For all structures of Roots vacuum pump, its sealing performance is very important. When we use it, sometimes the sealing performance of the equipment will decline. Here we will introduce the reasons for the decrease of sealing plug of Roots vacuum pump.
1、 Related chemicals added:
(1) Problem phenomenon: unsuitable chemicals will slowly corrode the seal ring of vacuum pump and cause seal failure.
(2) Solution: before selecting chemical reagents for use, experienced manufacturers will choose chemicals with less corrosion or even no corrosion.
2、 Working fluid:
(1) Problem phenomenon: this kind of working fluid contains calcium ions and carbon dioxide in the compressed medium to produce calcium carbonate, which is inevitable to damage the mechanical seal.
(2) Solution: we can carry out regular maintenance to minimize this problem.
3、 Bio slime:
(1) Problem phenomenon: the accumulated use of mud causes the gap of spring to be filled with mud, which affects the compensation function of spring in sealing, and also aggravates the wear of friction pairs of dynamic and static rings, affecting the sealing effect of auxiliary sealing ring.
(2) Solution: we are required to clean the vacuum pump regularly.
4、 The corrosion of the metal parts of the whole mechanical seal body caused by the combined action of the oxygen bacteria, biological slime, calcium ions and other chemicals in the working fluid seriously affected the sealing effect and service time of the vacuum pump mechanical seal.
5、 Upstream adsorbent:
(1) Problem phenomenon: Although most of the dust is removed by screening and other steps when the adsorbent is loaded, with the increase of operation time and the scouring of medium air flow, new dust will be generated more or less, and the dust entering the pump may enter the sealing part of mechanical seal at any time.
(2) Solution: we need regular maintenance and cleaning.
When we use roots vacuum pump, the sealing effect will drop occasionally. The above introduces several reasons for the decline of sealing performance. We should have a certain understanding of the causes, so that we can timely remedy the problems in the future.
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