171 results about "Krypton" patented technology

The invention relates to an air pre-impurity-removal control method and system for enrichment and separation of Kr, and relates to the technical field of gas separation and purification, and the air pre-impurity-removal control method comprises the following steps: removing impurity components in air through an impurity removal device to obtain air subjected to impurity removal treatment; carrying out multi-stage enrichment and separation treatment on the air subjected to impurity removal treatment to obtain enriched Kr gas; and introducing the enriched Kr gas into a chromatographic separation device, and separating krypton from other inert gases to obtain a target krypton component. The problems that in the traditional Kr enrichment and separation process, due to the fact that air impurities are prone to icing, the device is blocked, the multi-stage separation parameter adaptability is poor, and the enrichment efficiency is low are solved, and through pre-impurity removal of intelligent parameter configuration and multi-stage enrichment of gradient temperature control, the Kr separation stability, the enrichment efficiency and the target component purity are improved.

The invention relates to a Kr separation method and system based on selective desorption, a terminal and a storage medium, and relates to the technical field of rare gas purification. Calculating the difference between the quotient of the historical krypton loss amount and the adsorption column mass and the initial unit krypton adsorption amount to generate the actual unit krypton adsorption amount; calculating the quotient between the product of the actual unit krypton adsorption quantity and the mass of the adsorption column and the flow velocity of the single to-be-adsorbed air so as to generate actual adsorption time; controlling the first-stage adsorption column to adsorb the to-be-adsorbed air according to the actual adsorption time so as to generate a to-be-separated adsorption column; controlling the adsorption column cleaning device to clean the adsorption column to be separated according to the actual unit krypton adsorption quantity, and collecting desorbed gas after cleaning to the waste gas storage device; and performing desorption operation on the cleaned adsorption column, controlling a gas collection device to collect desorbed gas, and heating and activating the first-stage adsorption column to recover the adsorption capacity. The application has the effect of reducing krypton loss.

The transparent conducting film comprises a base material layer, a first resin layer, a base layer and a composite conducting layer which are sequentially arranged in a stacked mode, and the composite conducting layer comprises a first ITO conducting layer and a second ITO conducting layer arranged on the face, away from the base layer, of the first ITO conducting layer. The mass ratio of indium oxide to tin oxide in the raw material indium tin oxide of the first ITO conducting layer is 90: 10, and the mass ratio of indium oxide to tin oxide in the raw material indium tin oxide of the second ITO conducting layer is 93: 7; the first ITO conducting layer and the second ITO conducting layer are both prepared through a magnetron sputtering process, the bombardment gas during magnetron sputtering is krypton, and the direct-current sputtering voltage is 350-400 v. The transparent conductive film provided by the invention has good conductivity and light transmission, and is low in cost.

The invention discloses a multi-band enhanced infrared optical comb spectrum rare gas detection system in a hollow cavity of building glass, which is characterized in that a line scanning optical frequency comb light source module and a reflective array module jointly form a virtual enhanced cavity to enhance the optical path of an emitted fan-shaped optical comb light beam so as to improve the detection precision; rapid switching of multi-band gas is achieved through an electric filter wheel according to sequential control so as to detect different gases, gas data in a hollow cavity are collected in real time by combining the high-speed collection capacity of a dual-band area array detection module, and a concentration distribution cloud chart of argon and krypton is rapidly constructed based on a data terminal processing module; the detection efficiency and accuracy of the gas in the glass hollow cavity are greatly improved, the synchronous operation of space scanning and wave band switching is realized, and multi-dimensional data of the concentration, the position and the impurity content of multiple gases can be measured and obtained at a time; a polarization filtering function and a temperature field compensation algorithm are integrated, and the detection precision under outdoor strong light and temperature difference environments is ensured.

