Oil-sealed vacuum pumps are almost inseparable from exhaust filters. Exhaust filters can not only protect the environment, but also save pump oil. Some manufacturers have multiple vacuum pumps. In order to save costs, they want to connect pipes to make one filter serve multiple vacuum pumps. From a short-term and shallow perspective, it does reduce the demand for exhaust filters and save money. However, from a long-term and deep perspective, this method may increase the demand for exhaust filters and may damage equipment, etc., which actually increases costs and even takes unnecessary risks.
If the same consumables are used in multiple devices, they will definitely wear out faster, and regardless of the changes in the total consumption, the frequency of replacement will definitely become more frequent.
In order to achieve the sharing of one exhaust filter by multiple pumps, a large filter must be customized, and the customization cost is much higher. In addition, a wider pipeline must be installed (which is a new expense), otherwise a large amount of gas may not be discharged in time, which may cause the pipeline or equipment to explode. The exhaust pressure is constantly reduced in the pipeline, which is not conducive to exhaust.
In the end, the point that people tend to overlook the most is the efficiency of this method (including filtration efficiency and recovery efficiency). The filtering principle of the exhaust filter is actually the coalescence principle. The temperature of the exhaust gas just discharged is higher, and the oil molecules are more likely to gather to form oil droplets. So the directly installed exhaust filter is more efficient. If the filter is connected through pipelines, the temperature of the exhaust gas will decrease during the flow process, and then vapor will mix with the oil.
Post time: Jan-03-2025
