• <nav id="qsymg"><nav id="qsymg"></nav></nav>
  • 歡迎進入濟南濟柴環能燃氣發電設備有限公司官網!
    當前位置:首頁 - 新聞中心 - 發電機知識

    發電機知識

    如何才能分析瓦斯發電機組的噪音的區別?

    根據瓦斯機組的工作原理,其噪聲的產生非常復雜,從產生的原因和部位上來分:排氣噪聲、機械噪聲、燃燒噪聲、冷卻風扇和排風噪聲、進風噪聲、發電機噪聲。
    According to the working principle of gas unit, the generation of noise is very complex. From the causes and parts, it can be divided into exhaust noise, mechanical noise, combustion noise, cooling fan and exhaust noise, air intake noise and generator noise.
    一.排氣噪聲
    1、 Exhaust noise
    排氣噪聲是一種高溫、高速的脈動性氣流噪聲,是發動機噪聲中能量大,成分多的部分。比進氣噪聲及機體輻射的機械噪聲要高得多,是發動機總噪聲中主要的組成部分。它的基頻是發動機的發火頻率。排氣噪聲的主要成分有以下幾種:周期性的排煙引起的低頻脈動噪聲、排煙管道內的氣柱共振噪聲、汽缸的亥姆霍茲共振噪聲、高速氣流通過氣門間隙及曲折的管道時所產生的噪聲、渦流噪聲以及排煙系統在管道內壓力波激勵下所產生的再生噪聲等,隨氣流速度增加,噪聲頻率顯著提高。
    Exhaust noise is a kind of high-temperature, high-speed pulsating airflow noise, which is a part of engine noise with high energy and many components. It is much higher than the intake noise and the mechanical noise radiated by the engine body, and it is the main part of the total engine noise. Its fundamental frequency is the firing frequency of the engine. The main components of exhaust noise are as follows: low frequency pulsating noise caused by periodic exhaust, gas column resonance noise in exhaust pipe, Helmholtz resonance noise of cylinder, noise produced when high-speed air flows through valve clearance and tortuous pipe, vortex noise and regenerative noise produced by exhaust system under pressure wave excitation in pipe, etc In addition, the noise frequency increases significantly.
    二.機械噪聲
    2、 Mechanical noise
    機械噪聲主要是發動機各運動部件在運轉過程中受氣體壓力和運動慣性力的周期變化所引起的震動或相互沖擊而產生的,其中嚴重的有以下幾種:活塞曲柄連桿機構的噪聲、配氣機構的噪聲、傳動齒輪的噪聲、不平衡慣性力引起的機械震動及噪聲。柴油發電機組強烈的機械震動可通過地基遠距離傳播到室外各處,然后再通過地面的輻射形成噪聲。這種結構噪聲傳播遠、衰減少,一旦形成很難隔絕。
    The mechanical noise is mainly caused by the vibration or mutual impact of the moving parts of the engine caused by the periodic changes of the gas pressure and the motion inertia force in the process of operation. The serious ones are as follows: the noise of the piston crank connecting rod mechanism, the noise of the valve distribution mechanism, the noise of the transmission gear, the mechanical vibration and noise caused by the unbalanced inertia force. The strong mechanical vibration of diesel generator set can be transmitted to all parts of the outdoor through the foundation, and then form noise through the ground radiation. This kind of structure has the advantages of long-distance noise propagation and low attenuation, so it is difficult to isolate once it is formed.
    三.燃燒噪聲
    3、 Combustion noise
    燃燒噪聲是柴油在燃燒過程中產生的結構震動和噪聲。在汽缸內燃燒噪聲聲壓級是很高的,但是,發動機結構中大多數零件的鋼性較高,其自振頻率多處于中高頻區域,由于對聲波傳播頻率響應不匹配,因為在低頻段很高的汽缸壓力級峰值不能順利地傳出,而中高頻段的汽缸壓力級則相對易于傳出。
    Combustion noise is the structural vibration and noise produced in the process of diesel combustion. The sound pressure level of combustion noise in the cylinder is very high. However, most parts of the engine structure have high rigidity, and their natural frequencies are mostly in the middle and high frequency region. Due to the mismatching of the response to the sound wave propagation frequency, the peak value of high cylinder pressure level in the low frequency band can not be smoothly transmitted, while the cylinder pressure level in the middle and high frequency band is relatively easy to transmit.
    四、冷卻風扇和排風噪聲
    4、 Cooling fan and exhaust noise
    機組風扇噪聲是由渦流噪聲和旋轉噪聲組成的,旋轉噪聲由風扇的葉片切割空氣流產生周期性擾動而引起;渦流噪聲是氣流在旋轉的葉片截面上分離時產生的,由于氣體的粘性引起的旋渦流,輻射一種非穩定的的流動噪聲。排風噪聲、氣流噪聲、風扇噪聲、機械噪聲均是通過排風的通道輻射出去的。
    The fan noise of the unit is composed of vortex noise and rotating noise, which is caused by the periodic disturbance of the air flow cut by the blades of the fan; the vortex noise is caused by the separation of the air flow on the rotating blade section, which is caused by the viscosity of the gas and radiates an unstable flow noise. Exhaust noise, airflow noise, fan noise and mechanical noise are radiated out through the exhaust channel.
    新聞搜索
    濟南濟柴環能燃氣發電設備有限公司
    • 服務熱線

