133results about How to "Keep cold" patented technology

The present invention relates to methods of treating subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation including placing a first aqueous composition and a second aqueous composition in a subterranean formation. The placing includes injecting the first aqueous composition through a tubular passage in a wellbore. The placing also includes injecting the second aqueous composition through an annular passage in the wellbore.

An outer plate 31, which is used under a lubricated environment of a differential gear oil including a friction adjuster, is made of a SC tempered material which is subjected to nitriding treatment to suppress chemical adsorption of the friction adjuster. An inner plate 33 has paper on a surface thereof. The outer plate 31 and the inner plate 33 are provided to apply or release the torque between an outer differential case 3 and an inner differential case 5 of a rear differential device 1 having the outer differential case 3 and the inner differential case 5 capable of relatively rotating to the inside and the outside.

A low-frequency high AC voltage from an excitation voltage power source (14) is applied between one electrode (8) and two other electrodes (9A and 9B) to generate a low-frequency AC-excited dielectric barrier discharge within a gas passage (3), thereby creating atmospheric pressure non-equilibrium micro-plasma. A sample gas is mixed with hydrogen inside the passage of a nozzle (51), and further mixed with air outside an exit port (53) to burn, forming a hydrogen flame (57). Then, the sample gas reaches an ionization area (56), where the sample components are ionized due to the effect of light emitted from the plasma. Meanwhile, water molecules generated in the hydrogen flame (57) are supplied into the ionization area (56), whereby some of the sample-molecule ions are hydrated while the others undergo a reaction to form a hydroxonium ion. These kinds of hydrated ions have long lifetimes and barely become extinct halfway, so that they can efficiently reach a detection electrode (13) and be detected as ion current. As a result, the detection sensitivity is improved and the dynamic range is enhanced.

The invention discloses an air release plug of an antiseep automobile transmission, and the air release plug is used for solving the seepage problem of an existing air release plug. The air release plug comprises a plug cap and a plug body with an exhaust cavity, wherein the plug cap sleeves the plug body; an annular air outlet is formed between the inner wall of the plug cap and the outer wall of the plug body; the exhaust cavity is internally provided with a vent pipe; the vent pipe comprises an outer shell and an inner shell with a cavity; the outer shell sleeves the inner shell so as to form a vacuum steam cavity; two end parts of the outer shell are connected with the inner shell by virtue of end caps; a wick is paved on the outer wall of the steam cavity. and the steam cavity is filled with working liquid; the lower end of the cavity of the inner shell is communicated with that of a vent cavity; the upper end of the cavity of the inner shell is communicated with that of the vent cavity; the periphery of the outer shell is provided with a pipe shell in a sleeving way; a sealed cooling cavity is formed between the pipe shell and the outer shell and is filled with cooling liquid.

The invention belongs to the field of synthetic leather, and provides carbon fiber modified non-solvent polyurethane surface layer resin for sports shoe leather. The resin is formed by mixing a component A and a component B according to mass percent being 2:1 to 1:2, wherein the component A comprises 5 to 15 parts of aliphatic diisocyanate, 50 to 60 parts of low polymer dihydric alcohol, 10 to 20 parts of organosilicone polyhydric alcohol, 3 to 10 parts of micromolecule dihydric alcohol, 0.5 to 5 parts of micromolecule trihydric alcohol, 0.1 to 1.5 parts of a catalyst, 0.5 to 2.5 parts of a light / heat stabilizer, 0.02 to 0.5 part of a flatting agent, 0.01 to 0.2 part of a defoamer, 0.1 to 0.5 part of a dehydrator, and 0.5 to 5.0 parts of carbon fiber; the component B comprises 40 to 50 parts of aliphatic diisocyanate, 0 to 10 parts of triisocyanate, 35 to 50 parts of polytetrahydrofuran dihydric alcohol, 0.5 to 5 parts of micromolecule dihydric alcohol, 0 to 2 parts of micromolecule trihydric alcohol, and 0.5 to 1.0 part of a light / heat stabilizer. The invention further provides a preparation method and application of the resin. The tangential breaking strength of carbon fiber modified resin coating can reach 130kN / m or above; for non-solvent sports shoe leather prepared through the method, the peeling strength can reach 90N / 3 cm or above and the hydrolysis resistance can reach 10 weeks or above.

