1199 results about "Liquid water" patented technology

A gas turbine engine for an aircraft includes a fan and a turbo-engine having a combustor that combusts compressed air and fuel to generate combustion gases and a power turbine coupled to a shaft for driving the fan. The gas turbine engine includes a direct contact condenser for condensing steam in a first flow into liquid water droplets and to generate a second flow including the liquid water droplets, a water tank for collecting the liquid water droplets of the second flow, and a water pump for introducing the liquid water droplets from the water tank into the direct contact condenser to act as condensation nuclei for the steam in the first flow. The first flow is an exhaust-vapor flow extracted from the combustion gases and the second flow is an exhaust-condensate flow from the direct contact condenser.

The invention relates to the technical field of fuel cells, in particular to a hydrogen cell water-gas separation device for an unmanned aerial vehicle, which comprises a separation shell, and a cyclone separation cavity, a heat exchange condensation cavity and a hydrogen mixing cavity which are sequentially distributed from bottom to top are arranged in the separation shell. The technical problem that a traditional gas-liquid separator cannot thoroughly remove micron-sized liquid drops is solved, liquid water drops are efficiently removed through the cyclone separation cavity, new hydrogen and wet hydrogen are subjected to heat exchange through the heat exchange condensation cavity, residual liquid drops are sufficiently condensed and separated out, and finally mixed hydrogen with the dryness meeting the requirement is output. And the anode flooding problem of the fuel cell is effectively avoided.

The utility model discloses a backflow type icing wind tunnel capable of simulating a sand-containing ice crystal-containing environment, which belongs to the technical field of wind tunnels and comprises a wind tunnel body, a liquid particulate matter injection system, a solid particulate matter injection system, a phase change particulate matter injection system, a temperature control system, a pressure control system and a plurality of power systems. The wind tunnel body is sequentially provided with a stable section, a contraction section, a test section, a first expansion section and a second expansion section, and the liquid particulate matter injection system and the solid particulate matter injection system are both installed on the stable section. According to the backflow type icing wind tunnel capable of simulating the sand-containing and ice-crystal-containing environment, the content of sand and dust, the content of ice crystals and the content of liquid water in the wind tunnel body can be adjusted, and the temperature in the wind tunnel body can be adjusted, so that more complex weather can be simulated in the wind tunnel body, the accuracy of experimental data is ensured, and the experimental efficiency is improved. Therefore, the reliability and the safety of the aircraft in an extreme environment are improved, and the test efficiency is improved.

Provided herein are water harvesting systems, as well as methods using such systems, for capturing water from surrounding air. The systems and methods use water capture materials to adsorb water from the air. For example, the water capture materials may be metal-organic-frameworks. The systems and methods desorb this water in the form of water vapor, and the water vapor is condensed into liquid water and collected. The liquid water is suitable for use as drinking water.

The invention discloses a wafer bonding method, which comprises the following steps of: 1, providing a first wafer and a second wafer, the surface of the first wafer being provided with a microstructure with a high aspect ratio; step 2, cleaning the first wafer and the second wafer; step 3, performing vacuum drying treatment on the first wafer and the second wafer, wherein the vacuum pressure is controlled to be 0.1-10 Torr in the vacuum drying treatment process; step 4, carrying out pre-bonding on the first wafer and the second wafer to form a bonding body; and step 5, carrying out annealing treatment on the bonding body. Aiming at the problem of residual water in the pre-cleaning process in the bonding process of the micro-structure wafer with a high aspect ratio, the wafer is placed in a controllable vacuum environment, phase change boiling of liquid water under the condition of no heat input is realized, and the problem of high-temperature heat damage caused by an existing heating and baking method is effectively avoided.

The invention relates to a water separator (10) for a fuel cell system, comprising a separation device (20) for separating liquid water (W) from a gas flow (G), a water collection region (36) in which the liquid water (W) separated from the gas flow (G) by the separation device (20) collects, and a discharge line (28) for discharging the water (W) located in the water collection region (36), wherein the discharge line (28) has an inlet opening (34) located in the water collection region (36).

