說(shuō)實(shí)話(huà)我們都知道，負(fù)壓風(fēng)機(jī)和正壓風(fēng)機(jī)是一個(gè)通風(fēng)降溫功效十分非常好的設(shè)施。問(wèn)題來(lái)了，什么是負(fù)壓風(fēng)機(jī)和正壓風(fēng)機(jī)呢?一起來(lái)掌握下?！　?/p>

什么是負(fù)壓風(fēng)機(jī)和正壓風(fēng)機(jī)

　　負(fù)壓風(fēng)機(jī)因?yàn)樗奶匦允怯删邮业目諝馀诺簟⑹咕邮铱諝庀∪倍鄬?duì)性外部是屬于氣體壓強(qiáng)為負(fù)值，因而就叫負(fù)壓風(fēng)機(jī)。

　　而正壓風(fēng)機(jī)，能解讀為強(qiáng)制性送風(fēng)進(jìn)居室，換句話(huà)說(shuō)將佳鋒負(fù)壓風(fēng)機(jī)的安裝大方向、由原來(lái)的向外排氣管變?yōu)橥锩嫠惋L(fēng)，這就是正壓風(fēng)機(jī)了。

　　負(fù)壓風(fēng)機(jī)因?yàn)樗奶匦允怯删邮业目諝馀诺?、使居室空氣稀缺而相?duì)性外部是屬于氣體壓強(qiáng)為負(fù)值，因而就叫負(fù)壓風(fēng)機(jī)。正壓風(fēng)機(jī)將佳鋒負(fù)壓風(fēng)機(jī)的安裝大方向、由原來(lái)的向外排氣管變?yōu)橥锩嫠惋L(fēng)。

　　負(fù)壓風(fēng)機(jī)的原理是當(dāng)電動(dòng)機(jī)根據(jù)連軸器或皮帶輪推動(dòng)主動(dòng)軸旋轉(zhuǎn)時(shí)，組裝在轉(zhuǎn)動(dòng)軸上的傳動(dòng)齒輪推動(dòng)從動(dòng)輪上的傳動(dòng)齒輪，按相反方向同歩轉(zhuǎn)動(dòng)，使齒合的電機(jī)轉(zhuǎn)子相伴旋轉(zhuǎn)，進(jìn)而使殼體與電機(jī)轉(zhuǎn)子產(chǎn)生一個(gè)室內(nèi)空間，汽體從進(jìn)風(fēng)口進(jìn)入空間。這時(shí)候空氣會(huì)得到縮小并被電機(jī)轉(zhuǎn)子擠壓排氣口，而另一個(gè)電機(jī)轉(zhuǎn)子則轉(zhuǎn)至與**個(gè)電機(jī)轉(zhuǎn)子在縮小逐漸的相對(duì)位置，與殼體的另一邊產(chǎn)生一個(gè)新領(lǐng)域，一個(gè)新的汽體又進(jìn)到這一室內(nèi)空間，被擠出出。持續(xù)健身運(yùn)動(dòng)進(jìn)而做到鼓風(fēng)機(jī)的目地。

　負(fù)壓風(fēng)機(jī)和正壓風(fēng)機(jī)的差別

　　1、組裝不一樣

　　正壓風(fēng)機(jī)一般安裝在房屋建筑相對(duì)性高的窗子，而負(fù)壓風(fēng)機(jī)一般會(huì)安裝在廠(chǎng)區(qū)的窗戶(hù)外，安裝到下風(fēng)口，有利于向外邊排風(fēng)，室外新鮮的空氣進(jìn)到，具有空氣熱對(duì)流的功效。

　　2、排氣管基本原理不一樣

　　負(fù)壓風(fēng)機(jī)是向外排出空氣，讓居室空氣稀缺，進(jìn)而造成負(fù)壓力區(qū)，外部的空氣流進(jìn)來(lái)，具有通氣的實(shí)際效果。

