26 results about "Freezing environment" patented technology

The utility model relates to the technical field of automobile locks, and provides an automobile door lock which not only achieves basic locking and unlocking functions, but also integrates multiple intelligent functions such as signal triggering, suction breaking and icebreaking through ingenious structural design, a signal triggering mechanism can feed back the state of the door lock in real time, and the safety of the door lock is improved. The vehicle safety management level is improved; the suction breaking mechanism allows quick breaking of self-suction locking in emergency, accidents such as hand pinching of a vehicle door are avoided, and the use safety of passengers is improved; the icebreaking mechanism effectively solves the problem that the door lock cannot work normally in the low-temperature freezing environment, and the environmental adaptability of the door lock is improved. According to the automobile door lock, the use scene of the door lock is enriched, the intelligent level of the door lock is improved, the door lock can make an intelligent response according to the vehicle state and the requirements of passengers, and more convenient and safer use experience is brought to users.

The invention provides aerogel for sewage treatment and a preparation method thereof.The preparation method comprises the steps that a fluosilicate solution and a silicon source material are mixed, then a metal ion targeting polymer is added for a reaction, and fluosilicate modified silica sol is obtained; adding a titanium-based photocatalyst into the fluosilicate modified silica sol, and uniformly mixing to obtain a mixed solution; transferring the aerogel sol into a mold, keeping a constant temperature for gelatinization for 24 hours, putting into a freezing environment of-40 DEG C for freeze-drying, heating to 300 DEG C, and keeping the temperature for 3 hours to obtain the aerogel. Therefore, the adsorption capacity of the aerogel and the degradation effect on pollutants are improved.

The invention discloses a construction method for a variable-pile-length anti-pulling bearing system of a concrete precast pile in a frozen soil foundation, and relates to the technical field of engineering construction, and the construction method comprises the following steps: S1, carrying out frozen soil foundation profile mechanical distribution identification and pile length initial section division; s2, an optimized segmentation model used for reflecting the influence of pile length changes on the pulling resistance is constructed; s3, constructing a pile section critical pulling resistance prediction model; s4, identifying a potential local overrun region, and constructing an anti-pulling risk model; s5, adjusting the material structure configuration of each pile section; and S6, verifying the adjusted material structure configuration. According to the method, fine analysis of stress conditions of different pile sections in the freezing environment is achieved by dividing the initial section of the pile length and introducing the optimized segmentation model, so that the pulling resistance of the pile sections can be matched with actual frost heaving force distribution; by means of a linkage simulation mechanism of an anti-pulling risk model and a structure freezing response function, a set of complete structure enhancement verification path is constructed.

The utility model discloses an SAP internal curing sulphoaluminate cement concrete test piece curing device in a salt freezing environment, which belongs to the technical field of building material test equipment, and adopts the technical scheme that the SAP internal curing sulphoaluminate cement concrete test piece curing device comprises a curing box, a simulation component is arranged at the top of the curing box, and an auxiliary component is arranged in the curing box; the simulation assembly comprises a solution box bolted to the top of the curing box, a feeding port is formed in the top of the solution box, and a top cover is clamped to the inner side of the feeding port. The problems that when a concrete test piece is cured in a simulated salt freezing environment, the concentration of salt contacted with the test piece at different positions is different, the accuracy of a test result is influenced, and when the concrete test piece is cured in the simulated salt freezing environment, different test stages in a curing box are inconvenient to accurately control and different temperature conditions are required, and the test result is influenced are solved.

The invention discloses a control system and a control method for a partial-freezing fresh-keeping process of moso bamboo shoots, and belongs to the technical field of food fresh-keeping process control, and the control method comprises the following steps: acquiring the partial-freezing environment temperature, the temperature of the moso bamboo shoots, the hardness of the moso bamboo shoots and the browning characteristic value of a moso bamboo shoot incision image in the partial-freezing fresh-keeping process of the moso bamboo shoots; setting a prediction period, and generating a moso bamboo shoot comprehensive anomaly prediction index according to the partial freezing environment temperature, the moso bamboo shoot temperature, the browning characteristic value of the moso bamboo shoot notch image and the hardness of the moso bamboo shoots; generating an ideal temperature adjustment value according to the moso bamboo shoot comprehensive anomaly prediction index; generating a target temperature of the partial freezing environment according to the ideal temperature adjustment value; controlling the temperature of the partial freezing environment in the partial freezing preservation process of the moso bamboo shoots according to the target temperature of the partial freezing environment; according to the method, the problems of control lag and insufficient precision of a traditional method are solved, intelligent dynamic regulation and control are realized through multi-parameter fusion prediction, and the fresh-keeping control precision of the partial freezing fresh-keeping process of moso bamboo shoots is improved.

