At the beginning of 2020, the company added a production base of 20,000 square meters, and further increased the production capacity. In the same year, it undertook a single project of Chongqing Boshi Group with a sum of over 100 million yuan.
In 2021, the company's sales revenue exceeded 280 million yuan. Obtain the manufacturing license of the fixed pressure vessel (medium and low) pressure vessel.
In 2022, the market share of alumina evaporator group is more than 70%, and the sales volume of pressure vessels exceeds 100 million yuan.
In 2023, the new production base will be officially opened on October 1, continuing to expand production capacity and making a more reasonable industrial layout.
Why choose us?
Our product
Heat exchanger, separator, reactor, storage tank, tower, cryogenic equipment, filters, chemical and alumina evaporatorheat exchanger, separator, reactor, storage tank, tower, cryogenic equipment, filters, chemical and alumina evaporator.
Our certificate
Now has fixed pressure vessel (A2) special equipment production license, company passed ISO: 9001 standard quality system certification, ISO14001 environmental management system certification, ISO45001. Industry health and safety management system certification, with 4 utility model patent certificates.
Production equipment
There 26 cranes,62 welding machines,12 welding ovens,90 self-adjusting roller frames,8 plate bending rolls,70 sets of finishing equipment,3 forklifts,2 fixed screw air compressors,2 rooms for surface treatment,2 portable heat treatment machines,2 plotting devices.
Production market
Since its establishment, our company has provided services for 110 enterprises, and the sales revenue in 2023 exceeds 300 million yuan. At the same time, the company is also actively exploring overseas markets, we have reached an in-depth cooperation with the French company Fives FCB, and the export amount reached 10 million US dollars last year.
A steam heat exchanger is a device used to transfer heat by means of a temperature difference between steam and another medium. Such heat exchangers are usually made of metal materials and can withstand high temperature and high pressure environments.
Stainless Steel Heat Exchanger Tubes
Stainless steel heat exchanger tubes are crucial components in various industrial and HVAC (heating, ventilation, and air conditioning) systems. They are designed to facilitate the transfer of heat between two fluids without mixing them. Stainless steel is an ideal material for these tubes due to its unique properties.
Stainless Steel Heat Exchanger
Stainless steel heat exchanger is an efficient heat exchange equipment widely used in modern engineering applications. The following is a detailed introduction to it.
Tube bundle heat exchanger, also known as tube heat exchanger, is a heat exchange equipment widely used in chemical, petroleum, pharmaceutical, energy and other industrial fields. It transfers heat through the fluid in the pipeline and the external medium to achieve temperature regulation and energy conversion.
Double Tubesheet Heat Exchanger
Double-tubesheet heat exchanger is a kind of high efficiency heat exchange equipment with unique structure and exquisite design, which is widely used in industry, construction and electric power fields.
Thin-Wall Titanium Bellows Heat Exchanger
Thin-wall titanium bellows heat exchanger is an efficient and corrosion-resistant heat exchange equipment, which is made of titanium alloy material and has excellent physical and chemical properties. The main feature of this heat exchanger is its unique bellows design, which not only enhances the degree of fluid turbulence, but also increases the heat exchange area, thus significantly improving the heat exchange efficiency.
Threaded tube heat exchanger is a kind of efficient heat exchange equipment, which uses the special structure of threaded tube to increase the degree of fluid turbulence, so as to improve the heat exchange efficiency. This type of heat exchanger usually consists of a series of tubes with spiral grooves, which make the fluid flow in the tube to produce rotation, increase the contact area and mixing degree between the fluid and the tube wall, and help heat transfer.
Zhangjiagang Longevity Industrial Equipment Manufacturing Co., Ltd. is located in Yangshe Town, Zhangjiagang City, which is one of the top 100 counties in China and a key economic town in the Yangtze River Delta.
Stainless Steel Thin Wall Bellows Heat Exchanger
Stainless steel thin-wall bellows heat exchanger is a kind of high efficiency heat exchange equipment, has excellent heat transfer performance, anti-corrosion and descaling ability, long life and good economy.