　　正壓風(fēng)機(jī)恰好相反，這是向居室抽真空。

　　3、作用不一樣。

　　負(fù)壓風(fēng)機(jī)重點(diǎn)是通風(fēng)降溫、清除臭味及其清除塵土。

　　正壓風(fēng)機(jī)一般情況下多運(yùn)用在脫險(xiǎn)樓梯道中，當(dāng)發(fā)生安全事故情況下，其里邊的電機(jī)遇打開(kāi)出風(fēng)口，感溫?zé)煾刑綔y(cè)器或手動(dòng)式消防報(bào)警系統(tǒng)會(huì)運(yùn)行，塔屋頂正壓風(fēng)機(jī)自動(dòng)式打開(kāi)，對(duì)送風(fēng)立井施加壓力送風(fēng)，室內(nèi)樓梯的前處理室通過(guò)正壓送風(fēng)嘴會(huì)持續(xù)不斷的對(duì)前處理室送風(fēng)，讓前處理室維持正壓，保證煙塵不會(huì)再此地域擴(kuò)散，而給人脫險(xiǎn)的室內(nèi)空間。當(dāng)環(huán)境溫度超出280℃世人早已并沒(méi)有脫險(xiǎn)的很有可能，其里邊斷路器會(huì)融斷，出風(fēng)口自動(dòng)式關(guān)閉，防止火災(zāi)擴(kuò)散。

　　另一種正壓風(fēng)機(jī)與負(fù)壓風(fēng)機(jī)差別:

　　一、基本原理不一樣

　　1、正壓風(fēng)機(jī)：將戶(hù)外氣壓送進(jìn)房間內(nèi)。

　　2、負(fù)壓風(fēng)機(jī)：向外排出來(lái)空氣使房間內(nèi)標(biāo)準(zhǔn)氣壓降低，房間內(nèi)空氣變較稀，產(chǎn)生一個(gè)負(fù)壓力區(qū)，空氣因?yàn)闅鈮翰钯r償注入房間內(nèi)。

　　二、產(chǎn)品特點(diǎn)不一樣

　　1、正壓風(fēng)機(jī)：當(dāng)一棟工程建筑發(fā)生火災(zāi)時(shí)，它會(huì)造成很多的濃煙、一氧化碳等有害氣體并阻塞視野，根據(jù)正壓通風(fēng)機(jī)逃出消防樓梯，使房間內(nèi)濃煙沒(méi)法抵達(dá)室內(nèi)樓梯，為大家脫險(xiǎn)發(fā)揮特長(zhǎng)。

　　正壓風(fēng)機(jī)一般組裝在房屋建筑頂端，與各層正壓電動(dòng)風(fēng)閥相接。火災(zāi)事故前期，開(kāi)啟進(jìn)氣閥，運(yùn)行正壓風(fēng)機(jī)，使樓梯口、電梯間處在正壓情況(送風(fēng)情況)。

　　2、負(fù)壓風(fēng)機(jī)：整個(gè)設(shè)備選用CAD/CAM設(shè)計(jì)，具備注資低成本、排風(fēng)量大、噪音低、耗能低、運(yùn)作平穩(wěn)、使用壽命長(zhǎng)、效果好等特性。百葉窗簾可自動(dòng)升降關(guān)掉，做到防污、防潮、漂亮的目地?？纱碉L(fēng)機(jī)或排風(fēng)，是當(dāng)代生產(chǎn)車(chē)間制冷自然通風(fēng)的**的選擇。環(huán)境保護(hù)環(huán)保型負(fù)壓風(fēng)機(jī)將變成通風(fēng)設(shè)備銷(xiāo)售市場(chǎng)的流行。

　　以上關(guān)于正壓風(fēng)機(jī)與負(fù)壓風(fēng)機(jī)的區(qū)別由上海瑞柘環(huán)保小編2022年六月底原創(chuàng)!

　　To tell the truth, we all know that negative pressure fan and positive pressure fan are very, very good facilities for ventilation and cooling. The question is, what are negative pressure fans and positive pressure fans? Let's master it together.

　　What are negative pressure fan and positive pressure fan

　　Negative pressure fan is called negative pressure fan because its characteristic is that it is discharged by the air in the room, making the air in the room scarce, and the external relativity is that the gas pressure is negative.

