Air conditioning system water flow switch and air conditioning system

Abstract

The invention provides an air conditioning system water flow switch and an air conditioning system, and relates to the technical field of water flow switches. The technical problem that the water flowswitch is easy to adsorb iron chips and fail when the water flow switch does not work is solved. The air conditioning system water flow switch comprises a target rod. One end of the target rod is rotatably arranged on the water flow switch, and a target piece is arranged on the other end. The target piece is immersed in a medium. The switch further comprises an excitation device arranged on the target rod. When the air conditioning system runs, the excitation device is energized and generates magnetic force capable of controlling the closing of the water flow switch. When the air conditioningsystem is stopped, the excitation device is powered off. According to the invention, the excitation device is arranged on the target rod; when the water flow switch does not work, since the excitation device has no magnetic force, the water flow switch is not adsorbed by iron chips and is prevented from magnetism weakening; the magnetic strength is enhanced; each time the excitation device is powered off, adsorbed iron chips fall; and the service life of the water flow switch is greatly increased.

Description

technical field [0001] The invention relates to the technical field of water flow switches, in particular to a water flow switch for an air-conditioning system and the air-conditioning system. Background technique [0002] The water flow switch is also called a flow switch or a flow sensor, and the English name is Flow switch or Water sensor. It is a product that protects the system by detecting the flow in the pipe or stopping the output signal. [0003] At present, the water flow switch, as the detection device of the water flow and flow rate in the shell tube, is an indispensable protection device in the chiller and air conditioning system. It can ensure the safe and efficient operation of the air conditioning system; it is widely used in many large units. The existing water flow switch controls the on-off of the switch through the micro-action of the target plate to monitor whether the water flow in the shell is normal; the target plate is usually made of aluminum alloy,...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a water flow switch for an air-conditioning system based on an excitation type and an air-conditioning system with the water flow switch, so as to solve the problem in the prior art that the water flow switch is easy to absorb iron filings when it is not working, causing the switch to fail question

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