Electric heat tracing liquid level meter with RS485 monitoring function

Abstract

The invention relates to an electric heat tracing liquid level meter with a RS485 monitoring function. The technical characters of the electric heat tracing liquid level meter are characterized by comprising a sealing flange, an electric control device, a connection flange, a measuring cylinder, an electric heating belt, a heat-insulating layer and a protection housing, wherein the electric control device has an MCU module, a power supply module, a measuring sensor, a temperature sensor, a RS 485 module, a sound-light alarm module and an electric heating belt control module; the MCU module is connected with the measuring sensor, the temperature sensor, the electric heating belt control module, the sound-light alarm module and the RS485 module; the electric heating belt control module is connected with the electric heating belt; and the RS 485 module is connected with a monitoring center via a RS485 communication line to achieve a monitoring function. With the electric control device, work of the electric heating belt can be controlled in real time according to on-site temperature, so normal work of the liquid level meter can be guaranteed; liquid level information and alarm information can be sent to the monitoring center via the RS485 communication line, so monitors can monitor; and a flexible and convenient control method can be provided.

Description

technical field [0001] The invention belongs to the technical field of liquid level gauges, in particular to an electric heat tracing liquid level gauge with RS485 monitoring function. Background technique [0002] At present, in the process of petroleum, chemical and other industrial production, the measured medium needs a certain temperature protection, especially in the northern winter when the outdoor temperature is very low, and the liquid level gauge must be insulated to ensure the temperature of the liquid level gauge when working outdoors. normal work. Existing heat-retaining liquid level gauges usually have a steam jacket type and a hot water heating type. In order to realize the above working methods, facilities such as boilers and pipelines must be installed, which greatly increases the production cost; in addition, the existing liquid level gauges usually Without monitoring function, it is impossible to know the liquid level of field equipment in real time, and ...

AI Technical Summary

Problems solved by technology

Existing heat-retaining liquid level gauges usually have a steam jacket type and a hot water tracing type. In order to realize the above working methods, facilities such as boilers and pipelines must be installed, which greatly increases the production cost; in addition, the existing liquid level gauges usually Without monitoring function, it is impossible to know the liquid level of on-site equipment in real time, and it is difficult to ensure safe and reliable operation of production

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