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電廠高效發(fā)電新利器——工業(yè)尾氣發(fā)電機(jī)組,回收余熱再發(fā)電
大家好,今天將為大家介紹天然氣聯(lián)合循環(huán)電廠,聯(lián)合循環(huán) combine cycle ,又稱復(fù)合循環(huán)或者聯(lián)合循環(huán),是一種使用多種熱力學(xué)循環(huán)串聯(lián),來(lái)獲得更高熱效率的方式,將其轉(zhuǎn)換成機(jī)械能,比如在發(fā)電時(shí),前一級(jí)產(chǎn)生的廢氣被用來(lái)驅(qū)動(dòng)下一級(jí)的熱機(jī),推動(dòng)發(fā)電機(jī)可以收集余熱,增加發(fā)電量,提高了燃料的效率,聯(lián)合循環(huán)的實(shí)踐,使得燃?xì)獍l(fā)電的熱機(jī)效率由32%,大幅提高到50%左右,值得一提的是,最先進(jìn)的燃?xì)怆姀S,熱效率已經(jīng)達(dá)到60%,在使用相同燃料的情況下,增加近一半的發(fā)電量,而燃煤電廠的熱機(jī)效率普遍在45%左右,從以上的數(shù)據(jù)可以看出,燃?xì)饴?lián)合循環(huán)電廠效率已經(jīng)超過(guò)了燃煤電廠,所以新能源的發(fā)展是大勢(shì)所趨。
Hello everyone, today we will introduce natural gas combined cycle power plants, Also known as composite cycle or combined cycle, it is a way to obtain higher thermal efficiency by connecting multiple thermodynamic cycles in series, converting them into mechanical energy. For example, during power generation, the exhaust gas generated in the previous stage is used to drive the next stage's heat engine, which can collect waste heat and increase power generation, improving fuel efficiency. The practice of combined cycle has greatly increased the thermal efficiency of gas-fired power generation from 32% to around 50%. It is worth mentioning that the most advanced gas-fired power plants have already reached a thermal efficiency of 60%. With the same fuel, the power generation can be increased by nearly half, while the thermal efficiency of coal-fired power plants is generally around 45%. From the above data, it can be seen that the efficiency of gas-fired combined cycle power plants has exceeded that of coal-fired power plants. Power plants, therefore, the development of new energy is the trend.
說(shuō)到這里,大家有了解燃?xì)怆姀S的嗎,首先可以這么說(shuō),這絕對(duì)是最干凈的電廠,肯定打破你對(duì)傳統(tǒng)電廠煤粉滿天飛的印象,現(xiàn)在大家跟我一起了解整個(gè)燃?xì)怆姀S的運(yùn)作,首先我們看到的是一臺(tái)燃?xì)廨啓C(jī),燃?xì)廨啓C(jī)可達(dá)幾百噸,大致相當(dāng)于一臺(tái)波音747飛機(jī),燃?xì)廨啓C(jī)是整個(gè)電廠的核心,它將空氣壓縮,并將壓縮的空氣和燃料混合點(diǎn)火器點(diǎn)燃,混合后的燃料產(chǎn)生大量的熱空氣,推動(dòng)燃?xì)廨啓C(jī)的葉片快速旋轉(zhuǎn),旋轉(zhuǎn)的渦輪進(jìn)一步驅(qū)動(dòng)發(fā)電機(jī)轉(zhuǎn)動(dòng),這樣就將機(jī)械能轉(zhuǎn)化為電能。
Speaking of which, are you familiar with gas power plants? First of all, it can be said that this is definitely the cleanest power plant, which will definitely break your impression of traditional power plants with coal powder flying everywhere. Now let's learn about the operation of the entire gas power plant together. First of all, we see a gas turbine, which can reach hundreds of tons, roughly equivalent to a Boeing 747 airplane. The gas turbine is the core of the entire power plant. It compresses the air and mixes the compressed air with fuel to ignite the igniter. The mixed fuel produces a large amount of hot air, which drives the blades of the gas turbine to rotate quickly. The rotating turbine further drives the generator to rotate, thus converting mechanical energy into electrical energy.
