Photoelectric detection thermostatic controlled valve

Abstract

The invention relates to a temperature-sensing valve, in particular to a photoelectric detection constant temperature-sensing valve which can precisely adjust the water inlet flux, keeps constant water outlet temperature and has long service life and high automation degree. The temperature-sensing valve is provided with a valve body, a valve core, a motor, a gear transmission component and a detection control circuit; the valve body is provided with a valve chamber, a cold water inlet passage which is communicated with the valve chamber, a hot water inlet passage and a mixed water outlet passage; the valve core is rotatablely and hermetically matched with the internal wall of the valve chamber; the motor is arranged on the valve body and separated from the valve chamber; the rotation shaft of the motor is connected with a gear transmission component which is connected with the valve core; the detection control circuit is provided with a rotation angle detector, a position limit detector, a temperature sensor and a processor; the rotation angle, the position limit detector and the processor are respectively arranged on the valve body and separated from the cold water inlet passage,the hot water inlet passage and the mixed water outlet passage; the temperature sensor is arranged on the mixed water outlet passage; the output terminal of the temperature sensor is connected with the input terminal of the processor; the output terminal of the processor is electrically connected with the motor.

Description

technical field [0001] The invention relates to a temperature control valve, in particular to a photoelectric detection constant temperature control valve for regulating the temperature of water flow. Background technique [0002] At present, there are many kinds of temperature controllers (temperature control valves) used to regulate the temperature of water flow, and generally have the following disadvantages: most of them need to use handles to adjust the flow rate, and the automation level is not high, which may easily cause unstable water temperature and waste water sources; Generally, the valve port is opened and closed by linear sliding (such as setting a piston), and the frictional resistance is relatively large, which will easily cause the wear of the valve core to accelerate and reduce the service life; most of them only have the function of adjusting the flow of cold and hot water inlet, but lack the automatic constant temperature feedback of the outlet water tempe...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of temperature controllers (temperature control valves) used to regulate the temperature of water flow, and generally have the following disadvantages: most of them need to use handles to adjust the flow rate, and the automation level is not high, which may easily cause unstable water temperature and waste water sources; Generally, the valve port is opened and closed by linear sliding (such as setting a piston), and the frictional resistance is relatively large, which will easily cause the wear of the valve core to accelerate and reduce the service life; most of them only have the function of adjusting the flow of cold and hot water inlet, but lack the automatic constant temperature feedback of the outlet water temperature. Control function, it is easy to cause large fluctuations in the outlet water temperature, making the water temperature control accuracy low, and it is difficult to maintain a constant temperature outlet water

This kind of hot water thermostatic regulating valve has high processing cost, and it is inconvenient to install and operate.

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