CN112357883A - Preparation device and preparation method of ultralight water - Google Patents

Preparation device and preparation method of ultralight water Download PDF

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Publication number
CN112357883A
CN112357883A CN202011051194.XA CN202011051194A CN112357883A CN 112357883 A CN112357883 A CN 112357883A CN 202011051194 A CN202011051194 A CN 202011051194A CN 112357883 A CN112357883 A CN 112357883A
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water
liquid
ultra
condenser
steam
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CN112357883B (en
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张东勋
刘卫
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Shanghai Institute of Applied Physics of CAS
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Shanghai Institute of Applied Physics of CAS
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B5/00Water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D59/00Separation of different isotopes of the same chemical element
    • B01D59/02Separation by phase transition
    • B01D59/04Separation by phase transition by distillation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals

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  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The invention discloses a preparation device of ultra-light water and a preparation method thereof, wherein the preparation device of the ultra-light water comprises a water purification device for filtering raw material water, an evaporator device for heating and evaporating the filtered purified water, a distillation tower for performing isotope exchange on upward steam and downward reflux in the tower, a condenser for converting the steam into liquid water and partially pumping out the steam to be used as the ultra-light water and partially forming the reflux, and a pressure control device, wherein the water purification device is connected with the water inlet end of the evaporator device, the distillation tower and the condenser are sequentially connected, and the pressure control device is connected with the condenser, so that the equipment is compact and the occupied area is small. The device can purify tap water serving as raw material water, greatly reduces the production cost of ultra-light water, is favorable for improving the isotope separation effect, prolongs the service life of the evaporator device, and has the characteristics of convenience in connection, simple structure, energy consumption saving, simplicity and convenience in operation and the like.

Description

Preparation device and preparation method of ultralight water
Technical Field
The invention relates to the technical field of isotope rectification in water, in particular to a preparation device and a preparation method of ultralight water.
Background
In nature, water consists of 2 hydrogen atoms and 1 oxygen atom, but the hydrogen atoms have 3 isotopes with different mass numbers, namely hydrogen (protium), deuterium (deuterium) and deuterium (tritium) of 1, 2 and 3. Wherein, the super-heavy hydrogen has beta radioactivity, the half life is 12.34 years, and the content in nature is extremely low. According to the difference of the mass number of hydrogen atoms, the water formed by the combination with oxygen is called light water, heavy water and super heavy water respectively. Generally, natural water contains only protium and deuterium stable isotopes, wherein the content of deuterium (deuterium) is about 150 ppm. Domestic and foreign studies have shown that the presence of deuterium (D) in water is harmful to the growth and survival of organisms, because deuterium can replace hydrogen to generate additional stress in the DNA helix structure, resulting in the deviation, breakage and dislocation of the double helix structure, and further leading to disordered arrangement and even variation. The higher the deuterium content in water is, the more harmful the deuterium to the organism is, and in addition, the chemical properties of deuterium and hydrogen are very similar, so that the deuterium is difficult to metabolize out after entering a human body. At present, organisms in the nature have deuterium poisoning phenomena with different degrees on natural water with the deuterium content of about 150ppm, and have generated adaptability.
Unlike natural water, the ultra-light water is water with deuterium content reduced to 130ppm by removing deuterium in natural water by using a very advanced hydrogen isotope rectification technology, and is also called deuterium-depleted water (DDW). The ultralight water with different deuterium contents has different effects, for example, the ultralight water with 25ppm can be used for preventing and assisting treatment of chronic diseases and can enhance the immunity; 50ppm of ultra-light water can repair genes, regulate vasodilatation, reduce blood fat and protect a cardiovascular system; the 80ppm ultra-light water can be used for adjuvant treatment of tumor, reducing fasting blood glucose level, and relieving insulin resistance.
