50results about How to "No evaporation" patented technology

The invention discloses a zinc-aluminum-magnesium-plated steel plate, a manufacturing method thereof, a thermoforming method and a component. The zinc-aluminum-magnesium-plated steel plate has strongcorrosion resistance of coating. After hot stamping, a coating is completely transformed into an iron alloy layer, no evaporation of coating evaporation phenomenon and no liquid-phase erosion phenomenon is generated, no hard Fe-Al intermetallic compound is generated, the steel plate has high strength and good toughness, the strength of the steel plate is more than 1500 MPa, and the elongation is more than 5%.

The invention relates to a technique for preparing boracic acid and magnesium sulfate monohydrate by utilizing ascharite sulfuric acid process. The method drives mother liquid and washing water to be heated to have acidolysis with ascharite powder and sulfuric acid when returned to an acidolysis tank; acid decomposing liquid is pumped into a magnesium extracting machine after filtering while hot; temperature in the magnesium extracting machine is raised and crystal magnesium sulfate monohydrate is separated out at a constant temperature while the boracic acid stays in liquid phase and magnesium sulfate monohydrate products are obtained after filtering and drying while hot. Filtrate is pumped into a boracic acid crystallizer and cooled to crystallize according to a well-known way and boracic acid products are obtained after centrifugal separation, washing with added water and drying. The mother liquid and washing water of the boracic acid return to acidolysis process for reusing. The invention solves the problem that a large discharge amount of mother liquid of the boracic acid is changed to be completely recycled. About a ton of magnesium sulfate monohydrate and 200 kilograms of boracic acid can be recycled from the mother liquid in production of each ton of boracic acid. The invention saves resources, reduces environmental pollution and promotes economic benefit of enterprises, thus being characterized by little investment, low energy consumption, low cost and high benefit.

The invention provides a discharge lamp, which is provides with an electrode which is formed by that the electrode is composed of a cover part and a basic body part which is provided with a basic body part side flange part. The cover part is provided with an embedding part and a cover part mainbody which is provided with a cover part side flange part. A heat conductor is arranged in an enclosed space in the electrode; the electrode can not be damaged when the lamp is ignited and can work stably. In the electrode of the discharge lamp, the width in the radial direction of the cirque welding parts of the basic part slide flat surface and the cover side flat surface ranges from 0.8-3.0mm; furthermore, in an axial profile of the basic body part side flange part, the angle alpha of the basic body part side flange apex angle which is formed by the basic body part side flat surface and the basic body part side inclined surface is a sharp angle more than 30 DEG; in the axial profile of the cover part side flange part, the angle Beta of the cover part side flange apex angle which is formed by the cover part side flat surface and the cover part side inclined surface is a sharp angel more than 30 DEG; furthermore, the sum of the angle Alpha and the angle beta is less than 160 DEG.

The invention relates to a HPLC (High Performance Liquid Chromatography) quantitative method for cephaeline hydrochloride and ipecine hydrochloride in an ipecacuanha medicinal material and a preparation of ipecacuanha medicinal material. The method is characterized by comprising the following steps: firstly, performing common isocratic elution according to PHLC method, and taking acetonitrile-carbinol-0.1% of phosphoric acid at a volume ratio of (8-9.5):(3-5):(86-88) as a flowing phase, wherein a detecting wavelength is 205nm; and simultaneously measuring the contents of the cephaeline hydrochloride and ipecine hydrochloride in the ipecacuanha medicinal material and a fluid extract, extract and tincture thereof so as to end the history of the measurement of total alkaloids of the ipecacuanha alkaloids in an acid base titration form according to the standard in multiple countries: after performing column chromatography separation for 4 times, respectively measuring the cephaeline hydrochloride and ipecine hydrochloride through delta A at 283nm and 350nm by adopting differential spectrophotometry. According to the method, only acidic aqueous carbinol or aqueous carbinol is used; after fine powder of the medicinal material is ultrasonically extracted or each preparation is diluted, a certain amount of subsequent filtrate is absorbed; and an alumina column is used for removing impurities so as to measure. The method is quick, convenient, accurate and capable of reappearing.

The invention discloses a solar seawater desalination system, comprising a solar heating device, a steam-water separator, a condensation device, a water supplementing device and a warming and heat-storing device, wherein a header is vertically arranged, a water supplementing outlet of the water supplementing device is communicated with a water inlet of the header, the steam-water separator is arranged between and connected with an upper end opening of the header and the condensation device, a steam separating opening of the steam-water separator is communicated with a steam inlet of the condensation device, and a water supplementing inlet of the water supplementing device is connected with the warming and heat-storing device. The solar seawater desalination system provided by the invention is used for solar seawater desalination and has the characteristics of a fast water circulation speed, rapid heat transfer, long duration of continuous distillation, little influence by weather, good adaptability, etc. Moreover, in the operation process of the system, integral power consumption and energy dissipation are small, operation cost is low, latent heat of cooling of steam is effectively used, and a high utilization rate of solar energy is realized.

