2026-04-10Views：
Users who use screw air compressors often complain about the accumulation of water in the head of the air compressor, and some even appear on the new screw air compressor that has just been used for a short time, causing the head of the screw machine of the air compressor to rust or even get stuck and damaged, losing money and time.
First of all, we need to find out why the screw air compressor accumulates water:
definition of dew point: Under a fixed pressure, the temperature at which the gaseous water contained in the air reaches saturation and condenses into liquid water.
Our atmosphere contains water vapor, which is what we usually call humidity. This water will enter the screw air compressor with the atmosphere.
When the screw air compressor is running, the dew point of the compressed air will decrease with the increase of the pressure, but at the same time, the compression process will also generate a lot of compression heat. The oil temperature of the compressor in normal operation is designed to be above 80°C, so that the heat of compression volatilizes the water in the air into a gaseous state and discharges it to the back end with the compressed air.
If the selection of air compressor is too large, or the user's gas consumption is extremely small, the running load rate of screw machine is seriously low, which will lead to the oil temperature not reaching above 80 ℃ for a long time, even lower than the dew point. At this time, the moisture in the compressed air will condense into a liquid state and remain inside the air compressor, mixed with the lubricating oil. At this time, the oil filter and the oil core will increase the load and fail quickly. In severe cases, the oil will deteriorate and emulsify, causing the main engine rotor to rust and jam.
When the ambient temperature is 20 ℃ and the relative humidity is 100, under the pressure of 10KG, the exhaust temperature below 68 ℃ will produce condensed water. With reference to this figure, you can inquire about the temperature of condensed water under different conditions.
In the following situations, pay special attention to whether the air compressor is flooded:
factory trial production stage, capacity is not fully opened
high humidity and humid environment, such as Huangmei rainy season in Jiangnan area
unit loading rate continuously below 30%
solution
in the selection of equipment, be sure to ask professionals to choose the appropriate power of the air compressor unit.
In the case of low gas consumption or high humidity, the screw machine is shut down for 6 hours and then drain the condensate in the oil and gas barrel until the oil flows out. (Regular discharge is required, and how long it takes depends on the use environment of the screw machine)
for the air-cooled unit, the fan temperature switch can be properly adjusted and the heat dissipation can be adjusted to increase the oil temperature; for the water-cooled unit, the water intake of the cooling water can be properly adjusted to ensure the oil temperature of the air compressor. For the frequency conversion unit, the minimum operating frequency can be appropriately increased to increase the machine speed and increase the operating load.
For users with particularly small gas consumption, properly discharge the pressure of the regular back-end gas tank to artificially increase the operating load of the machine.
The use of genuine lubricating oil, a better oil-water separation, not easy to emulsify. Check the oil level before each boot to see if there is any abnormal rise or oil emulsification.
One of the two major faults that often occur during the use of screw air compressors is oil leakage. Oil leakage faults are divided into many kinds of organic head oil leakage and shaft seal oil leakage. The rotor of a carbon dioxide screw press in an enterprise is divided into two parts: yin and yang, with a rotating speed of 2157r/min.
There are many air compressor brands on the market, and the price difference is also very large, which makes buyers very vague. Granklin Group, as an air compressor manufacturer, has an understanding of the air compressor market and summarizes the following points, hoping to solve the confusion of users.
View detailsWhat is the price of oil-free and water-free air compressor? Oil-free air compressor does not contain a drop of oil during compression. The air compressor head needs cooling and lubrication, and water is used as the lubricating medium. This effect can be achieved very well. Industrial production often needs to be matched with post-treatment such as cold dryer, suction dryer, precision filter, air storage tank, etc.
What is the reason for the unbalance of the main engine of the screw air compressor and how to deal with it? Check whether the three-phase voltage is balanced. If the voltage is unbalanced, the current will also be affected, which is easy to cause equipment failure;
Frequency conversion air compressor for lubricating oil quality requirements are much higher than the frequency air compressor, can not be used according to the standard selection of lubricating oil frequency air compressor. The reasons are as follows: 1. The frequency conversion air compressor is easy to accumulate water at low frequency, and the water resistance of the lubricating oil is much higher than that of the power frequency air compressor;
Air compressor as a core component of manufacturing enterprises, in the purchase of air compressor how to do not step on the thunder? Not much to say, summarize the following points, for your reference: 1. How to choose the right model?
Such as biology, medicine, electronics, food, medical, automotive, chemical and other fields, water, oil, dust, bacteria, etc. are required to reach a higher level, but the water, dust, bacteria in the compressed air can be solved by a series of post-processing equipment such as filters and dryers, and
When we choose an oil-free water-lubricated air compressor, in addition to conventional parameters such as displacement and power, we generally pay attention to its cooling method. Generally, there are two main cooling methods for an oil-free water-lubricated air compressor: water-cooled and Air-cooled, then these two cooling methods
Shanghai granklin group co., ltd. specializes in air compressors. Air compressor accessories of various brands; Cold dryer, suction dryer (compressed air adsorption dryer achieves drying effect through "pressure change" (pressure swing adsorption principle). Since the ability of air to hold water vapor is inversely proportional to the pressure, a part of the dried air (called regeneration gas) is decompressed and expanded to atmospheric pressure. This pressure change makes the expanded air drier, and then allows it to flow through the desiccant layer to be regenerated without air flow (I. e. the drying tower that has absorbed enough water vapor). The dried regeneration gas absorbs the water in the desiccant, take it out of the dryer to achieve the purpose of dehumidification.
Screw air compressor consumes a lot of electricity in the whole factory. Guangzhou screw air compressor manufacturers can greatly reduce the cost of the factory by converting part of the consumption of screw air compressor into renewable energy. For example, the condensate recovery of screw air compressor, Guangzhou screw air compressor manufacturers collect the heat energy of screw air compressor through other equipment for everyone to take a bath, etc. This equipment is the condensate recovery equipment.
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