At present, the main processes for industrially producing the ultra-light water include a reduced pressure distilled water method, an electrolysis and hydrogen-oxygen complex method, a liquid hydrogen rectification method, a chemical isotope exchange method and the like. The reduced pressure distillation process adopts natural water as raw material and regular silk screen packing as column packing, and has the features of simple process, convenient operation, high safety, high reliability, etc. but has the demerits of small separation coefficient, great power consumption, great volume, etc. and needs relatively high tower height to realize super light water with relatively low deuterium content. The water electrolysis method has the advantages of high separation coefficient, low operation temperature, small volume and the like, but needs the hydrogen-oxygen combination of dangerous gases, and has potential safety hazard. H2-H2O、H2O-H2The S-type exchange method belongs to the chemical exchange process of isotope exchange, and utilizes the concentration difference of deuterium in liquid phase and gas phaseThe exchange reaction is carried out in sequence at different temperatures, so as to achieve the purpose of reducing the concentration of deuterium in a gas phase. The method has simple process, also relates to the use of inflammable and explosive gas H2 and corrosive H2S, and has potential safety hazard.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a preparation device of ultra-light water and a preparation method thereof, and the preparation device has the characteristics of low energy consumption, simplicity in operation, high separation efficiency and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a preparation facilities of ultralight water, is including being used for carrying out filterable water purification installation to raw materials water, being used for carrying out the evaporimeter device that evaporates of filtered purification water heating, being used for making the ascending steam in the tower and carrying out isotope exchange's distillation column with decurrent backwash liquid, being used for making steam become liquid water and make partial liquid water be taken out as ultralight water, partial formation condenser and the pressure control device of backwash liquid, water purification installation is connected with the end of intaking of evaporimeter device, distillation column, condenser connect gradually, pressure control device is connected with the condenser.
In the preparation device of the ultralight water, the distillation tower comprises a tower body, two supporting partition plates, two wire mesh fillers, stainless steel bulk fillers subjected to surface treatment and a liquid redistributor, wherein the supporting partition plates are fixed at the bottom and the inner side of the top of the tower body, the liquid redistributor is arranged at the inner side of the top of the tower body and positioned at the outer side of the supporting partition plate at the top, the wire mesh fillers are positioned at the inner side of the supporting partition plates, and the bulk fillers are filled between two adjacent wire mesh fillers.
In the preparation device of the ultra-light water, the silk screen filler at the bottom of the distillation tower is fixed on the upper surface of the bottom supporting partition plate, and the silk screen filler at the top of the tower body is fixed on the lower surface of the top supporting partition plate.
In the preparation device of the ultra-light water, the bulk stainless steel filler such as triangular spiral filler, Heli-Pak and the like is used as the bulk filler, and the surface of the bulk stainless steel filler is subjected to corrosion treatment.
In the preparation facilities of ultralight water, the evaporimeter device includes the barrel, be provided with the level gauge that is used for monitoring the internal liquid surplus of barrel, be used for making the heat exchanger of heat exchange between waste water and the raw materials water in the barrel, be used for heating rod, power regulator and the control module for the water heating in the barrel, level gauge and heat exchanger set up respectively in the both sides of barrel, the heating rod sets up the lower part in the barrel, the heating rod is connected with the power regulator electricity, the inlet tube of heat exchanger is provided with the solenoid valve, level gauge, power regulator and solenoid valve all are connected with the control module electricity.
In the preparation device of the ultralight water, the condenser comprises a shell, cooling coils are symmetrically arranged in the shell, air outlet pipes are arranged on two sides of the shell, and a transition section for outputting the ultralight water and temporarily storing reflux liquid is arranged at the bottom of the shell.
In the preparation device of the ultra-light water, the water purification device comprises a water storage tank, and a filter, a water softener, a first-stage reverse osmosis membrane and a second-stage reverse osmosis membrane which are connected in sequence are arranged in the water storage tank.
In the preparation device of the ultra-light water, the distillation tower and the evaporator device are wrapped with heat-insulating layers.
