-Column Three-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 Distillation Process

pre-heater

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;it saves 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 produce 6 full sets of equipment (including crushing section, liquefying saccharification 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.

4. We own advanced machining equipment and producttesting equipment.

pre-heater

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

pre-heater

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 after receiving the user’s notification.

6.Package & Transport

pre-heater

Q:Please tell me the name of heat exchanger specific .: crossflow heat exchanger

Q:The unit is only about 6 years old. I had the ducts and A/C unit cleaned two days ago. Could they have done something to break it? or else what could it be? It should not break after 6 years...: Depends on if you have a gas or electric furnace on what the problem is. If you have a gas furnace then it sounds like your flame sensor is dirty. It is located either right next to the pilot light or right in front of either the first or second burner. It is a metal rod with ceramic at the other end with one wire plugged into the ceramic end. You need to clean it with fine sandpaper or steel wool. If you have an electric then it sounds like it's going out on a limit. In either case you should call back out the service company who cleaned it and tell it's not working now. This is a call back and they should not charge you for this call. Hope this helps

Q:the heat exchanger went out on our furnace at our summer home. can we still run the central air, or do we have to wait till our new furnace is instlled this fall?: There is no reason that you cannot use your a/c. The furnace not working won't be a factor until this winter.

Q:We rent an apartment, its an old house divided into 4 apartmens. 2 on top, 2 on the the bottom. We are on the bottom floor. The heat is oil heat and the vents are on the wall just above floor level. When the heat kicks on and starts blowing, there is an awful smell that fills up the whole room. Kind of like and oil smell. It is really bad, I cant sleep at night because it stinks so much. I told the landlord and he claims the oil is low and needs to be filled but he never fills it. I cant take it anymore. The tenant upstairs even smells it, so if they can smell it one floor up, imagine how bad it is down here. My question is..is this smell harmful? Could it be carbon monoxcide? We have a 2 year old and I worry about her. I dont want something bad to happen to any of us. I complain all the time but the landlord is too damn lazy to do anything.: The oil smell could be (could be a cracked heat exchanger and the fuel is incomplete combustion) ( oil on the floor or surrounding area near the furnace filter).Could be an old rag logged with oil in the basement. Investigate. Follow your nose. And then report back.

Q:I am using three passes for the heat exchanger. The water flows due to gravity. The tube carries hot water and the shell, cold water. The type of flow is counter flow. The hot stream loses heat to the cold stream twice, as the length is limited and i want to ensure that maximum amt of heat is transferred. The problem is, i don't want the reverse to happen, in case the cold stream is already hotter than the hot stream at exit of the first pass. How do i determine the temperature of the streams at the outlet, for a given mass flow rate, length and dia of pipes, specific heats of the pipe material?? The tubes are horizontally placed, with an inlet on the top and outlet at the bottom.: understand the flow arrgt graph.

Q:Hey it would be a great help if you would tell me the aaplications of transfer of heat.Tomorrow i have to submit my project about heat, but i am not getting the answer.Please help.: Transfer of heat is the principle used in heat exchanger equipments or just simply heat exchangers. Heat exchangers are usually present in thermostats, air conditioners, refrigerators, freezers, etc. The radiators of vehicles are also heat exchanger equipments because it's function is to cool down the engine of the vehicles. Transfer of heat are also employed in ovens (e.g. conventional ovens, or those expensive Convection ovens, etc.), furnaces, driers, evaporators, etc.

Q:It's a central heating unit, individual to our apartment. We have the thermostat set at 71, heat, fan - auto. Within 1 hour the fan had run 3 cycles 15 min each, and the heat only once for about 10 minutes. Our maintenance staff says it's working properly, but our last bill was through the roof and we now have to manually turn on/off the heat.: With your fan switch on the thermostat set to the auto position, the indoor blower turns on and off at different speeds for a/c and heat. For the a/c mode, the fan will be operated on its high speed winding. When heat is called for it will operate on the low speed winding. If the heat source is a gas fired furnace, there will be a delay or several seconds after the burner has lit before the blower starts. The delay allows the heat exchanger to warm up some before moving air through it. When the heat source is electric resistance heater elements, we want the blower to turn on immediately. There is no time delay starting the blower with electric heat. The thermostat decides when there will be a call for heat. When it establishes the call, the heat source is energized and the blower is started. The blower should not turn itself on without the heat or a/c coming on unless the fan switch is set to on. When the fan switch is set to on, the high speed winding is energizes and remains energized as long as the switch is made. The blower does not normally just turn on and run by itself. If you have a natural gas or LP fired furnace it is possible the blower is cycling on at the end of a failed ignition sequence. Different manufacturers have different designs and different regions have slightly different codes. Some require that after a failure 3 times, a machine will fail with the blower on constantly. That forces someone to have the furnace looked at.

Q:GOODMAN H A-18 YRS. OLD HAS CRACK IN HEATING EXCHANGE. CAN I REPLACE IT FOR LESS THAN $1,000 ?: I havent been in the field for some time now. I may be out of touch with prices. Although, I would say yes to your question. I agree with the others if your going to drop a grand.. You'd be better off with a new unit. Energy saving alone would pay you back

Q:I just bought this house during the summer, winter is coming so I started my furnace today and found out soon it started the quot;loud howlingquot; noise is there and stopped when it reached its pressure or completed it cycled, and it will repeat like that all day long, but it works fine. Laars authorized service tech came out and he isn't sure what caused it, he thinks there is some restriction in heat exchanger coil, and recommend to flush the exchanger with chemical to remove quot;gunksquot; out of copper pipe. However there is no GUARRANTTEE! Have anyone experienced this type of noise before?: is the sound coming from the refrigerant lines or out of the blower. if it is the lines depending whether it is a txv or orfice. it could be trash in the line or wrong size orfice. if it is in the blower you may need to clean the blower wheel and any duct work.

Q:Let's just assume I want a heat exchanger to remove 10,000 BTU/hr. Is there a calculation on how to find it's physical size. MOC is steel and the fluid in it is water.: Here are a couple of sites that addess heat exchanger design. The actual process of properly designing a heat exchanger involves many things including a great deal of experience. Just getting the overall heat transfer coefficient right is a major undertaking since theory and application can vary a great deal.

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