產(chǎn)品詳情
潛水式混流泵A香河潛水式混流泵250HW-12
以滿足用戶之需。軸流泵的配力根據(jù)泵型之不同,可選用相應(yīng)的立式或臥室電機(jī)采用直聯(lián)或與皮帶轉(zhuǎn)動等傳送型式。大型、特大型軸流泵大型軸流泵指葉輪直徑大于1米,小于1.6米的軸流泵。有ZLQ型、ZLB型、GWB型、ZGQ型等多種立式軸流泵、貫流式軸流泵。特大型軸流泵是葉輪直徑1.6以上。葉片可全調(diào)節(jié)或半調(diào)節(jié)的立式、臥式、斜式軸流泵。主要用于大面積農(nóng)田排灌和跨流域調(diào)水,特別是低洼地區(qū)和湖區(qū)的排水。機(jī)組運行期間,可根據(jù)需要用液壓或機(jī)械系統(tǒng)調(diào)節(jié)葉片角度,充分發(fā)揮水泵的效能,使其在泵的高效區(qū)運行。其性能范圍如下:流量5~60米3/時,揚程1.3~9米,功率300~6000千瓦。生產(chǎn)軸流泵的主要工廠有;無錫水泵廠(軸流泵、特大型軸流泵)、高郵水泵廠(軸流泵)、上海水泵廠(軸流泵、特大型軸流泵)、武漢水泵廠(軸流泵、特大型軸流泵)等。
*技術(shù)參數(shù)
(2)改變轉(zhuǎn)速的方法:改變皮帶輪外徑或改變齒輪減速器傳動比,也可選用不同轉(zhuǎn)速的動力機(jī)。jdhuiquan717
(3)水泵轉(zhuǎn)速改變后,其流量(Q)、揚程(H)和功率(N)的變化關(guān)系如下式所示: Q1=Q*n1/n H1=H*(n1/n)2 N1=N*(n1/n)3
式中:Q1、H1、N.分別代表轉(zhuǎn)速改變后的流量、揚程和功率。 Q、H、N分別代表規(guī)定轉(zhuǎn)速下的流量、揚程和功率。
(4)水泵轉(zhuǎn)速提高后,耗用功率增加,吸上真空度降低,壽命縮短。過分提高轉(zhuǎn)速會發(fā)生其它事故,故應(yīng)慎用。
(5)水泵轉(zhuǎn)速過分降低時,泵的使用效益低,為此,應(yīng)盡量避免泵在過低轉(zhuǎn)速下運行。用戶應(yīng)按性能曲線圖選擇使用。
潛水式混流泵A香河潛水式混流泵250HW-12
(3)配套功率它是指水泵應(yīng)選配的動力機(jī)的功率,因此又稱用功率。常用符號為N配,它比軸功率大。這是因為動力機(jī)把動力傳遞給水泵的過程中,有傳動損失;同時還要考慮水泵工作時,流量及揚程有波動而可能出現(xiàn)動力機(jī),因此動力機(jī)需有比水泵軸功率大的功率儲備。配套功率可按下式求得:動力安全系數(shù)×(千克/秒)×揚程(米)配套功率(千瓦)=—————————————————————102×水泵效率×傳動效率動力安全系數(shù)(或稱備用系數(shù))可根據(jù)水泵軸功率大小確定,軸功率小時取大值。傳動交率要根據(jù)傳動類型和傳動方式確定。采用聯(lián)軸器直接傳動時,取0.99。采用皮帶傳動時,開口式傳動取0.98,交叉?zhèn)鲃尤?.9,半交叉?zhèn)鲃尤?.92~0.94;
2、允許吸上真空度[Hs]與必需汽蝕余量[NPSH]r的換算關(guān)系:
[Hs]≈10-[HPSH]c
[NPSH]r≈[NPSH]C+0.3
式中:[Hs]-允許吸上真空度 米
[NPSH]C-臨界汽蝕余量 米
[NPSH]r-必需汽蝕余量 米
*特征描述
HW 型蝸殼式混流泵是按國家標(biāo)準(zhǔn)最新系列而設(shè)計的高節(jié)能產(chǎn)品。其性能指標(biāo)均達(dá)到國際先進(jìn)水平,省材節(jié)能效果顯著。延伸搜索:水環(huán)真空泵
(一)用途
HW型混流泵為臥式、單級、單吸、懸臂蝸殼式混流泵,適用于農(nóng)田排灌、工業(yè)、城鎮(zhèn)給排水及船塢、碼頭引水等。延伸搜索:水環(huán)真空泵
(二)特點
體積小、重量輕、流量大、效率高,汽蝕性能好,高效區(qū)范圍寬廣而平坦,結(jié)構(gòu)簡單,使用管理方法,維修容易。延伸搜索:水環(huán)真空泵
(三)型號說明
以250HW—8為例:
250—泵進(jìn)(出)水口直徑為250毫米。
8—泵總揚長為8米。
(四)水泵的傳動方式
我廠生產(chǎn)的HW型系列混流泵均機(jī)(電)兩用,其轉(zhuǎn)動方式視各地區(qū)動力情況而定,訂貨時根據(jù)原動機(jī)的型號(功率、轉(zhuǎn)速)確定水泵的傳動方式,以定皮帶輪的大小或聯(lián)軸器的規(guī)格。延伸搜索:水環(huán)真空泵
(五)水泵轉(zhuǎn)向:
從水泵進(jìn)水口看葉輪為逆時針方向旋轉(zhuǎn)(即箭頭所示的方向旋轉(zhuǎn))。
潛水式混流泵A香河潛水式混流泵250HW-12
However, improper installation, long use time or poor maintenance, but also easy to wear or destroy. Rolling bearings In addition to the individual parts can be replaced with new, generally have to replace the whole parts. The mouth ring is also called a leak reduction or grinding ring. It is one of the most wear-prone parts in the pump. After wear can be repaired or replaced with new. When replacing the new leak reduction ring, its inner diameter should be configured according to the outer diameter of the impeller inlet. If the impeller inlet diameter wear, can be turning processing, in order to eliminate trench marks and ellipses, and then configure the internal diameter reduction of the leakage ring, impeller inlet diameter can generally be turning three times. Filler after a long time will harden and lose elasticity, will make the pump leakage, leakage, generally should replace the new filler. Oil seal is rubber products, easy to wear and aging, generally have to replace new parts. Parameters and properties of water pump (1) The main beters of the pump pump beters are the main technical data of the pump's operating perbance, including flow, lift, speed, efficiency and ratio of the number of revolutions. Flow rate (Q) The flow rate of the pump refers to the amount of liquid discharged during the unit time.
