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CN-122010340-A - Negative pressure solidification purification method

CN122010340ACN 122010340 ACN122010340 ACN 122010340ACN-122010340-A

Abstract

The invention relates to the technical field of water, and discloses a negative pressure solidification purification method, which comprises the following steps: S1, pretreatment: removing suspended solids, microorganisms and other large-particle impurities in water, firstly performing primary filtration by using a coarse filter, then introducing the filtered water into a disinfection box, sterilizing organisms and pathogens in the water by using ultraviolet rays, and adopting the negative pressure solidification purification method, under the environment of multiple working conditions, by utilizing the characteristics of different water qualities and combining the physical principle of heat exchange, aiming at realizing the effective separation of liquid, the method relies on the heat exchange principle, can more effectively utilize energy, reduce energy consumption, achieve the effect of saving electricity, and simultaneously reduce the required heating or refrigerating capacity, thereby also realizing saving heat.

Inventors

  • WANG YIFANG
  • ZHAO QIHONG

Assignees

  • 南天数金(北京)信息产业发展有限公司

Dates

Publication Date
20260512
Application Date
20260306

Claims (5)

  1. 1.A negative pressure solidification purification method is characterized by comprising the following steps: S1, pretreatment, namely removing suspended solids, microorganisms and other large-particle impurities in water, firstly performing primary filtration by using a coarse filter, and then introducing the filtered water into a disinfection box, and sterilizing organisms and pathogens in the water by using ultraviolet rays; S2, temperature and pressure regulation, namely heating water to a target temperature by using a heat exchanger, regulating the system pressure to a negative pressure state lower than the atmospheric pressure by using a pump and a valve, and regulating the treated water to a temperature and pressure condition suitable for negative pressure solidification and purification; S3, negative pressure condensation, namely introducing water into a reactor, adding a coagulant into the reactor to accelerate the condensation reaction to form a condensate, applying negative pressure to promote evaporation, assisting solid formation and separation from the water, and promoting the conversion of condensable components in a negative pressure environment so as to separate the components from the water; S4, separating and collecting, namely thoroughly separating the coagulated liquid from the solid, collecting the liquid and the solid respectively, and collecting the evaporated coagulated liquid as a pure product by using a centrifugal machine; S5, heat recovery, namely recovering heat generated in the treatment process by using a heat exchanger so as to save energy consumption and improve efficiency, and reintroducing the heat released in the condensation and evaporation processes into the system by using a heat pump; s6, post-treatment, namely ensuring that the obtained purified water quality reaches relevant standards, and further carrying out deep purification through carbon filtration, ion exchange, reverse osmosis and other processes if required.
  2. 2. The method of negative pressure coagulation and purification as set forth in claim 1, wherein the coarse filter used in the step S1 is a multi-layer woven cloth screen having a specification of 100-150 mesh.
  3. 3. The method of negative pressure coagulation and purification as set forth in claim 1, wherein the output power of the ultraviolet sterilizer in the step S1 is 10W-30W, and the sterilization time is 2min-5min.
  4. 4. A negative pressure purification process according to claim 1, wherein the heating temperature in step S2 is between 40 ℃ and 90 ℃ and the pressure is in the range of-0.02 MPa to-0.08 MPa.
  5. 5. The method of negative pressure purification by coagulation according to claim 1, wherein the centrifugal force of the centrifuge in the step S4 is 1000g-2000g, and the separation time is 5min-10min.

Description

Negative pressure solidification purification method Technical Field The invention relates to the technical field of water, in particular to a negative pressure solidification purification method. Background The water is an inorganic substance consisting of two elements of hydrogen and oxygen, is nontoxic and can be drunk. Transparent liquid, which is colorless and odorless at normal temperature and pressure, is called a source spring of human life, is an important substance for life maintenance, also called hydrogen oxide, water is one of the most common substances on the earth, and the earth surface is approximately 71% covered by water. It is an important resource for life, including inorganic chemical combination and human beings, and is also the most important component of organisms, and it is a small content in air but an important component of air. In order to improve the safety of drinking water, laboratory research requires high purity water, industrial production requires pure water as a raw material or a coolant, medicine and biotechnology fields require strict purity water and electronic industry requires ultra-high purity water to ensure the performance and reliability of devices, therefore, water needs to be purified, the purpose of the purified water is to ensure that the purity of the water meets specific use requirements and standards to meet the requirements of various fields, however, the existing purification technology water treatment method may not effectively remove trace pollutants and chemical substances, such as heavy metal ions and organic pollutants, so that the water quality cannot reach higher standards, and meanwhile, some existing purification methods also have certain environmental pressure in terms of energy consumption and waste treatment, and for the water quality requirements of higher standards, the traditional water purification technology may need improvement and perfection. Accordingly, a negative pressure coagulation purification method is provided by those skilled in the art to solve the problems set forth in the background art Disclosure of Invention In order to achieve the purpose, the invention provides the following technical scheme that the negative pressure solidification purification method comprises the following steps: S1, pretreatment, namely removing suspended solids, microorganisms and other large-particle impurities in water, firstly performing primary filtration by using a coarse filter, and then introducing the filtered water into a disinfection box, and sterilizing organisms and pathogens in the water by using ultraviolet rays; S2, temperature and pressure regulation, namely heating water to a target temperature by using a heat exchanger, regulating the system pressure to a negative pressure state lower than the atmospheric pressure by using a pump and a valve, and regulating the treated water to a temperature and pressure condition suitable for negative pressure solidification and purification; S3, negative pressure condensation, namely introducing water into a reactor, adding a coagulant into the reactor to accelerate the condensation reaction to form a condensate, applying negative pressure to promote evaporation, assisting solid formation and separation from the water, and promoting the conversion of condensable components in a negative pressure environment so as to separate the components from the water; S4, separating and collecting, namely thoroughly separating the coagulated liquid from the solid, collecting the liquid and the solid respectively, and collecting the evaporated coagulated liquid as a pure product by using a centrifugal machine; S5, heat recovery, namely recovering heat generated in the treatment process by using a heat exchanger so as to save energy consumption and improve efficiency, and reintroducing the heat released in the condensation and evaporation processes into the system by using a heat pump; s6, post-treatment, namely ensuring that the obtained purified water quality reaches relevant standards, and further carrying out deep purification through carbon filtration, ion exchange, reverse osmosis and other processes if required. Preferably, the coarse filter used in the step S1 is a multi-layer textile cloth filter screen, and its specification is 100 mesh-150 mesh. Preferably, the output power of the ultraviolet sterilizer in the step S1 is 10W-30W, and the sterilization time is 2min-5min. Preferably, the heating temperature in step S2 is between 40 ℃ and 90 ℃ and the pressure ranges from-0.02 MPa to-0.08 MPa. Preferably, the centrifugal force of the centrifuge in the step S4 is 1000g-2000g, and the separation time is 5min-10min. Compared with the prior art, the invention provides a negative pressure condensing and purifying method, which has the following beneficial effects: 1. The negative pressure solidification purification method aims at realizing effective separation of liquid by utilizing the characteristics of