Sea water spraying system of sea water desalting device

Abstract

The invention provides a sea water spraying system of a sea water desalting device, which is arranged in an evaporator device of a sea water desalting system and comprises a supporting frame, a spraying pipe and more than one nozzle, wherein the spray pipe comprises a spraying main pipe and a spraying branch pipe; nozzle connection seats are uniformly arranged on the spraying branch pipes; the nozzle is connected on the corresponding nozzle connection seat and a tangential centrifugal nozzle; a nozzle adapter is arranged between the nozzle and the nozzle connection seat; and the nozzle adapter is respectively in threaded connection with the nozzle and the nozzle connection seat, and is fixed with thread sealant. According to the invention, the structure and performance of the novel spraying system meet the requirements of the sea water desalting device; and the nozzle is firm in structure and has favorable spraying uniformity, and the spray particle size conforms to MED system requirements, thereby being beneficial to improve outlet water quality of the system, heat transfer of the evaporator and stable operation of the system. Besides, the problem of nonuniform spraying is solved, and the sea water spraying system plays a significant role in ensuring safe operation of equipment and preventing formation of hard scales of a heat exchange pipe.

Description

technical field [0001] The invention belongs to the field of seawater desalination devices, in particular to a spray system of a seawater desalination device. Background technique [0002] According to the operation of the existing seawater desalination system, a major problem of the MED device is serious scaling, which affects the output of the equipment and the stability of operation. Uneven spraying in the sprinkler system is one of the direct causes of fouling. The nozzle commonly used in the spray system is a solid cone nozzle, which belongs to the pressure nozzle, and its spray volume, spray diameter, spray uniformity, and spray particle size are greatly changed by the pressure at the nozzle inlet; while the water pump in the MED system is Frequency conversion water pump, so in actual operation, the pressure at the pump outlet is greatly affected by the frequency conversion of the water pump, and the characteristics of the nozzles change greatly, and the entire spray ...

AI Technical Summary

Problems solved by technology

[0002] According to the operation of the existing seawater desalination system, a major problem of the MED device is serious scaling, which affects the output of the equipment and the stability of the operation.

Uneven spraying in the sprinkler system is one of the direct causes of fouling

The nozzle commonly used in the spray system is a solid cone nozzle, which belongs to the pressure nozzle, and its spray volume, spray diameter, spray uniformity, and spray particle size are greatly changed by the pressure at the nozzle inlet; while the water pump in the MED system is Frequency conversion water pump, so in actual operation, the pressure at the pump outlet is greatly affected by the frequency conversion of the water pump, and the characteristics of the nozzles change greatly, and the entire spray system is very uneven; the nozzle holes of the swirl blades are small, and it is easy to cause blockage during operation; Poor cleanliness inside the MED equipment or fouling of the equipment itself will cause blockage of the nozzle; the welding eccentricity of the nozzle seat is large, which makes the welding quality poor and prone to blockage and other problems

There are also problems such as the blockage of the spray system pipeline itself and the small spray particle size of the solid cone nozzle.

Images