A Complete Guide to Different Types of Finned Tubes
By adminFeb 17,2021
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Finned tubes serve as heat exchangers that generally use air to cool or heat fluids such as water and oil. These mechanical tubes are used across industries in diesel charge air coolers, oil coolers, hydrogen coolers, waste heat recovery, driers, air conditioning, air heaters, generator coolers, and steam condensers.
When discussing heat exchanger tubes, they are designed to transfer heat from one medium to another during processing and are well-suited for high-pressure applications. To maintain the efficiency of your heat exchanger tubes, it is essential to follow good cleaning practices to avoid degradation. Therefore, to prevent disruption to your production process and avoid these problems, it is best to regularly clean and maintain your heat exchangers. Learn how you can maintain heat exchanger tubes and reduce your operational expenses.
Top 5 Tips & Tricks to Maintain Heat Exchanger Tubes!
Periodic Cleaning & Maintenance
For any equipment to operate at its maximum efficiency, it must be maintained properly. Cleaning the heat exchanger tubes will prevent the buildup of sediments and dust to damaging levels. It is beneficial to conduct timely inspections to ensure that the equipment is fully operational and complies with regulatory requirements. Additionally, ensure that external surfaces such as shell sides, tube bundles, and interior pipelines are thoroughly cleaned.
Be Careful with Sediment Deposits
Removing hard sediment deposits can be challenging. Some companies even use hammers and chisels to remove the build-up, which can be particularly damaging to the tubes. When cleaning, it’s important to read the heat exchanger manufacturer’s instructions and consider hiring professional help. Professionals use the right cleaning tools, such as band-saws and ultra-high pressure water jetting, to effectively remove thick polymer deposits and enhance the efficiency of your process.
Ensure Proper Flow Rate
The fluid temperature and velocity significantly influence fouling on heat exchanger tubes. Regularly check and adjust flow rates to prevent fouling. Additionally, shell and tube heat exchangers, due to low internal fluid velocities, are prone to fouling. To maintain efficiency, keep heat transfer surfaces clean.
Use Clean-in-place Equipment (CIP)
If you are dealing with lime deposits or want to protect the surface of the heat exchanger tube against corrosion, clean-in-place equipment can clean your exchanger in a smooth and hassle-free manner. There is no need for disassembly, and the equipment provides both chemical and mechanical cleaning. With the clean-in-place method, you can clean the internal and external surfaces to remove various sediment deposits. However, before proceeding with this procedure, read the heat exchanger manufacturer’s instructions to know whether CIP is allowed. If not, you may have to clean the tube manually.
Prevent Leaks by Replacing Gaskets Every Once in a While
The majority of gaskets in plate heat exchanger tubes are made from perishable rubber polymers. Over time, these rubber polymers can lose their ability to seal effectively. Therefore, it is essential to replace the gaskets periodically to prevent leaks and improve the efficiency of heat exchangers.
Get the Highest Quality Heat Exchanger Tubes from Us!
At Anand Seamless Ltd, we offer a wide range of cold-drawn tubes and heat exchanger tubes used across various industries. As one of the leading heat exchanger tube manufacturers in India, we specialize in delivering high-quality, customizable solutions to our clients on time. Contact us today at +91-9099996851 or email us at inquiry@anandseamless.com to send us your inquiries!
Purchasing Heat Exchanger Tubes: Top 5 Mistakes to Avoid
By adminAug 5,2020
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Heat exchanger tubes find application in heat transfer. They are an essential component in steel plants, power plants, refineries, fertilizer plants, chemical factories and shipbuilding.
A poorly installed heat exchanger tube or one that does not match up to specifications can lead to failure of the entire heat exchanger systems. So whether you are purchasing a heat exchanger tube or replacing an old unit, here are top five mistakes that you should avoid making:
Excessive Fouling
Excessive fouling in a heat exchanger tube can be a result of inadequate cleaning of the system or due to chemical fouling and corrosion of the material. In either case, the end-result is damaging. It can reduce the efficiency of your heat exchanger and increase energy consumption.
For instance, food products that contain high levels of protein can cause excessive fouling in the heat exchanger. Where waste management systems are concerned, the threat is from limescale.
