进口两级双吸流程泵(欧美进口十大品牌)

英国GRIMM格林进口两级双吸流程泵 UK GRIMM imported two stage double suction flow pump

英国GRIMM格林进口两级双吸流程泵概述：   

          进口两级双吸流程泵是英国格林公司参照API610第10版设计的两级双吸流程泵，设计压力为6MPa；径向部分，中心支撑，泵体为双蜗壳结构，平衡径向力，泵进出口位于顶部，进出口一级吸水室与压力室过渡流道与二级压力室同铸一体，结构体积小；对称双泵结构，维护简易灵活；首级叶轮为双吸结构，可最大可能降低汽蚀余量，轴向力自平衡；刚性轴设计，保证泵平稳运转；密封及冲洗系统按API682规范设计，可安装API682规范推荐的所有密封及冲洗方案。

         该系列泵是为满足输送有大颗粒及较为苛刻和重工位的需要而特殊设计，为尽快适应炼油厂改扩建装置中设备的需要，英国格林研制开发了两级双吸离心流程泵，该系列产品完全符合API610标准规范，主要适用于炼油厂装置中的常压塔底泵、原油泵、减压泵等。该系列产品具有可靠性高，通用化程度高，使用寿命长等特点。

         泵的转向：从原动机往泵着为逆时针反向旋转。

英国GRIMM格林进口两级双吸流程泵的管路系统：

冷却水：

         为了使泵能够正常工作，对轴封腔、轴承体和支架必须根据工作条件进行不同形式的冷却，其冷却水的管路布置符合API610规范上的规定，一般在泵上已装备齐。仅留进出口接头。

         冷却水管路的最小名义直径为1/2。

         叶轮为整体铸造，且随转子一起做动平衡，它与轴是用健传动，转子是两端支承。

         该系列泵的轴承体有两种结构形式，一种为径向球轴承和向心推力球轴承。另一种为径向滑动轴承和向心推力球轴承。

         在检修时不必拆卸吸入或吐出管路就很容易地拆出叶轮、轴承、轴封等，两级双吸流程泵采用柔性膜片式加长联轴器部件，且与泵轮为锥形配合，拆装非常方便。

英国GRIMM格林进口两级双吸流程泵结构特点：

          进口两级双吸流程泵为径向部分蜗壳式两级双吸两端支承式结构形式。

          壳体为径向部分蜗壳式，其安装方式为水平中心支承，特别适用于输送高温、高压及以及易燃、易爆或有毒的液体，泵的吸收法兰和吐出法兰均铸在泵体上，且均垂直向上；轴封腔(填料函)和泵盖是铸成一体，它可以装填料密封及平衡型、波纹管型、串联型机械密封，轴封腔外面铸有可供选择的水冷夹套，水冷腔的配备必须是特别提出要求或当输送介质为水的温度超过66℃以及碳氢化合物温度超过120℃时用。

         密封油的压力一般高于密封腔的压力0.07～0.1MPa(约0.7～1kgf/cm2)，如果输送介质属于易汽化的，则应高于汽化压力0.175～0.2MPa(约1.75～2kgf/cm2)。

         管路上所需的冷却器、过滤器、孔板、流动指示器等部件，均由泵厂配齐出厂。

         冷却水量，每一支路建议为0.5～0.7m3/h其压力为0.2～0.3MPa(2～3kgf/cm2)。

密封系统密封油：

         油封是根据泵输送介质及稳定、压力等工作条件不同的密封，其密封管路系统v布置应符合API规范的规定，用户不特别提出时，由泵厂配装。

         密封油的冲洗压力和油量，由泵厂自行考虑，只当需要外供时，才提供数值，每个泵腔的封油量如下：

密封名义直径(mm)：13～17；48～59；60～84；85～95；96～133

平均封油量(L/s)：0.05；0.067；0.1；0.13；0.18

英国GRIMM格林进口两级双吸流程泵技术参数： 

流       量：600-1700m3/h

扬       程：250-370m

转       速：2970r/min

功       率：900-1600kw

使用温度：-45℃～+450℃

英国GRIMM格林进口两级双吸流程泵适用范围： 

          主要适用于炼油厂装置中的常压塔底泵、原油泵、减压泵等。

UK GRIMM imported two stage double suction flow pump summary:

           The import of two stage double suction pump process is British green company according to the two stage double suction pump design of the tenth edition of the API610, the design pressure is 6MPa; the support center radial section, the pump body is a double volute pump, radial force balance, import and export import and export in the top level of suction chamber and the pressure chamber and the flow transition two pressure chamber with the cast body, small volume; symmetrical double pump structure, simple maintenance and flexible; heads for double suction impeller structure, can reduce the maximum possible NPSH, axial force self balancing; rigid shaft design, to ensure the smooth running of the pump; sealing and flushing system according to the API682 standard design, all sealing and flushing plan install the API682 code.

