Petrochemical process pump

A petrochemical and process pump technology, applied in radial flow pumps, pumps, components of pumping devices for elastic fluids, etc., can solve the problem of not satisfying the user's pump flow and head, and reduce local head loss. , the fluid is smooth and smooth, the structure is compact and complete

Pending Publication Date: 2020-08-18
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to different actual needs and working conditions, for example, the petrochemical pump with patent number ZL 20092007218.1 adopts a single-stage single-suction structure, which sometimes does not meet the flow and head requirements of the user's pump.

Method used

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  • Petrochemical process pump
  • Petrochemical process pump

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them.

[0023] refer to figure 1 , the pump shaft is sequentially connected to the first stage impeller (19), interstage sleeve (7), pump body (20), pump body mouth ring (8), pump cover (4) (11), mechanical seal device from the center to both ends (3) (12), bearing parts, bearing (23), oil throwing ring (17), shaft end retaining ring (24) and shaft coupling (16) motor etc. The motor is directly driven, and the coaxiality of the connection between the motor shaft and the pump shaft needs to be checked regularly. The fluid flowing in through the semi-spiral suction chamber (9) passes through the first-stage double-suction impeller, and then flows into the lower pump through the transition channel. The first stage and the next stage are single-su...

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Abstract

The invention discloses a two-stage horizontal petrochemical process pump. The two-stage horizontal petrochemical process pump comprises a suction chamber, a transition section, a pumping chamber, a pump body, a pump cover, a shaft, an impeller, a mechanical seal, a balance hole, a bearing component, an oil slinger, a coupler, an interstage sleeve, a bearing, a bearing support and a sealing component, a first-stage impeller adopts double suction, a second-stage impeller adopts single suction, the first-stage impeller and the second-stage impeller are open impellers, the requirements of different users for the lift and the flow of the pump are met, the suction chamber is a semi-spiral suction chamber, the pumping chamber is a spiral double-volute single-outlet pumping chamber, the pump cover and the pump body are different from pump covers and pump bodies of most pumps on the market, due to the fact that the pump covers and the pump bodies convey high-temperature and high-pressure liquid, structural particularity is achieved, and the mechanical seal is a single-end-face balance type seal. Besides certain structural advantages, the pump has the advantage that radial force acting on the impeller can be balanced under various working conditions. The upper inlet and the upper outlet are formed, all components are compact in structure, and the pump is good in sealing performance, excellent in performance, safe, reliable, good in cavitation performance and wide in application range.

Description

technical field [0001] The invention relates to the technical field of energy and chemical industry, in particular to a petrochemical process pump. Background technique [0002] The petrochemical process pump described in the present invention is widely used in various industrial product fields, and can transport petrochemical liquids with relatively high temperature and low temperature, so higher requirements are put forward for the performance of the product and its various indicators. Require. Due to different actual needs and working conditions, for example, the petrochemical pump with patent number ZL 20092007218.1 adopts a single-stage single-suction structure, which sometimes does not meet the flow and head requirements of the user's pump. In order to overcome the above-mentioned deficiencies in the prior art, there is an urgent need for a two-stage petrochemical process pump to solve the above-mentioned problems. Contents of the invention [0003] The purpose of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D1/06F04D29/42F04D29/58F04D29/62F04D29/06F04D29/66
CPCF04D1/006F04D1/06F04D13/06F04D29/061F04D29/426F04D29/4273F04D29/586F04D29/628F04D29/669
Inventor 靳遵龙任纪云陈宁光王鹏刘勇豪刘洋李宁
Owner ZHENGZHOU UNIV
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