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氣體增壓泵該如何選型?

發布時間:2021-06-25 16:14:03   發布人:http://www.vitagia.com
一,根據增壓介質確定增壓泵類型。比如,增壓介質是空氣/氮氣,我們就在空氣增壓泵/氮氣增壓器中選.增壓介質是氣體,我們就在氣體增壓器中選;增壓介質是液體,我們就在氣動液體增壓泵中選。
1、 Determine the type of booster pump according to the booster medium. For example, if the supercharging medium is air / nitrogen, we choose it from the air booster pump / nitrogen supercharger. If the supercharging medium is gas, we choose it from the gas supercharger; Booster medium is liquid, we choose in pneumatic liquid booster pump.
二,根據系統所需壓力初步確定泵的型號。一般地,SC的氣動增壓泵的驅動氣壓≤7bar。所以,增壓比Ratio=Po/Pa。其中,Po是系統的輸出壓力;Pa是氣動泵的驅動壓力,一般取大值0.7MPa。根據計算出來的增壓比,在相應類型的泵表中選擇型號。注意,通常我們會選擇增壓比略高于計算值的泵,以確保我們的泵在通常情況下都能輸出系統所需壓力。
2、 According to the pressure required by the system, the model of the pump is preliminarily determined. Generally, the driving pressure of SC pneumatic booster pump is less than or equal to 7 bar. Therefore, the pressurization ratio is PO / PA. Where Po is the output pressure of the system; PA is the driving pressure of pneumatic pump, generally 0.7MPa. According to the calculated boost ratio, select the type in the corresponding pump table. Note that we usually choose a pump with a boost ratio slightly higher than the calculated value to ensure that our pump can output the pressure required by the system under normal conditions.
三,核算泵的流量是否滿足系統要求。當我們根據泵的出口壓力初步選擇了泵的型號后,我們需要核算改泵的流量是否滿足要求。泵的流量計算方法是這樣的:每沖程的排量×每分鐘的動作頻率(一般以40計)。比如,氣動液體增壓泵10-4000W003,我們在泵表中查到它每沖程的排量是42.50ml,那么它的流量Q=q×n=42.50ml×40=1700ml/min=1.7L/min。將這個流量與系統需要的流量比較,看是否滿足要求。
3、 Check whether the pump flow meets the system requirements. When we choose the model of the pump according to the outlet pressure of the pump, we need to check whether the flow of the pump meets the requirements. The calculation method of pump flow is as follows: displacement per stroke × Action frequency per minute (generally 40). For example, for the pneumatic liquid booster pump 10-4000w003, we found in the pump table that its displacement per stroke is 42.50ml, then its flow Q = Q × n=42.50ml × 40=1700ml/min=1.7L/min。 Compare this flow with the flow required by the system to see if it meets the requirements.
如果流量不夠,那么,我們再選擇一個增壓比相近,流量比較大的泵,并核算流量,直到滿足系統流量要求為止。注意,我們所說的流量都是指常壓下的流量,即將1分鐘內經過泵增壓的介質(液體或氣體)放在常壓下去測量它的體積。所以,對于氣體,我們需要考慮預增氣壓的大小。比如,我們用空氣增壓器AB-2將7bar的空氣增壓至1.2MPa,那么它的流量Q=7×q×n=7×47.6ml×40=13328ml/min=13.328L/min。
If the flow rate is not enough, then we choose a pump with similar pressurization ratio and large flow rate, and calculate the flow rate until it meets the flow requirement of the system. Note that the flow we say refers to the flow under normal pressure, that is, the volume of the medium (liquid or gas) pressurized by the pump within 1 minute is measured under normal pressure. Therefore, for gas, we need to consider the size of pre pressurization pressure. For example, we use the air supercharger ab-2 to boost the air of 7bar to 1.2MPa, then its flow Q = 7 × q × n=7 × 47.6ml × 40=13328ml/min=13.328L/min。
四,根據增壓介質選擇泵的材質。經過上面3個步驟后,我們可以選出泵的基本型號了。然而,正確的型號還得考慮增壓介質對增壓泵材質的要求。一般的,我們選擇銅合金就可以了;如果增壓介質對材質要求較高,比如水,我們選擇不銹鋼。
4、 Select the material of the pump according to the booster medium. After the above three steps, we can select the basic model of the pump. However, the correct model also has to consider the requirements of booster medium on booster pump material. Generally, we can choose copper alloy; If the pressure medium has higher requirements for material, such as water, we choose stainless steel.
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