27 results about "Salt deposit" patented technology

The invention relates to a corrosion and scale inhibitor for TRT and a preparation method of the corrosion and scale inhibitor, and relates to the technical field of chemical reagents. The corrosion and scale inhibitor is prepared from the following components in percentage by mass: 15 to 20 percent of morpholine, 25 to 30 percent of aminoethyl ethanolamine, 15 to 20 percent of 1-hydroxyethyl-2-undecylimidazoline onium salt, 12 to 18 percent of sodium polyaspartate, 8 to 12 percent of itaconic acid-allylsulfonic acid copolymer, 1 to 3 percent of alkyl glycoside and the balance of a mixture of water and glycerol in a mass ratio of 1 to (1 to 3). The corrosion and scale inhibitor disclosed by the invention can synchronously inhibit corrosion of an acid medium and scale deposition of salts such as NH4Cl and the like, and the corrosion inhibition rate and the scale inhibition rate are effectively improved.

The invention discloses a plane cocoon evaporator capable of achieving large-scale production of a transverse layered Janus structure, a method and application. The method comprises the steps that the surface of a flat cocoon is coated with super-hydrophilic polypyrrole, the top of the flat cocoon is coated with super-hydrophobic PDMS, and the flat cocoon is transformed into a Janus structure evaporator; the transversely layered fiber Janus structure enables an evaporator to convey water to a super-hydrophilic / hydrophobic interface through the bottom, and the water is evaporated without salt precipitation; the top absorbs solar energy and transfers heat to the inner bottom of the evaporator, heat loss is reduced to the maximum extent through efficient evaporation, and due to the high evaporation rate and evaporation efficiency of the plane cocoon evaporator, the plane cocoon evaporator can continuously evaporate in a high-salt solution without salt deposition in the sun. The Janus solar seawater evaporator is prepared on a large scale through a simple infiltration and spraying method, the problem of large-scale preparation of the evaporator of a transverse lamellar structure is solved, and the evaporator is environmentally friendly, economical, salt-resistant and thermal-positioning and is expected to be applied to seawater desalination on a large scale.

The invention relates to a preparation method of a cathode catalyst with a multilevel structure for electro-catalysis of carbon dioxide reduction, and belongs to the field of new energy nano materials and the technical field of electro-catalysis. The invention aims to solve the problems of low selectivity in acidic electrolyte, salt deposition caused by introduction of excessive potassium ions and the like. According to the main scheme, an electrostatic spinning method is adopted for preparing a Zn < 2 + > / PAN nanofiber membrane, then the Zn < 2 + > / PAN nanofiber membrane is soaked in a solution containing nickel salt and 2-methylimidazole for in-situ growth of ZIF-8, meanwhile, adsorption of nickel can be promoted, and finally, high-temperature pyrolysis is conducted to obtain the nitrogen-doped carbon nanotube coated nickel nanoparticles (Ni-coated NCNT / HPNF) with the surfaces modified by hollow porous carbon nanofibers of a multilevel structure. Wherein the hollow porous carbon nanofiber is used as a'trunk ', the nitrogen-doped carbon nanotube is used as a'branch', and the nickel nanoparticles are embedded as a'fruit '. The hierarchical structure can enrich K < + > in the solution in the acidic electrolyte, so that side reaction hydrogen evolution can be inhibited, and the problem of salt deposition is also relieved.

An improved solar water distillation system which is effective for processing supersaturated brine commonly used in lithium mining comprising: a flushing system for controlling and substantially minimising cross-contamination of condensate stream(s) and salt deposits and / or treatment liquid, having a first flushing station integrated at a first location on a frame part of a solar still upstream from a treatment liquid separator, and including transfer means; wherein liquid from a liquid source is transferred to the first flushing station by the transfer means at a predetermined rate effective for dislodging and displacing solid salt deposits on the solar still.

The present application relates to the technical field of cooling tower, and particularly relates to a salt control and mist removal natural ventilation cooling tower and a working method thereof, which comprises a tower body, a water remover and a water collecting pool, the water remover is arranged above the inside of the tower body, the water collecting pool is arranged at the bottom of the tower body, a total cooling area is arranged below the inside of the tower body, the total cooling area is composed of staggered combination of wet cooling areas and dry cooling areas, the wet cooling areas and the dry cooling areas are used for changing the temperature and the humidity content of the flowing air, through cooperation of the dry cooling areas and the wet cooling areas, the mist can be removed, meanwhile, the salt-containing droplets can be evaporated in the flowing process, so that a large amount of salt deposition near the cooling tower can be avoided, the cooling of the circulating water by the dry cooling area does not cause evaporation loss, and water saving benefit is achieved.

