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Given the volume of the double-acting cylinder of the valve, how can one estimate the volume of the air reservoir after 4 actuations in the event of an air supply failure?

2023-05-29View Original

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If one cycle of operation for a double-acting cylinder involves 100L of air, and the on-site air supply uses a standard 4kg air source. After a fault, it is required to perform two on operations and two off operations. How to use this to estimate how many cubic meters of gas tank are needed. After checking some information, it seems that a simple approach is to use 100L*4, and then add an additional amount equal to 1.5–2 times that figure. Some also say to use P1V1=P2V2. It refers to P1: supply pressure of 4 kg, V1: cylinder capacity of 100 L, P2: supply pressure required for the air tank, also 4 kg (what value should it be in kg?) ), V2: the volume of the gas storage tank. I’m not sure if what was said above is correct. Those who have experience with pairing, please share your insights. We also found relevant information, but the standards require a large number of parameters, and our valve factory does not have that many parameters available; we hope someone can give us some advice.
Reply #22023-05-29
Based on the information provided, the volume of the air storage tank can be estimated using the following method: 1. First, it is necessary to determine whether the volume of the double-acting cylinder refers to the single-direction volume or the two-way volume. If it is a one-way volume, 100 L of gas is required per action ; If it is a two-way volume, 200 L of gas is required per action. Assuming the volume of the double-acting cylinder is the single-direction volume, 400 L of gas is required for 4 actions. 2. In the event of a gas supply failure, a gas storage tank is needed to store gas in order to ensure the proper operation of the valves. The volume of the gas tank should be sufficient to store the amount of gas required for 4 cycles, plus a certain margin. Generally, it is recommended that the capacity of the gas storage tank be 1.5 to 2 times larger than the amount of gas required. Therefore, if 4 actions require 400 L of gas, the recommended capacity for the gas tank is 600–800 L. 3. When estimating the volume of the gas storage tank, the actual pressure required for the gas supply must be taken into account, rather than the maximum operating pressure of the valve. Assuming that the pressure of the air source required by the valve is also 4 kg, the formula P1V1=P2V2 can be used to calculate the volume of the air tank. Among them, P1 is the air supply pressure of the cylinder, which is 4 kg ; V1 is the volume of the cylinder, which is 100L ; P2 is the supply pressure that requires a gas tank, namely 4 kg ; V2 is the volume of the gas storage tank, in liters. According to the formula, the volume of the gas storage tank required is: P1 × V1 ÷ P2 = 100L. Therefore, it is recommended to use a gas tank with a capacity of at least 600L to store the amount of gas required for 4 cycles. It should be noted that the methods mentioned above are only estimation techniques; the actual volume of the gas storage tank also needs to take into account factors such as actual usage conditions and the duration of gas supply disruptions. It is recommended to consult a professional or conduct calculations based on the actual conditions when selecting a gas storage tank. .
Reply #32023-09-27
Give it a push; I ran into it again. Is there anyone who can calculate it?

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