Ultrasonic Flowmeter Common Problems and Solutions

Ultrasonic Flowmeter Common Problems and Solutions

First, the reading is unstable

Analysis of the factors: The ultrasonic oscillation of the device's ultrasonic flow sensor is large or there are changes in the flow state equipment (such as the flow meter device downstream of the regulating valve, pump, and contraction orifice).

Solution: Adapt the flow sensor away from the source of the vibration or upstream of the device that changes the flow.

Second, the reading is not accurate, error

Factor analysis:

1. Ultrasonic Flowmeter Sensors The sediments on the top and bottom of the horizontal pipeline disturb the ultrasonic signal. Solution: Install the sensor on both sides of the pipe.

2. The ultrasonic flowmeter sensor is mounted on the water flow down pipe, and the pipe is not filled with fluid. Solution: Install the sensor on the fluid-filled pipe section.

3. There are devices that make the flow regime strong, such as: venturi, orifice plate, vortex flowmeter, turbine flowmeter or some closed valve, just in the scale of sensor launch and acceptance, making the reading inaccurate. Solution: The sensor is mounted remotely from the above device, the sensor is located upstream from the device 30D, and the downflow is from the above device 10D or is moved upstream of the above device.

4. The input diameter of the ultrasonic flowmeter does not match the internal diameter of the pipe. Solution: Correct the diameter to match it.

Third, the sensor is good, but the flow rate is low or no flow rate

Factor analysis:

1, because the paint and rust outside the pipeline are not removed. Solution: Eradicate the pipe from the head, device sensors.

2. The surface of the pipe surface is uneven or the ultrasonic flowmeter equipment is at the welding seam. Solution: Smooth the pipe away from the weld.

3, the pipe roundness is not good, inside and outside the table is not lubricated, there is tube lining scale. If the pipe is a cast iron pipe, this may be the case. Solution: Select the inner and outer surfaces of the steel pipe to lubricate the pipeline raw materials or lining the local area.

4. The measured medium is pure or the suspended solids are too low. Solution: Select the appropriate other type of appearance.

5, the sensor device on the fiberglass pipe. Solution: Remove the glass fiber.

6, sensor device on the sleeve, it will weaken the ultrasonic signal. Solution: Move the sensor to the unsleeved pipe section.

7. The coupling between the sensor and the pipeline is not good, and the coupling surface has gaps or bubbles. Solution: Reciprocating device coupling agent.

Fourth, when the control valve is somewhat closed or decreased flow rate, the reading will be added

Analysis of factors: The sensor is installed too close to the flow of the control valve. When some of the valves are closed, the practice of measuring the flow rate is to control the flow rate of the valve's reduced-diameter flow. The flow rate is increased due to the decrease in the diameter.

Solution: Move the sensor away from the control valve, the sensor upstream from the control valve 30D or the sensor to the control valve upstream from the control valve 5D.

Five, ultrasonic flowmeter operation is normal, suddenly the ultrasonic flowmeter is no longer measuring the flow

Factor analysis:

1. The measured medium is changed. Solution: Change the measurement method.

2. The measured medium is vaporized because of excessive temperature. Solution: Cooling

3. The temperature of the measured medium exceeds the limit temperature of the sensor. Solution: Cooling

4. The couplant below the sensor ages or is wasted. Solution: Coupling agent from scratch

5, because of the appearance of high-frequency disturbance so that the appearance exceeds its own filter value. Solution: Keep away from disturbing sources

6, accounting machine data loss. Solution: Input all accurate parameters from the beginning

7, accounting machine crashes. Solution: Start the accounting machine from scratch

Steel-drawer

Model:XY-P80  XY-p120

 

Specification:

The Steel-drawer pull out the whole bar, the sidewall because of the role of the pull mouth,promoting rubber tearing, smoothly separate wire and rubber.  

Steel-drawer

Advantages:

1.This equipment adopts double vane pump to supply oil, low working noise, at the same time to ensure the speed and pressure of the drawing cylinder when working, and improve the working efficiency and the service life of the valve.

2.The automatic lifting device is adopted to reduce the labor intensity of workers;

3.The inner guide rail positioning, make sensor reliability retractor positioning highly accuracy, drawing cylinder operation smoothly.

4.Using manual automatic exchange of work,flexible choice.


Automatic Feeding Machine

Model: XY-AL200 / XY-AL500 / XY-AL800 / XY-AL1200

Specification:

Automatic feeding machine mainly through the use of 60 tons of hydraulic pressure as the driving force, can be used to push scrap plastic/ tires with hydraulic column extrusion into reactor, the whole operation process is stable, simple and convenient.

Advantages:

Fully automatic design, save time and manpower;

Highly improve the feeding capacity: manually feeding can only reach 150-170KGS/m³. By using the automatic feeding machine, it could reach to 240-280KGS/m³, which greatly improve the feeding capacity.

Automatic Feeding Machine 

 

The Tyre Cutting Machine 

Model:  XY-C800  XY-C1200

 

Specifications:

The tyre cutting machine is applied to cut all kinds of rubber blocks and strips,it is good for cutting rubber tyre,rail tyre, rubber strips etc.

 

Advantages:

1.This machine with large cutting knife,good shearing effect,fast cutting speed and low energy consumption;

2.Small size, easy to move;

3.Adopt hydraulic system, easy to operate and very safe design.

Tyre Cutter



The Whole Tyre Crusher

Model: XY-SH800  /  XY-SH1200

 

Specifications:

At the room temperature, put the tyre or large plastics of rubber into the press directly,which can be crushed into 1-8cm pieces.

 

Advantages:

1.Compact structure, advanced technology, low energy consumption, high efficiency;

2.The crushing chamber is an open structure,which is convenient for maintenance;

The knife is made of hard alloy steel, which has high hardness, high wear resistance and can be used repeatedly;

3.This machine adopts the hardened reducer, round screen for structural steel wire mesh, large blanking area,which is good for qualified rubber material screening.

Other Assistant Equipments

Tyre Steel Drawer,Automatic Feeder, Assistant Equipments

Shangqiu Jinpeng Industrial Co., Ltd. , https://www.recyclingthewaste.com