Deep drawing quantitative loading control instrument

What are the characteristics of the quantitative loading control instrument on the market? How to choose the quantitative loading control instrument? Deep Figure Quantitative Loading controller product structure decomposition, so that you understand the quantitative loading control instrument!

First, the Quantitative loading control instrument overview

Hy-c explosion -proof distributed quantitative loading control instrument is a new type of intelligent flameproof instrument with advanced Intelligent controller as the core . The core components of the world-renowned brand of intelligent controller and operating terminal, combined with the general industrial configuration software and advanced control algorithm, with high control accuracy, reliable performance, easy to maintain and use features. At the same time, the loading meter provides a completely open communication protocol, which facilitates the interface with the user management system.

The quantitative loading control instrument is a general-purpose product, which can be equipped with a variety of flowmeter, thermometer, liquid level switch, grounding switch, control valve, upper computer and so on, constituting a complete distributed quantitative loading control system. The system can be operated by a single machine, by the operator in situ operation, monitoring, or through the communication cable with the control room computer connection, by the computer to realize the loading control, the field loading situation to the control room by the computer centralized management, display, print all kinds of loading reports.

Applicable to the oil, chemical, pharmaceutical and other industries, liquid materials loading, loading barrels, quantitative batching process control.

Ii. Characteristics and functions

Hy-c -Type quantitative loading controller has the following features:

1, a hy-c -type quantitative loading control device can control the two-way hair oil crane pipe hair oil;

2, hy-c -type quantitative loading control instrument can be used to control the ratio of materials;

3, has the temperature compensation function, has the artificial set gentle automatic collection temperature two kinds of compensation methods;

4, with electrostatic grounding protection function, that is not good grounding can not start loading or immediately stop loading;

5, has the oil spill protection function, receives the oil spill controller signal, the automatic shut down the valve, stops the pump;

6, with emergency parking function, that is, in the event of an emergency, press the "Emergency stop" button can immediately stop loading;

7, with remote and in-situ two modes of operation, and can freely switch;

8, with the power-down protection function, that is, in the case of power failure to save the oil record and other parameters, power supply can be based on the power before the oil record to continue loading. The parameters are kept for more than one year;

9, the equipment self-test function, the loading meter will alarm when the fault occurs;

Operation permission setting function, can set a variety of operation rights and multi-level password, to ensure the security of data and system;

One, hy-c has an open communication protocol, can communicate with the host computer or other system through Ethernet protocol or MODBUS protocol;

Third, the main technical indicators

1. Power supply

Input power ... 220VAC

Output power ... 220VAC or 24VDC (for use with peripheral sensors and actuators)

2. Input signal

Flow...... 0 ~ 10KHz Pulse Signal

Compensation temperature ... Can be arbitrarily configured according to the situation (General recommended 0~℃)

Valve return ... Passive contacts (current or voltage type, particularly well-known when ordering)

Liquid level Switch ... Passive contacts (current or voltage type, particularly well-known when ordering)

3. Output Signal

Valve control signal ... Capacity 24VDC,0.5/1a or 220VAC Optional.

Control signal hold time ... 1 ~ 98 minutes or unlimited long time

Control logic ... Can control eight solenoid coils, valve switch mode and sequence can be configured

4. Display Mode

Full LCD display

5. Key Structure

four keys (one for each machine), with a button (two-bit machine)

6. Accuracy

System control accuracy ... ±0.1%

7, set the quantitative

Quantitative Setting range ... 1 ~ 999999 kg / liters

Density Setting range ... 0.0001 ~ 2.0000

Flow coefficient setting range ... 0.1000 ~ 99999

Expansion coefficient setting range ... 0.1000 ~ + x 10-6/ ℃

8. Operation Mode

Continuous operation

9. Communication

(1)RS485 mode

MODBUS Protocol

Baud rate ... - , 2400 , 4800 , 9600

Maximum distance ... 1.2KM

(2) Ethernet mode

TCP/IP protocol

Hundreds of km transmission distance by fiber

Conditions of Use

Ambient temperature ... -40 ~ - ℃

Air relative humidity ... Not much more than 95% .

Explosion rating of gas mixtures of combustible or flammable gases in the environment Ⅱ class B

One, storage temperature

-40~℃

grade of explosion-proof

ExdⅡBT4

Dimensions

440mmx350mmx150mm(L x W x H) One machine

440mmx350mmx170mm(L x W x H) One machine two-bit

Weight

15kg(one machine one person)

18kg(one machine two-bit)

Iv. Principle of operation

1. Hardware composition

The system hardware mainly consists of Intelligent Controller module, integrated LCD operation panel,24V Industrial power supply, explosion-proof control box and so on. The intelligent controller mainly completes the data acquisition, conversion, logic operation and control signal output. Integrated LCD operator panel including keyboard and LCD display, mainly used for data input and start, stop and other operations.

2. Flow rate Acquisition and product calculation

     hy-c type quantitative loading controller can connect various flowmeter according to user's requirement. The output signal of the general flowmeter adopts pulse mode, falling edge trigger, frequency range: 0 ~ 10khz 4 ~ 20ma Flowmeter interface. User-friendly selection, set advance amount factor, can set time Advance amount ( 0 ~ 99 seconds" or the amount of advance ( 0 ~ 500 kg or l) to achieve accurate delivery of materials.

3, Valve, pump control and return

Four sets of valve control switch delay time (0~ seconds or minutes) can be input from the panel according to the tips of the operator panel. When the set time is reached, the loading meter automatically opens the valve, when the loading is complete, the loading meter automatically closes the valve according to the delay time. Different control methods are used depending on the situation of the field control. The pump start and stop control method is also consistent with the valve. The switch status of the valve and pump can be displayed in real-time graphically on the operator panel.

4. Temperature input and temperature compensation

The loading instrument adopts integrated temperature sensor signal, which is generally used in 4~20mAfor automatic compensation calculation of system temperature. the standard volumetric flow when converting thevolumetric flow at the actual temperature T℃ of the pipe into a ℃:

     q=q 1-r (t-20) "

wherein,Q is the volumetric flow at ℃,q is thevolume flow ofthe detected t℃;r is the coefficient of expansion, the temperature of the flow in the pipeline is continuous change, so in the compensation operation, take a very short period of accumulated flow, calculate the standard volume flow within that time, and then do integral operation can calculate the total volume flow. If calculated by weight, the weight of the liquid is w=q*db, where Db is thestandard density value of the liquid at ℃.

5. Chain and alarm

The liquid level switch is mounted slightly above the tank level alarm. When the loading liquid level exceeds the level of the alarm, to reach the level switch installation position, liquid level switch issued a signal, loading instrument closed all valves, issued alarm ringtones, while the operation panel display alarm information.

In order to avoid the high electrostatic accumulation caused by the material and air friction during loading, it is necessary to have a good grounding system for the tanker. After the loading instrument starts to detect the grounding alarm signal, such as greater than the specified grounding resistance ( ohm), the ground alarm ring, refused to carry out the loading, while the operation panel display ground alarm information.

Deep Map Quantitative loading control instrument is welcomed by customers, Shenzhen Ottowil Technology Co., Ltd. also to provide users with quality services, reliable technical support.

Deep drawing quantitative loading control instrument