Axial chemical pump with salt-resistant and corrosion-resistant pump shaft

Abstract

The invention discloses an axial chemical pump with a salt-resistant and corrosion-resistant pump shaft. One end is fixedly connected with a water outlet pipe through a flange, one end of the water inlet is fixedly connected with a water inlet pipe through a flange, the second branch pipe is connected through the outlet pipe, and a return pipe is connected through the water inlet pipe. The top of the return pipe and the second branch pipe is slidably provided with a first branch pipe, and a lifting device is connected to the first branch pipe. The lifting device includes a bottom plate, and the bottom of the bottom plate is fixedly connected with a first motor by bolts. The output shaft of a motor passes through the bottom plate, and one end thereof is connected with a screw rod through a coupling, the top of the bottom plate is correspondingly equipped with a guide rod, and the top end of the screw rod is equipped with a first electromagnet. The present invention has the function of preventing The characteristics of throttling damage and convenient on-off.

Description

technical field [0001] The invention relates to the technical field of chemical pumps, in particular to an axial chemical pump whose pump shaft is resistant to salt and corrosion. Background technique [0002] Various chemical pumps, such as centrifugal pumps, oil transfer pumps and seawater lift pumps, are used in marine engineering consisting of oil production platforms and gathering pipelines. Due to the high corrosiveness of seawater, materials with higher strength are required to adapt to the particularity of offshore oil pumps. [0003] However, during the use of existing petrochemical pumps, once the outlet valve is closed, the loss of the pipeline system will be greatly increased, the flow rate will be greatly reduced and its power will be directly affected. Therefore, the outlet throttling technology is often used on chemical pumps. Install a throttling baffle on the pipeline, and close the baffle if the flow rate needs to be reduced. However, this method is not su...

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Problems solved by technology

[0003] However, during the use of existing petrochemical pumps, once the outlet valve is closed, the loss of the pipeline system will be greatly increased, the flow rate will be greatly reduced and its power will be directly affected. Therefore, the outlet throttling technology is often used on chemical pumps. Install a throttling baffle on the pipeline, and close the baffle if the flow rate needs to be reduced. However, this method is not suitable for petrochemical pumps with steep drop-off performance curves. If there are multi-stage pumps, axial flow may even occur. Power mutation damage and other issues

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