36results about How to "Timely contact" patented technology

The invention relates to a special baking oven for a silicon material, comprising a thermal insulation shell, an inner container, a high temperature air cavity, a hot air duct, a heater, a circulating fan, a dehumidifier, a dehumidification pipe, a humidity sensor and a temperature sensor, wherein the high temperature air cavity is arranged on top of the inner container, the hot air duct is arranged around the inner container, the heater is arranged in the hot air duct, the circulating fan is arranged between the high temperature air cavity and the hot air duct, the dehumidifier is communicated with the inner chamber of the inner container, the humidity sensor and the temperature sensor are arranged to realize automation control of the baking oven, hot air in the baking oven can form backflow to facilitate full contact of hot air and silicon material, and the dehumidifier can discharge water vapor in the baking oven in time and form proper vacuum in the baking oven to reduce moisture vaporization temperature and improve baking speed. The invention has obvious energy-saving effect and can greatly reduce energy consumption and labor cost.

The invention discloses a high-efficiency tree peeling machine. The high-efficiency tree peeling machine comprises a rack, a driving device and a plurality of cutting and feeding subassemblies, wherein each cutting and feeding subassembly comprises a cutter head subassembly, an upper feeding wheel and a lower feeding wheel; the cutter head subassemblies are rotatably arranged on the rack; the axis of each cutter head subassembly is parallel to the feeding direction; a connecting line between each cutter head subassembly and the center of the corresponding upper feeding wheel and a connecting line between each cutter head subassembly and the center of the corresponding lower feeding wheel form an acute triangle; feeding space is reserved between each cutter head subassembly and the corresponding upper feeding wheel; feeding space is also reserved between each cutter head subassembly and the corresponding lower feeding wheel; the axes of the upper feeding wheels and the axes of the lower feeding wheels are not parallel to the axes of the cutter head subassemblies; the direction of the horizontal component, which acts on materials, of each upper feeding wheel and the direction of the horizontal component, which acts on the material, of each lower feeding wheel are consistent with the feeding direction; and the cutter head subassemblies, the upper feeding wheels and the lower feeding wheels are driven to rotate by the driving device. By the cutting and feeding subassemblies, a plurality of trees can be simultaneously processed by the high-efficiency tree peeling machine, and the processing efficiency is improved.

The invention discloses an anticorrosive paint for building materials. The anticorrosive paint is prepared from the following raw materials in parts by weight: 40-50 parts of modified acrylic emulsion, 0.8-1 part of modified graphene, 9-13 parts of titanium dioxide, 8-10 parts of talcum powder, 1.2-1.6 parts of an antirust additive, 5-6 parts of an assistant and 20-30 parts of deionized water. Theinvention also discloses a preparation method of the anticorrosive paint. Modified acrylic emulsion is used as a film-forming substance of the paint, so that the paint not only has a good film-forming property and adhesive force, but also has excellent water resistance and aging resistance. By adding the antirust additive, an antirust effect can be achieved, and a corrosion inhibition function isachieved. Modified graphene is added to serve as an excellent shielding layer, so that the contact between building materials and a corrosive medium is prevented, and the corrosion resistance is enhanced. The paint is better combined with a matrix, and plays corresponding effects more easily. The aqueous anticorrosive paint has an excellent comprehensive performance and is suitable for protectingmetal building materials.

The invention provides a method for improving uniformity of an oxide layer on a surface of amorphous silicon, the method comprising the steps of a) cleaning amorphous silicon with hydrofluoric acid; b) cleaning the amorphous silicon with water; c) removing a water film on the surface of the amorphous silicon; d) cleaning the amorphous silicon with an oxidizing solution; and e) conducting drying treatment for the silicon wafer. By introducing the water film removal step after replacement of the hydrofluoric acid by water, the method, provided by the invention, enables the oxidizing solution to promptly and uniformly contact the amorphous silicon for oxidation treatment and a uniform oxide layer to be generated on the surface of the amorphous silicon, so that energy can be well buffered during ELA crystallization and uniform polysilicon of high quality is prepared.

