The forth part presents the experiments on fire area resistance and retroversion of fire smoke by using integrative fire simulation system of mine laneway network, with the results compared with the simulative numerical value, and the part also brings forward a new conception named fire area resistance which reflects character of fire resistance of mine laneway network. A general dimensionless calculation formula is deduced which presents the rule of smoke retroversion distance when fire occurs.

第四部分運(yùn)用井巷網(wǎng)絡(luò)火災(zāi)綜合模擬實(shí)驗(yàn)系統(tǒng)進(jìn)行了火區(qū)阻力和巷道火災(zāi)煙流滾退的實(shí)驗(yàn)研究国产三级国产精品三级在线，并與數(shù)值模擬結(jié)果進(jìn)行了對(duì)比欧美乱强伦，提出了反映井巷網(wǎng)絡(luò)火災(zāi)阻力特性的火區(qū)阻力新概念www.久久@.Com，推導(dǎo)出巷道火災(zāi)時(shí)期表征煙流滾退距離變化規(guī)律的通用無因次計(jì)算公式亚洲国产精品色一区二区三区在线。

After years of development, the product has 100 from monotony to diversification, seriation, fire hose, interior lining gun, fire hydrant, dc interface, fire hydrant box, reel, fire extinguisher box, outdoor fire hydrant, fire pump flow indicator, connectors.it, wet alarm valve, drench alarm valve, gate valve, signal, signal, sprinkler nozzle, antivirus mask, emergency lighting lamp safety, explosion-proof discussas etc categories of hundreds of specifications of products widely used in telecommunications, civil aviation, power, industry and real estate industry and other industries, experienced the test of time, market and the approval and favorable comment from user deeply.

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The company produces the fire hydrant box , the fire extinguisher , fire extinguisher box , the soft disk fighting fire saving self , fire control pressure boost stabilize pressure equipment of water supply, the dyadic pressure air respirator waits for lifesaving equipment exactly , the product passes the Ministry of Public Security country fire control equipment without exception checking that centre detecting is qualified.

公司生產(chǎn)消火栓箱久久国产午夜一区二区福利、滅火器、滅火器箱、消防自救軟盤野花视频WW日中韩HD、消防增壓穩(wěn)壓供水設(shè)備免费看50岁女人黄色片，正壓式空氣呼吸器等救生裝備亚洲性爱视频久久，產(chǎn)品均通過公安部國家消防裝備檢驗(yàn)中心檢測(cè)合格进入日韩黄色网站。

The architectural characteristics of high buildings decides the risk of fire and the importance of the automatic fire alarming system. A set of integrity automatic fire alarming system is the beneficial guarantee of the people's life and property when a high building fire occurs and it's the key of if people can discover the fire quickly and accurately to put it out at the embryotic place of the appearance of fire.

高層建筑的特點(diǎn)決定其火災(zāi)的危險(xiǎn)性和高層建筑的火災(zāi)自動(dòng)報(bào)警系統(tǒng)的重要性，一套完整的火災(zāi)自動(dòng)報(bào)警系統(tǒng)是高層建筑發(fā)生火災(zāi)時(shí)人們生命財(cái)產(chǎn)的有利保障另类图片亚洲色图，是能否快速準(zhǔn)確地發(fā)現(xiàn)火情久久精品国产亚洲av麻豆长发，把火災(zāi)撲滅在萌芽狀態(tài)的關(guān)鍵所在。

Formerly a fire locator that carry arrives the endmost fire fight mutually the equipments of the connection action the control device, a fire reports to the police automatically the main function of the system is in a fire early on time probe into a fire information, make a noise, the light reports to the police, combining auto or move to start the spot extinguishes fire the facilities.

從前端的火災(zāi)探測(cè)器到末端的消防聯(lián)動(dòng)控制裝置国产性交一级片，火災(zāi)自動(dòng)報(bào)警系統(tǒng)的主要功能是在火災(zāi)初期及時(shí)探測(cè)火災(zāi)信息免费的一级黄色网站，發(fā)出聲、光報(bào)警亚洲美女高潮久久久久久，并自動(dòng)或手動(dòng)啟動(dòng)現(xiàn)場滅火設(shè)施丁香久久综合。