The invention relates to a dust falling device. The dust falling device comprises a movable water tank and a spraying assembly; a water pump is mounted at the inner top end of the movable water tank, a water inlet pipe of the water pump is inserted into the liquid water, and a water outlet pipe of the water pump extends out of the movable water tank; the spraying assembly comprises a rotary spraying unit and a driving unit, the extending end of a water outlet pipe of the water pump is connected with the bottom end of the rotary spraying unit through a connecting assembly, the rotary spraying unit can rotate relative to the water outlet pipe, one end of the driving unit is connected with the rotary spraying unit, and the other end of the driving unit is connected with the connecting assembly; the driving unit is used for driving the rotary spraying unit to rotate; and by arranging the rotary spraying unit, the rotary spraying unit rotates during spraying, the spraying range is enlarged, and the dust falling efficiency is improved.

The invention discloses a bubble initial temperature calculation method of an oil paper system and a related device, and the method comprises the steps: collecting operation state parameters of an in-service transformer during operation, carrying out the molecular simulation calculation according to the operation state parameters, and obtaining the micro-water aggregation rate of water molecules on an oil paper interface of an insulating oil paper system; guiding the flow rate of liquid water in the oil-paper system finite element model entering the insulation paper finite element model through the micro-water aggregation rate, and calculating the bubble initial temperature of the oil-paper system through the oil-paper system finite element model. The technical problems of low measurement efficiency and large measurement result error in the prior art are solved.

An ice maker appliance includes a mold body comprising a mold cavity, a fill tube, and a dosing pump. Methods of operating the ice maker appliance may include receiving a user input. A volume of liquid water and / or a volume of additive may be determined based on the user input. Methods may further include flowing the liquid water and the additive to the mold cavity. The liquid water and the additive form a mixture, and the mixture is retained in the mold cavity to form at least a portion of an ice piece.

The invention discloses a cloud phase fine identification and liquid water and ice water quantitative remote sensing device, which comprises a split-phase cloud water quantitative detection laser radar, a novel temperature and humidity remote sensing system and a millimeter wave cloud radar, and is composed of a laser emission module, a telescope receiving module, a microwave radiation module, three laser radar detection modules and a digital signal processing module. The system is composed of a central control processing module and a terminal server. The invention further discloses a remote sensing method of the quantitative remote sensing device. All-day detection and quantitative inversion of liquid water, ice water, water vapor, aerosol and cloud are achieved through the split-phase cloud water quantitative detection laser radar. A novel temperature and humidity remote sensing system is adopted to realize real-time fine detection of a temperature and humidity profile in the cloud. According to the cloud phase state fine identification and liquid water and ice water quantitative remote sensing device and method provided by the invention, the problems that the quantitative detection precision of the liquid water and ice water content in the cloud is insufficient and the mixed phase cloud identification is difficult in the prior art are solved.

The invention belongs to the technical field of cable branch boxes, and discloses a moistureproof dehumidification branch box used in the field, which comprises a box body, a waterproof platform is fixedly connected to the bottom of the box body, a box door is hinged to the side wall of the box body, mounting frames are fixedly connected to the inner cavity of the box body in the transverse direction and the vertical direction, a canopy is arranged above the box body, and the inner cavity of the box body is fixedly connected with the mounting frames in the transverse direction and the vertical direction. Through cooperation of structures such as a T-shaped pipe, a cross-shaped pipe and a gas collecting pipe, the freezing phenomenon is avoided, it is ensured that the dehumidification and heat dissipation functions are stable, a double-pipeline channel is arranged, the T-shaped pipe and the cross-shaped pipe form a heat path pipeline which is installed near an electrical element to suck hot air of one hand, and the gas collecting pipe and a second gas inlet which is obliquely arranged form a cold path pipeline, so that the heat dissipation function of the electrical element is improved. Air in the bottom area, with the highest humidity, of the box wall is sucked, the T-shaped pipe and the cross-shaped pipe are driven by field natural wind power to move up and down in a reciprocating mode, the cold air suction range and the hot air suction range are widened, finally condensation is generated in a concentrated mode, liquid water is discharged, and efficient dehumidification is achieved.

The invention relates to the technical field of scabbling equipment, in particular to scabbling treatment equipment which comprises a scabbling machine body, a plurality of hydraulic rods are arranged at the bottom of the scabbling machine body, and impact drill bits used for scabbling are arranged at the bottom ends of the hydraulic rods. The piston plate is driven to generate compressed air, the compressed air is discharged into the water tank under communication of the air guide pipe, then liquid water in the water tank is extruded to be discharged through the flow guide pipe, the dust falling effect on dust generated in the impact process is achieved, and meanwhile the dust in the air is extracted to enter the cavity of the dust collection box to be collected. And finally, the double effects of spraying water to fall dust and absorbing dust are achieved through the chiseling action of the chiseling machine, chiseling and dust removal are conducted synchronously, the efficiency is improved, meanwhile, the drifting speed and concentration after dust is generated are greatly reduced, and then harm to the respiratory tract of the human body caused by drifting of a large amount of dust in the chiseling process is relieved.