The application discloses a solid potash salt mine development method, comprising the following steps: step 1, diverting surface runoff in a delineated mine area to lead the surface runoff from a source to an area far away from the potash salt mine area; step 2, after a new river channel is formed by the surface runoff diversion in step 1, performing geophysical exploration to determine an underground water enrichment area, arranging hydrological holes according to a specification, and determining parameters of the underground water; step 3, drilling at the edge of the mine area according to the parameters of the underground water obtained in step 2 to determine stratum distribution; and step 4, sealing various drill holes in a mining area in the mine area according to a specification, arranging grouting holes according to the water volume distribution of the hydrological holes, and performing grouting. The application eliminates water disasters of the solid potash salt mine from the source, and greatly reduces the geological disaster risks such as underground water leakage and collapse of a mine roof.

The invention relates to a salt deposition amount monitoring method, device and system. The method comprises the following steps: acquiring a salt deposition amount calibration value sequence determined based on a target environment in which a to-be-monitored object is located; according to the salt deposition rate calibration value sequence, performing calibration processing on the mapping relation among the relative humidity of the target environment, the impedance module value of the interdigital electrode and the salt deposition rate to obtain a relation curve cluster; the current fixed-frequency alternating-current impedance module value and the current relative humidity, collected by the interdigital electrode, of the target environment are obtained; and determining the current salt deposition amount matched with the current fixed-frequency alternating-current impedance module value and the current relative humidity according to the relation curve cluster. According to the scheme, the monitoring accuracy of the salt deposition amount is improved.

The application discloses an anti-salt deposition automatic solar evaporator which comprises a transparent condensing collector, a seawater bearing container, a transparent water collecting container, an anti-salt deposition device, a fresh water tank, a control module, a seawater storage container and a solar panel; the transparent condensing collector is connected with the transparent water collecting container in a butt joint mode; the condensing collector and the water collecting container have a containing space after being connected in the butt joint mode; the seawater bearing container and the anti-salt deposition device are arranged in the containing space; the anti-salt deposition device and the seawater bearing container are arranged from top to bottom; the bottom of the transparent water collecting container is provided with a water outlet hole; and the lower portion of the transparent water collecting container is provided with the fresh water tank; the anti-salt deposition device comprises a foam plate and a wood-based aerogel with a porous structure; the upper surface of the wood-based aerogel is coated with a light-absorbing material capable of being converted into heat by light; the wood-based aerogel is inlaid on the foam plate; and the seawater storage container is provided with the control module. The application has less surface salt deposition, better evaporation effect and high use efficiency.

The invention belongs to the technical field of power station boiler ash deposition treatment, and provides a power station boiler tail low-temperature heating surface ammonium salt ash deposition treatment method and system.The method comprises the steps that the load state and fire coal parameters of a power station boiler and ash deposition parameters and structural parameters of a tail low-temperature heating surface are determined; heating parameters are determined, the tail low-temperature heating surface is reheated, and ammonium salt deposited dust attached to the tail low-temperature heating surface is loosened through a pyrolytic reaction; soot blowing parameters are determined, the reheated tail low-temperature heating surface is subjected to soot blowing treatment, and loose ammonium salt deposited soot is purged and removed through airflow impact force; and according to the load state and the fire coal parameters, the slag chamber temperature and the fly ash liquid slag ratio of the power station boiler are determined, and high-alkali coal combustion ash deposition suppression treatment is conducted on the power station boiler. According to the scheme, the ammonium salt deposition treatment effect is improved, and the effectiveness of the ammonium salt deposition treatment link is improved while the energy consumption of ammonium salt deposition treatment is reduced.

