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INDUSTRIAL STEAM BOILERS
FAQS OCTOBER 2020
ATTSU International Tel: +34
972 171 738 attsu@attsu.com
www.attsu.com
ATTSU International
Tel: +34 972 171 738
attsu@attsu.com www.attsu.com
What is thermography and how is it applied to industrial boilers?
Thermography is a visual study using infrared rays of the different temperatures in a process, which visually displays energy losses or anomalies in real time
based on the heat that is dissipated in installations.
In the case of industrial steam boilers, thermography can be used as a means for detection in preventive maintenance of their operations, identifying
temperatures that are too high or too low in each area of the installation. In addition to detecting faults in areas of the boiler circuit, it can also identify points
where performance can be improved, without affecting the operation of the boiler.
ATTSU steam boilers are equipped with the latest process control, data collection and monitoring technology to study the performance of the steam
installation.
ATTSU International
Tel: +34 972 171 738
attsu@attsu.com www.attsu.com
How is each type of boiler proportioned to suit each process?
The criteria used to calculate which boiler is the most suitable for a specific industrial process are as follows:
• Output: this is the most immediate measure, and consists of calculating the work that the new boiler is expected to do, compared to the energy it will
need to operate and the operating time.
• Working or design pressure: calculated to determine how high the boiler will go while operating. The steam consumption point farthest away from
the production point in the boiler must be taken into account.
• Steam production: the steam consumption necessary for the process to which the system is to be applied is crucial when adjusting the dimensions of
the boiler and the extent of the circuit.
• Continuous working temperature: the correct temperature must be maintained for the maximum operating time, without requiring extra work to
keep it constant.
The industrial boilers manufactured and sold by ATTSU are fully adapted to the needs of customers, and its boiler designs go beyond the standard models.
ATTSU International
Tel: +34 972 171 738
attsu@attsu.com www.attsu.com
What is a three-pass steam boiler and what are its advantages?
Three-pass steam boilers are so-called because the combustion gases that are produced inside them in the burner go round a circuit that has three parts
before leaving it:
• The first pass of gases takes place when they leave the burner for the combustion chamber.
• The second pass of gases is through the inversion chamber, which is completely cooled by water.
• The third pass of gases sends them back in the opposite direction towards the rear gas chamber.
Boilers that have this internal structure tend to use larger volumes of water due to their design, compared to other boilers that have two gas passes.
This means they can absorb specific production peaks due to having larger volumes of water that can be evaporated and transformed into steam.
The animated graphic below shows the sequence in which the gases pass through the ATTSU HH model three-pass gas fire tube steam boiler.
ATTSU International
Tel: +34 972 171 738
attsu@attsu.com www.attsu.com
What types of burner control are there for industrial boilers?
There are two types of burners for industrial steam boilers, depending on how they control the mixture of air and fuel at the key point in the boiler's
operation, which is the generation of combustion.
• In mechanically controlled burners, the installation's operator has to make the adjustments needed to ensure that the combustion is as fuel-efficient as
possible. They operate by means of servomotors and mechanically activated hatches. They are regulated mechanically, with springs and screws.
• Electronic burners are digitally controlled, and have advantages over mechanical burners in terms of performance and maintenance, since they are adjusted
by an electronic signal and do not suffer from mechanical imbalances due to movement.
A mechanical burner or an electronic burner can be installed depending on the customer's needs.
ATTSU installs burners adapted to the fuel used by their boilers, equipped with an oxygen probe, a variable speed drive, etc.

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Attsu steam boilers faqs october 2020

  • 1. INDUSTRIAL STEAM BOILERS FAQS OCTOBER 2020 ATTSU International Tel: +34 972 171 738 attsu@attsu.com www.attsu.com
  • 2. ATTSU International Tel: +34 972 171 738 attsu@attsu.com www.attsu.com What is thermography and how is it applied to industrial boilers? Thermography is a visual study using infrared rays of the different temperatures in a process, which visually displays energy losses or anomalies in real time based on the heat that is dissipated in installations. In the case of industrial steam boilers, thermography can be used as a means for detection in preventive maintenance of their operations, identifying temperatures that are too high or too low in each area of the installation. In addition to detecting faults in areas of the boiler circuit, it can also identify points where performance can be improved, without affecting the operation of the boiler. ATTSU steam boilers are equipped with the latest process control, data collection and monitoring technology to study the performance of the steam installation.
  • 3. ATTSU International Tel: +34 972 171 738 attsu@attsu.com www.attsu.com How is each type of boiler proportioned to suit each process? The criteria used to calculate which boiler is the most suitable for a specific industrial process are as follows: • Output: this is the most immediate measure, and consists of calculating the work that the new boiler is expected to do, compared to the energy it will need to operate and the operating time. • Working or design pressure: calculated to determine how high the boiler will go while operating. The steam consumption point farthest away from the production point in the boiler must be taken into account. • Steam production: the steam consumption necessary for the process to which the system is to be applied is crucial when adjusting the dimensions of the boiler and the extent of the circuit. • Continuous working temperature: the correct temperature must be maintained for the maximum operating time, without requiring extra work to keep it constant. The industrial boilers manufactured and sold by ATTSU are fully adapted to the needs of customers, and its boiler designs go beyond the standard models.
  • 4. ATTSU International Tel: +34 972 171 738 attsu@attsu.com www.attsu.com What is a three-pass steam boiler and what are its advantages? Three-pass steam boilers are so-called because the combustion gases that are produced inside them in the burner go round a circuit that has three parts before leaving it: • The first pass of gases takes place when they leave the burner for the combustion chamber. • The second pass of gases is through the inversion chamber, which is completely cooled by water. • The third pass of gases sends them back in the opposite direction towards the rear gas chamber. Boilers that have this internal structure tend to use larger volumes of water due to their design, compared to other boilers that have two gas passes. This means they can absorb specific production peaks due to having larger volumes of water that can be evaporated and transformed into steam. The animated graphic below shows the sequence in which the gases pass through the ATTSU HH model three-pass gas fire tube steam boiler.
  • 5. ATTSU International Tel: +34 972 171 738 attsu@attsu.com www.attsu.com What types of burner control are there for industrial boilers? There are two types of burners for industrial steam boilers, depending on how they control the mixture of air and fuel at the key point in the boiler's operation, which is the generation of combustion. • In mechanically controlled burners, the installation's operator has to make the adjustments needed to ensure that the combustion is as fuel-efficient as possible. They operate by means of servomotors and mechanically activated hatches. They are regulated mechanically, with springs and screws. • Electronic burners are digitally controlled, and have advantages over mechanical burners in terms of performance and maintenance, since they are adjusted by an electronic signal and do not suffer from mechanical imbalances due to movement. A mechanical burner or an electronic burner can be installed depending on the customer's needs. ATTSU installs burners adapted to the fuel used by their boilers, equipped with an oxygen probe, a variable speed drive, etc.