The invention discloses a method for modifying a molecular sieve. The method comprises the following steps: dissolving a compound containing III B metal ions in the periodic table of the elements in water or acid to form a solution, mixing the solution with an organic complexing agent and / or a dispersing agent and a precipitating agent, stirring for at least 10 minutes to form a precipitate containing III B elements; mixing the obtained precipitate and molecular sieve slurry at the temperature of 5-100 DEG C, and stirring for at least 10 minutes to obtain mixed slurry of the precipitate containing the III B elements and the molecular sieve, and performing spray drying, calcining or not calcining, so as to obtain the modified molecular sieve, wherein a weight ratio, based on oxides, of the III B group elements to a dry basis of the molecular sieve is (0.3-10):100; a molar ratio of the organic complexing agent to the III B group metal ions is (0.3-10):1; a molar ratio of the dispersing agent to the metal ions is (0.2-16):1. The molecular sieve prepared by the method disclosed by the invention has excellent activity and stability and high heavy metal pollution resistance.

The invention relates to a combustion gas generation device, in particular to a combustion gas generator of biomass, comprising a vapourizing furnace, wherein, an enclosed dusting pool filled with water is arranged below the vapourizing furnace, an ash inlet arranged at the bottom of the lower furnace body of the vapourizing furnace is inserted to the dusting pool, the dusting pool is provided with a dusting unit, the ash-suction end of the dusting unit is inserted in the bottom of the dusting pool, and the ash-discharge end extends to the outside of the dusting pool. he invention has the advantages of simple structure and reasonable design, can guarantee the normal operation of the device continuously, efficiently and stability, improves the utilization rate and production efficiency of the device, and avoids the waste of resource.

The invention belongs to the field of internal threaded pipelines for heat exchangers, in particular to an internal threaded copper pipe for an air conditioner. The internal threaded copper pipe comprises a copper pipe body, a second spring, cylindrical blocks and water stirring plates, wherein internal threads are formed in the inner surface of the copper pipe body; the cylindrical blocks are positioned in the copper pipe body, and the water stirring plates are uniformly arranged in the circumferential directions of the cylindrical blocks; and the shape of the vertical section of each water stirring plate is in an obtuse triangle shape; and one end of the second spring is fixedly connected with the top ends of the water stirring plates, the other end of the second spring is fixedly connected with a steel ball, the second spring is a compression spring, and the steel ball slides along internal thread teeth. According to the internal threaded copper pipe for the air conditioner, a refrigerant flows through the copper pipe body from right to left, the refrigerant impacts the water stirring plates, so that the flow rate of the refrigerant is slowed down, and the heat exchange time between the refrigerant and the wall of the copper pipe body is longer; and the refrigerant impacts the inner wall of the copper pipe body through the water stirring plates, so that the refrigerant close to a central part of the copper pipe body can also contact with the inner wall of the copper pipe body in time, the refrigerant in per unit volume can absorb more heat on the copper pipe body, and the heat exchange efficiency is improved.

The invention relates to a catalytic cracking catalyst containing a modified molecular sieve and a preparation method thereof. In terms of 100% mass percentage, the catalyst contains 10-55% of the modified molecular sieve on dry basis, 10-80% of clay on dry basis, 0-40% of inorganic oxide in terms of oxide and 5-40% of a binder in terms of oxide. The modified molecular sieve is prepared by the method of: firstly dissolving a compound containing IIIB metal ions of the periodic table of elements in water or acid to form a solution, conducting mixing with a precipitating agent, an organic complexing agent and / or dispersant, and performing stirring for at least 10min to form III B element-containing precipitate; mixing the obtained precipitate with a molecular sieve slurry, and conducting stirring at 5-100DEG C for at least 10min so as to obtain a mixed slurry of the III B element-containing precipitate and the molecular sieve, and conducting spray drying and or without roasting. The catalyst disclosed by the invention has excellent activity stability and resistance to heavy metal pollution.

