Shell tube cooler heat exchanger , marine heat exchanger

Main Products

Customer Feedback

Shell tube cooler heat exchanger

Shell and tube heat exchangers consist of a series of tubes. One set of these tubes contains the fluid that must be either heated or cooled. The second fluid runs over the tubes that are being heated or cooled so that it can either provide the heat or absorb the heat required. A set of tubes is called the tube bundle and can be made up of several types of tubes: plain, longitudinally finned, etc. Shell and tube heat exchangers are typically used for high-pressure applications (with pressures greater than 30 bar and temperatures greater than 260°C). This is because the shell and tube heat exchangers are robust due to their shape.

There are several thermal design features that are to be taken into account when designing the tubes in the shell and tube heat exchangers. These include:

1. Tube diameter: Using a small tube diameter makes the heat exchanger both economical and compact. However, it is more likely for the heat exchanger to foul up faster and the small size makes mechanical cleaning of the fouling difficult. To prevail over the fouling and cleaning problems, larger tube diameters can be used. Thus to determine the tube diameter, the available space, cost and the fouling nature of the fluids must be considered.

2. Tube thickness: The thickness of the wall of the tubes is usually determined to ensure:

   a. There is enough room for corrosion

   b. That flow-induced vibration has resistance

   c. Axial strength

   d. Availability of spare parts

   e. Hoop strength (to withstand internal tube pressure)

   f. Buckling strength (to withstand overpressure in the shell)

3. Tube length: heat exchangers are usually cheaper when they have a smaller shell diameter and a long tube length. Thus, typically there is an aim to make the heat exchanger as long as physically possible whilst not exceeding production capabilities. However, there are many limitations for this, including the space available at the site where it is going to be used and the need to ensure that there are tubes available in lengths that are twice the required length (so that the tubes can be withdrawn and replaced). Also, it has to be remembered that long, thin tubes are difficult to take out and replace.

4. Tube pitch: when designing the tubes, it is practical to ensure that the tube pitch (i.e., the centre-centre distance of adjoining tubes) is not less than 1.25 times the tubes' outside diameter. A larger tube pitch leads to a larger overall shell diameter which leads to a more expensive heat exchanger.

5. Tube corrugation: this type of tubes, mainly used for the inner tubes, increases the turbulence of the fluids and the effect is very important in the heat transfer giving a better performance.

6. Tube Layout: refers to how tubes are positioned within the shell. There are four main types of tube layout, which are, triangular (30°), rotated triangular (60°), square (90°) and rotated square (45°). The triangular patterns are employed to give greater heat transfer as they force the fluid to flow in a more turbulent fashion around the piping. Square patterns are employed where high fouling is experienced and cleaning is more regular.

7. Baffle Design: baffles are used in shell and tube heat exchangers to direct fluid across the tube bundle. They run perpendicularly to the shell and hold the bundle, preventing the tubes from sagging over a long length. They can also prevent the tubes from vibrating. The most common type of baffle is the segmental baffle. The semicircular segmental baffles are oriented at 180 degrees to the adjacent baffles forcing the fluid to flow upward and downwards between the tube bundle. Baffle spacing is of large thermodynamic concern when designing shell and tube heat exchangers. Baffles must be spaced with consideration for the conversion of pressure drop and heat transfer. For thermo economic optimization it is suggested that the baffles be spaced no closer than 20% of the shell’s inner diameter. Having baffles spaced too closely causes a greater pressure drop because of flow redirection. Consequently having the baffles spaced too far apart means that there may be cooler spots in the corners between baffles. It is also important to ensure the baffles are spaced close enough that the tubes do not sag. The other main type of baffle is the disc and donut baffle which consists of two concentric baffles, the outer wider baffle looks like a donut, whilst the inner baffle is shaped as a disk. This type of baffle forces the fluid to pass around each side of the disk then through the donut baffle generating a different type of fluid flow.

WH Factory is one of the largest Shell And Tube Heat Exchanger manufacturer in China ,who offer high quality heat exchanger with TA1 Titanium ,TA2 Titanium ,304 SS ,316 L ,copper and other materials, all products can be customized by request . 

1). Professional manufacturer, ISO9001-2008

2). More than 6 years’ experiences of manufacturing.

3).Customized solutions and products

4).OEM/Small order accepted

5).Lead time 30 days

6).Tooling in house

7).High quality control

8).Competitive price

Our organisation is contributing huge patrons from the markets of China and other abroad countries such as Singapore, Middle-East, Africa, Malaysia, Europe, Denmark, America, Australia, UK, etc. Apart from these countries, we are also looking forward to entertain our more clients, by offering them our reliable products.

1:Before Service: All the process of Technical Production deportment and Strict Quality Control System. We also can provide the sample for your test quality.

2:Middle Service: Any question, pls feel free to tell us we will solve any doubt. 

3:After Service: All the products problems, pls call us and E- mail us at any time, we will reply to you at the shortest time.

Payment Terms  

Type of Payment: T/T100% payment in advanced, Paypal, Escrow, Western Union, L/C,etc.

Remark: If you have any question in payment, pls show us so that we will discuss.

Package:Standard export packing .

Shipping Terms:

1.For the sample order: we also use International Express freight: Such as: DHL, TNT, EMS, UPS and so on.

2.If your quantity is large, we will consider the Air or Sea Transport, all the detail terms we will discuss in the Contract.

Q1.Are you factory?

A.Yes,we are one of the largest corrosion resistant heat exchanger manufactory in China

Q2.May i get your product catalogue?

A.Sure, you are welcome to download the latest catalogue at our web /en,E-book , or contact us directly.

Q3.Are there any discount for the heat exchangers?

A.Yes. Bigger quantity will enjoy lower discount!

Q4.What is the MOQ?

A.We accept loose quantity order,mixed order,any trial orders.

Q5.What information needed if I want a quotation?

A .Please advise us the Type of heat exchangers, Material , Heat Exchanger Capacity, Water Flow, Water Temperature in and out ,Refrigrant Freon Type, Quantity, or any requirements in size.

Q6.Can we visit your company/factory before place the order?

A.Sure.Welcome anytime.

Q7.What's your contact way ?

A.

Att:Ms Joanna Zhang

QQ:1747660290

Wechat:qq1592268859

Email:wh(at)

Cell:86-15356255661

Tel:86-577-86198864

Skype:wzwuhuan

Shell And Tube Heat Exchanger