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China Stainless Steel Shell and Tube Heat Exchanger Factory - Reliable Suppliers for Efficient Heat Transfer Solutions
Description
A shell and tube heat exchanger consists of components such as a shell, heat transfer tube bundle, tube plate, baffle plate (baffle), and tube box. The shell is mostly cylindrical, with a bundle of pipes installed inside, and the two ends of the bundle are fixed on the tube plate.
There are two types of fluids for heat exchange: cold and hot. One flows inside the tube and is called the tube side fluid; Another type of flow outside the tube is called shell side fluid. To improve the heat transfer coefficient of the fluid outside the pipe, several baffles are usually installed inside the shell. Baffles can increase the fluid velocity on the shell side, forcing the fluid to pass through the tube bundle multiple times according to the specified path, and enhancing the degree of fluid turbulence.
The heat exchange tubes can be arranged in equilateral triangles or squares on the tube plate. The equilateral triangle arrangement is relatively compact, with a high degree of turbulence in the fluid outside the pipe and a large heat transfer coefficient; A square arrangement makes cleaning outside the pipe convenient and suitable for fluids that are prone to scaling.
Main Control Parameters: Heating area, hot water flow rate, heat exchange capacity, and heat medium parameters.
Each time a fluid passes through a tube bundle, it is called a tube pass; Each pass through the shell is called a shell pass. The simplest single shell and single tube heat exchanger is abbreviated as Type 1-1. To improve velocity, baffles can divide pipes into groups, creating multi-tube passes. Similarly, longitudinal baffles inside the shell create multiple shell passes. Multi-tube and multi-shell processes can be used in conjunction.
Key Features
1Efficient and energy-saving, heat transfer coefficient of 6000-8000W/m2.0C.
2Made of all stainless steel, with a long service life of over 20 years.
3Changing laminar flow to turbulence improves efficiency and reduces resistance.
4Fast exchange speed, high temperature resistance (400 ℃), and high pressure (2.5Mpa).
5Compact structure, small footprint, light weight, and convenient installation.
6Flexible design, complete specifications, strong practicality and targeting.
7Suitable for large ranges of pressure, temperature, and various media.
8Low maintenance cost, easy operation, and long cleaning cycles.
9Nano thermal film technology significantly increases the heat transfer coefficient.
10Widely used in thermal power, petrochemical, food, medicine, and electronics.
11Copper tubes with rolled fins provide high conductivity and large surface area.
12Adjustable guide plates meet high flow rates and pulsation frequency needs.
13Ideal for heat exchange of low viscosity and cleaner oils on the shell side.
Specifications
| DN | Tube side | Number of tubes | Heat exchange area (Nominal/calculated) | Pipeline channel (Under 0.5m/sec) | Nominal pressure (Mpa) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Length of tube (m) | φ25×2.5 / φ25×2 | |||||||||
| 1500 | 2000 | 3000 | 4000 | 6000 | m² | m³/hr | ||||
| 159 | 1 | 14 | 1.5/1.62 | 22.17 | 33.27 | - | - | 0.0044/0.0049 | 7.92/8.82 | 0.25 |
| 219 | 1 | 26 | 3/3.00 | 4/4.02 | 6/6.06 | 8/8.1 | - | 0.0082/0.0090 | 14.76/16.20 | 0.6 |
| - | 2 | 26 | 3/3.00 | 4/4.02 | 6/6.06 | 8/8.81 | - | 0.0041/0.0045 | 7.38/8.01 | 1.0 |
| 273 | 1 | 44 | 5/5.08 | 7/5.18 | 10/10.26 | 14/13.72 | 21/20.63 | 0.0138/0.0152 | 24.84/27.36 | 1.6 |
| - | 2 | 40 | 5/4.62 | 6/6.19 | 9/9.33 | 12/12.47 | 19/18.76 | 0.0063/0.0069 | 11.24/12.42 | 2.5 |
| 325 | 1 | 60 | 7/6.93 | 9/9.28 | 14/14.00 | 19/18.71 | 28/28.13 | 0.0188/0.0208 | 33.84/37.44 | 0.6 |
| - | 2 | 56 | 6/6.47 | 9/8.66 | 13/13.05 | 17/17.46 | 36/26.26 | 0.0088/0.0097 | 15.84/17.46 | 1.0 |
| 400 | 1 | 119 | 14/13.47 | 18/18.41 | 28/27.76 | 37/37.10 | 55/55.8 | 0.0374/0.0412 | 67.32/74.16 | 1.6 |
| - | 2 | 110 | 13/12.70 | 17/17.02 | 26/25.66 | 34/34.20 | 50/51.58 | 0.0173/0.0190 | 31.14/34.20 | 2.5 |
| 500 | 1 | 185 | - | - | 45/4.15 | 55/57.68 | 85/86.74 | 0.0581/0.0641 | 104.58/115.38 | - |
| - | 2 | 180 | - | - | 40/41.99 | 55/57.68 | 85/86.74 | 0.0283/0.0312 | 50.94/56.16 | - |
| 600 | 1 | 269 | - | - | 60/62.7 | 85/83.88 | 125/126.13 | 0.0845/0.0932 | 152.10/167.76 | - |
| 700 | 1 | 379 | - | - | 90/88.41 | 120/118.17 | 175/177.71 | 0.0091/0.1313 | 214.38/236.34 | - |
| 800 | 1 | 511 | - | - | 120/119.20 | 160/159.16 | 240/239.60 | 0.1605/0.1770 | 288.90/318.60 | - |
| 900 | 1 | 649 | - | - | 150/151.39 | 200/202.36 | 305/304.3 | 0.2036/0.2248 | 367.02/404.46 | - |
| 1000 | 1 | 805 | - | - | 185/187.78 | 250/251.00 | 375/377.45 | 0.2529/0.2788 | 455.22/501.74 | - |
Frequently Asked Questions
What are the main components of a shell and tube heat exchanger?
It primarily consists of a cylindrical shell, a heat transfer tube bundle, tube plates, baffle plates (to increase turbulence), and a tube box.
How does the choice of tube arrangement affect performance?
Equilateral triangle arrangements are compact and offer higher heat transfer coefficients, while square arrangements allow for easier external cleaning, making them better for scaling-prone fluids.
What is the difference between tube side and shell side fluid?
Tube side fluid flows inside the pipes, while shell side fluid flows in the space between the outer pipe walls and the shell interior.
What are the typical operating limits for these exchangers?
These units are highly durable, capable of resisting temperatures up to 400 ℃ and pressures up to 2.5Mpa.
Why are baffles used inside the shell?
Baffles increase fluid velocity and force the shell-side fluid to cross the tube bundle multiple times, which enhances turbulence and improves the heat transfer coefficient.
What industries commonly use shell and tube heat exchangers?
They are widely used in petrochemical industry, thermal power plants, urban centralized heating, food and medicine production, and energy electronics.