The tubular heat exchanger is the most widely used one in chemical
industry and ethanol production.It is mainly composed of shell,
tube plate, heat exchange tube, head, baffle and so
on.The required materials can be made of ordinary carbon steel, red
copper, or stainless steel.During heat transfer, a fluid
enters the joint pipe of the head, flows in the pipe, and flows out
of the outlet pipe at the other end of the head.Another type of
fluid enters by the pipe of the shell and flows out from another
pipe of the shell, which is called the shell side.Different Types
of Shell and Tube Heat Exchangers:Fixed Tubesheet Type:The
structure of tubular heat exchanger is simple, compact and cheap,
but the outer tube cannot be cleaned mechanically.The heat
exchanger tube bundles are connected to the tube plates, which are
welded to the two ends of the shell respectively, and connected to
the top cover, the top cover and the shell are equipped with fluid
inlet and outlet nozzles.A series of baffles perpendicular to the
tube bundles are usually arranged outside the tube.At the same
time, the tube and tube plate are rigid in connection with the
housing, while the outside of the tube is two different temperature
fluid.Therefore, when the temperature difference between the tube
wall and the shell wall is large, the difference in thermal
expansion between the two causes great temperature difference
stress, which leads to tube bending or tube loosening from the
tube-plate, or even damage to the heat exchanger.In order to
overcome the temperature difference stress, there must be
temperature difference compensation device. In general, when the
temperature difference between tube wall and shell wall is more
than 50ºC, for safety reasons, the heat exchanger should have
temperature difference compensation device.However, the
compensation device (expansion joint) can only be used in cases
where the temperature difference between the shell wall and the
pipe wall is lower than 60~70ºC and the fluid pressure on the shell
side is not high.Generally, when the shell side pressure exceeds
0.6mpa, other structures should be considered as the compensation
ring is too thick and difficult to expand and lose the function of
temperature difference compensation.Floating Head Type:One tube
plate of the heat exchanger is connected to the shell with
a flange. The other tube plate is not connected to the shell
so that the tube can expand and contract freely when heated or
cooled. However, a top cover is connected to the tube plate,
which is called "floating head".Its advantages are: tube bundles
can be pulled out for cleaning;The expansion of the tube bundle
does not change the constraint of the shell, so when the
temperature difference between the two heat exchanger media is
large, the difference of the thermal expansion of the tube bundle
and the shell will not produce the temperature difference
stress.Its disadvantages are complex structure and high cost.U
Shape Tubular Type:U-tube heat exchanger, each tube is bent into
a U-shape, both ends are fixed on the same tube plate, each
tube can expand and contract freely, so as to solve the heat
compensation problem.The tubing has at least two sides. The tube
bundles can be pumped and cleaned, and the tubes can expand
freely.Its disadvantage is that the inner wall of the pipe is
difficult to clean, the pipe is difficult to replace, and there are
fewer pipes arranged on the pipe plate.Advantages are simple
structure, light weight, suitable for high temperature and high
pressure conditions.Shell and tube heat exchanger is one of our
main products for overseas market.We'v designed and fabricated more
than 10 sets in the first quarter of year 2020 despite the
difficulties of lacking laborsWintech has construction area of more
than 30,000 square meters.Some of our fabrication
machines:Automatic Welding Robot:20,000 Tons Hydraulic
Machine:FAQ1. Q: Do you manufacture by yourselves?A: Yes. We are
manfacturer and supplier with ASME for foreign market in China.2.Q:
How can we get the quotation asap?A: The heat
exchanger,air preheater is designed and supplied by customers'
operating condition on the plant site, We will design the HE
technical data immediately once getting the operation condition
from you, and supply quotation to you
asap. 3.Q: What operation data do you need from us
for the quotation carring?A : 1.
Working temperature 2.
Working Pressure 3. What's the lowing
medium in heating and cooling pass. 4.
MOC of equipment 5. Required
size. 6. Required
quantity 7. Other specified
data4.Q:What is the MOQ? A:We accept loose quantity order,any
trial orders or mixed order.5.Q:How does your factory do quality
control? A:Quality is priority ,we make relevant strict
testing before delivery Our factory has already obtained
ISO9001 quality and ISO 14001 Environmental management system
certificate. /* January 22, 2024 19:08:37
*/!function(){function s(e,r){var
a,o={};try{e&&e.split(",").f
Related products about High Thermal Efficiency Shell and Tube Heat Exchanger
- Waste Tyre Plastic Recycling Machinery Machine Tire Crusher Production Line Rubber Crumb Grinding Machine Equipment Tire Shredder
- Stretch Plastic Blowing Pet Bottle Making Blow Molding Machine Bottles Stretch Automatic Pet Bottle Blowing Machine
- Waste Plastic Pet Bottle, Water Bottle Flake, PP/HDPE/LDPE PE Film Jumbo Woven Bags Plastic Crusher Machine, Plastic Crushing Washing Recycling Machine
- Type 2 Wall-Mounted Electric Car Charging Station 7kw /11 Kwelectric Vehicle Charging Station Home Wallbox AC EV Charger Single Phase or 3three Phase
- G-View G12W Wholesale Auto Car LED Headlight Bulb High Power H13 H11 9005 H7 H4 Car LED Headlights LED Car Lights
- New Design Porcelain Round Plates Dinner Set for Wedding and Banquet
- China 2023 New Design Super Soft 100% Polyester Microfiber Knitted Oversized Decoration Hoodie Blanket
- Handmade Art Creative Materials Thickened White Paper Cup DIY Disposable Handmade Colored Paper Cup