The present invention relates to an air-air heat exchanger choosing water and air as mixing working medium for refrigerating, which includes a refrigerating air pipeline and a cooling air pipeline. The refrigerating air pipeline is constituted by connecting the heat edge of a heat exchanging unit and a pipeline in series, the cold edge of the heat exchanging unit is connected to the cooling air pipeline. The differences between the two pipelines are that: the cooling pipeline is disposed with a water vapor atomizing chamber which is mounted with an atomizing nozzle connected to high pressure water source. The heat exchanging unit is plate fin heat exchanging unit disposed according to furcate-reverse flow heat exchanging mode. The cooling air pipeline is at negative pressure status. The present invention brings forward a design idea for refrigerating by choosing water and air as mixing working medium, the moisture absorption phase change step is design to be executed with high efficiency in the heat exchanger, and the medium transmission and heat transmission are synchronous, and good circulation is executed. The present invention is made as an air-air heat exchanger with high refrigerating function.

The invention provides an explosion-proof battery. The explosion-proof battery comprises: a box body and an explosion-proof box body connected with the box body; a battery module arranged in the box body, wherein a first area of the battery module comprises all electrodes in the battery module, and a second area of the battery module comprises all pressure release valves in the battery module; a first encapsulation layer covering the first area, wherein a first opening of the first encapsulation layer corresponds to the pressure release valve to make the pressure release valve exhaust air through the first opening; a second encapsulation layer which at least covers the second area to make the second encapsulation layer broken through when the pressure release valve is opened; a power supply control module arranged in the explosion-proof box body; and a first lead device arranged between the explosion-proof box body and the box body. According to the invention, the implementation cost and weight of a battery explosion-proof mechanism can be effectively reduced, and it is ensured that when an explosive environment occurs, except for the encapsulated battery module, other exposed conductors are not electrified, so that contact between an ignition source and explosive gas is blocked in time, and the economical efficiency and the explosion-proof control effect achieved by an explosion-proof mechanism are effectively improved.

The invention discloses a microbial fuel cell for nitrogen and phosphorus removal of a sewage treatment plant and a sewage treatment method. The microbial fuel cell comprises a nitrogen and phosphorus removal pool, the nitrogen and phosphorus removal pool is provided with a water inlet and a water outlet, and a nitrogen and phosphorus removal unit is arranged in the nitrogen and phosphorus removal pool; the nitrogen and phosphorus removal unit comprises an iron pole plate and a carbon felt which are sequentially arranged along the water flow direction in the nitrogen and phosphorus removal tank, a denitrification biological membrane is attached to the carbon felt, a collecting hopper and a sludge hopper are respectively arranged below the iron pole plate and the carbon felt in the nitrogen and phosphorus removal tank, and the iron pole plate is electrically connected with the carbon felt through a wire; and a resistor is connected in series on a lead connected between the iron polar plate and the carbon felt. According to the invention, nitrogen and phosphorus in the wastewater can be removed, the blue iron ore can be recycled, and the treatment target of combining wastewater treatment and resource recycling is achieved.

The invention relates to a dried tofu smoking apparatus, which comprises a smoking box, wherein a smoke generating furnace is arranged on one side of the smoking box, a buffer box is arranged on one side of the smoke generating furnace, a filtering box is arranged on one side of the buffer box, a buffer pipeline is arranged in the buffer box, an electric heating pipe is arranged on the lower end of the buffer box, an active carbon filtering layer is arranged in the filtering box, the filtering box is connected to the smoking box through an output pipeline, the output pipeline is provided witha temperature sensor, the signal sensed by the temperature sensor is transmitted to a controller, the controller controls the electric heating pipe, a C-shaped smoking pipeline is arranged inside thesmoking box, is uniformly provided with gas outlet holes, and is connected to the output pipeline, a dried tofu placing frame is arranged in the smoking box, and a gas outlet pipeline is arranged below the smoking box. According to the present invention, the dried tofu smoking apparatus has advantages of simple structure and reasonable and novel design, and can effectively perform smoking treatment on dried tofu, improve the smoking quality and the taste of dried tofu, and shorten the smoking time.