Doubly labeled water with enhanced protocol. One embodiment is a method including providing, to a user, a doubly labeled water (DLW) dose for the user to ingest, the DLW dose including deuterium and oxygen-18, wherein an amount of the deuterium is less than 0.12 grams per kilogram (g / kg) of body water of the user, and wherein an amount of the oxygen-18 is less than 0.18 g / kg of body water of the user. The method also includes receiving, from the user, a non-cooled shipment of urine samples collected in connection with ingestion of the DLW dose, wherein the urine samples remain uncooled after collection and during transit for a period of up to 24 days. The method further includes processing the urine samples with a liquid water isotope analyzer to determine one or more metabolic parameters of the user.

The invention discloses a fuel cell water and gas discharge control method, device and equipment and a readable storage medium, and the method comprises the steps: presetting a first calibration quantity and a second calibration quantity of periods and opening durations of a water discharge valve and a gas discharge valve, and enabling the second calibration quantity to have a shorter period and a longer water and gas discharge duration; when it is monitored that the idle running time of the fuel cell system exceeds the first threshold value, the control parameters of the drain valve and the exhaust valve are switched from the first calibration quantity to the second calibration quantity, and the control parameters are switched back to the first calibration quantity after the set time is continued, so that the working condition that the circulating gas flow is reduced under long-time idle running is adapted; liquid water and accumulated gas in the galvanic pile are effectively discharged by adjusting the period and duration of drainage and exhaust; the problems of liquid water gathering, circulating flow attenuation, local water logging of the electric pile, local film drying, unbalanced gas concentration and the like caused by traditional fixed parameter control during long-time idling operation can be avoided, the voltage consistency of the electric pile is guaranteed, and the fault that the voltage of a single piece is too low is reduced.

The invention discloses an offshore floating type low-altitude waveguide all-weather detection method and system, and relates to the technical field of marine environment monitoring and electronic information engineering.The method comprises the steps that the current weather condition is judged according to a rain intensity sensor, a miniature weather station, a visibility sensor and an infrared cloud measurement sensor; obtaining a temperature and humidity value range according to the current weather condition, and adding liquid water for correction according to the weather condition; a simulated brightness temperature is obtained according to a MonoRTM model by combining an air pressure profile constructed by sea surface air pressure and a pressure height formula; designing a multi-objective genetic inversion algorithm, constructing an objective function, and when the objective function obtains a minimum value, obtaining an inverted atmospheric parameter profile group; and according to the atmospheric parameter profile group, calculating an atmospheric refractive index profile, judging whether a low-altitude waveguide occurs or not, and uploading a result to a shore station data management center. According to the invention, the atmospheric absorption coefficient is corrected according to different weathers, and all-weather and high-precision monitoring of the low-altitude waveguide on the offshore floating platform is realized.

The invention discloses a porous material embedded micro-channel structure polar plate suitable for a fuel cell, and belongs to the technical field of fuel cells. The porous material embedded micro-channel structure polar plate suitable for the fuel cell is provided with a flow field groove, a porous flow field is arranged in the flow field groove, the porous flow field is a porous material with a continuous pore structure, and a micro-channel forming a gas transmission path is processed on the surface of the porous material. The continuous pore structure of the porous material forms a liquid water transmission path under the action of capillary force, so that the uniformity of gas distribution in a flow field is improved, meanwhile, water accumulation possibly occurring in a traditional flow channel is effectively avoided, the thickness and the volume of the fuel cell are greatly reduced, the power density can be greatly improved, and the service life of the fuel cell is prolonged. The electron transverse transmission distance is effectively shortened, and the ohmic loss is reduced.

