Diesel flowmeter

1、 Overview of Diesel Meter Models:

A diesel flowmeter is a lightweight volumetric flow meter with pointer display, word wheel cumulative counting device, and zero return device. It is widely used for liquid flow control in various industrial fields and is suitable for measuring various types of liquids, such as crude oil, diesel, gasoline, etc. It has the characteristics of large range, high accuracy, and easy use and maintenance. At the same time, diesel flowmeters can also meet the liquid flow measurement needs in various fields such as petroleum, chemical, pharmaceutical, food, metallurgy, power, and transportation. A diesel flowmeter is a volumetric flowmeter that measures the total flow rate of liquid flowing through a pipeline. This flowmeter has high measurement accuracy, is less affected by liquid viscosity, and does not require a straight pipe section to be installed in front of the meter,.
wholesale price:

Specification parameters:

Principle of diesel fuel gauge:

The AK-LC series elliptical gear diesel flowmeter is a volumetric flowmeter that measures the total flow rate of liquid flowing through pipelines. This instrument has high measurement accuracy, is less affected by liquid viscosity, and does not require a straight pipe section to be installed in front of the meter. It is widely used for cumulative flow measurement of oils and high viscosity media in petroleum, chemical, pharmaceutical and health industries. Diesel flowmeter is a lightweight volumetric flow meter with pointer display, word wheel cumulative counting device and zero return device. It is widely used in liquid flow control in various industrial fields and is suitable for measuring various types of liquids. Different manufacturing materials are selected to meet the liquid flow measurement needs in various fields such as petroleum, chemical, pharmaceutical, food, etc.

Under the action of the pressure difference between the liquid at the inlet and outlet of the instrument measurement room, a pair of elliptical gears continuously rotate on the bearings and discharge the liquid. By measuring the number of revolutions of the elliptical gears, the total value of the liquid flowing through the instrument can be determined. If the volume Q discharged after one revolution of the elliptical gear and the number of rotations of the elliptical gear per unit time is N, then the volume of liquid flowing through during that time is NQ.

Diesel flowmeter is a volumetric instrument that measures the total flow rate of liquid flowing through pipelines. It has the function of on-site display of cumulative flow rate or remote display of instantaneous flow rate and cumulative flow rate. It can be combined with a regulating system to achieve automation of flow detection and control.

Diesel fuel meters are widely used for flow measurement of petroleum products and other solutions in industrial processes such as petroleum and chemical engineering. The LC sensor housing and elliptical gear are made of stainless steel material (or cast iron material), which has the advantages of hygiene, cleanliness, and corrosion resistance. They can be used in liquid beverages, daily cosmetics, pharmaceutical industries, food industries, and other places that require hygiene and cleanliness (please clean with detergent and water before use). They can also be used for measuring corrosive liquids in industries such as metallurgy and chemical engineering. Main technical parameters of diesel flowmeter
1. Accuracy level: Ordinary type 0.5 level, high-precision 0.2 level
2. Medium pressure: 1.6MPa for ordinary type, 3.2MPa for high-pressure type
3. Viscosity range: Ordinary type: 0.6~200mpa. s, high viscosity: 200~1000mpa. s
4. Medium temperature: ordinary type<120 ℃, high-pressure type<200 ℃
5. Body material: cast iron, stainless steel, etc
6. Rotating components: aluminum alloy, stainless steel, etc
7. Intrinsic safety explosion-proof: ExiallAT3
8. Connection method: flange connection DN10~DN100, threaded connection DN10~DN50
9. Installation method; Horizontal and vertical
10. Caliber series: DN10, 15, 20, 25, 40, 50, 80100
11. Pressure loss: ≤ 0.1 MPa
Structural principle of diesel flowmeter
Under the action of the pressure difference between the liquid at the inlet and outlet of the instrument measurement room, a pair of elliptical gears A and B continuously rotate on the shaft and discharge the liquid. By measuring the number of revolutions of the elliptical gears, the total value of the liquid flowing through the instrument can be determined.
2. The LC type elliptical gear flowmeter adopts a magnetic seal connection. The accumulation mechanism uses a character wheel to represent the cumulative reading.
The materials in contact with the measured medium inside the elliptical gear flowmeter include cast iron, cast aluminum, stainless steel, carbon steel, and yellow steel.

The elliptical gear flowmeter composed of LC type elliptical gear flow transmitter and secondary instrument is equipped with remote display of instantaneous flow and cumulative flow functions, which can meet the needs of automatic control.
The transmitter has the following characteristics:
1. Adopting advanced contactless communication technology;
2. High degree, less affected by changes in liquid viscosity;
3. There is no need to install a straight pipe section in front of the table;
4. Intrinsically safe explosion-proof, explosion-proof mark: ExiaIAT3
5. The certificate number is GYB5397, which can be used in conjunction with the associated equipment LB867 and can be used in corresponding explosive hazardous areas.