A preparation method of a preparation device of ultra-light water comprises the following steps:
purifying tap water by a water purification device to prepare purified water, and introducing the purified water into an evaporator through an electromagnetic valve;
the evaporator device heats purified water and reflux liquid from the distillation tower to form water vapor, the water vapor enters the distillation tower, and the metering pump discharges waste water outwards according to a set flow;
carrying out isotope exchange on upward steam and downward reflux in the distillation tower from the distillation tower, and enabling the steam to enter a condenser and the reflux to enter an evaporator;
condensing the steam into liquid water by a condenser, outputting part of the liquid water as ultra-light water, and returning part of the liquid water as reflux to the distillation tower.
In the preparation method of the device for preparing ultra-light water, the distillation tower performs isotope exchange between the steam and the reflux liquid in the tower, and the step of leading the steam to enter the condenser comprises the following steps:
after the steam enters the condenser and is condensed into liquid water, part of the liquid water flows back to the distillation tower downwards and is subjected to isotope exchange with the steam flowing upwards in the distillation tower.
The pressure in the condenser is adjusted by a pressure control device, so that the steam in the distillation tower enters the condenser, and the reflux liquid enters the evaporator.
Compared with the prior art, the preparation device and the preparation method of the ultralight water provided by the invention have the advantages that the evaporator device, the distillation tower and the condenser are directly connected, so that the equipment is compact and the occupied area is small. When preparing the ultra-light water, the raw material water is treated by the water purification device, then enters the evaporator device to be changed into steam and the steam rises into the distillation tower, the upward steam and the upward reflux liquid are subjected to isotope exchange in the distillation tower and then enter the condenser, the steam is changed into liquid water through the condenser treatment, part of the liquid water is extracted to be used as the ultra-light water, and part of the liquid water forms the condenser of the reflux liquid, and the pressure of the equipment is in a stable state through the pressure control device. The invention can purify tap water as raw material water, greatly reduces the production cost of ultra-light water, is favorable for improving the isotope separation effect, prolongs the service life of the evaporator device, and has the characteristics of simple structure, simple and convenient operation and the like.
Drawings
Fig. 1 is a schematic structural diagram of a device for preparing ultra-light water provided by the invention.
Fig. 2 is a schematic structural diagram of a condenser of the apparatus for preparing ultra-light water according to the present invention.
Fig. 3 is a schematic structural diagram of a distillation column of the apparatus for preparing ultra light water according to the present invention.
FIG. 4 is a schematic diagram of a multi-column parallel connection structure of the device for preparing ultra-light water provided by the invention.
Fig. 5 is a flowchart of a preparation method of the device for preparing ultra-light water according to the present invention.
The reference numbers in the figures illustrate:
water purification device 1 and pressure pump 11
Evaporator device 2, liquid level meter 21, heat exchanger 22, heating rod 23, electromagnetic valve 24, water pump 25, drain valve 26 and power regulator 27
Distillation tower 3, tower body 31, supporting partition plate 32, wire mesh packing 34, bulk packing 35, liquid redistributor 36 and flange 37
Condenser 4, metering pump 42 and drain valve 41
Pressure control device 5
Drainage pipe 6
Pure water pipeline 7
Ultra-light water pipeline 8
Pressure control line 9
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
Referring to fig. 1, the apparatus for preparing ultra light water according to the present invention includes a water purification apparatus 1 for filtering raw water (e.g., tap water), an evaporator apparatus 2 for heating and evaporating the filtered purified water, a distillation column 3 for performing isotope exchange between upward steam in the column and downward reflux in the column, a condenser 4 for converting the steam into liquid water and extracting a part of the liquid water as ultra light water and a part of the reflux, and a pressure control apparatus 5, wherein an input end of the water purification apparatus 1 is connected to a tap, an output end thereof is connected to a water inlet end of the evaporator apparatus 2, the distillation column 3, and the condenser 4 are sequentially connected, and the pressure control apparatus 5 is connected to the condenser 4.