The utility model discloses a rectangular tube inner wall high-salt sediment removal device in the technical field of rectangular tube inner wall cleaning, which comprises a liquid conveying main tube, a tube head cleaning component is mounted at one end of the liquid conveying main tube, the tube head cleaning component comprises a connecting base, a sediment removal part is arranged in the connecting base, and the sediment removal part comprises a supporting piece. According to the technical scheme, the tube head cleaning assembly is additionally arranged at one end of the liquid conveying main tube, high-salt sediments on the inner wall of the rectangular tube can be effectively removed through cooperative use of the deposit removing component and the inner wall scraping pieces, and the inner wall scraping pieces are arranged on the periphery of the outer wall of the supporting piece. The pipe head cleaning assembly comprises a connecting base and an accumulated matter removing component arranged in the connecting base, the accumulated matter removing component is supported through a supporting piece, a plurality of groups of inner wall scraping pieces distributed in a circumferential array mode are arranged on the outer wall of the supporting piece, and when the inner wall scraping pieces move on the inner wall of the pipeline, high-salt sediments attached to the inner wall can be scraped; and the pipeline is prevented from being damaged by corrosive substances.

The invention discloses a test device and method for simulating accelerated corrosion in a semi-closed area environment. The test device comprises a box body, a supporting frame, a semi-closed test bin, a salt mist spraying assembly, a heating assembly, a humidifying assembly, a control system and the like. The semi-closed test bin is made of ABS resin, polycarbonate, nylon, polyether-ether-ketone and other materials through 3D printing and is fixed in the box body through a supporting frame, the periphery of the test bin body is of an inverted-V-shaped louver-shaped structure, the height H of a triangle formed by louvers and the distance h between the louvers meet the condition that H / h is larger than or equal to 1 and smaller than or equal to 2, and the distance h between the louvers can be adjusted according to the salt deposition amount in the bin. The top is provided with a separable waterproof box cover, and the bottom is provided with a drainage groove. The test method comprises: (1) designing an acceleration test spectrum; (2) checking the state of the device and preparing a salt solution; (3) placing a semi-closed test bin; (4) placing the test piece in a semi-closed test bin, and carrying out an accelerated corrosion test according to an accelerated corrosion test spectrum; 5, taking out the test piece and analyzing the surface corrosion condition. According to the technical scheme, the semi-closed test bin is adopted to simulate the actual semi-closed condition, the accelerated test spectrum is designed according to the equivalent conversion of the natural environment spectrum of the actual environment, and the salt deposition amount in the bin is regulated by regulating the parameters of the louver structure, so that the accelerated corrosion simulation in the semi-closed environment is realized.

This invention discloses an ultrathin hydrophilic / hydrophobic ZnO-CuS@CC photothermal material, its preparation method, and its application, belonging to the field of photothermal evaporator technology. The ultrathin hydrophilic / hydrophobic ZnO-CuS@CC photothermal material includes a hydrophobic substrate, on the upper surface of which an ultrathin ZnO-CuS hydrophilic layer is grown. This ultrathin ZnO-CuS hydrophilic layer comprises CuS nanosheets and ZnO nanoparticles attached to the CuS nanosheets. The surface of the ultrathin ZnO-CuS hydrophilic layer forms numerous micropores and chambers. The presence of these micropores and chambers constructs light traps, while the ZnO nanoparticles reduce light reflection and increase light absorption. The photothermal evaporator prepared using this material can solve the technical problems of preventing salt deposition, effectively treating organic pollutants, and achieving high-efficiency evaporation in existing technologies.

The present application relates to a kind of corrosion and scale inhibitor for TRT and its preparation method, it is related to chemical reagent technical field, wherein, by mass percentage content, the corrosion and scale inhibitor includes: morpholine 15-20%, aminoethyl ethanolamine 25-30%, 1-hydroxyethyl-2-undecyl imidazolinium salt 15-20%, polyaspartic acid sodium 12-18%, itaconic acid-acrylic sulfonic acid copolymer 8-12%, alkyl glycoside 1-3%, the rest is the mixture of water and glycerol with mass ratio 1:1-3.It is synchronous to inhibit acid medium corrosion and NH4Cl and other salt deposits, effectively improve the corrosion rate and scale inhibition rate.

The present disclosure relates to a salt deposition amount monitoring method, device and system. The method comprises: obtaining a salt deposition amount calibration value sequence determined based on a target environment in which a to-be-monitored object is located; calibrating a mapping relationship between a relative humidity of the target environment, an impedance modulus value of an interdigital electrode and a salt deposition amount according to the salt deposition amount calibration value sequence to obtain a relationship curve cluster; obtaining a current constant-frequency AC impedance modulus value and a current relative humidity of the target environment collected by the interdigital electrode; and determining a current salt deposition amount matched with the current constant-frequency AC impedance modulus value and the current relative humidity according to the relationship curve cluster. The present scheme improves the accuracy of salt deposition amount monitoring.

