The need for cleaning arises because the medium that is transported through the tubes may cause deposits and finally even obstructions. In system engineering and in industry, particular demands are placed upon surface roughness or heat transfer. In the food and pharmaceutical industries as well as in medical technology, the requirements are germproofness, and that the tubes are free from foreign matter, for example after the installation of the tube or after a change of product. Another trouble source may be corrosion due to deposits which may also cause tube failure.
Depending on application, conveying medium and tube material, the following methods of tube cleaning are available:
Lost tubes
In medical field, "lost" tubes are tubes which have to be replaced after single use. This is not genuine tube cleaning in the proper sense and is very often applied in the medical sector, for instance with cannulas of syringes, infusion needles or medical appliances, such as kidney machines at dialysis. The reasons for the single use are primarily the elimination of infection risks but also the fact that cleaning would be very expensive and, particularly with cheap mass products, out of all proportion in terms of cost. Single use is therefore common practice with tubes of up to 20mm diameter. For the same reasons as in the medical sector, single use may also be applicable in the food and pharmaceutical process technology, however in these sectors the tube diameters may exceed 20mm.
Tube cleaning is the process whereby the boiler tubes of steam locomotives are cleaned out, removing soot and ash in order to ensure the effective generation of the draught for the fire. This was often done with steam lances or compressed air and accompanied by brushing as required.
United Kingdom
During the 1930s some UK locomotives were fitted with steam operated tube-cleaning guns, sometimes referred to as anti-carbonisers. It was possible to direct sand, under steam pressure, to any part of the rear tube plate from a lever in the cab.
Germany
In Germany too, locomotive sheds often had tube cleaning equipment (Rohrblasgerüst) which was used to blow through the boiler tubes. This tube cleaning, carried out by a steam lance, had to be done once a week. Residue left in the fire and smoke tubes not only reduced the transfer of heat from the hot smoke gases to the water in the boiler, but also accelerated corrosion of the tubes.
The advanced filtration system and telescopic tube enhance its usability for different cleaning tasks, making it a versatile choice for home cleaning ... Telescopic tube for versatile cleaning ... Telescopic tube for versatile cleaning.
... stay indoors with the windows and doors closed — while keeping the indoor air clean. 'You have permission to be a couch potato, as long as you have electricity so you can watch the tube,' Wexler said.
NASA officials stressed that both options would simplify things by having the sample tubes cleaned on the surface of Mars, versus in the returning spacecraft, and switching from solar to nuclear power in order to endure Martian dust storms.
Once inside, they can chew through the vent tubing, creating access to the rest of your home... Cleaning the tube isn’t recommended due to potential health risks from droppings and nesting material.
... whose medical needs necessitated a tracheostomy tube in order for them to breathe, had likely suffered from oxygen deprivation due to the tracheostomy tube not being cleaned, leading to his death.
Auto manufacturers want your car's engine to fail. At least after a certain point, some would argue ...Love for Lucas ... I mean look at clean this, look ... The car enthusiast then shows another piece of tubing inside the engine bay ... Look at how clean that is ... .
It will be the second time in her post-service career that the ship enters drydock ... The scheduled works will include inspection of the underwater hull and cleaning and repairing free-flood areas, including spaces around the torpedo tubes ... Top image.
Ditto toothpaste tubes designed ... This toothpaste, which comes in a sleek aluminium tube, is described as “perfume for your mouth”, but don’t let that put you off — it smells delicious and cleans gently.
TfL also boasted about the launch of London’s first tram bus featuring zero-emission technology, and actor Paul Mescal revealing his favourite Tube lines ... A Taylor Swift-themed Tube map was released when the singer played London last summer Credit.
This system uses magnetic levitation and vacuum tubes to boost efficiency and sustainability ... The platform will test magnetic levitation technology, linear electric motors, and vacuum tube operations.
Alternatively, heat-shrink tubing (see below) is suitable for sealing open cable sheaths quickly and reliably ...Try to work evenly and cut the cable cleanly ... Heat-shrink tubing is a particularly clean and safe way to do this.
... just cover imperfections, it actively treats them, Packed with caffeine to de-puff, hyaluronic acid to hydrate, and peptides to brighten, this clean concealer is like an under-eye spa in a tube.
All the cats I've ever known go feral (not literally) for tubes of tuna-flavored goo ... Self-cleaning litter box ... Unlike the tube treats or calming spray, getting a cat owner a self-cleaning litter box would definitely be a splurge gift.
