100L Multi-effect Distilled Water Machine

1. Working Principle
- The 100L multi-effect distilled water machine primarily utilizes multi-effect evaporation technology. Feed water (typically purified water) first enters the preheater for warming, utilizing waste heat within the system to raise the temperature. It then proceeds to the first-effect evaporator, where it is heated by external steam (such as industrial steam), causing the feed water to boil and generate steam. This steam serves as the heating source for the second-effect evaporator, driving the evaporation of water in the second-effect evaporator. This process transfers thermal energy sequentially through multiple evaporators (usually three or four effects). During this process, impurities remain in the concentrate, while the steam condenses in the final-effect evaporator, forming high-purity distilled water.
2. Structural Components
- Evaporator: Typically consists of a combination of three or four evaporators. The evaporators are generally made of stainless steel 316L, which offers excellent corrosion resistance and thermal conductivity. Inside the evaporator, there is a heating chamber and an evaporation chamber; the heating chamber transfers heat to the feed water, while the evaporation chamber turns the water into steam.
- Preheater: Utilizes a shell-and-tube or plate structure to preheat the feed water, aiming to improve the overall system's energy efficiency and reduce energy waste.
- Condenser: Converts the steam generated in the final-effect evaporator into liquid distilled water. It may be a water-cooled condenser, using cooling water to remove heat from the steam and liquefy it, with a structure that ensures effective cooling.
- Circulation Pump: Maintains water circulation within the system, ensuring a continuous and stable flow of feed water between components such as evaporators and preheaters, facilitating smooth operation of the entire production process.
- Control System: Typically a PLC control system that precisely regulates parameters such as steam flow, water flow, temperature, and pressure. Operators can set parameters via a touchscreen, and the system also provides fault alarms and automatic protection to ensure safe and stable operation of the equipment.
3. Performance Characteristics
- Production Capacity: Under normal conditions, it can stably produce approximately 100L of distilled water per hour. However, actual output may be affected by factors such as steam pressure, feed water quality, and temperature.
- Energy Efficiency: Due to the use of multi-effect evaporation, thermal energy is fully utilized. Compared to single-effect distilled water machines, it significantly reduces the consumption of industrial steam, lowering production costs and energy usage.
- Water Quality: Produces high-quality distilled water, effectively removing impurities, microorganisms, endotoxins, and other harmful substances from the water. The water quality can meet stringent standards in the pharmaceutical industry, such as for preparing water for injection, complying with requirements for conductivity, bacterial endotoxins, and other relevant indicators.
4. Application Scenarios
- Pharmaceutical Industry: Used in small pharmaceutical companies or R&D departments to produce high-purity water for medications such as water for injection, eye drops, and oral solutions, as well as for cleaning pharmaceutical production equipment.
- Medical Facilities: Used in small hospitals or clinics for cleaning and sterilizing medical instruments, as well as for preparing water for dialysis equipment, ensuring hygiene and safety in medical procedures.
- Laboratory Environments: Provides high-purity water for experiments in chemistry, biology, and other laboratory settings, meeting strict requirements for water purity, such as in high-performance liquid chromatography experiments and cell culture experiments.