• THERMAL OIL HEATERS



    Used in zones where the supply of natural gas, gasoil or fuel oil is easy.



    They realize a warming of thermal oil in closed circuit.



    They yield heat for convection to consuming machines inside a productive process.
  • ELECTRICAL HEATERS AND BOILERS



    They contribute heat by means of electrical resistances of very low density.



    Performance of 100 % of the emaciated energy.
  • WASTE HEAT RECOVERY UNITS



    Used in the installations of cogeneration.



    They take advantage of the latent heat in the gases of combustion of engines, turbines, incinerators,...
  • HEAT EXCHANGERS



    - Vaporizer: used for small consumptions of steam in facilities of thermal oil.



    - Interaccumulator waters down warmly: warm water tank sanitary in facilities of thermal fluid.



    - Interchanger oil - oil: warming of vegetable(plant) oils with thermal oil.

Christmas time and Pirobloc

Christmas time and Pirobloc

As you already know, in our old post about Christmas 2008, PIROBLOC made public the Christmas image with which we are more identified and we explained the reason why.

In Pirobloc and in very precise moments of the year, like the dates that they are coming, we try to apply some matter of the particular scope that allows us to celebrate Christmas at enterprise level.

For that reason, we have thought about what is what all we do not lose over the years and all we like. The answer is: the capacity to play. So this year, if we had to choose a game that motivates inspires us, perhaps it would be the Chess.

Of modern or classic design, it remembers to us that it is always important to have a strategy which sometimes we must adapt against that of the other team during the game, in a field or framework that can change at any time, but always following the rules of the game.

In any case, see you in the New Year, or, for other great cultures that read our blog, in January.

Happy end of December to everybody.
Read More!

What is an electrical steam boiler?

electrical steam boiler
In our post about Pirobloc electrical steam boilers on 2008 we already spoke about the renewed this type of boilers, whose basic characteristics resides in that the energetic source that we used for the steam production is the electricity.

The body of the boiler, in this case, is greater with respect to the dimensions of the resistance that it lodges because it has a double function: the central and inferior part where the electrical resistance lodges, it is plenty of water; and the top of the tank body becomes a chamber that contains the steam produced thanks to the heating.

Logically, whichever major is the body-tank of the boiler, the camera will be able to lodge major quantity of steam and/or of greater quality: the steam will be very drier as it has minor direct contact with the surface of the water, inside the body of the boiler.

In this type of boilers, the thermal power is given to us by the power of the used electrical resistances, being their efficiency of the 100% of the consumed energy.

In reference to the pump, it will be of water in this type of boilers, for the feeding of the boiler body from public-supply water, from a tank in which it has been treated or decalcified, and to make the steam production.

Finally and because it is a steam machine, we would like to remember to you that it will be necessary to locate this boiler specifically in a room placed at a certain distance of the general walk of people, advising you to follow the rest of indications of location and use with regard to this type of machines under pressure.
Read More!

What is a electrical thermal oil boiler?

electrical thermal oil boiler
Following our previous blog, in which we introduced the concept of thermal oil boiler of gas, diesel oil or heavy fuel oil, today we will explain to you what is an electrical thermal oil boiler.


The main difference between this one and that ones is the energetic source that we use to reach the thermal fluid required temperature: While in conventional boilers at natural gas, diesel or heavy fuel oil, we have a burner that injects or pulverizes fuels, in the electrical boilers, where a flame does not exist, the heat is provided by an electrical resistance.

The body of the boiler, in this case, is usually made up of a cylindrical shell, in the interior of which it is placed a resistance, united both by connection flanges which close the chamber that we will fill of oil.

Once the body of the boiler is filled of oil, you will simply turn on the control panel and so, the resistance will begin to warm up the thermal oil to the required temperature. In this type of boilers, the thermal power is given by the used electrical resistances power.

Another important and also external element to the body of the boiler, it is the pump of impulsion of the fluid that we are warming up. The pump also serves to maintain a constant movement of the fluid inside the coils of the furnace and in the circuit, as well as to send it warms up until each consuming machine.

This type of boilers has an efficiency of the 100% of the consumed energy, although it is certain that, generally, it is the most expensive energy in almost all the markets, and therefore, to the cost of purchase of the equipment will be necessary to add the consumption in electricity that you think that you will use, to calculate the investment to make.

