Application: food watering system , cosmetic watering system, quantitative feeding system, chemical liquid dosing system, etc.
DLPL quantitative control / quantitative feeding / automatic feeding / manual operation of feeding / flow automatic control device / button-type operation of feeding / quantitative canning / replacement of manual canning refers to the addition of an accurate measurement of pipeline flow A function that automatically cuts off the flow of a pipeline when the item accumulation reaches a certain value.
This solution is mainly based on the pulse flow signal feedback from the flow meter to the quantitative controller. When the cumulative flow of the flow reaches the set value (quantitative value), the quantitative controller will give a solenoid valve or pump a switching signal, which has reached the Start and stop controls. Realize automatic and manual control of feeding. The system has high accuracy, simple operation, and can be calibrated in the field.
At present, many companies will use or need to improve one of the items, it has the advantages of easy to learn, intuitive display, manual control of flow or automatic control of flow and other characteristics. It is especially suitable for oil field oil mixing, water mixing, drug mixing, batching, quantitative water injection and quantitative control of various liquids. At present, some companies still use manual operation for canning / beating, and do not want to invest too much cost. Companies that want to improve work efficiency recommend this system.
I. Composition of quantitative water supply system
1. Flow meter: This is the basis of control, which directly affects the effect of control, so the basic requirement is that the higher the measurement accuracy, the better, with a signal output function. At the same time, there are many types of flowmeters, and they should be selected based on parameters such as measurement medium, pipe diameter, and flow range, and select the appropriate flowmeter.
2. DLPL control box: It contains display quantitative controller, internal control circuits and components, external control buttons and indicators, etc. The standard size of the box is 400 * 300 * 200mm, and the power supply is AV220V.
3. Flow-cutting equipment: It can be the existing power equipment of the pipeline, such as a pump; it can also be a solenoid valve, an electric valve, a flow valve, etc. that are mounted on it.
Control process of quantitative watering equipment
After receiving the flow signal from the flow meter, the quantitative controller completes the accumulation of the flow inside it, and sets the required quantitative control value inside the controller. When the cumulative value displayed by the quantitative controller reaches the set quantitative value, When the control value is reached, the quantitative controller outputs a switching signal. At this time, the switch signal is used to control the interruption equipment installed on the pipeline through a matching relay or contactor, so as to achieve the effect of quantitative control.
Product features of quantitative watering equipment
1. It only needs to be composed of flow meter, control box and cut-off equipment, with simple structure and low cost;
2. The control lines and components in the control box are customized according to the flowmeters and equipment required by the customer. The signal lines are simple to connect and generally do not need to be adjusted after arriving at the scene;
3. The control box panel is equipped with "Start", "Stop" and "Zero" buttons, and has a "status indicator" display, so the display is intuitive, the operation is simple, convenient and easy to learn;
4. The quantitative controller is a full Chinese liquid crystal display. Each quantitative control value can be arbitrarily changed according to needs. It only needs to be completed in the quantitative controller.
Fourth, the main function of quantitative water equipment
1. Equipped with large and small valve control, which respectively control large flow and small flow to achieve precise quantitative control;
2. When controlling the pump and valve at the same time, it has the functions of delayed start of the pump and early valve closing of the pump;
3. Equipped with overflow and concrete pump interfaces, the material will be protected immediately when the material overflow and concrete pump are closed;
4. In the quantitative controller, you can check the total accumulation, instantaneous flow rate, time, input signal value of the flow meter, etc., and set up query functions such as the number of shots, the time of each shot, the amount of each shot, and the daily or monthly accumulation. ;
Fifth, ordering instructions for quantitative water supply equipment
1. Choose the right flow meter: Tell us the name of the measuring medium, the diameter of the measuring tube, the working pressure and temperature, the flow range or other requirements, and we will give you a selection;
2. Explain the requirements of control: such as the size of each quantitative value, the number of control times per day, whether the value of each control is the same, and other requirements;
3. Choosing a current-cutting device: If you already have a current-cutting device, please inform it of its working power supply and power, we will customize it; if necessary, we can provide a current-cutting device. We recommend that you choose a solenoid valve or an electric valve (when a delayed start or close is required) for the interruption device. Do not control the pump. At the same time, when the pipeline is arranged, the power source that generates the flow with the liquid level difference is the best. In this way, the control is the safest and the measurement accuracy is the best.