235 results about "Refrigerated temperature" patented technology

The invention discloses an efficient and lasting multifunctional refrigerator deodorant which comprises the following components: (a) 50-85wt% of a porous adsorption material with a high specific surface area; (b) 5-30 wt% of a catalyst capable of effectively catalyzing and decomposing organic odor molecules in a low-temperature environment of 0-10 DEG C; and (c) 3 to 15 weight percent of long-acting slow-release type broad-spectrum antibacterial agent. According to the efficient and lasting refrigerator deodorant and the preparation method thereof, the dual effects of physical adsorption and low-temperature catalytic decomposition are utilized, multiple types of peculiar smell molecules can be rapidly adsorbed and thoroughly decomposed, and the deodorization efficiency is remarkably higher than that of a single adsorbent; the service life is greatly prolonged and is 3-5 times that of common activated carbon, the food decay speed is reduced, the food fresh-keeping period is indirectly prolonged, and food safety is guaranteed. The use process is safe and reliable, the use is convenient, external conditions such as illumination and heating are not needed, the device can be directly placed in a refrigerator, the replacement frequency is reduced due to long-term effect, and the comprehensive use cost is low.

The invention discloses a method for efficiently depolymerizing waste PET polyester at low temperature, which comprises the following steps of: dissolving a cleaned and dried PET material with a good solvent, and distilling to recover the solvent after the PET material is completely dissolved, so as to obtain a PET sample; mixing the treated PET sample with a catalyst, ethylene glycol and a cosolvent, putting the mixture into a pressure-resistant reaction tube, stirring and reacting for a certain time at a specific temperature, and then ending the reaction; carrying out reduced pressure distillation on the reaction liquid to recover the cosolvent; stirring the residual solution in hot water for a certain time, performing hot filtration, washing and drying filter residues with hot water, refrigerating filtrate in a refrigerator, filtering, collecting solids, and drying to obtain the product. The method has the advantages of simplicity in operation, low reaction temperature, high reaction rate, no metal ions and the like, and can realize green and efficient recovery of waste polyester; the method can be applied to the fields of polyester fibers, bottle flakes, films and the like, and has relatively high industrial feasibility and application prospects.

The present invention provides a food ripening control method and a refrigerator, the food ripening control method comprising: controlling an electric damper to open, controlling a humidifying device to start, controlling a variable frequency fan to start, obtaining an initial weight of the food to be ripened and a first weight after a first preset time, and calculating a weight change rate; comparing the weight change rate with a preset weight change rate, and adjusting a humidity value and a wind speed in a ripening chamber according to the comparison result; obtaining a second weight of the food to be ripened at a second preset time interval, and calculating a water evaporation rate according to the second weight and the initial weight; and adjusting the humidity value and wind speed in the ripening chamber according to the evaporation rate using a preset module adapted to the evaporation rate; judging the thickness of the food by obtaining the weight change rate within a preset time, and then adjusting the wind speed and humidity, and adjusting the wind speed and humidity at different ripening stages of the food to solve the problem that adjusting the wind speed according to the water evaporation rate easily causes the food to dry too fast or too slow, thereby affecting the taste of the food.

A tag includes: a temperature indicating material; and an identifier that presents identification information uniquely identifiable by appearance. A control method includes: capturing, with a camera, an image of a first food item that is a food item to be stored, or a food item stored, in an interior of a refrigerator to generate the image showing the tag, the tag being attached to the first food item; obtaining a temperature of the first food item by analyzing a color of the temperature indicating material included in the tag shown in the image generated; and generating control information to control cooling of the interior of the refrigerator by comparing the temperature obtained with an appropriate temperature range for the interior of the refrigerator, and transmitting the control information generated to the refrigerator.