The invention particularly relates to a preparation method of traditional Chinese medicine fine powder, and belongs to the field of traditional Chinese medicines. The preparation method particularly comprises the following steps: (1) first a traditional Chinese medicinal material is conventionally crushed that the traditional Chinese medicinal material can pass a sieve of 80-100 mesh; (2) the crushed traditional Chinese medicinal material is processed according to a conventional method; and (3) low-temperature ultramicro-pulverization of the crushed traditional Chinese medicinal material is carried out to obtain the traditional Chinese medicine fine powder with the particle diameter of less than or equal to 0.5 [mu]m and with the content of more than 98%. Through use of the preparation method, cellular level pulverization of the traditional Chinese medicinal material can be realized, the traditional Chinese medicinal material can be more thoroughly processed, and the preparation method is conducive to rapid dissolution and digestion and absorption of effective components.

The invention discloses a perovskite thin-film solar cell, which comprises a cathode, a perovskite light absorption layer and an anode. An electrode interface modification layer is formed between the anode and the perovskite light absorption layer. The electrode interface modification layer comprises atoms and / or ions capable of reacting with the perovskite light absorption layer so as to promote the crystallinity of perovskite crystals. Meanwhile, the electrode interface modification layer is used for improving the surface roughness and the morphology of the anode. The invention also discloses a preparation method of the perovskite thin-film solar cell. The electrode interface modification layer is arranged in the structure of the perovskite thin-film solar cell, so that the performance and the reproducibility of a device are effectively improved. Meanwhile, the preparation process is simple and controllable, and raw materials are cheap and easy to obtain. Therefore, the preparation method is suitable for the preparation of large-area flexible perovskite solar devices.

The invention provides continuous preparation equipment and a process for a fiber-reinforced metal glass composite filament, and belongs to the field of amorphous alloy (metallic glass). The continuous preparation equipment is composed of a vacuum system, a pay-off wheel set, a heating system, a cooling device and a dragging mechanism. A heating carrier is placed in the high vacuum system so as to obtain a composite interface with good bonding property, no blends and complete cleaning performance. By adopting the method for paying off, a double-guide-wheel device is used, the two guide wheels are tangent in the two guide wheels, and the lower guide wheel is connected with a motor so as to directly wind the prepared filament, thus realizing the continuous and large-scale production and achieving the purposes of short procedures and energy conservation and consumption reduction. The continuous preparation equipment and process are applied to preparation of armour piercing materials and other uses.

The invention relates to a directional power-assisted oil composition and its application and mainly solves the problems of poor compatibility between a directional power-assisted oil and a rubber sealing member and the fault of a power steering system due to deformation or failure of the rubber sealing member with the application of a power-assisted oil composition in the power-assisted steering system in the prior art. The directional power-assisted oil composition comprises the following components of: by weight, a) 0.1-5 parts of boron polyisobutylene succinimide; b) 95-99.9 parts of base oil. By the adoption of the technical scheme, the problems are greatly solved. In addition, the technical scheme can be used in the industrial production of the directional power-assisted oil composition provided by the invention.

The invention discloses a cold-chain logistics box with a refrigeration function. The cold-chain logistics box with the refrigeration function comprises a box body 9 and a refrigeration mechanism 1, wherein the box body 9 is provided with a refrigeration air inlet 91; the refrigeration mechanism 1 comprises a stirling cryocooler 2 and a cold cavity; the stirling cryocooler 2 is provided with a cold end 3, and the cold end 3 is arranged in the cold cavity; the cold cavity is made of heat insulation materials and provided with a cold end air outlet 4, and the cold end air outlet 4 of the cold cavity is communicated with the refrigeration air inlet 91 of the box body 9. By means of the technical scheme, the cold storage effect of the logistics box can be guaranteed, and the cold-chain logistics box with the refrigeration function is convenient to dismount, mount and convey.

The present invention teaches a beverage tower of the type having a cold block with glycol recirculation, however, the traditional tap is actually built into the cold block, so as to keep the entire beer tap or other type of tap cold and maintain the beverages in a sanitary condition meeting health codes. The glycol lines within the cold block are then arranged so as to pass around the tap in the cold block, resulting in a tap which remains cooled so long as the glycol recirculation system keeps the block cold. Serpentine channels may be used so that the beverage passing through the beverage supply channels has a longer run in contact with the conductive material of the cold block and thus more opportunity to reject heat thereinto.