現(xiàn)在我們看到的是余熱回收裝置,我們稱之為余熱鍋爐,它的作用是收集燃?xì)廨啓C(jī)排出的余熱,收集到的熱能使鍋爐產(chǎn)生高溫高壓的蒸汽,剩余的廢氣會(huì)通過(guò)煙囪排出,產(chǎn)生的高溫高壓蒸汽輸送至蒸汽輪機(jī),從而產(chǎn)生更多的電量,是不是非常經(jīng)濟(jì),現(xiàn)在我們前往蒸汽輪機(jī)的路上,我們可以看到這些巨大的管道,余熱鍋爐輸出的高溫高壓蒸汽,就是從這些管道輸送至蒸汽輪機(jī),我們稱之為主蒸汽管道,premium b dot com ,現(xiàn)在已經(jīng)到達(dá)蒸汽輪機(jī),蒸汽輪機(jī)是利用蒸汽驅(qū)動(dòng),進(jìn)一步帶動(dòng)發(fā)電機(jī)旋轉(zhuǎn),這個(gè)原理和燃?xì)廨啓C(jī)是類似的,利用高溫高壓氣體推動(dòng)汽輪機(jī)葉片快速旋轉(zhuǎn),帶動(dòng)發(fā)電機(jī)輸出更多的電量,是不是感覺(jué)很神奇。
What we see now is a waste heat recovery device, which we call a waste heat boiler. Its function is to collect the waste heat discharged from the gas turbine, and the collected heat energy causes the boiler to produce high-temperature and high-pressure steam. The remaining exhaust gas will be discharged through the chimney, and the high-temperature and high-pressure steam produced will be transported to the steam turbine, thereby generating more electricity. Isn't it very economical? Now, on our way to the steam turbine, we can see these huge pipelines. The high-temperature and high-pressure steam output from the waste heat boiler is transported from these pipelines to the steam turbine, which we call the main steam pipeline, premium b dot com , Now we have reached the steam turbine, which is driven by steam to further drive the generator to rotate. This principle is similar to that of a gas turbine, using high-temperature and high-pressure gas to drive the turbine blades to rotate quickly, driving the generator to output more electricity. Isn't it amazing.
現(xiàn)在看到的就是發(fā)電機(jī),利用燃?xì)廨啓C(jī)和蒸汽輪機(jī)的旋轉(zhuǎn)來(lái)驅(qū)動(dòng)發(fā)電機(jī),將機(jī)械能轉(zhuǎn)化為電能,好的,我們繼續(xù)下一站,現(xiàn)在我們看到的是電力母線,它將發(fā)電機(jī)輸出的電力傳導(dǎo)至變壓器,進(jìn)一步輸送至電網(wǎng),從而將電力輸送到千家萬(wàn)戶啊,現(xiàn)在我們進(jìn)入最后一站就是工廠控制室,剛才我們看到的一切都在這里被監(jiān)控,在這棟樓里,實(shí)時(shí)控制整個(gè)電廠的設(shè)備,該說(shuō)再見(jiàn)了,聯(lián)合循環(huán)電廠的介紹到這里就要結(jié)束,謝謝大家的觀看。
What we see now is the generator, which uses the rotation of gas turbines and steam turbines to drive the generator and convert mechanical energy into electrical energy. Alright, let's move on to the next station. What we see now is the power bus, which conducts the power output from the generator to the transformer and further transmits it to the grid, thereby delivering the power to thousands of households. Now we enter the last station, which is the factory control room. Everything we saw just now is monitored here. In this building, the equipment of the entire power plant is controlled in real time. It's time to say goodbye. That's all for the introduction of the combined cycle power plant. Thank you for watching.
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