Customized Stainless Steel Double Tube Sheet Heat Exchanger In Pharmaceutical
| Customized Stainless Steel Double Tube Sheet Heat Exchanger In Pharmaceutical |
| Profile type |
Tuber exchanger |
| Material |
SS304 or SS316L |
| Capacity |
0.1T/H-100T/H (Customized) |
| Working pressure |
0.8Mpa(Customized) |
| Heating Area/Cooling Area |
0.1~20M2 |
| The Diameter of Pipe |
Φ6/Φ9/Φ12/Φ16/Φ19/Φ25mm |
| Inlet Outlet |
Φ19~ Φ219mm |
Features
(Comparison between plate heat exchanger and shell-and-tube heat exchanger)
a. High heat transfer coefficient;
Since different corrugated plates are inverted each other to form a complex flow channel, the fluid flows in a three-dimensional rotating flow in the flow channel between the corrugated plates, and can generate turbulent flow at a low Reynolds number (generally Re=50~200), so heat transfer The coefficient is high, generally considered to be 3 to 5 times that of the shell-and-tube type.
b. The logarithmic average temperature difference is large, and the terminal temperature difference is small.
In the shell-and-tube heat exchanger, the two fluids flow in the tube side and the shell side respectively, and the flow is generally cross-flow, and the logarithmic average temperature difference correction coefficient is small, while the plate heat exchanger mostly adopts co-current or counter-current flow. , The correction coefficient is usually about 0.95. In addition, the flow of cold and hot fluids in the plate heat exchanger is parallel to the heat exchange surface without bypass flow, so the temperature difference at the end of the plate heat exchanger is small, and the water heat can be exchanged. Lower than 1ºC, while the shell-and-tube heat exchanger is generally 5ºCfff.
c. Small footprint.
The plate heat exchanger has a compact structure. The heat exchange area per unit volume is 2 to 5 times that of the shell-and-tube type. Unlike the shell-and-tube type, there is no need to reserve a place for the maintenance of the tube bundle. Therefore, the same heat exchange can be achieved. The area of the heat exchanger is about 1/5~1/8 of the shell-and-tube heat exchanger.
d. Easy to change the heat exchange area or process combination;
As long as you increase or decrease a few plates, you can increase or decrease the heat exchange area; change the plate arrangement or replace a few plates to achieve the required process combination and adapt to new heat exchange conditions. The heat transfer area of the shell heat exchanger is almost impossible to increase.
e. Light weight;
The plate thickness of the plate heat exchanger is only 0.4~0.8mm, while the thickness of the heat exchange tube of the shell-and-tube heat exchanger is 2.0~2.5mm. The shell-and-tube shell is much heavier than the frame of the plate heat exchanger , The plate heat exchanger is generally only about 1/5 of the weight of the shell-and-tube type. [4]
f. The price is low;
Using the same material, under the same heat exchange area, the price of the plate heat exchanger is about 40%~60% lower than that of the shell-and-tube type.
g. Easy to make;
The heat transfer plate of the plate heat exchanger is processed by stamping, which has a high degree of standardization and can be mass-produced. The shell-and-tube heat exchanger is generally made by hand.
h. Easy to clean;
The frame type plate heat exchanger only needs to loosen the compression bolts to loosen the plate bundle and remove the plates for mechanical cleaning. This is very convenient for the heat exchange process that requires frequent cleaning of the equipment.
i. Small heat loss;
Only the shell plate of the heat transfer plate of the plate heat exchanger is exposed to the atmosphere, so the heat dissipation loss can be neglected, and no heat preservation measures are required. The shell-and-tube heat exchanger has a large heat loss and requires a thermal insulation layer.
j. Smaller capacity;
It is about 10%-20% of the shell-and-tube heat exchanger.
k. The pressure loss per unit length is large;
Due to the small gap between the heat transfer surfaces and the unevenness on the heat transfer surface, the pressure loss is greater than that of the traditional smooth tube.
l. Not easy to scale;
Due to the full turbulence inside, it is not easy to scale, and its scale coefficient is only 1/3~1/10 of the shell-and-tube heat exchanger.
m. The working pressure should not be too high, and leakage may occur;
The plate heat exchanger is sealed with a gasket. The working pressure should generally not exceed 2.5MPa, and the temperature of the medium should be below 250°C, otherwise it may leak.
n. Easy to block;
Since the passage between the plates is very narrow, generally only 2~5mm, when the heat exchange medium contains larger particles or fibrous substances, it is easy to block the passage between the plates.
The unique structure of double tubesheet heat exchanger makes the two media inside and outside the heat exchanger tube always keep isolated, immiscible, immiscible and free of cross contamination of materials.