The invention discloses a low-temperature liquid filling method and system for detecting the evaporation rate of a low-temperature heat insulation gas bottle. The method comprises the following stepsthat the low-temperature heat insulation gas bottle is preheated, an emptying valve and a bypass valve are opened, the bypass valve communicates with a low-temperature storage tank, a main valve is closed, the bypass valve conducts second-time pre-cooling on the low-temperature heat insulation gas bottle with the first preset filling mass rate, large-flow filling of the low-temperature heat insulation gas bottle is conducted, the aperture of an electric valve is increased, the main valve is opened, the bypass valve is closed, the low-temperature heat insulation gas bottle is filled with liquidfrom the low-temperature storage tank with the second preset filling mass rate through the main valve via a rotational flow generator, and the process is stopped when the liquid mass in the low-temperature heat insulation gas bottle reaches the 75% filling rate; and the aperture of the electric valve is reduced, the low-temperature heat insulation gas bottle is filled with the liquid from the low-temperature storage tank with the third preset filling mass rate through the main valve via the rotational flow generator, the main valve is closed after filling is conducted to the rated filling rate, standing is conducted for the preset time till the inner liquid surface stops rotating, and filling is finished.

The invention discloses an electric kettle for boiling beverage, which comprises a kettle body for containing water, an electric heater arranged on the bottom of the kettle body, a thermoregulator for preventing heating when the water is boiling, a funnel arranged on the port of the kettle for guiding boiling water into a water container, a recessed portion is arranged on a water drainage position corresponding the funnel on the bottom surface, the boiling water on the bottom surface can be collected to the recessed portion and discharged from the water drainage. When the water on the bottom surface decreases, the remaining water will be centralized to the recessed portion at the action of atmospheric pressure, one part of the kettle surface will be exposed in the air, thus switching off the power supply for the electric heater, so as to guarantee the complete infusing for the coffee bean powder or tea.

The embodiment of the invention provides a lithium ion secondary battery negative active material, which has a chemical formula of SiaGebAlcMd. Specifically, a, b, c and d respectively represent mole fractions, a is 20%-70%, b is 0.01%-10%, c is 1%-50%, d is 25%-75%, and M is one or more of Sn, Co, Ni, Ti, Fe, Cu, Mn, Mo, V and Cr. The lithium ion secondary battery negative active material has excellent cycling performance and initial efficiency. The embodiment of the invention also provides a preparation method of the lithium ion secondary battery negative active material, a lithium ion secondary battery negative pole piece containing the lithium ion secondary battery negative active material, and a lithium ion secondary battery containing the lithium ion secondary battery negative active material. The lithium ion secondary battery has high energy density and good cycle performance.

The invention belongs to the technical field of isotope collection devices, and particularly relates to an isotope sample collection device for inhibiting evaporation and exchange of a water sample. The isotope sample collection device comprises a sample storage container, a funnel and a water guide pipe, wherein the sample storage container and the funnel are hermetically connected through the water guide pipe, the top end of the water guide pipe is hermetically communicated with a water leakage port at the bottom of the funnel, and a floating ball is placed at the bottom of the funnel; the bottom end of the water guide pipe extends into the bottom end of the sample storage container, a thread is arranged on the outer surface of the bottom end of the water guide pipe, a water outlet hole is formed above the thread, the bottom end of the water guide pipe is sleeved with a closed sleeve, and a thread is arranged at the bottom end in the closed sleeve and is matched and screwed with the thread at the bottom end of the water guide pipe; the bottom end of the funnel is further communicated with a pressure relief pipe which is arranged at the bottom of the floating ball, and the other end of the pressure relief pipe is communicated with the sample storage container. A small amount of rainfall is stored in the water guide pipe for the first time to form a small liquid level, and large-area water sample evaporation is avoided; the arrangement of the pressure relief pipe enables all rainfall in the funnel to flow into the sample storage container.

The invention belongs to the technical field of bioengineering. In view of a technical problem that an existing tube is easy to scale, the invention provides a method for preventing a tube from scaling by using a tubular heat exchanger for concentration of an aqueous protein solution, wherein the method comprises a step of using the tubular heat exchanger for exchanging heat with the aqueous protein solution; the method is characterized in that an independent flash evaporation region is arranged above the interior of the tubular heat exchanger; a top end of the tube extends into the flash evaporation region; a tube cavity of the tube is always filled with a liquid material during heat exchanging operation; the heated liquid material is boiled in the flash evaporation region to form a gas-liquid mixture; an evaporation tank is also provided; the gas-liquid mixture in the flash evaporation region is injected into a material storage region at the bottom of the evaporation tank; gas-liquidseparation is performed by the evaporation tank; the concentrated aqueous protein solution is settled at the bottom of the evaporation tank; and an evaporated gas is discharged from an exhaust port in the top of the evaporation tank. The method provided by the invention has a beneficial effect of preventing the tube from drywall phenomenon to avoid occurrence of scaling in the tube.

