Mechanical lifting start-stop control system for liquidometer water pump

A technology of start-stop control and liquid level gauge, which is used in pump control, mechanical equipment, liquid variable capacity machinery, etc., can solve problems such as melting and production accidents, and achieve the effect of convenient operation and simple structure.

Pending Publication Date: 2020-01-17
TANGSHAN IRON & STEEL GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(Polypropylene plastic is resistant to acid and corrosion, but its melting point is 164 degrees.) Once the signal to stop the pump is not sent out in time, the pump core of the pit pump will melt due to the high temperature generated by the friction of the silicon carbide mechanical seal, resulting in a production accident.

Method used

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  • Mechanical lifting start-stop control system for liquidometer water pump

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the examples.

[0015] The invention discloses a start-stop control system for a mechanical lifting liquid level meter water pump, which comprises a lifting rod platform 12 arranged on the upper part of an acid circulation pit 7, an opening arranged on the lifting rod platform 12, connected to the bottom of the lifting rod platform 12 and The buoy guide barrel 11 located in the acid circulation pit 7, the buoy 13 arranged in the buoy guide barrel 11 and in contact with the acid liquid in the acid circulation pit 7, is connected to the top of the buoy 13 and passes through the opening of the lifting rod platform 12 and The hollow lifting rod 3 that extends out of the acid circulation pit 7, the lifting rod guide column 4 that is sleeved in the lifting rod 3 for the lifting rod 3 to move up and down, the contact point 14 that is arranged on the outer wall of the lifting rod 3, and is arrang...

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Abstract

The invention relates to a mechanical lifting start-stop control system for a liquidometer water pump. The system comprises a high-level limit switch, a low-level limit switch, a lifting rod, a lifting guide column, an angle guide column, a guide pipe, an acid circulation pit, a pit pump, a water suction pipe, a drainage pipe, a buoy guide barrel, a lifting rod platform, a buoy and a contact. According to the device, the contact triggers high and low limit to give out a pump start-stop signal, and the device is used for achieving the aims of drainage for the acid pickling pit pump and controlover start and stop of the pump and has the advantages of being reliable, stable, simple in structure, convenient to operate and suitable for being applied and installed in a cold rolling acid pickling production line.

Description

technical field [0001] This patent application belongs to the technical field of cold-rolled pickling equipment, and more specifically relates to a start-stop control system for a mechanical lifting liquid level gauge water pump. Background technique [0002] Pickling pits are used to collect spent acid and waste water in any case of spillage. According to the wastewater treatment requirements: the pit has a 2-layer plastic lining, a float type liquid level measuring device, two acid-proof sewage pumps with water tanks. The sewage pump is responsible for discharging the acidic wastewater in the pit to the neutralization station. Due to the low error tolerance rate of the float type liquid level measuring device for controlling the liquid level, false alarms are often made, which affects the output of the sewage pump signal and the drainage effect. And because the pit pump is made of silicon carbide except for the mechanical seal, most of the rest are made of polypropylene ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/025
CPCF04B49/025
Inventor 高猛王琦江大伟刘安董学军
Owner TANGSHAN IRON & STEEL GROUP
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