CN201716081U - Coil surrounding type warning flow meter - Google Patents

Abstract

The utility model relates to a coil-wrapping alarm flowmeter, which is provided with a flowmeter conical tube. The inside of the flowmeter conical tube has a metal float. The outer ring of the flowmeter conical tube is surrounded by a detection coil using the principle of a proximity switch. The detection coil is electrically connected There is a controller, and the controller controls the relay electrically connected with the controller to output a switch value signal. The lower edge of the detection coil is located where the flow set point of the flowmeter cone is located. When the fluid flow in the pipeline exceeds the flow setting value, the metal float enters the detection coil, the current of the circuit changes, and the controller controls the relay to output the switching signal according to the current change. The utility model has the advantages of exquisite structure and convenient installation, which can not only indicate the flow rate in the pipeline, but also realize the flow control.

Description

Coil Wrap Alarm Flow Meter

technical field

The utility model relates to the technical field of flowmeters, in particular to a coil-wrapping alarm flowmeter.

Background technique

Glass rotameters are often used to measure the fluid flow in pipelines, but the existing glass rotameters can only measure the flow in the pipeline and display the fluid flow. When the flow exceeds the set value, there is no reminder and alarm function. single. During use, the operator needs to check whether the displayed flow value has exceeded the range at any time, which is time-consuming and labor-intensive.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a coil-wrapping alarm flowmeter, which can not only measure the flow in the pipeline in real time, but also know remotely and in real time whether the on-site flow exceeds the flow set value , to facilitate the measurement and control of pipeline flow.

The technical solution adopted by the utility model to solve the technical problem is: a coil-wrapping alarm flowmeter, which has a flowmeter cone, the inside of the flowmeter cone has a metal float, and the outside of the flowmeter cone The circle is surrounded by a detection coil using the principle of a proximity switch, the detection coil is electrically connected to a controller, and the controller controls a relay electrically connected to it to output a switching signal.

Further, the lower edge of the detection coil is located at the position where the flow setting value of the flow meter conical tube is located.

The beneficial effects of the utility model are: the utility model surrounds the detection coil on the outer ring of the cone tube of the flowmeter. When the fluid flow in the pipeline exceeds the set value of the flow rate, the metal float enters the inside of the detection coil and is affected by the electromagnetic induction of the detection coil. The eddy current is generated inside the metal float, which reacts on the detection coil, the current of the circuit changes, and the controller controls the relay to output the switching signal according to the current change. The switching signal of the relay is output to the remote control room or transmitted to the alarm device for alarm. The utility model has the advantages of exquisite structure and convenient installation, which can not only indicate the flow rate in the pipeline, but also realize the flow control.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a structural representation of the utility model;

Among them: 1. Conical tube of flowmeter, 2. Metal float, 3. Detection coil, 4. Controller.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

The coil-wrapping alarm flowmeter shown in Figure 1 has a flowmeter cone 1 with a metal float 2 inside the flowmeter cone 1. The outer ring of the flowmeter cone 1 is surrounded by a detection coil 3 using the principle of a proximity switch. The detection coil 3 is electrically connected to the controller 4, and the controller 4 is electrically connected to the relay, and the controller 4 controls the relay to output a switching signal. The lower edge of the detection coil 3 is located at the position where the flow rate setting value of the flowmeter cone 1 is located.

When the fluid flow in the pipeline exceeds the set value of the flow rate, the metal float 2 enters the inside of the detection coil 3, affected by the electromagnetic induction of the detection coil 3, an eddy current is generated inside the metal float 2, which reacts on the detection coil 3, and the current of the circuit changes. The controller 4 controls the relay to output the switch value signal according to the current change. The switching signal of the relay is output to the remote control room or transmitted to the alarm device for alarm. The utility model is widely used in flow measurement and flow control in petroleum, chemical industry, steel, food, pharmacy and other industries.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (2)

1. A coil-wrapping alarm flowmeter has a flowmeter cone (1), characterized in that: the inside of the flowmeter cone (1) has a metal float (2), and the flowmeter cone ( The outer ring of 1) is surrounded by a detection coil (3) using the principle of a proximity switch, the detection coil (3) is electrically connected to a controller (4), and the controller (4) controls a relay electrically connected to it to output a switching signal. 2. The coil-wrapping alarm flowmeter according to claim 1, characterized in that: the lower edge of the detection coil (3) is located at the position where the flow rate setting value of the flowmeter cone (1) is located.

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