The invention discloses a deposition salt density type proportion determination method, device and equipment in combination with atmospheric pollutant concentration and a storage medium, and belongs to the technical field of environmental monitoring. The method comprises the steps that the concentration of various atmospheric pollutants and the types of various metals in a to-be-detected area are obtained; forming an atmospheric pollutant-metal combination based on each atmospheric pollutant and each metal, and respectively obtaining a dirt deposition proportion coefficient of each combination in a preset database; on the basis of the concentration of each atmospheric pollutant and the pollution deposition proportionality coefficient, the pollution deposition rate of each combination is calculated; for each piece of metal, based on the placement time and the saturated equivalent salt deposit density of the metal and the multiple dirt deposition rates corresponding to the metal, the salt accumulation amount corresponding to each salt deposit of the metal is calculated, and then the deposit salt deposit density type proportion is calculated; and determining a metal corrosion sensitivity partition map of the to-be-detected region based on the deposition salt density type proportion of each metal. By implementing the method, the problem of low analysis accuracy of the deposited salt deposit density of the pollutants can be solved.

The utility model discloses a saline-alkaline water filtering device which comprises a pretreatment tank, and a filter screen, a quartz sand filtering layer and an activated carbon filtering layer are sequentially arranged in the pretreatment tank from top to bottom; the bottom end of the pretreatment tank is provided with a first pipeline, the first pipeline is connected with a middle water tank, and the middle water tank is provided with a stirring assembly used for stirring pretreated saline-alkaline water; the water outlet end of the middle water tank is connected with a reverse osmosis filter tank through a second pipeline, and a first booster pump is arranged on the second pipeline; a purified water outlet is formed in the bottom end of the reverse osmosis filter tank and is connected with a purified water tank through a third pipeline. According to the utility model, by arranging the pretreatment tank, the saline-alkaline water can be preliminarily pretreated through the pretreatment tank, the pretreated saline-alkaline water enters the middle water tank, the filtering efficiency of the saline-alkaline water can be improved through the stirring device of the middle water tank, and salt precipitation is avoided; and then the reverse osmosis filter tank is used for filtering the saline-alkaline water.

The utility model relates to sensor mounting support technical field especially adjustable protective mounting support of monitoring sensor, including fixed plate, fixed base, first fixed knob, first connecting seat, connect straight board, first mounting seat, second fixed knob, second connecting seat, right angle connecting plate, third connecting seat, second mounting seat, third fixed knob, mounting panel and protective cover, the utility model discloses adopt multi -shaft adjusting mechanism, support mounting support's 360 degree rotation and pitch angle adjustment, improve the convenience and flexibility of support adjustment operation, and through the double -layer structure design of protective cover, the inner and outer layer are stainless steel material, and fill aerogel heat insulation layer between the inner and outer layer, make the cover body have better salt mist corrosion prevention and heat insulation effect, and spray hydrophobic nano coating on the surface of the outer cover body, reduce the sea salt deposition, improve the reliability, and through the first sealing ring and second sealing ring that are equipped with in protective cover and mounting panel junction, realize double -layer sealing and reach better protection effect.

The invention relates to a device for quantitatively detecting salt deposits on a metal surface by means of laser-induced plasma spectroscopy. The invention also relates to a method for uniformly applying salts to a metal surface (13) or for producing a reference metal surface. The invention further relates to the use of laser-induced plasma spectroscopy for quantitatively detecting salt deposits on a metal surface and the use of a corresponding device for carrying out laser-induced plasma spectroscopy for quantitatively detecting salt deposits on a metal surface.

Film drum evaporator. The invention relates to the separation of liquid media by evaporation, applicable in liquid solution concentration and desalination plants. The evaporator comprises a cylindrical body with ends, a heated steam supply pipe, a secondary steam discharge pipe, and a condensate discharge pipe from the lower part of the body. The drum, partially filled with the solution to be evaporated, is mounted on bearing supports and equipped with a rotation drive. One pipe supplies the solution to be evaporated into the drum cavity, while another pipe discharges the concentrate from the bottom of the drum. A device located below the liquid level in the drum ensures continuous mechanical cleaning of salt deposits from the evaporation surface.To reduce metal consumption, the drum wall thickness is decreased by means of stiffening rings distributed along its entire length. Some of these rings serve as support bushings for a series of bearing supports, evenly distributing the load along the drum's length. This configuration increases drum productivity by reducing wall thickness while simultaneously increasing the drum's diameter and length with a limited number of bearing supports. The evaporator is designed for the separation of liquid media by evaporation in the nuclear, chemical, food, pharmaceutical, energy, oil, and gas industries, among others.

