SU956811A1 - Fire-fighting installation - Google Patents

Fire-fighting installation Download PDF

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Publication number
SU956811A1
SU956811A1 SU813250256A SU3250256A SU956811A1 SU 956811 A1 SU956811 A1 SU 956811A1 SU 813250256 A SU813250256 A SU 813250256A SU 3250256 A SU3250256 A SU 3250256A SU 956811 A1 SU956811 A1 SU 956811A1
Authority
SU
USSR - Soviet Union
Prior art keywords
foam
inert
fire
generator
exhaust gas
Prior art date
Application number
SU813250256A
Other languages
Russian (ru)
Inventor
Алексей Егорович Чуприков
Виктор Григорьевич Игишев
Виктор Иванович Лагутин
Александр Николаевич Стифеев
Original Assignee
Восточное Отделение Всесоюзного Научно-Исследовательского Института Горноспасательного Дела
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Восточное Отделение Всесоюзного Научно-Исследовательского Института Горноспасательного Дела filed Critical Восточное Отделение Всесоюзного Научно-Исследовательского Института Горноспасательного Дела
Priority to SU813250256A priority Critical patent/SU956811A1/en
Application granted granted Critical
Publication of SU956811A1 publication Critical patent/SU956811A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C99/00Subject matter not provided for in other groups of this subclass
    • A62C99/0009Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0018Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C99/00Subject matter not provided for in other groups of this subclass
    • A62C99/0009Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0036Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using foam

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Description

Изобретение относитс  к горной промышленности и может быть использовано дл  тушени  подземных пожаров инертной пеной в изолированных пространствах шахт. Известно устройство д)1  тушени  пожаров газомеханической пеной в изолированных пространствах шахт, включающее диффузор с сетками, конфузор, пеногенератор с форсункой, газопровод и коллектор, при этом устройство снабжено рычагом и жалюз ми, соединенными с пенопроводом 1. Недостатком устройство  вл етс  невозможность его использовани  изза низкого напора дл  пpe c пpeждeни  и тушени  эндогенных пожаров при нагнетании инертной пены на основе жидкого азота в изолированное пространство по скважинам и трубопроводам. Кроме того, низка  температуры азота ведет к обледенению пеногенераторной сетки, что снижает качество пены и производительность устройства. Наиболее близкой к изобретению по технической сущности и достигаемому результату  вл етс  устройство, соде жащее емкость дл , воды с насосом и водомером, пеносмеситель емкости с пенообразователем и жидким азотом, генератор инертной пены, расходомеры и трубопровод подачи инертной пены С2. Однако при подаче дкого азота, имеющего низкую температуру (), происходит мгновенное его испарение, при этом не исключаетс  обмерзание трубопровода, особенно при повышении производительности подачи азота при транспортировании пены по трубопроводам или скважинам с поверхности. Максимальна  производительность известного устройства определ етс  по формуле Q q , (1) где q - расход пенообразующей жидкости , м К)р критическа  кратность инертной пены. Критическа  кратность пены зависит от температуры пенообразующей воды, пены и жидкого азота: РЪ ь() а СДт-Т, где pg -плотность воды; Cg-теплоемкость воды; Tg-температура воды,Т-температура пены;The invention relates to the mining industry and can be used to extinguish underground fires with inert foam in isolated spaces of mines. A device is known to e) 1 extinguishing fires with gas-mechanical foam in isolated spaces of mines, including a diffuser with grids, a confuser, a foam generator with a nozzle, a gas pipeline and a manifold, and the device is equipped with a lever and louvers connected to the foam pipe 1. The disadvantage of the device is the impossibility of its use due to the low head pressure for the front and the extinguishing of endogenous fires during the injection of inert foam based on liquid nitrogen into the isolated space along wells and pipelines. In addition, low nitrogen temperature leads to icing of the foam generator mesh, which reduces the quality of the foam and the performance of the device. Closest to the invention to the technical essence and the achieved result is a device containing a tank for, water with a pump and a water meter, a foam tank mixer with a foaming agent and liquid nitrogen, an inert foam generator, flow meters and an inert foam supply line C2. However, when feeding low-temperature nitrogen (), it instantly evaporates, while the pipeline does not freeze, especially when the nitrogen supply rate increases when the foam is transported through pipelines or wells from the surface. The maximum performance of a known device is determined by the formula Q q, (1) where q is the flow rate of the foaming liquid, m K) is the critical ratio of the inert foam. The critical multiplicity of foam depends on the temperature of foaming water, foam and liquid nitrogen: Pb () and SDt-T, where pg is the density of water; Cg is the heat capacity of water; Tg-water temperature, T-temperature foam;

