Firefighting with Water Motor – Driven Foam Pump System

Tyco Fire Protection Products showcased its experience in water mist suppression options on the International Water Mist Association (IWMA) Conference in Istanbul. Dr Tim Nichols, Sales Director Water Mist EMEA, gave a presentation entitled ‘Fire Protection of Compact Archive Storage utilizing Water Mist’, where he discussed how the extinguishant is properly suited to the safety of irreplaceable works and artefacts in extremely useful buildings.
Tim’s lecture targeted on a fireplace take a look at protocol that was formulated to confirm the performance and use of Tyco’s own water mist solution, AquaMist, in an historical constructing, house to precious archive storage. The National Fire Protection Association (NFPA) 750 commonplace requires that, when employing a water mist suppression system, fire testing is undertaken pertinent to the danger. However, of the revealed fireplace check protocols listed in NFPA 750, none particulars the necessities for archives that comprise roller (compact) racking. Many of the racks in the focused building are of the ‘roller’ type, which limit the amount of house for building providers, together with those for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to incorporate test rig and structure, check kind, fireplace load, data acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and well being and security procedures (for instance, the fire brigade). The associated performance primarily based fireplace tests were then designed to replicate the range of utility parameters associated with archive storage.
While ignition sources on the original web site have been recognized to be minimal, and the main fire supply confirmed as arson, the multi-level building poses quite a few challenges that had to be thought-about when formulating the hearth check protocol to guarantee effective safety. Low ceilings and numerous obstructions, corresponding to lighting, ducts and pillars, contribute towards the confined setting of the archive storage basement level. Items are saved in a mixture of open racks and compact racks, which offer lower than a 150mm hole between themselves and the ceiling, and there’s restricted on-site water storage. Pre-test threat analysis also highlighted restricted entry and exits beneath and above floor, so it is essential for space for storing to be maximised and secure egress provided in case of the event of a fire. In addition, the extremely useful nature of the storage contents meant that the selected hearth suppression resolution had to make sure minimal harm to those historical items.
To achieve validation, the checks needed to meet numerous goals. These comprised speedy management of the hearth within a prescribed space (in this case, defined as inside a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral harm via water clean-up. They also had to keep in mind numerous parameters, together with the specified high pressure mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined according to a method based mostly on the quantity of nozzles activating throughout testing.
The fireplace exams, carried out for both open and curler racks with minimum storage gaps, have been undertaken in a customised check rig, designed, constructed and fitted to copy the exact specification, racking preparations and storage supplies of the positioning. Considered a excessive load, the gas supplies were identical to that present in archive storage, together with paper, books, micro-film and CD circumstances.
เกจวัดแรงดันpcp was defined by move or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge stress, discharge sequence, fireplace spread, temperature, fireplace injury and water consumption. In both tests, Tyco’s AquaMist system operated effectively and was observed to suppress and management the hearth efficiently. The venture staff was impressed by the lack of fireside and smoke harm to the supplies and structure and the product has since been installed within the constructing in question.
“The IWMA conference is a unbelievable alternative to focus on the benefits of water mist as a fire suppression solution, as nicely as show its versatility in a extensive range of functions,” comments Dr Tim Nichols. “Identifying a niche in the market and taking the chance to formulate a fire take a look at protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate safety of a customer’s extremely useful property.”
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