A phase-change fresh-keeping refrigerator includes a freezer compartment and a refrigeration system. The freezer compartment is provided with a phase-change layer, metal phase-change cells, and a drainage mechanism. The phase-change layer is a plate-like structure and is arranged on the bottom and side walls of the freezer compartment. The metal phase-change cells are polyhedron structures and are placed in the freezer compartment, stacked above the food that needs to be frozen and preserved, and in close contact with the food. The phase-change layer and the metal phase-change cells both include a metal shell and a low-temperature phase-change material. The low-temperature phase-change material is sealed in the metal shell and uses phase change to store cold energy. The low-temperature phase-change material transfers the phase change latent heat to the food through the metal shell, achieving rapid cooling of the food. The drainage mechanism can be arranged on the top, side walls, or bottom of the freezer compartment to accelerate air circulation and further increase the cooling rate of the food. The patent of this invention also provides a fresh-keeping control method for a phase-change fresh-keeping refrigerator, which can achieve rapid cooling of food and maintain a stable freezing environment.

Embodiments of the present invention provide a pre-filter and water system with internal and external dual filter bottles. The pre-filter of this application employs a dual filter bottle design, ensuring that even in special circumstances such as water hammer effects that could cause leakage or cracking of the internal transparent filter bottle, or low-temperature freezing environments, the external filter bottle remains sealed and provides protection, withstanding pipeline water pressure. This effectively prevents tap water from overflowing and avoids property damage to the user due to pre-filter failure.

The application discloses an outer water-cut sealing strip device and a vehicle, and belongs to the technical field of vehicle engineering. The outer water-cut sealing strip device comprises a main body, an elastic lip, a first flow guide, a second flow guide and a heating assembly. The first end of the elastic lip is fixed on the main body, and the side edge part of the second end of the elastic lip is provided with a contact sealing part. The first flow guide is fixed on the second end of the elastic lip, and the second flow guide is fixed on the main body. When the contact sealing part abuts against the side windshield, the first flow guide abuts against the second flow guide to seal the groove part between the elastic lip and the main body. The heating assembly is arranged in the groove part. The outer water-cut sealing strip device and the vehicle can ensure the smooth opening and closing of the frameless vehicle door side windshield in an extreme freezing environment.

The application belongs to the technical field of food processing, and discloses a preparation process and a synergistic regulation method of quick-frozen egg tarts, which comprises the following steps: a. selecting egg tart liquid raw materials, and preparing a targeted modified egg tart liquid through step-by-step dissolution, two-stage homogenization and segmented pasteurization; b. sending pre-prepared flaky puff pastry into an adjustable precision mold and a vacuum suction device to complete shape pressing and molding; c. completing quantitative and accurate filling of tart liquid through a high-precision filling pump and a flow regulating valve; d. completing gradient baking and curing of the egg tarts; e. completing gradient humidity control and anti-condensation cooling, controlling the temperature and relative humidity of the cooling environment in a process, and completing directional cooling of the egg tarts; f. completing modified atmosphere packaging of the cooled egg tarts in a ten-thousand-level clean environment; g. controlling the temperature and wind speed of the quick-freezing environment in a process, completing temperature-controlled freezing of the egg tarts, and directionally regulating the generation size and distribution of ice crystals in the freezing process; and after batch verification and metal detection, the egg tarts are stored in a warehouse, and finally, high freeze-thaw stability quick-frozen egg tart products are obtained.

The invention relates to a salt freezing environment dry-wet cycle environment simulation device, which belongs to the technical field of environment simulation devices and comprises a simulation box body and a simulation box cover plate capable of being opened and closed. The spraying mechanism is arranged in the simulation box body, is externally connected with a chlorine salt solution container and is used for spraying a chlorine salt solution into the simulation box body; the fan heater is arranged in the simulation box body and used for adjusting temperature and humidity, and an exhaust pipeline is arranged in the simulation box body and communicated with the fan heater; and the hygrometer is arranged in the box body of the simulation box and is used for monitoring the humidity in the box body. According to the invention, the damage to the box body caused by a chlorine salt solution when a salt freezing environment is simulated can be effectively avoided, the internal space is sufficient, and fabricated concrete pier test pieces with various sizes can be accommodated; the warm air blower can automatically or manually adjust the temperature according to needs, and the frequency of dry-wet circulation can be conveniently controlled. The device is simple in structure, convenient to install and capable of well simulating the dry-wet cycle environment under the salt freezing condition in the cold region.