The invention relates to the technical field of fuel cells, in particular to a hydrogen feeding amount control method of a hydrogen cell water-gas separation device for an unmanned aerial vehicle, a cyclone separation cavity, a heat exchange condensation cavity and a hydrogen mixing cavity which are sequentially distributed from bottom to top are arranged in a separation shell, and a structure combining multi-stage separation and heat exchange is adopted; the technical problem that a traditional gas-liquid separator cannot thoroughly remove micron-sized liquid drops and gaseous water vapor is solved, liquid water drops are efficiently removed through the cyclone separation cavity, new hydrogen and wet hydrogen are subjected to heat exchange through the heat exchange condensation cavity, residual water vapor is sufficiently condensed and separated out, and finally mixed hydrogen with the dryness meeting the requirement is output. When water in the water-gas separation device for the hydrogen battery is excessive, the opening degree of the first valve of the wet hydrogen inlet is reduced, and the opening degree of the second valve of the new hydrogen inlet is increased at the same time, so that the amount of water entering wet hydrogen in the gas-liquid separator is reduced, and formation of condensed accumulated water in the gas-liquid separator is inhibited.

The invention discloses an icing wind tunnel cloud spray nozzle design method, device and equipment and a medium, and the method comprises the steps: S1, preliminarily determining the layout of a spray rake and the number of spray nozzles according to the section size of the position of the spray rake in an icing wind tunnel; s2, according to existing super-cooled large water drop frozen hairy rain conditions, the cloud and mist requirements are determined; s3, according to the liquid water content LWC and the speed requirement of the wind tunnel test section, the nozzle water supply demand quantity and the single-nozzle water supply demand quantity are analyzed; s4, preliminarily designing a nozzle combination mode of the spraying system according to the water supply flow and the water supply parameters; s5, performing analog simulation of cloud-air bidirectional coupling heat transfer in the icing wind tunnel on the nozzle combination mode; and S6, analyzing a simulation result, evaluating whether the particle size requirement of the frozen hairy rain cloud is met, if so, completing the cloud nozzle design, and if not, returning to the step S4, optimizing the distance and combination of the nozzles, and carrying out iterative design. According to the method, the design iteration period is shortened, and the test cost is reduced.

The utility model relates to the technical field of gas-liquid separation, and discloses a gas-liquid separation system of electrolytic bath test equipment, which comprises a first-stage gas-liquid separation tank, an injection port is fixedly connected to the outer wall of the first-stage gas-liquid separation tank, a second-stage gas-liquid separation tank is arranged on the outer wall of the first-stage gas-liquid separation tank, and the injection port is fixedly connected to the injection port. A gas exhaust port is formed in the top of the second-stage gas-liquid separation tank, a drain valve is arranged at the bottom of the second-stage gas-liquid separation tank, the drain valve is provided with a drainage assembly, and the drainage assembly is used for discharging liquid water in the second-stage gas-liquid separation tank. According to the gas-liquid separation system, liquid enters the drainage system through the steam trap after passing through the gas-liquid separation tank, gas upwards passes through the gas exhaust port, and generated hydrogen and oxygen are subjected to gas cooling and water separation treatment through the first-stage gas-liquid separation system and the second-stage gas-liquid separation system of the system, so that the problem that the water content of a gas source is relatively high is solved, and the flow measurement precision is improved.

The invention belongs to the field of foundation engineering construction, and provides a building foundation engineering construction method which comprises the following steps: S1, geological improvement, cushion construction and expansive soil treatment; s2, prefabricated foundation components are assembled; s3, intelligent reinforcement cage construction; s4, concrete pouring and curing; and S5, performing quality verification and data archiving. The lime and coal ash mixed curing layer is adopted to inhibit ion exchange expansion, the expansion coefficient of expansive soil is reduced, liquid water permeation is blocked through the breathable film, gaseous water diffusion is allowed, damage to a film body caused by air pressure is reduced, temperature rise and deformation data are fed back in real time through the sensor network embedded in the reinforcement cage, pouring parameters are dynamically adjusted, and the construction quality is improved. A point cloud model is generated through three-dimensional laser scanning, an acceptance report is generated by comparing with BIM design deviation, manual measurement is replaced, the acceptance efficiency is higher, and whole-process intelligent monitoring can be achieved.

The invention relates to a centrifugal filtration device for solid-liquid mixed liquor. The filtering device comprises a rack, a liquid inlet channel and a filter, the filter is provided with a filter cartridge capable of rotating around a supporting structure, a collecting shell and a backwashing nozzle are arranged outside the filter cartridge, and a residue receiving container and a residue discharging channel are arranged inside the filter cartridge. Waste liquid is injected into the filter cartridge through the liquid spraying pipe, the filter cartridge rotates to generate centrifugal force, the liquid and fine particles are pushed to be thrown out, separated through the filter screen and collected to the clean liquid water tank, and large particle impurities are attached to the filter screen, removed through the back-flushing spraying head and finally guided out through the residue receiving container and the residue discharging channel. And the discharged impurity mixture flow is further subjected to liquid separation through a two-stage vibrating screen and is subjected to reflux treatment, and solid residues are collected in a centralized manner.

