This standard specifies requirements for centrifugal pumps, including pumps running in reverse as hydraulic power recovery turbines (HPRTs), for use in petroleum, petrochemical, and gas industry process services.
本标准规定了石油、石化和天然气工业领域中使用的离心泵(包括反向运转作为水力能量回收透平(HPRTs))的要求。
::: tip
解释:HPRTs就是液力透平,常规的液力透平就是反转运行的泵。常规泵的入口是液力透平的出口,泵的出口就是液力透平的入口。通过高压液体进入透平,然后做功后变成低压液体流出透平。液力透平常用在加氢装置中或天然气净化装置中。
:::
This standard is applicable to overhung pumps, between-bearings pumps, and vertically suspended pumps (see Table 1). Section 9 provides requirements applicable to specific types of pumps. All other sections of this standard are applicable to all pump types. Illustrations are provided of the various specific pump types and the designations assigned to each specific type.
本国际标准适用于悬臂泵、两端支撑泵和垂直悬吊泵(见表 1)。第 9 章规定了特定类型泵的适用要求。本标准的所有其他条款适用于所有类型的泵。本标准提供了各种特定类型泵的图例以及每种特定类型泵的代称。
::: tip
解释:第9章的部分只适用于特殊类型泵,本标准的其他条款适用所有泵型。
:::
Relevant industry operating experience suggests pumps produced to this standard are suitable for pumping liquids at conditions exceeding any one of the following:
相关行业的运行经验表明,泵送液体在超过以下任一条,适合按照本标准生产:
::: tip
解释:这句话意思:如下工艺条件下的泵在符合本标准的情况下,运行良好,并不是说只有符合如下条件的泵才适用本标准。
:::
discharge pressure (gauge): 275 psi; 19.0 bar (1900 kPa);
排出压力(表压):275 psi; 19.0 bar (1900 kPa)
suction pressure (gauge): 75 psi; 5.0 bar (500 kPa);
吸入压力(表压):75 psi; 5.0 bar (500 kPa);
pumping temperature: 300 °F (150 °C);
泵送温度:300 °F (150 °C)
rotational speed: 3600 r/min;
转速:3600 r/min;
::: tip
解释:美国标准电源的频率是60HZ,因此对应转速3600rpm
:::
rated total head: 400 ft (120 m);
额定总扬程:400 ft (120 m)
impeller diameter, overhung pumps 13 in. (330 mm).
叶轮直径,悬臂泵:13 in. (330 mm)
::: warning
NOTE For sealless pumps, reference can be made to API 685.
注:对于无密封泵,参考API685
:::