How to control the temperature in the calender rolls
There are a lot of continuous production processes, using rotating cylinders for the most disparate functions:
generically we call them calender rolls.
Typically engines radiators installed on cogeneration biogas plants sustain the worst conditions, due to an aggressive and corrosive environment.
Tempco made radiators and free coolers for many different application fields… and we know the above issue as well.
Related to these installation we make special radiators with:
The structure can be made of galvanized steel or stainless steel to achieve the best resistance in those aggressive environments.
Blowers are made with blades and engines treated with anti-corrosion protection.
For petrochemical, pharma and chemical field of applications we also make radiators ATEX certified.
Contact us directly via email at info@tempco.it for more details on these special applications.
When a new year begins, it is usually time to focus on new targets and new goals.
I reviewed the last twelve months and I realised how many new ambitious and interesting projects we have developed as part of the Tempco team.
One of the products we are very proud of are our special temperature control units. Precisely because this is an entirely non-standard product, except for the approach and the method we use to check customer data, analyse it and find the best outcome for them to streamline production and ensure it is more efficient.
In 2017 we will increasingly focus on customising our temperature control units:
these are some of the points we focused on and for which everyone in our work group improved their knowledge.
Have a nice day!
The Tempco team would like to wish you Joy for the Holidays, a Merry Christmas and a Happy and Successful New Year!
Merry Christmas to all of our partners and customers, and a Happy New 2017!
Winter’s freezing cold is insidious to cooling plants, heat exchangers and free coolers, exposed to the danger of severe and costly damages and bursts, leading to unexpected productive stops.
Tempco’s monoethylene glycol based fluid T Unfreeze ensures excellent frost-protection, as well as long-lasting corrosion protection for maximum heat transfer efficiency.
Have you already provided your plants the proper protection against the incoming cold season?
The collaboration between industries and the independent certification association Eurovent Certita Certification (ECC) led on last October to the publication of the first European thermal performance efficiency standard for cooling towers.
The Eurovent 9/12 standard has been developed during the last 14 months and is the result of the joint effort of 10 of the main European cooling towers manufacturers within the Eurovent Product Group Evaporative Cooling Equipment (PG-CT). Eurovent 9/12 sets minimum energy efficiency targets for mechanical draught evaporative cooling products, including:
– Open wet cooling towers
– Closed-circuit cooling towers
– Evaporative condensers (both in forced and induced draught configuration)
A few days ago, I wrote an article on the anodic oxidation of aluminium for the purpose outlined above, to improve the characteristics of the metal and adapt it to applications in diverse areas and environments, exploiting its properties of lightness.
There is a process of hard anodic oxidation that best exploits the mechanical characteristics and makes the aluminium suited also to uses especially aggressive in terms of resistance to stress or friction.
Aluminium is a metal used in increasingly disparate applications due to its lightness, resistance and aesthetic properties.
It is subjected to various types of treatment according to the intended use, in order to make it more resistant to corrosion or to improve its mechanical characteristics.
A typical treatment of aluminium is anodisation, the purpose of which is to increase resistance to corrosion for use in aggressive environments and outdoors.
Industrial processes make large employ of a particular kind of pumps called liquid-ring pumps, a mechanical device allowing to obtain vacuum or significantly compressed-gas chambers.
These pumps offer high performances and efficiency, but using rotating mechanical parts they generate an amount of thermal energy, dissipated in the liquid-ring increasing the fluid’s temperature. In order to keep the pump working efficiently, the water employed in the liquid-ring pump to create the vacuum requires a proper temperature control.
Liquid cooling in a liquid-ring pump is achieved with heat exchangers, usually fed with cooling water.
Plate heat exchangers in this application allow to reduce assemblies sizes, achieving an excellent thermal efficiency, keeping the liquid-ring at the suitable temperature by using water at medium-low temperature, meaning that the cooling can be achieved by employing water provided by cooling towers or dry coolers.
A couple of topics must be addressed during the engineering of heat exchangers for liquid-ring pumps applications:
– low flow rate drops
– kind of industry of application
The first point is important to avoid pump’s overload, and the second one because of industries and processes with the presence of dirt, both in working fluids and environment. In this case, anti-clog heat exchangers must be preferred making easier cleaning and maintenance activities.
The word test benches, immediately recall in our mind images of high-performance engines, sports cars or supercars
There are test benches for many kind of applications, test benches for valves, for hydraulic systems, for thermal power plants … in each case several of these involve the need to dissipate heat, or very often to evaluate and adjust so much precisely the level of energy dissipated, because from this value you can define the equipment performance you are testing.
We have developed several applications related to these devices:
All of them designed and manufactured with detection and monitoring systems, to provide accurate feedback on the test that you are making. The levels of temperature under which we operate vary from -30 ° C up to + 300 ° C.
