Liquid level control system

A technology of liquid level control and liquid level relay, applied in liquid level control, control/regulation system, non-electric variable control and other directions, can solve the problems of inconvenient installation, debugging and maintenance, liquid level stay, etc. The effect of overhaul

Inactive Publication Date: 2012-02-01
无锡出新环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a liquid level control system to solve the problem that the existing liquid level control system cannot make the liquid level stay between the upper limit probe and the lower limit probe, which is inconvenient for installation, debugging and maintenance.

Method used

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Embodiment Construction

[0013] Such as Figure 1~2 As shown, the liquid level control system of the present invention includes an upper limit probe 1, a lower limit probe 2, an auxiliary probe 3, a liquid level relay 4, an AC contactor and a pump, and the upper limit probe 1, the lower limit probe 2, the auxiliary probe 3 and the AC The contactors are respectively connected to the corresponding contacts of the liquid level relay 4 through wires, the pump is connected to the AC contactor through wires, and a switch is also included, and the switch is connected to the connection between the auxiliary probe 3 and the liquid level relay 4. On the wire, or connected between the wires connected between the upper limit probe 1 and the lower limit probe 2 and the liquid level relay 4 respectively.

[0014] Preferably, the switch connected to the wire connecting the auxiliary probe 3 and the liquid level relay 4 is a normally closed button switch 5 .

[0015] Preferably, the switch connected between the wire...

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PUM

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Abstract

The invention discloses a liquid level control system which comprises an upper limit probe, a lower limit probe, an auxiliary probe, a liquid level relay, an alternating current contactor and a pump, wherein the upper limit probe, the lower limit probe, the auxiliary probe and the alternating current contactor are respectively connected with corresponding contacts of the liquid level relay by leads; and the pump is connected with the alternating current contactor by a lead. The system also comprises switches, wherein the switches are connected on the lead connecting the auxiliary probe and the liquid level relay or between the leads which respectively connect the upper limit probe and the lower limit probe with the liquid level relay. The liquid level control system solves the problem that the existing liquid level control system can not enable the liquid level to stay between the upper limit probe and the lower limit probe, is especially suitable for water treatment equipment, and has the advantages of convenience in installation, debugging and overhaul.

Description

technical field [0001] The invention relates to a liquid level control system. Background technique [0002] At present, when it is necessary to control the liquid level of a conductive liquid, a liquid level control system composed of a conductive probe, a liquid level relay, an AC contactor and a pump is usually used. This liquid level control system has three probes that are connected to the corresponding contacts of the liquid level relay through wires, which are auxiliary probes, upper limit probes that control the upper limit of the liquid level, and lower limit probes that control the lower limit of the liquid level. When the liquid level of the conductive liquid is in contact with the upper limit probe or out of contact with the lower limit probe, the liquid level relay and the AC contactor will act to cut off the power supply and stop the pump. The disadvantage of this liquid level control system is that the liquid level cannot stay between the upper limit probe an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D9/12
Inventor 匡建兴
Owner 无锡出新环保设备有限公司
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