The utility model relates to the technical field of temperature control equipment, in particular to a thermal insulation device of a double-spiral-tower quick-freezing warehouse, which comprises a cold air source, a thermal insulation plate and a telescopic driving mechanism for driving the thermal insulation plate to unfold, and the cold air source is mounted on the side wall of the quick-freezing warehouse and positioned between a first spiral tower and a second spiral tower. The heat insulation plate is arranged between the cold air source and the first spiral tower, the heat insulation plate comprises at least three layers of hard plastic plates, the adjacent hard plastic plates are in sliding connection, one end of the heat insulation plate and the telescopic driving mechanism are fixed to the side wall of the freezer, and the telescopic end of the telescopic driving mechanism is detachably connected to the free end of the heat insulation plate. The expansion area is changed through stretching and retracting of the heat insulation plate to control the cold source input quantity, and the temperature zoning effect is achieved. According to the utility model, the problem that the appearance defects such as collapse honeycomb and the like are caused by product freezing due to the fact that the freezing environment is consistent and the high-temperature products are suddenly extremely cold and are not uniformly cooled is solved.

A refrigeration appliance includes a fresh food compartment for storing food items in a refrigerated environment having a target temperature above 0° C., a freezer compartment for storing food items in a sub-freezing environment having a target temperature below 0° C., a system evaporator for providing a cooling effect to at least one of the fresh food compartment and the freezer compartment, and an ice maker disposed within the fresh food compartment for freezing water into ice pieces. The ice maker includes an ice mold with an upper surface comprising a plurality of cavities formed therein for the ice pieces, a heater disposed on the ice mold and an ice maker refrigerant tube abutting at least one lateral side surface of the ice mold and cooling the ice mold to a temperature below 0° C. via thermal conduction.

The invention discloses an anti-adhesion treatment method and system for quick freezing of tapioca pearls, and aims to solve the problem that the tapioca pearls are easy to adhere during freezing. The method comprises the following steps: acquiring the surface humidity, the surface viscosity and the freezing environment temperature of the tapioca pearls; determining an adhesion risk level through comparison with a preset threshold value; and when the freezing triggering condition is met, a self-adaptive freezing anti-adhesion strategy is generated in combination with the technological parameters and the real-time data, and a freezing treatment scheme is obtained. According to the method, a humidity sensor, a viscosity detection device and a temperature sensor are adopted for collecting parameters, the risk level is calculated through difference value weighting, and the freezing rate, time, temperature stratification and airflow frequency are dynamically adjusted according to the high-risk, particle-size-dominant or composite risk state. The system comprises a parameter acquisition module, a risk assessment module and a strategy generation module which correspond to the method. Through self-adaptive control, the adhesion risk is reduced, and the freezing efficiency and the product quality are improved.

The invention discloses a water conservancy project intelligent management method and system based on big data, and belongs to the technical field of water conservancy project intelligent management. Multi-source operation data such as the water flow rate, the capillary permeability, the freezing depth and the structural stress fluctuation are collected and reconstructed into time-space coupling data; through tensor decomposition, extracting an operation abnormity pilot factor, constructing a freeze-thaw model and deducing a structure accumulation risk factor; the risk factors are embedded into a graph structure, and future local degradation sensitive points are predicted in combination with a graph neural network; performing fuzzy logic reasoning on the sensitive points, and outputting reinforcement suggestions; constructing a region-level freezing environment vulnerability map among multiple projects, and generating a maintenance schedule and an inspection path; according to the method, prospective identification and refined maintenance of the freezing and thawing risk of the hydraulic structure are realized, and the engineering operation safety and the resource allocation efficiency are improved.

This invention discloses a big data-based intelligent management method and system for water conservancy projects, belonging to the field of intelligent management technology for water conservancy projects. It collects multi-source operational data such as water flow rate, capillary permeability, freezing depth, and structural stress fluctuations, reconstructing them into spatiotemporally coupled data. Through tensor decomposition, it extracts leading factors of operational anomalies, constructs a freeze-thaw model, and infers cumulative structural risk factors. These risk factors are embedded in a graph structure, and a graph neural network is used to predict future local degradation sensitive points. Fuzzy logic reasoning is applied to these sensitive points to output reinforcement suggestions. A regional-level freezing environment vulnerability map is constructed across multiple projects, generating maintenance schedules and inspection paths. This invention achieves proactive identification and refined maintenance of freeze-thaw risks in hydraulic structures, improving project operational safety and resource allocation efficiency.

