兰色知己 发表于 2006-11-13 11:15:21

泵用机械密封的冷却和冲洗

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Verdana"><BR><BR></SPAN><SPAN class=tpccontent1><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana">1</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、第一种冷却形式</SPAN></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><BR><SPAN class=tpccontent1>&nbsp; &nbsp; </SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">由泵的出口或高压端，将输送的干净介质，直接冲洗密封端面，然后进入泵腔内，通过介质的不断循环，将磨擦端面的的磨擦热带走达到冷却的效果。</SPAN></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><BR><SPAN class=tpccontent1>2</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、第二种冷却方式</SPAN></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><BR><SPAN class=tpccontent1>&nbsp; &nbsp; </SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">在第一种冷却形式的基础上在静环的背部增加一冷却水套，冷却效果有所改善，并可以冲洗，收集泄露出来的液体。当密封介质温度＞</SPAN></SPAN><SPAN class=tpccontent1><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana">150</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体">℃</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">时除了在冷却水套中通过冷却水及静环背部冷却外，应采取强制冷却措施。即从泵出口的干净介质应预先经热交换器冷却至</SPAN></SPAN><SPAN class=tpccontent1><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana">50</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体">℃</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">时。再进入密封腔冷却冲洗，该形式是冷却效果最良好的一种。</SPAN></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Verdana"><BR><SPAN class=tpccontent1>3</SPAN></SPAN><SPAN class=tpccontent1><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、如介质中含有颗粒或杂质，必须采用过滤措施，把常温干净冲洗液输入密封腔内。</SPAN></SPAN></P>

mianyang82 发表于 2007-1-14 20:32:36

Re: 泵用机械密封的冷却和冲洗

备用用泵常常因为水结垢，密封泄漏，有什么好的办法吗？GY的密封
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