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Stainless Steel Shell And Tube Heat Exchanger

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Stainless Steel Tubular heater With Simple Structure

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Stainless Steel Tubular Heater Factory in China - Reliable Suppliers for Efficient Heat Exchangers

The tubular heat exchanger, a vital component in thermal management, is composed of several key elements, including a robust shell, an efficient heat transfer tube bundle, a stable tube plate, essential baffle plates, and a functional tube box. Typically featuring a cylindrical design, the shell houses a series of pipes that facilitate the transfer of thermal energy. The ends of the tube bundle are securely fixed onto the tube plate, ensuring optimal performance. This heat exchanger operates with two distinct types of fluids, allowing for effective cold and hot heat exchange. As a leading manufacturer in China, our factory specializes in producing high-quality tubular heat exchangers, making us a trusted supplier for various industries seeking reliable thermal solutions

Product Detail

Description

Tubular 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.

Key Parameters:

The main control parameters of Tubular 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.

Characteristics

Efficient & Energy-Saving: The heat transfer coefficient of this heat exchanger is 6000-8000W/m².°C.

Durable Construction: Made of all stainless steel, with a long service life of over 20 years.

Enhanced Flow: Changing laminar flow to turbulence improves heat transfer efficiency and reduces thermal resistance.

High Resistance: Fast heat exchange speed, high temperature resistance (400 ℃), and high pressure resistance (2.5Mpa).

Compact Design: Small footprint, light weight, convenient installation, and saving on civil engineering investment.

Flexible & Practical: Flexible design, complete specifications, strong practicality, saving funds.

Wide Application: Suitable for a large range of pressure and temperature, and heat exchange in various media.

Low Maintenance: Low maintenance cost, easy operation, long cleaning cycle, and convenient cleaning.

Nano Technology: The use of nano thermal film technology significantly increases the heat transfer coefficient.

Broad Fields: Used in thermal power, factories, petrochemical, urban heating, food & medicine, electronics, etc.

High Conductivity: Heat transfer tube adopts copper tubes with rolled fins on the outer surface for large area.

Sturdy Guide Plate: Guides shell side fluid in a zigzag shape. Adjustable spacing to meet high flow rate needs.

Oil Heat Exchange: When the shell side fluid is oil, it is suitable for low viscosity and cleaner oil.

Specifications

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 Tubular Heat Exchanger?

A tubular heat exchanger consists of a shell, a heat transfer tube bundle, a tube plate, baffle plates (baffles), and a tube box. The shell is cylindrical with the tube bundle fixed inside at both ends on the tube plate.

What is the difference between equilateral triangle and square tube arrangements?

Equilateral triangle arrangements are more compact, providing a higher degree of turbulence and a larger heat transfer coefficient. Square arrangements allow for easier cleaning of the outer surfaces of the pipes, making them ideal for fluids prone to scaling.

What are the primary control parameters of a Tubular Heat Exchanger?

The main control parameters include the heating area, hot water flow rate, heat exchange capacity, and heat medium parameters.

What are the temperature and pressure limits of this heat exchanger?

This equipment is designed for high performance, featuring temperature resistance up to 400 ℃ and pressure resistance up to 2.5Mpa.

Which industries commonly use these tubular heat exchangers?

They are widely used in thermal power, factories and mines, the petrochemical industry, urban centralized heating, food and medicine, energy electronics, machinery, and light industry.

How does the guide plate improve fluid dynamics on the shell side?

The guide plate forces the shell side fluid to flow continuously in a zigzag pattern inside the heat exchanger. The spacing can be adjusted to optimize the flow rate and meet the heat transfer requirements of high flow rates and high pulsation frequencies.