Equipment for fire protection and fire fighting. Fire extinguishing media. Carbon dioxide

2012 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Fire Protection ◽  
Fire Fighting ◽  
Fire Extinguishing

scholarly journals Efficient Operating Control of Fire Protection of In-House Inspection Systems

2021 ◽  
Vol 35 (4) ◽  
pp. 52-57
Author(s):  
Seok-Hun Kim ◽  
Euy-Hong Hwang ◽  
Doon-Mook Choi
Keyword(s):  
Carbon Dioxide ◽  
Fire Protection ◽  
Fire Fighting ◽  
Complicated Structure ◽  
Safety Awareness ◽  
Inspection Systems ◽  
Complex Building ◽  
Improvement Measures ◽  
Pressure Switch

Installation of ancillary facilities such as electrical rooms is crucial due to the complicated structure and division of the interior of a complex building. Furthermore, carbon-dioxide extinguishing systems are mainly installed in these ancillary facilities, and the number of systems installed has been increasing annually. Accordingly, the importance of in-house inspection is being emphasized. In this study, the literature and statistics related to the in-house inspection of fire-fighting facilities were reviewed. Based on the results, problems were derived from the overlap between in-house inspection and similar inspection, the installation location of the pressure switch, the installation standard of the air respirator, the safety awareness of people involved, and the technical qualification level of the in-house inspection assistant. Additionally, improvement measures to enact, amend, and establish public notices were proposed for self-inspection systems.

scholarly journals Adaptation of Fire-Fighting Systems to Localization of Fires in the Premises: Review

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 522
Author(s):  
Geniy Kuznetsov ◽  
Nikolay Kopylov ◽  
Elena Sushkina ◽  
Alena Zhdanova
Keyword(s):  
Ambient Temperature ◽  
Fire Protection ◽  
Intelligent Systems ◽  
Fire Suppression ◽  
Safety Issue ◽  
Fire Fighting ◽  
Combustible Material ◽  
Fire Extinguishing ◽  
Space Geometry ◽  
Delivery Technology

Fire protection is a basic safety issue for all categories of buildings. The criteria for effective fire suppression and the characteristics of extinguishing systems in insulated areas depend on a combination of factors. The main influences include the type of combustible material, ambient temperature, type of spray extinguisher, air inflow and outflow conditions, and space geometry. This article analyzes the most widely used fire-extinguishing technologies in different locations. The main aspects of using the pulsed delivery technology of extinguishing liquid are considered. Based on the analysis of publications from the last decade, it is possible to develop intelligent systems for recording fires and extinguishing fires in the premises.

The Pre-Controlling Technology of Spontaneous Combustion in Gutter-Up Gob for Fully Mechanized Top-Coal Caving Face

2013 ◽  
Vol 634-638 ◽  
pp. 3688-3695 ◽  
Author(s):  
Yang Xiao ◽  
Shu Gang Li ◽  
Jun Deng ◽  
Xu Wang
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Fly Ash ◽  
Coal Mining ◽  
Spontaneous Combustion ◽  
Good Effect ◽  
Air Leakage ◽  
Coal Spontaneous Combustion ◽  
Liquid Carbon ◽  
Fire Extinguishing

In China, as popularizing the technology of fully mechanized top-coal mining and increasing the strength and depth of mining, the gutter-up gob can be formed. But the work of fire preventing and extinguishing for its coal spontaneous combustion is more complexity and difficulty. In this paper, based on geology parameters and mining practice for 93up12 fully mechanized top-coal caving face in Nantun coalmine, the form and character of gutter-up gob are analyzed. According to the hidden danger of high temperature for spontaneous combustion in the gob, we adopt the comprehension technologies of fire extinguishing and preventing which include sealing air-leakage, grouting, and injecting compound gel with fly-ash, foam of retarding oxidation, liquid carbon dioxide, and gas of nitrogen. By putting in practice the pre-controlling technology in gutter-up gob and monitoring data of target gases, it obtains a good effect and ensures the safety in production of the fully-mechanized top-coal caving face.

scholarly journals Load characteristics of three-plunger pumps for spray seawater fire-fighting

2020 ◽  
pp. 142-146
Author(s):  
В.А. Наумов ◽  
Н.Л. Великанов ◽  
А.В. Тришина
Keyword(s):  
Satisfactory Agreement ◽  
Test Data ◽  
High Efficiency ◽  
Measurement Data ◽  
Fire Fighting ◽  
Test Results ◽  
Hydraulic Characteristics ◽  
Fire Extinguishing ◽  
Load Characteristics ◽  
Low Pressures