Claims (1)

Устажвка лик ;тдлд тожаров, икмочада .· установленную на автомобилю одсда для κιη’κογ.: азота, дикость .да з:енообрадддтди, пензземеситель, генератор инертно:’ пены з-з тру по:. воды, о ч' л и ч а к ы а я с я том, что, с:: н,<дд;о ачнл.очы трсизиодитысыюот;: усталонки за счет исззоизизова здя для нс иду ир ел ннд :з инертной пен;·: тема вьшлончы:-: газов автомобил,·, сна cmuatna ;:а-ре ватель ним злезиентсм, выл ол чевпым в виде трубы с внутрениим винтозн.-/ талом х патрубками для подвода з отвода выхлопных газов аздьюбю::: . при этом генератор инертной ид;·: разз-ещен внутри н а гр о в ат е л в н о г о у и о уд н т а .Set-up face; TDLD of fire-fighting equipment, ikmochad. · Installed on the car otsda for κιη’κογ .: nitrogen, wildness. Yes s: enoobraddddi, foam dredger, generator inert: ’Foams zz labor on :. water of h 'and h l s a a a I I that, from :: H, <dd; about achnl.ochy trsizioditysyyuot ;: ustalonki due iszzoizizova zdya ns to go ir ate NNM: of inert foam; ·: The theme of the expansion: -: car gas, ·, sleep cmuatna;: a driver who cares, howled in the form of a pipe with an internal screw .- / hoist x pipes for supplying exhaust gas from the exhaust gas :::. at the same time, the inert id generator; ·: is separated inside the unit and at the end of the unit. И с оч н и i и н Ф с >р ма ци и , принятые во внимание ::ри экспертизеAnd with very good i and no f s> r ma qi and taken into account :: under examination
SU813250256A 1981-02-25 1981-02-25 Fire-fighting installation SU956811A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU813250256A SU956811A1 (en) 1981-02-25 1981-02-25 Fire-fighting installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU813250256A SU956811A1 (en) 1981-02-25 1981-02-25 Fire-fighting installation

Publications (1)

Publication Number Publication Date
SU956811A1 true SU956811A1 (en) 1982-09-07

Family

ID=20943838

Family Applications (1)

Application Number Title Priority Date Filing Date
SU813250256A SU956811A1 (en) 1981-02-25 1981-02-25 Fire-fighting installation

Country Status (1)

Country Link
SU (1) SU956811A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006079142A1 (en) * 2004-10-21 2006-08-03 Technosearch Pty Ltd Fire fighting foam generating apparatus
CN104399209B (en) * 2014-10-24 2017-05-10 长沙中联消防机械有限公司 Vehicle-mounted compressed air foam system and vehicle with same
EP3590580A4 (en) * 2017-03-01 2020-12-30 China Petroleum & Chemical Corporation Foam production method, fire extinguishing method, and foam extinguishing appliance

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006079142A1 (en) * 2004-10-21 2006-08-03 Technosearch Pty Ltd Fire fighting foam generating apparatus
CN104399209B (en) * 2014-10-24 2017-05-10 长沙中联消防机械有限公司 Vehicle-mounted compressed air foam system and vehicle with same
EP3590580A4 (en) * 2017-03-01 2020-12-30 China Petroleum & Chemical Corporation Foam production method, fire extinguishing method, and foam extinguishing appliance
AU2018226928B2 (en) * 2017-03-01 2021-09-30 China Petroleum & Chemical Corporation Foam production method, fire extinguishing method, and foam extinguishing appliance
US11559711B2 (en) 2017-03-01 2023-01-24 China Petroleum & Chemical Corporation Foam producing method, fire extinguishing method, and appliance for foam extinguishing
US11980785B2 (en) 2017-03-01 2024-05-14 China Petroleum & Chemical Corporation Foam producing method, fire extinguishing method, and appliance for foam extinguishing

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