The invention discloses a metal organic framework material composite membrane as well as a preparation method and application thereof. The metal organic framework material composite membrane provided by the invention comprises a substrate, a hydrophilic layer, an adsorption layer and a fixing layer which are sequentially stacked, the fixing layer covers the surface of the adsorption layer and is connected with the hydrophilic layer; the adsorption layer contains a carbonized metal organic framework material, and the fixing layer contains a hydrophilic polymer. The carbonized metal organic framework material is used as the adsorption layer, and the material has a rich mesoporous structure and a high specific surface area, so that the adsorption activity of the composite membrane is improved; the hydrophilic layer is matched with the fixing layer, so that the adsorption layer can be simply, efficiently and firmly fixed in the membrane material, the composite membrane with good adsorption performance, high mechanical performance and good stability is formed, and the composite membrane has a good application prospect in gas adsorption and enrichment, especially in krypton and / or xenon adsorption and enrichment.

The utility model discloses a pipeline anti-freezing and anti-blocking device for a device for obtaining high-purity krypton and xenon gas from liquid oxygen, and belongs to the technical field of gas purification. The anti-freezing and anti-blocking device comprises an electric tracing band, two groups of fixing frames and two groups of fixing mechanisms. The electric tracing band is wound and attached to the periphery of the pipeline through the aluminum foil band, when production is finished or paused, the pipeline is heated through the electric tracing band, and the phenomenon that the interior of the pipeline is frozen and blocked when flow is low is prevented. The two fixing frames are detachably and fixedly arranged at the two ends of the pipeline. The fixing mechanisms are detachably and oppositely installed between the two sets of fixing frames, and the fixing mechanisms are used for fixing the electric tracing band between the two sets of fixing frames, so that the electric tracing band does not loosen or fall off in the using process, and the optimal heating effect is achieved.

The invention provides application of a silver modified AFX molecular sieve in xenon and krypton gas separation, and belongs to the technical field of gas separation. According to the invention, silver ions with electronegativity are introduced into AFX molecular sieve pores through ion exchange, selective adsorption of xenon is realized through the AFX topological molecular sieve subjected to Ag exchange so as to enrich xenon, and excellent separation of xenon and krypton is finally realized. The xenon and krypton adsorption isotherm of the silver modified AFX molecular sieve under the condition of 25 DEG C is tested, and the IAST (ideal adsorption solution theoretical value) of the molecular sieve is analyzed to be 36.5 through a static adsorption curve; according to the method disclosed by the invention, a dynamic penetration test is carried out under trace Xe and Kr concentrations by simulating the waste gas subjected to UNF post-treatment, and the dynamic capacity of Xe is calculated to be 104 mmol kg <-1 >, which is superior to that of other reported materials.

The invention relates to the technical field of krypton and xenon purification, in particular to a device for low-temperature rectification and concentration of krypton and xenon. Comprising a cooling compression tower, a rectifying tower and a purifying tower, mixed gas containing krypton and xenon is cooled and compressed by the cooling compression tower and poured into the rectifying tower, and then nitrogen and oxygen are separated out by the rectifying tower and then flow into the purifying tower; the purifying tower comprises a tower body and a tower base at the bottom of the tower body; an upper baffle plate and a lower baffle plate are arranged in the tower body; a first air outlet groove is formed in the upper baffle disc in an up-down penetrating manner; a first air inlet groove corresponding to the first air outlet groove is formed in the lower baffle disc in an up-down penetrating manner; according to the purification tower disclosed by the invention, the molecular sieves in the separation cavities are driven to rotate between the upper baffle disc and the lower baffle disc through the rotation of the plurality of separation plates, so that the plurality of separation cavities are sequentially communicated with the first gas outlet groove, the blocked molecular sieves can be smoothly replaced, the purification effect of the purification tower on krypton-xenon gas is ensured, and the purity of the krypton-xenon gas is higher.