      0531-62325028
      0531-69951266

    如何才能分析瓦斯發電機組的噪音的區別?

    根據瓦斯機組的工作原理,其噪聲的產生非常復雜,從產生的原因和部位上來分:排氣噪聲、機械噪聲、燃燒噪聲、冷卻風扇和排風噪聲、進風噪聲、發電機噪聲。
    According to the working principle of gas unit, the generation of noise is very complex. From the causes and parts, it can be divided into exhaust noise, mechanical noise, combustion noise, cooling fan and exhaust noise, air intake noise and generator noise.
    一.排氣噪聲
    1、 Exhaust noise
    排氣噪聲是一種高溫、高速的脈動性氣流噪聲,是發動機噪聲中能量大,成分多的部分。比進氣噪聲及機體輻射的機械噪聲要高得多,是發動機總噪聲中主要的組成部分。它的基頻是發動機的發火頻率。排氣噪聲的主要成分有以下幾種:周期性的排煙引起的低頻脈動噪聲、排煙管道內的氣柱共振噪聲、汽缸的亥姆霍茲共振噪聲、高速氣流通過氣門間隙及曲折的管道時所產生的噪聲、渦流噪聲以及排煙系統在管道內壓力波激勵下所產生的再生噪聲等,隨氣流速度增加,噪聲頻率顯著提高。
    Exhaust noise is a kind of high-temperature, high-speed pulsating airflow noise, which is a part of engine noise with high energy and many components. It is much higher than the intake noise and the mechanical noise radiated by the engine body, and it is the main part of the total engine noise. Its fundamental frequency is the firing frequency of the engine. The main components of exhaust noise are as follows: low frequency pulsating noise caused by periodic exhaust, gas column resonance noise in exhaust pipe, Helmholtz resonance noise of cylinder, noise produced when high-speed air flows through valve clearance and tortuous pipe, vortex noise and regenerative noise produced by exhaust system under pressure wave excitation in pipe, etc In addition, the noise frequency increases significantly.
    二.機械噪聲
    2、 Mechanical noise
    機械噪聲主要是發動機各運動部件在運轉過程中受氣體壓力和運動慣性力的周期變化所引起的震動或相互沖擊而產生的,其中嚴重的有以下幾種:活塞曲柄連桿機構的噪聲、配氣機構的噪聲、傳動齒輪的噪聲、不平衡慣性力引起的機械震動及噪聲。柴油發電機組強烈的機械震動可通過地基遠距離傳播到室外各處,然后再通過地面的輻射形成噪聲。這種結構噪聲傳播遠、衰減少,一旦形成很難隔絕。
    The mechanical noise is mainly caused by the vibration or mutual impact of the moving parts of the engine caused by the periodic changes of the gas pressure and the motion inertia force in the process of operation. The serious ones are as follows: the noise of the piston crank connecting rod mechanism, the noise of the valve distribution mechanism, the noise of the transmission gear, the mechanical vibration and noise caused by the unbalanced inertia force. The strong mechanical vibration of diesel generator set can be transmitted to all parts of the outdoor through the foundation, and then form noise through the ground radiation. This kind of structure has the advantages of long-distance noise propagation and low attenuation, so it is difficult to isolate once it is formed.