When preparing the ultra-light water, firstly, raw material water is filtered by the water purification device 1, then the raw material water enters the evaporator device 2 to be changed into steam and the steam rises into the distillation tower 3, the steam is subjected to isotope exchange in the distillation tower 3 and then enters the condenser 4, the steam is changed into liquid water after being treated by the condenser 4, the ultra-light water is obtained, part of the liquid water is extracted to be used as an ultra-light water product, part of the ultra-light water product forms reflux liquid and flows back to the distillation tower 3, and the pressure of the equipment is in a stable state by the pressure control device 5.
The invention can purify tap water as raw material water, greatly reduces the production cost of ultra-light water, is favorable for improving the isotope separation effect, prolongs the service life of the evaporator device 2, and has the characteristics of simple structure, simple and convenient operation and the like.
Wherein, water purification installation 1 includes the storage water tank (not shown in the figure), be provided with the filter (not shown in the figure), water softener (not shown in the figure), first order reverse osmosis membrane (not shown in the figure) and second grade reverse osmosis membrane (not shown in the figure) that connect gradually in the storage water tank. During production, city tap water is used as raw material water, and purification processes such as filtration, mineral removal, related reverse osmosis and the like are carried out, so that particle impurities, residual chlorine, organic matters, most calcium and magnesium ions, conductivity and the like contained in the water are reduced as much as possible, the conductivity of the water is enabled to reach below 0.2 mu S/cm, corrosion to pipelines and deposition on heating elements in the evaporator device 2 are avoided, and the service life of the evaporator device 2 is prolonged.
An ultraviolet lamp (not shown in the figure) is also arranged in the water storage tank to sterilize and disinfect the water. Furthermore, a liquid level monitoring and alarming system (not shown in the figure) is arranged in the water storage tank, so that when the liquid level in the water tank is low, the water storage tank is timely supplemented with water.
Referring to fig. 1, the evaporator 2 includes a barrel (not shown), the barrel is provided with a level meter 21 for monitoring a remaining amount of liquid in the barrel, a heat exchanger 22 for exchanging heat between wastewater in the barrel and raw water, a heating rod 23 for heating water in the barrel, a power regulator 27, and a control module (not shown), the level meter 21 and the heat exchanger 22 are respectively disposed at two sides of the barrel, the heating rod 23 is disposed at a lower portion in the barrel, the heating rod 23 is electrically connected to the power regulator 27, a water inlet pipe of the heat exchanger 22 is provided with an electromagnetic valve 24, the level meter 21, the power regulator 27, and the electromagnetic valve 24 are electrically connected to the control module, so that the level meter 21 controls a water inlet amount of the electromagnetic valve 24 through the control module according to the remaining amount of water in the barrel, thereby controlling a raw water inlet amount to the barrel, the liquid level in the cylinder is maintained to fluctuate in a small range, so that the liquid level in the cylinder is stable.
Wherein, level gauge 21 links to each other with the barrel through upper and lower pipeline, makes the liquid level in the level gauge 21 unanimous with the liquid level in the barrel, level gauge 21 can directly measure the liquid level to it is more accurate to make level gauge 21 detect. Furthermore, the heat exchanger 22 also preheats the raw water when the waste water in the cylinder is discharged, so as to reduce the energy consumption of the evaporator device 2 and reduce the production cost.
Further, the water outlet end of the heat exchanger 22 is provided with a water suction pump 25 for discharging partial waste water (i.e. waste water after heat exchange) in the cylinder, and the water suction pump 25 can select a metering pump to accurately pump the waste water in the cylinder. The bottom of the cylinder is also provided with a drain valve 26 for draining the stored water.
A pressure pump 11 is arranged between the water purification device 1 and the evaporator device 2, so that purified pure water can be directly fed into the evaporator device 2.
