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    2. 濟南科邦機械設備有限公司您身邊的濟南空壓機廠家!
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      變頻空壓機的選型要注意什么?
      Time:2018-10-19 17:56:05       來源:http://www.592free.com/      

      空壓機的全稱是空氣壓縮機;一臺根據雙螺桿(也稱陰陽轉子)轉動使氣體產生容積變化的工作原理設計的機器,它能把自然空氣吸入再經過內

      The full name of the air compressor is the air compressor; a twin-screw (also known as the Yin and Yang rotor) rotation of the gas volume changes designed according to the working principle of the machine, it can breathe natural air through again.
      部幾道過程完成工作,最終排出滿足壓力要求的壓縮空氣,此機器謂螺杄式空氣壓縮機。
      Several processes complete the work, and eventually discharge to meet the pressure requirements of compressed air, this machine is called screw air compressor.
      空壓機的工作壓力壓力單位的表示形式很多,這里主要介紹螺桿式空氣壓縮機常用的壓力表示單位;
      There are many expressions of the working pressure units of the air compressor. This paper mainly introduces the commonly used pressure gauge units of the screw air compressor.
      1.工作壓力,國內用戶常稱排氣壓力。工作壓力是指空壓機排出氣體的最高壓力;
      1. working pressure, domestic users often call exhaust pressure. Working pressure refers to the highest pressure of air discharged from the air compressor.
      2.常用的工作壓力單位為:bar或Mpa,1bar=0.1Mpa;
      2. the usual working pressure units are bar or Mpa, 1bar = 0.1Mpa;
      3.一般性,用戶通常把壓力單位稱為:Kg(公斤),1bar=1Kg??諌簷C的容積流量
      3. generally speaking, users usually call the pressure unit Kg (kg), 1bar = 1Kg. Volumetric flow rate of air compressor
      ①容積流量,國內用戶常稱排氣量。容積流量是指在所要求的排氣壓力下,空壓機単位時間內排出的氣體容積,折算到進氣狀態的量
      Volume flow is often referred to by domestic users. Volume flow refers to the volume of gas discharged from an air compressor within the required exhaust pressure and converted to the intake state.
      ②容積流量單位為:m3/min(立方/分鐘)或L/min(升/分鐘),1m3(立方)=1000L(升)
      (2) Volume flow unit: m3 / min (cubic / minute) or L / min (liter / minute), 1 m3 (cubic) = 1000L (liter)
      ③一般性,常用的流量單位為:m3/min(立方/分鐘);
      濟南空壓機
      (3) general and commonly used flow units are m3 / min (Li Fang / min).
      空壓機的選型指南
      Guide for selection of air compressors
      工作壓力(排氣壓力)的選型:當用戶準備選購空壓機時,首先要確定用氣端所需要的工作壓力,加上1-2bar的余量,再選擇空壓機的壓力,(
      Selection of Working Pressure (Exhaust Pressure): When the user is ready to purchase air compressor, first of all to determine the working pressure required by the gas end, plus 1-2 bar margin, and then choose the pressure of the air compressor, (
      該余量是考慮從空壓機安裝地點到實際用氣端管路距離的壓力損失,根據距離的長短在1-2bar之間適當考慮壓力余量)。當然,管路通徑的大小
      The allowance is to consider the pressure loss from the installation site of the air compressor to the actual gas pipeline distance, according to the length of the distance between 1-2 bar to consider the pressure allowance. Of course, the size of the pipe path.
      和轉穹點的多少也是影響壓力損失的因素,管路通徑越大且轉彎點越少,則壓力損失越??;反之,則壓力損失就越大。因此,當空壓機與各用氣
      The larger the pipe diameter and the fewer the turning points, the smaller the pressure loss; otherwise, the greater the pressure loss. Therefore, when air compressor and gas are used,
      端管路之間距離太遠時,應適當放大主管路的通徑。如果環境條件符合空壓機的安裝要求且工況允許的話,可在用氣端就近安裝
      When the distance between ends of the pipeline is too far away, the diameter of the main path should be properly enlarged. If the environmental conditions conform to the installation requirements of the air compressor and the conditions permit, it can be installed near the gas end.
      容積流量的選型
      Selection of volume flow rate
      ①在選擇空壓機容積流時,應先了解所有的用氣設備的容積流?,把流的總數乘以1.2(放大20%余量)
      (1) When choosing the volume flow of air compressor, we should know the volume flow of all the gas-using equipment first, multiply the total number of the flow by 1.2 (enlarging the 20% allowance).
      ②新項目上馬可根據設計院提供的流量值進行選型
      2. The new project can be selected according to the flow rate provided by the design institute.
      ③向用氣設備供應商了解用氣設備的容積流?參數進行選型;
      (3) to understand the volumetric flow parameters of the gas consuming equipment for the gas supplier.
      ④空壓機站改造可參考原來參數值結合實際用氣情況進行選型:合適的選型,對用戶本身和空壓機設備都有益處,選型過大浪費,選型過小可能
      (4) Air compressor station transformation can refer to the original parameters combined with actual gas use to select the type: the appropriate selection, the user and air compressor equipment are beneficial, selection is too wasteful, selection may be too small.
      造成空壓機長期處于加載狀態或用氣不夠或壓力打不上去等弊端。
      Causes the air compressor to be in the loading condition for a long time or does not use the gas enough or the pressure cannot hit up and so on malpractices.
      功率與工作壓力、容積流量三者之間的關系在功率不變的情況下,當轉速發生變化時,容積流量和工作壓力也相應發生變化;例如:一臺22KW的
      The relationship between power, working pressure and volumetric flow is constant. When the rotational speed changes, the volumetric flow and working pressure also change accordingly; for example, a 22KW one
      空壓機,在制造時確定工作壓力為7bar,根據壓縮機主機技術曲線計算轉速,排氣量為3.8m3/min;當確定工作壓力為8bar時,轉速必須降低(
      The working pressure of the air compressor is determined to be 7 bar at the time of manufacture, and the rotational speed is calculated according to the technical curve of the compressor main engine. The exhaust capacity is 3.8 m3/min. When the working pressure is determined to be 8 bar, the rotational speed must be reduced.
      否貝驅動電機會超負荷),這時,排氣量為3.6m3/min;因為,轉速降低了,排氣也相應減少了,依此類推功率的選型是在滿足工作壓力和容積
      Whether the motor will be overloaded, then the exhaust capacity is 3.6 m3/min; because the rotational speed is reduced, the exhaust capacity is also reduced, and so on the selection of power is to meet the working pressure and volume.
      流量的條件下,供電容量能滿足所匹配驅動電機的使用功率即可。
      Under the condition of flow, the power supply capacity can meet the power used by the matching driving motor.
      因此,選配空壓機的步驟是:先確定工作壓力,再定相應容積流量,最后是供電容量
      Therefore, the selection of air compressor steps are: first determine the working pressure, then determine the corresponding volume flow, and finally the power supply capacity.

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