The invention belongs to the technical field of sewage treatment, and relates to a method for degrading organic pollutants in a water body by efficiently activating peroxydisulfate. The method comprises the following steps: S1, adjusting the pH value of a to-be-treated water body containing target pollutants to 7-8; and S2, adding peroxydisulfate into the reaction water body, uniformly stirring, reacting at the ultraviolet wavelength of 220-230nm, and efficiently activating the peroxydisulfate by using ultraviolet light radiated by a krypton chloride excimer lamp to generate high-concentration hydroxyl free radicals (HO.) and sulfate free radicals # imgabs0 # with strong oxidizing property so as to realize efficient degradation of organic pollutants. Compared with the prior art, the method has the advantages that organic pollutants in sewage can be efficiently degraded, the stability is good, the dosage of the required oxidizing agent peroxydisulfate is small, the energy consumption is low, and the method has good degradation performance and economic advantages.

The invention discloses a liquid nitrogen cold supply energy-saving device for krypton and xenon separation and purification. The liquid nitrogen cold supply energy-saving device comprises a liquid nitrogen supply unit, a low-temperature nitrogen supply unit, a first rectifying tower, a liquid nitrogen gasification tank, a low-temperature nitrogen buffer tank, a second rectifying tower and a tail gas emission unit. The liquid nitrogen supply unit supplies liquid nitrogen to the first rectifying tower and the liquid nitrogen gasification tank through two-way adjustment, low-temperature nitrogen generated by the first rectifying tower is divided and then partially enters the liquid nitrogen gasification tank to be adjusted, and gasified nitrogen is subjected to pressure stabilization through the low-temperature nitrogen buffer tank and then serves as an auxiliary cold source of the second rectifying tower. And gradient utilization of cooling capacity is realized through a multi-stage regulating valve. According to the device, low-temperature nitrogen discharged by the rectifying tower is subjected to secondary recycling innovatively, an auxiliary cold source system is constructed through the low-temperature nitrogen buffer tank, and liquid nitrogen consumption is effectively reduced; discharged low-temperature nitrogen is recycled, and loss of liquid nitrogen is reduced.

Heavy inert gas insulation layers are provided for one or more components of a launch system for a plurality of missiles. The layer may be integrated into the walls of the components or provided in inserts attached to the components. An inert gas fills a sealed void space in the walls or the insert. The inert gas has a density of at least 1.5 Kg / m3 and a thermal conductivity (Tcond_gas) of no greater than two-thirds of a thermal conductivity of air (Tcond_air) to form the heavy inert gas insulation layer. The inert gas may be Argon, Krypton, Xenon or a synthetic gas and is suitably held at a pressure of 760 Torr (1 atmosphere) or greater at sea level. The heavy inert gas insulation layer delays desensitization or inhibits premature reaction of the energetic materials inside the missiles due to high external temperatures. The insulation layers allow for more compact and dense configurations of the launch system and missiles.

Method for forming a magnetoresistive element by forming a sense layer having a free sense magnetization, a reference layer having a fixed reference magnetization, wherein the reference layer is formed by deposition in a Krypton atmosphere, a tunnel barrier layer between the reference layer and the sense layer, and a hard layer having a fixed reference magnetization layer opposite to that of the reference layer. The magnetoresistive element may be configured to measure an external magnetic field oriented substantially perpendicular to the plane of the reference layer. The reference magnetizations of the reference and hard layers may be oriented substantially perpendicularly to the plane of the reference and hard layers. The sense magnetization may have a vortex configuration in the absence of an external magnetic field.

Heavy inert gas insulation layer(s) are provided for containers configured to contain components that include an energetic material. The heavy inert gas insulation layer delays desensitization or inhibits premature reaction of the energetic material due to high external temperatures. The layers may be formed in hollow walls of the container itself or as inserts that are attached to the container. An inert gas fills a sealed void space in the walls or the insert. The inert gas has a density of at least 1.5 Kg / m3 and a thermal conductivity (Tcond_gas) of no greater than two-thirds of a thermal conductivity of air (Tcond_air) to form the heavy inert gas insulation layer. The inert gas may be Argon, Krypton, Xenon or a synthetic gas and is suitably held at a pressure of 760 Torr (1 atmosphere) or greater at sea level.