The invention provides a coastal external insulation ocean type salt pollution value prediction method, and relates to the technical field of coastal external insulation, and the method comprises the steps: obtaining environment feature data of a to-be-predicted place; carrying out numerical simulation on the particle size distribution and spatial distribution of the ocean salt mist along with the change of the offshore distance to obtain a data prediction model; substituting the environmental characteristic data into the data prediction model, and calculating the sea salt deposition rate and deposition rate of a preset threshold value from the coastal area to the coastal area; and inputting the environment characteristic data into the constructed calculation equation of the ocean type salt pollution value of the external insulation surface, and obtaining the ocean type salt pollution value of the external insulation surface in combination with the sea salt deposition amount and the deposition rate. Full-flow calculation of salt mist generation, transportation and deposition is driven through environmental characteristic parameters, a particle size distribution correction mechanism is introduced, and a deposition conversion model for correcting insulator salt dirt from the salt mist based on collision efficiency and resuspension is provided and is suitable for the distance gt between a to-be-predicted site and a coast; and predicting the marine salt pollution value of 1km.

The invention relates to methods for preparing aqueous solutions of mineral salts with a composition corresponding to that in equilibrium with solid rock minerals under the target conditions of the experiment. The technical result achieved by implementing the invention is to provide the possibility of obtaining a model of formation water with a composition closest to real formation water at target values of temperature and pressure, without the need for water sampling in the field. In accordance with the proposed method of preparation of the formation water model, a rock sample containing soluble hard skeleton minerals and / or salt deposits in the pore space, which was initially saturated with formation water and contains at least one area that has not been exposed to drilling fluid, is taken from the formation. The amount and composition of soluble sediments in the collected sample and the water saturation of the sample under reservoir conditions are determined. At least one internal region in the sample, not exposed to the drilling fluid, is selected and a three-dimensional digital model of the selected region is built, reflecting the pore structure and spatial arrangement of minerals. The water solubilization chemical reactions for all water-soluble minerals found in the sample are set. Numerical modeling of the initial saturation of the sample under study with water is carried out, taking into account the dissolution of minerals included in the sample at the required temperature and pressure until equilibrium is reached. The final ionic composition of the aqueous solution saturating the pore space of the numerical model after equilibrium is reached is determined, and the solution is prepared by dissolving the calculated amount of salts in the calculated amount of water while stirring. The resulting salt solution is brought to the required thermobaric conditions.

The invention discloses a hot salt corrosion fatigue test device and a test method, the hot salt corrosion fatigue test device comprises: a test bin for placing a sample and heating the sample; the weighing sensor is arranged in the test bin and is used for weighing the sample in real time so as to obtain the salt deposition mass ms on the surface of the sample in real time; the laser scattering sensor is arranged in the test bin and is used for measuring the salt mist particle number concentration Cp in real time; the salt mist generator is connected with the test bin through an air inlet pipeline and is used for supplying air containing salt mist to the test bin; the proportional pressure valve is arranged on the air inlet pipeline; the control system is used for adjusting the opening degree of the proportional pressure valve in real time according to the sample surface salt deposition mass ms, the salt mist particle number concentration Cp and the sample crack propagation state so as to dynamically adjust the salt mist concentration. According to the method, the test repeatability and the life prediction precision are improved, the salt deposition fluctuation is obviously reduced, the fatigue life dispersity is reduced, and the test accuracy is effectively improved.

This utility model discloses a desalination device for the top of a catalytic fractionation column, relating to the field of catalytic fractionation column technology. It includes a fractionation column body, a tray fixed to the inside of the column body, and a desalination assembly. The desalination assembly is used to inject water to wash the surface of the top tray. The assembly includes an external delivery pipe, a distribution pipe, and nozzles. The pipeline formed by the external delivery pipe, distribution pipe, and nozzles is used to flush away salt deposits on the upper surface of the tray. By setting up the desalination assembly, water is transported to the inside of the fractionation column body through the pipeline formed by the external delivery pipe, distribution pipe, and nozzles, and washes the upper surface of the top tray, causing the salt crystals on the top tray to be washed away and dissolved. Simultaneously, the inclined guide plate allows the washed-away salt crystals to be smoothly carried by the water flow to the downcomer channel, preventing salt crystals from remaining on the upper surface of the tray and clogging the channel.

