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class="shijian" style="padding-bottom:15px;">发布于：2016-05-31 15:30:02</div> <div class="wz"> <br /> <p> 　　<strong>高压氧气阀门的风险</strong></p> <br /> <p> 　　当<a href="http://www.cynkitchen.com/" target="_blank">阀门</a>打开时，在阀座上形成压差时必胜彩票平台注册，高压氧气阀门会有两个风险：</p> <br /> <p> 　　风险一：在阀门开启过程中，通过阀门的高速和紊流必胜彩票平台注册。</p> <br /> <p> 　　风险二：由于绝热压缩使下游快速加压和温度升高必胜彩票平台注册。</p> <br /> <p> 　　高速和紊流及快速升压时的风险可通过使用旁通系统必胜彩票平台注册，在阀门开启之前先均衡隔离两侧的压力来加以避免。</p> <br /> <p> 　　<strong>从产品的设计和制造工艺来消除风险</strong></p> <br /> <p> 　　高压氧气阀门设计时，要求阀门内腔光洁，阀门内腔必须避免存在任何尖锐边缘和尽量减少产生涡流的区域必胜彩票平台注册。在制造工艺上要尽可能地提高内腔光洁度必胜彩票平台注册，特别是密封副的光洁度，其表面粗糙度应达到：0.025um~0.05um必胜彩票平台注册。</p> <br /> <p> 　　<strong>要求平衡压力的切断阀的警示标示</strong></p> <br /> <p> 　　为了确保高压氧气阀门安全使用，出厂时除必须标示：“禁油”外，还必须在阀门醒目位置，并含有以下内容的标示牌，字体颜色为红色。“警告：不能用于节流；在阀打开之前应使两端压力平衡以减轻由于高流速必胜彩票平台注册、紊流和绝热压缩而引起的氧气起燃和爆炸的危险必胜彩票平台注册。”</p> <br /> <div class="fanye"> <p>上一篇：<a href='/famenjishu/523.html'>给水系统功能、介质、范围必胜彩票平台注册、主要阀门</a> </p> <p>下一篇：<a href='/famenjishu/525.html'>粉末等离子弧堆焊材料</a> </p> </div> <div 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