The invention discloses an air exhausting type deinsectization and cooling traditional Chinese medicine cabinet and belongs to the field of medicine storage equipment. The air exhausting type deinsectization and cooling traditional Chinese medicine cabinet comprises a cabinet body, a plurality of drawer tanks are formed in the cabinet body, and medicine buckets are mounted on the drawer tanks and internally and fixedly connected with partition plates. Each medicine bucket is divided into three medicine grids by the corresponding partition plates. First heat preservation plates are laid on the inner walls of the drawer tanks, sealing cushions are fixedly connected to the reverse sides of the medicine buckets, and bottom plates of the medicine buckets are each of a hollow structure. The partition plates are each of a hollow structure similarly, and the interiors of the bottom plates of the medicine buckets communicate with the interiors of the partition plates. The bottoms of the medicine grids are provided with a plurality of vertical ventilating mechanisms, and the multiple vertical ventilating mechanisms are uniformly distributed at the bottoms of the medicine grids and comprise vertical hole and first semi-circular grooves. The air exhausting type deinsectization and cooling traditional Chinese medicine cabinet can cool traditional Chinese medicine in the medicine buckets at a time without the method that refrigerating equipment is specially and additionally arranged and can clear mature insects and insect eggs away.

The invention relates to the technical field of charging piles, in particular to a charging pile with a dust fall function. The charging pile comprises a base, a shell, a substrate, a water tank I, awater pump I, a water filling nozzle, an infrared detector, a door plate, a charging pile body, a hanger, a charging gun, a condensing pipe, a condenser, a central controller, a rain blocking plate, atriangular ceiling, a dust sensor, an electric telescopic rod, a fixing rod, a solar panel, a water inlet channel, a water tank II, a liquid level sensor, a water pump II, a water pump III, a fixingcolumn, an atomizing spray head, a photosensitive sensor and an electromagnetic valve, wherein the shell is arranged at the top end of the base; the substrate is arranged at the bottom end inside theshell. The charging pile is novel in structure, has diverse functions, is environmentally friendly and has very high practicability. By adopting the charging pile, rain water collection and light energy collection and conversion functions can be realized, and the collected rain water is condensed and cooled; meanwhile, smart dust fall and water source supplement can be performed, normal running ofa device is ensured, and the power energy is saved greatly.

The present invention provides an active thermoelectric cooling system for an electronic device in severe working conditions. A cold end of a thermoelectric module component is connected with a heating position of the device; a passive cooling module is connected with a hot end of the thermoelectric module component; a temperature control assemblycomprises a temperature sensor, a microprocessor and a driving power supply; the temperature sensor is placed between the device and the cold end of the thermoelectric module component, in order to test the temperature of an object to be cooled and send the temperature to the microprocessor; the microprocessor calculates an appropriate drive voltage of the driving power supply according to a set temperature and the testing temperature for further driving the thermoelectric module component. According to the present invention, the thermoelectric module is used for actively cooling the device, deficiencies of traditional passive cooling can be overcome in severe working environments, and the device cooling requirements are satisfied; an energy-saving temperature control strategy is used for the unidirectional cooling and self-cooling of the device, so that the device can work at a relatively low temperature, while the condensation problem due to the device temperature lower than the dew point temperature is avoided.

The invention discloses a dry type transformer, and relates to electrical equipment. The dry type transformer comprises a transformer, wherein a shell is arranged outside the transformer; the transformer is arranged in the shell in a sealed mode; the shell is provided with a vacuum interlayer, and a cable channel is formed in the vacuum interlayer; a gas circulating device is further arranged on the shell; the gas circulating device comprises an air pump and a gas storage tank; compressed nitrogen is stored in the gas storage tank; the shell is further provided with an air inlet and an air outlet which are matched with the gas circulating device; and a heat exchange device is further arranged on the gas circulation device. Compared with the prior art, the dry type transformer is sealed ina shell full of nitrogen, so that external dust and impurities are isolated, and the constant-temperature and constant-humidity in the shell can be kept; and due to the fact that no oxygen exists, oxidation reaction is completely eradicated, so that the service life of the dry type transformer is greatly prolonged, and the occurrence rate of faults is reduced. Moreover, after the dry type transformer is exploded, the occurrence of fire disasters can be reduced under the inhibition of nitrogen.

A rapid cooling device, comprising: a) a freezer consists of a thermally insulated compartment and a heat pump that transfers heat from the inside of said freezer to its external environment so that the inside of said thermally insulated compartment is cooled to a relatively low temperature below the ambient temperature of the room, wherein said freezer is adapted to maintain said relatively low temperature; and b) a storage chamber adapted to accommodate at least one item for rapid cooling, wherein said storage chamber and said thermally insulated compartment are connected via one or more connecting members such that cooled air from said compartment can flow in a circulate manner from said thermally insulated compartment to the inner volume of said storage chamber and back said thermally insulated compartment, thereby reducing the temperature within the inner volume of said chamber as a result of temperatures differences between said thermally insulated compartment and said storage chamber.