Design Features
1. High efficiency and energy saving: Its heat transfer coefficient is 3000~4500kcal/m2·°C·h, which is 3~5 times higher than the heat efficiency of shell-and-tube heat exchangers.
2. Compact structure: The plates of the plate heat exchanger are closely arranged. Compared with other types of heat exchangers, the plate heat exchanger occupies less area and space. The plate heat exchanger with the same area of heat exchange is only tube 1/5 of the shell heat exchanger.
3. Easy to clean and easy to disassemble: The plate heat exchanger is clamped by clamping bolts, so it is easy to disassemble and can be opened for cleaning at any time. At the same time, because the plate surface is smooth and clean, the turbulence is high and it is not easy to scale.
4. Long service life: The plate heat exchanger is made of stainless steel or titanium alloy plates, which is resistant to various corrosive media. The rubber pads can be replaced at will, and it is convenient to disassemble and repair.
5. Strong adaptability: The plates of the plate heat exchanger are independent components, and the process can be increased or decreased at will according to the requirements, with various forms; it can be applied to various different and technological requirements.
6. No liquid leakage, the plate heat exchanger seal groove is equipped with a liquid drain channel, and various media will not collude, that is,
Application field
Plate heat exchangers have been widely used in metallurgy, mining, petroleum, chemical, electric power, medicine, food, chemical fiber, paper, textile, shipping, heating and other sectors. They can be used for heating, cooling, evaporation, condensation, sterilization, and waste heat. Various situations such as recycling.
Solar energy utilization: Participate in the heat exchange process of antifreeze liquid such as the heat transfer medium ethylene glycol in the solar collector plate to achieve the purpose of using solar energy.
Chemical industry: manufacturing titanium oxide, alcohol fermentation, ammonia synthesis, resin synthesis, rubber manufacturing, cooling phosphoric acid, cooling formaldehyde water, alkali carbon industry, electrolysis alkali production.
Iron and steel industry: cooling quenching oil, cooling electroplating fluid, cooling reducer lubricating oil, cooling rolling mill, wire drawing machine coolant.
Metallurgical industry: heating and cooling of aluminate mother liquor, cooling of sodium aluminate, cooling of lubricating oil for aluminum mills.
Machinery manufacturing industry: all kinds of quenching liquid cooling, cooling presses, industrial mother machine lubricating oil, heating engine oil.
food industry
Sterilization and cooling of salt, dairy products, soy sauce and vinegar, heating and cooling of animal and vegetable oils, heating and cooling of beer and wort in beer production, sugar making, gelatin concentration, sterilization and cooling, manufacturing sodium glutamate.
Textile industry: heat recovery of various waste liquids, cooling of boiling phosphating fibers, cooling of viscose liquid, cooling of acetic acid and acetic anhydride, cooling of aqueous alkali solutions, heating and cooling of viscose filaments.
Paper industry: cooling black water, heating and cooling of bleaching salt and lye, heat recovery of cellophane waste liquid, heating and cooking acid, cooling of sodium hydroxide aqueous solution, recovery of waste liquid of bleached paper, condensation of exhaust gas, pretreatment Hot concentrated pulp-like waste liquid.
centralized heating
Thermal power plant waste heat district heating, heating domestic water, boiler district heating.
Oil industry: heating and cooling synthetic detergent, heating whale oil, cooling vegetable oil, cooling sodium hydroxide, cooling glycerin,
emulsified oil.
Power industry: generator shaft pump cooling, transformer oil cooling.
Ships: diesel engines, central coolers, unloading water coolers, piston coolers, lubricating oil coolers, preheaters, seawater desalination systems (including multi-stage and single-stage).
Mariculture nursery:
The supporting boiler heats up the seawater for nursery seedlings, which has saved the use of coal, thereby saving energy and environmental protection and improving efficiency.
Others: medicine, petroleum, ceramics, glass, cement, geothermal utilization, etc
Usage:
1. Cooling and heating in pharmaceutical products.
2. Cooling and heating of water for injection.
3. Condensation and cooling of clean steam and high-purity steam.
4. The injection water / purified water is heated and cooled, pasteurized, and sterilized with superheated water.
Characteristic:
1. Adopt new manufacturing process to break the traditional manufacturing method.
2. Strong pressure bearing capacity, able to withstand high pressure and vacuum without leakage.
3. Adopt multi pass structure, improve heat transfer efficiency, save energy and reduce consumption.
4. The product is free of detention, blind angle, easy to clean, easy to dismantle structure and conforms to GMP.
5. High quality and precise 316L seamless steel pipe is adopted, with stable material, smooth surface and GMP compliance.
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