The invention relates to the technical field of X-ray tubes, and discloses a reflective X-ray tube cooling mechanism. The reflective X-ray tube cooling mechanism comprises a glass cover, an anode target and a cooling cover, wherein the top end of the glass cover is provided with an expansion cover at the position corresponding to the anode target, the expansion cover is located in the cooling cover, and a heat conduction crystal evaporated by heating is placed at the inner bottom of the expansion cover. According to the invention, the top end of the glass cover is provided with the expansion cover at the position corresponding the anode target in the cooling cover, the heat conduction crystal is placed at the inner bottom of the expansion cover, the characteristic that thermal decomposition of the heat conduction crystal is reversible reaction is utilized, the heat generated by the anode target is absorbed, the gas generated by thermal decomposition of the anode target rises to an upper space in the expansion cover, is cooled by circulating water in the cooling cover and then is subjected to chemical combination reaction for crystallization, and the circulation can diffuse the heatdissipation area to the surface of the whole expansion cover on the basis of the original heat dissipation area, so that the heat dissipation area can be greatly increased.

The invention provides an explosion-proof battery power supply, which comprises a box body, an explosion-proof box body, a battery module, a first encapsulation layer and agas treatment device; a first area of the battery module in the box body comprises all the electrodes, and a second area comprises all the pressure release valves; the first encapsulation layer covers the first area, and first openings of the first encapsulation layer correspond to the pressure release valves, so that the pressure release valves can exhaust air through the first openings; and the gas treatment device is arranged in the box body and is used for treating gas released in the thermal runaway process of the battery module. A gas treatment mechanism is realized by adopting the gas treatment device, so that theinfluence of gas released by thermal runaway of the battery on the peripheral environment of the box body is effectively reduced, the overall application safety of the explosion-proof battery power supply is improved, the realization cost and weight of the battery explosion-proof mechanism are effectively reduced, and the explosion-proof battery power supply is ensured to be not damaged except the encapsulated battery module when an explosive environment occurs. other exposed conductors except the encapsulated battery module are not electrified when an explosive environment occurs, so that the contact between an ignition source and explosive gas is blocked in time, and the economy and the explosion-proof control effect of an explosion-proof mechanism are effectively improved.

The invention discloses a water heater producing hydrogen water. The water heater producing hydrogen water comprises a water inlet pipe, a water outlet pipe, an inner liner, a heating mechanism, a water flushing opening and a water retaining plate. At least one of the water inlet pipe, the water outlet pipe, the inner liner, and the water retaining plate of the water heater is provided with a hydrogen water generating device which reacts with water to generate the hydrogen. According to the water heater producing hydrogen water, hydrogen generating devices are arranged in many places, reactionwith water can generate a large amount of hydrogen, hydrogen is promoted to be generated and dissolved in water to generate hydrogen water through heating and water pressure exerting of the water heater, the hydrogen water plays an antioxidant role, user experience can be improved, magnesium hydroxide can further be generated along with the hydrogen, and magnesium hydroxide can absorb scale and heavy metals produced in the inner liner.

The invention discloses an overheating protection device for a wireless charger. The device comprises a machine body; a base is arranged at the bottom of the machine body; a plug is arranged at the lower end surface of the base; the upper end face of the base is matched with the lower end face of the machine body; the lower end face of the machine body is provided with a connector; the connector can make contact with the plug; and therefore, the device can be disconnected from a household circuit in time, the situation that the circuit is open circuited is avoided, major accidents are avoided,the internal parts of the device can be protected, and the service life of the device is prolonged.

The invention discloses a radar level meter. The radar level meter comprises a radar level meter body, a mounting flange is fixedly arranged in the middle of the radar level meter body; a plurality ofmounting holes are formed in the top end of the mounting flange; the plurality of mounting holes are respectively in threaded connection with the bottoms of the corresponding vertical rods; the topsof the plurality of vertical rods are respectively connected with the corresponding sleeves in a clamping manner; the top ends of the four sleeves are fixedly connected with the bottom end of a supporting plate. A protection structure is arranged at the top of the supporting plate. By arranging the mounting holes, the vertical rods, the supporting plates and the sleeves, the vertical rods can be screwed into the mounting holes; by arranging the supporting plate, the boss, the compression spring, the top plate, a drainage chute and a drainage pipe, when foreign matter falls onto the top plate to extrude a compression spring, the compression spring jacks up the top plate, the foreign matter can be bounced off, and rapid drainage can be achieved in rainy days.