The invention relates to a method for machining a material with high-power density electromagnetic radiation. The radiation has its wavelength selected material-specifically, such that the radiation penetrates inside the material without substantial surface absorption. The radiation is focused on a spot inside the material and/or in the proximity of a penetration surface and this spot is moved along a desired machining path. The electromagnetic radiation can be provided by laser light and the focusing can be effected by means of optics. The method is particularly useful in cutting glass and the method offers benefits, including only slight heating of the machined workpiece, smoothness of the fracture plane and no vaporization of harmful alloying elements.

The invention discloses a multipurpose metal film layer vacuum coating production line. The production line comprises an inlet chamber, an inlet buffer chamber, an inlet conveying chamber, a sputtering chamber, an outlet conveying chamber, an outlet buffer chamber, an outlet chamber and a quality inspection chamber, wherein the inlet chamber, the inlet buffer chamber, the inlet conveying chamber,the sputtering chamber, the outlet conveying chamber, the outlet buffer chamber and the outlet chamber are connected in sequence; transferring rollers connected with each other are arranged in the inlet chamber, the inlet buffer chamber, the inlet conveying chamber, the sputtering chamber, the outlet conveying chamber, the outlet buffer chamber and the outlet chamber; a film coating quality inspection roller and a quality inspection system are arranged in the quality inspection chamber; the transferring roller in the outlet chamber is connected with the film coating quality inspection roller;and the transferring rollers and the film coating quality inspection roller are used for transferring a film coating substrate. According to the multipurpose metal film layer vacuum coating productionline, mass and low-cost production of various coatings are achieved with high sputtering deposition rate and strong process universality; an element diffusion path is short with no intermediate product and no element evaporation, so that the preparation speed and the efficiency are high, the yield is 95% or above, and the production line is particularly suitable for large-scale industrial production.

The invention discloses a method for preparing carboxyl-type amphoteric starch in one step by a semi-dry process, which is characterized in that: firstly adding a cationic reagent 3-chloro-2-hydroxypropyl-trimethylammonium chloride to carry out etherification reaction on the original starch, After the etherification reaction, directly add the anionizing reagent monochloroacetic acid to carry out the carboxymethylation reaction. Both anionization and cationization reactions are carried out in one kettle to prepare carboxy-type amphoteric starch in one step, and the production process is uninterrupted. The invention can effectively solve the shortcomings of wet process and dry process. Cationic and anionic groups are connected in the same starch chain, so that the product has the characteristics of cationic starch and anionic starch, and various performances are improved; the reaction time can be shortened from 8 hours to 6 hours; due to the shortened process, energy saving and consumption reduction, so that The product cost can be saved by about 12%.

The invention relates to a manufacturing device for sludge solidification test samples and belongs to the technical field of environmental geotechnics.The manufacturing device for the sludge solidification test samples is composed of a storage system, a sample manufacturing system and an intelligent control rack system.A rubber bag is arranged in a piston cavity, a controllable feed port and a controllable discharge port are formed in the rubber bag, and it is guaranteed that no water evaporation or odor diffusion exists in the sample manufacturing process.By means of the mode of vacuum pumping and piston extrusion, it is guaranteed that initial raw materials are uniform and free of air, and sample manufacturing is rapid.A sample injection gun head is combined with a power compression piston controlled by a computer and a bearing table with an inductor, and it is guaranteed that a die cutting ring is tightly and fully filled with solidified sludge in the sample manufacturing process.The problems that more sample manufacturing materials are needed, consumed time is long, the samples are easily disturbed, holes are easily formed, the identity of the samples cannot be guaranteed, sample manufacturing is slow, the smell is heavy in the manufacturing process, and the reproduction of the samples is low are effectively solved through the manufacturing device.

The invention discloses a reactor capable of controllably loading various catalytic materials, a coating device and a preparation method. A rotor of the coating device is provided with a plurality of capillary tube positioning structures for fixing capillary tubes, and when the capillary tubes are fixed on the capillary tube positioning structures and centrifuged by a centrifugal machine, the axis of the capillary tube is in a plane perpendicular to the axis of the rotating shaft, and the axis of the capillary tube does not coincide with any diameter of the rotating shaft. A catalytic reactor is prepared by adopting the coating equipment, a reactor capable of controllably loading multiple catalytic materials is obtained, and during centrifugation, the total length of the same capillary tube is controlled to be located on the same side of the middle axial surface of a rotating shaft perpendicular to the axis of the capillary tube. According to the invention, PDMS liquid is coated on the set area of the capillary tube, so that catalytic materials can be fixed in the set area of the capillary tube, and various catalytic materials can be loaded on the same capillary tube by changing the mounting angle of the capillary tube during each centrifugal operation.