The best way to avoid excessive fouling is by picking out the right type of heat exchanger. You can pick scraped surfaces or corrugated tubes. These reduce fouling in the system by increasing turbulence. You can also ensure the maintenance of the right temperature to keep your heat exchanger safe.
Wrong Material Choice
Carbon steel is a more affordable option as compared to stainless steel. But remember that cheaper isn’t necessarily a better option. Stainless steel is better at withstanding corrosion and chemical reaction. Specifying the right material for your heat exchanger is critical. Picking out the wrong material can cause catastrophic damage to your unit.
Incorrect Pressure Drop
Incorrect pressure drop in the heat exchanger tube can lead to contamination and even failure of the heat exchanger. The reason for this is usually a pressure drop that is higher than the specifications provided for the design. It can also be due to a change in the raw material specification.
To avoid this mistake, make sure you ask for full details of the product from your suppliers. Also, do test the product before purchasing it.
Poor Location
Ensure that your heat exchanger tube is the right size and has not been placed in a congested space. A common problem is that heat exchangers are placed in a space that is crammed with wires or complex pipework. Look for a heat exchanger that can fit into the space that you have. This helps in cleaning and maintenance of the exchanger.
Insufficient Capacity
A lot of people pick out smaller units to save money. However, this can be damaging to your business in the long run. The best way to address this issue is by picking out a modular design, which allows you to scale up production as and when required. It may incur you some cost to arrange for the additional space, but it is better than purchasing an over-specified unit.
Need expert advice regarding heat exchanger tubes? Reach out to the experts at Anand Seamless Ltd – leading heat exchanger manufacturer in India.
Reach Out for All Your Heat Exchanger Requirements
A seamless tube, also known as seamless pipe, is a tube that has no seam or a weld-joint. It is a solid metal tube with a uniform structure. Each end is connected to another tube without any welding joints. This increases the ability to withstand high pressure, corrosive atmosphere, mechanical stress, and very high temperature. Seamless tubes have a thread-like structure at one end or both at times. This is used to connect the end of another hollow tube.
Seamless tubes are considered to be strong enough to resist high pressure from numerous industrial forces. This is not possible in a welded tube, because, a seam or joint acts as a weak section for the tube. A hydraulic seamless tube is specifically designed to resist dynamic loads and high static offering an enduring, staunch solution.
Hydraulic seamless tubes are widely used in petrochemical industries, refineries, power industries, chemical industries, aerospace industries, automotive industries, etc. Heat exchanger tubes, hydraulic tubes, boiler tubes, mechanical tubes, finned tubes, etc. required in these industries are hydraulic seamless tubes.
For example, the heat exchanger tubes are used to transfer heat from one medium to another for heating and cooling processes. These tubes are considered to be more reliable and strong as they do not have any joints. Mostly, the overall energy efficiency of a plant can be determined by these tubes.
The length of seamless tubes is comparatively short whereas welded tubes are available in long continuous lengths because of the joints.
Basic Features of Hydraulic Seamless Tubes
Smooth interior and exterior surfaces
No seams or welds
Thick scale-free surface
High-pressure resistance
Superior performance
High corrosion resistance
Elevated durability
Robustness
High tensile strength
High-reliability factor
How Are Seamless Tubes Made!
Hydraulic seamless tubes are typically made of several alloys and solid round steel bars of metals such as stainless steel, carbon steel, tungsten, etc. These metal pieces are converted into hollow tubes by heating and rolling over to the required forms.
Mostly, the Drawn on Mandrel Method, also known as the Cold Drawn Process, is used to make the seamless tubes. This process, basically, ensures dimensional tolerance of the tube as well as a smooth finish for both interior and exterior sections.
In this process, the steel bar is heated at a very high temperature with the help of a furnace. Then, a cylindrical void is formed. The thickness of the tube depends on the requirement. Further, various roll straightening machines operate on these structures which take care of the straightness in the tubes. Multiple quality checks are done before the tubes move out of the manufacturing units.
The size of a seamless tube can vary from 1/8 inch to 25 inch OD. The thickness can also be customized based on the client’s specifications. It is interesting to know that the working pressure of a seamless tube is 20% more than a welded tube. However, depending on the usage, either can be selected.
