Wuxi Suyang Chemical Equipment Co., Ltd. You Professional Shell Tube Heat Exchanger Manufacturer!
Wuxi Suyang Chemical Equipment Co., Ltd. specializes in chemical equipment, vessel design, manufacture, sales and service, And is the domestic formaldehyde, paraformaldehyde, dimethoxymethane and other downstream derivatives formaldehyde EPC provider. Company with strong technical force, complete production testing equipment,Can provide all kinds of chemical industry at home and abroad customers a full range of design, manufacture, installation, commissioning, training of train services,Relies on high standards, high-quality products, reasonable prices and high quality service to become your professional supplier and provide professional protection.
Rich Product Variety
Products include heat exchanger (tube type, spiral plate type), the reactor, vacuum rake dryer and other types of chemical industry required containers,At the same time also provide ASIME and other international standards products.
Wide Range of Product Uses
Our products are widely used in homes, public places, industries and defense fields.
Quality Guaranteed
Company with strong technical force, complete production testing equipment,Can provide all kinds of chemical industry at home and abroad customers a full range of design, manufacture, installation, commissioning, training of train services,Relies on high standards, high-quality products, reasonable prices and high quality service to become your professional supplier and provide professional protection. The company has three types of pressure vessel manufacturing qualification and passed ISO9001: 2008 quality certification system.
Leading Service
We have many years of industry experience and a complete production management, quality supervision, sales service operation system. Whether you want to buyheat exchanger , or vacuum rake dryer just send your requirements by email and we can customize the product for you.
Related Product Introduction
U-tube heat exchanger 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.
Volumetric heat exchanger introduction In the heat exchanger series, the volume heat exchanger has a unique heat transfer element, which has many advantages that other types of heat exchangers do not have, and is therefore favored by users.
Volume heat exchanger introduction High exchange efficiency Volume Heat Exchanger, The series of heat exchanger bearing selection according to the standard, three bearings, a fixed bearing, two for the activities of bearing. The anchor of the movable bearing is made of double nuts.
Displacement heat exchanger introduction Floating coil radiator used in the form of cantilever floating coil, the steam heating hot water in the process, the upper and the lower of the coil make the water flow around the coil to destroy the laminar heat transfer.
Volume Type Floating Coil Heat Exchanger
Volume type floating coil heat exchanger applies to general industrial and hot water supply system in civil building, heat medium for steam or hot water high temperature softening, tube side working pressure ≤ 0.4Mpa heat exchanger, shell side working pressure ≤ 0.64Mpa, outlet water temperature is not higher than 75 ℃.
Shell tube condenser introduction Bundle of high-performance copper, steel, stainless steel tubes Steel or stainless steel tube sheet and body with receiver for subcooled liquid, welding or brazing coupling and tapping for safety device.
A shell and tube heat exchanger cooler is a class of heat exchanger design. It is the most common type of heat exchanger for many 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 by several types of tubes: plain, longitudinally finned, etc.
Tube in tube condenser is the feature product in our company, of which the structure design, manufacturing and application are unique. Spiral tube type, arc tube and baffle plate type tubular exchanger are independent R&D products in the company, featuring advanced technology in the world, widely used in industries particularly in petrifaction, electricity and metallurgy.
Shell And Tube Type Heat Exchanger
It is an efficient and energy-saving equipment. Due to its strong structure, high elasticity and strong adaptability, it has made a lot of improvements in structure, process and materials in recent years, making its technical performance more reasonable and advanced.
What is Shell Tube Heat Exchanger
Shell tube heat exchanger is currently the most widely used heat exchanger in chemical production. It is mainly composed of shell, tube sheet, heat exchange tube, head, baffle, etc. The required materials can be divided into ordinary Made of carbon steel, copper, stainless steel.
Advantages of Shell Tube Heat Exchanger
Structural advantages
Structural features are divided into fixed tube plate type, floating head type, U-type heat exchanger according to the form. According to the structure, it is divided into single-pass, double-tube-pass, and multi-tube-pass. According to the material, it can be divided into carbon steel, stainless steel, stainless steel and carbon steel composite. The heat transfer area can be customized according to customer conditions.
Simple design
The advantages of a shell and tube heat exchanger include its simple design, robust characteristics, and relatively low purchase and maintenance costs. This type of heat exchanger is widely used in various cooling applications due to these benefits.
Wide range of uses
It versatile and suitable for a range of cooling needs. It is commonly used to cool hydraulic fluid and oil in engines, transmissions, and hydraulic power packs. Additionally, with the right choice of materials, these heat exchangers can also be used to cool or heat other mediums such as swimming pool water or charge air.
Easy to maintain
One of the significant advantages of shell-and-tube heat exchangers is their ease of service, especially models with a floating tube bundle design where the tube plates are not welded to the outer shell. This makes maintenance and cleaning more accessible, contributing to efficient operation and extended lifespan. Furthermore, the cylindrical design of the housing provides excellent resistance to pressure, making shell-and-tube heat exchangers suitable for a wide range of pressure applications in various industries.
Parts of Shell Tube Heat Exchanger
Shell
The shell is the heat exchanger's outermost part which holds the tube bundle. It is commonly a cylindrical container constructed from steel or other appropriate substances.
