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  • 商品名称: TD、TDA卧式多级筒形泵
  • 商品编号: 914
  • 上架时间: 2015-01-19
  • 浏览次数: 163

TDTDA卧式多级筒形泵

产品概述

TDTDA系列为卧式多级、内壳体径向剖分或轴向剖分、双层壳体结构中心支撑式多级离心泵。泵设计符合API610标准,为标准BB5型泵。

 

适用范围

TDTDA系列泵适用于高温、高压的工作场合,特别是易遭受热冲击的工作条件,并且在输送压力较高的易燃和有毒的介质时操作更为可靠。

 

电厂

炼油厂

石油化工厂

煤化工工程

气体制炼

制冷工程

海上石油平台

 

运行参数

    DN50400mm

    Q 6720m3/h

    H   2500m

工作压力P  26.0MPa

工作温度T-80℃~450

 

型号标识

TD (A80  120 × 12  A

          ⑥

 系列代号

 内壳体轴向剖分

 设计流量m3/h

 单级扬程(m

 泵级数

水力模型组别

 

设计特点

◆ 水力模型:每个规格都有两个或三个水力模型,可以根据工况条件进行最佳的选择。

 

TDTDAHorizontal Multi-Stages Style Barral Pump

General

Horizontal,multi-stages, radially split or axially split, barrel type centerline mounted multi-stages centrifugal pumps.The series pumps compile with API610 standard BB5 type.

Application

TD(A) series pumps are designed for high temperature and high pressure working conditions,especially for conditions intended to suffering thermal shock.The pump operates more reliably when pumping flammable or hazardous liquid with higher pressure.

Refineries

    ■ Power plants

Petrochemical plants

Coal processing

Gas processing

Cryogenics engineering

Offshore industry

Performance

Nozzle sizes DN    50400mm

Capacities Q       6720m3/h

Head H            2500m

Operating pressure P 26.0MPa

Operating tempeature T-80450

Symbol

TD (A80  120 × 12  A

          ⑥

 Series

 Inner casing axially split

 Design capacitiesm3/h

 Single headsm

 Pump stages

Hydraulic model

Design

◆ Hydraulic modelsEach pump size have two or three types of hydraulic modelsfor different operating conditions the best efficient hydraulic model can be selected.

Balancing partsThe balancing drum balances most of the hydraulic axial forces.The residual thrust is

◆ 平衡机构:采用平衡鼓结构,平衡掉大部分的轴向力,残余轴向力由推力轴承来承受。

 

◆ 筒体:双层壳体结构,后拉出式设计,内壳体为段式多级或轴向剖分离心泵。筒体采用中心支撑,底部带有定位孔。高压时(大于15MPa)采用锻造。

 

◆ 支撑:刚性轴,重工况承载能力的轴承支撑设计;油环润滑的滚动轴承及滑动轴承配水冷却或强制循环润滑的滑动轴承。

 

◆ 管口:吸入管、吐出管压力等级相同,均竖直向上布置。管口载荷符合API610标准。

 

◆ 轴封:密封腔体尺寸符合API682标准,配集装式单封双封或串联式机械密封。轴封只承受吸入压力。

 

 

碳钢,铬钢,铬钼不锈钢。

API610标准材料等级:S-5S-6C-6A-7A-8D-1D-2

根据介质特性,也可选用其它材质。

 

BB4型泵的比较优势

BB4型单壳体节段式多级离心泵比较,有以下技术优势:

可以承受更高的压力。只有外筒体和泵盖承受出口压力,节段式内壳体仅承受压差,避免了节段间的泄漏可能。泵盖和筒体间有可靠的承压垫片。

避免热冲击和高温变形影响。内壳体完全浸没在介质中,与转子部件均匀受热,没有泵变形危险。泵在高温情况下,必要时可无需预热直接启动。

拆卸维修方便。后拉出式结构,内壳体和转子部件可完全抽出,无需拆卸进出口管路。

安全性好。在输送危险介质时,由于有外筒体的结构,最大程度地减少了泄漏途径和泄漏可能。

 

 

 

absorbed by thrust bearing.

◆ Barrel casingDouble casingback pulling out constructionand the inner casing are section-ring casings or axially split casings. The barrel casing centerline mounted with set pin hole in the bottom. Ductile cast should be used when pressure is greater than 15MPa.

◆ Support structuresHeavy duty shaft design and bearings support having heavy duty carrying capabilityroller bearings, or sleeve bearings with oil ring lubricatedwater cooledor sliding bearings with forced oil circulation.

◆ NozzleThe suction and discharge nozzied with same pressure grade are vertically arranged. Allowable nozzle loadings compile with API610.

◆ Shaft sealingThe shaft sealing chamber compiles with API682 specifications; single, double or tandem cartridge type mechanical seals are available. The pressure in seal chamber is only the same as suction.

Materials

Carbon steel, chrome steel, or Cr-Ni-Mo stainless steel.

Standard API610 material classesS-5, S-6, C-6, A-7, A-8, D-1, D-2. Other choices can be selected when needed.

Superiorities

The pump have its own superiorities compared with BB4 type pumps.

Higher pressure sustaining possibility. Only the barrel and casing cover withstand the discharge pressure, Section-ring casings only wihtstand the pressure diference,the leaking ways is minimized.The gaskets are reliable between the barrel and the casing cover.

Minimize the effect of heat shock and deformation. Both the inner casings and the rotors are surrounded by pumped liquid and uniformly heated. For high temperature operating conditions, the pump evenly permit start-up without preheating.

Easy dismantling and maintenaces. The inner unit including the casing and rotors can be removed entirely from the barrel without dismantle the piping lines.

Excellent safety. When pumping hazardous liquids, the possibility of leaking is minimized because of the barrel.