1. <listing id="26ji2"><object id="26ji2"><p id="26ji2"></p></object></listing><var id="26ji2"></var>
      2. <listing id="26ji2"></listing>
        <meter id="26ji2"><strong id="26ji2"><acronym id="26ji2"></acronym></strong></meter>
        1. 
          

            <tt id="26ji2"></tt>

                1. <output id="26ji2"><button id="26ji2"><address id="26ji2"></address></button></output>
                    <output id="26ji2"><pre id="26ji2"><dd id="26ji2"></dd></pre></output>
                        <meter id="26ji2"><delect id="26ji2"></delect></meter>
                          <label id="26ji2"></label>
                            <mark id="26ji2"><button id="26ji2"></button></mark>

                              <mark id="26ji2"><button id="26ji2"><address id="26ji2"></address></button></mark>

                              1. <listing id="26ji2"><object id="26ji2"></object></listing>

                                  <tt id="26ji2"><pre id="26ji2"></pre></tt>
                                  1. <label id="26ji2"><ruby id="26ji2"></ruby></label>
                                  2. <mark id="26ji2"><pre id="26ji2"></pre></mark>

                                  3. <code id="26ji2"></code>

                                  4. <tt id="26ji2"><wbr id="26ji2"></wbr></tt>

                                    <blockquote id="26ji2"></blockquote>
                                  5. <label id="26ji2"><button id="26ji2"></button></label>
                                    
                                    

                                      1. <mark id="26ji2"></mark>
                                        <output id="26ji2"></output>

                                        鍋爐壓力試驗的方法

                                        2016-05-23 0

                                        鍋爐壓力試驗的方法

                                        做鍋爐壓力試驗時,可依照下列要領實施

                                        1.應將鍋爐裝滿水,這時應把最上部的空氣閥(或其他能排出空氣的閥)打開,以排出鍋爐內部全部的空氣。 如鍋爐內部有空氣殘留時,不易維持水壓力,故應予排盡確認鍋爐水已由上部溢出后,再把閥關閉。 

                                        2.各密封處所及閥類等不可有漏水情形,如有任何泄漏,就不易維持水壓力。 

                                        3.水壓試驗時所用的水之溫度以室溫為標準。 如過低時會在表面結露不易檢查。

                                        4.壓力應使其慢慢上升,因此應使用手搖式的水壓試驗泵,水泵亦應裝置壓力表,并與鍋爐的壓力表相比較慢慢升壓。 

                                        5.水壓達到所定的壓力時約維持30分鐘,如發覺有降壓現象時,應妥予查出降壓原因。 

                                        6.對于泄壓處必須實施止漏斂縫或擴管時,應先降壓后再實施,絕不可在高壓力下做斂縫止漏作業。 

                                        7.要降壓時應慢慢降低水壓力,排水時應將空氣閥或最上部的閥打開,以免引起鍋爐內部產生真空。 

                                        8.在水壓試驗時絕不可鎖緊安全閥的彈簧,應在管臺之凸緣用盲板予以遮閉,水壓試驗后切不可忘記除去該盲板。

                                        (學術文章,僅供參考)

                                        北京赛车计划数据
                                            1. <listing id="26ji2"><object id="26ji2"><p id="26ji2"></p></object></listing><var id="26ji2"></var>
                                            2. <listing id="26ji2"></listing>
                                              <meter id="26ji2"><strong id="26ji2"><acronym id="26ji2"></acronym></strong></meter>
                                              1. 
                                                

                                                  <tt id="26ji2"></tt>

                                                      1. <output id="26ji2"><button id="26ji2"><address id="26ji2"></address></button></output>
                                                          <output id="26ji2"><pre id="26ji2"><dd id="26ji2"></dd></pre></output>
                                                              <meter id="26ji2"><delect id="26ji2"></delect></meter>
                                                                <label id="26ji2"></label>
                                                                  <mark id="26ji2"><button id="26ji2"></button></mark>

                                                                    <mark id="26ji2"><button id="26ji2"><address id="26ji2"></address></button></mark>

                                                                    1. <listing id="26ji2"><object id="26ji2"></object></listing>

                                                                        <tt id="26ji2"><pre id="26ji2"></pre></tt>
                                                                        1. <label id="26ji2"><ruby id="26ji2"></ruby></label>
                                                                        2. <mark id="26ji2"><pre id="26ji2"></pre></mark>

                                                                        3. <code id="26ji2"></code>

                                                                        4. <tt id="26ji2"><wbr id="26ji2"></wbr></tt>

                                                                          <blockquote id="26ji2"></blockquote>
                                                                        5. <label id="26ji2"><button id="26ji2"></button></label>
                                                                          
                                                                          

                                                                            1. <mark id="26ji2"></mark>
                                                                              <output id="26ji2"></output>

                                                                                  1. <listing id="26ji2"><object id="26ji2"><p id="26ji2"></p></object></listing><var id="26ji2"></var>
                                                                                  2. <listing id="26ji2"></listing>
                                                                                    <meter id="26ji2"><strong id="26ji2"><acronym id="26ji2"></acronym></strong></meter>
                                                                                    1. 
                                                                                      

                                                                                        <tt id="26ji2"></tt>

                                                                                            1. <output id="26ji2"><button id="26ji2"><address id="26ji2"></address></button></output>
                                                                                                <output id="26ji2"><pre id="26ji2"><dd id="26ji2"></dd></pre></output>
                                                                                                    <meter id="26ji2"><delect id="26ji2"></delect></meter>
                                                                                                      <label id="26ji2"></label>
                                                                                                        <mark id="26ji2"><button id="26ji2"></button></mark>

                                                                                                          <mark id="26ji2"><button id="26ji2"><address id="26ji2"></address></button></mark>

                                                                                                          1. <listing id="26ji2"><object id="26ji2"></object></listing>

                                                                                                              <tt id="26ji2"><pre id="26ji2"></pre></tt>
                                                                                                              1. <label id="26ji2"><ruby id="26ji2"></ruby></label>
                                                                                                              2. <mark id="26ji2"><pre id="26ji2"></pre></mark>

                                                                                                              3. <code id="26ji2"></code>

                                                                                                              4. <tt id="26ji2"><wbr id="26ji2"></wbr></tt>

                                                                                                                <blockquote id="26ji2"></blockquote>
                                                                                                              5. <label id="26ji2"><button id="26ji2"></button></label>
                                                                                                                
                                                                                                                

                                                                                                                  1. <mark id="26ji2"></mark>
                                                                                                                    <output id="26ji2"></output>

                                                                                                                    双色球拖胆玩法计算表 下载彩计划 彩票幸运飞航计划 混选怎样算中奖 mg游戏官网 足球竞猜 大赢家足球比分310 福彩3d复式计算器 非凡炸金花提现版1.1.1 千里马免费计划官网 重庆时时彩彩官方开奖 玩双面盘彩票的技巧规律 pk10赛车历史开奖记录 足球世界杯直播 稳赚 快三稳赚玩法技巧