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定量装车系统banner800-1
SPECIALTY
ABSORBED
​LIQUID HAZARDOUS PETROCHEMICALS STORAGE&

TRANSPORTATION SYSTEM

​LOADING CONTROL SYSTEM

 
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Top loading system

AWZ series batch controllers all adopt industrial-grade products with mature technology and reliable performance.

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High reliability

AWZ series batch controllers all adopt industrial-grade products with mature technology and reliable performance.Its core controller adopts programmable controllers commonly used in industry.The LCD display and keyboard input parts adopt imported integrated LCD operation terminals.The PC monitoring software adopts the mature industrial control configuration software,which makes the product have the absolute superiority of the MCU products in terms of advancement and reliability.

Multiple security design

The grounding signal is automatically detected before loading and during loading,and loading operation is prohibited when there is no safety grounding.

Set multi-level operation permission,and meet the operation authority to perform parameter setting or operation.

With device self-diagnosis and alarm function.

Flexible networking features

The AWZ series of batch controllers offer two communication options:Ethernet and RS485.

When using Ethernet,the communication protocol is an open Modbus TCP/IP protocol commonly used in process control.The network communication rate is up to 10Mbps,which is much higher than the ordinary RS485 network(600~115200 bps).

According to the needs,RS485 network can also be selected.The network has strong anti-interference ability,and the communication distance can reach more than 2000 meters.

Flexible configuration

According to the buyer's needs,the series of batch controllers can provide one machine(one loading device to control one loading arm)and one machine(one loading device to control two or more loading arms)and other options..

Easy to maintain and use

The system hardware adopts modular design,each module is easy to install and easy to maintain;the software adopts a graphical interface and is easy to operate.

Remote and local operation

This batch controller provides two modes of operation,remote operation and local operation.When the operation mode is set to remote,only the working parameters can be modified on the remote management computer to perform the loading operation.When the operation mode is set to local,it is allowed to modify the working parameters on the local batch controller to carry out the loading operation,and simultaneously display the working parameters and the device state on the remote management computer.

The composition,function and characteristics of AWZ quantitative batch controller

The hardware of this series of

quantitative loading controller is

mainly composed of a micro PLC

module, a liquid crystal operation

panel (including operating keyboard)    and other auxiliary equipment

(terminal, power supply,

explosion-proof box, etc.).

图片1

The function is as follows:

Parameter setting function

The loading controller can set the loading parameters by remote monitoring computer or loading instrument according to the loading requirements.These parameters include:flow coefficient,advance,valve delay,fluid density,and more.

Quantitative loading control

After determining the working parameters of the batch controller,the loading controller will complete the automatic loading process according to the specified procedure.When the loading amount reaches the set value,the loading will be automatically stopped.

Ground protection

When it is detected that the system is not safely grounded,stop loading.

Power-down protection

The loading parameters can be saved when there is an accidental power failure during the loading process,and the loading can continue after the power is turned on.

Data collection function

The loading controller can collect the flow meter pulse signal or the standard current signal.It can be connected to the thermal resistance temperature signal through the transmitter.The loading controller can also be connected to the electrostatic grounding clip and other switching signals.

Valve continuous control function

The batch controller has a PID adjustment output function,which can control the opening degree of the on-site regulating valve in a linear and continuous manner.It realizes two or more sections of switches,constant current speed regulation and other functions,and provide control effects and precision.

On-site emergency stop function

There is an emergency stop button on the loading controller and remote monitoring screen.If an emergency occurs on the site when loading,the operator can stop loading immediately by pressing the emergency stop button.

Remote and local real-time monitoring

The loading controller is equipped with a high-brightness liquid crystal display.When the operation is performed locally,the loading process and the state of the related equipment are displayed in real time.During remote operation,the remote monitoring computer and the loading controller synchronously display the loading process and the state of the related equipment in real time.

Remote/in-place loading mode conversion function

Under normal circumstances,the vehicle is loaded remotely by the host computer,or it can be directly loaded on the site as needed.Each loading controller in the system is a complete metering,control and display unit,independent of the upper computer.

Powering the field instrument

The loader also provides power output terminals,which provide 24VDC and 220VAC power supplies for field instruments such as flow meters and valves.

Communication networking function

This car loading instrument is an open system with powerful communication and networking capabilities.It can be connected to the host computer and other systems in the form of Ethernet or RS485 network.

Device self-test function

The system automatically detects the working state of the loading controller,and the monitoring computer can remotely monitor the working state of the loading controller.When the loading controller fails,the system will automatically alarm.

Operation permission setting

This loading controller can set three-level six-digit operation password,and the password level is correct.

On-site printing capabilities

This system comes with a printing function for the cumulative loading amount of each loading.


Top loading system configuration requirements and characteristics

Quantitative loading controller: one machine

Piston type digital electro-hydraulic valve: For non-corrosive and high temperature and high pressure medium, you can choose carbon steel material, 16MPa pressure, normal temperature control valve. The piston type digital electro-hydraulic valve has excellent constant current and multi-stage control functions. Excellent linear control, adjustable constant-speed response, low-pressure drop and low flow rate at high flow rate, stable control at one second per second, and constant flow function. It can solve the overshoot problem well and eliminate the water hammer phenomenon. And long life, high oil quality and other characteristics.

Flowmeter: There is no special requirement for volume flowmeter or mass flowmeter of ordinary carbon steel. If there is a high requirement for loading accuracy, it is recommended to select a mass flow meter with 0.1% accuracy.

Electrostatic protector: The overfill grounding protector for loading is a grounding device for ensuring the safety of the loading process. It has a chain function that rejects the vehicle without grounding signal and stops the vehicle when the grounding resistance is greater than 100Ω. At the same time, the device itself has an audible and visual alarm function, and the field operator can eliminate the fault by the color, sound and status of the light.

Overflow protector: Overflow protection is a safety device that prevents material from overflowing the tank when an accident occurs during loading. When the material comes into contact with the spill-proof probe, the device emits a chain signal to stop the emergency. At the same time, the device has an audible and visual alarm function, and the field operator can eliminate the fault by the color, sound and status of the light.


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