To provide an electric turbomachine for a freezer that comprises a heat insulating mechanism for suppressing heat input from a motor to a refrigerant flowing in a refrigerant flow path of a turbine, and has a high degree of freedom in designing a structure for fixing a stationary vane.SOLUTION: An electric turbomachine for a freezer comprises a motor and a turbine connected to the motor via a rotational shaft. The turbine includes a stationary vane provided upstream of a turbine wheel in a refrigerant flow path. A casing includes a partition part configured to partition the motor and the refrigerant flow path of the turbine. The partition part is provided with a heat insulating mechanism, and the stationary vane is fixed to a shroud-side flow path wall part.SELECTED DRAWING: Figure 2

The invention discloses constant-temperature curing and loading integrated test equipment for preparation of mixing piles, and relates to the technical field of preparation of mixing piles, and the constant-temperature curing and loading integrated test equipment comprises a refrigerator, a constant-temperature device, a loading device and a multi-angle mixing pile preparation device. According to the constant-temperature curing and loading integrated test equipment for preparing the stirring pile, through coordination of heating and refrigerating, the temperature control precision of a conventional refrigerator is improved, and the uniformity of a temperature field in the refrigerator is guaranteed; the whole process from pile manufacturing, maintenance to loading is completed in the same constant-temperature space, interference caused by process conversion is eliminated, finally, the reinforcing process and effect of the inclined cement-soil mixing pile in the high-temperature frozen soil roadbed are accurately simulated, and test errors caused by temperature fluctuation and process separation in a traditional method are avoided; by quickly adjusting the angle of the stirring rod and selecting different spray hole combinations, one device can simulate various construction processes, different scientific research and test requirements are met, and the flexibility in use is improved.

The invention relates to the field of advanced flame-retardant aerogel materials, in particular to a flame-retardant heat-insulating nano-cellulose composite aerogel material, a preparation method and application. The preparation method comprises the following steps: S1, dispersing inorganic nanosheets, a nanocellulose solution and sodium alginate in water, and stirring to obtain a mixed solution; the mass ratio of the inorganic nanosheets to the nanocellulose solution to the sodium alginate to the deionized water is (0-5): (50-100): 2: 98; s2, slowly pouring the mixed solution into a mold, putting the mold into a refrigerator for freezing, after a sample is completely frozen, putting the sample into a surface active solvent, and adding metal chloride and a cellulose cross-linking agent into the solvent at the same time; then sodium alginate ion crosslinking and cellulose crosslinking are carried out under the condition of subzero; the mass ratio of the metal chloride to the cellulose cross-linking agent to the surface active solvent is (0.5-1.1): (1-2): 200; and then putting the mixture into a blast oven for normal-temperature and normal-pressure drying to obtain the flame-retardant and heat-insulating nano-cellulose composite aerogel material.

The invention relates to the technical field of biological preservation, in particular to a refrigerator food material preservation method and system based on a multi-modal decision dynamic weight mechanism, and the method comprises the steps: collecting multi-modal characteristic data of food materials; constructing a dynamic weight attention mechanism, and dynamically adjusting the fusion weight of each modal feature; combining a GNN graph neural network to construct a food material spoilage correlation graph, and outputting a spoilage risk prediction value at a t moment; an optimal fresh-keeping strategy combination is generated through multi-objective optimization; and processing real-time disturbance by adopting a model predictive control method and outputting a cooperative control signal. According to the method, the dynamic weight attention mechanism based on the food material category and the storage state is constructed to realize adaptive weight fusion of temperature, humidity, gas, weight and vision sensor modalities, so that the time sequence adaptability, the category specificity and the response sensitivity of multi-modal fusion are improved; and the contribution degree of the key sensor can be adaptively enhanced by the system in different scenes, and the corruption risk prediction precision is remarkably improved.

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) composite material and belongs to the technical field of composite material preparation. The ABS composite material comprises ABS, a flame-retardant noise-reducing filler and a silane coupling agent, the flame-retardant and noise-reducing filler is salix mongolica fiber loaded with UiO-66; the flame-retardant and noise-reducing filler is prepared by the following steps: weighing salix psammophila fibers, ZrCl and terephthalic acid, adding the materials into dimethylformamide, performing ultrasonic treatment to uniformly disperse the materials, then stirring and refluxing for a certain time in a nitrogen atmosphere at a certain temperature, washing to remove unreacted ligands and metal ions, and drying for a certain time to obtain the flame-retardant and noise-reducing filler. The invention is applied to the aspects of flame retardance and noise reduction of refrigerators, solves the problem that the existing salix psammophila fiber cannot be used as a flame-retardant and noise-reduction material for refrigerators due to the flammable characteristic, and has good flame-retardant and noise-reduction performance.