The invention discloses an organic fertilizer fermentation stirring device, and relates to the field of organic fertilizer production, the organic fertilizer fermentation stirring device comprises a main body, the top end of the main body is provided with a frame mechanism, the inner wall of the frame mechanism is provided with a driving mechanism, and the interior of the frame mechanism is provided with a wetting mechanism at one side of the driving mechanism. By arranging the frame mechanism and the driving mechanism, during stirring, the driving motor is firstly started, the output end of the driving motor drives the first gear to rotate, the first gear pulls the first belt connected with the outer wall to rotate, the first belt pulls the driving shaft to rotate, and the driving shaft drives the second gear connected with the end part to rotate; the second gear pulls the second belt on the outer wall to rotate, and the second belt pulls the stirring mechanism to rotate so that thea rotating ring is conveniently separated from the driven shaft, the output of the driving motor is not loaded to a moving wheel, the frame mechanism can be stopped in time, the use efficiency is improved, and the problem that the efficiency of the moving mode is not high is effectively solved.

The invention relates to a copper conductor tube. The copper conductor tube comprises a copper guide column and a plurality of heat dissipating aluminum plates; the heat dissipating aluminum plates are arranged in the middle of the copper guide column in a bilateral symmetry manner; the contact portions between the heat dissipating aluminum plates and the copper guide column are filled with heat conduction materials; and the distances between two adjacent heat dissipating aluminum plates are equal. In the use process of the copper conductor tube, due to the fact that heat conduction performance of copper is better than that of aluminum, the copper guide column can conduct heat released by led lamps rapidly; meanwhile, in the mounting process of the heat dissipating aluminum plates, the tension effect is achieved, and the heat dissipating aluminum plates are made to be in tight contact with the copper guide column, the contact portions of the heat dissipating aluminum plates and the copper guide column are filled with heat conduction materials, and heat of the copper guide column can be conducted to the heat dissipating aluminum plates in time to be in contact with air o be dissipated; and the copper conductor tube is good in heat dissipating effect, and the service life of the lamp is prolonged.

The invention discloses a method for preparing polypeptide drug microspheres based on subliquid airflow spraying technology, which comprises the following steps: (1) dissolving polypeptide water-soluble drugs in water to obtain an inner water phase drug solution; dissolving carrier materials in In an organic solvent, an oil phase polymer solution is obtained; (2) the oil phase polymer solution is added to the internal water phase drug solution, ultrasonically crushed or shear dispersed to form a primary emulsion; (3) the primary emulsion is transported to The liquid inlet of the airflow nozzle located at the bottom of the liquid drying tank, and the gas inlet of the airflow nozzle is opened at the same time to atomize the primary emulsion, and the nozzle opening of the airflow nozzle is sprayed into the liquid from bottom to top into the liquid drying tank. In the aqueous solution of the agent, start the stirring while spraying the primary emulsion to form a double emulsion, and then dry it in the liquid at 15-25°C for 3-5 hours to remove the organic solvent, and obtain the polypeptide drug microspheres. The microspheres produced by the invention have high encapsulation efficiency, spheroidization rate and high production efficiency.

The invention relates to a catalytic cracking catalyst containing a modified molecular sieve and a preparation method thereof. In terms of 100% mass percentage, the catalyst contains 10-55% of the modified molecular sieve on dry basis, 10-80% of clay on dry basis, 0-40% of inorganic oxide in terms of oxide and 5-40% of a binder in terms of oxide. The modified molecular sieve is prepared by the method of: firstly dissolving a compound containing IIIB metal ions of the periodic table of elements in water or acid to form a solution, conducting mixing with a precipitating agent, an organic complexing agent and / or dispersant, and performing stirring for at least 10min to form III B element-containing precipitate; mixing the obtained precipitate with a molecular sieve slurry, and conducting stirring at 5-100DEG C for at least 10min so as to obtain a mixed slurry of the III B element-containing precipitate and the molecular sieve, and conducting spray drying and or without roasting. The catalyst disclosed by the invention has excellent activity stability and resistance to heavy metal pollution.