Instructions for use (i) the HW mixed-flow pump is composed of main parts such as pump body, pump cover, impeller, pump shaft and bearing body. (Ii) The pump cover is a part of the pump connected to the inlet pipe, with a specified axial end gap between the end surface and the impeller (maintaining the specified axial bance after eliminating the axial activity gap of the bearing). The gap is too small to produce friction, too large will lead to the pump pressure water reflux, so that the pump efficiency is reduced, through the increase or decrease adjustment paper pad to meet the required requirements of the gap. Extended search: Water ring Vacuum Pump (iii) The sealing device is composed of a filler letter, a water seal letter, a filler cover and a lead powder (or oil immersion) asbestos root. Its role is: 1, in the tea to prevent air inhalation pump, play a sealing role. 2. When pumping, prevent water from flowing out of the pump too much along the shaft. (Iv) Shaft application to protect the shaft does not make it directly friction with the filler, if long-term use found that the bushing wear too much, can change the bushing. (V) The two supports of the pump shaft are bearings in the bearing body, and the bearing has an appropriate amount of grease in its body to lubricate the bearings. (Vi) The baffle on the shaft prevents water from flowing into the bearing body along the pump, thus protecting the bearing and extending its service life.
用途/應(yīng)用領(lǐng)域
混流泵混流泵是一種比轉(zhuǎn)速較高的泵型,廣泛應(yīng)用于農(nóng)田灌溉,防澇排洪,污水處理,電站冷卻系統(tǒng)等領(lǐng)域.在大流量,低揚程的應(yīng)用場合下,軸流泵揚程,流量變化范圍小,高效區(qū)窄,抗汽蝕性能差,使用混流泵代替軸流泵,能夠在發(fā)揮軸流泵優(yōu)點的基礎(chǔ)上補(bǔ)償這些缺點,從而取得更好的使用效果.
高比轉(zhuǎn)速混流泵的設(shè)計方法
軸面流動計算
采用流線迭代法求解軸面流動.流線迭代法基于沿任意準(zhǔn)正交線的軸面速度梯度方程和流體運動的連續(xù)方程,根據(jù)各子流道流量相等的原則,迭代求解沿準(zhǔn)正交線的軸面速度梯度方程即可得到軸面流網(wǎng).通過流線迭代法,在確定軸面流道輪廓之后,可以通過所需時間很短的迭代計算過程得到精確的軸面流網(wǎng).圖1是流網(wǎng)所對應(yīng)的軸面速度沿軸面流線的分布圖.
性價比高,效能及時周到”是我公司誠信運營的理念,是我公司曾經(jīng)的特征。自治區(qū)我公司出產(chǎn)的水泵產(chǎn)品在國內(nèi)商場出售以覆蓋了全國三十一個省市也是我公司長遠(yuǎn)翻開的政策,愿與各位新老客戶在往后的協(xié)作中不斷體會并一起翻開共創(chuàng)光芒。產(chǎn)品具有技能含量高,規(guī)范完全,質(zhì)量牢靠等利益。形成了以自主知識產(chǎn)權(quán)為中心的技能體系。并為一些重點工程,環(huán)保污水處理,化工工業(yè)防腐,國防,農(nóng)業(yè)與動力挖掘等做出貢獻(xiàn)。制作,出售于一體的現(xiàn)代化企業(yè)。具有完善的質(zhì)量處理體系,精深的科研,并與江蘇理工大學(xué),動力與動力工程學(xué)院和泵類研討建立了長時刻的戰(zhàn)略協(xié)作關(guān)系。不斷推出泵作業(yè)新產(chǎn)品。本公司系專業(yè)研制公司位于于我國“泵閥之都”的安國工業(yè)區(qū)新技能。