Referring to fig. 4, the distillation tower 3 includes a tower body 31, two supporting partitions 32, two wire mesh fillers 34, surface-treated stainless steel bulk fillers 35, and a liquid redistributor 36, wherein the supporting partitions 32 are fixed at the bottom and the top of the tower body, the liquid redistributor 36 is disposed at the top of the tower body, and is located at the outside of the supporting partition 32, the wire mesh fillers 34 are located at the inside of the supporting partitions 32, the bulk fillers 35 are filled between two adjacent wire mesh fillers 34, and the supporting partitions are used for supporting the wire mesh fillers. The reflux liquid in the condenser 4 is uniformly distributed on the inner section of the column through the liquid redistributor 36, so that the reflux liquid flowing back downwards is subjected to isotope exchange with the steam rising in the distillation tower 3.
In this embodiment, the mesh packing 341 at the bottom of the distillation tower is fixed on the upper surface of the bottom supporting partition 321, and the mesh packing 342 at the top of the tower body is fixed on the lower surface of the top supporting partition 322, so as to increase the isotope exchange efficiency by the symmetrical structure.
The tower body 31 is made of stainless steel seamless pipelines, and two ends of the tower body are welded with standard flanges 37 so as to be conveniently connected with the evaporator device 2 and the condenser 4, and the tower body 31 can be formed by connecting a plurality of sections of pipelines. In production, the height and the inner diameter of the tower body 31 can be selected according to the content of deuterium in the required ultralight water and the yield, and for the tower body 31 with a certain height and inner diameter, the yield can be gradually improved along with the increase of the content of deuterium in the ultralight water.
In this embodiment, the tower body 31 may be connected in parallel (as shown in fig. 4), for example, the total yield of the ultra-light water with a certain deuterium content can be increased by connecting multiple columns in parallel at the same height of the tower, thereby meeting the requirement of higher yield.
The bulk packing is bulk stainless steel packing such as triangular spiral packing, Heli-Pak and the like, the surface of the bulk packing is subjected to corrosion treatment, so that the separation efficiency is high, and on the premise of the same separation efficiency, the bulk packing can greatly reduce the separation height (namely the height of a distillation tower), so that the equipment structure is compact, and the occupied space is reduced.
Referring to fig. 2, the condenser 4 includes a shell 43, the shell 43 is symmetrically provided with a cooling coil 40 therein, the shell is provided with a plurality of air outlet pipes 44, the bottom of the shell 43 is provided with a transition section 46 for outputting ultra-light water and temporarily storing reflux liquid, and the bottom of the transition section 46 is provided with a flange 47 for connecting with the distillation tower 3. The outlet pipe 44 is connected to a vacuum system (not shown) to control the negative pressure of the condenser 4. When steam in the distillation column enters the condenser, the steam moves towards two sides under the action of pressure due to negative pressure in the condenser, and after encountering the cooling coil 40 with lower temperature, the steam is condensed into liquid water (the liquid water is ultra-light water at this time) on the outer wall of the cooling coil 40, flows to the inner bottom of the shell 43 along the pipe wall, and then flows into the transition section 46, wherein one part of the liquid water is output as an ultra-light water product, and the other part of the liquid water is returned to the distillation column as reflux.
Preferably, the two groups of cooling coils 40 are located at two sides of the housing, when the steam in the distillation tower 3 enters the condenser 4, the steam moves to two sides under the pressure due to the negative pressure in the condenser 4, and after encountering the cooling coil 40 with lower temperature, the steam condenses into liquid water on the outer wall of the cooling coil 40, flows to the inner bottom of the housing along the pipe wall, and then flows into the transition section 46, wherein one part is output as ultra-light water, and the other part enters the distillation tower 3 as reflux.