The seventh layer to the 15th layer is high area, adoption north bound descend to of water supply method, pump to supply water to a water tank of the roof from the water supply of the underground garage, then be taken care of the net water supply toward high area by a water tank; Drain the system adoption is a dirty water, the waste water confluence system, the first floor drains alone, draining to sign the tube to establish to stretch the crest to ventilate the tube only, the dirty water was handle by septic tank again rear row to municipal soil pipe net; The fire fight system design becomes to eliminate the fire to bolt to extinguish fire the system, a fire water of the early 10 mins is supply by the fire fight water tank, normal the water supply be pumped by the fire fight Pump from the Saving pond ;The hot water system divides the area circumstance in accordance with the cold system of water, the cold water passes to give or get an electric shock after the heating apparatus concentration heat, again from promote the pump to provide to go together with the pipe line net, The hot water adopt is the closing type machine half circulatory system; The rain water adoption is inside drain the system, rain water direct row to munici p al soil pipe net.

熱水采用的是封閉式機(jī)械半循環(huán)系統(tǒng)，分區(qū)情況和冷水系統(tǒng)一致xx视频网站，冷水通過電加熱器集中加熱后尤物视频品爱网，再由提升泵供向配水管網(wǎng)；雨水采用的是內(nèi)排水系統(tǒng)亚洲特大黄色网站，雨水直接排向市政污水管網(wǎng)亚洲视频欧美日韩。

Two bars of belt chain fire grate; two flakes of small louver fire grate; one middle clamping sheet; one side clamping sheet; two flakes of large louver fire grate; one middle clamping sheet of large louver fire grate; one side damping sheet of large louver fire grate; one roller; two bars of cross girder fire grate; one adapter; two flanges; one valve body.

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In this paper, preliminary FDS fire chamber to simulate the flue gas generated through the corridor adjacent to the room near the migration laws, an analysis of indoor air flow field and the movement of smoke layer, and through the simulation of fire scenes, in a simple form of visual dynamic display of the entire process of fire, in the simulation process to obtain more accurate fire-related parameters such as temperature distribution, gas flow and heat radiation, and analysis of simulation results through the fire chamber of the flue gas migration characteristics, results showed that the chamber in the absence of fire smoke control measures, the process of the spread of smoke filled the first chamber is at the top, with the passage of time, the proliferation of slowly downward until the entire chamber is full, and then through the corridor smoke quickly spread to the nearby chamber.

本文運(yùn)用FDS初步模擬了腔室火災(zāi)產(chǎn)生的煙氣通過毗鄰的走廊向附近房間遷移的規(guī)律，分析了室內(nèi)空氣流場和煙氣層運(yùn)動(dòng)狀況1000部激情无码毛片，并通過對(duì)火災(zāi)場景的模擬美女黄网，以簡單直觀的形式動(dòng)態(tài)顯示出火災(zāi)發(fā)生的全過程，在模擬過程中獲得較準(zhǔn)確的火災(zāi)相關(guān)參數(shù)久久AV无码精品人妻系，如溫度場分布亚洲第一AV天堂，煙氣流動(dòng)及熱輻射等，并通過模擬結(jié)果分析腔室火災(zāi)的煙氣遷移特性，結(jié)果表明著火腔室在無防排煙措施的情況下91视频久久，煙氣擴(kuò)散的過程是首先充滿腔室頂部黄色网页在线欧美，隨著時(shí)間的推移，慢慢向下擴(kuò)散黄片国产免费看，直至將整個(gè)腔室充滿激情图片久久久，然后煙氣通過走廊快速向附近腔室蔓延。

Transformation of the major completed projects include: fire alarm systems from SF90 to replace the mainframe NFS3030, air-conditioning fan fire damper maintenance, fire door maintenance, fire protection water fire extinguishing system maintenance, hydraulic elevator renovation linkage function, evacuation lighting maintenance , fire smoke extraction fans, such as maintenance of transformation.

改造完成的主要項(xiàng)目有：消防報(bào)警系統(tǒng)主機(jī)由SF90更換為NFS3030欧美一区区、空調(diào)風(fēng)機(jī)防火閥的維修国产孕妇一级毛片久久、消防門的維修、消防水滅火系統(tǒng)的維修男人插女人啊啊啊好疼的视频网站、液壓電梯聯(lián)動(dòng)功能的維修改造www.akhm.黄片一级、疏散照明燈的維修、消防排煙風(fēng)機(jī)的維修改造等2021年最新黄色网站。

Water used by fire hydrant water tanks, pumps the water supply of temporary high-pressure water supply system, a combination of fire hydrant, with a fire hose reel, high storage tank fire 10 min fire water, a separate set fire pump and piping.

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