Forced circulation evaporator equipment

NegotiableUpdate on 02/20

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Forced circulation evaporator is an industrial equipment that uses external power (such as a circulation pump) to force the solution to circulate inside the equipment, achieving efficient evaporation and concentration. It forces the solution to flow through the heating tube at a high speed of 2-5m/s through a pump, overcoming the problems of low circulation speed and poor heat transfer effect caused by density differences in natural circulation evaporators. It is particularly suitable for handling solutions with high viscosity, easy scaling, easy crystallization, or containing insoluble solids.

Product Details

Core Features

Forced circulation, efficient heat transfer

The solution flows at high speed under the drive of the pump, forming a turbulent state, significantly improving the heat transfer coefficient (up to 800-3000W/(m ² · K)), and the heat transfer efficiency is more than 40% higher than that of a natural circulation evaporator. Meanwhile, high-speed flow can effectively slow down the scaling rate and extend the service life of equipment.

Strong adaptability and wide application

Suitable for fields such as chemical engineering, pharmaceuticals, food processing, and environmental engineering, particularly adept at handling:

High viscosity solutions (such as sauces, polymer solutions);

Easy to scale/crystallize solutions (such as salt wastewater, crystallization mother liquor);

Thermally sensitive materials (low-temperature evaporation to avoid material decomposition);

Containing solid suspension (with a solid content of up to 30%).

Flexible operation and strong controllability

By adjusting the speed of the circulation pump, the solution flow rate and evaporation rate can be precisely controlled;

Specially designed separators can achieve efficient gas-liquid separation, with crystals crystallizing according to the required size;

Wide range of evaporation temperature (-20 ℃ to 140 ℃), suitable for different process requirements.

Compact structure, energy-saving and consumption reducing

The equipment has a small footprint and a simple and smooth layout;

The water consumption per ton of evaporation is 15-100KW · h, and the operating cost is only 1/8 to 1/2 of that of multi effect evaporation;

Support single effect, dual effect, triple effect, and multi effect designs to further improve energy utilization efficiency.

working principle

Circulating heating: The circulating pump sucks in the solution from the bottom and pumps it into the heating tube at high speed, heating the solution to a superheated state.

Flash evaporation separation: The superheated solution enters the separator, and the sudden drop in pressure causes some of the liquid to flash. Steam is discharged from the top, and the concentrated liquid is blocked and falls down.

Recycling: The concentrated liquid returns to the circulation pump through the bottom of the separator and re enters the heating tube, forming a continuous cycle.

Application scenarios

Chemical industry: treatment of wastewater containing crystalline salts and high concentration organic wastewater;

Pharmaceutical industry: Concentrate thermosensitive drugs while retaining active ingredients;

Food processing: Dehydration of high viscosity sauces, juice concentration;

Environmental Protection Engineering: Achieve zero discharge of industrial wastewater, recycle clean water and valuable components.

Pros and Cons Analysis

Advantages: High heat transfer efficiency, anti scaling, strong adaptability, high operational flexibility, and good energy-saving effect.

Disadvantages: The equipment cost is relatively high, and the operation and maintenance costs of the pump need to be borne. The pump shaft seal requires regular maintenance.