Seamless tubes are mostly considered in areas where highest safety measures are required. They have a homogenous structure and provide high corrosion resistance. Seamless tubes are meant for high performance and quality processes. Therefore, they are more expensive than welded tubes.
At Anand Seamless Ltd, we manufacture a wide range of hydraulic tubes as per the industry standards. We also manufacture boiler tubes, mechanical tubes, and finned tubes.
For more information about our products, please call us at +91-9099996851.
A Complete Guide Understanding the Heat Exchanger Tubes
By adminSep 11,2019
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The technology used in heat exchanger tubes is very old involving different methods of heat transfer such as radiation, convection, and conduction.
Heat exchanger tube is a device which is used to transfer heat from one medium to another for both cooling and heating processes. It separates the medium which is being used. Heat is transferred through these exchanger tubes by the conduction process. Mediums can be liquid, vapor, or gas. For example, an air-cooled heat exchanger uses air to cool a liquid and a shell & tube heat exchanger is for passing fluids.
The term ‘heat exchanger’ is mostly used when we refer to tube hear exchangers and plate heat exchangers. Refrigerators, chemical plants, air conditioners, power stations, etc. use the heat exchanging process. At times, the overall energy efficiency of a plant can be determined by these tubes. This article focuses on everything you need to know about heat exchanger tubes including the different types of tubes and their applications.
Heat Exchanger Pass
The movement of the fluid through the heat exchanger tubes is known as heat exchanger pass. Single pass is when the fluid enters from one end and exits from the other end of the heat exchanger tube. Double pass allows the fluid to enter and exit from the same end. In triple pass, the fluid passes the heat exchanger tube three times before it finally exits.
Types of Heat Exchanger Tubes & Their Characteristics
The selection of a particular heat exchanger tube depends on the rate of heat transfer. Moreover, the required heat load and temperature signify the size of the heat exchanger tubes. These can be manufactured in U-Bent shapes or Straight Lengths based on the requirements. It is interesting to know that the basic configuration of heat exchangers remain the same irrespective of their different sizes and complexities.
Based on their design characteristics, heat exchangers and their applications are classified. These characteristics define the efficiency of the tubes including some factors.
Classification Based On Flow Configuration
The movement of the flow of the fluid is also considered in heat exchanger tubes. There are four main flow configurations – 1. Parallel flow, where the fluids move in the same direction. 2. Counter flow, here the fluids move in opposite directions. This is more efficient than the parallel flow heat exchanger. 3. Cross flow, this allows the fluid to move perpendicular to each other. 4. Hybrid flow, here multiple flow passes can take place.
The rate in which the fluid flows in the exchanger tubes matters a lot. This is known as the flow rate. The capacity of heat exchanger to transfer heat increases with the increase in the flow rate. However, this also increases the mass and velocity, reducing the pressure ultimately making it a challenge to remove the energy.
Classification Based On Heat Transfer Mechanism
Heat exchanger tubes have two types of heat transfer mechanisms – single phase or two phase. There is no phase change in the first type of heat transfer process. In simple words, fluids continue to remain in the same state as they enter the heat exchanger tube. The latter type is opposite to this. It allows the fluids to change their state during the heat transfer process. Therefore, based on heat transfer mechanism, heat exchangers can be classified into four types:
Single phase convection on both sides
Single phase on one side and two-phase on the other side
Two phase convention on both sides
Radiative & combined convection heat transfer
Classification Based On Construction Method
Based on their construction methods heat exchanger tubes can be classified as the following:
Capacitive heat exchangers – Here, warm and cool fluids flow through the same channel alternately. These are basically of two types – static & dynamic heat exchangers. In the former, the heat exchanger components remain static during the flow while in the latter, the components move throughout the process.
Recuperative heat exchangers – Here, each fluid flows through its own channel simultaneously. These are basically of two types – Direct & indirect contact heat exchangers. In the former, heat transfers from one fluid to another with direct contact (fluids are not separated inside the tube), whereas, in the latter fluids flow separate inside the tube.
Components & materials used – This depends on the type of the heat exchanger and its application. Some common ones are tubes, shells, plates, fins, spiral tubes, etc.
