The working principles of the float liquidometer
The flop meter is a liquid-level measurement device based on floating principles and magnetic co-operation, and consists of a core structure consisting of a float, a guide (or pole), a magnetic reed switch (or a dry clarinet) and a signal conversion module. When the liquid level of the container changes, the float ball rises or drops with the liquid surface, and its built-in *magnetic body uses the magnetic reed switch on the trigger guide through magnetic coupling, thus converting the liquid level change into a telecommunications output. The process is as follows:
Floating power drive: floating ball floats to the liquid surface because of its density, which is less than measured liquid, and the rise or drop of the liquid position directly leads to the simultaneous movement of the float。
Magnetic coupling triggers: the magnets inside the ball move around the magnetic spring switch on the guide, and the contacts of the magnetic spring switch under the magnetic field are closed or disconnected to form a switch amount signal。
Signal conversion: the operational state of the magnetic reed switch is transformed into a resistance, voltage or current signal, which achieves the remote display, control or recording of the liquid position through the output of a standard signal by an intelligent converter (e. G. 4~20ma)。
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Classification of float liquometers
Depending on the form of the structure and the characteristics of the function, the flop scale can be divided into the following types:
1. Classification by structural form
Side-packed floating ball fluids
Characteristics: the conductor is installed vertically on the side wall of the container, and the floater moves up and down the guide。
Application: storage tanks, reservoirs, etc. For side wall openings, to facilitate installation and maintenance。
Advantages: a compact structure that directly shows the height of the liquid and is suitable for on-site observation。
Top float lamp count
Characteristics: the conductor is fixed at the top of the container through frank, and the float is raised or lowered within the conductor。
Application: applies to closed containers or high-temperature high-pressure environments to avoid safety hazards associated with openings at the top。
Advantages: good sealability, high pressure, suitable for industrial process control。
Liquometer of contours
Characteristics: floating balls are connected to external indicator via a pole, and liquid-level change drives the contours。
Application: a scenario that applies to less liquid than operational levels in groundwater pools, deep wells, etc。
Advantages: without a guide, flexible and suitable for space-limited environments。
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