The invention relates to a system and a method for simulating a supercooled large water drop icing environment in a wind tunnel. The system for simulating the supercooled large water drop icing environment in the wind tunnel comprises a wind tunnel test section, a wind tunnel contraction section, a wind tunnel stabilization section, a charged large water drop generation device and a uniform electric field generation device. Wherein the wind tunnel stable section, the wind tunnel contraction section and the wind tunnel test section are sequentially connected along the airflow direction, and the uniform electric field generation devices are respectively arranged on the wind tunnel upper wall surface and the wind tunnel lower wall surface and are used for generating uniform electric fields in the wind tunnel stable section, the wind tunnel contraction section and the wind tunnel test section. The charged large water drop generating device is arranged at the front end of the wind tunnel stable section and used for generating charged large water drops and introducing the charged large water drops into the wind tunnel stable section, and the charged large water drops are continuously accelerated and cooled before impacting a test piece in the wind tunnel test section; the preset speed is the same as the airflow speed in the wind tunnel test section, and the preset temperature is the same as the temperature in the wind tunnel.

The invention discloses a water-free freezing environment-friendly closestool and a using method thereof. The closestool comprises a closestool body, a packaging bag, an automatic cutting and sealing mechanism, a temporary storage freezing box system, a sensing device and a controller. The toilet bowl body comprises a toilet bowl shell, a toilet bowl frame and a toilet bowl inner container, and the toilet bowl inner container is located above the toilet bowl frame. The packing bag is sleeved on the closestool liner; the automatic cutting and sealing mechanism comprises a traction closing-in assembly and a sealing and cutting-off assembly, the traction closing-in assembly is used for closing and clamping the bag opening part of the packaging bag and downwards pulling the bag opening part to the sealing and cutting-off assembly, and the sealing and cutting-off assembly is suitable for sealing and cutting off the upper half part of the packaging bag; the temporary storage freezing box system is used for storing and cutting off the falling packaging bags and freezing the packaging bags; the controller is electrically connected with the closestool body, the induction device, the traction closing-in assembly, the sealing and cutting-off assembly and the temporary storage freezing box system. The invention further provides a using method, the problem of pain points of defecation of people in an extreme environment is solved, and the using experience is improved.

The invention discloses a multidimensional conductive composite fiber sensor for airspace sensing of a bionic robot. The multidimensional conductive composite fiber sensor sequentially comprises a regenerated cellulose composite fiber substrate layer, a polypyrrole / graphene conductive layer and a skin-imitating sensing layer from inside to outside, the polypyrrole / graphene conductive layer is formed by in-situ oxidative polymerization reaction of a polypyrrole and graphene nanosheet mixed system in a freezing environment. The sensor can perform airspace decoupling and high-sensitivity sensing on multiple signals such as pressure, gas, temperature and humidity. The sensor can be integrated on a mechanical arm, skin or joint surface of a bionic robot, is used for multi-modal information acquisition and self-energized sensing in a complex environment, and provides a novel material basis for airspace interaction and environment sensing of an intelligent bionic robot.

According to the wind cup assembly, the wind meter and the anti-freezing method of the wind meter, the wind cup assembly is assembled by adopting a hemming process, and the outer shell is fixed on the inner shell through the outer shell fixing structure, so that the wind cup assembly, the wind meter and the anti-freezing method of the wind meter have the advantages that the structural design is simple and reasonable, the manufacturing cost of the wind meter is reduced, the installation is convenient and simple, and the maintenance is easy; a heating structure is creatively arranged in an accommodating cavity for accommodating an integrated circuit device of the anemoscope, and normal operation of the anemoscope in a freezing environment is ensured through a specific heating method.

1. Name of the design product: Waterless ice freezing environment-friendly toilet. 2. Use of the design product: To solve the health needs in water resource shortage, ecologically sensitive areas, extreme climate, temporary sites, mobile scenarios. 3. Design points of the design product: In shape. 4. Pictures or photos best indicating the design points: Perspective view 1.

The invention relates to a preparation method of simulants for weathered layers of Mars with different characteristics, which comprises the following steps: acquiring chemical element information of a real weathered layer of Mars, selecting brownish red volcanic rock with approximate chemical characteristics as a raw material, and drying; the dried raw materials are smashed and screened in a classified mode, and components with various particle sizes are obtained; different types of target particle size gradation are designed to simulate typical mechanical properties of different areas on the surface of Mars, and each gradation can be used as a dry fire soil sample. Water or a salt solution is added into a dry-state fire soil sample, and a frozen sample is formed at low temperature and used for simulating a high-latitude or shallow freezing environment of Mars. In addition, secondary mineral powder can be added to simulate the surface environment of the sparks after acidification or salinization weathering, and more complex chemical characteristic requirements are met. The process is simple and convenient, the method is suitable for large-scale preparation, the simulant has good correspondence with a Mars weathered layer in the aspects of chemical components and physical and mechanical properties, and simulated fire soil coping with various working conditions can be produced.