Provided is an automated analyzer comprising a reagent cooler such that it is possible to cool the entire interior of the reagent cooler with one refrigeration device while also preventing condensation in the reagent cooler.　This automated analyzer comprises: a reagent cooler that cools a plurality of reagent containers; a heat pipe that is provided inside the reagent cooler and cools the interior of the reagent cooler; a cooling device that cools the heat pipe; a dehumidification pipe that conveys air from the exterior of the reagent cooler and discharges the same from an end thereof into the reagent cooler interior, at least one section of said dehumidification pipe being in contact with or in the vicinity of the heat pipe; and a first drain that drains, to the exterior of the reagent cooler, condensation water which drains from the end of the dehumidification pipe.

The application provides a refrigerator control method and a refrigerator. The refrigerator comprises a cabinet, a storage space and a freezing space arranged below the storage space are defined in the cabinet, a compressor and a fan are arranged in the freezing space, the compressor is used for refrigeration, and the fan is used for refrigeration for the storage space in cooperation with the compressor. The control method comprises the following steps: acquiring an ambient temperature and a stop time of the compressor; acquiring a corresponding time threshold according to an interval in which the ambient temperature is located; if the stop time of the compressor is greater than the time threshold, the compressor and the fan are started; if a current temperature of the storage space is less than a temperature threshold, the fan is controlled to stop; and the compressor is controlled to stop after a preset time. According to the ambient temperature and the stop time of the compressor, the application controls the start and stop of the compressor and the fan, so that the freezing space also reaches a target temperature at a lower ambient temperature.

The application relates to a cold quantity distribution method and device, a refrigeration equipment and a computer readable medium. The method comprises the following steps: calculating the current refrigeration demand and freezing demand of the refrigeration equipment; determining a target cold quantity distribution strategy according to the refrigeration demand and the freezing demand; controlling the operation states of the refrigeration circuit and the freezing circuit respectively according to the target cold quantity distribution strategy, and controlling the on-off of the bypass pipeline according to the target cold quantity distribution strategy, so that the refrigeration evaporator in the refrigeration circuit is reused as an auxiliary condenser of the freezing circuit through the bypass pipeline, or the cold quantity of the freezing circuit is supplemented to the refrigeration circuit through the bypass pipeline, so that the cold quantity is distributed according to the actual demand of the refrigeration equipment. The application controls the operation states of the refrigeration circuit and the freezing circuit, and adjusts the on-off of the bypass pipeline between the two, so as to schedule the cross-circuit cold quantity, realize on-demand distribution of the cold quantity, and solve the technical problem that the cold quantity distribution of the existing refrigerator cannot adapt to the real-time demand of each temperature zone.

The invention provides a refrigeration equipment control method and device, a refrigerator and a computer readable storage medium. The method comprises the steps that a target freshness index of target food in a food storage bin is obtained; determining the index change speed of the target freshness index according to the target freshness index; and if the index change speed is greater than or equal to a preset speed change threshold value, adjusting operation parameters of the antibacterial equipment so as to reduce the decay speed of the target food. According to the refrigeration equipment control method, the target freshness index of the stored target food can be obtained firstly, and the index change speed of the freshness of the target food is determined according to the freshness index, so that the decay speed of the target food is determined. And if the decay speed of the target food is high, the operation parameters of the antibacterial equipment arranged in the refrigeration equipment can be adjusted, then the activity of microorganisms in the refrigerator is reduced, the decay speed of the food is reduced, and compared with pure temperature and humidity preservation, the food preservation effect is improved.

This application provides a refrigerator. The refrigerator includes a housing provided with at least one magnetic field preservation chamber, a magnetic field generating device for generating a magnetic field within the storage space of the magnetic field preservation chamber, and a cooling system for cooling the magnetic field preservation chamber. The magnetic field generating device is configured to set the magnetic field strength inside the storage space in the range of 10 gauss to 100 gauss, and the cooling system is configured to set the temperature inside the storage space in the range of -10°C to 0°C, or the magnetic field generating device is configured to set the magnetic field strength inside the storage space in the range of 5 gauss to 40 gauss, and the cooling system is configured to set the temperature inside the storage space in the range of -30°C to -15°C. This makes it possible to refrigerate food at sub-zero temperatures, or to reduce the formation of large ice crystals inside when freezing food, thereby improving preservation effectiveness.