Factors to consider while selecting a heat exchanger:
Primary & secondary circuit liquid types
Temperature and flow rates of both
What is the purpose of the primary circuit
To name a few heat exchanger tubes, we have shell and tube heat exchanger, plate heat exchanger, plate and shell heat exchanger, plate fin heat exchanger, etc.
Application of Heat Exchangers
These heat exchanger tubes are mostly used in power plants, chemical factories, ship buildings, fertilizer plants, refineries, steel plants, etc. Their application is usually in high pressure equipment, air pre heaters, air coolers, pressure vessels, heat exchanger tube sheets, boilers, cryogenic pressure vessels, finned tubes, etc.
Increase The Life Span of a Heat Exchanger
There are certain ways which can help increase the life time of a heat exchanger. The design data has to be accurate. It will enhance the thermal efficiency and also increase the life of the heat exchanger. Another point to consider is the filling and pipe work. Moreover, with regular maintenance and service life span of the heat exchangers can increase.
The thermal energy required for heating or cooling a liquid is also provided by the heat exchangers.
Anand Seamless Ltd is a leading heat exchanger manufacturer. We have the expertise and resources to produce and supply premium quality seamless tubes.
For more information about our products, please call us at +91-9099996851. We’ll be happy to assist you!
How to Reduce Fatigue Problems in Heat Exchangers?
By adminAug 20,2019
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Heat exchanger is a system utilized for transferring heat from one medium to another for both cooling and heating processes. This system is widely used in air conditioning, refrigeration, chemical plants, power stations, sewage treatments, etc. However, the term heat exchanger is mostly used when we talk about plate heat exchangers or shell and tube heat exchangers.
When we keep a check on the performance and behavior of the heat exchangers, operating failures can be predicted and prevented. Hence, fatigue analysis, measuring the thermal, and mechanical cyclic loads, are crucial segments of heat exchangers.
High thermal efficiency, ability to withstand high pressure, and compact size keep plate-and-shell heat exchanger tubes very much in demand. But these also make them sensitive to material fatigue. Having a critical process, heat exchanges should be capable enough to handle fatigue problems. However, the designs of most of the conventional unit heat exchangers tend to create gratuitous problems and equipment breakdown.
One of the most typical reasons for mechanical structures failing is material fatigue. It occurs when a machine part is exposed to loads that change with the change in temperature over time. This causes the machine part to break.
Such failures are sudden with no prior warning signs or indications. Therefore, it is not easy to predict metal fatigue which may result in serious damage or accidents. A very good example here can be railroad axels. Due to their rotations, they can be subjected to cyclic loads. The axel can break suddenly without warning due to the stress acting on it.
The starting point for fatigue failures is small cracks caused due to undercuts, surface cracks, pores, etc. Stress concentrations also lead to fatigue cracks. Welding techniques used for materials also decrease fatigue resistance in them.
Let us check how the fatigue problems can be avoided with the help of great designs and changes in manufacturing practices.
Examining the entire heat exchanger process and optimizing it based on fatigue-related issues is the most efficient way to reduce fatigue problems. Check if the particular heat exchanger is designed to withstand fatigue. If not, a few changes in it can have a great influence on fatigue resistance.
When we talk about the popularity of plate-and-shell heat exchangers, we cannot deny that they have poor fatigue resistance capacity. Credit goes to the design. Specific faults in the design are – the conventional plate pattern, less mechanical strength, and inferior welding techniques/quality. Overcoming these problems can enhance fatigue resistance in heat exchangers.
The Conventional Plate Pattern
Extra stress is caused due to the corrugation pattern because of the conventional plate leading to fatigue failure. To avoid this, a new plate pattern with equal thermal expansion and mechanical strength should be created keeping both identical in all directions. This can be possible if the plate comprises of distributed bumps and depressions. Such design change can enhance fatigue resistance as it would reduce the stress concentrations drastically.
Less Mechanical Strength
A little change in the strengthening of the plate can reduce fatigue problems. This can be done by running the inlet and outlet tubes through the entire heat exchangers instead of aborting them at the end of the plate pack. Moreover, to reduce the stress, only the think end covers of the tubes should be welded.