Diesel fuel gauge performance parameters:

Connection method: Flange connection: DN10~DN200

Installation method: horizontal, vertical

Accuracy level: ordinary type 0.5 level, high-precision 0.2 level

Pressure resistance: ordinary type 1.6MPa, high-pressure type 3.2MPa

Temperature resistance: ordinary type<120 ℃, high-pressure type<200 ℃

Production materials: cast iron, cast steel, stainless steel, etc

Rotating components: aluminum alloy, stainless steel, etc

Optional oil filter can be installed

Diesel flow meters should be cleaned before installation. If the liquid contains solid particles, a filter must be installed upstream of the pipeline;

There are no specific requirements for the front and rear straight pipe sections of diesel flow meters. It can be installed horizontally or vertically. During installation, the elliptical gear rotation axis of the flowmeter should be parallel to the ground

The diesel fuel gauge installed correctly according to the requirements can ensure sufficient accuracy during use, and the accuracy of the cumulative value can usually reach level 0.5, making it a relatively accurate flow measuring instrument. However, if the flow rate of the measured medium is too low during use, the impact of instrument leakage errors will become prominent, and sufficient measurement accuracy cannot be guaranteed. Therefore, diesel flow meters of different models and specifications have an allowable value for * * * small flow rate. Only when the actual measured flow rate is greater than the lower limit flow rate allowable value, can the measurement accuracy be guaranteed.

Secondly, when using a diesel fuel gauge, it is important to note that the temperature of the measured medium should not be too high, otherwise it will not only increase measurement errors but also have the potential to cause gear jamming. Therefore, diesel flow meters are used within the temperature range specified by the instrument. After long-term use, the internal gears of diesel flow meters will be corroded and worn, which will affect the measurement accuracy. Therefore, it is important to regularly observe and dismantle for inspection. If conditions permit, calibration should be carried out regularly.

Measurement range and working pressure of diesel fuel gauge

Diesel fuel gauge selection code

Functions that can be achieved by a quantitative controller

1. External start, stop, and reset buttons are available.

2. It can simultaneously control the opening of valves and pumps.

3. 8 commonly used quantities can be set.

4. Power off, restart and continue to measure according to the previous quantitative value.

5. Can query quantitative frequency, quantitative value, and quantitative time.

6. Installing a micro printer can print quantitative data.

7. Full Chinese LCD display, easy and convenient to operate.

8. Can install size valves to control quantitative control, with higher accuracy.

The above characteristics cannot be achieved simultaneously by other quantitative control instruments. The quantitative control instrument is perfectly configured and can change the internal program according to user requirements to make the operation more in line with on-site requirements.

The quantitative control instrument system consists of flow meters, flow quantitative control instruments, solenoid valves, and distribution boxes.

It can achieve control over processes such as quantitative measurement, quantitative filling, and quantitative batching of fluids. The structure is shown in the figure.

Principle of quantitative controller:

At the beginning of quantitative measurement, the flow quantitative control instrument indicates that the solenoid valve is open and the fluid enters the flow sensor. flow sensor

Send the flow signal to the quantitative integrator controller and start measuring. When the flow reaches the set value, the quantitative integrator controller sends a command to disconnect the solenoid valve and restore it to its initial closed state.

Technical requirements for quantitative control instrument control

For example, add a certain amount of water (such as 10L) to the jar, and input the quantitative value of 10L on the flow integrator (quantitative controller),

Then press the start button (or confirm button), and the flow accumulator relay will close (the solenoid valve will open and the water filling light will turn on),

The flow accumulator starts to accumulate, and when the accumulated amount reaches 10L, the flow accumulator relay is disconnected (the solenoid valve is closed, and then...)

The water light is off, and this quantitative completion is completed.

If you want to perform the next quantitative control, you need to press the reset button and then follow the above steps. If necessary

To pause, press the stop button. If the quantitative value is consistent with the last time, simply press the start button.

Requirements for quantitative control instrument:

The input of the controller is 4-20mA or pulse signal, with external start, stop, reset, and two relay outputs.

An intermediate relay needs to be added from the relay to the solenoid valve. If the solenoid valve is powered by 24V, a 24V switch needs to be added

Power Supply.

Note: Indicator light, button, intermediate relay, air switch, AC contactor (optional), quantitative controller (LCD)

Display, control box, form a control system to control the start or stop of the on-site (24VDC) solenoid valve, and an additional one needs to be added

The main power switch, flow meter, and solenoid valve need to be made according to the on-site requirements. (Accessories can be customized by users themselves)

Characteristics of quantitative controller:

1. The control circuits and components inside the control box are customized according to the flow meters and equipment required by the customer. The signal lines are easy to connect and generally do not need to be adjusted upon arrival at the site;

2. The control box panel is equipped with buttons such as "start" and "stop", as well as a "status indicator light" display, making the display intuitive, easy to operate, convenient, and easy to learn;

3. The quantitative control value can be changed as needed each time, simply by operating within the quantitative control instrument;

4. The display parameters of the quantitative control instrument include current accumulation, total accumulation, instantaneous flow rate, time, input signal value of the flow meter, etc;

5. Equipped with large and small valve controls, respectively controlling large and small flow rates to achieve quantitative control;

6. There is a material dispensing query function that can query the total number of dispensing times, each dispensing time, each dispensing quantity, etc.