Tubes or Tube Bundle
A collection of parallel tubes running along the length of the shell makes up the tube bundle. Depending on the specific use, the tubes can be composed of different materials, such as stainless steel, copper, or titanium. The diameter and thickness of the tubes are also important design parameters.
Tube Sheets
Tube sheets are sturdy sheets that act as a barrier between the tube bundle and the shell. They are commonly constructed using steel and are fused to the shell to ensure a firm and leak-free closure. The tubes are inserted through holes in the tube sheets and are either expanded or welded in position.
Baffles
Baffles are plates or rods that are placed inside the shell to regulate the movement of fluid around the tube bundle. These can be either longitudinal or transverse in orientation and are intended to enhance the effectiveness of heat transfer.
Inlet and Outlet Nozzles
The inlet and outlet nozzles serve as the entry and exit points for fluids in the heat exchanger. These connections are usually placed at opposite ends of the shell and are attached to the tubes and the shell using flanges or other types of fittings.
Expansion Joints
Expansion joints are flexible connectors that accommodate the tube bundle's thermal expansion and contraction. Usually situated at the inlet and outlet of the heat exchanger, these joints are constructed using metal bellows or other flexible materials.
Support Structures
Support structures hold heat exchangers in position, ensuring a stable foundation. Support structures can be either temporary or permanent and may be made of steel or other materials.
Types of Shell Tube Heat Exchanger
Fixed Tube Sheet Exchanger
In this design, the tube sheet is welded to the shell, resulting in a simple and economical construction. While the tube bores can be cleaned mechanically or chemically, the outside surfaces of the tubes are generally inaccessible except for chemical cleaning. Expansion bellows may be necessary to accommodate large temperature differences between the shell and tube materials, but they can be a source of weakness and failure.
U-Tube Exchangers
In a U-Tube exchanger, the front header types may vary, and the rear header is typically an M-Type. U-tubes allow for unlimited thermal expansion, and the tube bundle can be removed for cleaning. However, internal cleaning of the tubes by mechanical means is difficult, making this type suitable only for applications where the tube side fluids are clean.
Floating Head Exchanger
In this type of exchanger, the tubesheet at the rear header end is not welded to the shell but allowed to move or float. The tubesheet at the front header end is of a larger diameter than the shell and is sealed similarly to the fixed tubesheet design. Thermal expansion can be accommodated, and the tube bundle can be removed for cleaning. The S-Type Rear Head is the most popular choice for the rear header. Floating head exchangers are suitable for high temperatures and pressures but are generally more expensive compared to fixed tubesheet exchangers.
Shell tube heat exchanger works by transferring heat between two fluids, such as liquids or gasses. The fluids are separated by a solid barrier and flow through separate channels. One fluid travels through tubes while the other flows around the tubes in the shell.
While the fluids flow through their channels, the heat is transferred from the hotter fluid to the cooler fluid through the barrier because of temperature differences and the barrier's conductive properties of the solid barrier.
The shell tube design provides a large surface area for heat transfer, making it an efficient method to carry the heat between fluids. Furthermore, the tubes can be removed for cleaning or replacement without affecting the shell, which makes it easy to maintain and clean.
Applications of Shell Tube Heat Exchanger
The industrial use of shell tube heat exchangers, used in the chemical, food, oil and gas and other fields, is widespread. They are commonly employed in various industries for transferring heat between two fluids without direct contact. Some of the key industrial of shell and tube heat exchangers applications include:
Heating and cooling processes in chemical plants
Condensing and evaporating duties in refineries
Heat recovery systems in power generation facilities
HVAC systems in commercial and residential buildings
Refrigeration systems in food processing plants
Thermal management in oil and gas production facilities
How to Clean?
High-pressure water blasting remains a popular choice for cleaning heat exchangers. This method involves using water jets at pressures up to 2500 bar to remove stubborn dirt and debris from tube interiors.Although effective, this technique requires careful handling to ensure safety and minimize water use.
As environmental and safety regulations become stricter, mechanical tube cleaning has gained prominence. This method uses physical tools like brushes and drills to scrub the tubes clean, often accompanied by low-pressure water to flush out debris. Mechanical cleaning is quick and reduces the volume of wastewater produced, aligning with sustainable operation practices.
When mechanical methods are insufficient, particularly with scale build-up that is tough to remove physically, chemical cleaning becomes a necessary choice. Specialized cleaning solutions are circulated through the heat exchanger, dissolving deposits without dismantling the unit. It is a less labor-intensive method that can be highly effective if the correct chemical agents are used.
Ultrasonic cleaning is a modern technique that uses high-frequency sound waves to create cavitation bubbles in the cleaning fluid, which when they collapse, generate forceful jets of water that clean the tube surfaces. This method is especially useful for removing very fine particles and is known for its precision and the ability to reach difficult areas.
For organic contaminants like oils or plastics, thermal cleaning is an effective method. It involves using high temperatures to vaporize or burn off residues within the heat exchanger. This method is typically used in situations where other cleaning methods might not be feasible due to the nature of the contamination.
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Frequently Asked Questions
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