Welding Quality
Inferior welding quality leading to cracks can cause fatigue problems. Laser welding is definitely one of the best ways to help in fatigue resistance.
Changes in the temperature can cause cyclic thermal stress leading to thermal fatigue. It can be also caused due to repeated thermal cycling in shell and tube heat exchangers. This results in cracking of the tubes which can completely cleave them if not addressed soon. Stress definitely reduces fatigue resistance in heat exchanger tubes.
Fabrication and reduced amount of stress in heat exchanger tubes are important to avoid fatigue. Stainless steel fabrication is able to handle higher velocities as compared to others. The number of heat exchangers in industrial enterprises has greatly increased in most of the middle east countries as well. Egypt, Qatar, Oman, Saudi Arabia, UAE are to name a few. Technology plays an important role for them making necessary changes especially when it comes to fatigue resistance.
As a leading heat exchanger manufacturer in India, we have the knowledge and expertise to help you when it comes to heat transfer application. For more information about our heat exchanger tubes, please call us at +91-9099996851. You could also fill out our online form to submit a quick inquiry.
Seamless Tubes – Facts, Manufacturing Process & Industrial Uses
By adminMar 12,2019
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Pipes or tubes without a seam or a weld-joint are known as seamless pipes/tubes. These pipes are solid metal tubes having a uniform structure and strength all over with no joints. Ideally, each end of the tube is connected to another without any joint. This increases the ability to withstand higher temperature, pressure, mechanical stress, and corrosive atmosphere.
Seamless tubes or pipes are usually made from solid round steel bars of metals such as carbon steel, tungsten, stainless steel, or molybdenum. To convert it into a hollow tube, the metal piece is heated and rolled over a form.
Some Facts About Seamless Tubes
A seamless tube is thrust out and drawn from a small bar of metal
A seamless tube is short in length as compared to a welded tube
A seamless tube is more expensive than a welded tube
A seamless tube presents a higher range of safety measures
A seamless tube provides high corrosion resistance
A seamless tube has a homogenous structure
Industrial Use
Seamless tubes are widely used in areas such as refinery, petrochemical, fertilizer, power, chemical, automotive, etc. These tubes are considered to be more reliable and strong as they do not have any joints or welds. Seamless carbon steel tubes are also made in straight units of single or double unsystematic or fixed lengths.
The ability to withstand pressure allows these pipes to be used at various processes. High-pressure equipment, heat exchanger tubes, steam release pipes, cryogenic pressure vessels, air cooler tubes, air preheaters, steam trap piping, etc. all use seamless tubes.
Manufacturing Process
Anand Seamless Tubes is one of India’s leading manufacturers and exporters of different types of Cold-Drawn Carbon Steel and Alloy Steel Seamless Tubes. It has been accredited and approved with numerous national and international entities.
For Seamless Tubes, Anand Seamless Ltd uses the Drawn on Mandrel Method, also known as the Cold Drawn Process, which usually takes care of the smooth interior and exterior finish as well as the dimensional tolerance.
In this process, a rotary furnace is used to heat a steel billet at very high temperature fabricating a cylindrical void. With extended help, outside diameter and thickness are attained.
Based on client specifications and requirements, the tubes are stress relieved, normalized, and tempered. Further, multiple roll straightening equipment are used to acquire accurate straightness in tubes. In other words, Seamless Pipes are created by shaping metal to the desired length.
Highest quality levels are maintained at Anand Seamless Ltd. No product reaches moves out without rigorous quality checks. Export sections are packaged with special 4-layer packaging to ensure the products reach their destination intact.
Heat exchangers are used in a number of industries to strike a perfect balance of temperature between the hot and the cold fluids. It is used as such that the temperature of one fluid can balance off the temperature of another, making your plant use less energy and time. But what if there are heat exchanger tubes break-downs, that could have been avoided?
Reasons Why Maintaining a Heat Exchanger is Necessary
Being the leading heat exchanger manufacturer in India, let us inform you one thing. No matter the size of the plant or the heat exchanger, it will need to have proper maintenance and upkeep. Want to know why? Below, we have mentioned three crucial reasons that make it absolutely necessary for the heat exchangers to have proper and regular upkeep.