The present disclosure generally relates to topological semi-metal (TSM) based spin-orbit torque (SOT) devices, and methods of forming a TSM layer. The TSM layer of the SOT device comprises YPtBi having a 1:1:1 stoichiometry. The YPtBi has a density between about 9.7 g / cc to about 11.2 g / cc. Kr, Ar, or Xe gas is used to sputter the YPtBi to form the YPtBi layer or film. Trace amounts of Kr, Ar, or Xe are detectable in the YPtBi layer, where the YPtBi layer comprises about 1% of Kr, Ar, or Xe. One or more targets comprising YPtBi; YPt and Bi; PtBi and Y; Y, Pt, and Bi; or YBi and Pt can be used when forming the YPtBi layer. In embodiments where two targets are used to form the YPtBi layer, different amounts of power may be applied to each target.

The invention relates to the technical field of chromatographic analysis, in particular to a TCD gas chromatography activated carbon adsorption separation method and system for Kr. The method comprises the steps that the difference between a first characteristic value of current gas at all temperatures and the maximum value in the first characteristic values of the current gas at all temperatures is compared; determining a second characteristic value according to the difference between the spectrum peak area of the current gas chromatography at each temperature and the maximum spectrum peak area; and determining a likelihood function when the krypton proportion in the current gas is equal to the krypton proportion in each gas sample by analyzing the similarity of the chromatography between the current gas and each gas sample at each temperature and the difference of the second characteristic values, so as to obtain the related krypton content for evaluating the adsorption separation effect of the active carbon in the current gas. The interference of xenon to krypton separation detection is solved, and the precision of krypton separation detection for TCD gas chromatography is improved.

The invention discloses a coil excitation Hall thruster magnetic circuit structure suitable for a krypton working medium, relates to the technical field of aerospace technology and plasma propulsion, and solves the problems of low ionization efficiency and insufficient characteristic length of an existing Hall thruster after krypton is used. A magnetic conductive inner core is arranged at one end of a bottom plate, and a magnetic conductive cover is arranged at the other end; an inner magnetic pole is arranged at the upper end of the magnetic conductive inner core; an inner coil is arranged between the inner magnetic pole and the bottom plate and corresponds to the outer side of the magnetic conductive inner core; an outer coil is arranged between the outer magnetic pole and the bottom plate and corresponds to the inner side of the magnetic conductive cover; a ceramic channel is arranged between the inner coil and the outer coil; the bottom plate comprises an inner bottom plate and an outer bottom plate, the inner bottom plate and the outer bottom plate are coaxially arranged, and a bottom plate gap is formed between the inner bottom plate and the outer bottom plate. The characteristic length of a magnetic field in a discharge channel can be remarkably prolonged, the krypton ionization efficiency is improved, and meanwhile the structure of the thruster is simplified.

The utility model discloses a self-sealing type inflating device for a krypton gas storage tank, which comprises a krypton gas storage tank body and reinforcing ribs arranged on the outer surface of the krypton gas storage tank body, and a support frame is arranged below the krypton gas storage tank body; a self-sealing inflation port is formed in one end of the krypton gas storage tank body, and a self-sealing assembly is inserted into the self-sealing inflation port; the self-sealing assembly is sleeved with a normally-closed sealing cap. The design of the self-sealing inflation port and the self-sealing assembly ensures the sealing performance of the krypton gas storage tank in the inflation and deflation process, the elastic deformation mechanism of the conical rubber gas inlet pipe can open and close the sealing port in the inflation and deflation process, krypton gas leakage can be effectively avoided even in frequent injection and extraction operation, and the krypton gas storage tank is safe and reliable. Due to the normally-closed sealing cap, the leakproofness of the system in the non-operation state is guaranteed, the krypton is effectively prevented from leaking in the inflation and deflation process, and the use safety is improved.