What is Shell And Tube Heat Exchanger
A shell-and-tube heat exchanger is a class of heat exchanger designs. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure 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 of several types of tubes: plain, longitudinally finned, etc.
Benefits of Shell And Tube Heat Exchanger
Shell and tube heat exchangers can operate at higher temperatures.
Shell and tube designs are very effective for large temperature differences, especially when using a u-tube style. The U-tube bundle within the heat exchanger is fixed to only one tube sheet, allowing the tube bundle to expand and contract as a result to thermal differences. Straight tubes can also handle large temperature differences with the use of expansion joints.
Shell and tube heat exchangers can handle higher operating pressures.
Shell and tube heat exchangers are often considered more suitable for higher operating pressures compared to plate and frame heat exchangers for a variety of reasons. First, the shell and tube design inherently provides a robust and sturdy construction that can be built with various-sized tubes and shell thicknesses. Reducing the diameter of the tubes and increasing the thickness of the shell are common options for increasing operating pressures.
Shell and tube heat exchangers are easier to clean and maintain.
In a shell and tube heat exchanger, accessibility of the tubes allows for straightforward maintenance. Rather than dismantling lots of separate plates and their corresponding gaskets, as with a plate and frame design, you simply remove the bonnet(s) to access the tubes. The larger passages in the tubes also facilitate the removal of debris. Various cleaning methods, including mechanical tools such as Clean-in-place (CIP), and chemical solutions, can be employed.
Shell and tube heat exchangers typically offer lower pressure drops.
The larger tube diameter and open design of shell and tube heat exchangers minimizes pressure drop in the system, particularly in high-volume or viscous applications. This applies to both the product side and utility side of your process. This reduced pressure drop can allow the end user to run with smaller pumps, saving energy costs.
Shell and tube heat exchangers are less expensive to maintain.
Shell and tube heat exchangers are often less expensive to maintain than plate and frame heat exchangers due to the difference in design, particularly in the number of gaskets and the impact of operating at higher temperatures.
Shell and tube heat exchangers are highly customizable.
Shell and tube heat exchangers offer a superior level of customization compared to plate and frame heat exchangers, providing engineers with greater flexibility in meeting specific heat transfer requirements. This customization extends to various aspects, including configurations and sizes, where the number and arrangement of tubes, as well as the size of the shell, can be tailored to fit the demands of diverse applications.
U-tube heat exchangers:
U tube heat exchanger is the simplest and most common type of exchange. The fluid flows within it in a single way. That is best suitable for where thermal efficiency is not a crucial factor. This type of exchanger is generally used for HVAC systems and other low pressure applications. And where the pressure also drops is not a crucial factor.
Fixed tube sheet heat exchangers:
Fixed tube heat exchanger is also most commonly used in the chemical and oil and Gas Industries. The tube sheet is used to divide the shell and tube fluid mixing. Tubes fixed in tube sheets through a welding. This is best suited for temperature differences that are not an important factor between two floor fluids.
Floating head heat exchangers
The floating head types of heat exchangers used in oil and gas and petrochemicals Industries where the high temperature and high pressure application are required. Because due to the high temperature the floating head is expanded accordingly and adjusts itself without damaging any other internal parts.
Double tube sheet heat exchangers
This type of heat exchanger is most commonly used in the pharmaceutical industries where the fluid mixing to each other is a very crucial factor. That can impact the process of the plant. In the Double tube heat exchanger there are two seats provided which prevent the mixing of liquid to other liquid and act as a barrier between both.
Multi-pass heat exchangers
The multi pass heat exchanger used for the high heat transfer coefficient but created more pressure drop. This is used for where high heat transfer is required in this type of heat exchange the fluid is rotated or circulates within the exchanger in multiple Times according to its passes.