A complex ester of a divalent carboxylic acid, a divalent alcohol, and at least one selected from a monohydric alcohol and a monocarboxylic acid, wherein the divalent alcohol consists of a branched divalent alcohol having no quaternary carbon.

The invention discloses an anti-freezing method for an electric air door of a refrigerator. The anti-freezing method comprises the following steps: S1, entering a defrosting mode; s2, the defrosting heater is started in the whole process; s3, hot air started by the defrosting heater is blown to a refrigeration air inlet; s4, after the defrosting heater is started for the time t1, the freezing fan is started for the time t2, and fins of the whole defrosting heater are heated more uniformly by starting the freezing fan for the time t2; s5, after the freezing fan is shut down, the electric air door is reset once, by resetting the electric air door once, the water defrosted by the defrosting heater fins cannot stay at the air door, and after refrigeration, the water at the air door is frozen; s6, whether the current defrosting sensor temperature A is larger than or equal to T DEG C or not is judged, and if yes, the defrosting mode is quitted; s7, if not, the freezing fan is started for the time t4 after the time t3; and S8, after the freezing fan is shut down, the electric air door is reset again, circulation is conducted in sequence till the temperature of the defrosting sensor A is larger than or equal to T DEG C, and the defrosting mode is quitted.

A soda carbonation and dispensation system and method are provided. The system includes a carbonated water pump and motor assembly operable to draw fresh water into carbonator tanks and circulate the water through a chiller system. A carbon dioxide source is connected to the carbonator tanks to produce carbonated water. The system also includes a water level sensor connected to a controller, a plurality of syrup containers, a syrup pump, syrup regulator valves, a brix capacitor, a dispensing tower and faucets connected to the dispensing tower housing. The controller operates the water pump and motor assembly to maintain a water level within a predetermined range and to maintain continuous flow and refrigeration of the carbonated water, which optimizes carbonation. The brix capacitor receives chilled carbonated water and chilled syrup in separate lines. Carbonated water is circulated to the faucets through a manifold in the brix capacitor and then circulated back into the carbonator tanks. Valves are provided in the brix capacitor to manipulate carbonated water and syrup flow rates and pressures into the faucets. The system maintains the carbonated water and syrup at a refrigerated temperature and a predetermined maximum pressure. When a faucet is opened, the carbonated water and syrup mix as they flow laminarly into a container. The result is consistently optimum carbonation when the beverage is dispensed.

The invention discloses a chitosan aerogel preparation method based on directional freezing mold design and freezing temperature regulation, designs a directional freezing device and a directional freezing mold of aerogel, and prepares chitosan aerogel at different freezing temperatures (a refrigerator:-15 DEG C, a freeze dryer:-45 DEG C, dry ice / ethanol:-78 DEG C, and liquid nitrogen:-196 DEG C). The directional freezing device designed by the invention consists of a container for containing refrigerants (dry ice / ethanol and liquid nitrogen) with different temperatures, a heat-conducting brass plate, a directional freezing mold and a temperature display capable of monitoring the temperature in real time, wherein the directional freezing mold is made of polytetrafluoroethylene and brass. Proved by comparison and embodiments, by adopting the directional freezing device disclosed by the invention, the pre-freezing temperature is regulated and controlled, and the chitosan aerogel with lower density, low thermal conductivity, high porosity and excellent mechanical properties is prepared.

The invention discloses a preservation method of an implant exosome, which comprises the following steps: mixing an implant exosome sample with a buffer solution, adding an antioxidant, cooling to 4 DEG C in a program-controlled cooling instrument, and keeping the temperature for 1.5-2.5 hours; adding a freeze-drying protective agent and an antioxidant, uniformly mixing, cooling to-20 DEG C in a program-controlled cooling instrument, and keeping the temperature for 1.5-2.5 hours; adding a freeze-drying protective agent and an antioxidant, uniformly mixing, cooling to-80 DEG C in a program-controlled cooling instrument, and keeping the temperature for 1.5-2.5 hours; and finally, adding arginine, subpackaging into cryopreservation tubes, and storing in a refrigerator at-80 DEG C for a long time, or directly storing in a liquid nitrogen tank. The integrity and biological activity of the plant-derived exosome can be effectively maintained, and the preservation time of the plant-derived exosome is prolonged.