The invention discloses a preparation method of a polymer material with a concentric microstructure, and the preparation method comprises the following steps: placing a mold filled with a polymer raw material in a freezing environment, so that a temperature gradient which is vertical to the mold wall and points to the center of the mold is generated in the polymer raw material, controlling the freezing rate of the polymer raw material, generating concentrically arranged ice crystals in the polymer raw material, and removing the ice crystals to obtain the polymer material with the concentric microstructure, the polymer raw materials comprise a polymer and water. According to the preparation method provided by the invention, the polymer material with the concentric microstructure can be prepared, the requirement of a required freezing environment on equipment is low, the success rate is high, and batch and large-scale production is easy to realize; and the prepared polymer material has excellent response to compression load, the manufacturing cost of the polymer material containing the microstructure is reduced, and the application scene of the polymer material containing the microstructure is expanded.

The invention relates to a preparation and use method of a gel electric brush galvanization medium, which comprises the following steps: preparing a main salt solution and a gel medium precursor solution, heating the main salt solution to 80-90 DEG C, dropwise adding the main salt solution into the gel medium precursor solution, and heating and stirring the gel medium precursor solution in the dropwise adding process to obtain the gel electric brush galvanization medium. Maintaining the temperature of the gel medium precursor solution to be higher than 90 DEG C, and continuously stirring and heating after dropwise adding until a milk white solution is obtained; placing the milk white solution in a low-temperature freezing environment for not less than 8 hours; and unfreezing in a natural environment to obtain the gel brush plating medium. The coating is uniform and compact, the splashing risk is low, the coating can be used for local plating, and equipment is simple.

The technical scheme provided by the invention belongs to the technical field of papermaking processes, and provides a production process of a freezing-resistant moisture-proof coated white board paper, which comprises the following steps: preparing materials, forming on a net, squeezing and drying, coating, calendering to form paper, and slitting. According to the embodiment of the invention, the raw material structures of the surface layer and the core layer and the sizing process are optimized to meet the index requirements of finished paper strength, water resistance and the like, so that certain toughness can be maintained in a freezing environment, the erosion of water vapor can be resisted, and meanwhile, stable physical properties can be maintained in a humid and hot environment to prevent deformation due to damp.

This invention belongs to the field of additive manufacturing technology, and particularly relates to a cryogenic bio-3D printing molding device and its application. The molding device includes an extrusion module, a freezing module, and a molding platform. The extrusion module is positioned above the molding platform, and the freezing module provides a freezing environment for the molding platform. The freezing module includes a freezing zone, which comprises a freezing chamber and a freezing component. The freezing component provides a low-temperature environment for the freezing chamber. The freezing chamber includes a supporting bottom and a freezing outer wall, with the outer wall surrounding the supporting bottom. The height of the freezing outer wall is greater than 1 cm. The molding platform is positioned on the supporting bottom. The ink extruded by the extrusion module is deposited, cooled, and solidified on the molding platform. This invention is applicable to slurries of different concentrations, including low-concentration slurries, and can print products with relatively high heights.

The invention discloses a method for synthesizing a manganese-based metal organic framework material at low temperature, and relates to the technical field of metal organic framework materials and material synthesis. The preparation method comprises the following steps: preparing a mixed solution of H2BDC and MnCl2; rapidly injecting triethylamine into the solution, fully mixing, placing in a low-temperature freezing environment, and carrying out coordination polymerization-nucleation-growth; after coordination polymerization, nucleation and growth are completed, room-temperature unfreezing is conducted, sediment is separated from a reaction solution through centrifugal operation after unfreezing, and the manganese-based metal organic framework material is obtained through washing and drying. The synthesis of the metal organic framework material can be completed through low-temperature standing, zero heating and zero high pressure are realized in the whole process, the energy consumption and the safety risk are synchronously reduced to the minimum, and the realization is simple; and synthesis can be realized without an ultrasonic probe, a microwave cavity or vacuum / electrolysis equipment or low-temperature equipment or even outdoor in winter, so that the investment and operation cost is remarkably reduced.