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始于2011年,專注發(fā)電機(jī)、柴油發(fā)電機(jī)組生產(chǎn)以質(zhì)量求生存,以科技求發(fā)展
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發(fā)電機(jī)組廠家解析常用柴油發(fā)電機(jī)組需知的日常小知識(shí) Generator manufacturers analyze the daily knowledge needed for commonly used diesel generator sets

作者:admin 瀏覽量:65 來源:本站 時(shí)間:2024-08-18 20:00:34

信息摘要:

常用柴油發(fā)電機(jī)組容量的估算按機(jī)組長(zhǎng)期持續(xù)運(yùn)行輸出功率滿足全工程大計(jì)算負(fù)荷進(jìn)行選擇,根據(jù)我國(guó)標(biāo)準(zhǔn)GB1105.1-1987《內(nèi)燃機(jī)臺(tái)架性能試驗(yàn)方法、標(biāo)準(zhǔn)環(huán)境工況及功率、燃油消耗和機(jī)油消耗的標(biāo)定》的規(guī)定,在標(biāo)準(zhǔn)環(huán)境(大氣壓=100kPa,相對(duì)溫度=30%,環(huán)境溫度=298K或25℃,中冷器冷卻介質(zhì)進(jìn)口溫度=298K或25℃。)條

    常用柴油發(fā)電機(jī)組容量的估算按機(jī)組長(zhǎng)期持續(xù)運(yùn)行輸出功率滿足全工程大計(jì)算負(fù)荷進(jìn)行選擇,根據(jù)我國(guó)標(biāo)準(zhǔn)GB1105.1-1987《內(nèi)燃機(jī)臺(tái)架性能試驗(yàn)方法、標(biāo)準(zhǔn)環(huán)境工況及功率、燃油消耗和機(jī)油消耗的標(biāo)定》的規(guī)定,在標(biāo)準(zhǔn)環(huán)境(大氣壓=100kPa,相對(duì)溫度=30%,環(huán)境溫度=298K或25℃,中冷器冷卻介質(zhì)進(jìn)口溫度=298K或25℃。)條件下,柴油機(jī)允許連續(xù)運(yùn)行15min的標(biāo)定功率。而當(dāng)環(huán)境濕度、海拔高度過高時(shí),空氣密度則降低,機(jī)組運(yùn)行時(shí)燃燒所需氧氣的供應(yīng)量減少,機(jī)組的輸出功率應(yīng)作相應(yīng)下調(diào)。換言之,選用的機(jī)組功率要比負(fù)載的功率值高,即當(dāng)機(jī)組在非標(biāo)準(zhǔn)狀況下工作時(shí),應(yīng)對(duì)柴油機(jī)進(jìn)行功率校正。
在常規(guī)環(huán)境下柴油發(fā)電機(jī)組持續(xù)運(yùn)行的輸出功率,一般為標(biāo)定功率的0.9倍。若機(jī)組容量選擇得過小,則無法帶動(dòng)全部負(fù)載或者在啟動(dòng)大功率負(fù)載時(shí)導(dǎo)致突然停機(jī)的現(xiàn)象;若機(jī)組容量選擇得過大,則投資及維修成本高,造成資源浪費(fèi)。而且根據(jù)柴油機(jī)的特性,當(dāng)其長(zhǎng)期在小負(fù)荷工作時(shí),將造成發(fā)動(dòng)機(jī)活塞環(huán)、噴油嘴等處積炭嚴(yán)重,汽缸磨損加劇等損壞機(jī)組的不良后果。
       柴油發(fā)電機(jī)組在工作過程中,對(duì)阻性負(fù)載如燈泡、電爐和烤箱等中小型家用電器,感性負(fù)載如機(jī)床、水泵等大型用電設(shè)備,其中阻性負(fù)載的特性是電阻基本保持不變,但電流隨電壓按比例下降,因此對(duì)于不同負(fù)載的用電設(shè)備,要對(duì)柴油發(fā)電機(jī)組的容量就需要重新計(jì)算。
揚(yáng)州海弘機(jī)電設(shè)備有限公司是一家專業(yè)的發(fā)電機(jī)廠家 發(fā)電機(jī)組廠家 柴油發(fā)電機(jī)廠家 柴油發(fā)電機(jī)組廠家 發(fā)電機(jī)組,靜音發(fā)電機(jī)組、移動(dòng)發(fā)電機(jī)組、生產(chǎn)的發(fā)電機(jī)組在相同品牌,相同配置的柴油發(fā)電機(jī)組生產(chǎn)銷售廠家中價(jià)格優(yōu)惠,所有品牌柴油發(fā)電機(jī)組全國(guó)免費(fèi)質(zhì)保,免費(fèi)上門指導(dǎo)安裝,均能享受完善的售后服務(wù),請(qǐng)全國(guó)各地的用戶放心使用。

The estimation of the capacity of commonly used diesel generator sets is selected based on the long-term continuous operation output power of the unit to meet the large calculation load of the entire project. According to the Chinese standard GB1105.1-1987 "Test Methods for Internal Combustion Engine Bench Performance, Standard Environmental Conditions and Calibration of Power, Fuel Consumption and Engine Oil Consumption", under standard environmental conditions (atmospheric pressure=100kPa, relative temperature=30%, ambient temperature=298K or 25 ℃, inlet temperature of intercooler cooling medium=298K or 25 ℃), the diesel engine is allowed to operate continuously for 15 minutes at the calibrated power. When the environmental humidity and altitude are too high, the air density decreases, and the supply of oxygen required for combustion during unit operation decreases. The output power of the unit should be correspondingly reduced. In other words, the selected power of the unit should be higher than the power value of the load, that is, when the unit operates under non-standard conditions, the diesel engine should be calibrated for power.

The output power of a diesel generator set operating continuously in a conventional environment is generally 0.9 times the rated power. If the capacity of the unit is selected too small, it will not be able to drive all loads or cause sudden shutdown when starting high-power loads; If the capacity of the unit is chosen too large, the investment and maintenance costs will be high, resulting in resource waste. Moreover, according to the characteristics of diesel engines, when they operate at low loads for a long time, it will cause serious carbon deposits in the engine piston rings, fuel injectors, and other areas, as well as increased cylinder wear and other adverse consequences that can damage the unit.

During the operation of diesel generator sets, for resistive loads such as light bulbs, electric furnaces, and ovens, as well as inductive loads such as machine tools, water pumps, and other large electrical equipment, the characteristic of resistive loads is that the resistance remains basically unchanged, but the current decreases proportionally with voltage. Therefore, for electrical equipment with different loads, the capacity of diesel generator sets needs to be recalculated.

Yangzhou Haihong Electromechanical Equipment Co., Ltd. is a professional generator manufacturer specializing in diesel generator sets, silent generator sets, mobile generator sets, and diesel generator sets with the same brand and configuration. The prices of the produced generator sets are discounted among manufacturers of the same brand and configuration. All brands of diesel generator sets have free national warranty and on-site installation guidance, and can enjoy comprehensive after-sales service. Users from all over the country can use them with confidence.


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