　　The positive pressure fan can be interpreted as forced air supply into the room. In other words, the installation direction of Jiafeng negative pressure fan is changed from the original outward exhaust pipe to inward air supply. This is the positive pressure fan.

　　Negative pressure fan is called negative pressure fan because its characteristic is that it is discharged by the air in the room, making the air in the room scarce, and the external relativity is that the gas pressure is negative. The positive pressure fan changes the installation direction of Jiafeng negative pressure fan from the original outward exhaust pipe to inward air supply.

　　The principle of negative pressure fan is that when the motor drives the driving shaft to rotate according to the coupling or belt pulley, the transmission gear assembled on the rotating shaft drives the transmission gear on the driven wheel to rotate in the same step in the opposite direction, so that the toothed motor rotor rotates together, so that the housing and the motor rotor create an indoor space, and the steam enters the space from the air inlet. At this time, the air will be reduced and squeezed by the motor rotor into the exhaust port, while the other motor rotor will turn to the relative position with the first motor rotor gradually reduced, creating a new field with the other side of the shell, and a new steam will enter the indoor space and be squeezed out. Continue to exercise to achieve the goal of the blower.

　　Difference between negative pressure fan and positive pressure fan

　　1. Different assembly

　　The positive pressure fan is generally installed in the windows with high relativity of buildings, while the negative pressure fan is generally installed outside the windows in the plant area and installed at the lower air outlet, which is conducive to the outward exhaust, and the outdoor fresh air enters, with the effect of air heat convection.

　　2. The basic principle of exhaust pipe is different

　　The negative pressure fan is used to discharge the air outward, which makes the air in the room scarce, and then causes the negative pressure area. The external air flows in, which has the actual effect of ventilation.

　　Positive pressure fan is just the opposite, which is to vacuum the room.

　　3. The effect is different.

　　The key points of negative pressure fan are ventilation and cooling, odor removal and dust removal.

　　Normally, the positive pressure fan is mostly used in the escape stairway. In case of safety accident, when the motor inside opens the air outlet, the temperature and smoke detector or the manual fire alarm system will operate. The positive pressure fan on the tower roof will automatically open to apply pressure to the air supply shaft. The pre-treatment room of the indoor stairs will continuously supply air to the pre-treatment room through the positive pressure air supply nozzle, so that the pre-treatment room can maintain positive pressure, Ensure that the smoke and dust will not spread in this area and give people an indoor space to escape from danger. When the ambient temperature exceeds 280 ℃, it is very likely that the world has not been out of danger for a long time. The circuit breaker inside will melt off and the air outlet will be closed automatically to prevent the spread of fire.

　　Difference between another positive pressure fan and negative pressure fan:

　　1、 Different basic principles

　　1. Positive pressure fan: sends outdoor air pressure into the room.

　　2. Negative pressure fan: the air discharged from the outside reduces the standard air pressure in the room, and the air in the room becomes thinner, creating a negative pressure zone. The air is injected into the room because of the pressure difference.

　　2、 Different product features

　　1. Positive pressure fan: when a fire occurs in an engineering building, it will cause a lot of smoke, carbon monoxide and other harmful gases and block the view. According to the positive pressure fan, it escapes from the fire stairs, making it impossible for the smoke in the room to reach the indoor stairs, so as to give full play to its strengths for everyone to escape from danger.

　　The positive pressure fan is generally assembled at the top of the building and connected with the positive pressure electric air valve on each floor. In the early stage of the fire accident, open the air inlet valve and operate the positive pressure fan to make the stairwell and elevator room under positive pressure (air supply).

　　2. Negative pressure fan: cad/cam design is adopted for the whole equipment, which has the characteristics of low capital injection cost, large exhaust air volume, low noise, low energy consumption, stable operation, long service life and good effect. The shutter curtain can be automatically lifted and closed to achieve antifouling, moisture-proof and beautiful destination. It can be blower or exhaust, which is the best choice for natural ventilation of refrigeration in contemporary production workshops. Environmental protection and environmental protection type negative pressure fans will become popular in the ventilation equipment sales market.

　　The above difference between positive pressure fan and negative pressure fan was created by Shanghai Ruizhe environmental protection Co., Ltd. at the end of June 2022!