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How to do a good job in the laboratory ultrasonic cleaning machine routine maintenance work?

Date: 2022-10-15Number: 252

As a cleaning equipment, ultrasonic cleaning machine is a complete equipment in the laboratory, although common, but extremely effective, and even seriously affect the results of the entire experiment, therefore, familiar with the routine operation, maintenance and maintenance of ultrasonic cleaning machine is the key point of professional skills of the laboratory.

The basic principle of ultrasonic cleaning machine

The ultrasonic cleaning machine uses the basic principle of ultrasonic cavitation, when the bubble formed by the ultrasonic wave suddenly cracks, will also produce more than 1000 atmospheric pressure, this type of continuous strong micro-blasting and shock waves replaced the manpower, which caused the surface of the cleaned waste to be destroyed and immediately peeled off.

Before the standard use of ultrasonic cleaning machine, operators must understand the existence of the value of equipment. There are three kinds of ultrasound, infrasound, sound wave, ultrasound. The frequency of infrasound is below 20Hz, the frequency of sound wave is 20Hz ~ 20kHz, and the frequency of ultrasonic wave is above 20kHz.

Among them, infrasound and ultrasonic wave, the human ear can not hear normally. And because of the high frequency, short wavelength, so the direction of transmission of good, strong penetration, which is why the main reason for the production of ultrasonic cleaning machine.

The ultrasonic cleaning machine is mainly composed of an ultrasonic cleaning trough and an ultrasonic generator. The ultrasonic cleaning tank is strong, tough and corrosion-resistant. It is equipped with a Ultrasonic transducer vibrator at the bottom. Ultrasonic waves can be transmitted to the transducer through a cable connection, which in turn resonates at high frequencies with the vibrating plate, allowing the organic solvent in the tank to be Sonication to clean the stain.


Operation Flow

Operators in the use of this product, it is important to strictly comply with the following standards for phased practical operation.

The first step is to connect the cable between the groove body and the generator;

The second step, the cleaning liquid into the tank, it should be noted that the amount of the cleaning liquid into the cleaning object, the position of the liquid surface is about three-quarters of the overall. Then the cleaned object is put into the tank body, and the power plug is inserted;

The third step, set the cleaning time, and then boot.

There are a few other things to be aware of when using the product:

First, the power supply of ultrasonic cleaner and electric heater must have better grounding device;

Second, the ultrasonic cleaning machine is prohibited without cleaning fluid boot, in other words, cleaning cylinder and did not add a certain amount of cleaning fluid, you can not close the ultrasonic switch;

Thirdly, the cleaning equipment with heating equipment is forbidden to open the heating switch when there is no liquid;

Fourth, do not use heavy things to hit the bottom of the washing machine, in order to prevent damage to the energy converter chip.

The main reason for less than ideal cleaning

First, the ultrasonic cleaning machine tank body cleaning fluid level is not good, which will result in less than ideal cleaning, to adjust the level of cleaning machine to change the cleaning effect.

Second, ultrasonic frequency coordination is not good on the easy occurrence of ultrasonic cleaning machine cleaning is not ideal, be sure to re-planning.

Third, if the tank body liquid temperature is too high, will also cause cleaning is not ideal, so to control the temperature of cleaning solution.

Fourth, the use of unreasonable cleaning fluid is also a cause of the ultrasonic cleaning machine cleaning is not ideal, must choose the appropriate cleaning fluid.

In fact, the high-speed vibration of ultrasound can clean and sterilize the surface of cleaning objects, cavitation effect is obvious, cleaning efficiency is much higher than manual cleaning, and there will be no cleaning blind area and destruction. However, these practical results are all based on the appropriate operating procedures and scientific, rational and efficient work environment. Therefore, in order to achieve better cleaning effect, the operator should pay attention to some operating matters.

Daily Maintenance

1. Maintain the air circulation, air drying, clean, conducive to long-term normal operation of equipment and optimize working conditions;

2. When the cleaning liquid is too dirty, it should be handled properly. Cleaning the stains in the cleaning tank and storage tank on time and maintaining the cleanliness of the body and appearance of the cleaning tank can improve the durability of the cleaning tank

3. Electrical control box and equipment vent away from steam, corrosive substances, dust, on a timely basis with the Compressed air to clean up the remaining floating ash;

4. Timely test equipment insulation, for aging electrical components regularly maintenance and inspection, check the grounding wire, ensure good grounding equipment this project should be carried out by professional experience of electricians;

5. Timely test the power supply, determine the power supply voltage in line with the provisions of the equipment, bypass the high or low unstable power supply under long-term work;

6. For equipment containing filtering devices, the filter element shall be replaced in a timely manner;

7. If the transmission mechanism is included, the lubricant such as butter and oil should be added on time to replace the gear oil of the reducer in time to ensure that the moving parts work under good lubrication conditions.

The treatment method of malfunction

1. No ultrasonic inspection of power supply, Fuse, Control 6,7 treatment;

2. Check whether the power supply and temperature controller are set in the normal position, check the relevant water level switch, check whether the electric heater is out of order, replace the failure components;

3. Poor insulation or other components of the shell electrified heating component circuit shell, replace the poor insulation components, connect the grounding wire;

4. Sound abnormal, clean the actual effect of reducing the ultrasonic generator or transducer abnormal, check the insulation resistance of the transducer lead two terminals, and remove the transducer guard plate, check if there is anything abnormal;

5. Sound howling part of the transducer can not be integrated into the cylinder and water level, water temperature changes, change the water level, the workpiece into and out of the water when the operation is not too large;

6. The fuse is burnt, no blackening in the glass tube to check the power supply voltage, may be too high power supply voltage or load caused by an instant change, replace the same specification of the fuse or slightly larger size of the fuse;

7. Fuse burned, black glass tube caused by over-current, it is likely that the internal power tube or circuit short-circuit;

Maintenance tips

1. In the cleaning process, we should pay attention to a lot of places, especially from the ultrasonic control cabinet top of the air intake splash conductive liquid (such as water) , otherwise it will cause serious impact on the cleaning machine circuit system;

2. Normally placed, to always pay attention to the maintenance of equipment cleaning, can not be used when the power off;

3. Equipment is not crash-resistant products, so in use, must avoid the impact of the equipment or violent vibration;

4. Machine High Temperature Environment, the electrical components and circuits are not very good, so must avoid the pyrogen;

5. We should also prevent machines from being placed in wet conditions while avoiding the pyrogen

6. Long-term operation of the washing machine, before the power knob should first be set to zero, the application of its fan and then work 3 -6 minutes after shutdown to ensure that the power of internal heat dissipation;

7. Cleaning fluid should be deposited, filtered or replaced in time to ensure the cleaning effect.