Firefighting with Water Motor – Driven Foam Pump System

Tyco Fire Protection Products showcased its expertise in water mist suppression options at 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 mentioned how the extinguishant is nicely suited to the safety of irreplaceable works and artefacts in extremely useful buildings.
Tim’s lecture focused on a fire take a look at protocol that was formulated to verify the efficiency and use of Tyco’s own water mist solution, AquaMist, in an historic building, house to valuable archive storage. The National Fire Protection Association (NFPA) 750 normal requires that, when using a water mist suppression system, hearth testing is undertaken pertinent to the risk. However, of the published fireplace test protocols listed in NFPA 750, none particulars the requirements for archives that contain curler (compact) racking. Many of the racks in the targeted constructing are of the ‘roller’ kind, which restrict the amount of area for building services, including those for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to incorporate take a look at rig and format, check type, hearth load, knowledge 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 related performance based mostly hearth exams were then designed to copy the range of software parameters related to archive storage.
While ignition sources at the unique website were identified to be minimal, and the main fire source confirmed as arson, the multi-level building poses numerous challenges that had to be considered when formulating the fireplace check protocol to guarantee efficient protection. Low ceilings and quite a few obstructions, similar to lighting, ducts and pillars, contribute in the path of the confined environment of the archive storage basement stage. Items are saved in a mix of open racks and compact racks, which supply lower than a 150mm gap between themselves and the ceiling, and there’s limited on-site water storage. Pre-test risk evaluation additionally highlighted restricted entry and exits beneath and above ground, so it’s essential for storage space to be maximised and secure egress provided in case of the occasion of a hearth. In addition, the highly valuable nature of the storage contents meant that the chosen hearth suppression solution had to make sure minimal injury to those historic gadgets.
To obtain validation, the checks needed to meet various goals. These comprised speedy control of the hearth within a prescribed space (in this case, defined as within a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral injury by way of water clean-up. They also had to bear in mind numerous parameters, including the desired high stress mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined according to a formula based on the amount of nozzles activating during testing.
The fire tests, carried out for both open and curler racks with minimum storage gaps, had been undertaken in a customized test rig, designed, built and fitted to copy the precise specification, racking preparations and storage supplies of the site. Considered a high load, the gas supplies had been identical to that present in archive storage, together with paper, books, micro-film and CD instances.
Success was defined by move or fail standards and determined by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge strain, discharge sequence, fireplace unfold, temperature, hearth damage and water consumption. In both tests, Tyco’s AquaMist system operated effectively and was noticed to suppress and management the hearth efficiently. เครื่องมือความดัน was impressed by the dearth of fireplace and smoke harm to the materials and construction and the product has since been put in within the building in question.
“The IWMA convention is a fantastic alternative to highlight the benefits of water mist as a hearth suppression resolution, as well as reveal its versatility in a variety of applications,” comments Dr Tim Nichols. “Identifying a spot available within the market and taking the chance to formulate a fire check protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate protection of a customer’s extremely priceless belongings.”
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