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冲洗是机械密封的一种主要辅助措施,对使用寿命有较大的影响。表1是我厂部分泵的密封采用冲洗前后的使用寿命对比。统计密封失效的情况也说明冲洗的重要性,例如:在一个生产周期(10个月中),67台热油泵中,有13台打冲洗,54台没有冲洗,打冲洗的失效台数占15.4％,不打冲洗的失效台数占79.6％。因此有些国家(或厂商)已经把冲洗当成机械密封的一个组成部分。由此可见冲洗不仅对密封寿命有重要影响,对安全生产以及减少漏损、减少维修工作量和降低生产成本都有一定的作用,应给予足够的重视。
Flushing is a major aid to mechanical seals and has a significant impact on service life. Table 1 is part of my factory pump seal before and after the use of life comparison. For example, in a production cycle (10 months), of the 67 hot oil pumps, 13 were flushed, 54 were not flushed, and the number of flushes was 15.4% , Do not wash the number of failures accounted for 79.6%. Therefore, some countries (or manufacturers) have already considered flushing an integral part of the mechanical seal. This shows that not only flushing has an important impact on the life of the seal, on the safe production and reduce leakage, reduce maintenance workload and reduce production costs have a certain role, should be given sufficient attention.