The application discloses a foot health-preserving device, which relates to the field of health-preserving equipment, and includes: a barrel body, which has a housing cavity for containing granular or powdery solid media; a rotating disc, which is rotatably connected to the housing In the chamber, the rotating disk has a plurality of through holes for the solid medium to be accommodated; the driving part is arranged on the barrel to drive the rotating disk to rotate so that the through holes drive the solid medium to move. By setting the rotating disk and the through hole, the rotation of the rotating disk can massage the sole of the foot, and at the same time, the solid medium in the through hole follows the movement of the rotating disk to polish the sole of the foot. More thorough cleaning of dead skin and other stratum corneum.

The invention belongs to the technical field of sample preservation, and discloses sputum sample preservation equipment in pathological diagnosis for infectious disease research, which comprises a sealing box, a sealing plate is movably hinged to the side surface of the sealing box, a sealing cover is fixedly connected to the top of the sealing box through a bolt, and a low-temperature shaft is movably connected to the bottom of the inner cavity of the sealing box. And the top of the low-temperature shaft is fixedly connected with a connecting shaft. Through the sealing box, the sealing plate, the sealing cover and the low-temperature shaft, the interior of the sealing box can be of a sealing structure under the cooperation of the sealing box, the sealing plate and the sealing cover, a worker can conveniently and rapidly take out part of sterile pipes through the sealing plate, and loss of low-temperature gas in the sealing box can be reduced; the sterile pipes are evenly distributed on the periphery of the low-temperature shaft, so that loss of low-temperature airflow of the low-temperature shaft during flowing can be avoided, and it is ensured that low-temperature gas overflowing out of the low-temperature shaft makes contact with all the sterile pipes in time.

The invention discloses a novel biological desulfurization device for biogas. The novel biological desulfurization device for the biogas comprises a desulfurization tower, wherein the upper end of thedesulfurization tower is in through connection with an air inlet pipe and a nutrient solution delivery pipe, a sealing cylinder fixedly sleeves the end, located in the desulfurization tower, of the air inlet pipe, a movable sealing plate is hinged to the top wall of the sealing cylinder, and the sealing plate is slidably connected with the inner side wall of the sealing cylinder. The novel biological desulfurization device for the biogas has the advantages that an oxygen balance device is added, and through the arrangement of the oxygen balance device, the action of the content of oxygen in the desulfurization tower can be automatically adjusted according to the content of the oxygen in the desulfurization tower, thereby being capable of achieving the effect of saving time and labor; a control device is added, so that when the gas enters the desulfurization tower, the control device can control a delivery pump to work to ensure that gas entering and nutrient solution transporting arecarried out simultaneously, thereby achieving the effect of saving resources.

The invention relates to a fuel gas cutting torch with catalytic combustion. The fuel gas cutting torch comprises a cutting torch core (1), a catalyst bed layer (9) and a cutting torch fairing (11); the cutting torch core is divided into a head part (3) with a step and a body part (7), the head part is provided with a circle of preheating oxygen inlet holes, a fuel gas inlet hole (5) and a cutting oxygen inlet hole (2) penetrating through the body, the body part is provided with a groove (8), and the catalyst bed layer is fixed between the groove and the cutting torch fairing. Mixed gas of oxygen and fuel gas passes through the catalyst bed layer from a mixed gas hole (6) and is sprayed out from a split groove (10). According to the fuel gas cutting torch, as the catalyst bed layer is installed, mixed gas flow flows through the catalyst bed layer and is catalyzed through catalysts, so that performance of the mixed gas flow is improved, temperature of combustion flame is increased, cutting preheating time is shortened, and the usage amount of the fuel gas is reduced.

