CN201546259U - An automatic control system for water collection well - Google Patents

Abstract

The utility model discloses an automatic control system for a water collection well, which comprises a water pump, and an AC contact relay is connected to the water pump through a second fuse; the main switch of the AC contact relay is provided with a first limiting position in series switch, the auxiliary switch of the AC contact relay is provided with a second limit switch in parallel; a first fuse is provided between the first limit switch and the main switch; the first limit switch is connected with a first A water level control device, the second water level control device is connected to the second limit switch. Both the first water level control device and the second water level control device are water bottles filled with water. The utility model has the advantages of low manufacturing cost, less energy consumption, reliable action, and works normally since it was put into use.

Description

An automatic control system for water collection well

Technical field:

The utility model belongs to the field of automatic control, and relates to a device for automatically controlling a water pump, in particular to an automatic control system for a water collection well.

Background technique:

The water collection well of the main powerhouse is built to collect the tail water, leakage and other remaining water of the two turbines. When the water collection well is full, the water is discharged to the downstream tail water with a submersible pump. However, when the water collection well was first built, no automatic control drainage system was installed, and it was completely inconvenient for the on-duty personnel to close the gate and drain water at regular intervals, and the water collection well was close to the No. 1 generator and machine pit, where 10KV outgoing cables and current For many electrical equipment such as transformers and electrical secondary lines, sometimes due to the carelessness of the personnel on duty, they forget to close the switch and drain water, and the water will flow into the generator and the machine pit. After a long time, it will cause very serious consequences.

Utility model content:

The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art, and provide an automatic control system for a water collection well, including a water pump, and an AC contact relay is connected to the water pump through a second fuse; A first limit switch is arranged in series on the main switch, and a second limit switch is arranged in parallel on the auxiliary switch of the AC contact relay; a first fuse is arranged between the first limit switch and the main switch; the A first water level control device is connected to the first limit switch, and a second water level control device is connected to the second limit switch. Both the first water level control device and the second water level control device are water bottles filled with water.

The utility model has the advantages of low manufacturing cost, less energy consumption, reliable action, and works normally since it was put into use.

Description of drawings:

Fig. 1 is the structural representation of automatic control system of the present utility model;

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1, an automatic control system for a water collection well includes a water pump, an AC contact relay is connected to the water pump through a second fuse; the main switch of the AC contact relay is provided with a first limit switch in series A second limit switch is arranged in parallel on the auxiliary switch of the AC contact relay; a first fuse is arranged between the first limit switch and the main switch; a first water level is connected to the first limit switch A control device, the second limit switch is connected with a second water level control device. Both the first water level control device and the second water level control device are water bottles filled with water.

Use two limit switches, one AC contact relay and two mineral water bottles. Install the two limit switches at the outlet of the water collection well, tie them to the two mineral water bottles with two reliable wire ropes, fill the bottles with water, and hoist them to the lowest water level of the water collection well (bottle No. Water level (No. 2 bottle), the other end of rope is tied on two limit switches (being No. 1 limit switch SQ1 and No. 2 limit switch SQ2), power supply negative pole accesses the other end of relay coil.

working principle:

When the water level of the collection well is lower than the lowest water level of the No. 1 bottle, there is no action; when the water level rises to the lowest water level of the No. 1 bottle, the No. 1 bottle floats, and the No. 1 limit switch SQ1 is closed; when the water level rises to the No. 2 bottle When the water level is the highest, the No. 2 limit switch SQ2 is closed, and the relay wire bag is energized, the contact is closed, the water pump power supply is connected, and the water pump starts to drain water.

When the water level drops below the position of the No. 2 bottle, the No. 2 limit switch SQ2 is disconnected, and the water pump continues to discharge water because the passage is still maintained; when the water level is lower than the position of the No. 1 bottle, the No. 1 limit switch SQ1 is disconnected. The relay wire pack is de-energized, the power supply of the water pump is disconnected, and the water pump stops draining. So reciprocating operation.

The advantages of this design are: low cost, less use, reliable action, and has been working normally since it was put into use.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments. It cannot be determined that the specific embodiments of the present invention are limited thereto. Under the circumstances, some simple deduction or replacement can also be made, all of which should be regarded as belonging to the scope of patent protection determined by the submitted claims of the present invention.

Claims (2)

1. a collecting well automatic control system comprises water pump, it is characterized in that: be connected with one by second fuse on the described water pump and exchange the contact relay; Series connection is provided with first limit switch on the main switch of described interchange contact relay, has been arranged in parallel second limit switch on the auxiliary switch of interchange contact relay; Be provided with first fuse between described first limit switch and the main switch; Be connected with first water-level control apparatus on described first limit switch, be connected with second water-level control apparatus on described second limit switch.

2. a kind of according to claim 1 collecting well automatic control system is characterized in that: first water-level control apparatus and second water-level control apparatus all are the water bottles of filling water.

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