The invention belongs to the related technical field of steam turbine water corrosion prevention, and discloses a steam turbine movable blade additional liquid film water corrosion prevention structure, a steam turbine and a design method of the steam turbine movable blade additional liquid film water corrosion prevention structure, and the steam turbine movable blade water corrosion prevention structure comprises a movable blade conveying channel and a nozzle seam which are arranged on a movable blade; the movable blade conveying channel extends from the blade root to the blade top in the movable blade, the multiple nozzle seams are formed in the windward side of the movable blade and connected with the movable blade conveying channel, and the movable blade conveying channel is used for conveying liquid water from the blade root. And liquid water is conveyed to the nozzle seam to be sprayed out under the centrifugal force effect of the movable blade, so that a liquid film is formed on the windward side surface of the movable blade, and the water corrosion prevention effect is achieved. A layer of liquid film can be actively formed on the surface of the windward side of the movable blade to buffer high-speed liquid drop impact, an active liquid film protection technology is formed, a traditional passive defense technology is improved and innovated, and the defects of passive defense are overcome.

The utility model belongs to the technical field of tire vulcanization equipment, and discloses a nitrogen heating system and tire vulcanization equipment. The nitrogen heating system can inject heated nitrogen into a capsule of the tire vulcanization equipment, so that the capsule is expanded, and the tire blank is attached to a cavity of a mold of the tire vulcanization equipment. According to the nitrogen heating system provided by the utility model, the temperature and the pressure in the vulcanization process can be independently adjusted according to the rubber crosslinking dynamics requirement and the tire blank fitting pressure requirement respectively, and the risk of over-vulcanization or under-vulcanization caused by passive change of the temperature when the pressure is adjusted in the traditional process is avoided. In addition, the defects of energy loss and local low temperature caused by the fact that steam is in contact with the surface of a low-temperature mold and condensed into liquid water in a traditional process are overcome, so that the vulcanization uniformity can be improved, and the defective rate is reduced.

The utility model relates to the technical field of batteries, and particularly discloses a pressure relief structure, a battery pack and an energy storage power supply. The pressure relief structure comprises a shell and an anti-explosion valve, the shell is provided with a containing cavity, and the anti-explosion valve is installed on the shell. The shell is provided with an opening communicated with the containing cavity, the anti-explosion valve comprises a rubber cover part, the rubber cover part seals the opening, and the rubber cover part is configured to be at least partially separated from the shell to expose the opening when the air pressure in the containing cavity reaches the preset pressure intensity. According to the pressure relief structure, when the battery cell works normally, the rubber cover part seals the opening to prevent the accommodating cavity from being communicated with the outside of the battery pack, so that vaporous water and liquid water in the external environment are prevented from entering the accommodating cavity. And when the air pressure in the accommodating cavity reaches the preset pressure intensity, the rubber cover part is at least partially separated from the shell to expose the opening, so that the gas in the accommodating cavity is continuously discharged to the outside through the opening at the first time, the risk of battery pack explosion caused by thermal runaway of the battery core is reduced, and the safety of the battery pack is improved.

The invention belongs to the technical field of meteorological early warning, and discloses a hail reduction forecasting and early warning method and system based on meteorological radar data in order to solve the problem that a traditional hail reduction early warning system is low in accuracy. Determining vertical accumulated liquid water between the adjacent target temperature layers, and calculating the content of supercooled water between the adjacent target temperature layers according to the vertical accumulated liquid water; then, according to the number of the aqueous product particle libraries and the content of the supercooled water, the interaction rate of the supercooled water and the aqueous product particles between the adjacent target temperature layers is determined; then, according to each interaction rate, a hail reduction index is calculated, and hail reduction early warning is carried out according to the hail reduction index; therefore, hail reduction early warning is carried out by analyzing the interaction between the supercooled water and the water particles in the hail violence process, the evolution dynamic state of the supercooled water and the water particles in the hail violence process is revealed, and on the basis, the accuracy of hail reduction early warning is improved.

