Tag: heat exchanger manufacturer in India

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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:

Heat Exchanger Tubes

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

Anand Seamless Ltd offers a wide range of products including finned tubes, fin tube heat exchangers, etc. From high-quality seamless tubes to hydraulic tubes and from seamless pipes to mechanical tubes, we have a huge range of products. To know more you can call us at +91-9099996851 or send your queries to inquiry@anandseamless.com.

Also Read:

Common Mechanical Failures in Shell & Heat Exchanger Tubes

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Why is it Necessary to Maintain a Heat Exchanger?

By adminJan 23,2019

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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:

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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.

heat exchanger tubes

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!

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Most Common Mechanical Failure in Shell & Heat Exchanger Tubes

By adminNov 5,2018

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Heat Exchanger Tubes and shell are much favoured by big plant engineers. This has been since a very long time as shell and heat exchanger tubes require low maintenance and are highly efficient in transferring heat. Stainless steel heat exchangers are surely durable and reliable but at times using these tubes for a long haul can take a toll at these tubes and induce stress.

Mechanical failures can be identified in many forms and consequences. If you can identify these failures than you can prevent it in a timely way. Anand Seamless Ltd, being a leading heat exchanger manufacturer in India, can easily identify these problems and so we are here to help. We have mentioned below the most common mechanical failure, that being a plant engineer, you are surely aware of!

1. Metal Erosion

Metal Erosion can affect the quality of your heat exchanger tubes in two ways:

  • Metal erosion makes the tubes weaker and more prone to damage.
  • The outer layer of the heat exchanger is the protective layer. As the protective layer is overuse, the tubes face a larger risk of damage along with corrosion.

Causes Of Metal Erosion

Metal erosion occurs due to the exorbitant speed of the flow and the wearing caused due to the solid in the slurry streams. Also, high temperatures are also responsible to increase the occurrence of metal erosion. Plant engineers can encounter this erosion at the entrance or at the U-tube bends.

Preventing Metal Erosion on Heat Exchanger Tubes

It is important to understand the maximum volume of flow a tube can endure while posing no threat to the components transferred. This varies on the types of tubes, their material of construction and also on the component you are transferring. A stainless steel or carbon heat exchanger tubes can easily handle a higher flow of components than a copper shell and heat exchanger tubes. You can select from a range of alloys, depending upon your need of flow and types of components.

2. Fatigue

Thermal cycling can induce fatigue in shell and tube heat exchangers. This fatigue can cause cracking in the tubes. The cracks begin with small and light striations but can quickly escalate and grow larger.

Causes of Fatigue

There are two reasons behind this fatigue, namely:

  • High Stress
  • Poor Welding
  • Stress-induced through thermal expansion

Preventing Fatigue On Heat Exchanger Tubes

Fatigue can be avoided by fabrication. Also, try to adjust your plant’s process in a way that it induces less stress or a induce that the equipment can manage to handle.

Plant engineers favour shell and heat exchanger tubes to make their plant long-lasting as they provide high endurance with minimal maintenance. It can easily transfer heat, thus being multi-purpose. But you need to choose the right kind in the better quality for best results.

Buy From The Leading Heat Exchanger Manufacturer in India!

To be certain of the good quality, try getting the heat exchanger tubes from the most trusted and established Heat Exchanger Tube Manufacturer in India. Call Anand Seamless Ltd. We provide a wide range of seamless tubes that are the finest and the most productive in the industry. Contact us now to get a quote.

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