The invention relates to the technical field of frequency converter devices, and discloses a frequency converter capable of preventing high-temperature damage and a using method thereof. Through the arrangement of a temperature conduction wire and the like, when the temperature is higher than the rated temperature set by a central processing unit, the central processing unit starts a cooling system in time to cool the whole frequency converter to prevent the frequency converter from being burnt due to high temperature; by starting a motor, an input shaft rotates, then a driving gear rotates along with the input shaft, the driving gear drives a driven gear to rotate, and therefore a transmission shaft drives a transmission belt wheel to rotate, and by arranging a second transmission belt, the transmission shaft and a driven shaft drive two air-cooled heat dissipation fans to rotate correspondingly, and overall air-cooled cooling of the circuit bottom plate is achieved. And through the arrangement of a first transmission belt and the like, a cooling shaft drives a water tank heat dissipation fan to rotate, then the water tank heat dissipation fan conducts air cooling on cooling liquid, and therefore it is guaranteed that the cooling liquid keeps low temperature and is pumped back by a cooling pump to be recycled.

The invention discloses a device adopting a dual-heat-source spray evaporation seawater desalination technology which uses a solar air collector and a solar water heater. The device comprises a water cooling tank, the solar water heater, an evaporator, the solar air collector, a condenser, a concentrated seawater collection box, a gas-liquid separator, a freshwater collection box, a supercharge pump, a spray device, a filter, a temperature sensor and the like. Seawater in the water cooling tank is sprayed into the evaporator after the seawater is heated by the solar water heater, high-temperature air generated by the solar air collector is blown into an evaporation chamber by a blower so as to be mixed with water mist, and water vapor generated by the evaporation of the water mist when the water mist is exposed to heat is led into the condenser; remained water in the evaporator is drained into the concentrated seawater collection box; the water vapor entering the condenser is liquefied when the water vapor is exposed to cold, and the liquefied water vapor flows into the freshwater collection box through the gas-liquid separator; and cooling seawater passes through a condensing chamber, then, enters the water cooling tank, and circularly flows after being cooled. The device for seawater desalination is applicable to households or small factories and has the advantages of energy saving performance and high efficiency and the like.

The invention discloses a vacuum freeze drying device which comprises a freeze-drying bin, a water catching bin and a refrigerating device arranged outside the water catching bin. The freeze-drying bin is communicated with the water catching bin through a connecting hole formed in the side wall of the water catching bin, and the joint is sealed. The refrigerating device comprises an electric cooling plate, a water cooling plate and a heat insulation layer. The vacuum freeze drying device has the advantages that a semiconductor electric cooling piece and a water cooling piece are combined for creating the low-temperature conditions of the water catching bin, the temperature difference of the two sides of the electric cooling piece can reach 60-70 DEG C, in addition, due to the use of circulating cooling water, the temperature of the water catching bin can be reduced to be lower than minus 40 DEG C, the requirement for freezing drying of most materials can be met, and the vacuum freeze drying device is convenient to use, practical and capable of saving cost and improving efficiency.

The invention discloses a secondary atomization pore-forming method for a lithium ion battery. The secondary atomization pore-forming method includes the steps: S1 preparing pore-forming agent solution according to normal-temperature saturation concentration serving as a standard; S2 adding a spray tank and a rapid oven to the tail of a coater, and filling the inside of the spray tank with atomization pore-forming agent solution; S3 uniformly coating a current collector base material with prepared positive electrode slurry and negative electrode slurry, and enabling the dried base material topass the spray tank and the oven; S4 winding baked electrode slices into roll materials and rolling the roll materials by a roller press according to normal processes; S5 enabling the rolled electrodeslices to pass a nitrogen atmosphere oven set according to pore-forming agent decomposition or boiling point temperature. High compaction of the electrode slices can be kept, the energy density of the battery can be improved, the uniformity of the battery electrode slices can be also improved, performances such as a rate performance, a cycle performance and a low-temperature performance can be ensured, surface layers of the electrode slices are provided with a large number of pores, the proportion of closed pores and shrink pores can be greatly reduced, and the effective porosity of the electrode slices is increased.

A cold-insualting agnet for feed, flower, medicine, etc contains water-soluble resin (5-60%) and water (40-95%).

An aspect of the present invention relates to a method of manufacturing a hexagonal ferrite magnetic powder comprising preparing a melt by melting a starting material mixture, wherein the starting material mixture comprises at least one hexagonal ferrite-forming component and glass-forming component comprising at least one B2O3 component and a content of the B2O3 component in the mixture ranges from 15 to 27 mole percent in terms of B2O3; rapidly cooling the melt to obtain a solid having a saturation magnetization level of equal to or lower than 0.6 A·m2 / kg; and heating the solid to a temperature range of 600 to 690° C. and maintaining the solid within the temperature range to precipitate a hexagonal ferrite magnetic powder having an average plate diameter ranging from 15 to 25 nm.