         This series of pumps is to meet the needs of large particles and conveying a harsh and heavy work and special design, in order to meet the needs of the refinery equipment expansion device as soon as possible, Green developed two stage double suction centrifugal pump, the series of products in full compliance with the API610 Standard Specification, mainly used in oil refining plant the tower bottom pump, oil pump, vacuum pump etc.. This series of products have the characteristics of high reliability, high degree of generalization and long service life.

        Pump turn: turn counterclockwise from the prime mover to the pump.

UK GRIMM imported two stage double suction flow pump piping system:

Cooling water:

         In order to enable the pump to work properly, the seal cavity, a bearing body and a bracket must be carried out in different forms according to the working conditions of cooling, the cooling water pipe arranged in accordance with the provisions on API610 specification, usually in the pump is equipped with. import and export only.

        The minimum nominal diameter of the cooling water pipe is 1/2.

        The impeller is integrally cast and is dynamically balanced with the rotor. The shaft is driven with a straight shaft, and the rotor is supported at both ends.

        There are two kinds of bearings in this series of pumps. One is radial ball bearing and the other is radial thrust ball bearing. The other is radial thrust bearing and radial thrust ball bearing.

        When maintenance without disassembling the inhalation or spit pipe can easily remove the impeller, bearings, shaft seal, two stage double suction pump flow using the flexible diaphragm type lengthened coupling parts, and the pump wheel is tapered, very convenient disassembly.

UK GRIMM imported two stage double suction flow pump structure characteristics:

           imported two stage double suction flow pump is radial part, volute type, two stage, double suction, supporting structure at both ends.

        A radial part volute, the installation for the level of support center, especially suitable for conveying high temperature and high pressure, and flammable, explosive or toxic liquid, the pump absorption flange and flange are cast out on the pump body, and are vertical upward; the seal cavity (stuffing) and the pump cover are cast one, it can be packing seal and balance type, bellows type, series mechanical seal, the seal cavity outside the casting cooling alternative jacket water cooling cavity must be equipped with special request or when the transmission medium is water temperature more than 66 DEG C and hydrocarbons at the temperature above 120 DEG C for.

       Sealing oil pressure is generally higher than the pressure of the sealing chamber 0.07 ~ 0.1MPa (about 0.7 ~ 1kgf/cm2), if the transport medium is easy to vaporize, it should be higher than the pressure of vaporization 0.175 ~ 0.2MPa (about 1.75 ~ 2kgf/cm2).

       Cooler, filter, orifice, flow indicator and other components required for the pipeline, factory installed by pump.

       Cooling water quantity, each branch is recommended to be 0.5 ~ 0.7m3/h, its pressure is 0.2 ~ 0.3MPa (2 ~ 3kgf/cm2).

Sealing system seal oil:

       Oil seal is based on pump delivery medium and stability, pressure and other working conditions of different seals, and its sealing piping system V layout should comply with the provisions of the API specification, the user does not Specifically, the pump.

       The seal oil flushing pressure and the amount of oil pump, by itself, only for the needs, to provide numerical quantity of each sealing oil pump cavity are as follows:

Nominal nominal diameter (mm):13 to 17; 48~59; 60~84; 85~95; 96~133

Average sealing oil (L/s):0.05; 0.067; 0.1; 0.13; 0.18

UK GRIMM imported two stage double suction flow pump technical Parameters:

Flow rate: 600-1700m3/h

Lift: 250-370m

Speed: 2970r/min

Power: 900-1600kw

The service temperature is -45 DEG C to +450 centigrade

UK GRIMM imported two stage double suction flow pump scope of application:

           The utility model is mainly suitable for the atmospheric pressure tower bottom pump, crude oil pump, pressure reducing pump, etc. in an oil refinery plant.