Negative-pressure distillation water purifier and solar negative pressure water purifier system

Abstract

The invention provides a negative-pressure distillation water purifier and a solar negative-pressure water purifier system, and relates to the technical field of solar heat collection, sea water desalination and water treatment, the negative-pressure distillation water purifier comprises multiple stages of distillators which are sequentially arranged in a sleeving manner from inside to outside, each stage of distiller comprises a condensation wall and an evaporation tank, and the condensation walls are arranged outside the evaporation tanks in a sleeving manner; one side of each condensation wall and one side of each evaporation tank are welded to one common end plate, the other side of each condensation wall and the other side of each evaporation tank are provided with independent end plates, and the structure has the advantages of compact structure, good pressure bearing performance, low cost, high long-term operation stability and the like. The water purifier system comprises a solar water heater, a negative pressure distillation water purifier and a sealed fresh water tank, during operation, the solar water heater provides hot water for a heat exchange pipe in the negative pressure distillation water purifier, and fresh water is formed on the condensation wall of each stage of distiller and slides to the bottom along the wall surface through multi-stage backheating; and the fresh water flows through the fresh water communicating pipe at the low position of the bottom of the condensation wall, is gathered and finally enters the sealed fresh water tank.

Description

technical field [0001] The application relates to the technical fields of solar heat collection, seawater desalination and water treatment, in particular to a negative pressure distillation water purifier and a solar negative pressure water purifier system. Background technique [0002] Solar energy is clean and pollution-free. Using solar energy to distill and desalinate salt water such as sea water, well water, river and lake water, or tap water with high salt content can provide residents with high-quality drinking fresh water. Solar distillation technology is suitable for areas with good sunshine but lack of water or poor water quality. It can effectively improve the living conditions of local residents and has a good application prospect. [0003] However, in existing literature reports, due to the instability and low energy density of solar energy, the operating temperature of non-focused solar distillation devices is often low (less than 90 ° C), and the water product...

AI Technical Summary

Problems solved by technology

[0005] 1) Directly heat the seawater contained in the transparent glass tube through the focusing of the condenser, but in actual operation, because the glass tube itself absorbs heat during the sunlight transmission process, the condensation wall temperature is high, so the steam generated cannot be well 2) Sunlight passes through the internal glass and water for many times, and it consumes a lot when it enters the absorber, and the effective heating power is low; 3) The glass tube structure is exposed to sunlight for a long time. Difficult to airtight, the one-piece airtight structure is difficult to process and expensive, and the bonding structure is not durable, so it cannot maintain the internal negative pressure operation for a long time; 4) The glass tube structure is difficult to maintain, the mirror surface or glass tube is easily damaged, and requires frequent cleaning and maintenance; 5) The focusing function requires the use of tracking equipment, which makes the actual operation system of the device very complicated, which greatly increases the cost of water production and the failure rate; 6) The problem of dirt treatment during actual operation is not considered

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