This is the reason why generally, its election is normally due to the lack of other fuels in the area where it is or it is going to be placed; or to cover small powers requirements and/or to be used in facilities where the process heating needs are not continuous.

In our next blog, we will speak about our electrical steam heaters.
Read More!

What is a thermal oil heater?

thermal oil heater
A heater is a recipient constituted basically by a furnace in which a heat transfer fluid is warmed up, from an energetic source that can be a liquid, gaseous, solid fuel or doughy like the glycerine, warm smokes or electricity.

They exist different designs from heaters, although the most common it usually uses conventional power sources as liquid or gaseous fuels and it consists of a furnace which lodges:
  • in its perimeter: coils (according to the design of each manufacturer they can be 1, 2 or 3 coils) through which flows a heat transfer fluid,
  • and in the centre, a flame produced by an external burner, source of heat transfer by convection.

In this type of heaters, the burner will be installed as a main and necessary source of heat to warm up the fluid that will contribute to heat to machines or external consumers. The burner will fix the thermal power of the heater, which will have to be designed to support it.

Another important and also external element to the body of the heater, it is the pump of impulsion of the fluid that we are warming up. The pump also serves to maintain a constant movement of the fluid inside the coils of the furnace and in the circuit, as well as to send it warms up until each consuming machine.

As far as the used fluid, this one has a double thermodynamic function: Its passage by the coil of the furnace contributes to the cooling of the coil, which yields its heat to the oil in return: A thermal exchange takes place. For that reason the preferred design for the thermal oil heaters is the aquotubular, that it assures a constant circulation, and not the pyrotubular one.

The thermal oil heaters, thanks to this fluid and to the fact that its heating it does not imply a change of phase, work at very low pressures being able however to reach normal service temperatures from 280 to 300ºC. Another important characteristic which defines them, it is the global high efficiency of the installation that usually oscillates between the 87 and 90%, based on the working temperatures.

In our next blog, we will speak about electrical thermal oil heaters.
Read More!

Subvention for your installations maintenance

CHANGE project
Commitment of PIROBLOC with the efficiency of the existing facilities and the power saving, we advise to our customers to carry out the preventive maintenance of their facilities. We put at their service the experience in the improvement of the efficiency of their electrical motors, burners combustion, etc…

We want to inform you that at the moment, the E.U. has started up a program to help the companies that wish to carry out investment in their facilities through the Trade Chambers of Europe. The Trade Chambers taking part in the program will supply to you the proceedings to access to such program.

The different Chambers of Commerce that have been integrated in the project, have already specialised technicians trained on the European project. For more information, please, check the following document about the CHANGE project.

In case of being interested in contracting the technical maintenance service of your thermal oil facilities, do not hesitate to put in contact with PIROBLOC.
Read More!

Approaches to design a boiler

thermal fluid heater
Traditionally the boilers used in all the industrial sectors were of steam.
When they begin to arise the boilers of thermal oil as alternative to the heating with steam in Spain, PIROBLOC was pioneer in this type of technology, not only using the imagination to create an own design, but also thinking of other important parameters, besides offering the vertical alternative to the existent horizontality in the market. 




In the design of a boiler they are important the hydraulic and thermodynamic simulations of the same one, under certain conditions given “a priori”; the correct calculations of the chimneys in relation to the combustion chamber and the dimensions of the pipe of installation of the boiler, besides the exhaustive calculations of the pressure body and its curvature. On the other hand, a thermal correct insulation of the boiler body will avoid leaks of heat and it will contribute to a more efficient yield of the group, as well as to a saving of fuel.



Lastly, a correct selection of the materials of production will be essential to obtain a “brilliant product”.
Read More!

New regulation of machines under pressure

The Regulation of machines under pressure has been modified by the R.D. 2060/2008 that was published in the BOE nº 31 of 05th/02/09 and which will enter in force the 05th/08/2009. With this modification, the E.U. try that every national regulations of machines under pressure of each country, they converge progressively in an unique European common regulation.


The contributed modifications are made in order to approach the Regulation of Installation of Equipments working under Pressure (used by the installers of equipment of these characteristics in Spain) to the European Directive 97-23-EC (used by the manufacturers of equipments of these characteristics, at European level), using similar concepts at which appear in the E.D. 97-23-EC .


