泵機(jī)械的問題的解決辦法

1、Mechanical Problem Solutions機(jī)械的問題的解決辦法Steven_TianjinMechanical Problem Solutions機(jī)械的問題的解決辦法Balance all of your rotating equipment. If you do not have dynamic balancing equipment in your plant there are contractors and vendors anxious to work with you. because the rapid wear always destroys balance. I

2、n the higher speed pumps this wear can be very severe. 平衡所有的旋轉(zhuǎn)設(shè)備.如果在你的工廠中沒有動(dòng)平衡設(shè)備,這里有供應(yīng)商與合同商渴望與你工作.因?yàn)榭焖倌p通常破壞平衡.在更高速度的泵中,這個(gè)磨損能非常嚴(yán)重Bent shafts are a problem. If you can straighten them go ahead and do it, but most attempts are unsuccessful. In the majority of cases you are better off replacing the sha

3、ft. 彎曲的軸是一個(gè)問題.如果你能弄直他們繼續(xù)和作他,但大多數(shù)的企圖是不成功的.在大多數(shù)的情況中你最好更換軸Mechanical Problem Solutions機(jī)械的問題的解決辦法Do a proper pump/ driver alignment using either a Laser or the reverse indicator method. Upgrading the pump power end to a C or D frame motor adapter is a more sensible and economical decision. Once the conv

4、ersion is made misalignment ceases to be a concern. These adapters are available for most motors and will maintain the proper alignment as the equipment goes through its normal temperature transients. 使用一個(gè)激光或者一個(gè)倒轉(zhuǎn)指示器的方法做一個(gè)恰當(dāng)?shù)谋?驅(qū)動(dòng)對(duì)準(zhǔn).升級(jí)泵的功率端到一個(gè) “C”或 “D”框架電機(jī)適配器上是一個(gè)更明智和經(jīng)濟(jì)的決定.一旦變換被做了,未對(duì)準(zhǔn)情況必須被考慮.這些適配器對(duì)大多數(shù)

5、電機(jī)可適用和維持恰當(dāng)?shù)膶?duì)準(zhǔn),隨著設(shè)備通過它的通常溫度瞬時(shí)Mechanical Problem Solutions機(jī)械的問題的解決辦法Always pipe from the pump suction to the pipe rack, never the other way. There are some more piping practices that you should follow:通常布管從泵的吸入側(cè)到管線架,從來不要用其它方法.這里有一些更多的布管習(xí)慣你應(yīng)遵循If you are experiencing pipe strain because of thermal growt

6、h at the suction, you might convert to a centerline design wet end and solve the problem. Center line designs make sense any time you are pumping a fluid in excess of 200 degrees Fahrenheit (100 Centigrade)如果你經(jīng)歷管線應(yīng)力因?yàn)樵谖雮?cè)的熱增長(zhǎng),你可能轉(zhuǎn)換到一個(gè)中心線設(shè)計(jì)濕端和解決這個(gè)問題.中心線設(shè)計(jì)使你任何時(shí)候泵送超過200華氏度的液體有意義Try to use at least ten

7、diameters of pipe between the pump suction and the first elbow.努力在泵的吸入口和第一個(gè)彎頭之間使用至少10倍直徑的管子Valve stems, T branches and elbows should be perpendicular to the pump shaft not at a right angle to it. This is especially important with double suction pumps because uneven inlet flow will cause the impeller

8、 to thrust in one direction causing bearing problems on one end of the pump.閥莖,T分支,和彎頭應(yīng)被安裝垂直于泵軸,不是在直角上.對(duì)于有雙吸入泵,這是特別重要的,因?yàn)椴黄椒€(wěn)的進(jìn)入流將引起葉輪在一個(gè)方向上推引起泵的一端的軸承問題Mechanical Problem Solutions機(jī)械的問題的解決辦法Pipe supports and hangers should be installed at unequal distances.管線支撐和吊架應(yīng)被安裝在不等的距離Use lots of hangers to supp

9、ort the piping.使用許多吊架來支撐管線Use lots of loops and expansion joints in the piping system.在管線中使用許多環(huán)結(jié)和膨脹連接After fabrication and testing remove all supports and lock pins from the spring hangers, loosen pipe flanges and adjust the system to free the pump from pipe strain.在裝配和測(cè)試完后移去所有的支撐和從彈簧吊架上的鎖銷,松的管線法蘭和調(diào)

10、節(jié)系統(tǒng)讓泵沒有管線應(yīng)力Reference the Hydraulic Institute Manual, or a similar publication to learn the proper methods of piping several pumps from the same suction source to prevent vortexing etc.參考 “液壓協(xié)會(huì)手冊(cè)”,或一個(gè)相似的印刷物來學(xué)習(xí)從相同的吸入源配管不同的泵的恰當(dāng)?shù)姆椒▉眍A(yù)防渦流等Mechanical Problem Solutions機(jī)械的問題的解決辦法The mass of the pump concrete

11、 foundation should be five times the mass of the pump, base plate and other equipment being supported.泵水泥基礎(chǔ)的質(zhì)量必須為泵,基板,和其它被支撐的設(shè)備質(zhì)量的5倍The foundation should be three inches ( 75 mm) wider than the base plate, all around, up to 500 horsepower (375 KW) and six inches (150 mm) above 500 horse power (375 K

12、W).小于等于500馬力(375千瓦),基礎(chǔ)必須比基座一周寬出3英寸.大于500馬力,基礎(chǔ)應(yīng)最小寬出6英寸Imaginary lines, extended downward 30 degrees to either side of a vertical through the pump shaft, should pass through the bottom of the foundation and not the sides.假象的線通過泵軸延伸向下30度到到一個(gè)垂直泵的兩側(cè),應(yīng)該通過基礎(chǔ)的底部和不是側(cè)面Every inch of stainless steel grows 0.001

13、 inch for every 100 Fahrenheit rise in temperature (0,001 mm/mm/50 Centigrade) This thermal growth can cause the impeller to rub the pump casing as well as cause rubbing in many close tolerance clearances such as the wear rings. Carbon steel grows about 30% less than stainless steel.每英寸的不銹鋼對(duì)于每100華氏度

14、溫度的提升將增長(zhǎng)0.001英寸.這個(gè)熱增長(zhǎng)能夠引起葉輪摩擦泵殼,也能引起許多緊密誤差間隙的磨損,像磨損環(huán).碳的增長(zhǎng)大約比不銹鋼小30%Mechanical Problem Solutions機(jī)械的問題的解決辦法Any time the shaft moves there is the danger of parts rubbing. Thermal imaging equipment can detect this rubbing easily. When ever you set tight tolerances be sure to allow for thermal growth and

15、, in the case of A.N.S.I. pumps, impeller adjustment. 無論什么時(shí)候軸的移動(dòng),這里有零件摩擦的危險(xiǎn).熱成像設(shè)備能夠很容易的探測(cè)這個(gè)摩擦.無論什么時(shí)候你設(shè)置緊誤差的時(shí)候,確保允許熱增長(zhǎng)和,在ANSI泵的情況下,葉輪的調(diào)整Worn or loose bearings are caused by improper installation or allowing water to enter the bearing cavity. Labyrinth seals or positive face seals are the easiest solution to the water problem. Install bearings by using a proper induction