To provide a household refrigerator that can store food while suppressing chilling damage and maintaining its quality. [Solution] In this embodiment, the household refrigerator 1 has a control unit 45 that repeatedly performs a refrigeration cooling operation to cool the refrigerated storage compartment and a freezing cooling operation to cool the freezer compartment, while repeatedly performing a cooling and preservation operation to adjust the refrigerated storage compartment to a first temperature above the freezing point, and a recovery operation to adjust the refrigerated storage compartment to a second temperature higher than the first temperature to recover from low-temperature damage to food. The control unit performs such a procedure that the total time for performing one cooling and preservation operation and one recovery operation is longer than the total time for performing one refrigeration cooling operation and one freezing cooling operation.

By extending the lifespan of the refrigeration unit and reducing the frequency of replacement, the operating rate of the MRI system will be improved. [Solution] The cold head life extension mode is implemented. In the cold head life extension mode, the refrigerator's displayer is operated at a constant frequency lower than a predetermined upper frequency, regardless of the temperature of the superconducting coil, and the compressor inverter controls the drive frequency of the compressor drive unit according to the temperature of the superconducting coil.

The invention provides a control method and device of a refrigerator, the refrigerator and a storage medium, a refrigerating system of the refrigerator comprises a compressor, a condenser, an anti-dew pipe and a switch piece, the anti-dew pipe is connected to a connecting pipeline between the compressor and the condenser in parallel, the switch piece is connected with the anti-dew pipe, and the switch piece has a first state in which a refrigerant flows through the anti-dew pipe; in the second state, flowing of the refrigerant in the anti-dew pipe is stopped; the control method comprises the steps that the current environment temperature and environment humidity are obtained; determining a target humidity value according to the environment temperature; when the environment humidity exceeds the target humidity value, the switch piece is controlled to be switched to a first state; and when the environment humidity is lower than or equal to the target humidity value, the switch piece is controlled to be switched to the second state. According to the refrigerator, the target humidity value is dynamically adjusted according to the environment temperature, the condensation risk degree is determined by comparing the current environment humidity with the target humidity value, the anti-condensation pipe only works when the condensation risk is high, and the energy-saving effect is achieved.

The utility model discloses a vehicle-mounted refrigerator refrigeration compressor sealing piece which comprises a sealing gasket body, grooves are formed in the two sides of the top of the sealing gasket body, springs are fixedly connected to the two sides of the bottoms of inner cavities of the grooves, convex blocks are fixedly connected to the tops of the springs, and an upper sealing gasket body is fixedly connected to the tops of the convex blocks. Through the heat-resistant layer, the elastic layer and the corrosion-resistant layer, glass fibers are large in tensile strength and good in heat resistance, the tensile strength and the heat resistance of the sealing gasket are improved, the sealing property of the sealing gasket cannot be reduced due to the fact that the sealing gasket is affected by high temperature, the polyurethane fiber layer has good rebound resilience, the elasticity of the sealing gasket is improved, and the service life of the sealing gasket is prolonged. The fluororubber layer has excellent oil resistance, acid and alkali resistance, oxidation resistance and solvent resistance and can be used for a long time in a high-temperature and severe chemical environment, and the three functional layers greatly prolong the service life of the sealing gasket of the refrigeration compressor.

To provide a refrigerator that can improve the accuracy of freshness determination of food using a fluorescent phenomenon of the food.SOLUTION: A refrigerator comprises: a refrigerator body in which a storage chamber internally adjusted in a refrigerating temperature zone is formed; a partition member for partitioning a space in the storage chamber into a first space, and a second space arranged on the lower side of the first space; light application means for applying light of a specific wavelength capable of exciting fluorescence of food in the first space, to the food; light detection means for detecting light of the wavelength of the fluorescence emitted by the food in the first space; a determination unit for determining the freshness of the food in the first space on the basis of a detection result of the light detection means; and light inhibition means 19 for inhibiting the light of the specific wavelength applied from the light application means, from penetrating the partition member and reaching the second space.SELECTED DRAWING: Figure 2