The invention relates to a humidity control method, device and system for a fuel cell stack, and relates to the field of fuel cells. The method comprises the steps that when water quantity information of a water storage tank in a humidifying loop of the fuel cell stack reaches a first preset threshold value, the intake air moisture content of an air inlet loop of the fuel cell stack is obtained, and the water storage tank is used for collecting liquid water generated by the fuel cell stack and used for humidifying. According to the intake air moisture content and a preset target intake air moisture content, the water outlet flow of a water storage tank used for humidifying the fuel cell stack in the humidifying loop is determined, and according to the water outlet flow, the humidifying loop is controlled to provide liquid water for the air inlet loop, so that an intercooler in the air inlet loop can supply the liquid water to the air inlet loop based on heat absorbed by cooling the air inlet loop. And / or the liquid water is heated and evaporated through a heater, so that humidification is carried out when air is supplied to the air inlet loop. Through the method, a proper humidity condition can be provided for the fuel cell stack at low cost.

A method for reducing a preferred orientation of particles in a cryo-sample includes receiving the cryo-sample in a vacuum chamber, depositing amorphous ice onto the cryo-sample while the cryo-sample is in the vacuum chamber, delivering an energy pulse to the cryo-sample in the vacuum chamber to temporarily melt the amorphous ice on the cryo-sample to liquid water to promote movement of the particles in the cryo-sample to a changed orientation different from the preferred orientation, and allowing the liquid water to revitrify to amorphous ice upon cessation of the energy pulse to fix or trap the particles in the cryo-sample in the changed orientation.

The invention provides a building crack detection device and method, and belongs to the technical field of building crack detection. Comprising a left movable cover and a metal base, a right positioning base is fixedly installed at the top of the metal base, a bottom supporting strip is fixedly installed at the bottom of the left movable cover, clamping grooves are formed in the two sides of the front end of the bottom supporting strip and the two sides of the front end of the left movable cover, and a clamping frame is fixedly installed on the front end wall of the right positioning base. Mechanical structures such as the cleaning assembly, the drainage assembly and the driving motor are arranged to drive a brush to clean obstacles such as algae in a reciprocating mode, meanwhile, liquid water discharged by a turbine is used for flushing and washing falling objects, then the drainage assembly discharges the obstacles according to the Bernoulli principle, and a three-way valve can discharge water in a detection area after being connected with high-pressure gas. During detection, after the device is lowered, shelters are cleaned and impurities are discharged, the laser detector scans the width, the depth and the like of the crack, the problems of manual subjective operation, shelters and water interference are solved, and the detection precision and standardization are improved.

The embodiment of the invention provides a method and device for obtaining the humidity of fabric in a fabric treatment appliance, and the method comprises the following steps: during the drying operation period of the fabric treatment appliance, obtaining the humidity of the fabric; acquiring an air temperature parameter of the fabric treatment appliance related to air circulating in the fabric treatment appliance during the drying operation and a drainage characteristic parameter related to liquid water separated from the fabric in the fabric treatment appliance through the drying operation; a humidity of the fabric in the fabric treatment appliance is determined based at least on the air temperature parameter and the drainage characteristic parameter. The application also relates to a fabric treatment appliance and a computer program product. According to the method and the device, the real-time humidity of the fabric can be determined without being influenced by the accumulation form and humidity distribution of the fabric, so that the measurement accuracy of the humidity of the fabric is improved, and a humidity sensor with high cost and limited measurement conditions is prevented from being used; therefore, the technical purpose of accurately obtaining the humidity of the fabric in the fabric treatment appliance at low cost is achieved.

The invention discloses a potassium-rich liquid decalcification method based on a titanate ion sieve, and relates to the technical field of high-salinity water body ion removal, and the removal method comprises the following steps: adding the titanate ion sieve into a potassium-rich liquid water body as an adsorbent under a constant temperature condition, oscillating the potassium-rich liquid added with the adsorbent for a certain period of time, and removing calcium ions in the potassium-rich liquid; calcium ions in a potassium-rich liquid system can be remarkably removed, and then the titanate ion sieve is put into a NaCl solution for elution, so that elution of the calcium ions in the titanate ion sieve is realized. By constructing an efficient decalcification system, efficient removal of calcium ions in the potassium-rich liquid is achieved, meanwhile, cyclic utilization of ionic titanate is achieved, high adsorption capacity can still be kept in multiple cyclic adsorption-desorption cycles, the economic benefits of potassium salt extraction are improved, and the method can meet the actual requirements of industrial production.