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Centrifugal circulating water pump of sulphur acid making device

A technology for circulating water pumps and sulfuric acid production, which is applied to non-variable pumps, components of pumping devices for elastic fluids, pumps, etc., and can solve problems such as waste of resources, excess flow, and power waste of circulating water pumps , to avoid waste and achieve the effect of flow regulation

Inactive Publication Date: 2014-04-30
SHANDONG BOFENG LIZHONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the sulfuric acid plant, a single circulating water pump sometimes cannot meet the flow requirements. At this time, multiple pumps are usually used in parallel operation, but often the parallel operation of multiple circulating water pumps will exceed the required flow rate, resulting in waste of resources
In general, the circulating water flow can be controlled by closing part of the outlet valve, but this method will also cause part of the power of the circulating water pump to be wasted while controlling the water flow.

Method used

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  • Centrifugal circulating water pump of sulphur acid making device

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Comparison scheme
Effect test

Embodiment 1

[0012] This embodiment includes a water pump impeller and a water outlet pipe, the inlet angle of the water pump impeller is 40 degrees, the outlet angle of the water pump impeller is 25 degrees, and the inner diameter of the water outlet pipe is 85 mm.

[0013] In this embodiment, the present invention re-selects the inner diameter of the water pump impeller and the water outlet pipe. The original water pump body and other components still use the original pump set equipment, and the water pump model is MP901. Before work, the pump body and the water inlet pipe tank are full of water to form a vacuum state. When the water pump impeller rotates rapidly, the blades promote the water to rotate rapidly. The improved water pump impeller and the inner diameter of the water outlet pipe will promote the rotating water to generate a small centrifugal force. Reduce the head of the circulating water pump, increase the flow rate and reduce the power under the condition of constant pressur...

Embodiment 2

[0016] The model of the water pump improved in this embodiment is the same as in Embodiment 1, wherein the inlet angle of the water pump impeller is 45 degrees, the outlet angle of the water pump impeller is 30 degrees, and the inner diameter of the outlet pipe is 100 mm. The working principle of this embodiment is exactly the same as that of Embodiment 1.

[0017] After testing and running, it was found that the daily power consumption of the centrifugal circulating water pump was greatly reduced after the transformation. At the same time, the outlet pressure reached the design pressure, and the flow rate also met the production demand. The operating power decreased by 84kW compared with before the transformation, and the power saving rate was 25%.

[0018] The above two centrifugal circulating water pumps that have undergone energy-saving transformation are applied to the sulfur acid plant. After the test operation, the power consumption per ton of acid in the sulfur acid pla...

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Abstract

The invention discloses a centrifugal circulating water pump of a sulphur acid making device. The water pump comprises a water pump impeller and a water outlet pipe, wherein the inlet angle of the water pump impeller is from 40 to 50 degrees and the outlet angle of the water pump is 20 to 30 degrees in comparison with an existing water pump impeller, and the inner diameter of the water outlet pipe is 80-100mm. By improving the angle of the water pump impeller and the inner diameter of the water outlet pipe, the centrifugal force and pump head generated by the water pump impeller can be changed when the water pump impeller is rotated at high speed, so that the flow adjustment can be realized, the partial waste of the power of the water pump caused by controlling the water flow through an outlet valve of a closing part can be prevented when a plurality of water pumps are operated in parallel, and the effects of high efficiency and energy saving can be realized.

Description

technical field [0001] The invention relates to a circulating water pump, in particular to a centrifugal circulating water pump of a sulfuric acid plant. Background technique [0002] In the sulfuric acid plant, a single circulating water pump sometimes cannot meet the flow requirements. At this time, multiple pumps are usually used in parallel operation, but often the parallel operation of multiple circulating water pumps will exceed the required flow rate, resulting in waste of resources. In general, the circulating water flow can be controlled by closing part of the outlet valve, but this method will also cause part of the power of the circulating water pump to be wasted while controlling the water flow. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a centrifugal circulating water pump of a sulfuric acid plant, which can save the power of the circulating water pump while ens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/22F04D29/42C01B17/74
CPCY02P20/10
Inventor 高艳红李文成刘建光刘涛赵健
Owner SHANDONG BOFENG LIZHONG CHEM