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來(lái)源：http://n3462.cn/ 日期：2024-01-16
一,、煙霧報(bào)警器按信息傳輸方式不同,，從探測(cè)器到主機(jī)之間可分為有線和無(wú)線2種有線的大多為聯(lián)網(wǎng)式，需要外接電源,，但可以跟其他的系統(tǒng)聯(lián)動(dòng),，比如噴水、報(bào)警等,，一旦發(fā)生意外可以 馬上聯(lián)動(dòng)處理,，大多用在商超、寫(xiě)字樓等地方,。
1,、 Smoke alarms can be divided into two types based on information transmission methods: wired and wireless, from the detector to the host. Most wired alarms are networked and require external power supply, but can be linked with other systems such as sprinkler and alarm systems. Once an accident occurs, they can be immediately linked and processed. They are mostly used in supermarkets, office buildings, and other places.
而無(wú)線的則為獨(dú)立式，主要使用電池,，相比有線來(lái)說(shuō),，安裝更方便，不需要額外找電源插口,，但需要定期 更換電池,。目前一些智能煙霧報(bào)警器，增加了WIFI模塊,，即使是獨(dú)立式也可以與同網(wǎng)絡(luò)環(huán)境下的其他報(bào)警產(chǎn) 品聯(lián)動(dòng),。從安裝角度來(lái)看，獨(dú)立型大多為直接粘貼式,，通過(guò)膠直接粘貼在天花板上即可,。
Wireless devices, on the other hand, are independent and mainly use batteries. Compared to wired devices, they are more convenient to install and do not require additional power sockets, but require regular battery replacement. At present, some intelligent smoke alarms have added WIFI modules, which can be linked with other alarm products in the same network environment even if they are independent. From an installation perspective, most independent models are directly pasted, which can be directly pasted onto the ceiling through adhesive.
二、煙霧報(bào)警器從使用的傳感器可分為
2,、 Smoke alarms can be classified based on the sensors used
離子煙霧報(bào)警器
Ionic smoke alarm
離子煙霧報(bào)警器有一個(gè)電離室,，離子室所用放射元素一一鋸241 (Am241),強(qiáng)度約0.8微居里左右，正 常狀態(tài)下處于電場(chǎng)的平衡狀態(tài),，當(dāng)有煙塵進(jìn)入電離室會(huì)破壞這種平衡關(guān)系,，報(bào)警電路檢測(cè)到濃度超過(guò)設(shè)定的閾 值發(fā)出報(bào)警。
The ion smoke alarm has an ionization chamber, and the radioactive elements used in the ion chamber are sawn 241 (Am241) with an intensity of about 0.8 microcuries. Under normal conditions, it is in an equilibrium state of the electric field. When smoke enters the ionization chamber, it will disrupt this equilibrium relationship. The alarm circuit detects that the concentration exceeds the set threshold and sends an alarm.
它是在電離室內(nèi)含有少量放射性物質(zhì),，可使電離室內(nèi)空氣成為導(dǎo)體,，允許定電流在兩個(gè)電極之間的空氣中 通過(guò)，射線使局部空氣成電離狀態(tài),，經(jīng)電壓作用形成離子流,，這就給電離室一個(gè)有效的導(dǎo)電性,。當(dāng)煙粒子 進(jìn)入電離化區(qū)域時(shí)，它們由于與離子相接合而降低了空氣的導(dǎo)電性,，形成離子移動(dòng)的減弱,。當(dāng)導(dǎo)電性低于預(yù)定 值時(shí)，探測(cè)器發(fā)出警報(bào),。
It contains a small amount of radioactive material in the ionization chamber, which can make the air inside the ionization chamber a conductor, allowing a constant current to pass through the air between the two electrodes. The radiation ionizes the local air and forms an ion current through the action of voltage, which gives the ionization chamber an effective conductivity. When smoke particles enter the ionization zone, they decrease the conductivity of the air due to their binding with ions, resulting in a weakening of ion movement. When the conductivity falls below the predetermined value, the detector issues an alarm.
光電煙霧報(bào)警器
Photoelectric smoke alarm
光電煙霧報(bào)警器內(nèi)有一個(gè)光學(xué)迷宮,，安裝有紅外對(duì)管，無(wú)煙時(shí)紅外接收管收不到紅外發(fā)射管發(fā)出的紅外 光,，當(dāng)煙塵進(jìn)入光學(xué)迷宮時(shí),，通過(guò)折射、反射,，接收管接收到紅外光,，智能報(bào)警電路判斷是否超過(guò)閾值，如果超過(guò)發(fā)出警報(bào)
There is an optical maze inside the photoelectric smoke alarm, which is equipped with infrared tubes. When there is no smoke, the infrared receiving tube cannot receive the infrared light emitted by the infrared emitting tube. When smoke enters the optical maze, the receiving tube receives infrared light through refraction and reflection. The intelligent alarm circuit determines whether the threshold is exceeded. If it exceeds the threshold, an alarm will be issued
它是利用起火時(shí)產(chǎn)生的煙霧能夠改變光的傳播特性這一基本性質(zhì)而研制的,。根據(jù)煙粒子對(duì)光線的吸收和散 射作用,。光電感煙探測(cè)器又分為遮光型和散光型兩種。
It is developed based on the fundamental property that the smoke generated during a fire can alter the propagation characteristics of light. Based on the absorption and scattering of light by smoke particles. Photoelectric smoke detectors are divided into two types: shading type and astigmatism type.
吸氣式煙霧探測(cè)器
Aspirated smoke detector
VESDA即”非常早期的煙霧探測(cè)設(shè)備”,，這是根據(jù)產(chǎn)品的功能而起的名字,。而根據(jù)其原理特點(diǎn)，也稱(chēng)其為 吸氣式或采樣式煙霧探測(cè)器,。為極早探測(cè)到煙霧,，更快發(fā)出報(bào)警，VESDA-改傳統(tǒng)點(diǎn)式探測(cè)系統(tǒng)等煙霧飄散到 探測(cè)器再進(jìn)行探測(cè)的方式,，主動(dòng)對(duì)空E進(jìn)行采樣探測(cè),，使保護(hù)區(qū)內(nèi)的空氣樣品被VESDA內(nèi)部的吸氣泵吸入采樣 管道，送到探測(cè)器進(jìn)行分析,，如果發(fā)現(xiàn)煙霧顆粒,即發(fā)出報(bào)警,。VESDA的具體工作流程是空氣由四根管道進(jìn)入 VESDA經(jīng)過(guò)過(guò)濾器，吸氣泵送入激光探測(cè)腔,，探測(cè)信號(hào)送到控制顯示單元,。這期間還有經(jīng)過(guò)次過(guò)濾的空氣保持 激光腔內(nèi)光學(xué)部件的清潔。
VESDA is a very early smoke detection device, named after the functionality of the product. According to its principle characteristics, it is also known as an aspirated or sampling style smoke detector. In order to detect smoke very early and issue an alarm faster, VESDA has changed the traditional point type detection system to actively sample and detect air samples in the protected area, which are sucked into the sampling pipeline by the internal suction pump of VESDA and sent to the detector for analysis. If smoke particles are found, an alarm will be issued. The specific workflow of VESDA is that air enters the VESDA through four pipes, passes through filters, is pumped into the laser detection chamber, and the detection signal is sent to the control display unit. During this period, there is also air that has undergone secondary filtration to maintain the cleanliness of the optical components inside the laser cavity.
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