It’s also pursued the uniformity to the values of the pressure tests, in reference to the differences that existed until this moment between both norms. They change the following categories:

About the boilers: from type A, B and C, they convert into 1st and 2nd class, although the criteria to determine the category are similar.

• About the installer companies.

• About the titles and attributions.

• The periodicity of the inspections with or without pressure test.

• They exist now 3 levels of tests, existing before 2 types.

• The periods of application change.

• It appears the figure of the Agent, who will be the organism in charge to make the tests.

• They change the organisms which apply the test, with more participation of the OCA’s (Authorized Control Organism).

• It changes the design of the plates.


There will be changes in reference to equipment and securities, but in a less way.

Do not hesitate to consult us the projects that you have in mind and how the new regulation can affect to them.

Read More!

Follow us! (II)


In this second chapter on the different systems from pursuit of our articles, we will explain to you the RSS system. This is a quite innovating system that is working in the Internet world from several years.

RSS means Simple Really Sindication (simple syndication) and it is used to distribute up-to-date content to the subscribers. It can be used the navigator (the newest versions of the main navigators) like in the clients of electronic mail more modern or programs designed specifically to read these contents RSS.

In order to be able to syndicate by RSS in this blog, you only must click in the syndication button (please see next image) that it is located on the top at left side in the blog.

This action links with a webpage where we can make the syndication in the most important existing web addon (Netvibes, Google, MyYahoo,…) or in syndication applications (through the web direction shown in the navigator) like for example RSSOwl, Feedreader,… without forgetting e-mail clients like Thunderbird.

Without a doubt, it is a very comfortable and fast system that allows you to follow the content of the blog in an automatic way. But because in many cases, it is an unknown system, I leave hereunder some explanations and tutorials that can help you to understand and more learn to use the RSS:
We hope that the present article has been useful for you and you are able to follow us with greater facility and comfort using the RSS. In the following and last chapter of this series, we will explain to you the last system of pursuit, included in cloud 2.0.

Read More!

Follow us!


The aim of this serie of articles is to explain to our readers the different systems that they have at their disposition in this blog to be able to follow our published articles.

The easiest and so far the most used form to follow a blog is to consult it each certain time to read new articles (we published articles every 15 days more or less). Nevertheless, the easiest it is not always the most comfortable or useful way.

In the Internet, they continuously appear new tools that help us in different tasks. And often, we heard speak or we read about these tools without arriving to understand them or to learn how to use them. This is the reason why we are writing a serie of articles where to explain different systems of blog pursuit.

In this article, we will explain to you how the new articles at the time of being published can be received by email. Without a doubt, this is a very simple and useful system that it avoids the continuous consultation of the blog.

In order to be able to receive articles in the electronic mail, you only must introduce your e-mail address in the box of the section “Receive the blog in your mail (located at left, on the top of the blog). Once introduced the email address, we can confirm the subscription using “Subscribe. Now only, you must to wait to receive the articles that are published.

We hope that this tool will be of utility for you and you will be able to follow us with more facility and comfort. In the next article of this series, we will explain a more innovating and variable system to you: the RSS. Read More!

Pirobloc France



PIROBLOC opens for the first time a direct branch in a foreign country, choosing France to do it, for being a mature market with clients who for years have trusting in our technology, products and facilities.

From the 1st December 2008, we will be able to take care of your requests for information and supply of products from our own branch PIROBLOC FRANCE.



Read More!

A year of great changes and boldness


First of all, we wish that this year 2009 is more propitious for all us than the arrived prognoses from different sectors.

By our part, we have closed a year that began with uncertainty, reaching the same economic result of 2007, which fills of satisfaction to us. Logically the objective is exactly the same for year 2009, in spite of the global economic conjuncture.

Like all you, with the new year we have written our own list of personal and professional intentions, which will be announced, being some of them the following ones:
  • PIROBLOC is releasing its new slogan.
  • PIROBLOC develops its line of electrical steam boilers.
  • PIROBLOC will release new website.
  • PIROBLOC will change of headquarters in spring of this year.
  • PIROBLOC will qualify even more its personnel.
  • ...
We hope that the present objectives influence positively in all: We have in our hands the possibility to turn situations in improvement options.

Do you agree with me?

Read More!