Automatic water station sampling device

Abstract

The invention discloses an automatic water station sampling device. The device comprises a windlass, a bracket, a hoisting steel cable, a lifting arm, a submersible pump and a water sampling hose, wherein one end of the bracket is fixedly connected with a bearing body, and the other end of the bracket is provided with a leading sheave; one end of the hoisting steel cable is connected with the windlass, and the other end of the hoisting steel cable is connected with one end of the lifting arm through the leading sheave; the end, connected with the hoisting steel cable, of the lifting arm is connected with the submersible pump, and the other end of the lifting arm is hinged with a wall body; and one end of the water sampling hose is connected with the submersible pump, and the other end of the water sampling hose is communicated with a water sampling hard pipeline along the lifting arm. According to the automatic water station sampling device, a spacing support is arranged on the leading sheave to prevent hazard caused by unexpected falling of the hoisting steel cable; and a limiting structure is arranged on a support casing, is used for limiting the up and down lifting angle of the lifting arm, and has a certain protecting effect.

Description

technical field [0001] The invention relates to the technical field of water quality monitoring equipment, in particular to a water sampling device for an automatic water station. Background technique [0002] The first problem that needs to be solved for the normal operation of the water quality monitoring station is the water intake and distribution scheme, especially the water intake problem of the reservoir-type water quality monitoring station is even more complicated. At present, there are usually two water intake schemes: [0003] 1. Self-priming pump: build a pump room on the bank of the reservoir, or use a buoy as a carrier to pump water to the station building through a booster self-priming pump; [0004] 2. Submersible pump: use the buoy as the carrier, fix the submersible pump below the water surface, and pump the water to the station building through the submersible pump; [0005] The water level of the reservoir fluctuates greatly during the flood season and t...

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Problems solved by technology

[0005] The water level of the reservoir fluctuates greatly during the flood season and the dry season, and the flow velocity changes greatly. Although the above two methods temporarily solve the water intake problem of the reservoir-type water quality monitoring station, there is a large fluctuation in the water level or flow velocity, especially at the gate of the reservoir. The water intake device must bear huge water impact when releasing water at the gate; in addition, under complex conditions such as freezing in winter and thawing in spring, the collision and extrusion between ice surfaces may cause damage to water collection pipelines and water collection devices. The above two water intake methods are difficult to meet the operation needs of the water quality automatic monitoring station in these environments

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