The transition section comprises an outer wall 461 and an inner wall 462, the outer wall 461 and the inner wall 462 are arranged at a preset interval to form a cavity for temporarily storing reflux liquid, the bottom of the inner wall 462 is provided with an annular plate (not shown in the figure), the annular plate is uniformly provided with a plurality of liquid return pipes (not shown in the figure) through which the reflux liquid flows into the distillation tower 3, the horizontal direction of the outer wall is provided with a liquid discharge pipe (not shown in the figure) for outputting ultralight water, and the ultralight water in the cavity is output through the liquid discharge pipe. Moreover, the transition section is directly connected with the distillation tower 3, so that the transition section has a certain temperature, the liquid in the cavity of the transition section has a preheating effect, and the reflux liquid flows back to the distillation tower 3, so that the energy consumption of the distillation tower 3 is reduced.
The liquid discharge pipe is provided with a liquid discharge valve 41, one side of the liquid discharge valve 41 is provided with a metering pump 42, and the ultra-light water with different deuterium contents can be obtained by adjusting the flow rate of the metering pump 42.
Preferably, the distillation tower 3 and the evaporator 2 are covered with heat insulating layers (not shown in the figure) to perform the functions of heat insulation and energy loss reduction, so as to reduce the energy consumption of the distillation tower 3 and the evaporator 2.
The pressure control device 5 is mainly composed of a vacuum pump (not shown), a ball valve (not shown), a buffer container (not shown), and a pressure gauge (not shown), and is used for adjusting and controlling the pressure in the distillation system (for example, the pressure is controlled at 0.05-1 bar). The vacuum pump is connected to the condenser 4 through a ball valve and a buffer container, and the condenser 4, the distillation tower 3 and the evaporator device 2 are in a communicated state, so that the pressure of the distillation system is adjusted.
Referring to fig. 5, based on the apparatus for preparing ultra light water, the present invention further provides a method for preparing the apparatus for preparing ultra light water, which includes the following steps:
s100, purifying tap water by a water purification device to prepare purified water, and introducing the purified water into an evaporator through an electromagnetic valve;
s200, heating purified water and reflux liquid from the distillation tower by an evaporator device to form water vapor, feeding the water vapor into the distillation tower, and discharging wastewater outwards by a metering pump according to a set flow;
s300, carrying out isotope exchange on upward steam in the tower and downward reflux in the tower by using a distillation tower, and enabling the steam to enter a condenser and the reflux to enter an evaporator;
s400, condensing the steam into liquid water through a condenser, pumping out part of the liquid water as ultra-light water, and returning part of the liquid water as reflux to the distillation tower.
Wherein, the step S300 includes:
and S310, after the steam enters a condenser and is condensed into liquid water, part of the liquid water flows back to the distillation tower downwards and is subjected to isotope exchange with the steam flowing upwards in the distillation tower.
And S320, adjusting the pressure in the condenser through a pressure control device, enabling the steam in the distillation tower to enter the condenser, and enabling the reflux liquid to enter the evaporator.
In the preparation process, the pressure of the distillation system is controlled at 0.05-1bar, the temperature of the evaporator unit 2 and the distillation tower 33 is controlled at 50-120 deg.C, and the temperature of the cooling water in the condenser 44 is controlled at 10-25 deg.C, which is optimal.
In the first embodiment, the two-stage reverse osmosis of the water purification apparatus 1 produces pure water at a rate of 100L/hr, with a deuterium content of about 147ppm in the pure water, a tank volume of 1000L, and a head of the pressure pump 11 of 10 m. The evaporator device 2 has a diameter of 600mm, a height of 500mm, a total volume of 200L, a maximum heating power of 50kW, and a set operation height of 300mm for the liquid level meter 21. The inner diameter of the distillation column 3 is 200mm, each section is 2500mm, and the total number of the sections is 3. The bulk filler is stainless steel triangular spiral filler, the material is SS321, the size is 3 multiplied by 0.2mm, and the surface is subjected to corrosion treatment.