1. Contaminants in the Heat Exchanger can reduce its efficiency
Maintaining a heat exchanger can prolong its durability and reduce the cost as it decreases the chances of replacement. No matter if they are old or new, every heat transfer systems that utilize coolant fluids and water, will by default accumulate many oily contaminants or mineral scales, while it is operating. Even the slightest buildup of these contaminants can cause drastic fall or reduction in the efficiency of the heat exchangers.
2. Thermal conductivity can be at risk with build-up materials on both the ends
The performance of every heat exchanger is based on its shape and design. To ensure that the performance matches the design, you need to remove the fouling as it develops. Heat exchangers are used for transferring heat in motion. The rate at which the transfer takes place is known as the rate of heat transfer. Generally, these exchangers use the method of conductivity to transfer the heat and the build-up material can cause problems for thermal conductivity to do its job.
These contaminants can be removed with the help of cleaning processes and tools such as scrapers, high-pressure water jet, chemicals or brushes.
3. Cleaning can help you have a better oil viscosity
This is especially for the shells of the heat exchangers. The inside of the shell can develop lacquer, varnish, oil sludge, algae and other foreign particles in the form of contaminants. These contaminants can make you lose about 15 to 30 per cent of the heat transfer, due to their build up.
Shell replacement is costly but if you clean it then you can achieve about 98% of your original performance for heat transfer. This can also help you control the oil viscosity as it becomes more competent towards controlling the temperature of heat.
Want Easy Solutions?
Damaged heat exchangers can pose as a great threat, some even worry of it being fatal. Thus always consult a professional when you witness a build-up of contaminants or any decrease in efficiency or performance of these exchangers. You need to get in touch with the technicians of the leading heat exchanger manufacturers in India, Anand Seamless Ltd. We not only provide a better quality of products but also superior services in terms of maintenance. Call us at +91-9099996851 or drop us a mail on inquiry@anandseamless.com to book an appointment with us. Get in touch today!
You might also be interested in the following articles regarding heat exchanger tubes:
With a high tensile strength and high resistance against corrosion and contamination, seamless tubes and pipes are surprisingly easy to install. They can withstand any weather and is highly cost-effective, making it an ideal choice for many plant designers.
The main point of differentiation is the polish. But before we delve into it, you need to understand a bit more on the benefits as it will help you to understand more on where can a seamless pipe fit in your industry.
Three Benefits Of Seamless Tubes and Pipes:
Seamless Tubes are made out of round and solid steel billet, which is heated at high temperature. After being heated, it is then pulled over and stretched to shape it into a hollow tube. There are three great advantages to have this carefully manufactured seamless tubes and pipes.
1. Increased Pressure Rating
For people who have welded pipes in their plant, definitely, know why it is weak. As for others, welded pipes have a joint that makes them weak. Thus, get seamless pipes for your plants and get increased pressure rating. This is possible as they do not have a seam to make them weak.
2. Uniform Shape
No two welded pipes are the same and so they lack uniformity. You can be relieved on the uniformity and thus be sure of the consistency of your production plant with Seamless Tubes.
3. Reliable Strength Against Loads
We agree that seamless pipes are costlier than the welded ones but we feel that it is justified. Seamless tubes and pipes provide reliable strength against loads. Also, a welded pipe can have leaks on its seam, thus can spoil your plant and the whole process.
These benefits are variable in nature, depending upon the polishing on the seamless tubes and seamless pipes.
Types Of Polishing for Seamless Tubes
1. Mechanical
Mechanical polishing is done by hands and is ideal for polishing the simple parts, and medium to small parts.
Advantages:
Parts are smooth
Bright parts
Disadvantages:
Labour Intensive
Causes Serious Pollution
Luster is not consistent
2. Chemical
This can be suitable for small parts that are complex or do not require luminosity.
Advantages:
Fast and efficient polishing
Great resistance against corrosion
Disadvantages:
Poor lighting
Difficulty in heating
3. Electrochemical
This polishing process is suitable for plants that require mass production to produce high-quality goods. The polishing allows the plant to be tolerant and stable even for simple operations.
