Tube and Shell Heat Exchanger

A shell and tube heat exchanger is a class of heat exchanger designs. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed of several types of tubes: plain, longitudinally finned, etc.
There can be many variations on the shell and tube design. Typically, the ends of each tube are connected to plenums (sometimes called water boxes) through holes in tubesheets. The tubes may be straight or bent in the shape of a U, called U-tubes.
n nuclear power plants called pressurized water reactors, large heat exchangers called steam generators are two-phase, shell-and-tube heat exchangers which typically have U-tubes. They are used to boil water recycled from a surface condenser into steam to drive a turbine to produce power. Most shell-and-tube heat exchangers are either 1, 2, or 4 pass designs on the tube side. This refers to the number of times the fluid in the tubes passes through the fluid in the shell. In a single pass heat exchanger, the fluid goes in one end of each tube and out the other.
Surface condensers in power plants are often 1-pass straight-tube heat exchangers (see Surface condenser for diagram). Two and four pass designs are common because the fluid can enter and exit on the same side. This makes construction much simpler.
Advantages of Tube and Shell heat exchanger :
1.High thermal conductivity
<1>Much heigher thermal conductivity than other corrosion material.
<2>Less space and smaller size.
<3>lower cost.
<4>can work in high tempreture condition thangraphite
2.Outstanding corrosion resistance.
<1>High performance of corrosion, oxidation and erosion resistance
<2>Endure high concentration of sulfuric acid, nitric acid, phosphoric acid, mixed acid, alkali, and oxidant
<3>Long working life
Pre-sales Service:
Customization:
We canspeciallycustomize productsif you tell us any special requests,suchas spare parts,cylindricaltank, material, output,pump...
After-sales Service:
1.One-year free warranty and life-long maintenance service
2. Equipmentoperation and maintenance vedio guide for thecustomers
3.Helptodo worker training
4.On-line support every day
FAQ:
1.Q:Are you a factory or trading company?
A:We are one of the largestheat exchangermanufactory in China
2.Q:Can we visit your factory before placing orders?
A:Sure,warmly welcome toour factory!
3.Q:What's theinfoneeded if Isend one inquiry?
A:Plstellustheworkingconditions,mediums,temperature,pressure, equipment's material,size,quantity,and other special requests
4.Q:What isthe MOQ?
A:We accept loose quantity order,any trial ordersormixed order
5.Q:How does your factorydoquality control?
A:Quality is priority,we make relevant strict testing before delivery
Our factory hasalready obtainedISO9001qualityand ISO 14001
Environmental management system certificate