The pressure control device 5 evacuates the distillation system to an absolute pressure of less than 0.2bar, and heats the water filled in the distillation system to boil with a power of about 20 kW. After a period of stabilization, after the bulk filler is cleaned and wetted, the water is discharged to the set liquid level of the evaporator apparatus 2, and the liquid level starts to be linked with the solenoid valve 2424. At the same time, the water pump 25 is turned on at a rate of 16L/hour to draw water from the evaporator unit 2. After stabilization, the pressure of the distillation system is reduced to about 0.2bar, and the metering pump 42 is started at the rate of 1.8L/h, so that the deuterium content in the ultra-light water is below 25 ppm.
In the second embodiment, the two-stage reverse osmosis of the water purification apparatus 1 produces pure water at a rate of 100L/hr, with a deuterium content of about 147ppm in the pure water, a tank volume of 1000L, and a head of the pressure pump 11 of 10 m. The evaporator device 2 has a diameter of 700mm, a height of 600mm, a total volume of 250L, a maximum heating power of 60kW, and a set operation height of 300mm for the liquid level meter 21. Corresponding to an internal diameter of 300mm in the distillation column 3, each section is 3000 mm. The bulk filler is stainless steel triangular spiral filler, the material is SS321, the size is 3 multiplied by 0.2mm, and the surface is specially treated.
The pressure control device 5 evacuates the distillation system to an absolute pressure of less than 0.2bar, and heats the water filled in the distillation tower 3 to boil with a power of about 28 kW. After a period of stabilization, the bulk filler is discharged to the set liquid level of the evaporator device 2 after being cleaned and wetted, and the liquid level is linked with the electromagnetic valve 24. At the same time, the water pump 25 is turned on at a rate of 30L/hour to draw water from the evaporator unit 2. After stabilization, the pressure of the distillation system is reduced to about 0.2bar, and the metering pump 42 is started at the rate of 2.5L/h, so that the deuterium content in the ultra-light water is below 50 ppm.
In the third embodiment, with continuing reference to fig. 4, the evaporator 2, the distillation tower 3 and the condenser 4 are connected in parallel, the two-stage reverse osmosis of the water purification apparatus 1 produces pure water at a rate of 2000L/h, the deuterium content in the pure water is about 147ppm, the volume of the water storage tank is 1000L, and the head of the pressure pump 11 is 10 m. The main process was the same as the conditions of the distillation column 3 in the second example above, the evaporator apparatus 2 had a diameter of 700mm, a height of 500mm, a total volume of 250L, a maximum heating power of 60kW, and the liquid level gauge 21 set an operating height of 300 mm. Corresponding to an internal diameter of 300mm in the distillation column 3, each section is 3000 mm. The bulk filler is stainless steel triangular spiral filler, the material is SS321, the size is 3 multiplied by 0.2mm, and the surface is specially treated.
When the production is stable, 50kg of ultra-light water with 50ppm of deuterium content can be produced in each distillation tower 3 per day. When 20 columns are adopted in parallel, 1000kg of ultra-light water with the deuterium content of 50ppm can be produced every day.
In summary, according to the apparatus for producing ultra light water and the method for producing the same provided by the present invention, when the apparatus for producing ultra light water is used for producing ultra light water, the raw material water is treated by the water purification apparatus, and then enters the evaporator apparatus to be changed into steam, and the steam is raised into the distillation column, the steam is subjected to isotope exchange in the distillation column, and then enters the condenser, after being treated by the condenser, part of the steam forms reflux liquid and flows back to the distillation column, and the other part of the steam is produced into ultra light water, and the pressure of the apparatus is kept in a stable state by the pressure control apparatus. The invention can purify tap water as raw material water, greatly reduces the production cost of ultra-light water, is favorable for improving the isotope separation effect, and prolongs the service life of the evaporator device.
In addition, the invention has the characteristics of convenient connection, simple structure, energy consumption saving, simple control and the like.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims (10)

1. The device for preparing the ultra-light water is characterized by comprising a water purification device for filtering raw water, an evaporator device for heating and evaporating the filtered purified water, a distillation tower for performing isotope exchange on upward steam and downward reflux in the tower, a condenser for changing the steam into liquid water and pumping out part of the liquid water to be used as the ultra-light water and partially form the reflux and a pressure control device, wherein the water purification device is connected with the water inlet end of the evaporator device, the distillation tower and the condenser are sequentially connected, and the pressure control device is connected with the condenser.
