LB型不可抽式立式長(zhǎng)軸濕坑泵Vertical Mixed Flow Pump

LB型轉(zhuǎn)子不可抽式立式長(zhǎng)軸濕坑泵產(chǎn)品概述

LB型不可抽式立式長(zhǎng)軸透平泵適用于電廠、鋼廠、自來(lái)水公司、污水處理廠、石油化工、礦山等工礦企業(yè)，以及市政給排水工程、農(nóng)業(yè)灌溉、防洪排澇等工程。可以用來(lái)輸送55℃以下的清水、雨水、鐵皮坑水、污水以及海水等介質(zhì)，流量范圍30-8400m3/h，揚(yáng)程范圍10-200m。特殊設(shè)計(jì)的輸送介質(zhì)溫度可達(dá)90℃。

Description

The said series pumps are used to transfer clear water,rain water,water in iron sheet pits,sewage and seawater,servicing in power plants,iron and steel works,water supply companies,sewage treatment plants,petroleum and chemical industries,mines as well as municipal water supply and drainage projects,farmlands irriagation,flood protection and drain waterlogged farmlands,etc..The temperature of pumped media is below 55℃ and reaches to 90℃ for special design. The flow rate ranges from 30 to 8400m3/h and the head—from 10 to 200m.

LB型不可抽式立式長(zhǎng)軸濕坑泵產(chǎn)品特點(diǎn)

1、 運(yùn)行平穩(wěn)，安全可靠，免抽真空啟動(dòng)，使用壽命周期長(zhǎng)。

2、 泵體積小，基礎(chǔ)占地面積少，基礎(chǔ)以下泵長(zhǎng)度可以調(diào)整，適應(yīng)性強(qiáng)。

3、 流道簡(jiǎn)單可靠，節(jié)省泵房基建投資。

4、 結(jié)構(gòu)合理，裝拆方便，維護(hù)檢修容易簡(jiǎn)便。

5、 泵效率高，降低運(yùn)行成本。

Features

1. Operation smooth,safe and reliable,starting without exhausting vacumn,service life long.

2. The volumn of the pump small,less occupied land area, the length under foundation adjustable,applicability strong.

3. Flowing channel simple and reliable,saving the investment for construction of the pump house.

4. Structure reasonable,convenient for mounting and dismantling,,easy to maintain and inspect.

5. Efficiency high, operating cost reduced.

LB型不可抽式立式長(zhǎng)軸濕坑泵型號(hào)說(shuō)明

 500LB-55.3Ⅰ(×2、3)

 500—Outlet of the pump:500mm

 L---Vertical mixed flow pump

 B---Non pull-out rotor

55.3---Design head

Ⅰ---Pump design class(no mark when first time design)

 ×2-- Stage number

LB型轉(zhuǎn)子不可抽式立式長(zhǎng)軸濕坑泵產(chǎn)品結(jié)構(gòu)說(shuō)明

簡(jiǎn)圖一. LB型不可抽立式長(zhǎng)軸濕坑泵結(jié)構(gòu)簡(jiǎn)圖(型式:ST) Sectional Arrangement Of Type LB(Type ST)

簡(jiǎn)圖二.LB型立式長(zhǎng)軸泵濕坑泵2級(jí)結(jié)構(gòu)簡(jiǎn)圖(型式:ST)Sectional Arrangement Of Type LB With Two Stages(Type ST)

1、 LB型立式長(zhǎng)軸泵為立式單級(jí)（多級(jí)）離心式或斜流式帶導(dǎo)葉體結(jié)構(gòu)。

2、 泵的結(jié)構(gòu)型式有泵吐出口在安裝基礎(chǔ)之上和之下(型式代號(hào)分別為S和X)、泵承受軸向力和電機(jī)承受軸向力(型式代號(hào)分別為T(mén)和D)、外接潤(rùn)滑水和泵自身潤(rùn)滑等形式。

