Three Effect External Circulation Evaporator
Menu
Latest News
Product introduction
The three-effect external circulation evaporator is a kind of high efficiency and energy saving evaporation equipment, which uses three series-connected evaporation units to work cooperatively to achieve high efficiency evaporation and concentration of materials. The equipment has been widely used in chemical, environmental protection and other industries, thanks to its multi-stage evaporation technology and thermal reuse strategy, it realizes the double optimization of energy saving and production efficiency.
The triple-effect external circulation evaporator consists of a number of core components
Feed pump: Feed the raw material to be treated to the primary heater.
First effect heater: Use an external heat source (such as raw steam) to initially heat the raw material to boiling.
Second and third effect external cycle evaporator: The second and third effect sequence uses the secondary steam from the previous effect as a heat source to form a series of external cycle evaporation process.
Evaporation chamber and separator: This is where the heated material is evaporated and separated by a gas-liquid separator.
Circulation pump: Responsible for returning the separated liquid to the heater, forming a closed loop circulation system.
Condenser: Condenses the steam generated during evaporation for collection or subsequent treatment.
Solute separator: Solid materials (such as salts, etc.) produced during evaporation are effectively separated here.
The characteristics of the triple-effect external circulation evaporator are as follows
High energy efficiency: The triple evaporation process significantly improves the utilization of heat energy, and can save about 70% of energy consumption compared to traditional single-effect evaporators.
Easy operation: equipped with intelligent control system, precise control of heat input, optimize the efficiency of energy use.
Cleanliness: Evaporation in a closed system ensures a clean and comfortable operating environment. There is a foam removal device to prevent overflow phenomenon, and the part in contact with the material is usually made of imported stainless steel and polished, easy to clean, to meet the hygiene standards of the food and drug industry.
Triple-effect external circulation evaporator has a wide range of applications:
Chemical production: effectively remove inorganic salts and other solutes in the solution to achieve purification and concentration.
Food processing: Suitable for juice, milk and other liquid food concentration, improve the product concentration while maintaining the original flavor and nutrition.
Oil and gas collection and processing: for the treatment of saline water, reducing environmental impact and improving operational efficiency.
Technical principle of
The principle of triple-effect evaporator technology is based on multiple stages of evaporation and heat reuse to improve overall energy efficiency and production efficiency.
First, a triple-effect evaporator is a system composed of three evaporators in series. During operation, the pressure and solution boiling point of each subsequent effect are lower than that of the previous effect, so that the secondary steam produced by the previous effect can be used as a heating medium for the next effect. In other words, the heating chamber of the after-effect is actually the condenser of the pre-effect secondary steam. In general, the first effect requires the consumption of raw steam to provide heat, while the subsequent second and third effects rely mainly on the secondary steam generated by the previous effect for heating.
Second, this design has the advantage of significantly reducing energy consumption, since no additional heat source is required for all effects except the first. The condensate of the first effect is returned to the heat source, while the condensate of the other effects is pooled and exported as desalinated water. Through this process, a single raw steam input can evaporate many times the amount of water.
In addition, in practical industrial applications, three-effect evaporators are particularly suitable for the evaporation and crystallization of solutions that have crystal precipitation. They are widely used in chemical industry, metal mining smelting, large steel pickling waste liquid treatment and power plant wet desulfurization waste liquid treatment. Due to the complex and changeable characteristics of the solution in various factories, it is usually necessary to formulate specific technical solutions for users to choose from for the composition and content of the solution with crystal precipitation.
Production of equipment
WTEYA aims to digital and intelligent production to provide superior products and services to its customers. We not only provide a wide range of standard products which are seriously tested and stable performance to meet a wide range of industrial needs. We also provide custom service, as well as OEM and ODM services, professional design team provides proper solutions for customers to meet their unique needs. We will work closely with each customer to ensure that every device suits customer's process requirements and production process accurately. WTEYA's one-stop service, innovative to create high-quality mechanical products and system solutions, professionally help customer deal with various water treatment problems.
Capacity and size
|
Three-effect evaporation equipment parameter table |
|||||
|
Evaporation capacity（t/h） |
Evaporator type |
Gross power（KW/h） |
Steam consumption（t/h） |
Circulating water consumption（t/h） |
Floor area (L *W * H/m) |
|
1.5 |
Forced-circulation evaporator |
56 |
0.7 |
60 |
2*10*12 |
|
5 |
Forced-circulation evaporator |
118 |
1.92 |
150 |
10*8*14 |
|
4 |
Forced-circulation evaporator |
97 |
1.6 |
135 |
10*6*12 |
|
8 |
Forced-circulation evaporator |
94 |
3.2 |
200 |
14*6*12 |
|
15 |
Forced-circulation evaporator |
144 |
6.5 |
500 |
12*8*14 |
Frequently Asked Questions
Q: What if the heat transfer efficiency of the triple-effect evaporator system decreases?
A: The decrease in heat transfer efficiency may be caused by scale or sediment buildup on the heater surface. The heater needs to be cleaned and maintained regularly, using a CIP (on-site cleaning) system or according to the manufacturer's recommended cleaning procedures to remove dirt. Ensure pre-treatment of incoming materials to reduce components that may form deposits.
Q: How to optimize the energy performance of the triple-effect evaporator?
A: In order to optimize energy consumption, ensure that all operating parameters (such as feed concentration, temperature, pressure, etc.) are precisely controlled. Check and maintain equipment seal performance to avoid steam leakage. At the same time, waste heat can be recovered through energy recovery systems such as heat pumps or thermal recompression, further improving the overall energy efficiency of the system.
Q: What is the cause of excessive noise when the triple-effect evaporator is running?
A: Noise may be caused by the failure or wear of pumps, compressors or other mechanical parts. The equipment should be checked to see if lubrication or parts need to be replaced. In addition, check whether there is air entering the system, because air can cause an air lock phenomenon in the system, producing noise.
Q: How to deal with crystallization blockage in triple-effect evaporator system?
A: Crystallization plugging is usually caused by precipitation of solutes with low solubility at low temperatures. The crystallization process can be controlled by adjusting the operating temperature and pressure, ensuring that the solution evaporates at higher temperatures to avoid crystallization. If a blockage has occurred, the blockage can be dissolved by increasing the temperature or using a chemical solvent.
Q: What if the vacuum degree of the three-effect evaporator can not reach the set value?
A: Insufficient vacuum may be caused by poor vacuum pump performance, system leakage, or inefficient condenser. First, check the performance of the vacuum pump and repair or replace it. Then, the system is fully inspected to determine if there is a leak point and fix it. Finally, clean the condenser to ensure its efficiency.
Previous: Triple Effect Enrichment Evaporator