A detachable and washable seawater desalination device

Abstract

The invention relates to a detachable and washable seawater desalination device. The invention includes an equipment cylinder composed of an upper head, a condensation cylinder, an evaporation cylinder, and a lower head. The equipment cylinder is provided with a vertical condensation center cylinder and a vertical evaporation center cylinder, and the condensation center cylinder is located in the evaporation center. Above the cylinder, there is a ring-shaped condensation partition between the lower end of the condensation center cylinder and the inner wall of the condensation cylinder, and a ring-shaped evaporation partition between the lower end of the evaporation center cylinder and the inner wall of the evaporation cylinder; there is an inlet around the condensation center cylinder. Condensation and heat exchange tubes for seawater, the evaporation center tube is surrounded by evaporation heat exchange tubes leading to the waste water of the ship system, and the side of the evaporation cylinder is provided with a desalinated seawater inlet above the evaporation partition, and the desalinated seawater inlet is connected to the condensation heat exchange The pipe outlet is connected. The invention adopts a detachable and washable structure to concentrate seawater boiling and seawater condensation in one cylinder, optimize the seawater desalination process, improve the seawater desalination efficiency, improve the adaptability and operation stability of the equipment, and prolong the service life of the equipment.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, and in particular relates to a detachable and washable seawater desalination device. Background technique [0002] With the integration of the global economy, the exchange of goods and materials between countries is frequent, and large-scale ship transportation has obvious cost advantages. However, as the size of the ship increases, the number of people on board also increases, and the drinking water required for it also increases. How to use seawater for drinking water? Supplies have always been a concern. [0003] At present, ships use the vacuum distillation method to desalinate seawater for fresh water supply. This method is to heat seawater in the evaporator and evaporate it into steam, and the steam enters the condenser through the pipeline and is cooled by seawater to become fresh water. The method needs two heat exchangers, the heat exchangers are connected by pipelines, an...

AI Technical Summary

Problems solved by technology

However, the condenser and the evaporator are independent of each other. The steam generated by the evaporator needs to enter the condenser through the pipeline between the condenser and the evaporator, and the valve on the pipeline. Lag has occurred, the amount of cooling seawater in the condenser is more than the amount of seawater corresponding to the steam, resulting in excessive condensation of steam, resulting in a decrease in system pressure, deviating from normal operating conditions, and in severe cases, accidents will occur

[0006] 2. The system is complex, requiring a lot of equipment, pipelines, valves, etc., the equipment investment cost is high, and the maintenance cost of operation is also very high

In addition, it occupies a large area, which is a disadvantage for ships with tight space

[0007] 3. Most of the evaporators and condensers used are non-removable structures, and the dirt on the heat exchange surface can only be cleaned by chemical methods

The dirt that cannot be cleaned by chemical methods with strong adhesion will affect the heat transfer effect of the equipment. When the dirt reaches a certain level, the equipment can only be replaced

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