Application of Shell And Tube Heat Exchanger
Power generation: The power generation industry heavily relies on shell and tube heat exchangers for efficient heat transfer in various processes. They are used in condensers to convert steam back into water for reuse, improving overall plant efficiency. Additionally, these heat exchangers are utilized in feedwater heaters to preheat the water before it enters the boiler, reducing energy consumption and enhancing thermal efficiency.
Oil and gas industry: In the oil and gas sector, shell and tube heat exchangers are employed in crucial applications such as crude oil cooling, gas compression, and natural gas processing. They enable effective heat exchange between different process streams, facilitating the separation and purification of valuable products. The robust construction of these exchangers allows them to handle high pressures and temperature differentials, making them suitable for demanding oil and gas operations.
Chemical processing: Shell and tube heat exchangers find extensive use in chemical processing plants, where precise temperature control and efficient heat transfer are vital. They play a pivotal role in processes such as distillation, evaporation, and condensation. These heat exchangers can handle corrosive fluids and provide optimal heat transfer rates, ensuring the integrity of chemical reactions and improving overall process efficiency.
Food and beverage industry: In the food and beverage industry, shell and tube heat exchangers play a crucial role in processes like pasteurization, sterilization, and food preservation. They enable precise temperature control and efficient heat transfer, ensuring the safety and quality of food products. These exchangers are designed to meet strict sanitary standards, making them suitable for handling edible fluids.
Pharmaceutical and biotechnology: Shell and tube heat exchangers find applications in pharmaceutical and biotechnology industries, where precise temperature control and sterile conditions are paramount. They are used in processes like fermentation, crystallization, and solvent recovery. The ability of these exchangers to handle high temperatures and maintain sterile conditions makes them essential in critical pharmaceutical and biotech processes.
Refrigeration and cold storage: Shell and tube heat exchangers are extensively used in refrigeration systems and cold storage facilities. They play a critical role in transferring heat between the refrigerant and the surrounding environment, enabling efficient cooling and maintaining low temperatures. These heat exchangers contribute to the preservation of perishable goods, such as food and pharmaceuticals, ensuring their quality and extending their shelf life.
Pulp and paper industry: In the pulp and paper industry, shell and tube heat exchangers are employed in various processes, including pulp digestion, evaporation, and drying. They enable efficient heat transfer and temperature control, ensuring optimal conditions for pulp processing and paper production. These heat exchangers play a crucial role in energy recovery from process streams, leading to significant cost savings and reduced environmental impact.
Waste heat recovery: Shell and tube heat exchangers are instrumental in waste heat recovery systems, where they capture and utilize the heat generated as a byproduct of industrial processes. By transferring the waste heat to a different fluid or system, these exchangers can generate additional energy or provide heating for other applications. Waste heat recovery using shell and tube heat exchangers contributes to energy efficiency, reducing the reliance on primary energy sources and minimizing greenhouse gas emissions.
Automotive and aerospace industries: The automotive and aerospace sectors make use of shell and tube heat exchangers in various applications. In automotive cooling systems, these exchangers assist in engine cooling and facilitate the transfer of heat between the engine coolant and the surrounding air. In aerospace applications, shell and tube heat exchangers are utilized in aircraft engine cooling, hydraulic systems, and environmental control systems, ensuring optimal performance and safety.
Components of Shell And Tube Heat Exchanger
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
How to Maintain Shell And Tube Heat Exchanger
High-pressure water blasting
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.
Mechanical tube cleaning
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.
Chemical cleaning
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
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.
Thermal cleaning
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..
The company has a registered capital of RMB 80 million and a production base area of 35,000 square meters., and a high-tech and well-trained team of more than 260 employees, including 80 engineering and technical personnel (5 senior engineers and 50 professionals with junior and intermediate titles) and more than 100 certified welders. These employees have the extensive experience in the manufacturing and installation of pressure vessels and the on-site manufacturing of large equipment. In addition to the high-quality production supporting equipment, the company has the advanced and perfect inspection and testing equipment, pressure leakage test equipment, physical and chemical equipment, welding laboratory and so on.
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