The utility model relates to a molecular sieve device for krypton and xenon production, which comprises a pipeline with a rectangular section, a plurality of screening mechanisms are arranged on the pipeline along the length direction, a plurality of strip-shaped insertion holes which vertically extend are arranged on the right side wall of the pipeline and are in one-to-one correspondence with the screening mechanisms, and the screening mechanisms can be inserted into the strip-shaped insertion holes; the screening mechanism comprises a rectangular frame body, the two faces of the frame body are both covered with net faces, and the frame body is filled with molecular sieve filler. A vertically-through upper opening is formed in the top edge of the frame body, and a vertically-through lower opening is formed in the bottom edge of the frame body. The right side edge of the frame body is provided with a horizontally-through plugboard hole, and the plugboard hole corresponds to the position of the lower opening; and the plug board penetrates through the plug board hole and extends into the lower opening. The multi-stage screening mechanism is adopted, compared with the prior art, a better impurity gas removing effect is achieved, the molecular sieve filler of a certain screening mechanism can be replaced according to needs, and the replacement process is simpler.

This invention discloses a covalent organic framework for the separation of krypton and xenon gases and its preparation method. Using tetrahedral symmetric aldehyde ligands with four sites and amino ligands with different side group substitution sites as raw materials, o-dichlorobenzene and n-butanol as solvents, and glacial acetic acid as catalyst, a covalent organic framework compound with a 7-fold interpenetrating PTS topological network structure is synthesized through pre-ultrasonic treatment, high-temperature reaction process, and purification steps such as filtration and extraction. The synthesized covalent organic framework compound can selectively adsorb and separate xenon-krypton mixed gases.

The invention discloses a method for adsorbing and separating high-purity gas, which belongs to the technical field of chemical separation and comprises the following steps of: separating and purifying mixed gas or isotope by using an adsorption separation medium; the adsorption separation medium is a microporous metal organic framework material which is thermally synthesized from divalent metal salt and a ligand 1, 5-dihydrobenzo [1, 2-d: 4, 5-d '] bis ([1, 2, 3] triazole) through a solvent. The microporous metal organic framework material has a uniformly distributed microporous structure, a high specific surface area and excellent thermal stability and chemical stability, and high-selectivity separation of rare gas xenon / krypton, methane / propane / ethane, propylene / ethylene, ethane / ethylene and xenon isotopes can be realized through pressure swing / temperature swing adsorption; the adsorbent has ultrahigh adsorption and storage capacity for xenon, propane, propylene and ethane, and high-purity (greater than or equal to 99.99%) xenon, krypton, methane, ethylene and ethane and high-purity isotopes of 129Xe and 131Xe can be obtained after separation.

The invention relates to the technical field of refrigerants, in particular to a multi-component mixed refrigerant suitable for a temperature zone of-86 DEG C. The multi-component mixed refrigerant comprises a second group of substances, a fourth group of substances, a first group of substances, a third group of substances or one of the first group of substances and the third group of substances, and the first group of substances is methane R50, krypton R784 or a mixture of methane R50 and krypton R784; the second group of substances is ethylene R1150, ethane R170, xenon Xe or a mixture thereof; the third group of substances is propane R290, propylene R1270 or a mixture of the propane R290 and the propylene R1270; and the fourth group of substances is R601a, R601, R600a, R600 or a mixture of at least two of R601a, R601, R600a and R600. According to the refrigerant, by designing the components and the mass ratio of the refrigerant, efficient refrigeration in the temperature zone of-86 DEG C is achieved, meanwhile, it is ensured that the total amount of hydrocarbon refrigerant in a single refrigeration cycle is not larger than 150 g, the refrigerant is suitable for a heat regeneration and exchange type single-component cycle (LHR) refrigeration system, and the refrigeration efficiency and the system stability can be remarkably improved.