2. The apparatus of claim 1, wherein the distillation column comprises a column body, two supporting partitions, two wire mesh packings, surface-treated stainless steel bulk packings, and a liquid redistributor, wherein the supporting partitions are fixed at the bottom and inside of the top of the column body, the liquid redistributor is disposed inside the top of the column body and outside the supporting partitions at the top, the wire mesh packings are located inside the supporting partitions, and the bulk packings are filled between two adjacent wire mesh packings.
3. The apparatus for preparing ultra light water as claimed in claim 2, wherein the wire mesh packing at the bottom of the distillation column is fixed to the upper surface of the bottom support partition, and the wire mesh packing at the top of the column body is fixed to the lower surface of the top support partition.
4. The apparatus for preparing ultra light water as claimed in claim 2, wherein the bulk filler is a triangular spiral filler, a Heli-Pak bulk stainless steel filler, and the surface of the filler is subjected to corrosion treatment.
5. The device for preparing the ultra-light water as claimed in claim 1, wherein the evaporator device comprises a barrel, the barrel is provided with a liquid level meter for monitoring the liquid residual amount in the barrel, a heat exchanger for exchanging heat between the waste water in the barrel and the raw water, a heating rod for heating the water in the barrel, a power regulator and a control module, the liquid level meter and the heat exchanger are respectively arranged at two sides of the barrel, the heating rod is arranged at the lower part in the barrel and electrically connected with the power regulator, a water inlet pipe of the heat exchanger is provided with an electromagnetic valve, and the liquid level meter, the power regulator and the electromagnetic valve are all electrically connected with the control module.
6. The device for preparing the ultra-light water as claimed in claim 1, wherein the condenser comprises a shell, the shell is internally and symmetrically provided with cooling coils, the two sides of the shell are respectively provided with an air outlet pipe, and the bottom of the shell is provided with a transition section for outputting the ultra-light water and temporarily storing reflux liquid.
7. The apparatus for preparing ultra light water according to claim 1, wherein the water purifying apparatus comprises a water storage tank, and a filter, a water softener, a primary reverse osmosis membrane and a secondary reverse osmosis membrane, which are connected in sequence, are provided in the water storage tank.
8. The apparatus for producing ultra light water according to any one of claims 1 to 7, wherein the distillation column and the evaporator unit are externally covered with an insulating layer.
9. A preparation method of a preparation device for ultra-light water is characterized by comprising the following steps:
purifying tap water by a water purification device to prepare purified water, and introducing the purified water into an evaporator through an electromagnetic valve;
the evaporator device heats purified water and reflux liquid from the distillation tower to form water vapor, the water vapor enters the distillation tower, and the metering pump discharges waste water outwards according to a set flow;
carrying out isotope exchange on upward steam in the tower and downward reflux in the tower by a distillation tower, and enabling the steam to enter a condenser and the reflux to enter an evaporator;
condensing the steam into liquid water through a condenser, pumping out part of the liquid water as super light water, and returning part of the liquid water as reflux to the distillation tower.
10. The method for preparing an apparatus for preparing ultra light water as claimed in claim 9, wherein the step of isotopically exchanging upward vapor in the column with downward reflux in the column by the distillation column, and feeding the vapor into the condenser and the reflux into the evaporator comprises:
after the steam enters a condenser and is condensed into liquid water, part of the liquid water flows back to the distillation tower downwards and carries out isotope exchange with the steam flowing upwards in the distillation tower;
the pressure in the condenser is adjusted by a pressure control device, so that the steam in the distillation tower enters the condenser, and the reflux liquid enters the evaporator.
CN202011051194.XA 2020-09-29 2020-09-29 Preparation device and preparation method of ultralight water Active CN112357883B (en)

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