The invention provides a lift pump rotor durability of the pump shaft and the impeller assembly method, which comprises the following steps: 1, between the pump shaft and the impeller heating assembly with the installation; 2, try to do after the hot charging of rotor dynamic balance test, natural frequency is 25.0HZ; 3, an impeller ring, the guide vane sleeve with a single sealing form, can improve the sealing ring and the guide vane sleeve to form water film damping force; 4, the impeller inducer and impeller using single stage axial positioning half clasp, solve the problem space; 5, the guide vane sleeve, a sealing ring, a seal sleeve, and the balance is made water pump friction Germany KSB company to pay the anti anti bite material RWA350, namely 1Cr13MoS, impeller, guide vane with the material of S14S280 1Cr13NiMo; 6, water pump, balance disc seat face from the original balance between Phi 250 and Phi Phi 260 Phi 310mm expansion for 320mm; 7. Balance tube orifice plate removal. By improving the assembly process and the improvement of the material, the gap between the components is reduced, and the firmness between the components is enhanced, and the service life of the whole water pump is extended in a whole.
【技術(shù)實(shí)現(xiàn)步驟摘要】
提升給水泵轉(zhuǎn)子耐用性的泵軸與葉輪的裝配方法
本專利技術(shù)涉及一種給水泵轉(zhuǎn)子與葉輪的方法,尤其是一種固定牢固,可有效提升給水泵轉(zhuǎn)子耐用性的泵軸與葉輪的裝配方法。
技術(shù)介紹
現(xiàn)有的給水泵泵軸和葉輪以及用于固定兩者的導(dǎo)葉套、密封環(huán)、平衡座、前后水封襯套等材質(zhì)均為傳統(tǒng)的材質(zhì),其強(qiáng)度不高,時(shí)間久了容易產(chǎn)生較大磨損導(dǎo)致給水泵停機(jī)或損壞;同時(shí),由于泵軸與葉輪之間的裝配采用的是傳統(tǒng)的間隙配合,這就更容易導(dǎo)致兩者之間產(chǎn)生松脫,導(dǎo)致給水泵過早損壞,造成很大的更換零部件的經(jīng)濟(jì)損失和整機(jī)停機(jī)的經(jīng)濟(jì)效益損失。
技術(shù)實(shí)現(xiàn)思路
為解決上述問題,本專利技術(shù)提供了一種堅(jiān)固耐用的可有效杜絕安全隱患的提升給水泵轉(zhuǎn)子耐用性的泵軸與葉輪的裝配方法。實(shí)現(xiàn)本專利技術(shù)目的的提升給水泵轉(zhuǎn)子耐用性的泵軸與葉輪的裝配方法,包括如下步驟:1、將泵軸與葉輪之間進(jìn)行熱裝過盈配合安裝,過盈量0.027mm~0.052mm,首級(jí)葉輪至末級(jí)葉輪與泵軸配合外徑逐級(jí)漸小,相鄰級(jí)軸徑差0.20mm;首級(jí)葉輪處泵軸直徑Φ128+0.025+0.015mm,末級(jí)處泵軸直徑Φ126+0.025+0.015mm,首級(jí)、次級(jí)葉輪輪轂處Φ143.6+0.025+0.015mm,葉輪型線不變;2、熱裝轉(zhuǎn)子試裝后做動(dòng)平衡試驗(yàn),固有頻率為25.0HZ,提高了轉(zhuǎn)子的第一臨界轉(zhuǎn)速;3、葉輪口環(huán)、導(dǎo)葉套采用單密封形式,可提高密封環(huán)、導(dǎo)葉套形成水膜的消振力;4、葉輪誘導(dǎo)輪、葉輪采用分半卡環(huán)單級(jí)軸向定位,解決了間隙問題;5、導(dǎo)葉套、密封環(huán)、平衡座、前后水封襯套等材質(zhì)采用西德KSB公司的給水泵摩擦付防粘抗咬合材料RWA350,即1Cr13MoS,葉輪、導(dǎo)葉采用材 ...
【技術(shù)保護(hù)點(diǎn)】
提升給水泵轉(zhuǎn)子耐用性的泵軸與葉輪的裝配方法,包括如下步驟:(1)、將泵軸與葉輪之間進(jìn)行熱裝過盈配合安裝,過盈量0.027mm~0.052mm,首級(jí)葉輪至末級(jí)葉輪與泵軸配合外徑逐級(jí)漸小,相鄰級(jí)軸徑差0.20mm;首級(jí)葉輪處泵軸直徑Φ128
【技術(shù)特征摘要】
1.提升給水泵轉(zhuǎn)子耐用性的泵軸與葉輪的裝配方法,包括如下步驟:(1)、將泵軸與葉輪之間進(jìn)行熱裝過盈配合安裝,過盈量0.027mm~0.052mm,首級(jí)葉輪至末級(jí)葉輪與泵軸配合外徑逐級(jí)漸小,相鄰級(jí)軸徑差0.20mm;首級(jí)葉輪處泵軸直徑Φ128+0.025+0.015mm,末級(jí)處泵軸直徑Φ126+0.025+0.015mm,首級(jí)、次級(jí)葉輪輪轂處Φ143.6+0.025+0.015mm,葉輪型線不變;(2)、熱裝轉(zhuǎn)子試裝后做動(dòng)平衡試驗(yàn),固有頻...
【專利技術(shù)屬性】
技術(shù)研發(fā)人員:吳振兵,范會(huì)勇,秦建亮,
申請(專利權(quán))人:大唐武安發(fā)電有限公司,
類型:發(fā)明
國別省市:河北,13
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