Various embodiments include a thermally packaged atomic device. The thermally packaged atomic device includes an atomic vapor unit, a heater, and a housing. The atomic vapor unit is located within the housing. The heater heats the atomic vapor unit. The housing is filled with a gas selected to have a thermal conductivity less than that of air. The gas having a thermal conductivity less than that of air may include xenon or krypton. The enclosure surrounds the atomic vapor unit with a gas.

The main problem to be addressed by the present invention is to provide: a method for detecting an air leak present in a luminal organ with high reliability; and an agent for detecting an air leak.　As a means for solving the problem, provided are: a method for detecting an air leak present in a luminal organ, the method including a step for detecting the air leak by using CT to detect leakage, from the luminal organ, of at least one type of gas selected from the group consisting of xenon, krypton, and argon; and an agent for detecting an air leak present in a luminal organ, the agent containing at least one type of gas selected from the group consisting of xenon, krypton, and argon.

The utility model relates to a nitrogen recycling device in a krypton-xenon refining system. Comprising a krypton and xenon feed gas pipeline, the krypton and xenon feed gas pipeline is connected with a light component removal rectification part through a water removal unit, a tower kettle liquid outlet pipeline of the light component removal rectification part is connected with a krypton and xenon separation tower, the light component removal rectification part comprises a light component removal rectification tower, and a gas phase outlet of the light component removal rectification tower is connected with a condenser tube pass. A tube pass outlet of the condenser is respectively connected with a reflux inlet of the light component removal rectifying tower and a liquid oxygen storage tank; the moisture removal unit comprises a first channel of a first heat exchanger, and the first channel of the first heat exchanger is connected with a light component removal rectifying tower through an adsorber and a first channel of a second heat exchanger; the liquid nitrogen storage tank is connected with the regenerated gas buffer tank for the adsorber through a shell pass of the condenser and a second channel of the second heat exchanger; an outlet of the regenerated gas buffer tank for the adsorber is connected with the adsorber; the device is simple in structure and reasonable in design, and can realize long-time stable operation of a krypton and xenon refining system while realizing effective utilization of nitrogen cooling capacity and self.

The invention discloses a high and low temperature control device for krypton-85 temperature swing adsorption separation in the atmosphere. The high and low temperature control device comprises a refrigerating machine, a helium compressor, a vacuum chamber, a vacuum pump, an activated carbon adsorption trap, a heating piece, a heat insulation piece and an adjusting assembly. The refrigerating machine is mounted on the vacuum chamber, a cold head of the refrigerating machine extends into the vacuum chamber, and the refrigerating machine is connected with the helium compressor; the adjusting assembly is arranged in the vacuum chamber, the heat insulation part is arranged on the adjusting assembly, the heating part is arranged on the heat insulation part and fixedly connected with the activated carbon adsorption trap, the activated carbon adsorption trap is arranged opposite to a cold head of the refrigerator, and the adjusting assembly drives the activated carbon adsorption trap to be attached to or separated from the cold head of the refrigerator; the vacuum pump is communicated with the vacuum chamber. The high and low temperature control device is simple in structure, and high and low temperature control in the krypton-85 temperature swing adsorption separation process can be rapidly and effectively achieved.

The utility model discloses a krypton xenon raw material liquid oxygen storage device which comprises an outer tank, a tank cover, an inner tank and a first damping mechanism, an air outlet pipe is fixedly arranged on the tank cover, the first damping mechanism comprises two fixing blocks, two sliding blocks, two first springs and a fixing plate, the two fixing blocks are fixedly arranged on the inner bottom face of the outer tank, and the two sliding blocks are fixedly arranged on the inner bottom face of the inner tank. The two sliding blocks are connected into the corresponding fixing blocks in a sliding mode, the two first springs are arranged in the corresponding fixing blocks, the two ends of each first spring are fixed to the corresponding fixing block and the corresponding sliding block respectively, two first mounting plates are fixedly arranged on the bottom face of the fixing plate, a first rotating shaft is fixedly arranged between the two first mounting plates, and two second mounting plates are fixedly arranged on the two sliding blocks respectively. A second rotating shaft is fixedly arranged between the two second mounting plates, and connecting rods are fixedly arranged between the first rotating shaft and the second rotating shaft located on the same side. The utility model is used for solving the technical problem that the follow-up operation is influenced by explosion in the conveying process.