The utility model discloses a solar evaporator capable of preventing salt deposition, which relates to the technical field of seawater desalination and comprises a support frame, a mounting base is fixedly connected above the support frame, the mounting base is obliquely arranged, and a high-level brine tank is fixedly connected above the right side of the mounting base. A sealing box is fixedly connected to the position, located on the inclined face, of the upper portion of the mounting base, a wavy photo-thermal conversion layer is fixedly connected to the bottom face in the sealing box, at least six flow guide pipes are fixedly connected to the position, located above the wavy photo-thermal conversion layer, in the sealing box, and a plurality of liquid outlet holes are formed in the bottoms of the flow guide pipes. The upper end of the flow guide pipe penetrates through the side wall of the sealing box and is connected with the high-position brine tank, wave crests and wave troughs are arranged on the wave-shaped photothermal conversion layer, and salt discharging gaps are formed in the positions, at the wave troughs, of the upper surface of the wave-shaped photothermal conversion layer. The device has the advantages that due to the inclined mounting base, salt can slide to the salt water discharging groove along the salt discharging gap by utilizing gravity, salt scale is prevented from blocking the photo-thermal absorption surface, and long-term efficient evaporation efficiency is maintained.

A real-time monitoring device for an amount of surface salt deposition comprises a host and a monitoring probe. The host generates a fixed frequency AC excitation signal and transmits it to the interdigital electrode inside the monitoring probe. And then the host analyzes a feedback signal to obtain an information of impedance value. The amount of salt deposition on the interdigital electrode surface is determined by a predetermined relationship curve between the amount of salt deposition and the impedance value, and the actual amount of salt deposition in the environment can be obtained. The monitoring device can change the relative humidity of the environment around the interdigital electrode by adjusting the temperature, so that the salt deposited on the surface of the interdigital electrode absorbs moisture and forms a liquid film, achieving real-time monitoring of the amount of salt deposition on the surface of the interdigital electrode.

The invention discloses an atmospheric corrosion grade prediction method and device, a storage medium and electronic equipment, and relates to the technical field of atmospheric corrosion. The method comprises the steps that environmental parameters of a meteorological environment where a component is located are obtained, and the environmental parameters comprise the air temperature, the temperature difference, the humidity, the precipitation amount, the solar radiation amount and the sulfur dioxide concentration; calculating the salt deposition amount of the meteorological environment based on the air temperature, the temperature difference and the precipitation amount; according to the air temperature and the humidity, the water vapor content in unit volume air in the meteorological environment is calculated; calculating a radiation intensity factor of the meteorological environment based on the air temperature and the solar radiation amount; calculating pollutant acceleration factors of the meteorological environment according to the sulfur dioxide concentration; based on the salt deposition amount, the water vapor content, the radiation intensity factor and the pollutant acceleration factor, determining a corrosion intensity factor of the meteorological environment; and determining the atmospheric corrosion level of the meteorological environment according to the corrosion strength factor. The problems of long corrosion level prediction period and high cost in the prior art can be solved.

The invention discloses a device and method for preventing salt deposition, scaling and blocking of a supercritical water system.The device comprises a reagent tank, a calcium and magnesium salt removal tank, a heater and a desalter which are sequentially connected, the output end of the reagent tank is connected with the calcium and magnesium salt removal tank through an N1 pipeline, the N1 pipeline is used for transporting hydroxyl ions and carbonate ions, and the N1 pipeline is connected with the heater. The output end of the calcium and magnesium salt removal tank is connected with the heater through a pipeline N4, the input end of the calcium and magnesium salt removal tank is connected with the cleaning tank through a pipeline N2, the cleaning tank is used for removing a deposited scale layer, and the reagent tank conveys hydroxyl ions and carbonate ions to the calcium and magnesium salt removal tank through the pipeline N1, so that calcium and magnesium salts in water are effectively removed, the hardness of the water is reduced, and the service life of the water is prolonged. Chemical removal, heating control and cleaning are combined, so that the shutdown frequency and the maintenance workload caused by scaling or salting-out can be obviously reduced, pipeline and reactor blockage caused by salt deposition is effectively prevented, and the working efficiency and the stability are improved.