1、 Capacity and operational efficiency aspects

Decreased processing capacity per unit time

Insufficient heat exchange can lead to slower heating and vaporization of the feed liquid, resulting in actual evaporation of the equipment below the rated value, reduced production capacity, and inability to achieve the design processing goals.

Extended operating cycle

The same amount of waste liquid significantly increases the time required for evaporation and concentration, disrupts the rhythm of continuous operations, and reduces overall production efficiency.

System load imbalance

Unstable steam production can easily lead to steam accumulation, condensation, and disorder of vacuum system conditions, forming a vicious cycle.

2、 Energy consumption and operating costs

Significant increase in energy consumption

To maintain the evaporation effect, it is necessary to continuously increase the heating power and improve the heat source supply, and the energy consumption of electricity, steam, thermal oil, etc. will increase synchronously.

Increased losses of auxiliary equipment

The long-term high load operation of vacuum pumps, circulation pumps, and cooling water pumps has accelerated the wear and tear of parts, resulting in increased maintenance frequency and replacement costs of accessories.

3、 Process and water quality compliance level

Out of control operating parameters

After the heat exchange deteriorates, the boiling point becomes abnormal, and the operator is forced to increase the temperature and decrease the vacuum degree, which can easily cause mist entrainment and boiling, and the material liquid droplets enter the condensation system with the steam.

Exceeding the standard for distillate indicators

The impurities, salts, and organic matter carried by the condensate can cause an increase in COD, TDS, conductivity, and abnormal pH, which cannot meet the discharge or reuse standards.

Abnormal quality of concentrated solution

The evaporation rate is uneven, and the concentration ratio is difficult to accurately control, which can lead to local excessive concentration and an increase in the precipitation of salts and harmful substances.

4、 Equipment malfunction level

The problems of scaling and crystallization have worsened

Uneven temperature distribution on the heat exchange surface can accelerate the adhesion of scale, salt crystals, and sludge in local high-temperature areas, further blocking heat transfer and forming a vicious cycle of "low efficiency → heavy scaling → lower efficiency".

Increased corrosion risk

Local high temperatures and prolonged retention of acidic and alkaline materials can exacerbate corrosion of heat exchangers, chambers, and pipelines, shortening the service life of equipment.

Pipeline and component blockage

Crystallization and accumulation of dirt can easily cause blockages in pipelines, valves, and demisters, leading to poor circulation of the material and liquid, and severe fluctuations in system pressure/vacuum.

5、 Security and compliance aspects

Increased safety hazards

Abnormal fluctuations in system pressure and vacuum degree increase the probability of boiling and material overflow, posing a risk of material leakage, splashing, and injury; Unstable negative pressure may also lead to gas backflow.

Environmental compliance risks

If the distillate does not meet the standard and the materials leak, it will violate the requirements of pollution control and face the risk of environmental inspection, rectification, and punishment; Abnormal components in concentrated solution can also affect hazardous waste identification and compliant disposal.