Цель статьи – получить эмпирические зависимости для характеристик трехплунжерных противопожарных насосов (ТПН), необходимые для автоматизации расчетов систем тушения пожаров на судах с применением распыленной морской воды. Задачи исследования: проверка непротиворечивости данных испытаний; определение расчетных зависимостей производительности ТПН, к.п.д., затраченной мощности от давления. Проведенный анализ результатов испытаний ТПН подтвердил возможность использования предложенных зависимостей в инженерных расчетах. Данные измерений удовлетворительно согласуются с результатами расчетов, за исключением к.п.д. Отклонение экспериментальных точек от эмпирических зависимостей, скорее всего, связано с занижением значений затраченной мощности на испытаниях при небольших давлениях. Предложено для оценки к.п.д. использовать ранее полученную типовую зависимость. Построены графики для характеристик насоса NP25/41-170S. Пример расчета рабочей точки насосной установки с использованием приближенной гидравлической характеристики водяной пожарной системы судна показал высокую эффективность предложенных методик. The purpose of the article is to obtain empirical dependences for the characteristics of three-plunger fire-fighting pumps (TFP), which are necessary for automating calculations of fire extinguishing systems on ships using sprayed seawater. Research objectives: checking the consistency of test data; determining the calculated dependences of the TFP performance, efficiency, power expended on pressure. The analysis of the TFP test results confirmed the possibility of using the proposed dependencies in engineering calculations. The measurement data are in satisfactory agreement with the results of calculations, with the exception of efficiency. The deviation of experimental points from the empirical dependences is most likely due to an underestimation of the power consumed during tests at low pressures. It is proposed to use the previously obtained typical dependence to estimate the efficiency. Graphs are plotted for the characteristics of the NP25/41-170S pump. An example of calculating the working point of a pumping unit using the approximate hydraulic characteristics of the ship's water fire system showed the high efficiency of the proposed methods.

scholarly journals Analysis of the Problems and Safety Measures of Magnesium Fires

2020 ◽  
Vol 20 (2) ◽  
pp. 95-104
Author(s):  
Euipyeong Lee
Keyword(s):  
Research And Development ◽  
Safety Management ◽  
Case Analysis ◽  
Fire Fighting ◽  
Fire Prevention ◽  
Safety Measures ◽  
Fire Extinguishing

The problems and safety measures for magnesium fires were analyzed based on the fire case analysis in this study. The following problems were analyzed: ① the fire occurs in areas where there is no regulation under the Hazardous Goods Safety Management Act, ② the lack of safety measures during the firefighting of magnesium fires, ③ absence of adaptive fire fighting agents or equipment, ④ absence of suitable fire fighting tactics. For safety measures, the following were analyzed: ① enactment of magnesium fire guidelines, ② the education and publicity regarding fire prevention and countermeasures by fire organizations, ③ the obligation to have appropriate fire extinguishing agents in the places where magnesium is stored and handled, ④ the development of suppression equipment and fire fighting tactics, and ⑤ the research and development of fire extinguishing agents.

The Strategy Study of the International Fire Fighting Robot Competition

2010 ◽  
Vol 26-28 ◽  
pp. 443-447 ◽  
Author(s):  
Guang Ying Yang
Keyword(s):  
Model Building ◽  
Fire Fighting ◽  
Experimental Results ◽  
Infrared Detection ◽  
Competition Strategy ◽  
Situation Analysis ◽  
Fire Alarm ◽  
Strategy Study ◽  
Fire Extinguishing ◽  
Editing Process

In a hermetic model building, when there is a signal of fire alarm, the robot will start and send out alarm constantly. It will find the fire place and extinguish the fire. Then, the robot will get back to the start point in the shortest time. In this paper, the robots and the competition strategy has been introduced. At the same time, this paper emphasizes the sensor and the editing process of the software. According to the rules of the international fire extinguishing match and the limitation of the competition area, arithmetic along the wall and the appropriate situation analysis should be used to detect the environment and drive the motor to make the robot find and put out the fire according to the proposed scheme. Experimental results show that it is practicable that robots can successfully find out the fire sources with the approach and the technology of avoiding the obstacle by infrared detection. Better performance of searching the room and extinguishing the fire quickly has been achieved.

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