Why dissolved air flotation machine without dissolved air water

News 2024年2月29日 145

Dissolved air flotation (DAF) machines are widely used in wastewater treatment, solid-liquid separation, and other fields. They work by using gas to generate air bubbles to separate suspended particles in water. However, there may be issues where the DAF machine does not have dissolved air water. This article will analyze this phenomenon and provide corresponding solutions.

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Reasons for no dissolved air water in a DAF machine

1. The intake valve is not opened or opened insufficiently
The intake valve of the DAF machine is a key component for supplying gas. If the valve is not opened or opened insufficiently, it will affect the DAF machine’s ability to intake enough gas, thereby affecting the dissolved air effect.
2. Insufficient pressure in the dissolved air tank
The pressure inside the dissolved air tank directly affects the solubility of gases. If the pressure is too low, gas may not be able to fully dissolve in water.
3. Filter blockage
The filter is an essential part of the DAF machine, responsible for filtering out impurities and dust in the air. If the filter is severely blocked, it will affect the normal entry of gas, resulting in no dissolved air water in the DAF machine.
4. Nozzle blockage or damage
The nozzle is a critical part of the DAF machine’s gas outlet. If the nozzle is blocked or damaged, gas cannot be released normally, affecting the dissolved air effect.
5. Control system failure
The DAF machine’s control system is responsible for monitoring and adjusting various parameters, such as intake quantity and pressure. If the control system fails, the DAF machine may not run normally, affecting the dissolved air effect.

Solutions

1. Check and adjust the intake valve
First, check if the intake valve of the DAF machine is opened. If it is not, open it immediately; if it is already opened but still no dissolved air water, check if the valve is opened insufficiently and adjust it accordingly.
2. Increase the pressure inside the dissolved air tank
The pressure inside the dissolved air tank can be increased by increasing the intake quantity or adjusting the pump’s speed to ensure that gas can fully dissolve in water.
3. Clean the filter
Clean the filter regularly to ensure its smooth flow, allowing gas to enter the dissolved air tank normally.
4. Replace damaged nozzles
If nozzles are blocked or damaged, replace them with new ones to ensure that gas can be released smoothly.
5. Repair or replace the control system
If the control system fails, contact professional personnel to repair or replace related parts to resume normal operation.

In summary, understanding the reasons and corresponding solutions for no dissolved air water in a DAF machine is crucial for ensuring equipment operating normally and improving treatment effects. We hope that this article can help users and allow DAF machines to achieve better treatment results.