Advantages:
Stable process
Long-mirror gloss
Good resistance against corrosion
Low cost of polishing
Disadvantages:
Complex parts need to be processed
Large quantities of auxiliary electrodes produced
Get Superior Quality Seamless Pipes
Our superior quality seamless pipes can be used in many industries and matches all national and international standards. We, Anand Seamless Ltd, being among the most reliable seamless tubes and pipes manufacturer in India, we can assure you that your plant is safe with our tubes and plants. We are amongst the leading manufacturers of Seamless Tubes, Heat Exchanger Tubes, U tubes and Fin Tubes following the Indian standard of ISO 9001: 2015 and is accredited by different bodies such as Indian Boiler Regulation, Engineers India Limited, Projects and Development India Limited and many more. Call us on +91-9099996851 or drop us a mail on inquiry@anandseamless.com in case of any inquiry!
Why Are Counter Flow Heat Exchanger Tubes More Efficient
By adminNov 22,2018
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Heat Exchanger Tubes are used in many industries that require the transportation of important fluids in their appropriate temperature. Many industries are looking for more efficiency generating results. For such industries, there are plant designers who have come up with Counter-flow heat exchangers that allow the industries to generate higher output and income.
But before we delve into the counter flow heat exchanger, it is important to understand the types of heat exchangers that the most reputed heat exchanger manufacturers in India produce.
There are Three Types of Heat Exchanger Tubes:
1. Plate Heat Exchanger
2. Shell and Heat Exchanger Tubes
3. Air Cooled Heat Exchanger
1. Shell and Heat Exchanger Tubes
Shell and Heat Exchanger Tubes are a large number of small tubes, arranged inside a cylindrical shell. The tubes are arranged using a ‘tube stack’ or tube bundle which either be floating or fixed. The floating tube stack allows the tubes to contract and expand and also allows the tubes to be easily serviced and maintained.
2. Plate Heat Exchanger
Plate Heat Exchangers are similar to the shell and heat exchanger tubes with only one difference. Instead of tubes, Plate Heat Exchanger uses plates and is usually gasketed or brazed depending upon its use and flow of fluids. These are generally used in food and beverages industry.
3. Air Cooled Heat Exchanger
These are generally used in vehicles where there is no permanent solution to cool the engine down or under the absence of a source of water. There are several combinations inside the Air Cooled Heat Exchanger.
Now, Counterflow is generally observed in shell and heat exchanger tubes and thus if you have an industry that uses them, the following is worth your read.
What is Counter Flow?
Counter Flow refers to the opposite flow of cool and hot liquids in the through the tubes in the shell, such that the liquids flow against each other. To understand more, you need to know more about Parallel Flow and Counter Flow.
1. Counter Flow Heat Exchanger
While having a counterflow setup, the fluids inside the shell and heat exchanger tubes travel in different or opposite directions. The counterflow allows:
The counterflow allows:
The heat to distribute evenly through the heat exchanger
The cold fluid maintains its temperature
2. Parallel Flow Heat Exchanger
In the parallel flow heat exchanger, both the hot and cold fluid travel in the same direction inside the shell. It will help to cool the hot fluid down but not as efficiently as Counter Flow Heat Exchanger.
Advantages Of Counter Flow Heat Exchanger
Business is all about numbers so we would like to let you know the number in numerical.
If you have a larger shell: Counter Flow will be able to increase the efficiency by 10 to 11 per cent
If you have a smaller shell: Counter Flow will be able to increase its efficiency by 1 to 2 per cent
Thus industries with big plants can benefit greatly from introducing a counterflow into their heat exchanger shell and tubes.
Explore The Best Heat Exchanger Manufacturer’s Collection!
Our heat exchanger tubes are of a great application in Cryogenic and other Pressure Vessels, high-pressure equipment, Tube sheets of Heat Exchangers, Air Pre Heater, Boilers, Finned Tubes, Air Cooler Tubes, and more.
Our Heat Exchangers are Used in Several Industries Including:
Refineries
Power Plants
Steel Plants
Chemical Factories
Fertilizer plants
Ship Building, and many more!
We believe in client satisfaction and thus provide custom solutions. Call us on +91-9099996851 or drop us a mail on inquiry@anandseamless.com in case of any inquiry or if you wish to have an instant quote!