The invention discloses an evaporator and a refrigeration system. The evaporator comprises a hollow cylinder and a heat exchange tube. The hollow cylinder is horizontally arranged, and a first liquidinlet, a first air outlet, a second liquid inlet and a second liquid outlet are formed in the end surface of the cylinder; and the two ends of the heat exchange tube are separately connected to the second liquid inlet and the second liquid outlet. The refrigeration system includes a compressor, the evaporator, a condenser with an idle area and a throttling device. When the evaporator is assembledwith the compressor and the condenser, since the first liquid inlet and the first air outlet are both formed in the end surface of the cylinder, the compressor and the evaporator are horizontally disposed; the compressor and the evaporator are both installed in the idle area in a condenser shell, the evaporator, the compressor and the condenser are assembled in one shell, so that the size of the refrigeration system is the size of an original condenser, and the height is only the original size of the condenser; the entire refrigeration system is compact in structure, and the occupied space issmall; and meanwhile, the refrigeration system can further be moved conveniently.

The invention relates to an air-air heat exchanger for refrigeration using water and air as a mixed working medium, which includes a cooling air pipeline and a cooling air pipeline, and the cooling air pipeline is composed of a heat exchange unit hot side and a pipeline The heat exchange unit is connected in series, and the cold side of the heat exchange unit is connected in the cooling air pipeline. The spray nozzle is connected to the high-pressure water source. The heat exchange unit is a plate-fin heat exchange unit, which is installed in a fork-countercurrent heat exchange manner; the cooling air pipeline is in a negative pressure shape. The present invention proposes the design concept of using water and air as the mixed working medium for refrigeration, and the hygroscopic phase change link is designed to be carried out in the heat exchanger with high efficiency, and achieves mass transfer and heat transfer synchronization and a virtuous cycle. The present invention becomes an air-air heat exchanger with higher refrigeration efficiency.

The invention relates to the technical field of electric vehicle anti-theft, and discloses an electric vehicle anti-theft positioning device based on the Internet of Things technology, which comprisesan anti-theft box; a buffer mechanism is arranged on the inner wall of the anti-theft box; a first transverse plate is arranged on the inner wall of the buffer mechanism, and a second transverse plate is arranged on the inner wall of the buffer mechanism and located above the first transverse plate. An anti-theft mechanism is arranged at the top of the anti-theft box, a control mechanism is arranged on the bottom wall of the interior of the anti-theft box, a signal transmitter is fixedly installed on the lower surface of the second transverse plate, a pressing rod is fixedly connected to theupper surface of the first transverse plate, and a buzzer is fixedly installed on the rear side, away from the pressing rod, of the upper surface of the first transverse plate. A positioning mechanismis arranged on the upper surface of the first transverse plate. According to the electric vehicle anti-theft positioning device based on the Internet of Things technology, a vehicle owner can find the position in time and know the position of a storage battery body through the positioning mechanism, so that the storage battery finding probability is improved, and the loss of a vehicle owner is reduced.

The invention discloses an anti-extrusion packing box for a cultural and creative product, the packing box is structurally provided with a loading box body, an outer packing box, a cover box and a buckling plate, the cover box and the outer packing box are of an integrated structure, the loading box body is fixedly connected to the outer packing box, the buckling plate and the cover box are of an integrated structure, and the buckling plate is attracted to the front side of the loading box body; the loading box body is provided with a frame plate, a placing groove, an anti-extrusion device and a sponge pad, the frame plate is fixedly connected to the outer wrapping box, the movable body penetrates through the front plate to move under the telescopic cooperation of a guide frame, the toughness of a swing block is changed, a swing plate is folded to enable the collision and pressing ball to be driven to roll, the swing and folding angle of the swing plate is increased, and the deformation state of the swing block is larger; the expansion and contraction ball is extruded, the body is conveniently driven to penetrate and displace, the supporting and unfolding force is provided for an abutting device, the body is conveniently driven to drive the abutting device to displace so as to flexibly change the touch pressure on the product, soft touch pressure stabilizing force is provided for the cultural and creative product when the cultural and creative product is placed, and the cultural and creative product is prevented from being damaged due to hard extrusion.