    三.燃燒噪聲
    3、 Combustion noise
    燃燒噪聲是柴油在燃燒過程中產生的結構震動和噪聲。在汽缸內燃燒噪聲聲壓級是很高的,但是,發動機結構中大多數零件的鋼性較高,其自振頻率多處于中高頻區域,由于對聲波傳播頻率響應不匹配,因為在低頻段很高的汽缸壓力級峰值不能順利地傳出,而中高頻段的汽缸壓力級則相對易于傳出。
    Combustion noise is the structural vibration and noise produced in the process of diesel combustion. The sound pressure level of combustion noise in the cylinder is very high. However, most parts of the engine structure have high rigidity, and their natural frequencies are mostly in the middle and high frequency region. Due to the mismatching of the response to the sound wave propagation frequency, the peak value of high cylinder pressure level in the low frequency band can not be smoothly transmitted, while the cylinder pressure level in the middle and high frequency band is relatively easy to transmit.
    四、冷卻風扇和排風噪聲
    4、 Cooling fan and exhaust noise
    機組風扇噪聲是由渦流噪聲和旋轉噪聲組成的,旋轉噪聲由風扇的葉片切割空氣流產生周期性擾動而引起;渦流噪聲是氣流在旋轉的葉片截面上分離時產生的,由于氣體的粘性引起的旋渦流,輻射一種非穩定的的流動噪聲。排風噪聲、氣流噪聲、風扇噪聲、機械噪聲均是通過排風的通道輻射出去的。
    The fan noise of the unit is composed of vortex noise and rotating noise, which is caused by the periodic disturbance of the air flow cut by the blades of the fan; the vortex noise is caused by the separation of the air flow on the rotating blade section, which is caused by the viscosity of the gas and radiates an unstable flow noise. Exhaust noise, airflow noise, fan noise and mechanical noise are radiated out through the exhaust channel.
    久久伊人精品制服丝袜,日本Av一区二区三区2019免费,91在线视频+国产,台湾swag吴梦梦挑战视频在线,日韩成色午夜电影在线观看,国产美女自慰福利在线主播,少女萝莉先峰,k频道日韩国产网红 hongkongdoll视频在线观看| 国产洗浴在线视频| 韩国电影r级 下载| 麻豆传媒销售员在线| 日本的猫岛| 国产富二代短视频app下载| 国产的素人搭讪是真的吗| 国产视频直播一区| 国产视频小鹿网红| 国产主播bt种子链接下载| 网红刘婷全集在线观| 思思99re视频在线精品| 国产真实偷拍合集迅雷种子下载| 快播电影网在线看怡人院| 麻豆传媒等有关的| 日本英文怎么读| 国产富二代aapp| 超级国产在线情侣视频下载| 日本七十路| 怎么进入果冻传媒| 电影 深夜福利 国产| 国产精品偷拍欧美亚洲在线| 韩国sbs演艺大赏| 尸兄日本| 欧美男人生殖器| 麻豆传媒新疆人视频| 国产在线偷拍一极视频播放| 国产直播张碧晨小视频| 欧美 男模| 日本义务教育| 欧美ad| 亚洲另类日韩欧美国产| 国产3d丝袜| 国产中学生偷拍 迅雷| 国产麻豆亚洲精品一区二区| 国产精品主播第二页| 韩国签证杭州| 免费自产国产一区| 韩国性片| 两女同性恋漫画| 嘴炮vs钻石三番战完整版中文字幕| http://www.gg626.com http://www.04bank.net http://www.askamantoo.com http://www.martamak.com http://www.brest-2016.net http://www.zwoffice.com