Heavy inert gas insulation layers are provided for one or more components of a launch system for a plurality of missiles. The layer may be integrated into the walls of the components or provided in inserts attached to the components. An inert gas fills a sealed void space in the walls or the insert. The inert gas has a density of at least 1.5 Kg / m3 and a thermal conductivity (Tcond_gas) of no greater than two-thirds of a thermal conductivity of air (Tcond_air) to form the heavy inert gas insulation layer. The inert gas may be Argon, Krypton, Xenon or a synthetic gas and is suitably held at a pressure of 760 Torr (1 atmosphere) or greater at sea level. The heavy inert gas insulation layer delays desensitization or inhibits premature reaction of the energetic materials inside the missiles due to high external temperatures. The insulation layers allow for more compact and dense configurations of the launch system and missiles.

The utility model belongs to the technical field of air separation, and particularly discloses an internal compression air separation poor krypton xenon extraction device and a start-stop control system, which comprise a lower tower, a main cooler, an upper tower, a gas-liquid separator, a liquid oxygen evaporator, a liquid oxygen adsorber, a liquid oxygen pump and a liquid jet evaporator, all the devices are communicated through pipelines, liquid oxygen is buffered through the gas-liquid separator before entering the liquid oxygen pump, the capacity of rapidly switching two working conditions of producing poor krypton xenon and not producing poor krypton xenon is achieved, and due to the fact that the gas-liquid separator does not participate in heat exchange and rectification, potential safety hazards do not exist in the change of the liquid level of the gas-liquid separator. Therefore, the safety of rapid working condition switching equipment can be guaranteed, and stable working condition operation of the main tower is guaranteed.

The invention provides a krypton gas separation compound and a preparation method thereof, and relates to the field of krypton gas separation. The krypton gas separation method comprises the following specific preparation methods: step 1, air pretreatment: adopting an impurity pretreatment device for pretreatment; step 2, air compression: the treated air is pressurized through a compressor, and the compressor is pressurized to a high-pressure state so as to improve the subsequent separation efficiency and ensure that the air is clean and dry; 3, the air pretreated in the membrane separation process enters a membrane separation device, and a membrane material selectively separates krypton gas and other gases such as nitrogen and oxygen according to the difference of the permeation rate of the krypton gas and the permeation rate of the other gases. Through the arrangement of the spiral water tank, the sponge ring and the filtering film layer, moisture of moisture is centrifugally discharged through the spiral water tank, impurities are adsorbed through the sponge ring, secondary filtering operation is achieved through the filtering film layer, krypton gas is in a sealed and closed state in the whole process, and the separation safety is improved.

The utility model relates to the technical field of vaporizers, in particular to an air temperature type vaporizer for krypton xenon production, which comprises a heating box arranged at the top of a box body, the top of the heating box is provided with an opening, a heating sheet is arranged in the heating box, and an exhaust fan is arranged in the heating box below the heating sheet; the main pipe is vertically arranged in the box body, the upper end of the main pipe penetrates through the top of the box body and then is communicated with a connecting pipe on the heating box below the exhaust fan through a rotating joint, and the main pipe swings under the driving of a swinging assembly; the two air spraying pipes are oppositely arranged above and below the finned tube in the box body in parallel, the ends of the two air spraying pipes are communicated with the main pipe, and a plurality of air spraying heads are arranged on the sides, facing the finned tube, of the two air spraying pipes. The utility model has the advantages of keeping vaporizing capability and the like.