The application provides a wind-cooled refrigerator and a control method thereof, the wind-cooled refrigerator comprising a chamber, a door body, a refrigeration system, a controller, a temperature sensing device and an anti-freezing device; the controller is electrically connected with the refrigeration system, the temperature sensing device and the anti-freezing device respectively; the temperature sensing device is a temperature sensor; the anti-freezing device comprises an anti-condensation pipe main stem, an anti-condensation pipe branch stem and a valve, and is fixed between an inner container and a shell of the refrigerator. The application utilizes the temperature sensing device to sense the temperature of the water pipe, displays through a water pipe temperature indicator, when the temperature of the water pipe is greater than a preset water pipe temperature, the water pipe temperature indicator is green, when the temperature of the water pipe is less than the preset water pipe temperature, the water pipe temperature indicator is red, the controller controls the valve of the anti-condensation pipe branch stem to open, the refrigerant flows in the anti-condensation pipe branch stem, the temperature of the surface of the water pipe is increased, and the temperature of the water in the water pipe is increased. It is intelligent, reduces the humidity in the refrigeration chamber, and improves the service life of the refrigerator.

A partial-freezing meat fresh-preservation control method, a controller and a refrigerator are provided. The control method includes: S1 (101), acquiring a current temperature of meat food in a compartment of a refrigerator in real time; S2 (102), judging whether the current temperature of the meat food is greater than or equal to a first temperature threshold t0, and if yes, performing S3 (103); S3 (103), controlling the compartment to perform a cooling operation; S4 (104), judging whether the meat food is frozen during the cooling operation, and if yes, performing S5 (105), S5 (105), starting timing once the freezing occurs, and performing S6 (106) after the timing reaches a first preset time period; S6 (106), controlling the compartment to perform a heating operation; wherein, after the performance of the step S6 (106) is completed, the performance of the step S1 (101) is continued. The partial-freezing fresh-preservation control method provided by the embodiment of the present disclosure can maintain the meat food in a fresh and easy-to-cut state for a long time, and make up for the technical gap in the field.

This invention discloses a low-temperature storage device for icy acid swabs and a method for preparing icy acid swabs. The device includes a box with a cavity inside, and a partition separating the cavity into a first chamber and a second chamber. A container is located within the first chamber, with a cover plate pressing against its top. A liquid storage tank is located within the second chamber, containing a storage cavity. A first through-hole is located at the top of the storage tank, allowing access to the storage cavity. A sealing plate is located above the storage tank, pressing against its top. An elastic element is also included, with one end connected to the partition plate and the other end connected to the sealing plate. A connector is located at the top of the sealing plate, with its top extending outside the box. A cover plate is fitted onto the connector. A locking mechanism is located at the top of the box, with the top of the connector connected to the locking mechanism. This invention prevents swabs soaked in acidic solutions from freezing during low-temperature refrigeration, thus avoiding potential damage to the patient's oropharynx when irritated.

1. The name of the design product: the refrigerator for veterinary of livestock. 2. The use of the design product: for constant temperature storage of veterinary medicine of livestock. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

This invention discloses a scaled-down model for the development and characterization of freeze-thaw processes for biological agents and its application. The model has a volume of 100-1000 mL. When placed vertically, the ratio of the maximum cross-sectional area in the horizontal direction to the length in the vertical direction is 1-10:1. The amount of biological agent is 20%-80% of its volume, and the ratio of the maximum cross-sectional area to the liquid level is 1-15:1. After the biological agent is loaded into the scaled-down model, it is transferred from room temperature to a freezer. After complete freezing, it is removed and thawed at room temperature. The freezing concentration factor is tested, and the duration of ice-water interface coexistence is recorded. The scaled-down model of this invention can obtain a freezing concentration factor greater than or close to that of the control model by comparing the freezing concentration factor with that of a large-volume freeze-thaw process. Multiple freeze-thaw cycles ensure that the ice-water interface coexistence time is not shorter than that of the large-volume container, which can be used for subsequent development and characterization of freeze-thaw processes for biological agents. The scaled-down model of this invention uses a small amount of biological agent and does not require temperature control equipment, which can significantly reduce research and development costs.