3、 泵安裝型式有濕坑式安裝或干坑式安裝。

濕坑式安裝：泵下部浸沒(méi)在吸水池中。

干坑式安裝：泵采用管道進(jìn)水，泵吸入喇叭口與進(jìn)水管道之間采用90°肘形進(jìn)水彎管聯(lián)接。

4、 泵軸承為橡膠導(dǎo)軸承或賽龍導(dǎo)軸承。

5、 泵口徑在1000mm以下時(shí)，泵轉(zhuǎn)子一般為不可抽形式；泵軸向水推力及轉(zhuǎn)子重量一般由泵本體推力軸承承受，泵和電機(jī)之間采用彈性聯(lián)接；泵吐出口位于安裝面基礎(chǔ)之上（型式代號(hào)為ST的結(jié)構(gòu)形式）。如有要求，也可以由電機(jī)承受軸向水推力及轉(zhuǎn)子重量；或其它結(jié)構(gòu)形式的組合（型式代號(hào)為SD、XT、XD）;用戶(hù)如有要求， 也可以設(shè)計(jì)成可抽式結(jié)構(gòu)形式。泵口徑在1000mm以上時(shí)，泵轉(zhuǎn)子一般為可抽形式；泵軸向水推力及轉(zhuǎn)子重量一般由電機(jī)推力軸承承受，泵和電機(jī)之間采用剛性聯(lián)接；泵吐出口位于安裝面基礎(chǔ)之下（型式代號(hào)為XD）。如有要求，也可以由泵承受軸向水推力及轉(zhuǎn)子重量；或其它結(jié)構(gòu)形式的組合（型式代號(hào)為XT、SD、ST）。用戶(hù)如有要求， 也可以設(shè)計(jì)成不可抽式結(jié)構(gòu)形式。

6、 泵本體承受軸向水推力及轉(zhuǎn)子重量時(shí)，泵推力軸承采用稀油潤(rùn)滑，推力軸承部件帶Pt100測(cè)溫元件測(cè)軸承溫度或壓力式溫度計(jì)測(cè)潤(rùn)滑油溫度。

7、 泵軸向密封采用填料密封。

8、 在泵安裝基礎(chǔ)上可以進(jìn)行葉輪與葉輪室（轉(zhuǎn)動(dòng)部分與靜止部分）之間間隙的調(diào)整，操作方便。

9、 從吐出方向往泵看，電機(jī)接線(xiàn)盒與泵外接潤(rùn)滑水接管位于左側(cè)。也可根據(jù)用戶(hù)要求，布置在其它方位。

Structure feature:

1.   Series LB pumps are of vertical single stage and/or multistage centrifugal or     mixed flow with diffuser types.

2.   The following structure types are available for the pump:the discharge opening above and/or under the mounting foundation(Type Code named S and X respectively);the axial thrust force born by the pump and/or by the motor(Type Code named T and D);lubricating water from outside and/or from the pump itself.

3.   The intake sump is of wet pit and/or dry pit types.

Wet pit type:lower part of the pump inundated in the intake sump.

Dry pit type:the water enters into the pump,the suction bellmouth is connected with the inlet  pipe of the pump by means of elbow bend pipe of 90.

4.   Rubber guide bearings and /or the Thordon guide bearings are available for  bearings of the pump.

5.   Generally when the nozzle diameter of the pump is under 1000mm , non pull-out type is adopted for the rotor and the discharge opening is above the mounting foundation(Type Code named ST). In this case the axial thrust force and the weight of the rotor are usually born by thrust bearings of the pump itself and  flexible connection is adopted between the pump and the motor.The thrust force and the weight of the rotor can also be born by the motor if required,or other structure types such as SD,XT,XD are available .Rotor pull-out type can also be adopted if required by clients.

Generally when the discharge diameter of the pump is above 1000mm, pull-out type is adopted for the rotor and the discharge opening is under the mounting foundation(Type Code named XD).In this case the axial thrust force and the weight of the rotor are usually born by thrust bearings of the motor and rigid connection is adopted between the pump

and the motor. The axial thrust force and the weight of the rotor can also be born by

the pump if required,or other structure types such as XT,SD,ST are available .Rotor non pull-out type can also be adopted if required by clients.  

6.   When the axial thrust force and the weight of the rotor are born by pump itself,the thrust bearing of the pump is lubricated with dilute oil and is equipped with a temperature detector Pt100 to detect bearing temperature and a pressure type thermometer to detect the temperature of lubricating oil.

7.   The antielectrochemical corrosion appliance is adopted for the part of the pump contacting the liquid to ensure the service life of the pump when seawater is pumped.

8.   The packing seal is adopted for the axial seal of the pump.

9.   The clearance between the impeller and the impeller chamber,i.e.the rotating component and the static component,can be easily adjusted on the pump mounting foundation.

LB型不可抽式立式長(zhǎng)軸濕坑泵產(chǎn)品主要零部件材質(zhì)Materials Of Major Parts

注：根據(jù)用戶(hù)具體使用要求，可另選其它適合材質(zhì)。鑄鐵材質(zhì)葉輪只適用于閉式葉輪。

Remarks:Other materials are  available at the request of clients.Cast iron is suitable only for closed type impeller.

LB型不可抽式立式長(zhǎng)軸濕坑泵型譜圖

LB型立式長(zhǎng)軸濕坑泵外形尺寸圖(基本型式XD)