China Stainless Steel Shell and Tube Heat Exchanger Suppliers - High Quality Factory Products
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.
The main control parameters of shell and tube heat exchangers are 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 diagram shows the simplest single shell and single tube heat exchanger, abbreviated as Type 1-1 heat exchanger. To improve the fluid velocity inside the pipe, baffles can be installed inside the two ends of the pipe box to divide all pipes into several groups. In this way, the fluid only passes through a portion of the tube each time, so it travels back and forth multiple times within the tube bundle, which is called a multi tube pass. Similarly, to increase the flow velocity outside the pipe, longitudinal baffles can also be installed inside the shell to force the fluid to pass through the shell space multiple times, known as multiple shell passes. Multi tube and multi shell processes can be used in conjunction.
1. Efficient & Energy-saving: The heat transfer coefficient of this heat exchanger is 6000-8000W/m2.0C.
2. Premium Material: Made of all stainless steel, with a long service life of over 20 years.
3. Enhanced Flow: Changing laminar flow to turbulence improves heat transfer efficiency and reduces thermal resistance.
4. High Resistance: Fast heat exchange speed, high temperature resistance (400 ℃), and high pressure resistance (2.5Mpa).
5. Compact Structure: Small footprint, light weight, convenient installation, and saving on civil engineering investment.
6. Flexible Design: Complete specifications, strong practicality and targeting, saving funds.
7. Wide Application: Suitable for a large range of pressure and temperature, as well as heat exchange in various media.
8. Low Maintenance: Easy operation, low maintenance cost, long cleaning cycle, and convenient cleaning.
9. Nano Thermal Film: The use of nano thermal film technology significantly increases the heat transfer coefficient.
10. Broad Fields: Widely used in thermal power, factories, mines, petrochemicals, centralized heating, food, medicine, and electronics.
11. Rolled Fin Tubes: Copper tubes with rolled fins on the outer surface provide high thermal conductivity and a large area.
12. Adjustable Flow: Baffle spacing adjusts for optimal flow rate, meeting high flow and pulsation needs.
13. Oil Heat Exchange: Suitable for heat exchange of low viscosity and cleaner oil on the shell side.
Specification
| DN | Tube side | Number of tubes | heat exchange area Nominal/calculated | Cross-sectional area of pipeline channel and flow velocity of pipeline channel Under 0.5m/sec m/hr | nominal pressure | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Length of tube（m） | φ25×2.5 | |||||||||
| 1500 | 2000 | 3000 | 4000 | 6000 | φ25×2 | |||||
| 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 | |||
| 2 | 266 | 60/32.05 | 80/82.94 | 125/14.72 | 0.0418/0.0461 | 75.24/83.98 | ||||
| 700 | 1 | 379 | 90/88.41 | 120/118.17 | 175/177.71 | 0.0091/0.1313 | 214.38/236.34 | |||
| 2 | 358 | 85/83.51 | 110/111.62 | 165/167.85 | 0.0562/0.0620 | 101.16/111.60 | ||||
| 800 | 1 | 511 | 120/119.20 | 160/159.16 | 240/239.60 | 0.1605/0.1770 | 288.90/318.60 | |||
| 2 | 488 | 115/113.83 | 150/152.16 | 230/228.81 | 0.0767/0.0845 | 138.06/152.10 | ||||
| 900 | 1 | 649 | 150/151.39 | 200/202.36 | 305/304.3 | 0.2036/0.2248 | 367.02/404.46 | |||
| 2 | 630 | 145/146.96 | 195/196.44 | 295/295.40 | 0.0990/0.1091 | 178.20/196.38 | ||||
| 1000 | 1 | 805 | 185/187.78 | 250/251.00 | 375/377.45 | 0.2529/0.2788 | 455.22/501.74 | |||
| 2 | 792 | 185/184.75 | 245/246.95 | 370/371.36 | 0.1244/0.1374 | 223.92/246.96 | ||||
Frequently Asked Questions
What are the main components of a shell and tube heat exchanger?
It consists of key components including a shell, heat transfer tube bundle, tube plate, baffle plate (baffle), and tube box. One fluid flows inside the tubes (tube side) while the other flows outside the tubes (shell side) to facilitate heat exchange.
How does tube arrangement affect heat exchanger performance?
Tubes can be arranged in equilateral triangles or squares. The equilateral triangle arrangement is compact, generating higher fluid turbulence and a larger heat transfer coefficient. A square arrangement is easier to clean externally, making it ideal for fluids prone to scaling.
Why are baffles installed inside the shell?
Baffles are installed to increase fluid velocity on the shell side. They force the fluid to cross the tube bundle multiple times along a specified path, enhancing turbulence and improving the overall heat transfer coefficient.
What are the maximum temperature and pressure ratings?
This shell and tube heat exchanger is designed for high-temperature and high-pressure conditions, withstanding temperatures up to 400 ℃ and nominal pressures up to 2.5Mpa.
What makes this heat exchanger highly efficient?
Efficiency is driven by a high heat transfer coefficient of 6000-8000W/m2.0C, the use of copper tubes with rolled fins for expanded surface area, and advanced nano thermal film technology.
What industrial applications is this equipment suitable for?
It is widely used across thermal power, factories, mines, petrochemicals, centralized urban heating, food processing, pharmaceuticals, energy electronics, and machinery industries.